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.

$1,670 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.

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

21h 47m2 stops Brisbane Vancouver Intl

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

30h 15m2 stops Vancouver Intl Sydney Kingsford Smith

$1,670Air Canada

Tue, 24 Nov - Tue, 15 Dec

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

21h 47m2 stops Brisbane Vancouver Intl

19:05 - 22:30SEA Seattle/Tacoma Intl-ADL Adelaide

32h 55m2 stops Vancouver Intl Brisbane

$1,673Air Canada

Wed, 11 Nov - Wed, 18 Nov

08:40 - 18:33ADL Adelaide-SEA Seattle/Tacoma Intl

28h 23m2 stops Melbourne San Francisco

17:35 - 10:55SEA Seattle/Tacoma Intl-ADL Adelaide

46h 50m2 stops San Francisco Sydney Kingsford Smith

$1,713United Airlines

Tue, 24 Nov - Tue, 15 Dec

08:40 - 18:33ADL Adelaide-SEA Seattle/Tacoma Intl

28h 23m2 stops Melbourne San Francisco

17:35 - 10:55SEA Seattle/Tacoma Intl-ADL Adelaide

46h 50m2 stops San Francisco Sydney Kingsford Smith

$1,714United Airlines

Tue, 24 Nov - Tue, 15 Dec

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

21h 47m2 stops Brisbane Vancouver Intl

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

37h 30m2 stops Vancouver Intl Sydney Kingsford Smith

$1,847Air Canada

Tue, 24 Nov - Tue, 15 Dec

19:45 - 08:45ADL Adelaide-SEA Seattle/Tacoma Intl

31h 30m2 stops Melbourne Hong Kong Intl

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

29h 35m1 stop Hong Kong Intl

$2,002Multiple Airlines

Wed, 11 Nov - Wed, 18 Nov

19:45 - 08:45ADL Adelaide-SEA Seattle/Tacoma Intl

31h 30m2 stops Melbourne Hong Kong Intl

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

29h 35m1 stop Hong Kong Intl

$2,023Cathay Pacific

Wed, 11 Nov - Wed, 18 Nov

10:15 - 07:05ADL Adelaide-SEA Seattle/Tacoma Intl

63h 20m1 stop Singapore Changi

08:40 - 17:20SEA Seattle/Tacoma Intl-ADL Adelaide

38h 10m1 stop Singapore Changi

$2,046Singapore Airlines

Wed, 11 Nov - Wed, 18 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

$2,176Cathay Pacific

Wed, 11 Nov - Wed, 18 Nov

11:50 - 23:32ADL Adelaide-SEA Seattle/Tacoma Intl

29h 12m2 stops Sydney Kingsford Smith Honolulu

07:00 - 22:35SEA Seattle/Tacoma Intl-ADL Adelaide

22h 05m2 stops Honolulu Sydney Kingsford Smith

$2,648Multiple Airlines

Tue, 13 Oct - Fri, 16 Oct

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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

21h 47m

2 stops

SEA09:27Seattle/Tacoma Intl

15 Dec

SEA10:10Seattle/Tacoma Intl

30h 15m

2 stops

ADL10:55Adelaide

$1,670

Air Canada

11 Nov

ADL06:10Adelaide

21h 47m

2 stops

SEA09:27Seattle/Tacoma Intl

18 Nov

SEA19:05Seattle/Tacoma Intl

32h 55m

2 stops

ADL22:30Adelaide

$1,673

Air Canada

24 Nov

ADL06:10Adelaide

21h 47m

2 stops

SEA09:27Seattle/Tacoma Intl

15 Dec

SEA10:10Seattle/Tacoma Intl

37h 30m

2 stops

ADL18:10Adelaide

$1,847

Cathay Pacific flights from Adelaide to State of Washington

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

Cathay Pacific

11 Nov

ADL19:45Adelaide

31h 30m

2 stops

SEA08:45Seattle/Tacoma Intl

18 Nov

SEA10:25Seattle/Tacoma Intl

29h 35m

1 stop

ADL10:30Adelaide

$2,023

Cathay Pacific

11 Nov

ADL12:00Adelaide

39h 15m

1 stop

SEA08:45Seattle/Tacoma Intl

18 Nov

SEA10:25Seattle/Tacoma Intl

29h 35m

1 stop

ADL10:30Adelaide

$2,176

Cathay Pacific

13 Oct

ADL06:25Adelaide

45h 10m

2 stops

SEA10:05Seattle/Tacoma Intl

16 Oct

SEA06:10Seattle/Tacoma Intl

42h 05m

3 stops

ADL17:45Adelaide

$2,917

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

Tue 24/11

06:10-09:27

2 stops21h 47m

Seattle/Tacoma Intl

Tue 15/12

10:10-10:55

2 stops30h 15m

$1,670

AdelaideSeattle

ADL Adelaide - SEA Seattle/Tacoma Intl

ADLSEA

Adelaide

Wed 11/11

06:10-09:27

2 stops21h 47m

Seattle/Tacoma Intl

Wed 18/11

19:05-22:30

2 stops32h 55m

$1,673

AdelaideSeattle

ADL Adelaide - SEA Seattle/Tacoma Intl

ADLSEA

Adelaide

Tue 24/11

08:40-18:33

2 stops28h 23m

Seattle/Tacoma Intl

Tue 15/12

17:35-10:55

2 stops46h 50m

$1,713

AdelaideSeattle

ADL Adelaide - SEA Seattle/Tacoma Intl

ADLSEA

Adelaide

Tue 24/11

08:40-18:33

2 stops28h 23m

Seattle/Tacoma Intl

Tue 15/12

17:35-10:55

2 stops46h 50m

$1,714

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

10:10-18:10

2 stops37h 30m

$1,847

AdelaideSeattle

ADL Adelaide - SEA Seattle/Tacoma Intl

ADLSEA

Adelaide

Wed 11/11

19:45-08:45

2 stops31h 30m

Seattle/Tacoma Intl

Wed 18/11

10:25-10:30

1 stop29h 35m

$2,002

AdelaideSeattle

ADL Adelaide - SEA Seattle/Tacoma Intl

ADLSEA

Adelaide

Wed 11/11

19:45-08:45

2 stops31h 30m

Seattle/Tacoma Intl

Wed 18/11

10:25-10:30

1 stop29h 35m

$2,023

AdelaideSeattle

ADL Adelaide - SEA Seattle/Tacoma Intl

ADLSEA

Adelaide

Wed 11/11

10:15-07:05

1 stop63h 20m

Seattle/Tacoma Intl

Wed 18/11

08:40-17:20

1 stop38h 10m

$2,046

AdelaideSeattle

ADL Adelaide - SEA Seattle/Tacoma Intl

ADLSEA

Adelaide

Wed 11/11

12:00-08:45

1 stop39h 15m

Seattle/Tacoma Intl

Wed 18/11

10:25-10:30

1 stop29h 35m

$2,176

Fastest return journey

AdelaideSeattle

ADL Adelaide - SEA Seattle/Tacoma Intl

ADLSEA

Adelaide

Tue 13/10

11:50-23:32

2 stops29h 12m

Seattle/Tacoma Intl

Fri 16/10

07:00-22:35

2 stops22h 05m

$2,648

Flights are sorted by cheapest return flights first.

Showing 1-10 of 13 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

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.

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	$3,707
Fastest flight time	21h 53m
Direct flights	None

The best one-way flight to State of Washington from Adelaide in the past 72 hours is $3,707. The best return flight deal from Adelaide to State of Washington found on momondo in the last 72 hours is $1,670.

The fastest flight from Adelaide to State of Washington takes 21h 53m

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.