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Cheap flights from Adelaide to Washington from $1,120

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 16/6. Fares are subject to change and may not be available on all flights or dates of travel.
ADL — SEA
12 Jun — 19 Jun1
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 13 May 2026.

Tue 21/714:25
ADL
-
SEA
2 stops47h 07m
Qantas Airways
Wed 5/818:10
SEA
-
ADL
2 stops24h 25m
Qantas Airways
Deal found 9/5$1,747
Sat 6/606:25
ADL
-
PDX
2 stops32h 58m
Multiple Airlines
Sat 13/606:37
PDX
-
ADL
2 stops32h 53m
Multiple Airlines
Deal found 9/5$1,873
Sat 16/506:00
ADL
-
SEA
2 stops29h 02m
Virgin Australia
Tue 16/617:20
SEA
-
ADL
2 stops25h 15m
Virgin Australia
Deal found 11/5$1,873
Sat 6/606:00
ADL
-
PDX
2 stops31h 24m
United Airlines
Sat 13/605:15
PDX
-
ADL
3 stops37h 10m
United Airlines
Deal found 9/5$2,043
Thu 16/709:10
ADL
-
SEA
1 stop40h 05m
Multiple Airlines
Thu 20/807:15
SEA
-
ADL
2 stops31h 40m
Multiple Airlines
Deal found 8/5$2,107
Wed 15/719:35
ADL
-
SEA
2 stops60h 40m
Multiple Airlines
Tue 28/700:10
SEA
-
ADL
2 stops39h 30m
Multiple Airlines
Deal found 11/5$2,158
Thu 23/717:35
ADL
-
SEA
1 stop31h 40m
Singapore Airlines
Tue 29/910:15
SEA
-
ADL
1 stop28h 40m
Singapore Airlines
Deal found 8/5$2,176
Thu 12/1117:10
ADL
-
SEA
2 stops22h 05m
Multiple Airlines
Mon 16/1107:00
SEA
-
ADL
2 stops33h 25m
Multiple Airlines
Deal found 8/5$2,270
Thu 16/709:10
ADL
-
SEA
1 stop40h 05m
Singapore Airlines
Thu 20/810:15
SEA
-
ADL
1 stop37h 35m
Singapore Airlines
Deal found 8/5$2,282
Fri 17/712:40
ADL
-
SEA
2 stops25h 24m
Multiple Airlines
Thu 30/708:00
SEA
-
ADL
2 stops22h 05m
Multiple Airlines
Deal found 8/5$2,303
Sat 6/609:30
ADL
-
PDX
2 stops29h 27m
American Airlines
Sat 13/615:30
PDX
-
ADL
3 stops27h 05m
American Airlines
Deal found 9/5$2,390
Sat 6/614:30
ADL
-
PDX
3 stops63h 10m
Qatar Airways
Sat 13/607:00
PDX
-
ADL
3 stops69h 40m
Qatar Airways
Deal found 9/5$3,955

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 13 May 2026.

Round-trip from

$1,747

One-way from

$1,120

Popular in

December

Cheapest in

November

Average price

$1,552
Qantas Airways
  • Qantas Airways
  • 21/7-5/8
  • 4 total stops
  • 71h 32m total
  • Adelaide to Washington
Search Deals
16/6
  • 16/6
  • 3 total stops
  • 49h 41m total
  • Adelaide to Washington
Search Deals
High demand for flights, 3% potential price rise
Search Deals
Cheapest flight prices on average. 1% potential price decrease ($30 potential savings vs. average return price).
Search Deals
Average for round-trip flights in May 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 13 May 2026.
Use the filters below to find and compare flights from Adelaide to Washington that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

AdelaidePortland

ADL - PDX

ADLPDX

Adelaide

Sat 6/6

06:25-22:53

2 stops32h 58m

Portland

Sat 13/6

06:37-08:00

2 stops32h 53m

$1,873

AdelaidePortland

ADL - PDX

ADLPDX

Adelaide

Sat 6/6

06:00-20:54

2 stops31h 24m

Portland

Sat 13/6

05:15-10:55

3 stops37h 10m

$2,043

AdelaideSeattle

ADL - SEA

ADLSEA

Adelaide

Wed 15/7

19:35-15:45

2 stops60h 40m

Seattle/Tacoma Intl

Tue 28/7

00:10-19:40

3 stops51h 00m

$2,253

AdelaidePortland

ADL - PDX

ADLPDX

Adelaide

Wed 10/6

18:30-09:30

3 stops31h 30m

Portland

Tue 16/6

19:45-13:55

2 stops25h 40m

$2,329

AdelaidePortland

ADL - PDX

ADLPDX

Adelaide

Wed 10/6

17:35-22:27

2 stops45h 22m

Portland

Tue 16/6

15:27-11:05

2 stops27h 08m

$2,360

AdelaideSeattle

ADL - SEA

ADLSEA

Adelaide

Tue 21/7

06:00-13:48

2 stops24h 18m

Seattle/Tacoma Intl

Wed 5/8

18:10-13:35

3 stops26h 55m

$2,465

AdelaideSeattle

ADL - SEA

ADLSEA

Adelaide

Wed 10/6

19:10-05:59

2 stops51h 19m

Seattle/Tacoma Intl

Tue 16/6

18:25-11:05

2 stops48h 10m

$2,483

AdelaideSeattle

ADL - SEA

ADLSEA

Adelaide

Fri 17/7

17:35-08:45

1 stop31h 40m

Seattle/Tacoma Intl

Thu 30/7

07:20-07:25

2 stops31h 35m

$2,761

AdelaideSeattle

ADL - SEA

ADLSEA

Adelaide

Tue 30/6

20:00-21:10

3 stops41h 40m

Seattle/Tacoma Intl

Tue 11/8

09:00-11:05

2 stops33h 35m

$2,913
Fastest return journey

AdelaideSeattle

ADL - SEA

ADLSEA

Adelaide

Tue 30/6

14:25-21:58

3 stops24h 03m

Seattle/Tacoma Intl

Tue 11/8

15:55-09:25

3 stops25h 00m

$3,039

Flights are sorted by cheapest return flights first.

Deals found on 10/5

Showing 1-10 of 27 resultsSorted by cheapest first
1
2
3

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

How much does it cost for a return flight from Adelaide to State of Washington?

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 13 May 2026.
Read reviews from past customers who have flown with Virgin Australia,Qantas Airways, andUnited Airlines from Adelaide to Washington. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Virgin Australia
7.6
Good
451 reviews
Check prices

Food

6.4

Boarding

7.7

Comfort

7.5

Crew

8.2

Overall

7.6

Entertainment

6.4

Reviews

1 / 20
8.0
Excellent

Elio,Jan 2026

MEL - ADL

Starting to be as efficient as qantas… bar the food offerings Virgin is up there now
Virgin Australia
7.6
Good
451 reviews
Virgin Australia
7.6
Good
451 reviews
Check prices

Food

6.4

Boarding

7.7

Comfort

7.5

Crew

8.2

Overall

7.6

Entertainment

6.4

Reviews

1 / 20
8.0
Excellent

Elio,Jan 2026

MEL - ADL

Starting to be as efficient as qantas… bar the food offerings Virgin is up there now
Qantas Airways
7.5
Good
1,037 reviews
Virgin Australia
7.6
Good
451 reviews
Check prices

Food

6.4

Boarding

7.7

Comfort

7.5

Crew

8.2

Overall

7.6

Entertainment

6.4

Reviews

1 / 20
8.0
Excellent

Elio,Jan 2026

MEL - ADL

Starting to be as efficient as qantas… bar the food offerings Virgin is up there now
United Airlines
7.4
Good
9,709 reviews
Virgin Australia
7.6
Good
451 reviews
Check prices

Food

6.4

Boarding

7.7

Comfort

7.5

Crew

8.2

Overall

7.6

Entertainment

6.4

Reviews

1 / 20
8.0
Excellent

Elio,Jan 2026

MEL - ADL

Starting to be as efficient as qantas… bar the food offerings Virgin is up there now
Air Canada
7.1
Good
11,028 reviews
Virgin Australia
7.6
Good
451 reviews
Check prices

Food

6.4

Boarding

7.7

Comfort

7.5

Crew

8.2

Overall

7.6

Entertainment

6.4

Reviews

1 / 20
8.0
Excellent

Elio,Jan 2026

MEL - ADL

Starting to be as efficient as qantas… bar the food offerings Virgin is up there now

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 $2,043, United Airlines can have you in State of Washington from Adelaide in 31h 24m. The distance from Adelaide to State of Washington is about 13317 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

Browse thousands of different options on Cheapflights for your next trip

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Top 4 airlines flying from Adelaide to Washington

Discover the top 4 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 13 May 2026.
AirlineCheapestAverageFlexibilityOn-time
Air CanadaCheapest$1,152Average$1,432FlexibilityNo cancel feeOn-time67%
Search Air Canada flights
Qantas AirwaysCheapest$1,153Average$1,595FlexibilityNo cancel feeOn-time74%
Search Qantas Airways flights
United AirlinesCheapest$1,457Average$1,658FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
Virgin AustraliaCheapest$1,496Average$1,661FlexibilityNo cancel feeOn-time80%
Search Virgin Australia 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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