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 36% 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.

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

Singapore Airlines and Qantas Airways 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 October 2025, 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.

$1,040 Cheap Flights from Adelaide to Washington in 2025/26

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19:55 - 14:31ADL-SEA

37h 06m2 stops

20:00 - 13:55SEA-ADL

47h 25m2 stops

$1,591Air Canada

Find Deal

Wed, 3 Dec - Wed, 10 Dec

09:15 - 09:31ADL-SEA

42h 46m2 stops

20:00 - 13:55SEA-ADL

47h 25m2 stops

$1,610Multiple Airlines

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Wed, 3 Dec - Wed, 10 Dec

13:55 - 16:14ADL-SEA

19h 49m1 stop

19:10 - 08:30SEA-ADL

43h 50m2 stops

$1,639United Airlines

Find Deal

Wed, 11 Mar - Sun, 15 Mar

13:55 - 16:14ADL-SEA

19h 49m1 stop

19:10 - 08:30SEA-ADL

43h 50m2 stops

$1,643United Airlines

Find Deal

Wed, 11 Mar - Sun, 15 Mar

06:25 - 18:49ADL-SEA

29h 54m2 stops

19:19 - 09:50SEA-ADL

45h 01m2 stops

$1,690American Airlines

Find Deal

Wed, 11 Mar - Sun, 15 Mar

06:25 - 18:49ADL-SEA

29h 54m2 stops

19:19 - 09:50SEA-ADL

45h 01m2 stops

$1,694American Airlines

Find Deal

Wed, 11 Mar - Sun, 15 Mar

06:10 - 09:15ADL-PDX

20h 35m2 stops

09:50 - 13:55PDX-ADL

34h 35m2 stops

$1,734Air Canada

Find Deal

Thu, 12 Mar - Sun, 15 Mar

10:15 - 08:10ADL-SEA

39h 25m1 stop

09:45 - 08:50SEA-ADL

29h 35m1 stop

$1,919Singapore Airlines

Find Deal

Wed, 11 Mar - Sun, 15 Mar

10:15 - 08:10ADL-SEA

39h 25m1 stop

09:45 - 08:50SEA-ADL

29h 35m1 stop

$1,924Singapore Airlines

Find Deal

Wed, 11 Mar - Sun, 15 Mar

07:50 - 20:23ADL-SEA

31h 03m2 stops

14:50 - 15:45SEA-ADL

30h 25m2 stops

$1,973Qantas Airways

Find Deal

Mon, 24 Nov - Thu, 25 Dec

Air Canada flights from Adelaide to State of Washington

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

Air Canada

3 Dec

ADL19:55Adelaide

37h 06m

2 stops

SEA14:31Seattle/Tacoma Intl

10 Dec

SEA20:00Seattle/Tacoma Intl

47h 25m

2 stops

ADL13:55Adelaide

$1,591

Find similar

Air Canada

12 Mar

ADL06:10Adelaide

20h 35m

2 stops

PDX09:15Portland

15 Mar

PDX09:50Portland

34h 35m

2 stops

ADL13:55Adelaide

$1,734

Find similar

Air Canada

12 Mar

ADL06:10Adelaide

29h 50m

2 stops

PDX18:30Portland

15 Mar

PDX09:50Portland

34h 35m

2 stops

ADL13:55Adelaide

$1,739

Find similar

United Airlines flights from Adelaide to State of Washington

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

United Airlines

11 Mar

ADL13:55Adelaide

19h 49m

1 stop

SEA16:14Seattle/Tacoma Intl

15 Mar

SEA19:10Seattle/Tacoma Intl

43h 50m

2 stops

ADL08:30Adelaide

$1,639

Find similar

United Airlines

11 Mar

ADL13:55Adelaide

19h 49m

1 stop

SEA16:14Seattle/Tacoma Intl

15 Mar

SEA19:10Seattle/Tacoma Intl

43h 50m

2 stops

ADL08:30Adelaide

$1,643

Find similar

United Airlines

24 Nov

ADL06:00Adelaide

35h 00m

2 stops

SEA22:30Seattle/Tacoma Intl

25 Dec

SEA19:12Seattle/Tacoma Intl

19h 48m

1 stop

ADL09:30Adelaide

$2,039

Find similar

Fly from

Fly to

Route

Depart

Return

Price

AdelaideSeattle

ADL - SEA

ADLSEA

Adelaide

Wed 3/12

19:55-14:31

2 stops37h 06m

Seattle/Tacoma Intl

Wed 10/12

20:00-13:55

2 stops47h 25m

$1,591

AdelaideSeattle

ADL - SEA

ADLSEA

Adelaide

Wed 3/12

09:15-09:31

2 stops42h 46m

Seattle/Tacoma Intl

Wed 10/12

20:00-13:55

2 stops47h 25m

$1,610

AdelaideSeattle

ADL - SEA

ADLSEA

Adelaide

Wed 11/3

13:55-16:14

1 stop19h 49m

Seattle/Tacoma Intl

Sun 15/3

19:10-08:30

2 stops43h 50m

$1,639

AdelaideSeattle

ADL - SEA

ADLSEA

Adelaide

Wed 11/3

13:55-16:14

1 stop19h 49m

Seattle/Tacoma Intl

Sun 15/3

19:10-08:30

2 stops43h 50m

$1,643

AdelaideSeattle

ADL - SEA

ADLSEA

Adelaide

Wed 11/3

06:25-18:49

2 stops29h 54m

Seattle/Tacoma Intl

Sun 15/3

19:19-09:50

2 stops45h 01m

$1,690

AdelaideSeattle

ADL - SEA

ADLSEA

Adelaide

Wed 11/3

06:25-18:49

2 stops29h 54m

Seattle/Tacoma Intl

Sun 15/3

19:19-09:50

2 stops45h 01m

$1,694

AdelaidePortland

ADL - PDX

ADLPDX

Adelaide

Thu 12/3

06:10-09:15

2 stops20h 35m

Portland

Sun 15/3

09:50-13:55

2 stops34h 35m

$1,734

AdelaideSeattle

ADL - SEA

ADLSEA

Adelaide

Wed 11/3

10:15-08:10

1 stop39h 25m

Seattle/Tacoma Intl

Sun 15/3

09:45-08:50

1 stop29h 35m

$1,919

AdelaideSeattle

ADL - SEA

ADLSEA

Adelaide

Wed 11/3

10:15-08:10

1 stop39h 25m

Seattle/Tacoma Intl

Sun 15/3

09:45-08:50

1 stop29h 35m

$1,924

AdelaideSeattle

ADL - SEA

ADLSEA

Adelaide

Mon 24/11

07:50-20:23

2 stops31h 03m

Seattle/Tacoma Intl

Thu 25/12

14:50-15:45

2 stops30h 25m

$1,973

Flights are sorted by cheapest return flights first.

Showing 1-10 of 18 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 November is, on average, the cheapest month to fly to State of Washington from Adelaide, with most prices found around $1,468. If you aren’t able to travel during the month of November, then book flights to State of Washington from Adelaide during January instead. Flights to State of Washington in January, while not as cheap as those in November, still average around $1,659.

What is the cheapest day to depart on your flight to State of Washington?

The cheapest day to depart on your flight to State of Washington is on a Tuesday when prices can be found for as low as $1,618. This is often the case because there is less demand to fly during this day of the week. Be sure to avoid booking your departure on a Sunday as prices are generally higher than usual. According to our data, the average ticket price to State of Washington on Sunday is $2,349.

What is the cheapest time of day to depart on your flight to State of Washington?

In the afternoon is the cheapest time of day to fly from Adelaide to State of Washington when you can find flight prices for as low as $1,799. Flying to State of Washington in the afternoon is an ideal time because this is during off-peak travel hours. Flights at midday are often more expensive, with an average ticket price of $2,412.

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

Direct flights	None

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 October 2025, 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 $943	Free cancellation	Rating 8.0 516 reviews	Search Air New Zealand flights
Qantas Airways	PriceFrom $1,379	Free cancellation	Rating 7.5 922 reviews	Search Qantas Airways flights
Singapore Airlines	PriceFrom $1,431	Free cancellation	Rating 8.1 1,383 reviews	Search Singapore Airlines flights
Air Canada	PriceFrom $1,483	Free cancellation	Rating 7.1 10,331 reviews	Search Air Canada flights
Virgin Australia	PriceFrom $1,741	Free cancellation	Rating 7.6 421 reviews	Search Virgin Australia flights
United Airlines	PriceFrom $1,753	Free cancellation	Rating 7.4 8,994 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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Popular Cities in Washington

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Cheap flights from Adelaide to Washington from $1,040

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 15/11. 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

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Filter for what you want

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Find the cheapest flights from Adelaide to Washington

Cheap return flights

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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

United Airlines flights from Adelaide to State of Washington

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

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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?

What is the cheapest day to depart on your flight to State of Washington?

What is the cheapest time of day to depart on your flight 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?

Singapore Airlines and Qantas Airways 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

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