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

Cathay Pacific and Qatar 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 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.

$1,749 Cheap Flights from Adelaide to Washington in 2026/27

Find the cheapest flights from Adelaide to Washington

Return

One-way

Cheap return flights

Enter your travel dates to find the best prices.

19:55 - 09:32ADL Adelaide-SEA Seattle/Tacoma Intl

32h 07m2 stops Sydney Kingsford Smith Vancouver Intl

19:05 - 16:20SEA Seattle/Tacoma Intl-ADL Adelaide

26h 45m2 stops Vancouver Intl Brisbane

$1,749Air Canada

Sun, 8 Nov - Sun, 15 Nov

17:50 - 09:32ADL Adelaide-SEA Seattle/Tacoma Intl

34h 12m3 stops Melbourne Brisbane Vancouver Intl

19:05 - 16:20SEA Seattle/Tacoma Intl-ADL Adelaide

26h 45m2 stops Vancouver Intl Brisbane

$1,774Multiple Airlines

Sun, 8 Nov - Sun, 15 Nov

12:05 - 18:22ADL Adelaide-SEA Seattle/Tacoma Intl

24h 47m2 stops Auckland Intl Vancouver Intl

06:00 - 10:55SEA Seattle/Tacoma Intl-ADL Adelaide

34h 25m2 stops Los Angeles Auckland Intl

$1,786Multiple Airlines

Wed, 4 Nov - Wed, 11 Nov

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

30h 42m2 stops Brisbane Vancouver Intl

10:10 - 22:30SEA Seattle/Tacoma Intl-ADL Adelaide

41h 50m2 stops Vancouver Intl Brisbane

$1,842Air Canada

Fri, 13 Nov - Wed, 18 Nov

06:10 - 09:32ADL Adelaide-SEA Seattle/Tacoma Intl

21h 52m2 stops Brisbane Vancouver Intl

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

37h 30m2 stops Vancouver Intl Sydney Kingsford Smith

$1,860Air Canada

Tue, 24 Nov - Tue, 15 Dec

06:10 - 09:32ADL Adelaide-SEA Seattle/Tacoma Intl

21h 52m2 stops Brisbane Vancouver Intl

15:15 - 18:10SEA Seattle/Tacoma Intl-ADL Adelaide

32h 25m2 stops Vancouver Intl Sydney Kingsford Smith

$1,865Air Canada

Tue, 24 Nov - Tue, 15 Dec

14:25 - 22:37ADL Adelaide-SEA Seattle/Tacoma Intl

25h 42m2 stops Sydney Kingsford Smith Los Angeles

16:20 - 13:45SEA Seattle/Tacoma Intl-ADL Adelaide

27h 55m2 stops Los Angeles Sydney Kingsford Smith

$1,895Qantas Airways

Sat, 24 Oct - Sat, 31 Oct

18:35 - 07:05ADL Adelaide-SEA Seattle/Tacoma Intl

55h 00m1 stop Singapore Changi

08:40 - 14:10SEA Seattle/Tacoma Intl-ADL Adelaide

35h 00m2 stops Singapore Changi Melbourne

$1,970Singapore Airlines

Sun, 8 Nov - Sun, 15 Nov

12:00 - 08:45ADL Adelaide-SEA Seattle/Tacoma Intl

39h 15m1 stop Hong Kong Intl

10:25 - 10:30SEA Seattle/Tacoma Intl-ADL Adelaide

29h 35m1 stop Hong Kong Intl

$1,971Cathay Pacific

Fri, 13 Nov - Wed, 18 Nov

10:10 - 08:45ADL Adelaide-SEA Seattle/Tacoma Intl

41h 05m2 stops Melbourne Hong Kong Intl

10:25 - 10:30SEA Seattle/Tacoma Intl-ADL Adelaide

29h 35m1 stop Hong Kong Intl

$1,986Cathay Pacific

Wed, 4 Nov - Wed, 11 Nov

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Cathay Pacific flights from Adelaide to State of Washington

Our best Cathay Pacific deals on Adelaide to State of Washington flight tickets

Cathay Pacific

13 Nov

ADL12:00Adelaide

39h 15m

1 stop

SEA08:45Seattle/Tacoma Intl

18 Nov

SEA10:25Seattle/Tacoma Intl

29h 35m

1 stop

ADL10:30Adelaide

$1,971

Cathay Pacific

4 Nov

ADL10:10Adelaide

41h 05m

2 stops

SEA08:45Seattle/Tacoma Intl

11 Nov

SEA10:25Seattle/Tacoma Intl

29h 35m

1 stop

ADL10:30Adelaide

$1,986

Cathay Pacific

13 Nov

ADL06:05Adelaide

45h 10m

2 stops

SEA08:45Seattle/Tacoma Intl

18 Nov

SEA10:25Seattle/Tacoma Intl

29h 35m

1 stop

ADL10:30Adelaide

$2,050

Singapore Airlines flights from Adelaide to State of Washington

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

Singapore Airlines

8 Nov

ADL18:35Adelaide

55h 00m

1 stop

SEA07:05Seattle/Tacoma Intl

15 Nov

SEA08:40Seattle/Tacoma Intl

35h 00m

2 stops

ADL14:10Adelaide

$1,970

Singapore Airlines

8 Nov

ADL18:35Adelaide

55h 00m

1 stop

SEA07:05Seattle/Tacoma Intl

15 Nov

SEA08:40Seattle/Tacoma Intl

29h 40m

1 stop

ADL08:50Adelaide

$2,221

Singapore Airlines

4 Nov

ADL10:15Adelaide

63h 20m

1 stop

SEA07:05Seattle/Tacoma Intl

11 Nov

SEA08:40Seattle/Tacoma Intl

29h 40m

1 stop

ADL08:50Adelaide

$2,276

momondo Fare Finder

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

AdelaideSeattle

ADL Adelaide - SEA Seattle/Tacoma Intl

ADLSEA

Adelaide

Sun 8/11

19:55-09:32

2 stops32h 07m

Seattle/Tacoma Intl

Sun 15/11

19:05-16:20

2 stops26h 45m

$1,749

AdelaideSeattle

ADL Adelaide - SEA Seattle/Tacoma Intl

ADLSEA

Adelaide

Sun 8/11

17:50-09:32

3 stops34h 12m

Seattle/Tacoma Intl

Sun 15/11

19:05-16:20

2 stops26h 45m

$1,774

AdelaideSeattle

ADL Adelaide - SEA Seattle/Tacoma Intl

ADLSEA

Adelaide

Wed 4/11

12:05-18:22

2 stops24h 47m

Seattle/Tacoma Intl

Wed 11/11

06:00-10:55

2 stops34h 25m

$1,786

AdelaideSeattle

ADL Adelaide - SEA Seattle/Tacoma Intl

ADLSEA

Adelaide

Fri 13/11

06:10-18:22

2 stops30h 42m

Seattle/Tacoma Intl

Wed 18/11

10:10-22:30

2 stops41h 50m

$1,842

AdelaideSeattle

ADL Adelaide - SEA Seattle/Tacoma Intl

ADLSEA

Adelaide

Tue 24/11

06:10-09:32

2 stops21h 52m

Seattle/Tacoma Intl

Tue 15/12

10:10-18:10

2 stops37h 30m

$1,860

AdelaideSeattle

ADL Adelaide - SEA Seattle/Tacoma Intl

ADLSEA

Adelaide

Tue 24/11

06:10-09:32

2 stops21h 52m

Seattle/Tacoma Intl

Tue 15/12

15:15-18:10

2 stops32h 25m

$1,865

Fastest return journey

AdelaideSeattle

ADL Adelaide - SEA Seattle/Tacoma Intl

ADLSEA

Adelaide

Sat 24/10

14:25-22:37

2 stops25h 42m

Seattle/Tacoma Intl

Sat 31/10

16:20-13:45

2 stops27h 55m

$1,895

AdelaideSeattle

ADL Adelaide - SEA Seattle/Tacoma Intl

ADLSEA

Adelaide

Sun 8/11

18:35-07:05

1 stop55h 00m

Seattle/Tacoma Intl

Sun 15/11

08:40-14:10

2 stops35h 00m

$1,970

AdelaideSeattle

ADL Adelaide - SEA Seattle/Tacoma Intl

ADLSEA

Adelaide

Fri 13/11

12:00-08:45

1 stop39h 15m

Seattle/Tacoma Intl

Wed 18/11

10:25-10:30

1 stop29h 35m

$1,971

AdelaideSeattle

ADL Adelaide - SEA Seattle/Tacoma Intl

ADLSEA

Adelaide

Wed 4/11

10:10-08:45

2 stops41h 05m

Seattle/Tacoma Intl

Wed 11/11

10:25-10:30

1 stop29h 35m

$1,986

Flights are sorted by cheapest return flights first.

Showing 1-10 of 14 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 August 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 August, 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 August, still average around $0.

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

You could potentially save up to 2% 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

Best price found	$1,989
Fastest flight time	22h 35m
Direct flights	None

The best one-way flight to State of Washington from Adelaide in the past 72 hours is $1,989. The best return flight deal from Adelaide to State of Washington found on momondo in the last 72 hours is $1,749.

The fastest flight from Adelaide to State of Washington takes 22h 35m

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 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.

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.