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Find cheap flights to St. Louis from $1,027

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight to St. Louis departing on 18/9. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
Thu 6/6
Thu 13/6

Search hundreds of travel sites at once for deals on flights to St. Louis

 
These are the airlines KAYAK users have selected most often from within our search results for flights to St. Louis, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results for flights to St. Louis, as well as popular online travel agencies
In the last 7 days, travellers have searched 42,573,820 times on KAYAK, and here's why:

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Cheap flight deals to St. Louis

Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights to St. Louis that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices and deals for you by selecting your travel dates.
Choose your dates
17:35 - 13:48SYD-STL
35h 13m2 stops
14:43 - 06:15STL-SYD
24h 32m1 stop
$1,490American Airlines
Find Deal
Wed, 22 May - Sun, 26 May
09:15 - 17:22SYD-STL
23h 07m2 stops
18:18 - 07:05STL-SYD
21h 47m2 stops
$1,537American Airlines
Find Deal
Wed, 22 May - Sun, 26 May
21:15 - 09:02MEL-STL
26h 47m2 stops
08:00 - 05:45STL-MEL
30h 45m2 stops
$1,555American Airlines
Find Deal
Wed, 29 May - Sun, 2 Jun
22:00 - 12:31BNE-STL
29h 31m2 stops
09:52 - 05:00STL-BNE
28h 08m2 stops
$1,557American Airlines
Find Deal
Wed, 22 May - Sun, 26 May
15:50 - 19:28SYD-STL
18h 38m1 stop
19:20 - 06:15STL-SYD
19h 55m1 stop
$1,706Qantas Airways
Find Deal
Wed, 22 May - Sun, 26 May
22:00 - 23:17BNE-STL
40h 17m1 stop
19:20 - 09:35STL-BNE
23h 15m2 stops
$1,738Qantas Airways
Find Deal
Wed, 22 May - Sun, 26 May
20:00 - 20:01MEL-STL
39h 01m3 stops
09:50 - 11:35STL-MEL
34h 45m3 stops
$1,931Air Canada
Find Deal
Wed, 29 May - Sun, 2 Jun
08:15 - 23:17SYD-STL
30h 02m2 stops
07:01 - 06:10STL-SYD
32h 09m2 stops
$2,816Japan Airlines
Find Deal
Wed, 22 May - Sun, 26 May
10:30 - 19:54BNE-STL
24h 24m2 stops
11:38 - 06:30STL-BNE
27h 52m2 stops
$3,241United Airlines
Find Deal
Wed, 22 May - Sun, 26 May
09:20 - 15:21SYD-STL
45h 01m2 stops
11:00 - 07:20STL-SYD
53h 20m3 stops
$3,584Air Canada
Find Deal
Mon, 3 Jun - Mon, 10 Jun

Flights to St. Louis - Travel Insights & Trends

Get data-powered insights and trends into flights to St. Louis to help you find the cheapest flights, the best time to fly and much more.

What is the cheapest day to fly to St. Louis?

The average price of all flights to St. Louis clicked on KAYAK for each day over the last 12 months.
Based on KAYAK data, the cheapest day to fly to St. Louis is Sunday where tickets can be as cheap as $2,407. On the other hand, the most expensive day to fly is Thursday, where prices are $3,002 on average.

What is the cheapest month to fly to St. Louis?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for flights to St. Louis, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.
The cheapest month for flights to St. Louis is March, where tickets cost $1,490 on average for one-way flights. On the other hand, the most expensive months are May and September, where the average cost of tickets from Australia is $3,487 and $2,858 respectively. For return trips, the best month to travel is February with an average price of $2,041.

What is the cheapest time of day to fly to St. Louis?

The average price for all flights to St. Louis depending on the time of departure, clicked by users on KAYAK in the last 2 weeks.
The cheapest time of day to fly to St. Louis is generally in the afternoon, when flights cost $2,239 on average. The most expensive time of day to fly to St. Louis is generally in the evening, which is peak travel time and where the average cost of a ticket is $2,444.

How far in advance should I book a flight to St. Louis?

To calculate daily average prices, KAYAK takes all prices for each day before departure over the last year for flights to St. Louis, removes the top 0.1% to account for outliers, and then takes the average of all the values for each month.
To get a below average price, you should book around 0 weeks before departure. For the absolute cheapest price, our data suggests you should book 14 days before departure.

How long is the flight to St. Louis?

The duration of your flight to St. Louis depends on your departure and arrival airports. Obviously any flights that include a layover will also be longer. The most popular routes to St. Louis on KAYAK are from Melbourne, which takes 19h 22m, Brisbane, which takes 22h 13m, and Sydney, which takes 30h 02m.

Good to know

Low season

January

High season

October

Cheapest flight

$1,027
Best time to beat the crowds (2% less expensive on average)
Most popular time to fly and prices are also 11% lower on average.
Flight from Sydney to St. Louis

When to book flights to St. Louis

Are your dates flexible? Find out the best times to travel to St. Louis based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated return price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or returns with a duration up to 40 days. The information is for flights to St. Louis based on your location. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs - booking St. Louis flights

  • How far is St. Louis from central St. Louis?

    The distance between St. Louis and the city centre of St. Louis is 20 km.

  • What is the name of St. Louis’s airport?

    There is only 1 airport in St. Louis, called St. Louis (STL). It can also be referred to as Lambert Field, Lambert-St Louis, St. Louis Lambert, or St. Louis Lambert Intl.

  • How does KAYAK find such low prices on flights to St. Louis?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights to St. Louis.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket to St. Louis?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to St. Louis is likely to change within 7 days, so travellers know whether to wait or book now.

  • What is the Hacker Fare option on flights to St. Louis?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to St. Louis with an airline and back with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight to St. Louis?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to St. Louis up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

  • Which airline offers the most flights to St. Louis?

    Of the 9 airlines that fly to St. Louis, Southwest offers the most flights, with around 1,430 per week, followed by American Airlines with 365 flights per week.

See more FAQs

Top tips for finding cheap flights to St. Louis

  • Enter your preferred departure airport and travel dates into the search form above to unlock the latest St. Louis flight deals.

Prefer to fly direct to Lambert-St Louis?

Find which airlines fly direct to Lambert-St Louis, which days they fly and book direct flights.

Direct departures

Australia to Lambert-St Louis

Monday

ANA, Aer Lingus, Aeromexico, +38 more

ANA, Aer Lingus, +39 more

Tuesday

ANA, Aer Lingus, Aeromexico, +39 more

ANA, Aer Lingus, +40 more

Wednesday

ANA, Aer Lingus, Aeromexico, +37 more

ANA, Aer Lingus, +38 more

Thursday

ANA, Aer Lingus, Aeromexico, +39 more

ANA, Aer Lingus, +40 more

Friday

ANA, Aer Lingus, Aeromexico, +38 more

ANA, Aer Lingus, +39 more

Saturday

ANA, Aer Lingus, Aeromexico, +39 more

ANA, Aer Lingus, +40 more

Sunday

ANA, Aer Lingus, Aeromexico, +40 more

ANA, Aer Lingus, +41 more

See more direct flights

Direct returns

Lambert-St Louis to Australia

Monday

ANA, Aer Lingus, Aeromexico, +38 more

ANA, Aer Lingus, +39 more

Tuesday

ANA, Aer Lingus, Aeromexico, +39 more

ANA, Aer Lingus, +40 more

Wednesday

ANA, Aer Lingus, Aeromexico, +37 more

ANA, Aer Lingus, +38 more

Thursday

ANA, Aer Lingus, Aeromexico, +39 more

ANA, Aer Lingus, +40 more

Friday

ANA, Aer Lingus, Aeromexico, +38 more

ANA, Aer Lingus, +39 more

Saturday

ANA, Aer Lingus, Aeromexico, +39 more

ANA, Aer Lingus, +40 more

Sunday

ANA, Aer Lingus, Aeromexico, +40 more

ANA, Aer Lingus, +41 more

See more direct flights
See more direct flights

Top 5 airlines flying to St. Louis

 
See real verified KAYAK customer reviews for airlines flying to St. Louis. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline from Australia to St. Louis. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with to St. Louis? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
8.2
Air New ZealandOverall score based on 638 reviews
7.6Food
8.1Comfort
8.8Crew
8.4Boarding
7.9Entertainment
Airline reviews

Great meal. Best seats ever! They need to teach other airlines how to do that.

10.0 ExcellentSteveDiane, Apr 2024TBU - AKL
Read more about Air New Zealand reviews

Great meal. Best seats ever! They need to teach other airlines how to do that.

The staff and crew on board were excellent. Business class however, was very weird. I thought we would have individual pods, but the way it was set up was unexpected. Not very private and If you wanted to lay down, you had to have an entire bed made up for you by the crew, rather than how Delta one works where you could just lie down whenever you feel like it. It was a 16 hour flight. I chose not to have my bed made, and that turned out to be a good idea because everybody who had their bed made had to wait for the crew to roll up their mattresses. So strange!

Crew were pleasant, happy to be there and were a joy to be around. Entire operation was professional, well thought out and ran like a Swiss clock.

Couldn’t request a vegan meal somehow but I noticed other people getting them

United flight from SFO to PDX was cancelled. I will ask for a refund. Had to book on Alaska

They announced food service but then never came around. We also couldn’t land so kept trying to get to runway and then had to come up and go around happened like 3 times and cause the child next to me to start throwing up

Good food and entertainment options. Great Staff that were all welcoming and caregiving.

The recline on the seat in front of me came back so that I was staring at the top of the man’s head in front of me the whole trip. He refused to bring his seat back up twice every time he was instructed to do so and only relented when he had a tray of good in front of him. And then right back in my lap!!! Horrible man!! I complained to the staff multiple times, but no one would address the issue. Otherwise, it would have been a perfect flight.

Carring crew, nice ambiance of the cabin, comfortable beds, good food well served. We liked everything.

The pilot tried to make up for lost time due to delays that were out of her control. She communicated the issues openly and clearly and made every effort to do what she could to alleviate issues.

Initial flight was cancelled so moved to an alternative flight. As a result, stuck in a middle seat. Flight then place in holding pattern prior to landing resulting in a very late trip home.

There was nothing I didn’t like, prices a little lower would help

BA Airbus A380 BC upstairs had 2 3 2 layout. The seat was comfy but access for those in middle or window seats had to climb over others fest to get to ailse when seats in bed mode. The layout was not nearly as private as other layouts. The staff was amazing as well as the food. Most airline food is average but this was restaurant quality.

Following a marathon flight riddled by delays and changes from Santiago, Chile, my flight to Melbourne from Sydney was on schedule but I was transferred to the next flight. The reason by ticketing and the floor manager was I missed the entry to flight by one minute! That's right, the emphasised that if I was 1 minute earlier I would be on the flight. I asked what was the point them emphasising 1minute overdue and how that helped me or the situation. They didn't care at all. Replying that if it was one minute earlier they would've done something and smirking delivering the information. Australian's do call Australia home, Qantas calls Australian's suckers.

1) crackly headphone jack 2) one of the emergency seats recline. Usually second row does. But in this case neither did 3) food was scrambled eggs or fruit. 4) fruit should not be the option to eggs 5)miserable unpleasant crew not a smile. Thought that was a virgin thing

Qantas are unable to service and unfit for purpose, they cannot transport Australians on time to overseas destinations. On top of the inflated ticketing, the Sydney flight to Santiago was impacted because the plane was delayed arriving and then further bungling by Qantas admitting the ground new ground crew in charge of cleaning were not trained. The impact on passengers with connecting flights was tremendous and long ques of frustrated passengers waiting for rescheduling. **Qantas has become the Australian Spirit of disappointment**

The staff we fantastic and seemed to work very well with each other

Business lounge in Melbourne mediocre. Look at Emirates or Qatar, Qantas! Great friendly crew. Food was good but Emirates is a level above. Business seat good. But can’t compare to Qatar. Main reason for booking Qantas is loyalty and terrific connection via Perth to LHR.

I was pleasantly surprised with my flight to LA with Qantas. Although seats were not the roomies, service was excellent.

The service and smooth landing. Food was delicious and the staff was friendly. We arrived earlier than scheduled.

Surprisingly easy! I was hesitant to try this, but the cost swayed me. I actually felt like I had less stress than all the taxiing and possible delays that occur with short regional flights where you spend less time in the air than getting to and from the plane..

It was okay, no wifi or entertainment real disappointment. Staff onboard not very friendly.

This flight was delayed multiple times and eventually canceled around 2-3ish. Original take off time was around 10:30am. By 3, there were no other options out of Houston, so stuck in Houston for from 3pm - 11am the next day.

It started with multiple delays, cancellations, re booking, 5 hour lay over and finally on a plane from Chicago to Pittsburgh. Gates, times, etc were changed multiply times. Once on the plane, staff was fine, but built in tv did not work and could not even turn it off. Light at eye level the entire trip, so sleeping was near impossible. No snacks or drinks given.

Should have video screens Plane audio was poor and without wired connection hard to understand crew. Should serve more than just cups of water and pretzels on six hour flight. Did not see crew rest of flight. Fix charging sockets to retain charging blocks.

Only water and pretzels served on six hour flight. Did not see crew rest of flight. No video screens and so no wired audio. Poor sound on plan so did not understand anything said by crew. This is a safety issue. Electrical socket did not retain charging block so could not charge phone. No video screen so could not watch movies. Phone is not a substitute.

It was fine. Flight was on time and arrived at destination with 15 min to spare.

My bag was lost with my medicine and I am very inconvenienced. I don’t know what happened, however I want you to do a better job on getting people’s bag back

I paid $380 for my one-way ticket from California to Minnesota. The fair did not include online check-in. I received instructions from their app to check in at a kiosk. At the kiosk, the boarding pass would not print until an actual person came to verify that I had a personal item and not a carry-on item, On the plane, the person next to me was drunk and allowed to continue to order alcohol. United is garbage I’d rather fly spirit.

The food that was offered based on class level of your ticket was absolutely ridiculous and disgusting. They didn't even hot tea to serve, the food was horrible. On our departure flight I was seated in premium plus economy and considering the cost of the flight the food was literally some of the worst I've ever eaten. On the return flight I sat in economy with extra leg room and was given a thin little throw "blanket" and a flimsy little pillow. The air condition was on artic and the seating arrangement wasn't really worth the money. The seat didn't recline good enough and the foot rest was laughable. Total waste.

Delayed almost 4 hours for a 45 minute flight with no explanation.

Again, multiple delays and I eventually just canceled and drove!

Great crew. We were delayed so that late passengers could get on the flight. Love the bedding in business class. Good food. Great experience.

The CX617 from HK to BKK was delayed more than 1.5 hours.

Horrible - they lied to me about baggage & boarding, even though I specifically spoke to their agents the day before my flight about my issue. When I showed up they did not let me board and stranded me at my airport until I bought a new flight with money I did not have to spend.

All four American Airlines flights I took in last seven days were delayed. Caused me loads of problems, missed meetings, loss of time and money.

American cancelled our flight home. Zero option for hotel, alternative transportation and took 3 hours to find our bags so we could take a 3 hour UBER ride home on our dime. Never flying AA again.

They gave my seat away although it was a connecting flight with them and the flight was a bit delayed.

They ocer booked the connecting flight. My bags took a long time to come out, nevertheless I got to the gate in time to board, but they have given my seat to another passenger. They were aware I was connecting from another flight that was a little late, but they did not care. The customer representatives were rude. A horrible experience.

Flight was cancelled had to move to another gate late again no internet paid for the month and never can use it waste of money

I liked the early check in. Flight was a bit bumpy due yo weather. Overall, everything went well.

Limited snack options cause the snack vendor was on strike

The experience was generally above average. The only downside was the absence of WiFi during my flight from Vancouver to San Francisco.

I was appalled to have to pay for just a regular seat when I went to book 24 hrs before my flight! Because it was only an hour flight I didn’t choose a seat from Grand Junction to Denver, but I did for Toronto and had to pay just to choose a regular available seat! In my 60+ years of flying this was the first time I have heard of this. Also, allowing people to bring on “huge “ suitcases, not carry on size, but much bigger, and then a large pack pack stuffed. So they take up all the room in the overhead bins and if we are later boarding, there is no room so we have to check our small carry on. I have already paid for and checked in one bag! I certainly will not choose to fly with United again unless it is the “only” airline available!

on demand entertainment in seat back awesome Check in Kiosk too demanding with endless demand for more information information then says go to counter. Counter agent unfriendly. Do it yourself check in luggage procedure not intuitive, upset employees frustrated the whole procedure.

It was an excellent experience, traveling from Toronto to Denver with United.

Ontime boarding. Almost 1 hour take off delay. We could have boarded slightly later since the pilots were in traffic

Flight was delayed, I had to put my luggage all the way in the back! They served only a beverage no snack on the way in Air Canada, definitely not a good first impression.

Fresh fuit or veg snacks would be so great, but there are two good restaurants in Denver airport. Try Etais UDIS or Freshens DIA for nutritious delicious pita sandwiches/ donairs and crepes in Freshens.

Crowded plane but it flew on time and had friendly staff

Book Cheap St. Louis Plane Tickets

Recent return flight deals

 
These are the cheapest return flights to St. Louis found on KAYAK in the last 72 hours.
22/5Wed
2 stopsAmerican Airlines
35h 13mSYD-STL
26/5Sun
1 stopAmerican Airlines
24h 32mSTL-SYD
$1,490
22/5Wed
2 stopsAmerican Airlines
23h 07mSYD-STL
26/5Sun
2 stopsAmerican Airlines
21h 47mSTL-SYD
$1,537
29/5Wed
2 stopsAmerican Airlines
26h 47mMEL-STL
2/6Sun
2 stopsAmerican Airlines
30h 45mSTL-MEL
$1,555
22/5Wed
2 stopsAmerican Airlines
29h 31mBNE-STL
26/5Sun
2 stopsAmerican Airlines
28h 08mSTL-BNE
$1,557
22/5Wed
1 stopQantas Airways
18h 38mSYD-STL
26/5Sun
1 stopQantas Airways
19h 55mSTL-SYD
$1,706
22/5Wed
1 stopQantas Airways
40h 17mBNE-STL
26/5Sun
2 stopsQantas Airways
23h 15mSTL-BNE
$1,738
29/5Wed
3 stopsAir Canada
39h 01mMEL-STL
2/6Sun
3 stopsAir Canada
34h 45mSTL-MEL
$1,931
22/5Wed
2 stopsJapan Airlines
30h 02mSYD-STL
26/5Sun
2 stopsJapan Airlines
32h 09mSTL-SYD
$2,816
22/5Wed
2 stopsUnited Airlines
24h 24mBNE-STL
26/5Sun
2 stopsUnited Airlines
27h 52mSTL-BNE
$3,241
3/6Mon
2 stopsAir Canada
45h 01mSYD-STL
10/6Mon
3 stopsAir Canada
53h 20mSTL-SYD
$3,584

Search by stops

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Recent one-way flight deals

 
Only flying one-way? Below are some of the best deals for one-way flights to St. Louis found on KAYAK in the last 72 hours.
18/9Wed
1 stopAmerican Airlines
21h 30mSYD-STL
$1,027
17/9Tue
2 stopsAmerican Airlines
26h 57mSYD-STL
$1,031
17/9Tue
1 stopAmerican Airlines
21h 34mSYD-STL
$1,036
16/9Mon
2 stopsAmerican Airlines
26h 05mSYD-STL
$1,042
15/9Sun
2 stops
41h 00mSYD-STL
$1,415
16/9Mon
1 stopUnited Airlines
29h 07mSYD-STL
$1,816
15/9Sun
1 stopQantas Airways
21h 30mSYD-STL
$1,964
17/9Tue
3 stops
44h 10mSYD-STL
$2,023
18/9Wed
1 stopUnited Airlines
28h 32mMEL-STL
$2,100
17/9Tue
3 stopsAir Canada
50h 45mSYD-STL
$2,256

Search by stops

Search by airline

Search by price

Recent domestic flight deals

24/5Fri
multi-stopSun Country Air
24h 00mDEN-STL
26/5Sun
multi-stopSun Country Air
15h 40mSTL-DEN
$279
28/5Tue
multi-stopDelta
7h 20mIAD-STL
30/5Thu
multi-stopDelta
3h 40mSTL-IAD
$284
26/5Sun
multi-stopDelta
4h 09mDCA-STL
29/5Wed
multi-stopDelta
4h 12mSTL-DCA
$284
28/5Tue
directAlaska Airlines
4h 00mSEA-STL
29/5Wed
directAlaska Airlines
4h 19mSTL-SEA
$358
28/5Tue
directAlaska Airlines
4h 00mSEA-STL
30/5Thu
directAlaska Airlines
4h 14mSTL-SEA
$388
2/7Tue
multi-stopUnited Airlines
7h 03mIAD-STL
6/7Sat
directUnited Airlines
2h 10mSTL-IAD
$441
29/6Sat
directUnited Airlines
2h 38mEWR-STL
6/7Sat
directUnited Airlines
2h 22mSTL-EWR
$451
18/5Sat
multi-stopSpirit Airlines
6h 23mEWR-STL
21/5Tue
multi-stopSpirit Airlines
10h 14mSTL-EWR
$483
11/8Sun
multi-stopAmerican Airlines
9h 40mIAD-STL
11/8Sun
multi-stopAmerican Airlines
6h 56mSTL-IAD
$1,652
11/8Sun
multi-stopAmerican Airlines
8h 03mBWI-STL
11/8Sun
multi-stopAmerican Airlines
7h 05mSTL-BWI
$1,958

Search by stops

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Flights to St. Louis

Destination:

St. Louis (STL)United States

Return flight deals:

St. Louis - Australia

Cabin classes: