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.

$926 Cheap Flights from Seattle to Adelaide in 2026

1 adult

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 Seattle to Adelaide

Round-trip

One-way

Cheap return flights

Enter your travel dates to find the best prices.

20:00 - 22:30

SEA

ADL

32h 00m

2 stops

06:10 - 19:16

ADL

SEA

31h 36m

2 stops

$1,418Air Canada

Wed, 25 Feb - Wed, 4 Mar

20:00 - 15:25

SEA

ADL

24h 55m

2 stops

20:00 - 09:15

ADL

SEA

31h 45m

2 stops

$1,509Multiple Airlines

Mon, 9 Feb - Mon, 16 Feb

19:20 - 18:10

SEA

ADL

30h 20m

2 stops

18:55 - 18:32

ADL

SEA

40h 07m

2 stops

$1,528Air Canada

Mon, 15 Jun - Tue, 21 Jul

15:50 - 12:15

SEA

ADL

25h 55m

2 stops

13:15 - 17:00

ADL

SEA

22h 15m

2 stops

$1,530Multiple Airlines

Thu, 26 Feb - Thu, 5 Mar

15:40 - 16:10

SEA

ADL

30h 00m

2 stops

06:10 - 15:01

ADL

SEA

27h 21m

2 stops

$1,542Air Canada

Thu, 26 Feb - Thu, 5 Mar

15:00 - 11:10

SEA

ADL

27h 40m

2 stops

20:00 - 09:17

ADL

SEA

29h 47m

2 stops

$1,550Air Canada

Sat, 27 Jun - Wed, 5 Aug

20:00 - 13:55

SEA

ADL

23h 25m

2 stops

19:55 - 22:06

ADL

SEA

44h 41m

2 stops

$1,627Air Canada

Sun, 15 Feb - Thu, 19 Feb

15:40 - 22:30

SEA

ADL

36h 20m

2 stops

06:00 - 09:15

ADL

SEA

21h 45m

2 stops

$1,628Air Canada

Sun, 15 Feb - Thu, 19 Feb

19:20 - 13:55

SEA

ADL

26h 05m

2 stops

20:00 - 09:15

ADL

SEA

29h 45m

2 stops

$1,643Air Canada

Fri, 8 May - Fri, 15 May

09:25 - 09:30

SEA

ADL

29h 35m

1 stop

14:55 - 15:41

ADL

SEA

19h 16m

1 stop

$1,662United Airlines

Mon, 9 Feb - Mon, 16 Feb

Air Canada flights from Seattle to Adelaide

Our best Air Canada deals on Seattle to Adelaide flight tickets

Air Canada

25 Feb

SEA20:00Seattle/Tacoma Intl

32h 00m

2 stops

ADL22:30Adelaide

4 Mar

ADL06:10Adelaide

31h 36m

2 stops

SEA19:16Seattle/Tacoma Intl

$1,418

Air Canada

15 June

SEA19:20Seattle/Tacoma Intl

30h 20m

2 stops

ADL18:10Adelaide

21 July

ADL18:55Adelaide

40h 07m

2 stops

SEA18:32Seattle/Tacoma Intl

$1,528

Air Canada

26 Feb

SEA15:40Seattle/Tacoma Intl

30h 00m

2 stops

ADL16:10Adelaide

5 Mar

ADL06:10Adelaide

27h 21m

2 stops

SEA15:01Seattle/Tacoma Intl

$1,542

United Airlines flights from Seattle to Adelaide

Our best United Airlines deals on Seattle to Adelaide flight tickets

United Airlines

9 Feb

SEA17:10Seattle/Tacoma Intl

21h 50m

1 stop

ADL09:30Adelaide

16 Feb

ADL14:55Adelaide

28h 34m

1 stop

SEA00:59Seattle/Tacoma Intl

$1,662

United Airlines

9 Feb

SEA12:25Seattle/Tacoma Intl

26h 35m

2 stops

ADL09:30Adelaide

16 Feb

ADL14:55Adelaide

26h 34m

2 stops

SEA22:59Seattle/Tacoma Intl

$1,668

United Airlines

9 Feb

SEA10:58Seattle/Tacoma Intl

28h 02m

2 stops

ADL09:30Adelaide

16 Feb

ADL14:55Adelaide

69h 38m

3 stops

SEA18:03Seattle/Tacoma Intl

$1,704

Fly from

Fly to

Route

Depart

Return

Price

SeattleAdelaide

SEA - ADL

SEAADL

Seattle/Tacoma Intl

Wed 25/2

20:00-22:30

2 stops32h 00m

Adelaide

Wed 4/3

06:10-19:16

2 stops31h 36m

$1,418

SeattleAdelaide

SEA - ADL

SEAADL

Seattle/Tacoma Intl

Mon 9/2

20:00-15:25

2 stops24h 55m

Adelaide

Mon 16/2

20:00-09:15

2 stops31h 45m

$1,509

SeattleAdelaide

SEA - ADL

SEAADL

Seattle/Tacoma Intl

Mon 15/6

19:20-18:10

2 stops30h 20m

Adelaide

Tue 21/7

18:55-18:32

2 stops40h 07m

$1,528

SeattleAdelaide

SEA - ADL

SEAADL

Seattle/Tacoma Intl

Thu 26/2

15:50-12:15

2 stops25h 55m

Adelaide

Thu 5/3

13:15-17:00

2 stops22h 15m

$1,530

SeattleAdelaide

SEA - ADL

SEAADL

Seattle/Tacoma Intl

Thu 26/2

15:40-16:10

2 stops30h 00m

Adelaide

Thu 5/3

06:10-15:01

2 stops27h 21m

$1,542

SeattleAdelaide

SEA - ADL

SEAADL

Seattle/Tacoma Intl

Sat 27/6

15:00-11:10

2 stops27h 40m

Adelaide

Wed 5/8

20:00-09:17

2 stops29h 47m

$1,550

SeattleAdelaide

SEA - ADL

SEAADL

Seattle/Tacoma Intl

Sun 15/2

20:00-13:55

2 stops23h 25m

Adelaide

Thu 19/2

19:55-22:06

2 stops44h 41m

$1,626

SeattleAdelaide

SEA - ADL

SEAADL

Seattle/Tacoma Intl

Sun 15/2

15:40-22:30

2 stops36h 20m

Adelaide

Thu 19/2

06:00-09:15

2 stops21h 45m

$1,628

SeattleAdelaide

SEA - ADL

SEAADL

Seattle/Tacoma Intl

Fri 8/5

19:20-13:55

2 stops26h 05m

Adelaide

Fri 15/5

20:00-09:15

2 stops29h 45m

$1,643

SeattleAdelaide

SEA - ADL

SEAADL

Seattle/Tacoma Intl

Mon 9/2

09:25-09:30

1 stop29h 35m

Adelaide

Mon 16/2

14:55-15:41

1 stop19h 16m

$1,662

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

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 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 10m
Direct flights	None

The fastest flight from Seattle to Adelaide takes 23h 10m

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 23h 10m 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.

Glenelg

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.