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

Qatar Airways and Singapore Airlines are the most popular carriers 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.

$923 Cheap Flights from Seattle to Adelaide in 2025

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Find the cheapest flights from Seattle to Adelaide

Round-trip

One-way

Cheap return flights

12:00 - 11:20SEA-ADL

30h 50m2 stops

06:25 - 20:24ADL-SEA

30h 29m2 stops

$1,654

Find Deal

Mon, 15 Sep - Mon, 22 Sep

17:59 - 10:20SEA-ADL

23h 51m2 stops

14:55 - 20:07ADL-SEA

22h 42m2 stops

$1,676Qantas Airways

Find Deal

Thu, 2 Oct - Thu, 9 Oct

20:00 - 18:10SEA-ADL

27h 40m2 stops

06:10 - 19:16ADL-SEA

31h 36m2 stops

$1,684Air Canada

Find Deal

Sun, 2 Nov - Sun, 9 Nov

21:15 - 16:40SEA-ADL

49h 55m2 stops

19:40 - 10:59ADL-SEA

32h 49m2 stops

$1,805

Find Deal

Sat, 4 Oct - Sat, 11 Oct

08:25 - 09:55SEA-ADL

33h 00m2 stops

06:10 - 22:26ADL-SEA

33h 46m2 stops

$2,178

Find Deal

Fri, 3 Oct - Fri, 10 Oct

16:30 - 15:50SEA-ADL

30h 50m1 stop

18:20 - 12:45ADL-SEA

34h 55m2 stops

$2,310Qatar Airways

Find Deal

Mon, 15 Sep - Mon, 22 Sep

08:25 - 09:55SEA-ADL

33h 00m2 stops

18:35 - 08:45ADL-SEA

31h 40m1 stop

$2,656

Find Deal

Fri, 3 Oct - Fri, 10 Oct

16:30 - 16:50SEA-ADL

30h 50m1 stop

18:20 - 12:45ADL-SEA

35h 55m2 stops

$2,746Qatar Airways

Find Deal

Sat, 4 Oct - Sat, 11 Oct

18:55 - 11:35SEA-ADL

48h 10m3 stops

12:35 - 21:58ADL-SEA

25h 53m2 stops

$2,802Fiji Airways

Find Deal

Mon, 15 Sep - Mon, 22 Sep

13:00 - 11:05SEA-ADL

29h 35m2 stops

06:00 - 21:15ADL-SEA

32h 45m3 stops

$2,965United Airlines

Find Deal

Thu, 2 Oct - Thu, 9 Oct

Qatar Airways flights from Seattle to Adelaide

Our best Qatar Airways deals on Seattle to Adelaide flight tickets

Qatar Airways

15 Sept

SEA16:30Seattle/Tacoma Intl

30h 50m

1 stop

ADL15:50Adelaide

22 Sept

ADL18:20Adelaide

34h 55m

2 stops

SEA12:45Seattle/Tacoma Intl

$2,310

Find similar

Qatar Airways

4 Oct

SEA16:30Seattle/Tacoma Intl

30h 50m

1 stop

ADL16:50Adelaide

11 Oct

ADL18:20Adelaide

35h 55m

2 stops

SEA12:45Seattle/Tacoma Intl

$2,746

Find similar

Qatar Airways

15 Sept

SEA16:30Seattle/Tacoma Intl

30h 50m

1 stop

ADL15:50Adelaide

22 Sept

ADL21:40Adelaide

31h 35m

1 stop

SEA12:45Seattle/Tacoma Intl

$3,462

Find similar

Singapore Airlines flights from Seattle to Adelaide

Our best Singapore Airlines deals on Seattle to Adelaide flight tickets

Singapore Airlines

2 Nov

SEA08:45Seattle/Tacoma Intl

29h 35m

1 stop

ADL08:50Adelaide

9 Nov

ADL18:35Adelaide

37h 54m

2 stops

SEA13:59Seattle/Tacoma Intl

$3,026

Find similar

Singapore Airlines

2 Nov

SEA21:32Seattle/Tacoma Intl

40h 48m

2 stops

ADL08:50Adelaide

9 Nov

ADL18:35Adelaide

46h 06m

3 stops

SEA22:11Seattle/Tacoma Intl

$3,470

Find similar

Fly from

Fly to

Route

Depart

Return

Price

SeattleAdelaide

SEA - ADL

SEAADL

Seattle/Tacoma Intl

Mon 15/9

12:00-11:20

2 stops30h 50m

Adelaide

Mon 22/9

06:25-20:24

2 stops30h 29m

$1,654

SeattleAdelaide

SEA - ADL

SEAADL

Seattle/Tacoma Intl

Thu 2/10

17:59-10:20

2 stops23h 51m

Adelaide

Thu 9/10

14:55-20:07

2 stops22h 42m

$1,676

SeattleAdelaide

SEA - ADL

SEAADL

Seattle/Tacoma Intl

Sun 2/11

20:00-18:10

2 stops27h 40m

Adelaide

Sun 9/11

06:10-19:16

2 stops31h 36m

$1,684

SeattleAdelaide

SEA - ADL

SEAADL

Seattle/Tacoma Intl

Sat 4/10

21:15-16:40

2 stops49h 55m

Adelaide

Sat 11/10

19:40-10:59

2 stops32h 49m

$1,805

SeattleAdelaide

SEA - ADL

SEAADL

Seattle/Tacoma Intl

Fri 3/10

08:25-09:55

2 stops33h 00m

Adelaide

Fri 10/10

06:10-22:26

2 stops33h 46m

$2,178

SeattleAdelaide

SEA - ADL

SEAADL

Seattle/Tacoma Intl

Mon 15/9

16:30-15:50

1 stop30h 50m

Adelaide

Mon 22/9

18:20-12:45

2 stops34h 55m

$2,310

SeattleAdelaide

SEA - ADL

SEAADL

Seattle/Tacoma Intl

Fri 3/10

08:25-09:55

2 stops33h 00m

Adelaide

Fri 10/10

18:35-08:45

1 stop31h 40m

$2,656

SeattleAdelaide

SEA - ADL

SEAADL

Seattle/Tacoma Intl

Sat 4/10

16:30-16:50

1 stop30h 50m

Adelaide

Sat 11/10

18:20-12:45

2 stops35h 55m

$2,746

SeattleAdelaide

SEA - ADL

SEAADL

Seattle/Tacoma Intl

Mon 15/9

18:55-11:35

3 stops48h 10m

Adelaide

Mon 22/9

12:35-21:58

2 stops25h 53m

$2,802

SeattleAdelaide

SEA - ADL

SEAADL

Seattle/Tacoma Intl

Thu 2/10

13:00-11:05

2 stops29h 35m

Adelaide

Thu 9/10

06:00-21:15

3 stops32h 45m

$2,965

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 $2,167. 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 $2,254. 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 23h 51m 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.