$602+ Cheap flights from Seattle (SEA) to Adelaide (ADL)
This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 11/7. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — ADL
Oct 17 — Oct 241
Round-trip
1 adult, Economy
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Find cheap flights from Seattle to Adelaide with Cheapflights
1. Tell us where you want to go
Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”2. Select your favorite providers
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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 September 17, 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 September 17, 2026.
This Air Canada deal was found by Cheapflights users on 9/13. 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.
Wed 10/217:15 pm -
2 stops25h 35m
Sun 10/256:10 am -
2 stops25h 57m
Deal found 9/13![Multiple Airlines logo]()
$1,169
This Priceline deal was found by Cheapflights users on 9/16. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/317:05 pm -
2 stops33h 55m
Sat 11/76:10 am -
2 stops30h 42m
Deal found 9/16![Air Canada logo]()
$1,210
This Air Canada deal was found by Cheapflights users on 9/14. 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 10/297:05 pm -
2 stops24h 00m
Thu 11/56:10 am -
2 stops21h 52m
Deal found 9/14![Multiple Airlines logo]()
$1,244
This oojo deal was found by Cheapflights users on 9/16. 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.
Tue 12/19:15 pm -
2 stops43h 10m
Thu 12/1012:05 pm -
2 stops24h 38m
Deal found 9/16![Air New Zealand logo]()
$1,250
This Air Canada deal was found by Cheapflights users on 9/17. 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.
Sat 10/177:15 pm -
2 stops29h 10m
Sat 10/246:00 am -
2 stops30h 02m
Deal found 9/17![Multiple Airlines logo]()
$1,296
This United Airlines deal was found by Cheapflights users on 9/16. 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.
Tue 12/11:14 pm -
2 stops32h 36m
Thu 12/107:15 am -
3 stops32h 36m
Deal found 9/16![United Airlines logo]()
$1,297
This Air Canada deal was found by Cheapflights users on 9/15. 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.
Sat 10/318:40 am -
2 stops44h 20m
Wed 11/46:10 am -
2 stops21h 52m
Deal found 9/15![Air Canada logo]()
$1,435
This oojo deal was found by Cheapflights users on 9/16. 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.
Thu 10/1511:55 am -
2 stops41h 10m
Thu 10/228:00 pm -
2 stops43h 04m
Deal found 9/16![Multiple Airlines logo]()
$1,474
This United Airlines deal was found by Cheapflights users on 9/17. 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.
Sat 10/2411:59 pm -
2 stops41h 26m
Thu 12/318:40 am -
2 stops30h 30m
Deal found 9/17![United Airlines logo]()
$1,490
This Alaska Airlines deal was found by Cheapflights users on 9/14. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/127:00 am -
2 stops31h 35m
Mon 10/197:10 pm -
2 stops52h 24m
Deal found 9/14![Multiple Airlines logo]()
$1,621
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 September 17, 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 September 17, 2026.
This Air Canada deal was found by Cheapflights users on 9/16. 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.
Fri 2/127:05 pm -
2 stops32h 10m
Sun 2/216:10 am -
2 stops21h 52m
Deal found 9/16![Multiple Airlines logo]()
$1,203
This United Airlines deal was found by Cheapflights users on 9/12. 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 1/2810:45 am -
1 stop28h 15m
Sun 2/77:55 pm -
2 stops34h 15m
Deal found 9/12![United Airlines logo]()
$1,307
This Air Canada deal was found by Cheapflights users on 9/14. 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.
Sat 10/313:15 pm -
2 stops37h 45m
Wed 11/46:10 am -
2 stops26h 57m
Deal found 9/14![Air Canada logo]()
$1,436
This oojo deal was found by Cheapflights users on 9/16. 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 2/128:40 am -
1 stop38h 10m
Sun 2/2110:15 am -
1 stop63h 20m
Deal found 9/16![Singapore Airlines logo]()
$1,646
This oojo deal was found by Cheapflights users on 9/17. 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.
Sun 2/143:50 pm -
2 stops34h 20m
Sat 2/2010:00 pm -
1 stop32h 10m
Deal found 9/17![Qatar Airways logo]()
$1,655
This United Airlines deal was found by Cheapflights users on 9/13. 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 2/115:30 pm -
2 stops28h 20m
Sat 2/276:10 am -
3 stops33h 32m
Deal found 9/13![United Airlines logo]()
$1,380
This United Airlines deal was found by Cheapflights users on 9/17. 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.
Sat 10/2411:59 pm -
2 stops41h 26m
Thu 12/318:40 am -
2 stops30h 30m
Deal found 9/17![United Airlines logo]()
$1,490
Last-minute flights from Seattle to AdelaideDiscover last-minute flight deals from Seattle to Adelaide. Data last updated September 17, 2026 and is based on user searches.
Discover last-minute flight deals from Seattle to Adelaide. Data last updated September 17, 2026 and is based on user searches.
This Alaska Airlines deal was found by Cheapflights users on 9/14. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/127:00 am -
2 stops31h 35m
Mon 10/197:10 pm -
2 stops52h 24m
Deal found 9/14![Multiple Airlines logo]()
$1,621
This oojo deal was found by Cheapflights users on 9/16. 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.
Thu 10/1511:55 am -
2 stops41h 10m
Thu 10/228:00 pm -
2 stops43h 04m
Deal found 9/16![Multiple Airlines logo]()
$1,474
This Air Canada deal was found by Cheapflights users on 9/17. 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.
Sat 10/177:15 pm -
2 stops29h 10m
Sat 10/246:00 am -
2 stops30h 02m
Deal found 9/17![Multiple Airlines logo]()
$1,296
This Air Canada deal was found by Cheapflights users on 9/13. 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.
Wed 10/217:15 pm -
2 stops25h 35m
Sun 10/256:10 am -
2 stops25h 57m
Deal found 9/13![Multiple Airlines logo]()
$1,169
This oojo deal was found by Cheapflights users on 9/13. 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 10/214:25 pm -
2 stops48h 10m
Sun 10/2510:00 pm -
1 stop32h 10m
Deal found 9/13![Qatar Airways logo]()
$1,694
This United Airlines deal was found by Cheapflights users on 9/17. 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.
Sat 10/2411:59 pm -
2 stops41h 26m
Thu 12/318:40 am -
2 stops30h 30m
Deal found 9/17![United Airlines logo]()
$1,490
This Air Canada deal was found by Cheapflights users on 9/14. 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 10/297:05 pm -
2 stops24h 00m
Thu 11/56:10 am -
2 stops21h 52m
Deal found 9/14![Multiple Airlines logo]()
$1,244
This oojo deal was found by Cheapflights users on 9/14. 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.
Thu 10/299:40 am -
1 stop38h 10m
Thu 11/56:35 pm -
1 stop31h 00m
Deal found 9/14![Singapore Airlines logo]()
$1,677
This Priceline deal was found by Cheapflights users on 9/16. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/317:05 pm -
2 stops33h 55m
Sat 11/76:10 am -
2 stops30h 42m
Deal found 9/16![Air Canada logo]()
$1,210
This Air Canada deal was found by Cheapflights users on 9/15. 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.
Sat 10/318:40 am -
2 stops44h 20m
Wed 11/46:10 am -
2 stops21h 52m
Deal found 9/15![Air Canada logo]()
$1,435
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 September 17, 2026.
Search for one-way flight options from Seattle to Adelaide. Find affordable one-way fares based on user searches. Data last updated September 17, 2026.
This Kiwi.com deal was found by Cheapflights users on 9/14. 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.
Sat 11/78:09 pm -
2 stops45h 56m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/14![Multiple Airlines logo]()
$602
This Kiwi.com deal was found by Cheapflights users on 9/14. 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.
Wed 11/118:09 pm -
2 stops51h 36m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/14![Multiple Airlines logo]()
$607
This Kiwi.com deal was found by Cheapflights users on 9/14. 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 11/108:09 pm -
2 stops55h 31m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/14![Multiple Airlines logo]()
$611
This Kiwi.com deal was found by Cheapflights users on 9/14. 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.
Mon 11/98:09 pm -
2 stops52h 21m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/14![Multiple Airlines logo]()
$616
This Kiwi.com deal was found by Cheapflights users on 9/14. 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.
Sun 11/88:09 pm -
2 stops46h 56m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/14![Multiple Airlines logo]()
$637
This Kiwi.com deal was found by Cheapflights users on 9/14. 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.
Thu 11/128:09 pm -
2 stops43h 31m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/14![Multiple Airlines logo]()
$690
This Cathay Pacific deal was found by Cheapflights users on 9/14. 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 Cathay Pacific is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/910:25 am -
1 stop29h 35m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/14![Cathay Pacific logo]()
$694
This Kiwi.com deal was found by Cheapflights users on 9/14. 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.
Fri 11/1312:02 pm -
3 stops39h 43m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/14![Multiple Airlines logo]()
$774
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 September 17, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $1,169 (Air Canada) |
One-way from | $602 (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 7,457,451 searches. Data last updated September 17, 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
SeattleAdelaide
SEA Seattle/Tacoma Intl - ADL Adelaide
SEAADL
Seattle/Tacoma Intl
Wed 11/11
10:25 am-10:30 am
1 stop29h 35m
Adelaide
Wed 12/31
12:00 am-6:30 am
Nonstop0h 00m
$694
SeattleAdelaide
SEA Seattle/Tacoma Intl - ADL Adelaide
SEAADL
Seattle/Tacoma Intl
Mon 11/9
10:25 am-10:30 am
1 stop29h 35m
Adelaide
Wed 12/31
12:00 am-6:30 am
Nonstop0h 00m
$694
SeattleAdelaide
SEA Seattle/Tacoma Intl - ADL Adelaide
SEAADL
Seattle/Tacoma Intl
Thu 11/12
1:50 pm-6:15 pm
3 stops33h 55m
Adelaide
Wed 12/31
12:00 am-6:30 am
Nonstop0h 00m
$723
Quickest round-trip
SeattleAdelaide
SEA Seattle/Tacoma Intl - ADL Adelaide
SEAADL
Seattle/Tacoma Intl
Mon 10/12
4:37 pm-11:55 am
2 stops25h 48m
Adelaide
Wed 12/31
12:00 am-6:30 am
Nonstop0h 00m
$858
SeattleAdelaide
SEA Seattle/Tacoma Intl - ADL Adelaide
SEAADL
Seattle/Tacoma Intl
Sat 11/7
7:00 am-9:35 am
3 stops32h 05m
Adelaide
Wed 12/31
12:00 am-6:30 am
Nonstop0h 00m
$887
SeattleAdelaide
SEA Seattle/Tacoma Intl - ADL Adelaide
SEAADL
Seattle/Tacoma Intl
Sat 11/7
3:50 pm-3:55 pm
1 stop29h 35m
Adelaide
Wed 12/31
12:00 am-6:30 am
Nonstop0h 00m
$1,117
SeattleAdelaide
SEA Seattle/Tacoma Intl - ADL Adelaide
SEAADL
Seattle/Tacoma Intl
Fri 2/12
7:05 pm-9:45 pm
2 stops32h 10m
Adelaide
Sun 2/21
6:10 am-9:32 am
2 stops21h 52m
$1,203
SeattleAdelaide
SEA Seattle/Tacoma Intl - ADL Adelaide
SEAADL
Seattle/Tacoma Intl
Thu 1/28
10:45 am-9:30 am
1 stop28h 15m
Adelaide
Sun 2/7
7:55 pm-11:40 am
2 stops34h 15m
$1,307
SeattleAdelaide
SEA Seattle/Tacoma Intl - ADL Adelaide
SEAADL
Seattle/Tacoma Intl
Thu 2/11
5:30 pm-4:20 pm
2 stops28h 20m
Adelaide
Sat 2/27
6:10 am-9:12 pm
3 stops33h 32m
$1,380
SeattleAdelaide
SEA Seattle/Tacoma Intl - ADL Adelaide
SEAADL
Seattle/Tacoma Intl
Sat 10/31
3:15 pm-10:30 pm
2 stops37h 45m
Adelaide
Wed 11/4
6:10 am-2:37 pm
2 stops26h 57m
$1,436
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.
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