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

Qantas Airways, China Airlines, and Air New Zealand are the most popular carriers operating from Adelaide to Washington

Which airlines fly to State of Washington?

Virgin Australia, Qantas Airways and United Airlines are the top three most popular airlines that fly to State of Washington from Adelaide according to our data. Virgin Australia is the first choice among our users, with 31% of people opting to fly with this airline when travelling to State of Washington. Keep in mind that there are 5 different airlines that fly to State of Washington on a routine basis, so you have a few additional options to choose from.

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 February 2026, there are 5 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.

$982 Cheap Flights from Adelaide to Washington in 2026

1 adult

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Find the cheapest flights from Adelaide to Washington

Round-trip

One-way

Cheap return flights

Enter your travel dates to find the best prices.

17:10 - 23:41

ADL

SEA

23h 01m

2 stops

18:58 - 11:55

SEA

ADL

24h 27m

2 stops

$1,582Qantas Airways

Tue, 21 Jul - Wed, 5 Aug

13:25 - 23:41

ADL

SEA

26h 46m

2 stops

18:58 - 11:55

SEA

ADL

24h 27m

2 stops

$1,686Qantas Airways

Tue, 21 Jul - Wed, 5 Aug

12:05 - 21:52

ADL

PDX

27h 17m

2 stops

14:35 - 16:25

PDX

ADL

32h 20m

2 stops

$1,723Qantas Airways

Fri, 20 Mar - Fri, 27 Mar

12:40 - 23:41

ADL

SEA

27h 31m

2 stops

14:32 - 11:15

SEA

ADL

28h 13m

2 stops

$1,744Qantas Airways

Tue, 21 Jul - Wed, 5 Aug

06:05 - 14:46

ADL

SEA

25h 11m

2 stops

19:05 - 13:45

SEA

ADL

26h 10m

2 stops

$1,750United Airlines

Tue, 28 Apr - Mon, 25 May

13:25 - 22:58

ADL

SEA

50h 03m

2 stops

15:40 - 09:25

SEA

ADL

49h 15m

2 stops

$1,751American Airlines

Wed, 29 Apr - Sun, 24 May

06:00 - 10:39

ADL

SEA

21h 09m

2 stops

18:58 - 13:45

SEA

ADL

26h 17m

2 stops

$1,759United Airlines

Wed, 29 Apr - Wed, 20 May

17:35 - 08:45

ADL

SEA

55h 40m

1 stop

10:15 - 16:20

SEA

ADL

37h 35m

1 stop

$1,786Singapore Airlines

Fri, 1 May - Fri, 22 May

13:25 - 18:07

ADL

SEA

45h 12m

2 stops

07:00 - 09:25

SEA

ADL

33h 55m

2 stops

$1,801American Airlines

Wed, 29 Apr - Thu, 21 May

17:10 - 05:28

ADL

PDX

29h 48m

2 stops

13:35 - 22:35

PDX

ADL

39h 30m

3 stops

$2,646Multiple Airlines

Fri, 20 Mar - Fri, 27 Mar

Cathay Pacific flights from Adelaide to State of Washington

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

Cathay Pacific

16 July

ADL19:45Adelaide

42h 20m

3 stops

SEA21:35Seattle/Tacoma Intl

30 July

SEA12:25Seattle/Tacoma Intl

35h 30m

2 stops

ADL16:25Adelaide

$2,390

Cathay Pacific

20 Mar

ADL06:00Adelaide

35h 28m

3 stops

PDX23:58Portland

27 Mar

PDX07:05Portland

42h 30m

3 stops

ADL19:05Adelaide

$2,724

Qantas Airways flights from Adelaide to State of Washington

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

Qantas Airways

21 July

ADL17:10Adelaide

23h 01m

2 stops

SEA23:41Seattle/Tacoma Intl

5 Aug

SEA18:58Seattle/Tacoma Intl

24h 27m

2 stops

ADL11:55Adelaide

$1,582

Qantas Airways

21 July

ADL13:25Adelaide

26h 46m

2 stops

SEA23:41Seattle/Tacoma Intl

5 Aug

SEA18:58Seattle/Tacoma Intl

24h 27m

2 stops

ADL11:55Adelaide

$1,686

Qantas Airways

20 Mar

ADL12:05Adelaide

27h 17m

2 stops

PDX21:52Portland

27 Mar

PDX14:35Portland

32h 20m

2 stops

ADL16:25Adelaide

$1,723

Fly from

Fly to

Route

Depart

Return

Price

AdelaideSeattle

ADL - SEA

ADLSEA

Adelaide

Tue 21/7

17:10-23:41

2 stops23h 01m

Seattle/Tacoma Intl

Wed 5/8

18:58-11:55

2 stops24h 27m

$1,582

AdelaideSeattle

ADL - SEA

ADLSEA

Adelaide

Tue 21/7

13:25-23:41

2 stops26h 46m

Seattle/Tacoma Intl

Wed 5/8

18:58-11:55

2 stops24h 27m

$1,686

AdelaidePortland

ADL - PDX

ADLPDX

Adelaide

Fri 20/3

12:05-21:52

2 stops27h 17m

Portland

Fri 27/3

14:35-16:25

2 stops32h 20m

$1,723

AdelaideSeattle

ADL - SEA

ADLSEA

Adelaide

Tue 21/7

12:40-23:41

2 stops27h 31m

Seattle/Tacoma Intl

Wed 5/8

14:32-11:15

2 stops28h 13m

$1,744

AdelaideSeattle

ADL - SEA

ADLSEA

Adelaide

Tue 28/4

06:05-14:46

2 stops25h 11m

Seattle/Tacoma Intl

Mon 25/5

19:05-13:45

2 stops26h 10m

$1,750

AdelaideSeattle

ADL - SEA

ADLSEA

Adelaide

Wed 29/4

13:25-22:58

2 stops50h 03m

Seattle/Tacoma Intl

Sun 24/5

15:40-09:25

2 stops49h 15m

$1,751

AdelaideSeattle

ADL - SEA

ADLSEA

Adelaide

Wed 29/4

06:00-10:39

2 stops21h 09m

Seattle/Tacoma Intl

Wed 20/5

18:58-13:45

2 stops26h 17m

$1,759

AdelaideSeattle

ADL - SEA

ADLSEA

Adelaide

Fri 1/5

17:35-08:45

1 stop55h 40m

Seattle/Tacoma Intl

Fri 22/5

10:15-16:20

1 stop37h 35m

$1,786

AdelaideSeattle

ADL - SEA

ADLSEA

Adelaide

Wed 29/4

13:25-18:07

2 stops45h 12m

Seattle/Tacoma Intl

Thu 21/5

07:00-09:25

2 stops33h 55m

$1,800

AdelaidePortland

ADL - PDX

ADLPDX

Adelaide

Fri 20/3

17:10-05:28

2 stops29h 48m

Portland

Fri 27/3

13:35-22:35

3 stops39h 30m

$2,646

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 8% 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	18h 23m
Direct flights	None

The fastest flight from Adelaide to State of Washington takes 18h 23m

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

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 February 2026, there are 5 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 New Zealand	PriceFrom $868	Free cancellation	Rating 8.0 593 reviews	Search Air New Zealand flights
Air Canada	PriceFrom $1,180	Free cancellation	Rating 7.1 10,734 reviews	Search Air Canada flights
Qantas Airways	PriceFrom $1,269	Free cancellation	Rating 7.5 995 reviews	Search Qantas Airways flights
United Airlines	PriceFrom $1,492	Free cancellation	Rating 7.4 9,336 reviews	Search United Airlines flights
Virgin Australia	PriceFrom $1,602	Free cancellation	Rating 7.5 440 reviews	Search Virgin Australia 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.