$1,258 Find Cheap Flights from Adelaide to Washington – Compare and Save

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 Washington departing on 2/9. 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
1 adult, Economy, 0 bags

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Book Cheap Adelaide to Washington Plane Tickets

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

Tue, 24 Nov - Tue, 15 Dec
Air Canada Logo
06:10 - 18:22ADL  Adelaide-SEA Seattle/Tacoma Intl
30h 42m2 stops Brisbane Vancouver Intl
Air Canada Logo
15:15 - 10:55SEA  Seattle/Tacoma Intl-ADL Adelaide
25h 10m2 stops Vancouver Intl Sydney Kingsford Smith
$1,502Air Canada
Thu, 5 Nov - Mon, 9 Nov
Air Canada Logo
06:10 - 21:57ADL  Adelaide-SEA Seattle/Tacoma Intl
34h 17m2 stops Brisbane Vancouver Intl
Air Canada Logo
08:40 - 18:10SEA  Seattle/Tacoma Intl-ADL Adelaide
39h 00m2 stops Vancouver Intl Sydney Kingsford Smith
$1,550Air Canada
Tue, 24 Nov - Tue, 15 Dec
Air Canada Logo
06:10 - 14:37ADL  Adelaide-SEA Seattle/Tacoma Intl
26h 57m2 stops Brisbane Vancouver Intl
Air Canada Logo
15:15 - 18:10SEA  Seattle/Tacoma Intl-ADL Adelaide
32h 25m2 stops Vancouver Intl Sydney Kingsford Smith
$1,556Air Canada
Thu, 5 Nov - Mon, 9 Nov
Air Canada Logo
06:10 - 21:57ADL  Adelaide-SEA Seattle/Tacoma Intl
34h 17m2 stops Brisbane Vancouver Intl
Air Canada Logo
08:40 - 18:10SEA  Seattle/Tacoma Intl-ADL Adelaide
39h 00m2 stops Vancouver Intl Sydney Kingsford Smith
$1,556Air Canada
Tue, 25 Aug - Tue, 1 Sep
Multiple Airlines Logo
06:00 - 13:25ADL  Adelaide-PDX Portland
23h 55m2 stops Melbourne Los Angeles Los Angeles
Multiple Airlines Logo
17:55 - 11:55PDX  Portland-ADL Adelaide
25h 30m2 stops Los Angeles Los Angeles Sydney Kingsford Smith
$1,573Multiple Airlines
Tue, 25 Aug - Tue, 1 Sep
Qantas Airways Logo
14:00 - 23:59ADL  Adelaide-PDX Portland
26h 29m2 stops Brisbane Los Angeles Los Angeles
Qantas Airways Logo
14:53 - 09:25PDX  Portland-ADL Adelaide
26h 02m2 stops Los Angeles Los Angeles Melbourne
$1,578Qantas Airways
Tue, 25 Aug - Tue, 1 Sep
Multiple Airlines Logo
12:40 - 22:58ADL  Adelaide-PDX Portland
26h 48m3 stops Sydney Kingsford Smith Los Angeles Los Angeles Seattle/Tacoma Intl
Multiple Airlines Logo
17:55 - 11:05PDX  Portland-ADL Adelaide
24h 40m2 stops Los Angeles Los Angeles Sydney Kingsford Smith
$1,591Multiple Airlines
Thu, 27 Aug - Mon, 31 Aug
Multiple Airlines Logo
06:25 - 06:14ADL  Adelaide-PDX Portland
40h 19m2 stops Sydney Kingsford Smith Honolulu
Multiple Airlines Logo
08:00 - 08:05PDX  Portland-ADL Adelaide
31h 35m2 stops Honolulu Sydney Kingsford Smith
$1,627Multiple Airlines
Thu, 27 Aug - Mon, 31 Aug
Multiple Airlines Logo
14:25 - 06:14ADL  Adelaide-PDX Portland
32h 19m2 stops Sydney Kingsford Smith Honolulu
Multiple Airlines Logo
08:00 - 08:05PDX  Portland-ADL Adelaide
31h 35m2 stops Honolulu Sydney Kingsford Smith
$1,709Multiple Airlines
Sat, 19 Sep - Sat, 26 Sep
Air Canada Logo
18:30 - 19:11ADL  Adelaide-PDX Portland
41h 11m2 stops Sydney Kingsford Smith Vancouver Intl
Air Canada Logo
10:10 - 11:10PDX  Portland-ADL Adelaide
32h 30m2 stops Vancouver Intl Brisbane
$1,869Air Canada
Booking Insights

KAYAK's insights & trends for Adelaide to Washington flights

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

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

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Adelaide to Washington, 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 Washington is March, when tickets cost $0 (return) on average. On the other hand, the most expensive months are May and September, when the average cost of return tickets is $2,345 and $1,892 respectively.

Good to know

Low season

July

Cheapest flight

$1,258
Best time to beat the crowds (18% less expensive on average)
Most popular time to fly and prices are also 14% lower on average.
Flight from Adelaide to Seattle

FAQs - booking Washington flights

  • How does KAYAK find such low prices on flights from Adelaide to Washington?

    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 Washington.

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

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

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

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional return ticket. You could then fly from Adelaide to Washington 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 from Adelaide to Washington?

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

Reviews of the top airline flying from Adelaide to Washington

 
See real verified KAYAK customer reviews for airlines flying from Adelaide to Washington. 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 Washington? 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.
7.1
Air CanadaOverall score based on 11431 reviews
7.8Crew
7.1Comfort
7.3Boarding
6.8Entertainment
6.3Food
Airline reviews

Got denied my flight was told on Google that Air Canada was supposed to book me a flight back home because I never was able to go to my destination. They did not help me whatsoever. I had to book a whole new flight for that reason I would write this is zero

2.0 MediocreAnonymous, Mar 2026
Read more Air Canada reviews

Got denied my flight was told on Google that Air Canada was supposed to book me a flight back home because I never was able to go to my destination. They did not help me whatsoever. I had to book a whole new flight for that reason I would write this is zero

Air Canada cancelled our flight and reschedule it 26 hours later that completely interrupted my family's long waited Japan trip, it wasn't due to natural reason such as weather but under the company's control. On the day we wasted 9 hours of our time from 6am to 3pm, including a few hours in the customer counter waiting for supervisor to handle our rescheduling. When we came to the counter for rebooking help there were at least 4 employees on the counter but we were told they were not trained to handle customer rebooking, we were also told the supervisor could come 10:30 to handle our rebooking, but she showed up more than one hour later, the end result was exactly the same so the few hours we spent waiting for her was completely wasted; We already prepaid hotel and all the tickets for the our stay in Tokyo so all of the cost for the first day is completed wasted; The $80 meal voucher issues was far less than our financial loss due to the financial cancellation, and it was not surprisingly invalid (as Your company screw up everything possible along the flight), the vouchers were supposed to last 72 hours, when we tried to used it at our lounge next day less than 24 hours from its issuing at a designated restaurant, the worker there couldn't scan the vouchers after multiple tries on all 4 vouchers issued, so we had to pay the food from our own money; For the two return flights they were also full of unfortunate events that caused bad experience and further delay and waste of our time, both flights departed late and the last leg had another significant delay of more than half an hour after touchdown, the gate was for some reason not available so we waited more than half an hour, when we got out of plane it was almost one hour later than the supposed arrival time; The gate you arranged is the farthest in Vancouver airport, also was the luggage pickup location in Seattle airport; We also called customer service for rescheduling help and after a long time wait (more than an hour) we got a call back but the CS representative was equally clueless and unhelpful. Other than a fatal crash, your company couldn't do anything right and provided the worst service possible among the tons of flights we have taken in our lives.

Boarding was challenging as we had to use the stairs from the tarmac. Stairs are okay but a roller bag makes it challenging.

My one complaint was that while we boarded using the standard enclosed gangway, when we arrived at SEATAC, the ground crew were slow to hook up the stairs. After reaching the tarmac we had to walk up a long ramp all outside in 35° weather. We just came from Bali and did not have warm weather clothes. This was in addition to having to collect our bags in Vancouver, take them through security again and then having to show our passports 4 more times all within the Air Canada section.

3 hours late departure with no explanation. $160 luggage fee (two passengers) for less than 1 hour in the air!

After i biked my flights, i was informed my flight was rescheduled for later time

I wasnt able to choose my seat during booking my flight _months_ in advance and then when I checked in for my flight, I _still_ couldnt choose my seat. I was finally able to get a seat when I got to the gate, and they stuck me in a middle seat next to a jerk. This was my return flight, and on my departing flight I was able to choose my seat, so I dont understand what the issue was but it was very annoying and a miserable ~6.5 hours on the return flight.

Flight was cancelled. Still stuck at airport. Going on 2 days straight, no sleep. Never fly Air Canada

My husbands flight last night Vancouver/Sydney was 90 minutes late in leaving. My flight tonight Vancouver/Seattle was also late in departing.

Air Canada had a lot of delays on our flight going back to Seattle. So much inconvenience for a long trip.

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

Information on your arrival and departure airports