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

Qantas Airways is the most popular carrier operating from Adelaide to Washington

Which airlines fly to State of Washington?

Virgin Australia, Singapore Airlines and Qantas Airways 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 39% 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 September 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.

$1,405 Cheap Flights from Adelaide to Washington in 2025/26

1 adult

Discover deals from 900+ travel sites with momondo.

Save money when you book flights with momondo

Big names, great deals

Search 100s of travel sites to compare prices.

Filter for what you want

Free Wi-Fi? Stopover? Instantly customise your results.

Trusted and free

We’re completely free to use - no hidden charges or fees.

Price Alerts

Not ready to book? to track prices.

Search flight deals

Find the cheapest flights from Adelaide to Washington

Round-trip

One-way

Cheap return flights

13:55 - 18:36ADL-PDX

22h 11m1 stop

23:55 - 08:30PDX-ADL

39h 05m2 stops

$1,405United Airlines

Find Deal

Wed, 11 Mar - Sun, 15 Mar

13:55 - 15:05ADL-SEA

18h 40m1 stop

19:10 - 08:30SEA-ADL

43h 50m2 stops

$1,405United Airlines

Find Deal

Wed, 11 Mar - Sun, 15 Mar

06:10 - 09:31ADL-SEA

20h 51m2 stops

15:40 - 13:55SEA-ADL

28h 45m2 stops

$1,504Air Canada

Find Deal

Wed, 11 Mar - Sun, 15 Mar

06:10 - 09:15ADL-PDX

20h 35m2 stops

09:50 - 13:55PDX-ADL

34h 35m2 stops

$1,522Air Canada

Find Deal

Wed, 11 Mar - Sun, 15 Mar

06:10 - 22:06ADL-SEA

33h 26m2 stops

15:40 - 13:55SEA-ADL

28h 45m2 stops

$1,522Air Canada

Find Deal

Wed, 11 Mar - Sun, 15 Mar

07:50 - 13:50ADL-PDX

23h 30m2 stops

12:33 - 09:50PDX-ADL

26h 47m2 stops

$1,554Qantas Airways

Find Deal

Thu, 30 Oct - Thu, 6 Nov

06:10 - 18:36ADL-PDX

29h 56m2 stops

15:54 - 14:10PDX-ADL

27h 46m2 stops

$1,710Virgin Australia

Find Deal

Sat, 1 Nov - Sat, 8 Nov

10:15 - 08:10ADL-SEA

39h 25m1 stop

09:45 - 08:50SEA-ADL

29h 35m1 stop

$1,913Singapore 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

$1,916Singapore Airlines

Find Deal

Wed, 11 Mar - Sun, 15 Mar

17:10 - 18:43ADL-SEA

44h 03m2 stops

06:02 - 11:50SEA-ADL

35h 18m2 stops

$2,685Qantas Airways

Find Deal

Sat, 20 Dec - Sun, 11 Jan

Air Canada flights from Adelaide to State of Washington

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

Air Canada

11 Mar

ADL06:10Adelaide

20h 51m

2 stops

SEA09:31Seattle/Tacoma Intl

15 Mar

SEA15:40Seattle/Tacoma Intl

28h 45m

2 stops

ADL13:55Adelaide

$1,504

Find similar

Air Canada

11 Mar

ADL06:10Adelaide

33h 26m

2 stops

SEA22:06Seattle/Tacoma Intl

15 Mar

SEA15:40Seattle/Tacoma Intl

28h 45m

2 stops

ADL13:55Adelaide

$1,522

Find similar

Air Canada

11 Mar

ADL06:10Adelaide

33h 26m

2 stops

SEA22:06Seattle/Tacoma Intl

15 Mar

SEA20:00Seattle/Tacoma Intl

24h 25m

2 stops

ADL13:55Adelaide

$1,545

Find similar

Singapore Airlines flights from Adelaide to State of Washington

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

Singapore Airlines

11 Mar

ADL10:15Adelaide

39h 25m

1 stop

SEA08:10Seattle/Tacoma Intl

15 Mar

SEA09:45Seattle/Tacoma Intl

29h 35m

1 stop

ADL08:50Adelaide

$1,913

Find similar

Singapore Airlines

11 Mar

ADL10:15Adelaide

39h 25m

1 stop

SEA08:10Seattle/Tacoma Intl

15 Mar

SEA09:45Seattle/Tacoma Intl

29h 35m

1 stop

ADL08:50Adelaide

$1,916

Find similar

Singapore Airlines

11 Mar

ADL10:15Adelaide

39h 25m

1 stop

SEA08:10Seattle/Tacoma Intl

15 Mar

SEA09:45Seattle/Tacoma Intl

29h 35m

1 stop

ADL08:50Adelaide

$1,919

Find similar

Fly from

Fly to

Route

Depart

Return

Price

AdelaidePortland

ADL - PDX

ADLPDX

Adelaide

Wed 11/3

13:55-18:36

1 stop22h 11m

Portland

Sun 15/3

23:55-08:30

2 stops39h 05m

$1,405

AdelaideSeattle

ADL - SEA

ADLSEA

Adelaide

Wed 11/3

13:55-15:05

1 stop18h 40m

Seattle/Tacoma Intl

Sun 15/3

19:10-08:30

2 stops43h 50m

$1,405

AdelaideSeattle

ADL - SEA

ADLSEA

Adelaide

Wed 11/3

06:10-09:31

2 stops20h 51m

Seattle/Tacoma Intl

Sun 15/3

15:40-13:55

2 stops28h 45m

$1,504

AdelaidePortland

ADL - PDX

ADLPDX

Adelaide

Wed 11/3

06:10-09:15

2 stops20h 35m

Portland

Sun 15/3

09:50-13:55

2 stops34h 35m

$1,522

AdelaideSeattle

ADL - SEA

ADLSEA

Adelaide

Wed 11/3

06:10-22:06

2 stops33h 26m

Seattle/Tacoma Intl

Sun 15/3

15:40-13:55

2 stops28h 45m

$1,522

AdelaidePortland

ADL - PDX

ADLPDX

Adelaide

Thu 30/10

07:50-13:50

2 stops23h 30m

Portland

Thu 6/11

12:33-09:50

2 stops26h 47m

$1,554

AdelaidePortland

ADL - PDX

ADLPDX

Adelaide

Sat 1/11

06:10-18:36

2 stops29h 56m

Portland

Sat 8/11

15:54-14:10

2 stops27h 46m

$1,710

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

$1,913

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

$1,916

AdelaideSeattle

ADL - SEA

ADLSEA

Adelaide

Sat 20/12

17:10-18:43

2 stops44h 03m

Seattle/Tacoma Intl

Sun 11/1

06:02-11:50

2 stops35h 18m

$2,685

Flights are sorted by cheapest return flights first.

Showing 1-10 of 16 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 $1,444. 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 $1,609.

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 $1,575. 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 $2,288.

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 $1,752. 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 $2,348.

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 September 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 $919	Free cancellation	Rating 8.0 505 reviews	Search Air New Zealand flights
Air Canada	PriceFrom $1,248	Free cancellation	Rating 7.1 10,000 reviews	Search Air Canada flights
Singapore Airlines	PriceFrom $1,393	Free cancellation	Rating 8.1 1,367 reviews	Search Singapore Airlines flights
Qantas Airways	PriceFrom $1,427	Free cancellation	Rating 7.5 907 reviews	Search Qantas Airways flights
Virgin Australia	PriceFrom $1,705	Free cancellation	Rating 7.5 416 reviews	Search Virgin Australia flights
United Airlines	PriceFrom $1,707	Free cancellation	Rating 7.4 8,926 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.

Start using Trips

Find my bookings

Get notified when prices go down

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

1 adult

Fri 17/10

Fri 24/10

Email me momondo's favourite deals

By creating a price alert you accept our terms of use and privacy policy.

Find better results for your trip to Washington

Popular Cities in Washington

Look for other cheap flights to Los Angelesfrom $856

Look for other cheap flights to New Yorkfrom $1,200

Look for other cheap flights to San Franciscofrom $877

Look for other cheap flights to Honolulufrom $605

Look for other cheap flights to Las Vegasfrom $1,137

Look for other cheap flights to Miamifrom $1,307

Look for other cheap flights to Chicagofrom $1,202

Look for other cheap flights to Orlandofrom $1,257

Look for other cheap flights to Dallasfrom $1,067

Look for other cheap flights to Washington, D.C.from $1,265

Look for other cheap flights to Bostonfrom $1,233

Look for other cheap flights to Seattlefrom $1,163

Cheap flights from Adelaide to Washington from $1,405

This is the cheapest return flight price found by a momondo user in the last 72 hours by searching for a flight from Adelaide to Washington departing on 11/3. 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

Singapore Airlines flights from Adelaide to State of Washington

Our best Singapore Airlines 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

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?

Qantas Airways is the most popular carrier 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