What is the cheapest airline that flies from Adelaide to Washington?

United Airlines, Air Canada, and Qantas Airways are the most popular carriers operating from Adelaide to Washington

When did momondo last update prices for flights from Adelaide Airport to Washington?

Prices for flights from Adelaide Airport to Washington are updated daily.

How many operators does momondo search for flights from Adelaide Airport to Washington?

As of July 2026, there are 3 operators available to choose from for flights from Adelaide Airport to Washington.

How old do you have to be to fly from Adelaide Airport to Washington?

The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and stopovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Adelaide Airport to Washington.

What documentation or ID do you need to fly to Washington?

The required travel and health documents for your Washington trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's licence and a passport valid for six months after your intended arrival at Washington. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

$1,084 Cheap Flights from Adelaide to Washington in 2026

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from Adelaide to Washington

Return

One-way

Cheap return flights

Enter your travel dates to find the best prices.

13:25 - 20:56

ADL

SEA

24h 01m

2 stops

17:10 - 11:55

SEA

ADL

26h 15m

2 stops

$1,755Qantas Airways

Tue, 21 Jul - Wed, 5 Aug

14:25 - 16:47

ADL

PDX

42h 52m

2 stops

17:37 - 11:05

PDX

ADL

24h 58m

2 stops

$1,767Qantas Airways

Mon, 10 Aug - Mon, 17 Aug

06:05 - 14:30

ADL

SEA

24h 55m

2 stops

18:52 - 10:55

SEA

ADL

23h 33m

2 stops

$1,809Virgin Australia

Thu, 6 Aug - Sun, 16 Aug

06:05 - 12:20

ADL

SEA

22h 45m

2 stops

16:58 - 11:05

SEA

ADL

25h 37m

2 stops

$1,811Virgin Australia

Mon, 17 Aug - Mon, 24 Aug

06:10 - 14:37

ADL

SEA

26h 57m

2 stops

19:05 - 13:55

SEA

ADL

24h 20m

2 stops

$1,827Air Canada

Tue, 24 Nov - Tue, 15 Dec

19:00 - 21:51

ADL

SEA

43h 21m

2 stops

09:05 - 11:10

SEA

ADL

33h 35m

2 stops

$1,836Virgin Australia

Sun, 16 Aug - Sun, 23 Aug

06:10 - 14:37

ADL

SEA

26h 57m

2 stops

19:05 - 13:55

SEA

ADL

24h 20m

2 stops

$1,896Air Canada

Tue, 24 Nov - Tue, 15 Dec

06:40 - 12:34

ADL

SEA

22h 24m

2 stops

10:29 - 11:05

SEA

ADL

32h 06m

2 stops

$1,914United Airlines

Fri, 17 Jul - Thu, 30 Jul

17:35 - 08:45

ADL

SEA

31h 40m

1 stop

10:15 - 08:05

SEA

ADL

28h 20m

2 stops

$1,922Singapore Airlines

Sat, 19 Sep - Tue, 13 Oct

06:40 - 14:30

ADL

SEA

24h 20m

2 stops

08:45 - 10:55

SEA

ADL

33h 40m

2 stops

$1,927United Airlines

Fri, 17 Jul - Thu, 30 Jul

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Air Canada flights from Adelaide to State of Washington

Our best Air Canada deals on Adelaide to State of Washington flight tickets

Air Canada

24 Nov

ADL06:10Adelaide

26h 57m

2 stops

SEA14:37Seattle/Tacoma Intl

15 Dec

SEA19:05Seattle/Tacoma Intl

24h 20m

2 stops

ADL13:55Adelaide

$1,827

Air Canada

24 Nov

ADL06:10Adelaide

26h 57m

2 stops

SEA14:37Seattle/Tacoma Intl

15 Dec

SEA19:05Seattle/Tacoma Intl

24h 20m

2 stops

ADL13:55Adelaide

$1,896

Air Canada

24 Nov

ADL06:10Adelaide

26h 57m

2 stops

SEA14:37Seattle/Tacoma Intl

15 Dec

SEA19:05Seattle/Tacoma Intl

24h 20m

2 stops

ADL13:55Adelaide

$1,958

United Airlines flights from Adelaide to State of Washington

Our best United Airlines deals on Adelaide to State of Washington flight tickets

United Airlines

17 July

ADL06:40Adelaide

22h 24m

2 stops

SEA12:34Seattle/Tacoma Intl

30 July

SEA10:29Seattle/Tacoma Intl

32h 06m

2 stops

ADL11:05Adelaide

$1,914

United Airlines

17 July

ADL06:40Adelaide

24h 20m

2 stops

SEA14:30Seattle/Tacoma Intl

30 July

SEA08:45Seattle/Tacoma Intl

33h 40m

2 stops

ADL10:55Adelaide

$1,927

United Airlines

17 July

ADL06:40Adelaide

24h 20m

2 stops

SEA14:30Seattle/Tacoma Intl

30 July

SEA10:29Seattle/Tacoma Intl

31h 56m

2 stops

ADL10:55Adelaide

$1,930

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

AdelaideSeattle

ADL - SEA

ADLSEA

Adelaide

Tue 21/7

13:25-20:56

2 stops24h 01m

Seattle/Tacoma Intl

Wed 5/8

17:10-11:55

2 stops26h 15m

$1,755

AdelaidePortland

ADL - PDX

ADLPDX

Adelaide

Mon 10/8

14:25-16:47

2 stops42h 52m

Portland

Mon 17/8

17:37-11:05

2 stops24h 58m

$1,767

AdelaideSeattle

ADL - SEA

ADLSEA

Adelaide

Thu 6/8

06:05-14:30

2 stops24h 55m

Seattle/Tacoma Intl

Sun 16/8

18:52-10:55

2 stops23h 33m

$1,809

Fastest return journey

AdelaideSeattle

ADL - SEA

ADLSEA

Adelaide

Mon 17/8

06:05-12:20

2 stops22h 45m

Seattle/Tacoma Intl

Mon 24/8

16:58-11:05

2 stops25h 37m

$1,811

AdelaideSeattle

ADL - SEA

ADLSEA

Adelaide

Tue 24/11

06:10-14:37

2 stops26h 57m

Seattle/Tacoma Intl

Tue 15/12

19:05-13:55

2 stops24h 20m

$1,827

AdelaideSeattle

ADL - SEA

ADLSEA

Adelaide

Sun 16/8

19:00-21:51

2 stops43h 21m

Seattle/Tacoma Intl

Sun 23/8

09:05-11:10

2 stops33h 35m

$1,836

AdelaideSeattle

ADL - SEA

ADLSEA

Adelaide

Tue 24/11

06:10-14:37

2 stops26h 57m

Seattle/Tacoma Intl

Tue 15/12

19:05-13:55

2 stops24h 20m

$1,896

AdelaideSeattle

ADL - SEA

ADLSEA

Adelaide

Fri 17/7

06:40-12:34

2 stops22h 24m

Seattle/Tacoma Intl

Thu 30/7

10:29-11:05

2 stops32h 06m

$1,914

AdelaideSeattle

ADL - SEA

ADLSEA

Adelaide

Sat 19/9

17:35-08:45

1 stop31h 40m

Seattle/Tacoma Intl

Tue 13/10

10:15-08:05

2 stops28h 20m

$1,922

AdelaideSeattle

ADL - SEA

ADLSEA

Adelaide

Fri 17/7

06:40-14:30

2 stops24h 20m

Seattle/Tacoma Intl

Thu 30/7

08:45-10:55

2 stops33h 40m

$1,927

Flights are sorted by cheapest return flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

How to get the cheapest flight ticket from Adelaide to State of Washington

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

Prices

Airlines

What is the cheapest month to fly to State of Washington?

The month of October is, on average, the cheapest month to fly to State of Washington from Adelaide, with most prices found around $0. If you aren’t able to travel during the month of October, then book flights to State of Washington from Adelaide during March instead. Flights to State of Washington in March, while not as cheap as those in October, still average around $0.

Can stopping save me money on Adelaide to State of Washington flights?

You could potentially save up to 12% on your flight if you consider stops on a Adelaide to State of Washington flight.

Cheap Adelaide to State of Washington flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Adelaide to State of Washington

Fastest flight time	21h 42m
Direct flights	None

The fastest flight from Adelaide to State of Washington takes 21h 42m

There are no direct flights from Adelaide to State of Washington. There are no popular flight routes from Adelaide to State of Washington.

Search flight deals

Frequently asked questions about flying from Adelaide to Washington

When did momondo last update prices for flights from Adelaide Airport to Washington?
Prices for flights from Adelaide Airport to Washington are updated daily.
How many operators does momondo search for flights from Adelaide Airport to Washington?
As of July 2026, there are 3 operators available to choose from for flights from Adelaide Airport to Washington.
How old do you have to be to fly from Adelaide Airport to Washington?
The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and stopovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Adelaide Airport to Washington.
What documentation or ID do you need to fly to Washington?
The required travel and health documents for your Washington trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's licence and a passport valid for six months after your intended arrival at Washington. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

Best airlines flying from Adelaide to State of Washington

Compare and see reviews for airlines that fly from Adelaide to State of Washington with momondo

Airline	Rating	Free cancellation	Price
Air Canada	PriceFrom $1,200	Free cancellation	Rating 7.1 11,299 reviews		Search Air Canada flights

Why use momondo?

Why should I use momondo to find a flight deal from Adelaide to Washington?

Finding the right flight to Washington from Adelaide is quick and easy when you have a range of options in front of you, from reputable agents and recognisable airlines. Options that can then be filtered down to find the best fit. That is what momondo does. We make finding flights to Washington quick and easy, saving you time and money.

Can I find flights from Adelaide to Washington with flexible booking policies on momondo?

Flights from Adelaide to Washington with flexible booking policies can be found by using the search form above and then selecting our dedicated flexible booking filter, which will highlight only the flights where this policy is applied.

How can momondo help me find flights from Adelaide to Washington?

momondo helps you find the best flight between Adelaide and Washington by providing filters to narrow your choice of flights to those matching your criteria. You can select flights based on numerous factors such as price, departure and landing times, airport and airline.

I’m not ready to book a flight from Adelaide to Washington right now. Can momondo alert me if prices change?

Yes. momondo can track prices for Adelaide to Washington flights and alert you when they change. Perform a search to set up the price alert. All that is required is a valid email address.