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

Air Canada, Qantas Airways, and Singapore Airlines 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 August 2026, there are 2 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.

$1,074 Cheap Flights from Adelaide to Washington in 2026

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from Adelaide to Washington

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One-way

Cheap return flights

Enter your travel dates to find the best prices.

18:35 - 08:45ADL Adelaide-SEA Seattle/Tacoma Intl

31h 40m1 stop Singapore Changi

08:45 - 08:50SEA Seattle/Tacoma Intl-ADL Adelaide

29h 35m1 stop Singapore Changi

$1,757Singapore Airlines

Mon, 19 Oct - Wed, 18 Nov

06:05 - 13:25ADL Adelaide-PDX Portland

23h 50m2 stops Melbourne Los Angeles

17:03 - 11:05PDX Portland-ADL Adelaide

24h 32m2 stops Los Angeles Melbourne

$1,843Multiple Airlines

Wed, 30 Sep - Wed, 7 Oct

22:00 - 12:45ADL Adelaide-SEA Seattle/Tacoma Intl

31h 15m1 stop Doha Hamad Intl

16:25 - 15:00SEA Seattle/Tacoma Intl-ADL Adelaide

30h 05m1 stop Doha Hamad Intl

$1,894Qatar Airways

Thu, 10 Sep - Thu, 17 Sep

06:10 - 18:22ADL Adelaide-SEA Seattle/Tacoma Intl

30h 42m2 stops Brisbane Vancouver Intl

15:15 - 10:55SEA Seattle/Tacoma Intl-ADL Adelaide

25h 10m2 stops Vancouver Intl Sydney Kingsford Smith

$1,896Air Canada

Tue, 24 Nov - Tue, 15 Dec

06:10 - 18:22ADL Adelaide-SEA Seattle/Tacoma Intl

30h 42m2 stops Brisbane Vancouver Intl

15:15 - 10:55SEA Seattle/Tacoma Intl-ADL Adelaide

25h 10m2 stops Vancouver Intl Sydney Kingsford Smith

$1,899Air Canada

Tue, 24 Nov - Tue, 15 Dec

13:15 - 08:45ADL Adelaide-SEA Seattle/Tacoma Intl

37h 00m2 stops Perth Singapore Changi

08:45 - 17:20SEA Seattle/Tacoma Intl-ADL Adelaide

38h 05m1 stop Singapore Changi

$1,920Singapore Airlines

Mon, 19 Oct - Wed, 18 Nov

14:25 - 21:29ADL Adelaide-SEA Seattle/Tacoma Intl

23h 34m2 stops Sydney Kingsford Smith Honolulu

10:36 - 22:35SEA Seattle/Tacoma Intl-ADL Adelaide

43h 29m2 stops Honolulu Sydney Kingsford Smith

$1,949Multiple Airlines

Thu, 10 Sep - Thu, 17 Sep

11:50 - 20:50ADL Adelaide-PDX Portland

25h 30m2 stops Sydney Kingsford Smith Honolulu

17:35 - 22:35PDX Portland-ADL Adelaide

36h 30m2 stops Honolulu Sydney Kingsford Smith

$1,949Multiple Airlines

Thu, 10 Sep - Thu, 17 Sep

06:10 - 09:27ADL Adelaide-SEA Seattle/Tacoma Intl

21h 47m2 stops Brisbane Vancouver Intl

15:15 - 10:55SEA Seattle/Tacoma Intl-ADL Adelaide

25h 10m2 stops Vancouver Intl Sydney Kingsford Smith

$1,961Multiple Airlines

Tue, 24 Nov - Tue, 15 Dec

06:10 - 09:27ADL Adelaide-SEA Seattle/Tacoma Intl

21h 47m2 stops Brisbane Vancouver Intl

15:15 - 10:55SEA Seattle/Tacoma Intl-ADL Adelaide

25h 10m2 stops Vancouver Intl Sydney Kingsford Smith

$1,963Multiple Airlines

Tue, 24 Nov - Tue, 15 Dec

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Singapore Airlines flights from Adelaide to State of Washington

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

Singapore Airlines

19 Oct

ADL18:35Adelaide

31h 40m

1 stop

SEA08:45Seattle/Tacoma Intl

18 Nov

SEA08:45Seattle/Tacoma Intl

29h 35m

1 stop

ADL08:50Adelaide

$1,757

Singapore Airlines

19 Oct

ADL13:15Adelaide

37h 00m

2 stops

SEA08:45Seattle/Tacoma Intl

18 Nov

SEA08:45Seattle/Tacoma Intl

38h 05m

1 stop

ADL17:20Adelaide

$1,920

Singapore Airlines

24 Nov

ADL18:20Adelaide

31h 20m

2 stops

SEA07:10Seattle/Tacoma Intl

15 Dec

SEA08:45Seattle/Tacoma Intl

38h 05m

1 stop

ADL17:20Adelaide

$2,413

Qatar Airways flights from Adelaide to State of Washington

Our best Qatar Airways deals on Adelaide to State of Washington flight tickets

Qatar Airways

10 Sept

ADL22:00Adelaide

31h 15m

1 stop

SEA12:45Seattle/Tacoma Intl

17 Sept

SEA16:25Seattle/Tacoma Intl

30h 05m

1 stop

ADL15:00Adelaide

$1,894

Qatar Airways

27 Sept

ADL22:00Adelaide

31h 15m

1 stop

SEA12:45Seattle/Tacoma Intl

4 Oct

SEA16:25Seattle/Tacoma Intl

30h 05m

1 stop

ADL16:00Adelaide

$2,197

Qatar Airways

13 Sept

ADL22:00Adelaide

40h 31m

2 stops

PDX22:01Portland

20 Sept

PDX09:20Portland

37h 10m

2 stops

ADL15:00Adelaide

$2,246

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

AdelaideSeattle

ADL Adelaide - SEA Seattle/Tacoma Intl

ADLSEA

Adelaide

Mon 19/10

18:35-08:45

1 stop31h 40m

Seattle/Tacoma Intl

Wed 18/11

08:45-08:50

1 stop29h 35m

$1,757

AdelaidePortland

ADL Adelaide - PDX Portland

ADLPDX

Adelaide

Wed 30/9

06:05-13:25

2 stops23h 50m

Portland

Wed 7/10

17:03-11:05

2 stops24h 32m

$1,843

AdelaideSeattle

ADL Adelaide - SEA Seattle/Tacoma Intl

ADLSEA

Adelaide

Thu 10/9

22:00-12:45

1 stop31h 15m

Seattle/Tacoma Intl

Thu 17/9

16:25-15:00

1 stop30h 05m

$1,894

AdelaideSeattle

ADL Adelaide - SEA Seattle/Tacoma Intl

ADLSEA

Adelaide

Tue 24/11

06:10-18:22

2 stops30h 42m

Seattle/Tacoma Intl

Tue 15/12

15:15-10:55

2 stops25h 10m

$1,896

AdelaideSeattle

ADL Adelaide - SEA Seattle/Tacoma Intl

ADLSEA

Adelaide

Tue 24/11

06:10-18:22

2 stops30h 42m

Seattle/Tacoma Intl

Tue 15/12

15:15-10:55

2 stops25h 10m

$1,899

AdelaideSeattle

ADL Adelaide - SEA Seattle/Tacoma Intl

ADLSEA

Adelaide

Mon 19/10

13:15-08:45

2 stops37h 00m

Seattle/Tacoma Intl

Wed 18/11

08:45-17:20

1 stop38h 05m

$1,920

AdelaideSeattle

ADL Adelaide - SEA Seattle/Tacoma Intl

ADLSEA

Adelaide

Thu 10/9

14:25-21:29

2 stops23h 34m

Seattle/Tacoma Intl

Thu 17/9

10:36-22:35

2 stops43h 29m

$1,949

AdelaidePortland

ADL Adelaide - PDX Portland

ADLPDX

Adelaide

Thu 10/9

11:50-20:50

2 stops25h 30m

Portland

Thu 17/9

17:35-22:35

2 stops36h 30m

$1,949

Fastest return journey

AdelaideSeattle

ADL Adelaide - SEA Seattle/Tacoma Intl

ADLSEA

Adelaide

Tue 24/11

06:10-09:27

2 stops21h 47m

Seattle/Tacoma Intl

Tue 15/12

15:15-10:55

2 stops25h 10m

$1,961

AdelaideSeattle

ADL Adelaide - SEA Seattle/Tacoma Intl

ADLSEA

Adelaide

Tue 24/11

06:10-09:27

2 stops21h 47m

Seattle/Tacoma Intl

Tue 15/12

15:15-10:55

2 stops25h 10m

$1,963

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

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

You could potentially save up to 10% 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	22h 48m
Direct flights	None

The fastest flight from Adelaide to State of Washington takes 22h 48m

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 August 2026, there are 2 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 $1,176	Free cancellation	Rating 7.1 11,479 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.