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Cheap flights from Adelaide to Washington from $797

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 15/3. Fares are subject to change and may not be available on all flights or dates of travel.
ADL — SEA
4 Mar — 11 Mar1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Adelaide to Washington

Enter your travel dates to find the best prices.

Cheapest flights from Adelaide to Washington
Explore the most affordable flight options available from Adelaide to Washington. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 2 February 2026.

Tue 17/316:10
ADL
-
SEA
2 stops22h 18m
Qantas Airways
Tue 24/317:59
SEA
-
ADL
2 stops26h 11m
Qantas Airways
Deal found 31/1$1,437
Thu 19/316:10
ADL
-
SEA
2 stops22h 02m
Multiple Airlines
Thu 26/319:24
SEA
-
ADL
2 stops24h 46m
Multiple Airlines
Deal found 2/2$1,553
Tue 21/713:20
ADL
-
SEA
2 stops26h 05m
American Airlines
Wed 5/814:32
SEA
-
ADL
2 stops26h 23m
American Airlines
Deal found 2/2$1,616
Wed 4/207:50
ADL
-
PDX
2 stops25h 28m
American Airlines
Sun 8/218:22
PDX
-
ADL
2 stops24h 48m
American Airlines
Deal found 30/1$1,665
Fri 17/713:20
ADL
-
SEA
2 stops26h 05m
American Airlines
Thu 30/714:32
SEA
-
ADL
2 stops26h 23m
American Airlines
Deal found 2/2$1,699
Thu 16/717:35
ADL
-
SEA
1 stop31h 40m
Multiple Airlines
Mon 28/921:40
SEA
-
ADL
2 stops41h 15m
Multiple Airlines
Deal found 31/1$1,712
Thu 19/318:35
ADL
-
SEA
1 stop31h 05m
Singapore Airlines
Thu 26/309:45
SEA
-
ADL
1 stop38h 05m
Singapore Airlines
Deal found 2/2$1,753
Thu 19/307:50
ADL
-
PDX
2 stops31h 32m
Qantas Airways
Thu 26/317:38
PDX
-
ADL
2 stops31h 07m
Qantas Airways
Deal found 2/2$1,757
Thu 19/308:30
ADL
-
PDX
2 stops32h 04m
Virgin Australia
Thu 26/313:39
PDX
-
ADL
1 stop26h 11m
Virgin Australia
Deal found 2/2$1,834
Thu 19/306:10
ADL
-
SEA
2 stops27h 34m
Virgin Australia
Thu 26/319:34
SEA
-
ADL
1 stop20h 16m
Virgin Australia
Deal found 2/2$1,834
Tue 17/306:35
ADL
-
SEA
3 stops27h 09m
Air New Zealand
Tue 24/310:10
SEA
-
ADL
2 stops31h 15m
Air New Zealand
Deal found 31/1$1,889
Tue 21/706:05
ADL
-
SEA
2 stops24h 33m
United Airlines
Wed 5/815:31
SEA
-
ADL
2 stops27h 04m
United Airlines
Deal found 1/2$1,918

Find flight deals from Adelaide to Washington

Keep the following information in mind while searching for Adelaide to Washington flight deals. Data was last updated 2 February 2026.

Round-trip from

$1,437

One-way from

$797

Popular in

April

Cheapest in

November

Average price

$1,586
Qantas Airways
  • Qantas Airways
  • 17/3-24/3
  • 4 total stops
  • 48h 29m total
  • Adelaide to Washington
Search Deals
15/3
  • 15/3
  • 3 total stops
  • 44h 02m total
  • Adelaide to Washington
Search Deals
Highest demand for flights based on searches. 10% potential increase in price ($288 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($84 potential savings vs. average return price).
Search Deals
Average for round-trip flights in February 2026
Search Deals

Cheapflights Fare Finder

 
Customise your flight search to find flights from Adelaide to Washington that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 647,157 searches. Data last updated 2 February 2026.
Use the filters below to find and compare flights from Adelaide to Washington that are best for you.

Fly from

Adelaide

Fly to

Washington

Route

Depart

Return

Price

AdelaideSeattle

ADL - SEA

ADLSEA

Adelaide

Tue 17/3

16:10-20:58

2 stops22h 18m

Seattle/Tacoma Intl

Tue 24/3

17:59-13:40

2 stops26h 11m

$1,437

AdelaideSeattle

ADL - SEA

ADLSEA

Adelaide

Thu 19/3

16:10-20:42

2 stops22h 02m

Seattle/Tacoma Intl

Thu 26/3

19:24-13:40

2 stops24h 46m

$1,553

AdelaideSeattle

ADL - SEA

ADLSEA

Adelaide

Tue 21/7

13:20-22:55

2 stops26h 05m

Seattle/Tacoma Intl

Wed 5/8

14:32-09:25

2 stops26h 23m

$1,616

AdelaideSeattle

ADL - SEA

ADLSEA

Adelaide

Fri 17/7

13:20-22:55

2 stops26h 05m

Seattle/Tacoma Intl

Thu 30/7

14:32-09:25

2 stops26h 23m

$1,699

AdelaideSeattle

ADL - SEA

ADLSEA

Adelaide

Thu 16/7

17:35-08:45

1 stop31h 40m

Seattle/Tacoma Intl

Mon 28/9

21:40-07:25

2 stops41h 15m

$1,712

AdelaideSeattle

ADL - SEA

ADLSEA

Adelaide

Thu 19/3

18:35-08:10

1 stop31h 05m

Seattle/Tacoma Intl

Thu 26/3

09:45-17:20

1 stop38h 05m

$1,753

AdelaidePortland

ADL - PDX

ADLPDX

Adelaide

Thu 19/3

07:50-21:52

2 stops31h 32m

Portland

Thu 26/3

17:38-18:15

2 stops31h 07m

$1,757

AdelaidePortland

ADL - PDX

ADLPDX

Adelaide

Thu 19/3

08:30-23:04

2 stops32h 04m

Portland

Thu 26/3

13:39-09:20

1 stop26h 11m

$1,834

AdelaideSeattle

ADL - SEA

ADLSEA

Adelaide

Tue 17/3

06:35-16:14

3 stops27h 09m

Seattle/Tacoma Intl

Tue 24/3

10:10-10:55

2 stops31h 15m

$1,889

AdelaideSeattle

ADL - SEA

ADLSEA

Adelaide

Tue 21/7

06:05-14:08

2 stops24h 33m

Seattle/Tacoma Intl

Wed 5/8

15:31-11:05

2 stops27h 04m

$1,918

Flights are sorted by cheapest return flights first.

Deals found on 30/1

Showing 1-10 of 19 results
1
2

Best time to book a flight from Adelaide to Washington

Have a flexible travel schedule? Discover the best time to fly to Washington from Adelaide with our price prediction graph.
Estimated return price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Adelaide to Washington
No data available for this route at this time. Please check back soon.

Reviews of airlines servicing Washington

Get insights into the airlines that provide service to Washington. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Washington. Reviews last updated 2 February 2026.
Read reviews from past customers who have flown with Air New Zealand, Virgin Australia, andQantas Airways from Adelaide to Washington. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Air New Zealand
8.0
Very Good
578 reviews
Check prices

Boarding

8.2

Overall

8.0

Comfort

8.0

Crew

8.5

Entertainment

7.4

Food

7.4

Reviews

1 / 20
8.0
Excellent

David,Jan 2026

AKL - IAH

Couple of spare seats on this flight so people could spread a little. Much better than a full plane
Air New Zealand
8.0
Very Good
578 reviews
Air New Zealand
8.0
Very Good
578 reviews
Check prices

Boarding

8.2

Overall

8.0

Comfort

8.0

Crew

8.5

Entertainment

7.4

Food

7.4

Reviews

1 / 20
8.0
Excellent

David,Jan 2026

AKL - IAH

Couple of spare seats on this flight so people could spread a little. Much better than a full plane
Virgin Australia
7.6
Good
433 reviews
Air New Zealand
8.0
Very Good
578 reviews
Check prices

Boarding

8.2

Overall

8.0

Comfort

8.0

Crew

8.5

Entertainment

7.4

Food

7.4

Reviews

1 / 20
8.0
Excellent

David,Jan 2026

AKL - IAH

Couple of spare seats on this flight so people could spread a little. Much better than a full plane
Qantas Airways
7.5
Good
984 reviews
Air New Zealand
8.0
Very Good
578 reviews
Check prices

Boarding

8.2

Overall

8.0

Comfort

8.0

Crew

8.5

Entertainment

7.4

Food

7.4

Reviews

1 / 20
8.0
Excellent

David,Jan 2026

AKL - IAH

Couple of spare seats on this flight so people could spread a little. Much better than a full plane
United Airlines
7.4
Good
9,231 reviews
Air New Zealand
8.0
Very Good
578 reviews
Check prices

Boarding

8.2

Overall

8.0

Comfort

8.0

Crew

8.5

Entertainment

7.4

Food

7.4

Reviews

1 / 20
8.0
Excellent

David,Jan 2026

AKL - IAH

Couple of spare seats on this flight so people could spread a little. Much better than a full plane
Air Canada
7.1
Good
10,676 reviews
Air New Zealand
8.0
Very Good
578 reviews
Check prices

Boarding

8.2

Overall

8.0

Comfort

8.0

Crew

8.5

Entertainment

7.4

Food

7.4

Reviews

1 / 20
8.0
Excellent

David,Jan 2026

AKL - IAH

Couple of spare seats on this flight so people could spread a little. Much better than a full plane

Related info for your journey

Find useful and relevant information for your journey from Adelaide to Washington. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly from for flights from Adelaide to Washington?

    Most people fly from Adelaide (ADL) if they book a flight from Adelaide to Washington. Adelaide is conveniently located just 6.6 km from Adelaide’s city centre.

  • How long is the flight from Adelaide to State of Washington?

    For as low as $1,437, Qantas Airways can have you in State of Washington from Adelaide in 22h 18m. The distance from Adelaide to State of Washington is about 13409 km. When browsing for deals, the options you’ll see will be for both direct flights and flights with stops.

  • Can I find deals for flights from Adelaide to Washington that include hotel bookings?

    Yes. In addition to deals on Adelaide to Washington flights, Cheapflights offers holiday packages that include both flights and hotel.

  • How can I find direct flights from Adelaide to Washington?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Adelaide to Washington.

  • Can I find deals for business class flights from Adelaide to Washington?

    Yes. Cheapflights offers flight deals from Adelaide to Washington by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

See more FAQs

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Alternative routes for Adelaide to Washington

See prices for flight routes from nearby airports that may be better suited for you.
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Top 5 airlines flying from Adelaide to Washington

Discover the top 5 airlines that operate flights from Adelaide to Washington. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 647,157 searches. Data last updated 2 February 2026.
AirlineCheapestAverageFlexibilityOn-time
Air New ZealandCheapest$880Average$1,455FlexibilityNo cancel feeOn-time78%
Search Air New Zealand flights
Qantas AirwaysCheapest$1,286Average$1,702FlexibilityNo cancel feeOn-time74%
Search Qantas Airways flights
Air CanadaCheapest$1,383Average$1,530FlexibilityNo cancel feeOn-time67%
Search Air Canada flights
Virgin AustraliaCheapest$1,624Average$1,814FlexibilityNo cancel feeOn-time80%
Search Virgin Australia flights
United AirlinesCheapest$1,635Average$1,908FlexibilityNo cancel feeOn-time69%
Search United Airlines flights

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travellers can enjoy low prices and a wide availability of flights to their desired destinations.

How does Cheapflights help users find flights from Adelaide to Washington?

900+ travel sites are searched through when a user searches for a flight using Cheapflights. From the search interface, users can use filters to choose airlines, airports, flight times, cabin classes and more to their preference. Book your flight to Washington from Adelaide today with Cheapflights!

Why should you use Cheapflights to find cheap flight tickets from Adelaide to Washington?

It’s simple! Cheapflights, which is free to use for everyone, saves millions of users time and money every year by helping them find the cheapest and most suitable flights from Adelaide to Washington.

Can Cheapflights find flights from Adelaide to Washington with no change fees?

Certainly. Search results for flights to Washington from Adelaide shown to you on Cheapflights can be narrowed down with different useful search filters, which includes flexible booking options.

Can Cheapflights notify me if prices for flights from Adelaide to Washington become cheaper?

Yes! Start tracking prices for Adelaide to Washington flights today and get alerted whenever prices for these flights change. To access this feature, click the bell icon next to the flight deals above, which will prompt you for a valid email address to receive your alerts.

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