Find flights
When to book
Airlines
FAQs

Cheap flights from Adelaide to Washington from $826

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 13/10. Fares are subject to change and may not be available on all flights or dates of travel.
ADL — SEA
12 Oct — 19 Oct1
1 adult
1 adult, Economy

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 12 September 2025.

Round-trip from

$1,392

One-way from

$826

Popular in

October

Cheapest in

November

Average price

$2,212
Air Canada
  • Air Canada
  • 24/10-30/10
  • 4 total stops
  • 54h 40m total
  • Adelaide to Washington
Search Deals
Air Canada
  • Air Canada
  • 13/10
  • 2 total stops
  • 25h 36m total
  • Adelaide to Washington
Search Deals
Highest demand for flights based on searches. 3% potential increase in price ($118 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($90 potential savings vs. average return price).
Search Deals
Average for round-trip flights in September 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 12 September 2025.

Fri 24/1006:10ADL - PDX
2 stops20h 40mMultiple Airlines
Thu 30/1019:00PDX - ADL
2 stops34h 00mMultiple Airlines
Deal found 10/9$1,392
Thu 23/1006:10ADL - PDX
2 stops30h 06mAir Canada
Thu 30/1015:15PDX - ADL
2 stops37h 45mAir Canada
Deal found 10/9$1,437
Mon 27/1007:50ADL - PDX
2 stops23h 44mMultiple Airlines
Mon 3/1117:55PDX - ADL
2 stops25h 15mMultiple Airlines
Deal found 11/9$1,463
Thu 23/1006:10ADL - PDX
2 stops26h 06mAir Canada
Fri 31/1009:50PDX - ADL
2 stops43h 10mAir Canada
Deal found 10/9$1,478
Sat 25/1018:50ADL - PDX
2 stops37h 25mAir Canada
Thu 30/1015:15PDX - ADL
2 stops37h 45mAir Canada
Deal found 10/9$1,484
Thu 23/1006:00ADL - PDX
2 stops34h 54mQantas Airways
Wed 29/1017:55PDX - ADL
2 stops26h 15mQantas Airways
Deal found 10/9$1,531
Fri 24/1006:00ADL - PDX
2 stops23h 00mQantas Airways
Wed 29/1017:55PDX - ADL
2 stops26h 15mQantas Airways
Deal found 10/9$1,604
Sat 25/1014:55ADL - SEA
2 stops22h 42mMultiple Airlines
Sat 1/1117:30SEA - ADL
2 stops22h 50mMultiple Airlines
Deal found 10/9$1,638
Mon 15/1214:55ADL - SEA
2 stops37h 44mUnited Airlines
Sat 17/109:25SEA - ADL
1 stop29h 35mUnited Airlines
Deal found 10/9$1,651
Mon 15/1214:55ADL - SEA
2 stops37h 44mUnited Airlines
Tue 20/119:30SEA - ADL
2 stops24h 10mUnited Airlines
Deal found 11/9$1,698
Sat 25/1006:00ADL - PDX
2 stops26h 16mAir Canada
Fri 31/1019:00PDX - ADL
2 stops34h 00mAir Canada
Deal found 10/9$1,707
Tue 16/1206:00ADL - SEA
2 stops31h 52mUnited Airlines
Fri 16/115:30SEA - ADL
2 stops47h 30mUnited Airlines
Deal found 11/9$1,712

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 12 September 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

AdelaidePortland

ADL - PDX

ADLPDX

Adelaide

Fri 24/10

06:10-09:20

2 stops20h 40m

Portland

Thu 30/10

19:00-22:30

2 stops34h 00m

$1,392

AdelaidePortland

ADL - PDX

ADLPDX

Adelaide

Wed 11/3

13:55-14:42

1 stop18h 17m

Portland

Sun 15/3

23:55-08:30

2 stops39h 05m

$1,405

AdelaideSeattle

ADL - SEA

ADLSEA

Adelaide

Wed 11/3

13:55-18:17

1 stop21h 52m

Seattle/Tacoma Intl

Sun 15/3

19:10-08:30

2 stops43h 50m

$1,405

AdelaidePortland

ADL - PDX

ADLPDX

Adelaide

Thu 23/10

06:10-18:46

2 stops30h 06m

Portland

Thu 30/10

15:15-22:30

2 stops37h 45m

$1,437

AdelaidePortland

ADL - PDX

ADLPDX

Adelaide

Mon 27/10

07:50-14:04

2 stops23h 44m

Portland

Mon 3/11

17:55-13:40

2 stops25h 15m

$1,463

AdelaidePortland

ADL - PDX

ADLPDX

Adelaide

Wed 11/3

06:10-09:15

2 stops20h 35m

Portland

Sun 15/3

15:15-13:55

2 stops29h 10m

$1,478

AdelaidePortland

ADL - PDX

ADLPDX

Adelaide

Sat 25/10

18:50-14:45

2 stops37h 25m

Portland

Thu 30/10

15:15-22:30

2 stops37h 45m

$1,484

AdelaideSeattle

ADL - SEA

ADLSEA

Adelaide

Wed 11/3

06:10-15:01

2 stops26h 21m

Seattle/Tacoma Intl

Sun 15/3

20:00-16:20

2 stops26h 50m

$1,502

AdelaidePortland

ADL - PDX

ADLPDX

Adelaide

Sun 1/2

06:10-09:15

2 stops21h 35m

Portland

Fri 13/2

15:15-10:55

2 stops49h 10m

$1,517

AdelaideSeattle

ADL - SEA

ADLSEA

Adelaide

Sat 25/10

14:55-20:07

2 stops22h 42m

Seattle/Tacoma Intl

Sat 1/11

17:30-09:50

2 stops22h 50m

$1,638

Flights are sorted by cheapest return flights first.

Deals found on 9/9

Showing 1-10 of 24 results
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

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 $1,322). 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 12 September 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.

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 12 September 2025.
Read reviews from past customers who have flown with Singapore Airlines, 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.
Singapore Airlines
8.1
Very Good
1,365 reviews
Check prices

Entertainment

8.0

Boarding

8.2

Comfort

8.0

Crew

8.6

Overall

8.1

Food

7.7

Reviews

1 / 20
10.0
Excellent

Anonymous,July 2025

DAD - SIN

Person in front laid back his seat. I’m quite tall found it difficult to sit straight lucky seat next to me was empty was able to stretch my legs. Eating my meal was difficult also as seat remained lowered
Singapore Airlines
8.1
Very Good
1,365 reviews
Singapore Airlines
8.1
Very Good
1,365 reviews
Check prices

Entertainment

8.0

Boarding

8.2

Comfort

8.0

Crew

8.6

Overall

8.1

Food

7.7

Reviews

1 / 20
10.0
Excellent

Anonymous,July 2025

DAD - SIN

Person in front laid back his seat. I’m quite tall found it difficult to sit straight lucky seat next to me was empty was able to stretch my legs. Eating my meal was difficult also as seat remained lowered
Virgin Australia
7.6
Good
416 reviews
Singapore Airlines
8.1
Very Good
1,365 reviews
Check prices

Entertainment

8.0

Boarding

8.2

Comfort

8.0

Crew

8.6

Overall

8.1

Food

7.7

Reviews

1 / 20
10.0
Excellent

Anonymous,July 2025

DAD - SIN

Person in front laid back his seat. I’m quite tall found it difficult to sit straight lucky seat next to me was empty was able to stretch my legs. Eating my meal was difficult also as seat remained lowered
Qantas Airways
7.5
Good
905 reviews
Singapore Airlines
8.1
Very Good
1,365 reviews
Check prices

Entertainment

8.0

Boarding

8.2

Comfort

8.0

Crew

8.6

Overall

8.1

Food

7.7

Reviews

1 / 20
10.0
Excellent

Anonymous,July 2025

DAD - SIN

Person in front laid back his seat. I’m quite tall found it difficult to sit straight lucky seat next to me was empty was able to stretch my legs. Eating my meal was difficult also as seat remained lowered
United Airlines
7.4
Good
8,937 reviews
Singapore Airlines
8.1
Very Good
1,365 reviews
Check prices

Entertainment

8.0

Boarding

8.2

Comfort

8.0

Crew

8.6

Overall

8.1

Food

7.7

Reviews

1 / 20
10.0
Excellent

Anonymous,July 2025

DAD - SIN

Person in front laid back his seat. I’m quite tall found it difficult to sit straight lucky seat next to me was empty was able to stretch my legs. Eating my meal was difficult also as seat remained lowered
Air Canada
7.1
Good
10,000 reviews
Singapore Airlines
8.1
Very Good
1,365 reviews
Check prices

Entertainment

8.0

Boarding

8.2

Comfort

8.0

Crew

8.6

Overall

8.1

Food

7.7

Reviews

1 / 20
10.0
Excellent

Anonymous,July 2025

DAD - SIN

Person in front laid back his seat. I’m quite tall found it difficult to sit straight lucky seat next to me was empty was able to stretch my legs. Eating my meal was difficult also as seat remained lowered

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 $1,405, United Airlines can have you in State of Washington from Adelaide in 18h 17m. 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.

  • What are the cheapest airlines to fly from Adelaide to State of Washington one-way?

    The cheapet airlines for a one-way flight from Adelaide to State of Washington are Air Canada ($826), United Airlines ($995), and Singapore Airlines ($1,464).

  • 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 $1,322). 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

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Adelaide to Washington

See prices for flight routes from nearby airports that may be better suited for you.
Adelaide to Los Angeles flights
Adelaide to Seattle flights
Adelaide to San Francisco flights
Adelaide to Dallas/Fort Worth flights
Adelaide to John F Kennedy Intl flights
Adelaide to LaGuardia flights
Adelaide to Newark flights
Adelaide to Honolulu flights
Adelaide to Miami flights
Adelaide to George Bush Intcntl flights
Adelaide to Hobby flights
Adelaide to O'Hare Intl flights
Adelaide to Boston flights
Adelaide to Las Vegas flights
Adelaide to Atlanta flights
Adelaide to Minneapolis flights
Adelaide to Portland flights
Adelaide to Philadelphia flights
Adelaide to Fort Lauderdale flights
Adelaide to Salt Lake City flights
Adelaide to Tampa flights
Adelaide to San Jose flights
Adelaide to Richmond flights
Adelaide to Kahului flights
Adelaide to Reno flights

Top 6 airlines flying from Adelaide to Washington

Discover the top 6 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 12 September 2025.
AirlineCheapestAverageFlexibilityOn-time
Air New ZealandCheapest$924Average$1,528FlexibilityNo cancel feeOn-time78%
Search Air New Zealand flights
Air CanadaCheapest$1,256Average$1,617FlexibilityNo cancel feeOn-time67%
Search Air Canada flights
Singapore AirlinesCheapest$1,402Average$1,654FlexibilityNo cancel feeOn-time81%
Search Singapore Airlines flights
Qantas AirwaysCheapest$1,436Average$1,814FlexibilityNo cancel feeOn-time74%
Search Qantas Airways flights
Virgin AustraliaCheapest$1,716Average$2,023FlexibilityNo cancel feeOn-time80%
Search Virgin Australia flights
United AirlinesCheapest$1,718Average$2,024FlexibilityNo 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.

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.