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Find cheap flights to St. Louis from $1,377

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 19/10. 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 23/5
Thu 30/5

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 44,632,927 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
10:00 - 21:05BNE-STL
50h 05m2 stops
16:05 - 08:30STL-BNE
73h 25m3 stops
$2,389Air Canada
Find Deal
Wed, 22 May - Sun, 26 May
10:00 - 21:05BNE-STL
50h 05m2 stops
16:05 - 08:30STL-BNE
73h 25m3 stops
$2,397Air Canada
Find Deal
Wed, 22 May - Sun, 26 May
08:15 - 22:54SYD-STL
53h 39m2 stops
18:02 - 06:10STL-SYD
45h 08m2 stops
$2,422Japan Airlines
Find Deal
Thu, 2 May - Mon, 6 May
08:15 - 22:54SYD-STL
29h 39m2 stops
18:02 - 06:10STL-SYD
45h 08m2 stops
$2,431Japan Airlines
Find Deal
Thu, 2 May - Mon, 6 May
10:00 - 21:05BNE-STL
50h 05m2 stops
11:00 - 07:00STL-BNE
53h 00m2 stops
$2,453Air Canada
Find Deal
Wed, 22 May - Sun, 26 May
17:35 - 22:54SYD-STL
20h 19m1 stop
19:20 - 06:15STL-SYD
19h 55m1 stop
$2,951Qantas Airways
Find Deal
Thu, 2 May - Mon, 6 May
17:35 - 22:54SYD-STL
20h 19m1 stop
18:02 - 06:50STL-SYD
21h 48m1 stop
$2,962Qantas Airways
Find Deal
Thu, 2 May - Mon, 6 May
22:00 - 23:17BNE-STL
40h 17m1 stop
19:20 - 11:35STL-BNE
25h 15m2 stops
$3,190American Airlines
Find Deal
Wed, 22 May - Sun, 26 May
21:15 - 11:10MEL-STL
28h 55m2 stops
14:43 - 05:45STL-MEL
48h 02m2 stops
$3,192American Airlines
Find Deal
Thu, 16 May - Mon, 20 May
21:15 - 19:54MEL-STL
37h 39m2 stops
15:15 - 19:35STL-MEL
37h 20m3 stops
$6,372Emirates
Find Deal
Wed, 15 May - Sun, 19 May

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 $2,475. On the other hand, the most expensive day to fly is Thursday, where prices are $3,049 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 October, where tickets cost $2,635 on average for one-way flights. On the other hand, the most expensive months are December and February, where the average cost of tickets from Australia is $4,186 and $3,779 respectively. For return trips, the best month to travel is September with an average price of $2,354.

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 $2,303 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 $2,545.

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 24 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 Sydney, which takes 22h 20m, Brisbane, which takes 27h 54m, and Melbourne, which takes 31h 39m.

Good to know

Low season

November

High season

May

Cheapest flight

$1,377
Best time to beat the crowds (11% less expensive on average)
Most popular time to fly and prices are also 5% lower on average.
Flight from Melbourne 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 784 per week, followed by American Airlines with 315 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, +38 more

ANA, Aer Lingus, +39 more

Thursday

ANA, Aer Lingus, Aeromexico, +40 more

ANA, Aer Lingus, +41 more

Friday

ANA, Aer Lingus, Aeromexico, +39 more

ANA, Aer Lingus, +40 more

Saturday

ANA, Aer Lingus, Aeromexico, +40 more

ANA, Aer Lingus, +41 more

Sunday

ANA, Aer Lingus, Aeromexico, +41 more

ANA, Aer Lingus, +42 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, +38 more

ANA, Aer Lingus, +39 more

Thursday

ANA, Aer Lingus, Aeromexico, +40 more

ANA, Aer Lingus, +41 more

Friday

ANA, Aer Lingus, Aeromexico, +39 more

ANA, Aer Lingus, +40 more

Saturday

ANA, Aer Lingus, Aeromexico, +40 more

ANA, Aer Lingus, +41 more

Sunday

ANA, Aer Lingus, Aeromexico, +41 more

ANA, Aer Lingus, +42 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 658 reviews
8.4boarding
8.1comfort
8.8crew
7.9entertainment
7.6food
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.

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.

Wonderful crew, good food. Absolutely loved the wine spritz and wish I could buy it!

Don’t like last minute airline change. Not able to choose seat earlier.

Enjoyed the new possibilities of in flight entertainment. Been awhile since I've flown, and that was a nice surprise. Being able to pick from such a variety was personalized and welcomed.

Due to one crew member not showing up to work, our flight was significantly delayed causing us to miss our connecting flight in Houston to Mississippi causing us to be delayed by more than 6 hours and missing our event all together. Very disappointing. All because ONE crew member called in sick. United did grant us a $15 meal voucher, which was a small but appreciated concession that I wasn’t able to use because I ordered my lunch and paid for it before applying the concession, and the staff said it was too late to use it. Ugh! We also had a TWO delay coming back from Mississippi, but that was on American Airlines and it was due to weather, so not their fault. Anyway, not at all impressed with United’s handling of our flight and the HUGE disappointment of missing our important family event for our 90 year old mother. All that money and all that stress and emotions for nothing. Having to wait the hour to bring an employee from LAX seemed like something that should not have happened. Why don’t you have a local back-up? Santa Ana is not a little airport in a rural area.

Terrible. 2 hour delay. Sat on the tarmac. Missed my connecting flight. Had to ARGUE with Customer service to get a hotel and food. Terrible experience with my loyal carrier

Our seat tv didn’t work All the rest was perfect

Flight delayed from Cape Town to Washington then got diverted to miami and in miami we had to fend for ourselves , im still trying to get to Shreveport now

I liked the exit row seat. Hated the distance between gates in Houston.

delay several times and wait extra long to board. no entertainment service because there are problem for some rows. always encounter some delays for the last flight of the day.

I just wrote a text which was supposed to be for the flight from Denver to spokane not Frankfurt to Denver.

On time every leg of the journey and exceptional staff at counter, gate, and on board. I haven’t travelled in US for a long time and was genuinely surprised how pleasant this was.

Meals were adequate but could be better. Lots of movies, podcasts, tv shows. We really enjoyed using our personal headsets highly recommended. 15 hrs flight great to travel at night.

The delays (5 hrs) were a comedy of errors, and the multiple safety issues encountered were very concerning.

Entertainment was okay not because anything was wrong but it is a short flight so having no wifi is annoying but understandable. Crew was outstanding as usual

Those seats were way too narrow. I had the middle seat, one person was a very skinny person and we still couldn’t avoid touching each other anytime one of us moved. The other person was larger and we were basically sitting in each others lap the entire flight. There was zero entertainment. The flight was long enough to justify tvs, but no. Gotta sit there in your infant seat and twiddle your thumbs.

The Flight attendant had an attitude and didn't allow anyone any time to prepare for landing despite being absent throughout the entire trip

Flight boarded without pilots. Sat on plane for 3 hrs. after over an hour late boarding. Plane never took off. Had to deplane near midnight. Line for rebooking was 3 hours + long. I had to leave.

The flight was great but board was a nightmare. The gate was changed 4 times during the layover period

The experience was great and much better than the flight going out. of course I was in first class but the service was excellent

Cold air blew constantly on my legs almost making me numb.

Missed the flight because of them and up geting a rental car

Delayd flight out of atl as always miss my conection in dfw no flight untill next day

Comfort of seats, ease of boarding. Food selection could be better

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

Headphones for the movies have too much bass and can't be adjusted. Almost impossible to hear. Great movie selections but can't really watch them because you can't hear them. Also the system is very slow.

This was the first AC flight in a long time that we experienced no delays or frustrations. The gate attendant was extremely polite and accommodating to my husband who has Parkinson’s disease which made boarding extremely stress free. Flight departed ON TIME and was a smooth ride. If only all my AC experiences could be like this.

The Air Canada agent was very helpful helping with my luggage and cat carrier when I went there instead of United.

United force you to download their App to do the check-in.

I didn’t like the fact that all the customs officers went to lunch so I was in line for 90 minutes due to where the staff directed me. We were told three very different reasons for why the plane was delayed. It was a crowded plane with difficult storage situations for the Carry On bags. The Air Canada airline staff were all very good and professional. I was so disappointed in my cheese and fruit box as the cheese had molded and the fruit wasn’t fresh so I couldn’t eat the majority of the food. This was the last meal I could find as the restaurants had closed when I got in to my destination. I think you could work on improving the food quality.

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 stopsAir Canada
50h 05mBNE-STL
26/5Sun
3 stopsAir Canada
73h 25mSTL-BNE
$2,389
22/5Wed
2 stopsAir Canada
50h 05mBNE-STL
26/5Sun
3 stopsAir Canada
73h 25mSTL-BNE
$2,397
2/5Thu
2 stopsJapan Airlines
53h 39mSYD-STL
6/5Mon
2 stopsJapan Airlines
45h 08mSTL-SYD
$2,422
2/5Thu
2 stopsJapan Airlines
29h 39mSYD-STL
6/5Mon
2 stopsJapan Airlines
45h 08mSTL-SYD
$2,431
22/5Wed
2 stopsAir Canada
50h 05mBNE-STL
26/5Sun
2 stopsAir Canada
53h 00mSTL-BNE
$2,453
2/5Thu
1 stopQantas Airways
20h 19mSYD-STL
6/5Mon
1 stopQantas Airways
19h 55mSTL-SYD
$2,951
2/5Thu
1 stopQantas Airways
20h 19mSYD-STL
6/5Mon
1 stopQantas Airways
21h 48mSTL-SYD
$2,962
22/5Wed
1 stopAmerican Airlines
40h 17mBNE-STL
26/5Sun
2 stopsAmerican Airlines
25h 15mSTL-BNE
$3,190
16/5Thu
2 stopsAmerican Airlines
28h 55mMEL-STL
20/5Mon
2 stopsAmerican Airlines
48h 02mSTL-MEL
$3,192
15/5Wed
2 stopsEmirates
37h 39mMEL-STL
19/5Sun
3 stopsEmirates
37h 20mSTL-MEL
$6,372

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.
19/10Sat
3 stops
43h 33mMEL-STL
$1,377
16/10Wed
2 stopsJapan Airlines
44h 39mMEL-STL
$1,411
27/4Sat
2 stops
53h 29mSYD-STL
$1,551
17/10Thu
2 stopsAmerican Airlines
27h 25mMEL-STL
$1,703
16/10Wed
2 stopsAmerican Airlines
26h 29mMEL-STL
$1,706
16/10Wed
1 stopUnited Airlines
21h 13mMEL-STL
$1,958
16/10Wed
3 stopsUnited Airlines
25h 12mMEL-STL
$1,990
26/4Fri
1 stopQantas Airways
20h 19mSYD-STL
$1,998
18/10Fri
3 stopsAir Canada
48h 50mMEL-STL
$2,028
19/10Sat
3 stopsAir Canada
29h 30mMEL-STL
$2,060

Search by stops

Search by airline

Search by price

Recent domestic flight deals

20/5Mon
multi-stopDelta
7h 35mDEN-STL
21/5Tue
multi-stopDelta
6h 44mSTL-DEN
$245
25/5Sat
multi-stopDelta
5h 21mDEN-STL
29/5Wed
multi-stopDelta
4h 55mSTL-DEN
$273
24/5Fri
multi-stopSun Country Air
25h 10mDEN-STL
26/5Sun
multi-stopSun Country Air
15h 40mSTL-DEN
$287
30/5Thu
multi-stopSun Country Air
17h 08mDEN-STL
9/6Sun
multi-stopSun Country Air
24h 00mSTL-DEN
$318
25/5Sat
directAlaska Airlines
3h 58mSEA-STL
5/6Wed
directAlaska Airlines
4h 19mSTL-SEA
$368
30/5Thu
directAlaska Airlines
3h 59mSEA-STL
5/6Wed
directAlaska Airlines
4h 14mSTL-SEA
$399
25/9Wed
directUnited Airlines
2h 21mIAD-STL
28/9Sat
multi-stopUnited Airlines
5h 41mSTL-IAD
$442
23/5Thu
directUnited Airlines
2h 39mEWR-STL
30/5Thu
directUnited Airlines
2h 22mSTL-EWR
$495
12/9Thu
directAmerican Airlines
3h 08mBOS-STL
15/9Sun
multi-stopAmerican Airlines
4h 19mSTL-BOS
$568
12/9Thu
directAmerican Airlines
3h 08mBOS-STL
15/9Sun
multi-stopAmerican Airlines
4h 19mSTL-BOS
$571

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Flights to St. Louis

Destination:

St. Louis (STL)United States

Return flight deals:

St. Louis - Australia

Cabin classes: