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

Qantas Airways and United 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 33% 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 December 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.

$942 Cheap Flights from Adelaide to Washington in 2025/26

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Find the cheapest flights from Adelaide to Washington

Round-trip

One-way

Last minute

Cheap return flights

Enter your travel dates to find the best prices.

10:55 - 20:34

ADL

PDX

28h 09m2 stops

14:57 - 22:10

PDX

ADL

36h 43m2 stops

$1,499Multiple Airlines

Fri, 30 Jan - Fri, 6 Feb

07:50 - 14:19

ADL

SEA

24h 59m2 stops

15:57 - 13:00

SEA

ADL

26h 33m2 stops

$1,624Qantas Airways

Fri, 30 Jan - Fri, 6 Feb

16:10 - 19:58

ADL

SEA

22h 18m2 stops

16:50 - 19:35

SEA

ADL

33h 15m2 stops

$1,740Qantas Airways

Thu, 5 Mar - Mon, 9 Mar

06:05 - 16:41

ADL

PDX

29h 06m2 stops

17:39 - 18:00

PDX

ADL

30h 51m2 stops

$2,155Qantas Airways

Wed, 4 Mar - Sun, 8 Mar

18:35 - 07:10

ADL

SEA

31h 05m1 stop

08:45 - 08:50

SEA

ADL

29h 35m1 stop

$2,221Singapore Airlines

Fri, 30 Jan - Fri, 6 Feb

14:55 - 14:48

ADL

PDX

18h 23m1 stop

23:59 - 08:30

PDX

ADL

39h 01m2 stops

$2,372United Airlines

Wed, 4 Mar - Sun, 8 Mar

14:55 - 14:48

ADL

PDX

18h 23m1 stop

23:59 - 08:30

PDX

ADL

39h 01m2 stops

$2,375United Airlines

Wed, 4 Mar - Sun, 8 Mar

06:10 - 09:31

ADL

SEA

21h 51m2 stops

08:10 - 13:55

SEA

ADL

35h 15m3 stops

$2,426Air Canada

Fri, 30 Jan - Fri, 6 Feb

07:15 - 18:32

ADL

SEA

29h 47m2 stops

17:20 - 08:30

SEA

ADL

21h 40m1 stop

$2,682Virgin Australia

Thu, 5 Mar - Mon, 9 Mar

07:15 - 16:14

ADL

SEA

27h 29m2 stops

19:35 - 08:30

SEA

ADL

19h 25m1 stop

$2,687Virgin Australia

Thu, 5 Mar - Mon, 9 Mar

Qantas Airways flights from Adelaide to State of Washington

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

Qantas Airways

30 Jan

ADL07:50Adelaide

24h 59m

2 stops

SEA14:19Seattle/Tacoma Intl

6 Feb

SEA15:57Seattle/Tacoma Intl

26h 33m

2 stops

ADL13:00Adelaide

$1,624

Find similar

Qantas Airways

5 Mar

ADL16:10Adelaide

22h 18m

2 stops

SEA19:58Seattle/Tacoma Intl

9 Mar

SEA16:50Seattle/Tacoma Intl

33h 15m

2 stops

ADL19:35Adelaide

$1,740

Find similar

Qantas Airways

4 Mar

ADL06:05Adelaide

29h 06m

2 stops

PDX16:41Portland

8 Mar

PDX17:39Portland

30h 51m

2 stops

ADL18:00Adelaide

$2,155

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

5 Mar

ADL07:15Adelaide

29h 47m

2 stops

SEA18:32Seattle/Tacoma Intl

9 Mar

SEA17:20Seattle/Tacoma Intl

21h 40m

1 stop

ADL08:30Adelaide

$2,682

Find similar

Virgin Australia

5 Mar

ADL07:15Adelaide

27h 29m

2 stops

SEA16:14Seattle/Tacoma Intl

9 Mar

SEA19:35Seattle/Tacoma Intl

19h 25m

1 stop

ADL08:30Adelaide

$2,687

Find similar

Virgin Australia

5 Mar

ADL07:15Adelaide

29h 47m

2 stops

SEA18:32Seattle/Tacoma Intl

9 Mar

SEA17:20Seattle/Tacoma Intl

21h 40m

1 stop

ADL08:30Adelaide

$2,690

Find similar

Fly from

Fly to

Route

Depart

Return

Price

AdelaidePortland

ADL - PDX

ADLPDX

Adelaide

Fri 30/1

10:55-20:34

2 stops28h 09m

Portland

Fri 6/2

14:57-22:10

2 stops36h 43m

$1,499

AdelaideSeattle

ADL - SEA

ADLSEA

Adelaide

Fri 30/1

07:50-14:19

2 stops24h 59m

Seattle/Tacoma Intl

Fri 6/2

15:57-13:00

2 stops26h 33m

$1,624

AdelaideSeattle

ADL - SEA

ADLSEA

Adelaide

Thu 5/3

16:10-19:58

2 stops22h 18m

Seattle/Tacoma Intl

Mon 9/3

16:50-19:35

2 stops33h 15m

$1,740

AdelaidePortland

ADL - PDX

ADLPDX

Adelaide

Wed 4/3

06:05-16:41

2 stops29h 06m

Portland

Sun 8/3

17:39-18:00

2 stops30h 51m

$2,155

AdelaideSeattle

ADL - SEA

ADLSEA

Adelaide

Fri 30/1

18:35-07:10

1 stop31h 05m

Seattle/Tacoma Intl

Fri 6/2

08:45-08:50

1 stop29h 35m

$2,221

AdelaidePortland

ADL - PDX

ADLPDX

Adelaide

Wed 4/3

14:55-14:48

1 stop18h 23m

Portland

Sun 8/3

23:59-08:30

2 stops39h 01m

$2,372

AdelaidePortland

ADL - PDX

ADLPDX

Adelaide

Wed 4/3

14:55-14:48

1 stop18h 23m

Portland

Sun 8/3

23:59-08:30

2 stops39h 01m

$2,375

AdelaideSeattle

ADL - SEA

ADLSEA

Adelaide

Fri 30/1

06:10-09:31

2 stops21h 51m

Seattle/Tacoma Intl

Fri 6/2

08:10-13:55

3 stops35h 15m

$2,426

AdelaideSeattle

ADL - SEA

ADLSEA

Adelaide

Thu 5/3

07:15-18:32

2 stops29h 47m

Seattle/Tacoma Intl

Mon 9/3

17:20-08:30

1 stop21h 40m

$2,682

AdelaideSeattle

ADL - SEA

ADLSEA

Adelaide

Thu 5/3

07:15-16:14

2 stops27h 29m

Seattle/Tacoma Intl

Mon 9/3

19:35-08:30

1 stop19h 25m

$2,687

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 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 $1,584. 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 $2,301.

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 $1,762. 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 $2,361.

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	22h 30m
Direct flights	None

The fastest flight from Adelaide to State of Washington takes 22h 30m

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 December 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 $924	Free cancellation	Rating 8.0 552 reviews	Search Air New Zealand flights
Qantas Airways	PriceFrom $1,350	Free cancellation	Rating 7.5 946 reviews	Search Qantas Airways flights
Singapore Airlines	PriceFrom $1,401	Free cancellation	Rating 8.1 1,413 reviews	Search Singapore Airlines flights
Air Canada	PriceFrom $1,452	Free cancellation	Rating 7.1 10,532 reviews	Search Air Canada flights
Virgin Australia	PriceFrom $1,704	Free cancellation	Rating 7.6 428 reviews	Search Virgin Australia flights
United Airlines	PriceFrom $1,717	Free cancellation	Rating 7.4 9,092 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 $942

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 17/1. 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

Cheap last-minute flights

Qantas Airways flights from Adelaide to State of Washington

Our best Qantas Airways 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

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?

Qantas Airways and United 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