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.

$1,655 Cheap Flights from Seattle to Adelaide in 2025/26

1 adult

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Find the cheapest flights from Seattle to Adelaide

Round-trip

One-way

Cheap return flights

Enter your travel dates to find the best prices.

11:00 - 06:15SEA-ADL

48h 45m2 stops

19:05 - 09:00ADL-SEA

32h 25m2 stops

$1,671Multiple Airlines

Find Deal

Wed, 26 Nov - Wed, 3 Dec

07:00 - 08:15SEA-ADL

30h 45m2 stops

17:10 - 21:02ADL-SEA

22h 22m2 stops

$2,016Multiple Airlines

Find Deal

Sat, 31 Jan - Sun, 8 Feb

07:00 - 08:15SEA-ADL

30h 45m2 stops

19:55 - 05:15ADL-SEA

51h 50m2 stops

$2,066Multiple Airlines

Find Deal

Mon, 24 Nov - Wed, 10 Dec

06:10 - 11:15SEA-ADL

35h 35m2 stops

17:05 - 22:36ADL-SEA

47h 01m2 stops

$2,200Qantas Airways

Find Deal

Sun, 29 Mar - Sat, 4 Apr

16:47 - 11:50SEA-ADL

24h 33m2 stops

11:40 - 17:28ADL-SEA

24h 18m2 stops

$2,257Qantas Airways

Find Deal

Mon, 24 Nov - Wed, 10 Dec

15:40 - 13:55SEA-ADL

28h 45m2 stops

06:10 - 15:01ADL-SEA

26h 21m2 stops

$2,350Air Canada

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Sun, 15 Mar - Thu, 19 Mar

19:32 - 13:45SEA-ADL

24h 43m2 stops

19:00 - 13:23ADL-SEA

35h 53m3 stops

$2,368United Airlines

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Sun, 29 Mar - Sat, 4 Apr

16:30 - 16:50SEA-ADL

30h 50m1 stop

22:40 - 12:45ADL-SEA

31h 35m1 stop

$2,384Qatar Airways

Find Deal

Sun, 29 Mar - Sat, 4 Apr

08:10 - 13:55SEA-ADL

59h 15m3 stops

06:10 - 16:29ADL-SEA

28h 49m2 stops

$2,400United Airlines

Find Deal

Sat, 31 Jan - Sun, 8 Feb

08:05 - 16:50SEA-ADL

39h 15m2 stops

22:40 - 12:45ADL-SEA

31h 35m1 stop

$2,454Qatar Airways

Find Deal

Sun, 29 Mar - Sat, 4 Apr

Qantas Airways flights from Seattle to Adelaide

Our best Qantas Airways deals on Seattle to Adelaide flight tickets

Qantas Airways

29 Mar

SEA06:10Seattle/Tacoma Intl

35h 35m

2 stops

ADL11:15Adelaide

4 Apr

ADL17:05Adelaide

47h 01m

2 stops

SEA22:36Seattle/Tacoma Intl

$2,200

Find similar

Qantas Airways

24 Nov

SEA16:47Seattle/Tacoma Intl

24h 33m

2 stops

ADL11:50Adelaide

10 Dec

ADL11:40Adelaide

24h 18m

2 stops

SEA17:28Seattle/Tacoma Intl

$2,257

Find similar

United Airlines flights from Seattle to Adelaide

Our best United Airlines deals on Seattle to Adelaide flight tickets

United Airlines

29 Mar

SEA19:32Seattle/Tacoma Intl

24h 43m

2 stops

ADL13:45Adelaide

4 Apr

ADL19:00Adelaide

35h 53m

3 stops

SEA13:23Seattle/Tacoma Intl

$2,368

Find similar

United Airlines

31 Jan

SEA08:10Seattle/Tacoma Intl

59h 15m

3 stops

ADL13:55Adelaide

8 Feb

ADL06:10Adelaide

28h 49m

2 stops

SEA16:29Seattle/Tacoma Intl

$2,400

Find similar

United Airlines

31 Jan

SEA17:10Seattle/Tacoma Intl

21h 50m

1 stop

ADL09:30Adelaide

8 Feb

ADL06:10Adelaide

28h 04m

2 stops

SEA15:44Seattle/Tacoma Intl

$2,405

Find similar

Fly from

Fly to

Route

Depart

Return

Price

SeattleAdelaide

SEA - ADL

SEAADL

Seattle/Tacoma Intl

Wed 26/11

11:00-06:15

2 stops48h 45m

Adelaide

Wed 3/12

19:05-09:00

2 stops32h 25m

$1,671

SeattleAdelaide

SEA - ADL

SEAADL

Seattle/Tacoma Intl

Sat 31/1

07:00-08:15

2 stops30h 45m

Adelaide

Sun 8/2

17:10-21:02

2 stops22h 22m

$2,016

SeattleAdelaide

SEA - ADL

SEAADL

Seattle/Tacoma Intl

Mon 24/11

07:00-08:15

2 stops30h 45m

Adelaide

Wed 10/12

19:55-05:15

2 stops51h 50m

$2,066

SeattleAdelaide

SEA - ADL

SEAADL

Seattle/Tacoma Intl

Sun 29/3

06:10-11:15

2 stops35h 35m

Adelaide

Sat 4/4

17:05-22:36

2 stops47h 01m

$2,200

SeattleAdelaide

SEA - ADL

SEAADL

Seattle/Tacoma Intl

Mon 24/11

16:47-11:50

2 stops24h 33m

Adelaide

Wed 10/12

11:40-17:28

2 stops24h 18m

$2,257

SeattleAdelaide

SEA - ADL

SEAADL

Seattle/Tacoma Intl

Sun 15/3

15:40-13:55

2 stops28h 45m

Adelaide

Thu 19/3

06:10-15:01

2 stops26h 21m

$2,350

SeattleAdelaide

SEA - ADL

SEAADL

Seattle/Tacoma Intl

Sun 29/3

19:32-13:45

2 stops24h 43m

Adelaide

Sat 4/4

19:00-13:23

3 stops35h 53m

$2,368

SeattleAdelaide

SEA - ADL

SEAADL

Seattle/Tacoma Intl

Sun 29/3

16:30-16:50

1 stop30h 50m

Adelaide

Sat 4/4

22:40-12:45

1 stop31h 35m

$2,384

SeattleAdelaide

SEA - ADL

SEAADL

Seattle/Tacoma Intl

Sat 31/1

08:10-13:55

3 stops59h 15m

Adelaide

Sun 8/2

06:10-16:29

2 stops28h 49m

$2,400

SeattleAdelaide

SEA - ADL

SEAADL

Seattle/Tacoma Intl

Sun 29/3

08:05-16:50

2 stops39h 15m

Adelaide

Sat 4/4

22:40-12:45

1 stop31h 35m

$2,454

Flights are sorted by cheapest return flights first.

Sorted 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 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 $2,152. 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 $2,239. 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

Direct flights	None

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

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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 21h 50m 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.