$596+ Cheap flights from Seattle (SEA) to Adelaide (ADL)
This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 8/25. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — ADL
Jul 28 — Aug 41
Round-trip
1 adult, Economy
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Find cheap flights from Seattle to Adelaide with Cheapflights
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Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.Cheap flight deals from Seattle to Adelaide
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Last-minute
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Cheapest flights from Seattle to AdelaideExplore the most affordable flight options available from Seattle to Adelaide. Find the lowest fares from popular airlines and budget airlines, with prices last updated on June 28, 2026.
Explore the most affordable flight options available from Seattle to Adelaide. Find the lowest fares from popular airlines and budget airlines, with prices last updated on June 28, 2026.
This FlightHub deal was found by Cheapflights users on 6/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/306:36 pm
SEA
- ADL
2 stops23h 59m
Qantas Airways
Tue 8/2511:50 am
ADL
- SEA
2 stops24h 19m
Qantas Airways
Deal found 6/28![Qantas Airways logo]()
$1,262
This Qantas Airways deal was found by Cheapflights users on 6/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Qantas Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/126:10 pm
SEA
- ADL
2 stops24h 25m
Multiple Airlines
Wed 8/191:25 pm
ADL
- SEA
2 stops22h 44m
Multiple Airlines
Deal found 6/28![Multiple Airlines logo]()
$1,285
This FlightHub deal was found by Cheapflights users on 6/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/27:20 pm
SEA
- ADL
2 stops30h 20m
Multiple Airlines
Sun 8/168:00 pm
ADL
- SEA
2 stops34h 52m
Multiple Airlines
Deal found 6/28![Multiple Airlines logo]()
$1,292
This oojo deal was found by Cheapflights users on 6/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/217:20 am
SEA
- ADL
2 stops22h 45m
Multiple Airlines
Sat 9/512:40 pm
ADL
- SEA
2 stops27h 43m
Multiple Airlines
Deal found 6/28![Multiple Airlines logo]()
$1,301
This SmartFares deal was found by Cheapflights users on 6/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure SmartFares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/148:00 am
SEA
- ADL
2 stops22h 05m
Multiple Airlines
Fri 8/282:25 pm
ADL
- SEA
2 stops25h 58m
Multiple Airlines
Deal found 6/23![Multiple Airlines logo]()
$1,305
This Air Canada deal was found by Cheapflights users on 6/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/127:05 pm
SEA
- ADL
2 stops24h 30m
Multiple Airlines
Mon 11/306:10 am
ADL
- SEA
2 stops21h 47m
Multiple Airlines
Deal found 6/25![Multiple Airlines logo]()
$1,323
Best flights from Seattle to AdelaideDiscover carefully curated flight deals from Seattle to Adelaide that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated June 28, 2026.
Discover carefully curated flight deals from Seattle to Adelaide that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated June 28, 2026.
This Qantas Airways deal was found by Cheapflights users on 6/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Qantas Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/126:10 pm
SEA
- ADL
2 stops24h 25m
Multiple Airlines
Wed 8/191:25 pm
ADL
- SEA
2 stops22h 44m
Multiple Airlines
Deal found 6/28![Multiple Airlines logo]()
$1,285
This United Airlines deal was found by Cheapflights users on 6/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/26:48 pm
SEA
- ADL
2 stops26h 27m
United Airlines
Sun 8/166:05 am
ADL
- SEA
3 stops31h 40m
United Airlines
Deal found 6/26![United Airlines logo]()
$1,454
This KAYAK deal was found by Cheapflights users on 6/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/144:30 pm
SEA
- ADL
2 stops28h 55m
ANA
Fri 8/286:00 am
ADL
- SEA
3 stops29h 02m
ANA
Deal found 6/23![ANA logo]()
$1,832
This Qatar Airways deal was found by Cheapflights users on 6/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Qatar Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/24:25 pm
SEA
- ADL
1 stop30h 05m
Qatar Airways
Sun 8/166:20 pm
ADL
- SEA
2 stops34h 55m
Qatar Airways
Deal found 6/26![Qatar Airways logo]()
$1,893
This FlightHub deal was found by Cheapflights users on 6/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/23:00 pm
SEA
- ADL
2 stops27h 40m
Multiple Airlines
Sun 8/168:00 pm
ADL
- SEA
2 stops30h 37m
Multiple Airlines
Deal found 6/27![Multiple Airlines logo]()
$1,292
This SmartFares deal was found by Cheapflights users on 6/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure SmartFares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/148:00 am
SEA
- ADL
2 stops22h 05m
Multiple Airlines
Fri 8/282:25 pm
ADL
- SEA
2 stops25h 58m
Multiple Airlines
Deal found 6/23![Multiple Airlines logo]()
$1,305
This United Airlines deal was found by Cheapflights users on 6/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/293:27 pm
SEA
- ADL
2 stops28h 13m
United Airlines
Tue 12/88:40 am
ADL
- SEA
2 stops25h 44m
United Airlines
Deal found 6/27![United Airlines logo]()
$1,459
This United Airlines deal was found by Cheapflights users on 6/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/207:35 pm
SEA
- ADL
2 stops25h 40m
United Airlines
Thu 9/36:05 am
ADL
- SEA
2 stops26h 39m
United Airlines
Deal found 6/25![United Airlines logo]()
$1,540
This SmartFares deal was found by Cheapflights users on 6/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure SmartFares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/84:20 pm
SEA
- ADL
2 stops37h 45m
Multiple Airlines
Tue 7/212:25 pm
ADL
- SEA
2 stops26h 04m
Multiple Airlines
Deal found 6/24![Multiple Airlines logo]()
$1,557
Last-minute flights from Seattle to AdelaideDiscover last-minute flight deals from Seattle to Adelaide. Data last updated June 28, 2026 and is based on user searches.
Discover last-minute flight deals from Seattle to Adelaide. Data last updated June 28, 2026 and is based on user searches.
This FlightHub deal was found by Cheapflights users on 6/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/306:36 pm
SEA
- ADL
2 stops23h 59m
Qantas Airways
Tue 8/2511:50 am
ADL
- SEA
2 stops24h 19m
Qantas Airways
Deal found 6/28![Qantas Airways logo]()
$1,262
This BusinessClass deal was found by Cheapflights users on 6/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure BusinessClass is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/309:10 pm
SEA
- ADL
2 stops32h 55m
Multiple Airlines
Tue 8/2512:40 pm
ADL
- SEA
2 stops27h 43m
Multiple Airlines
Deal found 6/26![Multiple Airlines logo]()
$1,412
This oojo deal was found by Cheapflights users on 6/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/15:10 pm
SEA
- ADL
2 stops26h 15m
Multiple Airlines
Fri 7/38:00 pm
ADL
- SEA
2 stops40h 31m
Multiple Airlines
Deal found 6/27![Multiple Airlines logo]()
$1,673
This Air Canada deal was found by Cheapflights users on 6/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 7/67:20 pm
SEA
- ADL
2 stops25h 40m
Multiple Airlines
Fri 7/247:35 pm
ADL
- SEA
2 stops31h 02m
Multiple Airlines
Deal found 6/27![Multiple Airlines logo]()
$1,324
This American Airlines deal was found by Cheapflights users on 6/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 7/62:20 pm
SEA
- ADL
2 stops26h 35m
American Airlines
Fri 7/241:25 pm
ADL
- SEA
2 stops24h 50m
American Airlines
Deal found 6/23![American Airlines logo]()
$1,488
This United Airlines deal was found by Cheapflights users on 6/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 7/67:05 pm
SEA
- ADL
2 stops23h 20m
United Airlines
Fri 7/246:05 am
ADL
- SEA
3 stops31h 35m
United Airlines
Deal found 6/27![United Airlines logo]()
$1,511
This SmartFares deal was found by Cheapflights users on 6/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure SmartFares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/84:20 pm
SEA
- ADL
2 stops37h 45m
Multiple Airlines
Tue 7/212:25 pm
ADL
- SEA
2 stops26h 04m
Multiple Airlines
Deal found 6/24![Multiple Airlines logo]()
$1,557
One-way flights from Seattle to AdelaideSearch for one-way flight options from Seattle to Adelaide. Find affordable one-way fares based on user searches. Data last updated June 28, 2026.
Search for one-way flight options from Seattle to Adelaide. Find affordable one-way fares based on user searches. Data last updated June 28, 2026.
This Kiwi.com deal was found by Cheapflights users on 6/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/258:10 pm
SEA
- ADL
3 stops55h 00m
Multiple Airlines
Deal found 6/26![Multiple Airlines logo]()
$596
This Gotogate deal was found by Cheapflights users on 6/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/254:25 pm
SEA
- ADL
1 stop30h 05m
Qatar Airways
Deal found 6/26![Qatar Airways logo]()
$1,144
This Gotogate deal was found by Cheapflights users on 6/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/255:10 pm
SEA
- ADL
2 stops27h 55m
Qantas Airways
Deal found 6/26![Qantas Airways logo]()
$1,441
This Singapore Airlines deal was found by Cheapflights users on 6/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Singapore Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/2510:15 am
SEA
- ADL
1 stop37h 35m
Singapore Airlines
Deal found 6/26![Singapore Airlines logo]()
$2,117
Find flight deals from Seattle to Adelaide
Discover tips and strategies to find the most affordable flight options for your journey from Seattle (SEA) to Adelaide (ADL). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated June 28, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $1,292 (FlightHub) |
One-way from | $596 (Kiwi.com) |
Cheapflights Fare Finder
Customize your flight search to find flights from Seattle to Adelaide that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated June 28, 2026.
Use the filters below to find and compare flights from Seattle to Adelaide that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
Quickest round-trip
SeattleAdelaide
SEA - ADL
SEAADL
Seattle/Tacoma Intl
Wed 8/12
6:10 pm-11:05 am
2 stops24h 25m
Adelaide
Wed 8/19
1:25 pm-7:39 pm
2 stops22h 44m
$1,285
SeattleAdelaide
SEA - ADL
SEAADL
Seattle/Tacoma Intl
Sun 8/2
3:00 pm-11:10 am
2 stops27h 40m
Adelaide
Sun 8/16
8:00 pm-10:07 am
2 stops30h 37m
$1,292
SeattleAdelaide
SEA - ADL
SEAADL
Seattle/Tacoma Intl
Fri 8/14
8:00 am-10:35 pm
2 stops22h 05m
Adelaide
Fri 8/28
2:25 pm-11:53 pm
2 stops25h 58m
$1,305
SeattleAdelaide
SEA - ADL
SEAADL
Seattle/Tacoma Intl
Sun 8/2
6:48 pm-1:45 pm
2 stops26h 27m
Adelaide
Sun 8/16
6:05 am-9:15 pm
3 stops31h 40m
$1,454
SeattleAdelaide
SEA - ADL
SEAADL
Seattle/Tacoma Intl
Sun 11/29
3:27 pm-2:10 pm
2 stops28h 13m
Adelaide
Tue 12/8
8:40 am-3:54 pm
2 stops25h 44m
$1,459
SeattleAdelaide
SEA - ADL
SEAADL
Seattle/Tacoma Intl
Thu 8/20
7:35 pm-1:45 pm
2 stops25h 40m
Adelaide
Thu 9/3
6:05 am-4:14 pm
2 stops26h 39m
$1,540
SeattleAdelaide
SEA - ADL
SEAADL
Seattle/Tacoma Intl
Wed 7/8
4:20 pm-10:35 pm
2 stops37h 45m
Adelaide
Tue 7/21
2:25 pm-11:59 pm
2 stops26h 04m
$1,557
SeattleAdelaide
SEA - ADL
SEAADL
Seattle/Tacoma Intl
Fri 8/14
4:30 pm-1:55 pm
2 stops28h 55m
Adelaide
Fri 8/28
6:00 am-6:32 pm
3 stops29h 02m
$1,832
SeattleAdelaide
SEA - ADL
SEAADL
Seattle/Tacoma Intl
Sun 8/2
4:25 pm-3:00 pm
1 stop30h 05m
Adelaide
Sun 8/16
6:20 pm-12:45 pm
2 stops34h 55m
$1,893
Cheapest one-way
SeattleAdelaide
SEA - ADL
SEAADL
Seattle/Tacoma Intl
Tue 8/25
8:52 pm-8:10 am
2 stops42h 48m
$753
Showing 1-10 of 13 resultsSorted by cheapest first
- Most accurate provider: When it comes to deals on Seattle-Adelaide flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Seattle-Adelaide flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Seattle-Adelaide flight searches over the past month and is updated monthly.
- Most trusted provider: When it comes to deals on Seattle-Adelaide flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Seattle-Adelaide flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.
Best time to book a flight from Seattle to Adelaide
Have a flexible travel schedule? Discover the best time to fly to Adelaide from Seattle with our price prediction graph.
SEA-ADL
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.
Related info for your journey
Find useful and relevant information for your journey from Seattle to Adelaide. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
Traveling to a place near Adelaide?
Book flights to Adelaide if you plan to visit one of these locationsGlenelg
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