ADL - SEA

$1,814 Find Cheap Flights from Adelaide 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 from Adelaide to Seattle departing on 17/6. 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, 0 bags

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 in flight searches from Adelaide to Seattle, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Adelaide to Seattle, as well as popular online travel agencies
Travellers love KAYAK
41,299,237 searches in the past 7 days on KAYAK

Save 15% or moreCompare multiple travel sites with one search.

Track pricesNot ready to book? Create a price alert for when prices drop.

Free to useThere are no hidden charges or fees.

Filter your dealsChoose cabin class, free Wi-Fi and more.

Everything you should know

Cheapest return fare
$1,814
Typical prices: $1,649-$1,283
Qantas Airways
Tue 21/7Wed 5/8
ADL - SEA • 2 stops
Cheapest one-way flight
$1,209
Multiple Airlines
Wed 17/6
ADL - SEA • 2 stops
Top airlines
Cheapest • from $1,808 (return)
Best reviews • 7.6 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
Direct flights
Not available
There are currently no direct flights between Adelaide and Seattle. You’ll need at least 1 connection.
Insights
Insights
Insights
Insights
When to travel
Cheapest • 100% price drop
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
+1
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!
Flight Deals
Booking Insights
Flight Deals

Cheap Flights from Adelaide to Seattle (ADL-SEA)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for return flights from Adelaide 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 from Adelaide to Seattle

Tue, 21 Jul - Wed, 5 Aug
Qantas Airways Logo
17:10 - 21:02
ADL
-
SEA
44h 22m
2 stops
Qantas Airways Logo
18:10 - 13:40
SEA
-
ADL
27h 00m
2 stops
$1,814Qantas Airways
Tue, 21 Jul - Wed, 5 Aug
United Airlines Logo
06:05 - 12:34
ADL
-
SEA
22h 59m
2 stops
United Airlines Logo
08:35 - 10:05
SEA
-
ADL
33h 00m
2 stops
$1,817United Airlines
Thu, 27 Aug - Sun, 13 Sep
Multiple Airlines Logo
12:40 - 15:45
ADL
-
SEA
43h 35m
2 stops
Multiple Airlines Logo
00:10 - 11:55
SEA
-
ADL
43h 15m
2 stops
$2,189Multiple Airlines
Fri, 17 Jul - Thu, 30 Jul
Multiple Airlines Logo
12:40 - 23:59
ADL
-
SEA
27h 49m
2 stops
Multiple Airlines Logo
08:00 - 22:35
SEA
-
ADL
22h 05m
2 stops
$2,264Multiple Airlines
Fri, 17 Jul - Thu, 30 Jul
Multiple Airlines Logo
15:00 - 23:59
ADL
-
SEA
25h 29m
2 stops
Multiple Airlines Logo
08:00 - 22:35
SEA
-
ADL
22h 05m
2 stops
$2,274Multiple Airlines
Fri, 17 Jul - Thu, 30 Jul
Multiple Airlines Logo
19:10 - 23:59
ADL
-
SEA
45h 19m
2 stops
Multiple Airlines Logo
08:00 - 22:35
SEA
-
ADL
22h 05m
2 stops
$2,278Multiple Airlines
Wed, 15 Jul - Wed, 29 Jul
Multiple Airlines Logo
19:10 - 23:59
ADL
-
SEA
45h 19m
2 stops
Multiple Airlines Logo
08:00 - 22:35
SEA
-
ADL
22h 05m
2 stops
$2,298Multiple Airlines
Thu, 18 Jun - Thu, 25 Jun
Multiple Airlines Logo
12:40 - 21:34
ADL
-
SEA
25h 24m
2 stops
Multiple Airlines Logo
21:10 - 08:10
SEA
-
ADL
42h 30m
2 stops
$2,321Multiple Airlines
Thu, 27 Aug - Mon, 14 Sep
Multiple Airlines Logo
17:35 - 08:45
ADL
-
SEA
31h 40m
1 stop
Multiple Airlines Logo
18:55 - 07:25
SEA
-
ADL
44h 00m
2 stops
$2,338Multiple Airlines
Tue, 21 Jul - Wed, 5 Aug
Multiple Airlines Logo
06:00 - 12:48
ADL
-
SEA
23h 18m
2 stops
Multiple Airlines Logo
18:10 - 13:35
SEA
-
ADL
26h 55m
3 stops
$2,456Multiple Airlines
Booking Insights

KAYAK's insights & trends for Adelaide to Seattle flights

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

How much is a return flight from Adelaide to Seattle?

This analysis is based on the cheapest return trip price found on KAYAK in the last 12 months by searching for a flight from Adelaide to Seattle departing in July.

What is the cheapest month to fly from Adelaide to Seattle?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Adelaide 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 from Adelaide to Seattle is October, where tickets cost $0 (return) on average. On the other hand, the most expensive months are December and June, where the average cost of round-trip tickets is $1,882 and $1,775 respectively.

Good to know

Low seasonNovember
Cheapest flight$1,209
Best time to beat the crowds (20% less expensive on average)
Most popular time to fly and prices are also 1% lower on average.
Flight from Adelaide to Seattle

When to book flights from Adelaide to Seattle

Are your dates flexible? Find out the best times to travel from Adelaide 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. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking flights from Adelaide to Seattle

  • What is the cheapest flight from Adelaide to Seattle?

    In the last 3 days, the lowest price for a flight from Adelaide to Seattle was $1,209 for a one-way ticket and $1,808 for a return.

  • Which airports will I be using when flying from Adelaide to Seattle?

    When flying out of Adelaide you will be using Adelaide. You will be landing at Seattle, also known as Seattle/Tacoma Intl.

  • Which aircraft models fly most regularly from Adelaide to Seattle?

    We unfortunately don’t have that data for this specific route.

  • Which airline alliances offer flights from Adelaide to Seattle?

    oneworld, and Star Alliance are the airline alliances operating flights between Adelaide and Seattle, with oneworld being the most commonly used for this route.

  • Which is the best airline for flights from Adelaide to Seattle, Virgin Australia or Qantas Airways?

    The two airlines most popular with KAYAK users for flights from Adelaide to Seattle are Virgin Australia and Qantas Airways. With an average price for the route of $1,650 and an overall rating of 7.6, Virgin Australia is the most popular choice. Qantas Airways is also a great choice for the route, with an average price of $1,607 and an overall rating of 7.5.

  • How does KAYAK find such low prices on flights from Adelaide 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 from Adelaide to Seattle.

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

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

  • What is the Hacker Fare option on flights from Adelaide to Seattle?

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

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Adelaide 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 from Adelaide up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

  • Which airlines provide the cheapest flights from Adelaide to Seattle?

    In the past 3 days, the cheapest return tickets from Adelaide to Seattle were found on Qantas Airways ($1,808) and United Airlines ($1,817).

Reviews of the top 4 airlines flying from Adelaide to Seattle

 
See real verified KAYAK customer reviews for airlines flying from Adelaide to Seattle. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Adelaide 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.
7.6
Virgin AustraliaOverall score based on 451 reviews
6.4Entertainment
7.5Comfort
7.7Boarding
6.4Food
8.2Crew
Airline reviews

There were no food or entertainment on this short flight. Friendly staff even before getting on the flight. The seats were snug but it was quick flight

10.0 ExcellentSheila, Apr 2026
SYD - MEL
Read more Virgin Australia reviews

There were no food or entertainment on this short flight. Friendly staff even before getting on the flight. The seats were snug but it was quick flight

Good flight. On time. No problems. Plane was clean. Service was as you would expect. However nothing special, just a good flight.

Very friendly staff. No food service and no entertainment. Only 1hr 20min flight

High fees for excess checked baggage and somehow ridiculous rules for carry on bags.

Flight was late, food and drink an extra charge, my carry on is five rows behind me, and the seats are too narrow. Don’t ask me to be happy about it

I bought flights in August and there wasn’t a flight in the system

Our 6.30am flight was boarded then cancelled to fly at 10.55am . We were flying to Brisbane to attend a funeral at 12 noon an hour away . This means missing the funeral due to unreliability of Virgin . Unimpressed !!

It was with Link Airways and the Saab 340 jet was noisy and little comfort.

They didn’t sent my luggage I got it 24 hours later

Plane was late and they wouldn’t check our bags through to Tokyo

I never flew with alliance. Kayak is a joke and none of the flights or times were correct. Won’t ever use kayak again

I missed my flight due to unforeseen circumstances It was, however , an excellent price !

Loved the food and beverages available, spacious economy class, excellent entertainment

Very good overall. Highly recommend for all flying to Australia

Helpful staff when I felt unwell. Qantas need to have an audio/music channel so you can listen to various music/.artists

We had bulkhead seats in a A380 in the upper deck in seats 31 D and E. Storage was very limited other than in overhead bin - which is not within reach when in seat. Yet paying same price as others in premium economy who have a lot more storage within arm’s reach. Seems very unfair.

On the Qantas flight, I could barely hear some of the announcements. It was better when I could read them on the screen.

Good check in and helpful staff. Delayed for 1 hour. Took about 45 Mins to get baggage’s at DFW . Food was average ( Hindu meal ) . Overall it was good experience

Our boarding and flight was very good. However when we landed and pulled in to the gate it took 55 minutes for the jet bridge to be positioned next to the aircraft. That caused us to miss our ground transportation and it caused us unnecessary last minute transit planning and expense. Our flight was AA1733 on March 17, 2026

We booked with Qantas instead of Delta and we instead flew on American Airlines. American is not our favorite to go on. No leg room and the width of seats are a joke. Your are packed like sardines on American flights.

O’hsre taxi and deboarding took 40 minutes. Needed 20 minutes extra time between connecting flights to avoid running through terminal.

Seats very comfortable; service efficient and pleasant; flight was on-time; boarding organized.

Seats were not super comfortable and food was not good at all. If I had a chance I would definitely fly a different airline. Of course they are better than any budget airline, but not by much.

Overall a good experience, but no wifi available for free or for purchase and we got wet from condensation or other water source during descent.

Very friendly and helpful staff on board and United was excellent when I missed my onward flight due to the delay in London. Very well organised meant much less stress

Flew steerage class. Short on leg room unless you pay more. No window unless you pay more. Etc. United is trying to squeeze every cent from you. It doesn’t make for any loyalty.

Booked through Kayak Business, had a seat in middle and towards back due to booking rate, not comfortable.

Was great in general, try to respect time and excuses when slight changes have been made, appreciated!

A long delay. Don't travel late in the day.

Super friendly with lots of drink options an entertainment. Friendly crew.

Flight itself was not bad at all. However: my checked bag (checked in Calgary) did not make it onto this flight as I found out after I landed at EWR. I still don't have it but it appears that it is on its way to me.

Flight and attendance were very good we had 2 hour delay that took the shine of it

After 3 hours of delays, they ended up cancelling my flight. And although I could purchase one-way tickets to get to my destination, they would not offer me these flights as compensation for the cancelled flight, and I didn't end up making it home until 13 hours after I was originally supposed to arrive. It made for an extremely strenuous end to an otherwise good trip.

Be careful about the bad policy and when purchasing seats

Very disappointed with premier lounge. Food selection very poor, both coffee machines out of order. For the price you charge for an upgrade, the seats don’t fully recline, movie selection is old. Not very good value. Asian airlines are light years ahead at a more affordable price.

The seat design in the premium economy section leaves virtually no room under the seat to store a bag or purse. Other than that, it was a great flight. Arrived early.

The flight was delayed, but not for weather. We landed over 3hrs later than planned.

The stag were helpful, kind and liked the passengers. The plane was pristinely clean! Great flight!

My flight was delayed more than once, but Air Canada updated us regularly. Friends on other airlines had much worse experiences.

My ticket did not exist when I got to the airport. I had to book another flight and was still charged by Kayak

Everything you need to know for your flight from Adelaide to Seattle

Information on your arrival and departure airports