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

United Airlines is the most popular carrier 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 August 2026, there are 2 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.

$1,085 Cheap Flights from Adelaide to Washington in 2026

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from Adelaide to Washington

Return

One-way

Cheap return flights

Enter your travel dates to find the best prices.

20:00 - 14:46-

35h 16m

19:45 - 13:30-

25h 15m

$1,495Multiple Airlines

Mon, 14 Sep - Mon, 21 Sep

06:10 - 18:22-

30h 42m

15:15 - 10:55-

25h 10m

$1,496Air Canada

Tue, 24 Nov - Tue, 15 Dec

19:00 - 19:11-

40h 41m

15:30 - 18:10-

34h 10m

$1,499Air Canada

Mon, 14 Sep - Mon, 21 Sep

06:10 - 18:22-

30h 42m

15:15 - 10:55-

25h 10m

$1,506Air Canada

Tue, 24 Nov - Tue, 15 Dec

18:55 - 18:32-

40h 07m

15:00 - 11:10-

27h 40m

$1,552Air Canada

Sun, 6 Sep - Fri, 11 Sep

06:00 - 13:25-

23h 55m

17:55 - 11:55-

25h 30m

$1,577Multiple Airlines

Tue, 25 Aug - Tue, 1 Sep

14:00 - 23:59-

26h 29m

14:53 - 09:25-

26h 02m

$1,583Qantas Airways

Tue, 25 Aug - Tue, 1 Sep

12:40 - 22:01-

25h 51m

17:55 - 11:05-

24h 40m

$1,596Multiple Airlines

Mon, 14 Sep - Mon, 21 Sep

12:40 - 22:58-

26h 48m

17:55 - 11:05-

24h 40m

$1,596Multiple Airlines

Tue, 25 Aug - Tue, 1 Sep

06:25 - 06:11-

40h 16m

07:20 - 22:35-

22h 45m

$1,627Multiple Airlines

Thu, 27 Aug - Mon, 31 Aug

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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

Air Canada

24 Nov

ADL06:10Adelaide

30h 42m

2 stops

SEA18:22Seattle/Tacoma Intl

15 Dec

SEA15:15Seattle/Tacoma Intl

25h 10m

2 stops

ADL10:55Adelaide

$1,496

Air Canada

14 Sept

ADL19:00Adelaide

40h 41m

2 stops

PDX19:11Portland

21 Sept

PDX15:30Portland

34h 10m

2 stops

ADL18:10Adelaide

$1,499

Air Canada

24 Nov

ADL06:10Adelaide

30h 42m

2 stops

SEA18:22Seattle/Tacoma Intl

15 Dec

SEA15:15Seattle/Tacoma Intl

25h 10m

2 stops

ADL10:55Adelaide

$1,506

Singapore Airlines flights from Adelaide to State of Washington

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

Singapore Airlines

24 Nov

ADL18:20Adelaide

31h 20m

2 stops

SEA07:10Seattle/Tacoma Intl

15 Dec

SEA08:45Seattle/Tacoma Intl

38h 05m

1 stop

ADL17:20Adelaide

$2,290

Singapore Airlines

24 Nov

ADL18:20Adelaide

31h 20m

2 stops

SEA07:10Seattle/Tacoma Intl

15 Dec

SEA08:45Seattle/Tacoma Intl

38h 05m

1 stop

ADL17:20Adelaide

$2,299

Singapore Airlines

24 Nov

ADL18:20Adelaide

31h 20m

2 stops

SEA07:10Seattle/Tacoma Intl

15 Dec

SEA08:45Seattle/Tacoma Intl

38h 05m

1 stop

ADL17:20Adelaide

$2,300

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

AdelaidePortland

ADL - PDX

ADLPDX

Adelaide

Mon 14/9

20:00-14:46

2 stops35h 16m

Portland

Mon 21/9

19:45-13:30

2 stops25h 15m

$1,495

AdelaideSeattle

ADL - SEA

ADLSEA

Adelaide

Tue 24/11

06:10-18:22

2 stops30h 42m

Seattle/Tacoma Intl

Tue 15/12

15:15-10:55

2 stops25h 10m

$1,496

AdelaidePortland

ADL - PDX

ADLPDX

Adelaide

Mon 14/9

19:00-19:11

2 stops40h 41m

Portland

Mon 21/9

15:30-18:10

2 stops34h 10m

$1,499

AdelaideSeattle

ADL - SEA

ADLSEA

Adelaide

Tue 24/11

06:10-18:22

2 stops30h 42m

Seattle/Tacoma Intl

Tue 15/12

15:15-10:55

2 stops25h 10m

$1,506

AdelaideSeattle

ADL - SEA

ADLSEA

Adelaide

Sun 6/9

18:55-18:32

2 stops40h 07m

Seattle/Tacoma Intl

Fri 11/9

15:00-11:10

2 stops27h 40m

$1,552

Fastest return journey

AdelaidePortland

ADL - PDX

ADLPDX

Adelaide

Tue 25/8

06:00-13:25

2 stops23h 55m

Portland

Tue 1/9

17:55-11:55

2 stops25h 30m

$1,577

AdelaidePortland

ADL - PDX

ADLPDX

Adelaide

Tue 25/8

14:00-23:59

2 stops26h 29m

Portland

Tue 1/9

14:53-09:25

2 stops26h 02m

$1,583

AdelaidePortland

ADL - PDX

ADLPDX

Adelaide

Mon 14/9

12:40-22:01

3 stops25h 51m

Portland

Mon 21/9

17:55-11:05

2 stops24h 40m

$1,596

AdelaidePortland

ADL - PDX

ADLPDX

Adelaide

Tue 25/8

12:40-22:58

3 stops26h 48m

Portland

Tue 1/9

17:55-11:05

2 stops24h 40m

$1,596

AdelaideSeattle

ADL - SEA

ADLSEA

Adelaide

Thu 27/8

06:25-06:11

2 stops40h 16m

Seattle/Tacoma Intl

Mon 31/8

07:20-22:35

2 stops22h 45m

$1,627

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 month to fly to State of Washington?

The month of October is, on average, the cheapest month to fly to State of Washington from Adelaide, with most prices found around $0. If you aren’t able to travel during the month of October, then book flights to State of Washington from Adelaide during March instead. Flights to State of Washington in March, while not as cheap as those in October, still average around $0.

Can stopping save me money on Adelaide to State of Washington flights?

You could potentially save up to 10% 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	26h 42m
Direct flights	None

The fastest flight from Adelaide to State of Washington takes 26h 42m

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

Frequently asked questions about flying 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 August 2026, there are 2 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 Canada	PriceFrom $1,185	Free cancellation	Rating 7.1 11,425 reviews		Search Air Canada 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.