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

Air Canada is the most popular carrier 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.

$888 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 - 23:59ADL Adelaide-PDX Portland

27h 04m2 stops Sydney Kingsford Smith Los Angeles

17:55 - 11:55PDX Portland-ADL Adelaide

25h 30m2 stops Los Angeles Sydney Kingsford Smith

$1,736Qantas Airways

Tue, 25 Aug - Tue, 1 Sep

06:00 - 18:36ADL Adelaide-SEA Seattle/Tacoma Intl

29h 06m3 stops Sydney Kingsford Smith San Francisco Los Angeles

10:57 - 10:55SEA Seattle/Tacoma Intl-ADL Adelaide

31h 28m3 stops Las Vegas Harry Reid Intl Los Angeles Sydney Kingsford Smith

$1,841Multiple Airlines

Tue, 22 Sep - Tue, 29 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

$1,900Air 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

$1,902Air Canada

Tue, 24 Nov - Tue, 15 Dec

06:00 - 22:59ADL Adelaide-SEA Seattle/Tacoma Intl

33h 29m3 stops Sydney Kingsford Smith San Francisco Los Angeles

13:13 - 13:55SEA Seattle/Tacoma Intl-ADL Adelaide

32h 12m2 stops Los Angeles Sydney Kingsford Smith

$1,907Multiple Airlines

Tue, 22 Sep - Tue, 29 Sep

06:10 - 21:57ADL Adelaide-SEA Seattle/Tacoma Intl

34h 17m2 stops Brisbane Vancouver Intl

08:15 - 10:55SEA Seattle/Tacoma Intl-ADL Adelaide

32h 10m2 stops Vancouver Intl Sydney Kingsford Smith

$1,961Air Canada

Tue, 24 Nov - Tue, 15 Dec

20:00 - 20:36ADL Adelaide-PDX Portland

41h 06m2 stops Sydney Kingsford Smith Los Angeles

15:33 - 15:55PDX Portland-ADL Adelaide

31h 52m2 stops Los Angeles Sydney Kingsford Smith

$2,069Multiple Airlines

Thu, 24 Sep - Thu, 1 Oct

16:30 - 21:55ADL Adelaide-PDX Portland

45h 55m2 stops Sydney Kingsford Smith Los Angeles

07:30 - 13:55PDX Portland-ADL Adelaide

37h 55m3 stops Santa Rosa Sonoma County Los Angeles Sydney Kingsford Smith

$2,133Multiple Airlines

Thu, 24 Sep - Thu, 1 Oct

20:00 - 18:32ADL Adelaide-SEA Seattle/Tacoma Intl

39h 02m2 stops Sydney Kingsford Smith Vancouver Intl

19:15 - 13:55SEA Seattle/Tacoma Intl-ADL Adelaide

26h 10m2 stops Vancouver Intl Sydney Kingsford Smith

$2,362Air Canada

Wed, 23 Sep - Wed, 30 Sep

18:20 - 07:10ADL Adelaide-SEA Seattle/Tacoma Intl

31h 20m2 stops Perth Singapore Changi

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

38h 05m1 stop Singapore Changi

$2,406Singapore Airlines

Tue, 24 Nov - Tue, 15 Dec

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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

30h 42m

2 stops

SEA18:22Seattle/Tacoma Intl

15 Dec

SEA15:15Seattle/Tacoma Intl

25h 10m

2 stops

ADL10:55Adelaide

$1,900

Air Canada

24 Nov

ADL06:10Adelaide

30h 42m

2 stops

SEA18:22Seattle/Tacoma Intl

15 Dec

SEA15:15Seattle/Tacoma Intl

25h 10m

2 stops

ADL10:55Adelaide

$1,902

Air Canada

24 Nov

ADL06:10Adelaide

34h 17m

2 stops

SEA21:57Seattle/Tacoma Intl

15 Dec

SEA08:15Seattle/Tacoma Intl

32h 10m

2 stops

ADL10:55Adelaide

$1,961

Singapore Airlines flights from Adelaide to State of Washington

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

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

$2,406

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

$2,412

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

$2,417

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

Fastest return journey

AdelaidePortland

ADL Adelaide - PDX Portland

ADLPDX

Adelaide

Tue 25/8

13:25-23:59

2 stops27h 04m

Portland

Tue 1/9

17:55-11:55

2 stops25h 30m

$1,736

AdelaideSeattle

ADL Adelaide - SEA Seattle/Tacoma Intl

ADLSEA

Adelaide

Tue 22/9

06:00-18:36

3 stops29h 06m

Seattle/Tacoma Intl

Tue 29/9

10:57-10:55

3 stops31h 28m

$1,841

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

$1,900

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

$1,902

AdelaideSeattle

ADL Adelaide - SEA Seattle/Tacoma Intl

ADLSEA

Adelaide

Tue 22/9

06:00-22:59

3 stops33h 29m

Seattle/Tacoma Intl

Tue 29/9

13:13-13:55

2 stops32h 12m

$1,907

AdelaideSeattle

ADL Adelaide - SEA Seattle/Tacoma Intl

ADLSEA

Adelaide

Tue 24/11

06:10-21:57

2 stops34h 17m

Seattle/Tacoma Intl

Tue 15/12

08:15-10:55

2 stops32h 10m

$1,961

AdelaidePortland

ADL Adelaide - PDX Portland

ADLPDX

Adelaide

Thu 24/9

20:00-20:36

2 stops41h 06m

Portland

Thu 1/10

15:33-15:55

2 stops31h 52m

$2,069

AdelaidePortland

ADL Adelaide - PDX Portland

ADLPDX

Adelaide

Thu 24/9

16:30-21:55

2 stops45h 55m

Portland

Thu 1/10

07:30-13:55

3 stops37h 55m

$2,133

AdelaideSeattle

ADL Adelaide - SEA Seattle/Tacoma Intl

ADLSEA

Adelaide

Wed 23/9

20:00-18:32

2 stops39h 02m

Seattle/Tacoma Intl

Wed 30/9

19:15-13:55

2 stops26h 10m

$2,362

AdelaideSeattle

ADL Adelaide - SEA Seattle/Tacoma Intl

ADLSEA

Adelaide

Tue 24/11

18:20-07:10

2 stops31h 20m

Seattle/Tacoma Intl

Tue 15/12

08:45-17:20

1 stop38h 05m

$2,406

Flights are sorted by cheapest return flights first.

Showing 1-10 of 15 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 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	27h 04m
Direct flights	None

The fastest flight from Adelaide to State of Washington takes 27h 04m

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 $1,180	Free cancellation	Rating 7.1 11,458 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.