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Cheap flights from Seattle to Adelaide from $885

1 adult
1 adult, Economy, 0 bags

Find the cheapest flights from Seattle to Adelaide

Cheap round-trip flights

Enter your travel dates to find the best prices.
Air Canada Logo
7:05 pm - 6:10 pmSEA  Seattle/Tacoma Intl-ADL Adelaide
28h 35m2 stops Vancouver Intl Sydney Kingsford Smith
Air Canada Logo
6:10 am - 9:27 amADL  Adelaide-SEA Seattle/Tacoma Intl
21h 47m2 stops Brisbane Vancouver Intl
$1,250Air Canada
Wed, Nov 11 - Wed, Nov 18
Qantas Airways Logo
5:59 pm - 8:10 amSEA  Seattle/Tacoma Intl-ADL Adelaide
43h 41m2 stops Los Angeles Sydney Kingsford Smith
Qantas Airways Logo
6:30 pm - 12:20 amADL  Adelaide-SEA Seattle/Tacoma Intl
24h 20m2 stops Melbourne Los Angeles
$1,277Qantas Airways
Mon, Nov 16 - Fri, Nov 27
United Airlines Logo
8:18 pm - 2:10 pmSEA  Seattle/Tacoma Intl-ADL Adelaide
23h 22m2 stops San Francisco Melbourne
United Airlines Logo
7:55 pm - 4:22 pmADL  Adelaide-SEA Seattle/Tacoma Intl
38h 57m2 stops Sydney Kingsford Smith San Francisco
$1,288United Airlines
Tue, Nov 24 - Tue, Dec 1
Multiple Airlines Logo
7:00 am - 8:10 amSEA  Seattle/Tacoma Intl-ADL Adelaide
30h 40m2 stops Honolulu Sydney Kingsford Smith
Multiple Airlines Logo
8:05 pm - 9:19 pmADL  Adelaide-SEA Seattle/Tacoma Intl
43h 44m2 stops Sydney Kingsford Smith Honolulu
$1,301Multiple Airlines
Mon, Mar 1 - Mon, Mar 8
Air Canada Logo
3:15 pm - 1:55 pmSEA  Seattle/Tacoma Intl-ADL Adelaide
28h 10m2 stops Vancouver Intl Sydney Kingsford Smith
Air Canada Logo
6:10 am - 6:22 pmADL  Adelaide-SEA Seattle/Tacoma Intl
30h 42m2 stops Brisbane Vancouver Intl
$1,310Air Canada
Fri, Feb 12 - Sun, Feb 21
Air Canada Logo
7:05 pm - 7:10 pmSEA  Seattle/Tacoma Intl-ADL Adelaide
29h 35m2 stops Vancouver Intl Sydney Kingsford Smith
Air Canada Logo
6:10 am - 2:35 pmADL  Adelaide-SEA Seattle/Tacoma Intl
25h 55m2 stops Brisbane Vancouver Intl
$1,310Air Canada
Wed, Feb 17 - Fri, Mar 19
Air Canada Logo
3:15 pm - 1:55 pmSEA  Seattle/Tacoma Intl-ADL Adelaide
28h 10m2 stops Vancouver Intl Sydney Kingsford Smith
Air Canada Logo
6:00 am - 6:22 pmADL  Adelaide-SEA Seattle/Tacoma Intl
30h 52m2 stops Sydney Kingsford Smith Vancouver Intl
$1,315Air Canada
Fri, Feb 12 - Sun, Feb 21
Air Canada Logo
3:15 pm - 1:55 pmSEA  Seattle/Tacoma Intl-ADL Adelaide
28h 10m2 stops Vancouver Intl Sydney Kingsford Smith
Air Canada Logo
2:30 pm - 9:32 amADL  Adelaide-SEA Seattle/Tacoma Intl
37h 32m2 stops Sydney Kingsford Smith Vancouver Intl
$1,320Air Canada
Sun, Feb 14 - Sat, Feb 20
United Airlines Logo
7:35 pm - 10:55 amSEA  Seattle/Tacoma Intl-ADL Adelaide
44h 50m2 stops San Francisco Sydney Kingsford Smith
United Airlines Logo
7:55 pm - 9:21 pmADL  Adelaide-SEA Seattle/Tacoma Intl
43h 56m3 stops Sydney Kingsford Smith Los Angeles Denver Intl
$1,389United Airlines
Thu, Nov 26 - Thu, Dec 3
United Airlines Logo
8:30 am - 2:10 pmSEA  Seattle/Tacoma Intl-ADL Adelaide
35h 10m2 stops Los Angeles Melbourne
United Airlines Logo
7:15 am - 9:12 pmADL  Adelaide-SEA Seattle/Tacoma Intl
32h 27m3 stops Melbourne Los Angeles Denver Intl
$1,596United Airlines
Mon, Mar 1 - Mon, Mar 8

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Qantas Airways flights from Seattle to Adelaide

Our best Qantas Airways deals on Seattle to Adelaide flight tickets
Qantas Airways
Nov 16
SEA5:59 pmSeattle/Tacoma Intl
43h 41m
2 stops
ADL8:10 amAdelaide
Nov 27
ADL6:30 pmAdelaide
24h 20m
2 stops
SEA12:20 amSeattle/Tacoma Intl
$1,277
Qantas Airways
Dec 11
SEA3:55 pmSeattle/Tacoma Intl
32h 55m
2 stops
ADL7:20 pmAdelaide
Jan 5
ADL5:20 pmAdelaide
41h 57m
2 stops
SEA4:47 pmSeattle/Tacoma Intl
$2,262

United Airlines flights from Seattle to Adelaide

Our best United Airlines deals on Seattle to Adelaide flight tickets
United Airlines
Nov 24
SEA8:18 pmSeattle/Tacoma Intl
23h 22m
2 stops
ADL2:10 pmAdelaide
Dec 1
ADL7:55 pmAdelaide
38h 57m
2 stops
SEA4:22 pmSeattle/Tacoma Intl
$1,288
United Airlines
Nov 26
SEA7:35 pmSeattle/Tacoma Intl
44h 50m
2 stops
ADL10:55 amAdelaide
Dec 3
ADL7:55 pmAdelaide
43h 56m
3 stops
SEA9:21 pmSeattle/Tacoma Intl
$1,389
United Airlines
Mar 1
SEA8:30 amSeattle/Tacoma Intl
35h 10m
2 stops
ADL2:10 pmAdelaide
Mar 8
ADL7:15 amAdelaide
32h 27m
3 stops
SEA9:12 pmSeattle/Tacoma Intl
$1,596

momondo Fare Finder

 
Use the filters below to find and compare flights from Seattle to Adelaide that are best for you.

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Quickest round-trip

SeattleAdelaide

SEA Seattle/Tacoma Intl - ADL Adelaide

SEAADL

Seattle/Tacoma Intl

Wed 11/11

7:05 pm-6:10 pm

2 stops28h 35m

Adelaide

Wed 11/18

6:10 am-9:27 am

2 stops21h 47m

$1,250

SeattleAdelaide

SEA Seattle/Tacoma Intl - ADL Adelaide

SEAADL

Seattle/Tacoma Intl

Mon 11/16

5:59 pm-8:10 am

2 stops43h 41m

Adelaide

Fri 11/27

6:30 pm-12:20 am

2 stops24h 20m

$1,277

SeattleAdelaide

SEA Seattle/Tacoma Intl - ADL Adelaide

SEAADL

Seattle/Tacoma Intl

Tue 11/24

8:18 pm-2:10 pm

2 stops23h 22m

Adelaide

Tue 12/1

7:55 pm-4:22 pm

2 stops38h 57m

$1,288

SeattleAdelaide

SEA Seattle/Tacoma Intl - ADL Adelaide

SEAADL

Seattle/Tacoma Intl

Mon 3/1

7:00 am-8:10 am

2 stops30h 40m

Adelaide

Mon 3/8

8:05 pm-9:19 pm

2 stops43h 44m

$1,301

SeattleAdelaide

SEA Seattle/Tacoma Intl - ADL Adelaide

SEAADL

Seattle/Tacoma Intl

Fri 2/12

3:15 pm-1:55 pm

2 stops28h 10m

Adelaide

Sun 2/21

6:10 am-6:22 pm

2 stops30h 42m

$1,310

SeattleAdelaide

SEA Seattle/Tacoma Intl - ADL Adelaide

SEAADL

Seattle/Tacoma Intl

Wed 2/17

7:05 pm-7:10 pm

2 stops29h 35m

Adelaide

Fri 3/19

6:10 am-2:35 pm

2 stops25h 55m

$1,310

SeattleAdelaide

SEA Seattle/Tacoma Intl - ADL Adelaide

SEAADL

Seattle/Tacoma Intl

Fri 2/12

3:15 pm-1:55 pm

2 stops28h 10m

Adelaide

Sun 2/21

6:00 am-6:22 pm

2 stops30h 52m

$1,315

SeattleAdelaide

SEA Seattle/Tacoma Intl - ADL Adelaide

SEAADL

Seattle/Tacoma Intl

Sun 2/14

3:15 pm-1:55 pm

2 stops28h 10m

Adelaide

Sat 2/20

2:30 pm-9:32 am

2 stops37h 32m

$1,320

SeattleAdelaide

SEA Seattle/Tacoma Intl - ADL Adelaide

SEAADL

Seattle/Tacoma Intl

Thu 11/26

7:35 pm-10:55 am

2 stops44h 50m

Adelaide

Thu 12/3

7:55 pm-9:21 pm

3 stops43h 56m

$1,389

SeattleAdelaide

SEA Seattle/Tacoma Intl - ADL Adelaide

SEAADL

Seattle/Tacoma Intl

Mon 3/1

8:30 am-2:10 pm

2 stops35h 10m

Adelaide

Mon 3/8

7:15 am-9:12 pm

3 stops32h 27m

$1,596

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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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 round-trip 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

Best Price Found

$885

Fastest flight time

26h 15m

Direct flights

None
The best one-way flight to Adelaide from Seattle in the past 72 hours is $885. The best round-trip flight deal from Seattle to Adelaide found on momondo in the last 72 hours is $1,250.
The fastest flight from Seattle to Adelaide takes 26h 15m
There are no direct flights from Seattle to Adelaide. There are no popular flight routes from Seattle to Adelaide.
Search flight deals

Frequently asked questions about flying from Seattle to Adelaide

  • How far is Seattle/Tacoma Intl to Adelaide by plane?

    A flight from Seattle/Tacoma Intl to Adelaide will travel around 8330.9 mi. Flights usually cover this in 26h 15m, depending on flying conditions and air traffic around both airports.

  • 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 are refreshed on a daily basis.

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

    Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. 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 travel and health documents required for your trip to Adelaide Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Adelaide Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

Frequently asked questions about flying from Seattle to Adelaide

  • How do I get Price Alerts for flights from Seattle to Adelaide?

    Confirm your travel details to search for the latest offers for flights from Seattle to Adelaide. While browsing offers there will be the option to toggle “Price Alerts”. You’ll then receive updates when prices for the flight route increase or decrease.

  • How can I save money on flights from Seattle to Adelaide with momondo?

    Leverage our AI within our “Price Forecast” tool, which predicts if it’s better to book now or wait until prices decrease. You can strategically pick the best days to fly and save money on your trip by using our “Price Calendar” tool. “Explore” shows an overview of how much it costs to fly to anywhere from a selected city or airport. Our “Discover” content is a great option for travel inspiration and money-saving tips, while “Price Alerts” will update you when prices change, so you can book when fares are right.

  • How does momondo find its flight prices?

    momondo shows deals across 700+ competitors all at once. momondo is active in 30 international markets, so you can have access to a wide range of options from airlines and OTAs alike.

Traveling to a place near Adelaide?

Book flights to Adelaide if you plan to visit one of these locations
Glenelg

Why use momondo?

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

Finding the right flight to Adelaide from Seattle is quick and easy when you have a range of options in front of you, from reputable agents and recognisable airlines. Options that can then be filtered down to find the best fit. That is what momondo does. We make finding flights to Adelaide quick and easy, saving you time and money.

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

Flights from Seattle to Adelaide with flexible booking policies can be found by using the search form above and then selecting our dedicated flexible booking filter, which will highlight only the flights where this policy is applied.

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

Once you have performed a search in the form on the page, momondo provides useful filters and insights. We can show you the cheapest days and times to fly as well as help filter your options to help you make an informed choice when booking flights to Adelaide from Seattle.

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

If you are not ready to book a flight from Seattle to Adelaide now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to Adelaide and let you know when they change.

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