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

United Airlines and Singapore Airlines are the most popular carriers operating from Adelaide to Washington

Which airlines fly to State of Washington?

Virgin Australia, Qantas Airways and Singapore 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 6 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 January 2026, there are 6 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.

$1,100 Cheap Flights from Adelaide to Washington in 2026

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14:55 - 11:49

ADL

SEA

39h 24m2 stops

23:59 - 09:30

SEA

ADL

63h 01m2 stops

$1,530United Airlines

Sat, 21 Feb - Sat, 28 Feb

12:35 - 17:13

ADL

PDX

23h 08m2 stops

17:43 - 13:40

PDX

ADL

25h 27m2 stops

$1,562Multiple Airlines

Thu, 19 Feb - Thu, 26 Feb

14:55 - 23:30

ADL

SEA

27h 05m1 stop

12:32 - 09:30

SEA

ADL

26h 28m1 stop

$1,605United Airlines

Sat, 21 Feb - Sat, 28 Feb

11:55 - 16:41

ADL

PDX

23h 16m2 stops

14:47 - 10:55

PDX

ADL

25h 38m2 stops

$1,634Multiple Airlines

Fri, 20 Feb - Fri, 27 Feb

07:15 - 22:59

ADL

PDX

34h 14m2 stops

13:40 - 09:30

PDX

ADL

25h 20m1 stop

$1,833United Airlines

Thu, 19 Feb - Thu, 26 Feb

06:00 - 18:55

ADL

PDX

31h 25m3 stops

13:18 - 09:30

PDX

ADL

25h 42m2 stops

$1,842United Airlines

Thu, 19 Feb - Thu, 26 Feb

06:10 - 22:06

ADL

SEA

33h 26m2 stops

20:00 - 13:55

SEA

ADL

24h 25m2 stops

$1,947Air Canada

Thu, 19 Mar - Mon, 23 Mar

06:10 - 09:31

ADL

SEA

20h 51m2 stops

10:05 - 13:55

SEA

ADL

34h 20m2 stops

$1,949Air Canada

Thu, 19 Mar - Mon, 23 Mar

12:05 - 18:07

ADL

SEA

22h 32m2 stops

09:02 - 10:55

SEA

ADL

33h 23m2 stops

$2,030Air New Zealand

Mon, 15 Jun - Mon, 29 Jun

17:35 - 08:45

ADL

SEA

31h 40m1 stop

10:15 - 07:25

SEA

ADL

28h 40m1 stop

$2,048Singapore Airlines

Fri, 12 Jun - Fri, 26 Jun

Air Canada flights from Adelaide to State of Washington

Our best Air Canada deals on Adelaide to State of Washington flight tickets

Air Canada

19 Mar

ADL06:10Adelaide

33h 26m

2 stops

SEA22:06Seattle/Tacoma Intl

23 Mar

SEA20:00Seattle/Tacoma Intl

24h 25m

2 stops

ADL13:55Adelaide

$1,947

Find similar

Air Canada

19 Mar

ADL06:10Adelaide

20h 51m

2 stops

SEA09:31Seattle/Tacoma Intl

23 Mar

SEA10:05Seattle/Tacoma Intl

34h 20m

2 stops

ADL13:55Adelaide

$1,949

Find similar

Air Canada

19 Mar

ADL06:10Adelaide

20h 51m

2 stops

SEA09:31Seattle/Tacoma Intl

23 Mar

SEA20:00Seattle/Tacoma Intl

24h 25m

2 stops

ADL13:55Adelaide

$1,958

Find similar

Virgin Australia flights from Adelaide to State of Washington

Our best Virgin Australia deals on Adelaide to State of Washington flight tickets

Virgin Australia

19 Mar

ADL06:10Adelaide

27h 34m

2 stops

SEA16:14Seattle/Tacoma Intl

23 Mar

SEA12:36Seattle/Tacoma Intl

26h 24m

1 stop

ADL08:30Adelaide

$2,668

Find similar

Virgin Australia

19 Mar

ADL06:10Adelaide

27h 34m

2 stops

SEA16:14Seattle/Tacoma Intl

23 Mar

SEA12:36Seattle/Tacoma Intl

26h 24m

1 stop

ADL08:30Adelaide

$2,671

Find similar

Virgin Australia

19 Mar

ADL06:10Adelaide

27h 34m

2 stops

SEA16:14Seattle/Tacoma Intl

23 Mar

SEA12:36Seattle/Tacoma Intl

26h 24m

1 stop

ADL08:30Adelaide

$2,683

Find similar

Fly from

Fly to

Route

Depart

Return

Price

AdelaideSeattle

ADL - SEA

ADLSEA

Adelaide

Sat 21/2

14:55-11:49

2 stops39h 24m

Seattle/Tacoma Intl

Sat 28/2

23:59-09:30

2 stops63h 01m

$1,530

AdelaidePortland

ADL - PDX

ADLPDX

Adelaide

Thu 19/2

12:35-17:13

2 stops23h 08m

Portland

Thu 26/2

17:43-13:40

2 stops25h 27m

$1,562

AdelaideSeattle

ADL - SEA

ADLSEA

Adelaide

Sat 21/2

14:55-23:30

1 stop27h 05m

Seattle/Tacoma Intl

Sat 28/2

12:32-09:30

1 stop26h 28m

$1,605

AdelaidePortland

ADL - PDX

ADLPDX

Adelaide

Fri 20/2

11:55-16:41

2 stops23h 16m

Portland

Fri 27/2

14:47-10:55

2 stops25h 38m

$1,634

AdelaidePortland

ADL - PDX

ADLPDX

Adelaide

Thu 19/2

07:15-22:59

2 stops34h 14m

Portland

Thu 26/2

13:40-09:30

1 stop25h 20m

$1,833

AdelaidePortland

ADL - PDX

ADLPDX

Adelaide

Thu 19/2

06:00-18:55

3 stops31h 25m

Portland

Thu 26/2

13:18-09:30

2 stops25h 42m

$1,842

AdelaideSeattle

ADL - SEA

ADLSEA

Adelaide

Thu 19/3

06:10-22:06

2 stops33h 26m

Seattle/Tacoma Intl

Mon 23/3

20:00-13:55

2 stops24h 25m

$1,947

AdelaideSeattle

ADL - SEA

ADLSEA

Adelaide

Thu 19/3

06:10-09:31

2 stops20h 51m

Seattle/Tacoma Intl

Mon 23/3

10:05-13:55

2 stops34h 20m

$1,949

AdelaideSeattle

ADL - SEA

ADLSEA

Adelaide

Mon 15/6

12:05-18:07

2 stops22h 32m

Seattle/Tacoma Intl

Mon 29/6

09:02-10:55

2 stops33h 23m

$2,030

AdelaideSeattle

ADL - SEA

ADLSEA

Adelaide

Fri 12/6

17:35-08:45

1 stop31h 40m

Seattle/Tacoma Intl

Fri 26/6

10:15-07:25

1 stop28h 40m

$2,048

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 January 2026, there are 6 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 $911	Free cancellation	Rating 8.0 565 reviews	Search Air New Zealand flights
Qantas Airways	PriceFrom $1,332	Free cancellation	Rating 7.5 967 reviews	Search Qantas Airways flights
Singapore Airlines	PriceFrom $1,382	Free cancellation	Rating 8.1 1,427 reviews	Search Singapore Airlines flights
Air Canada	PriceFrom $1,432	Free cancellation	Rating 7.1 10,600 reviews	Search Air Canada flights
Virgin Australia	PriceFrom $1,681	Free cancellation	Rating 7.6 430 reviews	Search Virgin Australia flights
United Airlines	PriceFrom $1,694	Free cancellation	Rating 7.4 9,138 reviews	Search United Airlines 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.

An easier way to manage your State of Washington trip

We make it super easy to schedule, organise and travel with friends or family. Trips is free – and available to use no matter where you book.

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Find better results for your trip to Washington

Popular Cities in Washington

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Cheap flights from Adelaide to Washington from $1,100

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Adelaide to Washington departing on 19/2. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.

Big names, great deals

Big names, great deals

Filter for what you want

Filter for what you want

Trusted and free

Trusted and free

Price Alerts

Price Alerts

Find the cheapest flights from Adelaide to Washington

Cheap return flights

Cheap one-way flights

Air Canada flights from Adelaide to State of Washington

Our best Air Canada deals on Adelaide to State of Washington flight tickets

Virgin Australia flights from Adelaide to State of Washington

Our best Virgin Australia deals on Adelaide to State of Washington flight tickets

momondo Fare Finder

Use the filters below to find and compare flights from Adelaide to Washington that are best for you.

See travel insights to Washington from

How to get the cheapest flight ticket from Adelaide to State of Washington

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.

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

United Airlines and Singapore Airlines are the most popular carriers operating from Adelaide to Washington

Which airlines fly to State of Washington?

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

Direct flights

When did momondo last update prices for flights from Adelaide Airport to Washington?

How many operators does momondo search for flights from Adelaide Airport to Washington?

How old do you have to be to fly from Adelaide Airport to Washington?

What documentation or ID do you need to fly to Washington?

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

Why use momondo?

Why should I use momondo to find a flight deal from Adelaide to Washington?

Can I find flights from Adelaide to Washington with flexible booking policies on momondo?

How can momondo help me find flights from Adelaide to Washington?

I’m not ready to book a flight from Adelaide to Washington right now. Can momondo alert me if prices change?

An easier way to manage your State of Washington trip

We make it super easy to schedule, organise and travel with friends or family. Trips is free – and available to use no matter where you book.

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.

Find better results for your trip to Washington

Popular Cities in Washington

Popular flights according to clicks in the last 7 days on momondo