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Cheap flights from Adelaide to Washington from $1,692

This is the cheapest retur flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 10/6. Fares are subject to change and may not be available on all flights or dates of travel.
ADL — SEA
1 Apr — 8 Apr1
1 adult

Cheap flight deals from Adelaide to Washington

Keep the following information in mind while searching for Adelaide to Washington flight deals. Data was last updated 27 March 2025.

Round-trip from

$1,692

Popular in

December

Cheapest in

November

Average price

$1,897
Qantas Airways
  • Qantas Airways
  • 10/6-17/6
  • 4 total stops
  • 57h 24m total
  • Adelaide to Washington
Search Deals
Highest demand for flights based on searches. 10% potential increase in price ($371 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($111 potential savings vs. average return price).
Search Deals
Average for round-trip flights in March 2025
Search Deals

Find flight deals from Adelaide to Washington

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 27 March 2025.

Tue 10/606:30ADL - SEA
2 stops31h 34mQantas Airways
Tue 17/617:15SEA - ADL
2 stops25h 50mQantas Airways
Deal found 26/3$1,692
Thu 1/512:00ADL - PDX
2 stops26h 51mMultiple Airlines
Tue 6/506:00PDX - ADL
2 stops35h 55mMultiple Airlines
Deal found 26/3$1,711
Thu 4/1210:30ADL - SEA
1 stop39h 10mSingapore Airlines
Sat 3/108:45SEA - ADL
1 stop53h 50mSingapore Airlines
Deal found 27/3$1,947
Thu 4/1211:40ADL - SEA
2 stops38h 00mMultiple Airlines
Sat 3/108:45SEA - ADL
1 stop38h 05mMultiple Airlines
Deal found 27/3$2,260
Thu 4/1207:55ADL - SEA
3 stops29h 00mAir New Zealand
Sat 3/115:05SEA - ADL
2 stops25h 15mAir New Zealand
Deal found 27/3$2,391
Tue 10/621:40ADL - SEA
2 stops37h 46mQatar Airways
Tue 17/616:30SEA - ADL
1 stop30h 50mQatar Airways
Deal found 26/3$2,498
Mon 16/620:00ADL - SEA
3 stops41h 38mUnited Airlines
Fri 25/714:50SEA - ADL
2 stops27h 50mUnited Airlines
Deal found 27/3$2,556
Fri 18/421:50ADL - SEA
2 stops33h 17mVirgin Australia
Sun 20/419:33SEA - ADL
2 stops25h 07mVirgin Australia
Deal found 26/3$2,978
Thu 1/511:40ADL - PDX
3 stops45h 38mQatar Airways
Tue 6/509:35PDX - ADL
3 stops52h 35mQatar Airways
Deal found 27/3$3,270

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 27 March 2025.
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 10/6

06:30-21:34

2 stops31h 34m

Seattle/Tacoma Intl

Tue 17/6

17:15-11:35

2 stops25h 50m

$1,692

AdelaidePortland

ADL - PDX

ADLPDX

Adelaide

Thu 1/5

12:00-22:21

2 stops26h 51m

Portland

Tue 6/5

06:00-10:25

2 stops35h 55m

$1,711

AdelaideSeattle

ADL - SEA

ADLSEA

Adelaide

Fri 25/7

17:35-08:45

1 stop31h 40m

Seattle/Tacoma Intl

Fri 15/8

10:15-16:20

1 stop37h 35m

$2,030

AdelaideSeattle

ADL - SEA

ADLSEA

Adelaide

Thu 22/5

17:15-09:18

2 stops32h 33m

Seattle/Tacoma Intl

Thu 5/6

19:15-11:20

2 stops23h 35m

$2,269

AdelaideSeattle

ADL - SEA

ADLSEA

Adelaide

Tue 10/6

21:40-18:56

2 stops37h 46m

Seattle/Tacoma Intl

Tue 17/6

16:30-15:50

1 stop30h 50m

$2,498

AdelaideSeattle

ADL - SEA

ADLSEA

Adelaide

Mon 16/6

20:00-21:08

3 stops41h 38m

Seattle/Tacoma Intl

Fri 25/7

14:50-11:10

2 stops27h 50m

$2,556

AdelaideSeattle

ADL - SEA

ADLSEA

Adelaide

Tue 10/6

08:00-21:58

3 stops30h 28m

Seattle/Tacoma Intl

Tue 17/6

17:14-12:05

3 stops26h 21m

$2,651

AdelaideSeattle

ADL - SEA

ADLSEA

Adelaide

Fri 18/4

20:50-11:49

2 stops31h 29m

Seattle/Tacoma Intl

Mon 21/4

17:05-11:05

2 stops25h 30m

$2,978

AdelaidePortland

ADL - PDX

ADLPDX

Adelaide

Thu 1/5

11:40-16:48

3 stops45h 38m

Portland

Tue 6/5

09:35-06:40

3 stops52h 35m

$3,270

Flights are sorted by cheapest return flights first.

Deals found on 26/3

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

What is the cheapest month to book a flight from Adelaide to State of Washington?

Currently, March is the cheapest month in which you can book a flight from Adelaide to State of Washington (average of $875). Flying from Adelaide to State of Washington in December is currently the most expensive (average of $1,482). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from ADL to WA?

Find hourly flight availability from Adelaide to Washington. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 27 March 2025.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Adelaide to State of Washington as you normally would.

Rainfall in Washington by month

Plan your trip to Washington by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in State of Washington ranges from 18.0 - 168.0 inches per month. November is typically the wettest month, when rainfall can reach 168.0 mm. July is typically the driest time to visit State of Washington when rainfall is around 18.0 mm.

Temperature in Washington by month

Plan your trip to Washington by taking into account the average temperature totals by month.

If weather is an important factor for your trip to State of Washington, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 19.0 C. Travellers hoping to avoid the cold should look outside of December, when temperatures are typically at their lowest (around 5.0 C).

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 27 March 2025.
Singapore Airlines
8.1
Very Good
1,285 reviews
Check prices

Food

7.7

Entertainment

8.0

Boarding

8.2

Comfort

7.9

Crew

8.6

Overall

8.1

Reviews

1 / 20
8.0
Excellent

Anonymous,Dec 2024

NRT - LAX

Crew and in flight experience were great! I felt safe in the plane. Only downside was sitting in economy and the seat/person in front of me who had their seat reclined most of the flight (9 hrs) which made it difficult to eat or be fully comfortable.
Singapore Airlines
8.1
Very Good
1,285 reviews
Singapore Airlines
8.1
Very Good
1,285 reviews
Check prices

Food

7.7

Entertainment

8.0

Boarding

8.2

Comfort

7.9

Crew

8.6

Overall

8.1

Reviews

1 / 20
8.0
Excellent

Anonymous,Dec 2024

NRT - LAX

Crew and in flight experience were great! I felt safe in the plane. Only downside was sitting in economy and the seat/person in front of me who had their seat reclined most of the flight (9 hrs) which made it difficult to eat or be fully comfortable.
Air New Zealand
7.9
Good
456 reviews
Singapore Airlines
8.1
Very Good
1,285 reviews
Check prices

Food

7.7

Entertainment

8.0

Boarding

8.2

Comfort

7.9

Crew

8.6

Overall

8.1

Reviews

1 / 20
8.0
Excellent

Anonymous,Dec 2024

NRT - LAX

Crew and in flight experience were great! I felt safe in the plane. Only downside was sitting in economy and the seat/person in front of me who had their seat reclined most of the flight (9 hrs) which made it difficult to eat or be fully comfortable.
Qantas Airways
7.5
Good
811 reviews
Singapore Airlines
8.1
Very Good
1,285 reviews
Check prices

Food

7.7

Entertainment

8.0

Boarding

8.2

Comfort

7.9

Crew

8.6

Overall

8.1

Reviews

1 / 20
8.0
Excellent

Anonymous,Dec 2024

NRT - LAX

Crew and in flight experience were great! I felt safe in the plane. Only downside was sitting in economy and the seat/person in front of me who had their seat reclined most of the flight (9 hrs) which made it difficult to eat or be fully comfortable.
Virgin Australia
7.5
Good
395 reviews
Singapore Airlines
8.1
Very Good
1,285 reviews
Check prices

Food

7.7

Entertainment

8.0

Boarding

8.2

Comfort

7.9

Crew

8.6

Overall

8.1

Reviews

1 / 20
8.0
Excellent

Anonymous,Dec 2024

NRT - LAX

Crew and in flight experience were great! I felt safe in the plane. Only downside was sitting in economy and the seat/person in front of me who had their seat reclined most of the flight (9 hrs) which made it difficult to eat or be fully comfortable.
Qatar Airways
7.4
Good
3,538 reviews
Singapore Airlines
8.1
Very Good
1,285 reviews
Check prices

Food

7.7

Entertainment

8.0

Boarding

8.2

Comfort

7.9

Crew

8.6

Overall

8.1

Reviews

1 / 20
8.0
Excellent

Anonymous,Dec 2024

NRT - LAX

Crew and in flight experience were great! I felt safe in the plane. Only downside was sitting in economy and the seat/person in front of me who had their seat reclined most of the flight (9 hrs) which made it difficult to eat or be fully comfortable.

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.

  • 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.

  • What is the cheapest month to book a flight from Adelaide to State of Washington?

    Currently, March is the cheapest month in which you can book a flight from Adelaide to State of Washington (average of $875). Flying from Adelaide to State of Washington in December is currently the most expensive (average of $1,482). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

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 7 airlines flying from Adelaide to Washington

Discover the top 7 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 27 March 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$1,001Average$1,850FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
Virgin AustraliaCheapest$1,042Average$2,338FlexibilityNo cancel feeOn-time80%
Search Virgin Australia flights
Qantas AirwaysCheapest$1,412Average$2,197FlexibilityNo cancel feeOn-time74%
Search Qantas Airways flights
Singapore AirlinesCheapest$1,513Average$1,763FlexibilityNo cancel feeOn-time81%
Search Singapore Airlines flights
Air CanadaCheapest$1,528Average$1,871FlexibilityNo cancel feeOn-time67%
Search Air Canada flights
Hawaiian AirlinesCheapest$1,741Average$2,310FlexibilityNo cancel feeOn-time85%
Search Hawaiian Airlines flights
Qatar AirwaysCheapest$2,462Average$2,663FlexibilityNo cancel feeOn-time68%
Search Qatar Airways flights

Fly with Cheapflights

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

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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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