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

Cathay Pacific 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 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.

$1,676 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

Last minute

Cheap return flights

Enter your travel dates to find the best prices.

18:35 - 07:10

ADL

SEA

31h 05m

1 stop

08:45 - 17:20

SEA

ADL

62h 05m

1 stop

$1,676Singapore Airlines

Mon, 2 Nov - Fri, 6 Nov

18:35 - 08:10

ADL

SEA

31h 05m

1 stop

08:45 - 17:20

SEA

ADL

38h 05m

1 stop

$1,690Singapore Airlines

Sat, 31 Oct - Sat, 21 Nov

06:25 - 21:58

ADL

SEA

32h 03m

2 stops

18:10 - 11:05

SEA

ADL

24h 25m

2 stops

$1,743Qantas Airways

Wed, 5 Aug - Tue, 18 Aug

20:00 - 23:59

ADL

SEA

44h 29m

2 stops

21:09 - 22:35

SEA

ADL

32h 56m

2 stops

$1,744Multiple Airlines

Wed, 12 Aug - Tue, 18 Aug

12:40 - 15:33

ADL

SEA

43h 23m

2 stops

18:10 - 11:05

SEA

ADL

24h 25m

2 stops

$1,747Qantas Airways

Tue, 11 Aug - Tue, 18 Aug

19:00 - 11:52

ADL

SEA

34h 22m

2 stops

12:57 - 10:55

SEA

ADL

27h 28m

2 stops

$1,774Qantas Airways

Sun, 1 Nov - Sat, 21 Nov

19:55 - 21:28

ADL

SEA

44h 03m

2 stops

13:46 - 08:15

SEA

ADL

47h 59m

2 stops

$1,803Multiple Airlines

Mon, 2 Nov - Fri, 6 Nov

18:35 - 08:10

ADL

SEA

55h 05m

1 stop

08:45 - 17:20

SEA

ADL

38h 05m

1 stop

$1,804Singapore Airlines

Sun, 1 Nov - Sat, 21 Nov

08:40 - 23:16

ADL

SEA

33h 06m

2 stops

17:30 - 16:20

SEA

ADL

28h 20m

2 stops

$1,810Virgin Australia

Tue, 24 Nov - Tue, 15 Dec

08:40 - 18:31

ADL

SEA

28h 21m

2 stops

10:45 - 16:20

SEA

ADL

35h 05m

2 stops

$1,811United Airlines

Thu, 5 Nov - Mon, 9 Nov

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United Airlines flights from Adelaide to State of Washington

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

United Airlines

5 Nov

ADL08:40Adelaide

28h 21m

2 stops

SEA18:31Seattle/Tacoma Intl

9 Nov

SEA10:45Seattle/Tacoma Intl

35h 05m

2 stops

ADL16:20Adelaide

$1,811

United Airlines

2 Nov

ADL06:10Adelaide

35h 36m

2 stops

SEA23:16Seattle/Tacoma Intl

30 Nov

SEA15:27Seattle/Tacoma Intl

30h 23m

2 stops

ADL16:20Adelaide

$1,813

United Airlines

5 Nov

ADL08:40Adelaide

28h 21m

2 stops

SEA18:31Seattle/Tacoma Intl

9 Nov

SEA10:45Seattle/Tacoma Intl

35h 05m

2 stops

ADL16:20Adelaide

$1,817

Qatar Airways flights from Adelaide to State of Washington

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

Qatar Airways

21 July

ADL22:00Adelaide

31h 15m

1 stop

SEA12:45Seattle/Tacoma Intl

5 Aug

SEA16:25Seattle/Tacoma Intl

30h 05m

1 stop

ADL15:00Adelaide

$3,391

Qatar Airways

21 July

ADL22:00Adelaide

31h 15m

1 stop

SEA12:45Seattle/Tacoma Intl

5 Aug

SEA16:25Seattle/Tacoma Intl

30h 05m

1 stop

ADL15:00Adelaide

$3,395

Qatar Airways

21 July

ADL22:00Adelaide

31h 15m

1 stop

SEA12:45Seattle/Tacoma Intl

5 Aug

SEA16:25Seattle/Tacoma Intl

30h 05m

1 stop

ADL15:00Adelaide

$3,400

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

AdelaideSeattle

ADL - SEA

ADLSEA

Adelaide

Mon 2/11

18:35-07:10

1 stop31h 05m

Seattle/Tacoma Intl

Fri 6/11

08:45-17:20

1 stop62h 05m

$1,676

AdelaideSeattle

ADL - SEA

ADLSEA

Adelaide

Sat 31/10

18:35-08:10

1 stop31h 05m

Seattle/Tacoma Intl

Sat 21/11

08:45-17:20

1 stop38h 05m

$1,690

Fastest return journey

AdelaideSeattle

ADL - SEA

ADLSEA

Adelaide

Wed 5/8

06:25-21:58

2 stops32h 03m

Seattle/Tacoma Intl

Tue 18/8

18:10-11:05

2 stops24h 25m

$1,743

AdelaideSeattle

ADL - SEA

ADLSEA

Adelaide

Wed 12/8

20:00-23:59

2 stops44h 29m

Seattle/Tacoma Intl

Tue 18/8

21:09-22:35

2 stops32h 56m

$1,744

AdelaideSeattle

ADL - SEA

ADLSEA

Adelaide

Tue 11/8

12:40-15:33

2 stops43h 23m

Seattle/Tacoma Intl

Tue 18/8

18:10-11:05

2 stops24h 25m

$1,747

AdelaideSeattle

ADL - SEA

ADLSEA

Adelaide

Sun 1/11

19:00-11:52

2 stops34h 22m

Seattle/Tacoma Intl

Sat 21/11

12:57-10:55

2 stops27h 28m

$1,774

AdelaideSeattle

ADL - SEA

ADLSEA

Adelaide

Mon 2/11

19:55-21:28

2 stops44h 03m

Seattle/Tacoma Intl

Fri 6/11

13:46-08:15

2 stops47h 59m

$1,803

AdelaideSeattle

ADL - SEA

ADLSEA

Adelaide

Sun 1/11

18:35-08:10

1 stop55h 05m

Seattle/Tacoma Intl

Sat 21/11

08:45-17:20

1 stop38h 05m

$1,804

AdelaideSeattle

ADL - SEA

ADLSEA

Adelaide

Tue 24/11

08:40-23:16

2 stops33h 06m

Seattle/Tacoma Intl

Tue 15/12

17:30-16:20

2 stops28h 20m

$1,810

AdelaideSeattle

ADL - SEA

ADLSEA

Adelaide

Thu 5/11

08:40-18:31

2 stops28h 21m

Seattle/Tacoma Intl

Mon 9/11

10:45-16:20

2 stops35h 05m

$1,811

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	22h 10m
Direct flights	None

The fastest flight from Adelaide to State of Washington takes 22h 10m

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 $1,191	Free cancellation	Rating 7.1 11,346 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.