SEA

$643 Find Cheap Flights to Seattle

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight to Seattle departing on 15/10. 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
1 adult, Economy

KAYAK searches hundreds of travel sites at once for deals on flights to Seattle

 
These are the airlines KAYAK users have selected most often from within our search results for flights to Seattle
These are the airlines KAYAK users have selected most often from within our search results for flights to Seattle
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Flight Deals

Cheap Flights to Seattle

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for return flights to Seattle 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 for you by selecting your travel dates on KAYAK.

Recent return flight deals to Seattle

Fri, 10 Oct - Sun, 26 Oct
Air Canada Logo
10:20 - 09:21SYD-SEA
17h 01m1 stop
Air Canada Logo
05:50 - 08:35SEA-SYD
32h 45m1 stop
$1,127Air Canada
Find Deal
Sun, 26 Oct - Tue, 11 Nov
Air Canada Logo
10:20 - 19:16SYD-SEA
26h 56m1 stop
Air Canada Logo
10:05 - 09:35SEA-SYD
28h 30m1 stop
$1,130Air Canada
Find Deal
Fri, 24 Oct - Sun, 2 Nov
Qantas Airways Logo
10:10 - 20:07SYD-SEA
27h 57m1 stop
Qantas Airways Logo
17:30 - 09:00SEA-SYD
20h 30m1 stop
$1,225Qantas Airways
Find Deal
Sat, 18 Oct - Fri, 31 Oct
United Airlines Logo
11:55 - 14:24MEL-SEA
20h 29m1 stop
United Airlines Logo
08:36 - 09:00SEA-MEL
30h 24m2 stops
$1,249United Airlines
Find Deal
Sat, 18 Oct - Fri, 31 Oct
United Airlines Logo
11:55 - 21:15MEL-SEA
27h 20m1 stop
United Airlines Logo
15:37 - 09:00SEA-MEL
23h 23m1 stop
$1,255United Airlines
Find Deal
Sat, 18 Oct - Thu, 20 Nov
Qantas Airways Logo
10:10 - 23:01SYD-SEA
30h 51m1 stop
Qantas Airways Logo
06:05 - 09:00SEA-SYD
31h 55m1 stop
$1,315Qantas Airways
Find Deal
Fri, 5 Dec - Sat, 10 Jan
Virgin Australia Logo
13:00 - 12:18MEL-SEA
18h 18m1 stop
Virgin Australia Logo
09:25 - 10:00SEA-MEL
29h 35m1 stop
$1,652Virgin Australia
Find Deal
Sat, 18 Oct - Sat, 1 Nov
Virgin Australia Logo
11:55 - 14:24MEL-SEA
20h 29m1 stop
Virgin Australia Logo
09:25 - 09:00SEA-MEL
29h 35m1 stop
$1,655Virgin Australia
Find Deal
Thu, 29 Jan - Tue, 17 Feb
Singapore Airlines Logo
01:15 - 07:10PER-SEA
21h 55m1 stop
Singapore Airlines Logo
08:45 - 12:35SEA-PER
35h 50m1 stop
$1,775Singapore Airlines
Find Deal
Fri, 30 Jan - Tue, 17 Feb
Singapore Airlines Logo
06:40 - 07:10PER-SEA
40h 30m1 stop
Singapore Airlines Logo
08:45 - 12:35SEA-PER
35h 50m1 stop
$1,851Singapore Airlines
Find Deal

Everything you should know

When to book
4 weeks
in advance
Our data shows that travellers who book at least 4 weeks in advance save around 19% compared to booking last minute.
Insights
Insights
Insights
Insights
When to travel
August
Cheapest • 15% price drop
June
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
+1
Cheapest return fare
$1,127
Typical prices: $1,340-1803
Air Canada
Fri 10/10Sun 26/10
SYD - SEA • 1 stop
Cheapest one-way flight
$643
Typical prices: $962-1261
Multiple Airlines
Wed 15/10
SYD - SEA • 3 stops
Start a new search
KAYAK searches hundreds of sites at once to find you the best travel deals.
We hope you love your trip to Seattle!
Booking Insights

KAYAK's insights & trends for flights to Seattle

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

What is the cheapest month to fly to Seattle?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for flights to Seattle, 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 Seattle is August, where tickets cost $1,412 on average for return flights. On the other hand, the most expensive months are December and July, where the average cost of tickets from Australia is $2,054 and $2,043 respectively. For one-way flights, the best month to travel is November with an average price of $1,445.

How far in advance should I book a flight to Seattle?

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights to Seattle, removes the top 0.1% to account for outliers, and then takes the average of all the values for each week.

To get a below average price, you should book around 4 weeks before departure, which saves you about 19% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 20 weeks before departure.

Good to know – Book Cheap Seattle Plane Tickets

Low seasonJanuary
Cheapest flight$643
Best time to beat the crowds (7% less expensive on average)
Most popular time to fly and prices are also 0% lower on average.
Flight from Sydney to Seattle

When to book flights to Seattle

Are your dates flexible? Find out the best times to travel to Seattle 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 Seattle 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 Seattle flights

  • What public transport is available to get to and from the airport?

    King County Metro and Sound Transit provide bus services to a variety of destinations and traffic-free transit to and from the airport. Keep it green and ride your bike to and from the airport, with many bicycle resources available to travellers. Pick up or drop off all on your phone with app-based ride shares, all serviced at SEA Airport.

  • What is the best way to reach downtown Seattle?

    The Link Light Rail Service is the quickest and most convenient option for travellers who prefer public transport. Trains arrive every 6–15min, depending on the time and day, everyday of the week, operating from 05:00 Monday through Saturday, and from 06:00 on Sunday. The ride will take about 40min from the airport to downtown Seattle, and an adult fare costs about $ 2.25–3.25 (A$ 3.25–4.70).

  • Are VIP lounges available at Seattle Airport?

    The Club at SEA located inside Seattle Airport (in A Concourse and South Satellite), which can be accessed by all passengers who purchase a day pass. There are also several airline lounges for passengers with certain memberships or ticket types: United Club, The Centurion Studio by American Express, Alaska Lounge, Delta Sky Club, British Airways Terraces Lounge, and the USO Centre.

  • Can I stay overnight in Seattle Airport?

    Seattle Airport is open 24h and may serve some travellers as a budget sleep spot in the late or early hours. It is possible to stay Airside (past security) overnight, where more comfortable sleep spots can be found.

  • Are there any airport hotels nearby Seattle Airport?

    For uninterrupted sleep, there are many hotels near the airport accessible by shuttle bus service, for example: Hilton Seattle Airport & Conference Centre (3min drive), Red Roof Inn Seattle Airport (4min drive), Red Lion Hotel Seattle Airport (4min drive), and La Quinta Inn & Suites Seattle Sea-Tac Airport (4min drive).

  • How far is Seattle/Tacoma Intl Airport from central Seattle?

    Seattle/Tacoma Intl Airport is 18 km from the centre of Seattle.

  • What is the name of Seattle’s airport?

    There is only 1 airport in Seattle, called Seattle/Tacoma Intl Airport (SEA). It can also be referred to as Seattle-Tacoma Intl, Seattle/Tacoma, or Seattle/Tacoma Intl.

  • What is the cheapest day to fly to Seattle?

    Based on KAYAK data, the cheapest day to fly to Seattle is Tuesday where round-trip tickets can be as cheap as $1,684. On the other hand, the most expensive day to fly is Sunday, where round-trip prices are $1,942 on average.

  • How does KAYAK find such low prices on flights to Seattle?

    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 Seattle.

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Seattle 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 Seattle?

    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 Seattle 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 Seattle?

    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 Seattle up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

  • What is the cheapest time of day to fly to Seattle?

    The cheapest time of day to fly to Seattle is generally in the afternoon, when round-trip flights cost $980 on average. The most expensive time of day to fly to Seattle is generally in the evening, which is peak travel time and where the average cost of a ticket is $1,196.

Top tips for finding cheap flights to Seattle

  • Enter your preferred departure airport and travel dates into the search form above to unlock the latest Seattle flight deals.
  • Seattle-Tacoma International Airport (SEA) is the primary airport serving the Seattle and Tacoma area in Washington, in the United States. This airport is often referred to as Sea-Tac.
  • The international SEA airport is located in the Seattle-Tacoma region, approximately 23 km south of downtown Seattle and 29 km northeast of downtown Tacoma.
  • Easily accessible by road, the airport is located along State Route 99, about midway between Seattle and Tacoma. Interstate 5 and Interstate 405 also converge near the airport, so it's easily accessible by car.
  • Taxis, public buses, light rail train, shuttle buses, and ride share services make getting to and from SEA more convenient. You can even reach the airport by cycling or walking.
  • Seattle-Tacoma has two satellite terminal buildings. Inside, there are 80 gates across four concourses. The two terminal buildings, north and south, are connected to the main terminal by a Satellite Transit System (train). All international arrivals are handled in the South Satellite Terminal.
  • The airport offers paid, on-site parking in a 13.000-space car park, also notable for being North America’s largest parking structure under one roof. Find a parking space won't be a hassle.

Reviews of the top 5 airlines flying to Seattle

 
See real verified KAYAK customer reviews for airlines flying to Seattle. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline from Australia to Seattle. 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 Seattle? 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.
8.1
Singapore AirlinesOverall score based on 1367 reviews
8.2Boarding
8.0Comfort
8.6Crew
8.0Entertainment
7.7Food
Airline reviews

Lounge a access was excellent as was the attentiveness and service from the crew as always. The food and drink supplied were of good quality. The entertainment system had a good selection and I liked the mapping system supplied. However the screen wild have been bigger and the operation a little smoother to navigate. The seats were barely comfortable, but adequate.

8.0 ExcellentAnthony, Aug 2025BNE - SIN
Read more Singapore Airlines reviews

Lounge a access was excellent as was the attentiveness and service from the crew as always. The food and drink supplied were of good quality. The entertainment system had a good selection and I liked the mapping system supplied. However the screen wild have been bigger and the operation a little smoother to navigate. The seats were barely comfortable, but adequate.

The staff on the plane were attentive and friendly. The frustration with the cabin crew was that we were served second to special diet people. And, we were in economy section. The boarding staff was mediocre. Got scolded for requesting to sit with spouse on 14 hours long flight home. Was told they cannot break up families for us. Didn’t understand how we were denied sitting together as we are husband and wife. After many words of exchange, we were accommodated. Cleaning crew did a horrible job! Bathrooms were unsanitary or dirty from beginning of flight! Didn’t expect sparkling as its economy, but did except decent.

Headwind delayed our flight which wasn’t the airlines fault

Horrendous. We upgraded and they took the money but cancelled one of our tickets. The recline action didn’t work on the seats for the flight from Singapore to London, pre booked meals but they seemed to have disappeared as well.. Phone customer service was horrendous. Took 5 phone calls and no fix. Craig at the airport was the only one who seemed to be able to get the ticket back.

Construction at PDX resulting in very lung walk from the rental car to the gate. SFO, extremely long walk between terminals to get to connecting Singapore airlines flight. My smart watch recorded a total of 3 miles.

So happy I flew with Singapore Airlines. The customer service is top notch. I am terrified of flying and the staff made me feel so at ease. Will only fly Singapore internationally moving forward.

Food could have been better. Too many passengers getting up and down all the time.

Delayed 1hour due to storm still didn't get window seat for third flight despite paying £240 extra to book them

It was an average flight. I would have expected more from this airline. Food, seats, service, etc was just average. I just give them some extra points for offering free WiFi on board with just a Krisflyer account.

Check in was easy through self-check-in kiosks just like domestic flights. Staff onboard were fantastic. Some "book the cook" good options weren't great, others really good. Entertainment options a bit limited to what I've experienced on Qantas. Overall a good flight though, especially for the price.

Overall experience was good but what really impressed me the most was the care the flight attendants took of a sick passenger who was sitting in front of me. The flight attendants would come and check on her quite regularly providing her support and comfort. Brilliant service!

Only answered OK and poor as there was no entertainment and I didnt have any food

4.5 hr international flight. We got a glass of water. Ranks up there with Ryan Air, Easy Jet, Spirit and Frontier. Expected better.

Gluten free options less explicit on business class, but great service

Very good… seems the virgin staff particularly in the lounge and in flight exceeded expectations.

I liked everything about the experience but would have liked some free snacks!

Crew was great but flight was delayed almost three hours due to a technical issue and we had to go back to the terminal and wait for another one.

Being told why we delayed three hours and not even given an apology by someone. Not a word. Not my airline of choice ever.

Checked Baggage line up was long but moved quickly, rest of the process, boarding, crew was excellent

Virgin has always provided a smooth and comfortable flight. This one was no different. Seats are comfortable. Staff are great. This is my favourite airline.

My flight from Dallas to Sydney was cancelled. My entire trip was rerouted to include the following: Hartford to Washington DC Washington DC to JFK JFK to Auckland Auckland to Christchurch I paid for an aisle seat on the flight to Auckland and was asked if I would take a window seat to accommodate a family. The agent at the podium failed to mention that the family had a 3 month old baby and that a bassinet would be used during the 16 hour flight. The only way I could get out of my seat was to crawl under the bassinet of the sleeping baby. I think it is wrong that I was no given the choice to sit in another seat, that the agent knew what she was doing and chose to not properly disclose my seating arrangement. Terrible treatment.

they ran out of fruit for breakfast and so I just had a yogurt instead. other than that the flight was good

by the time they got to our row, they were out of some of the food options. games and movies were great but maybe more game options like tetris or pac man would be great

A few more inches of legroom is all i ask

Great as usual, some delays but well communicated and made up for in the air

Poor! This flight was delayed 14 hours. There was no assistance in helping customers find other routes to their destination, nor any other kind of support. It was a chaotic experience. I'm not likely to fly with AA going forward.

Business class points redemption - good value for points paid, dubious value if out of your own pocket, domestic class business product okay for this length of flight. The flight left and arrived on time, crew were good, aircraft was a bit old and tired, but still miles ahead of their competitors in Virgin and Jetstar.

Airline running better than post Covid, proper boarding process now implemented, some aircraft feeling a bit old and tired, crew fine, online experience better.

We were upgraded and after just a short delay in attending to a safety check we were on our way. Would definately fly Qantas International on their Dreamliner again.

Five hour flight instead of four hours due to westerly headwinds which wasn’t the fault of Qantas !

Terrible. They wouldn't allow me on my flight on the 14th..

The newer screen was super cool and had the option to watch many different shows or movies. Crew was polite and helpful. However again, many children screaming bloody murder and kicking my seat, and parents doing nothing about it as usual.

Flight was good and crew was super polite. However, there were around 5 kids screaming the WHOLE 2 hours. I understand kids have to come but parents need to do something to control their children. They make the experience terrible, especially after finishing 16 hour shifts at the hospital I needed some sleep, which I did not get.

IAD with the archaic people movers is just a place to be avoided.

Overall, it was good. I was seating next to a wonderful lady and did not notice how time flew. Thanks

All of the United employees I interacted with were professional and courteous. The aircraft was clean, the food on the flight was good. No complaints here.

Armrest controller on my seat 35D and nextbooennseat 35E did not work right. Hard to press buttons to recognize and 35D had constantnpressure either upmost down somit was nearly impossible to make selections. .

I flew with my dog and had already purchased my dog’s ticket. Even that morning I had called costumer service to insure that my husband and I had seats together since the website was giving me an error when choosing our seats and the representative mentioned our dog. I showed up early to the airport and when I got to the gate and we started boarding I was help back and told that I was supposed to have a yellow tag and that I should have checked in at the counter for them to give me that tag. I was not aware of this, the representative on the phone did not say anything. Nor did I see it anywhere in the checking process online, so if you travel with a pet and are not checking in luggage, just know that you still have to go to the check in counter when arriving at the airport unless you want to be the last one to board and not have room for your carry on in the overhead bins. Other than that, I had a great experience.

Once we got in the air the pilot made up some of the time of the delay. So that was really nice.

My flight was delayed about 1 1/2 hours in Chicago, but other then that it was a good flight.

A sandwich and a drink would have been better thank a snack bar...

I liked the behaviour of the crew members.The flight was good.

1 hour late No hot drinks No restroom in the back of the plane

I swear airplane seats keep getting smaller and smaller but everything else was great. Smooth sailing and we got in early.

No food to provide, they forgot that, in some cases, people stay at the airport for hours without food. Now, to provide them with food, they have to ask them to pay, because some don't have money. That way, they can't eat.

After a long flight from Tokyo, our connecting flight home was canceled due to “maintenance” while we were on our layover in Toronto. Very frustrating to close out our honeymoon, although I’m sure others had it even worse during last week’s strike. Air Canada staff at Pearson Airport are the one thing that kept me remotely at peace during this — they were very helpful and deserve a lot of props. But I would not fly Air Canada again.

I had wonderful wheelchair assistance through the Montreal airport onto the flight. Air Canada was excellent in this both at the Fredericton airport and the Montreal one where an attendant helped us through customs as well as transport and baggage security.

Horrible flight cancelled had to buy another very expensive ticket

Flight was cancelled last minute due to Air Canada strike leaving us stranded and having to stressfully find a way home that cost hundreds of dollars in excess cost added to the trip. Having just experienced our mother's funeral service, this was not a good way to end our trip.

Air Canada marooned me in Canada with no way back home during my summer vacation. I had to buy a last minute flight ticket for over $500 to make it back home. I have their credit card and have flown them for years. Never again.

Travelling to a place near Seattle?

Book flights to Seattle if you plan to visit one of these locations
SeaTac
Redmond
Tacoma
Lynnwood
Renton
Leavenworth
Olympia
Ocean Shores
Tukwila
Aberdeen
Ashford
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Cle Elum
Marysville
Ellensburg

Everything you need to know for your flight to Seattle

Flights with popular airlines flying to Seattle

Flights from the other most popular airlines that fly from Australia to Seattle according to KAYAK users. Prices are the lowest found on KAYAK over the last 7 days. Price and availability are not guaranteed.

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