When did momondo last update prices for flights from South Australia to Washington?

Prices for flights from South Australia to Washington are refreshed on a daily basis.

How many operators does momondo search for flights from South Australia to Washington?

There is 1 operator available for flights from South Australia to Washington as of September 2026.

How old do you have to be to fly from South Australia to Washington?

The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from South Australia to Washington.

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

The necessary travel and health documents for your Washington trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's licence and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

$1,626 Cheap Flights from South Australia to Washington in 2026/27

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from South Australia to Washington

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Cheap return flights

Enter your travel dates to find the best prices.

06:25 - 14:25ADL Adelaide-SEA Seattle/Tacoma Intl

25h 30m2 stops Brisbane Los Angeles Los Angeles

17:59 - 13:30SEA Seattle/Tacoma Intl-ADL Adelaide

25h 01m2 stops Los Angeles Los Angeles Melbourne

$1,626Qantas Airways

Wed, 28 Oct - Wed, 4 Nov

06:00 - 12:16ADL Adelaide-SEA Seattle/Tacoma Intl

23h 46m2 stops Melbourne Los Angeles Los Angeles

15:20 - 11:15SEA Seattle/Tacoma Intl-ADL Adelaide

26h 25m2 stops Los Angeles Los Angeles Melbourne

$1,632Qantas Airways

Wed, 14 Oct - Wed, 21 Oct

06:00 - 12:16ADL Adelaide-SEA Seattle/Tacoma Intl

23h 46m2 stops Melbourne Los Angeles Los Angeles

12:13 - 09:25SEA Seattle/Tacoma Intl-ADL Adelaide

27h 42m3 stops Portland Los Angeles Los Angeles Melbourne

$1,632Multiple Airlines

Wed, 14 Oct - Wed, 21 Oct

06:00 - 13:19ADL Adelaide-SEA Seattle/Tacoma Intl

24h 49m3 stops Melbourne Los Angeles Los Angeles Portland

15:54 - 11:55SEA Seattle/Tacoma Intl-ADL Adelaide

26h 31m3 stops Portland Los Angeles Los Angeles Sydney Kingsford Smith

$1,650Multiple Airlines

Wed, 14 Oct - Wed, 21 Oct

06:25 - 14:25ADL Adelaide-SEA Seattle/Tacoma Intl

25h 30m2 stops Brisbane Los Angeles Los Angeles

13:50 - 11:00SEA Seattle/Tacoma Intl-ADL Adelaide

26h 40m3 stops San Francisco Los Angeles Los Angeles Sydney Kingsford Smith

$1,659Multiple Airlines

Wed, 28 Oct - Wed, 4 Nov

14:30 - 08:05ADL Adelaide-SEA Seattle/Tacoma Intl

35h 05m2 stops Sydney Kingsford Smith Singapore Changi

08:40 - 08:50SEA Seattle/Tacoma Intl-ADL Adelaide

29h 40m1 stop Singapore Changi

$1,829Singapore Airlines

Wed, 28 Oct - Wed, 4 Nov

10:15 - 08:05ADL Adelaide-SEA Seattle/Tacoma Intl

39h 20m1 stop Singapore Changi

08:40 - 08:50SEA Seattle/Tacoma Intl-ADL Adelaide

53h 40m1 stop Singapore Changi

$1,909Singapore Airlines

Fri, 30 Oct - Fri, 6 Nov

06:25 - 16:07ADL Adelaide-SEA Seattle/Tacoma Intl

27h 12m2 stops Brisbane Los Angeles Los Angeles

13:35 - 13:45SEA Seattle/Tacoma Intl-ADL Adelaide

29h 40m2 stops Los Angeles Los Angeles Sydney Kingsford Smith

$1,984Qantas Airways

Fri, 30 Oct - Fri, 6 Nov

06:10 - 14:37ADL Adelaide-SEA Seattle/Tacoma Intl

26h 57m2 stops Brisbane Vancouver Intl

19:05 - 13:55SEA Seattle/Tacoma Intl-ADL Adelaide

24h 20m2 stops Vancouver Intl Sydney Kingsford Smith

$2,928Air Canada

Thu, 24 Dec - Thu, 7 Jan

06:10 - 14:37ADL Adelaide-SEA Seattle/Tacoma Intl

26h 57m2 stops Brisbane Vancouver Intl

19:05 - 13:55SEA Seattle/Tacoma Intl-ADL Adelaide

24h 20m2 stops Vancouver Intl Sydney Kingsford Smith

$3,060Air Canada

Fri, 25 Dec - Thu, 7 Jan

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Qantas Airways flights from South Australia to State of Washington

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

Qantas Airways

28 Oct

ADL06:25Adelaide

25h 30m

2 stops

SEA14:25Seattle/Tacoma Intl

4 Nov

SEA17:59Seattle/Tacoma Intl

25h 01m

2 stops

ADL13:30Adelaide

$1,626

Qantas Airways

30 Oct

ADL06:25Adelaide

27h 12m

2 stops

SEA16:07Seattle/Tacoma Intl

6 Nov

SEA13:35Seattle/Tacoma Intl

29h 40m

2 stops

ADL13:45Adelaide

$1,984

Singapore Airlines flights from South Australia to State of Washington

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

Singapore Airlines

28 Oct

ADL14:30Adelaide

35h 05m

2 stops

SEA08:05Seattle/Tacoma Intl

4 Nov

SEA08:40Seattle/Tacoma Intl

29h 40m

1 stop

ADL08:50Adelaide

$1,829

Singapore Airlines

30 Oct

ADL10:15Adelaide

39h 20m

1 stop

SEA08:05Seattle/Tacoma Intl

6 Nov

SEA08:40Seattle/Tacoma Intl

53h 40m

1 stop

ADL08:50Adelaide

$1,909

Singapore Airlines

28 Oct

ADL10:15Adelaide

63h 20m

1 stop

SEA08:05Seattle/Tacoma Intl

4 Nov

SEA08:40Seattle/Tacoma Intl

29h 40m

1 stop

ADL08:50Adelaide

$2,212

momondo Fare Finder

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

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

AdelaideSeattle

ADL Adelaide - SEA Seattle/Tacoma Intl

ADLSEA

Adelaide

Wed 28/10

06:25-14:25

2 stops25h 30m

Seattle/Tacoma Intl

Wed 4/11

17:59-13:30

2 stops25h 01m

$1,626

Fastest return journey

AdelaideSeattle

ADL Adelaide - SEA Seattle/Tacoma Intl

ADLSEA

Adelaide

Wed 14/10

06:00-12:16

2 stops23h 46m

Seattle/Tacoma Intl

Wed 21/10

15:20-11:15

2 stops26h 25m

$1,632

AdelaideSeattle

ADL Adelaide - SEA Seattle/Tacoma Intl

ADLSEA

Adelaide

Wed 14/10

06:00-12:16

2 stops23h 46m

Seattle/Tacoma Intl

Wed 21/10

12:13-09:25

3 stops27h 42m

$1,632

AdelaideSeattle

ADL Adelaide - SEA Seattle/Tacoma Intl

ADLSEA

Adelaide

Wed 14/10

06:00-13:19

3 stops24h 49m

Seattle/Tacoma Intl

Wed 21/10

15:54-11:55

3 stops26h 31m

$1,650

AdelaideSeattle

ADL Adelaide - SEA Seattle/Tacoma Intl

ADLSEA

Adelaide

Wed 28/10

06:25-14:25

2 stops25h 30m

Seattle/Tacoma Intl

Wed 4/11

13:50-11:00

3 stops26h 40m

$1,659

AdelaideSeattle

ADL Adelaide - SEA Seattle/Tacoma Intl

ADLSEA

Adelaide

Wed 28/10

14:30-08:05

2 stops35h 05m

Seattle/Tacoma Intl

Wed 4/11

08:40-08:50

1 stop29h 40m

$1,829

AdelaideSeattle

ADL Adelaide - SEA Seattle/Tacoma Intl

ADLSEA

Adelaide

Fri 30/10

10:15-08:05

1 stop39h 20m

Seattle/Tacoma Intl

Fri 6/11

08:40-08:50

1 stop53h 40m

$1,909

AdelaideSeattle

ADL Adelaide - SEA Seattle/Tacoma Intl

ADLSEA

Adelaide

Fri 30/10

06:25-16:07

2 stops27h 12m

Seattle/Tacoma Intl

Fri 6/11

13:35-13:45

2 stops29h 40m

$1,984

AdelaideSeattle

ADL Adelaide - SEA Seattle/Tacoma Intl

ADLSEA

Adelaide

Thu 24/12

06:10-14:37

2 stops26h 57m

Seattle/Tacoma Intl

Thu 7/1

19:05-13:55

2 stops24h 20m

$2,928

AdelaideSeattle

ADL Adelaide - SEA Seattle/Tacoma Intl

ADLSEA

Adelaide

Fri 25/12

06:10-14:37

2 stops26h 57m

Seattle/Tacoma Intl

Thu 7/1

19:05-13:55

2 stops24h 20m

$3,060

Flights are sorted by cheapest return flights first.

Sorted by cheapest first

How to get the cheapest flight ticket from South Australia 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?

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

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

You could potentially save up to 2% on your flight if you consider stops on a South Australia to State of Washington flight.

Cheap South Australia to State of Washington flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from South Australia to State of Washington

Best price found	$1,626
Fastest flight time	23h 55m
Direct flights	None

The best flight deal from South Australia to State of Washington found on momondo in the last 72 hours is $1,626

The fastest flight from South Australia to State of Washington takes 23h 55m

There are no direct flights from South Australia to State of Washington. There are no popular flight routes from South Australia to State of Washington.

Search flight deals

Frequently asked questions about flying from South Australia to Washington

When did momondo last update prices for flights from South Australia to Washington?
Prices for flights from South Australia to Washington are refreshed on a daily basis.
How many operators does momondo search for flights from South Australia to Washington?
There is 1 operator available for flights from South Australia to Washington as of September 2026.
How old do you have to be to fly from South Australia to Washington?
The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from South Australia to Washington.
What documentation or ID do you need to fly to Washington?
The necessary travel and health documents for your Washington trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's licence and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

Best airlines flying from South Australia to State of Washington

Compare and see reviews for airlines that fly from South Australia to State of Washington with momondo

Airline	Rating	Free cancellation	Price
Air Canada	PriceFrom $1,341	Free cancellation	Rating 7.1 11,641 reviews		Search Air Canada flights

Why use momondo?

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

We help find the flight that best suits your needs, momondo compares prices from hundreds of airlines and travel agents and helps you filter them to find the best flight from South Australia to Washington for you.

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

Yes. All flights to Washington from South Australia on momondo can be compared and filtered by various policies on offer, including flexible booking.

How can momondo help me find flights from South Australia to Washington?

Once all potential South Australia to Washington flight options are in front of you, momondo lets you sort and filter flights based on preferences such as airline, price and flight times amongst many other options.

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

Price alerts on flights to Washington from South Australia are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.