What is the cheapest airline that flies from Seattle/Tacoma Intl to Adelaide?

Qantas Airways is the most popular carrier operating from Seattle/Tacoma Intl to Adelaide

When did momondo last update prices for flights from Seattle/Tacoma Intl Airport to Adelaide Airport?

Prices for flights from Seattle/Tacoma Intl Airport to Adelaide Airport were last updated today.

How old do you have to be to fly from Seattle/Tacoma Intl Airport to Adelaide Airport?

The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and stopovers. It is recommended that you verify with the airline you are booking with for travel from Seattle/Tacoma Intl Airport to Adelaide Airport.

What documentation or ID do you need to fly to Adelaide Airport?

The necessary travel and health documents for your Adelaide Airport 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.

$884 Cheap Flights from Seattle to Adelaide in 2025/26

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Find the cheapest flights from Seattle to Adelaide

Round-trip

One-way

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15:40 - 19:10SEA-ADL

33h 00m2 stops

06:10 - 09:31ADL-SEA

21h 51m2 stops

$1,521Air Canada

Find Deal

Sun, 1 Feb - Sun, 8 Feb

10:05 - 18:50SEA-ADL

38h 15m2 stops

06:10 - 09:31ADL-SEA

21h 51m2 stops

$1,527Multiple Airlines

Find Deal

Sat, 31 Jan - Sun, 8 Feb

20:00 - 18:50SEA-ADL

28h 20m2 stops

06:10 - 19:16ADL-SEA

31h 36m2 stops

$1,534Multiple Airlines

Find Deal

Sat, 31 Jan - Sun, 8 Feb

10:05 - 18:50SEA-ADL

38h 15m2 stops

06:10 - 09:31ADL-SEA

21h 51m2 stops

$1,536Multiple Airlines

Find Deal

Sat, 31 Jan - Sun, 8 Feb

10:05 - 18:50SEA-ADL

38h 15m2 stops

06:10 - 19:16ADL-SEA

31h 36m2 stops

$1,537Multiple Airlines

Find Deal

Sat, 31 Jan - Sun, 8 Feb

20:00 - 18:50SEA-ADL

28h 20m2 stops

06:10 - 19:16ADL-SEA

31h 36m2 stops

$1,539Multiple Airlines

Find Deal

Sat, 31 Jan - Sun, 8 Feb

10:05 - 18:50SEA-ADL

38h 15m2 stops

06:10 - 14:31ADL-SEA

26h 51m2 stops

$1,541Multiple Airlines

Find Deal

Sat, 31 Jan - Sun, 8 Feb

10:05 - 18:50SEA-ADL

38h 15m2 stops

06:10 - 09:31ADL-SEA

21h 51m2 stops

$1,547Multiple Airlines

Find Deal

Sat, 31 Jan - Sun, 8 Feb

10:05 - 18:50SEA-ADL

38h 15m2 stops

06:10 - 19:16ADL-SEA

31h 36m2 stops

$1,553Multiple Airlines

Find Deal

Sat, 31 Jan - Sun, 8 Feb

15:40 - 22:30SEA-ADL

36h 20m2 stops

06:10 - 14:31ADL-SEA

26h 51m2 stops

$1,577Air Canada

Find Deal

Sun, 1 Feb - Sun, 8 Feb

Air Canada flights from Seattle to Adelaide

Our best Air Canada deals on Seattle to Adelaide flight tickets

Air Canada

1 Feb

SEA20:00Seattle/Tacoma Intl

28h 40m

2 stops

ADL19:10Adelaide

8 Feb

ADL06:10Adelaide

21h 51m

2 stops

SEA09:31Seattle/Tacoma Intl

$1,577

Find similar

Air Canada

1 Feb

SEA10:05Seattle/Tacoma Intl

35h 45m

2 stops

ADL16:20Adelaide

8 Feb

ADL06:10Adelaide

26h 51m

2 stops

SEA14:31Seattle/Tacoma Intl

$1,579

Find similar

Air Canada

1 Feb

SEA05:50Seattle/Tacoma Intl

37h 35m

2 stops

ADL13:55Adelaide

10 Feb

ADL06:10Adelaide

34h 26m

2 stops

SEA22:06Seattle/Tacoma Intl

$1,580

Find similar

United Airlines flights from Seattle to Adelaide

Our best United Airlines deals on Seattle to Adelaide flight tickets

United Airlines

2 Feb

SEA09:25Seattle/Tacoma Intl

29h 35m

1 stop

ADL09:30Adelaide

9 Feb

ADL14:55Adelaide

24h 50m

2 stops

SEA21:15Seattle/Tacoma Intl

$1,698

Find similar

United Airlines

2 Feb

SEA17:10Seattle/Tacoma Intl

21h 50m

1 stop

ADL09:30Adelaide

9 Feb

ADL14:55Adelaide

22h 03m

1 stop

SEA18:28Seattle/Tacoma Intl

$1,700

Find similar

United Airlines

2 Feb

SEA12:25Seattle/Tacoma Intl

26h 35m

2 stops

ADL09:30Adelaide

11 Feb

ADL14:55Adelaide

28h 34m

1 stop

SEA00:59Seattle/Tacoma Intl

$1,707

Find similar

Fly from

Fly to

Route

Depart

Return

Price

SeattleAdelaide

SEA - ADL

SEAADL

Seattle/Tacoma Intl

Sun 1/2

15:40-19:10

2 stops33h 00m

Adelaide

Sun 8/2

06:10-09:31

2 stops21h 51m

$1,521

SeattleAdelaide

SEA - ADL

SEAADL

Seattle/Tacoma Intl

Sat 31/1

10:05-18:50

2 stops38h 15m

Adelaide

Sun 8/2

06:10-09:31

2 stops21h 51m

$1,527

SeattleAdelaide

SEA - ADL

SEAADL

Seattle/Tacoma Intl

Sat 31/1

20:00-18:50

2 stops28h 20m

Adelaide

Sun 8/2

06:10-19:16

2 stops31h 36m

$1,534

SeattleAdelaide

SEA - ADL

SEAADL

Seattle/Tacoma Intl

Sat 31/1

10:05-18:50

2 stops38h 15m

Adelaide

Sun 8/2

06:10-09:31

2 stops21h 51m

$1,536

SeattleAdelaide

SEA - ADL

SEAADL

Seattle/Tacoma Intl

Sat 31/1

10:05-18:50

2 stops38h 15m

Adelaide

Sun 8/2

06:10-19:16

2 stops31h 36m

$1,537

SeattleAdelaide

SEA - ADL

SEAADL

Seattle/Tacoma Intl

Sat 31/1

20:00-18:50

2 stops28h 20m

Adelaide

Sun 8/2

06:10-19:16

2 stops31h 36m

$1,539

SeattleAdelaide

SEA - ADL

SEAADL

Seattle/Tacoma Intl

Sat 31/1

10:05-18:50

2 stops38h 15m

Adelaide

Sun 8/2

06:10-14:31

2 stops26h 51m

$1,541

SeattleAdelaide

SEA - ADL

SEAADL

Seattle/Tacoma Intl

Sat 31/1

10:05-18:50

2 stops38h 15m

Adelaide

Sun 8/2

06:10-09:31

2 stops21h 51m

$1,547

SeattleAdelaide

SEA - ADL

SEAADL

Seattle/Tacoma Intl

Sat 31/1

10:05-18:50

2 stops38h 15m

Adelaide

Sun 8/2

06:10-19:16

2 stops31h 36m

$1,553

SeattleAdelaide

SEA - ADL

SEAADL

Seattle/Tacoma Intl

Sun 1/2

15:40-22:30

2 stops36h 20m

Adelaide

Sun 8/2

06:10-14:31

2 stops26h 51m

$1,577

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 Seattle to Adelaide

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 Adelaide?

According to our data, Monday is the cheapest day to fly to Adelaide from Seattle. The lowest ticket price found for a Monday departure recently was $2,136. Keep in mind that prices can always vary depending on your route and whether or not you are flying domestic or international. If your travel schedule is flexible, try to avoid departing on a Sunday because tickets tend to average around $2,223. These prices are subject to change though, so be sure to set up a Price Alert for flights to Adelaide.

When to book flights from Seattle to Adelaide

Are you open to changing your travel dates? Check out the ideal times to fly from Seattle to Adelaide according to our flight data. Find out which month and days have the cheapest flights.

Estimated return price

Cheap Seattle to Adelaide (SEA to ADL) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Seattle to Adelaide

Fastest flight time	23h 35m
Direct flights	None

The fastest flight from Seattle to Adelaide takes 23h 35m

There are no direct flights from Seattle to Adelaide. There are no popular flight routes from Seattle to Adelaide.

Search flight deals

How far is Seattle/Tacoma Intl to Adelaide by plane?
The distance between Seattle/Tacoma Intl and Adelaide is about 13407.3 km. Typically, this will take 19h 30m by plane in normal conditions.
When did momondo last update prices for flights from Seattle/Tacoma Intl Airport to Adelaide Airport?
Prices for flights from Seattle/Tacoma Intl Airport to Adelaide Airport were last updated today.
How old do you have to be to fly from Seattle/Tacoma Intl Airport to Adelaide Airport?
The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and stopovers. It is recommended that you verify with the airline you are booking with for travel from Seattle/Tacoma Intl Airport to Adelaide Airport.
What documentation or ID do you need to fly to Adelaide Airport?
The necessary travel and health documents for your Adelaide Airport 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.

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Why use momondo?

Why should I use momondo to find a flight deal from Seattle to Adelaide?

To find the flight that best suits your needs, momondo gathers a range of flights from a large pool of different airlines and agents; you can then use our insights and filters to find and book the right flight to Adelaide from Seattle.

Can I find flights from Seattle to Adelaide with flexible booking policies on momondo?

Yes. momondo allows you to filter the results for Seattle to Adelaide flights to just show those with flexible booking policies.

How can momondo help me find flights from Seattle to Adelaide?

momondo provides multiple filters to help you find the best flight to Adelaide from Seattle. Filter by price, airline, airports, cabin, aircraft, payment method, number of stops and more.

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

Of course. momondo tracks the price of Seattle to Adelaide flights. All you need is a valid email address and we will do the rest; it is that quick and easy.