$646+ 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 11/12. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — ADL
Nov 23 — Nov 301
Round-trip
1 adult, Economy
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Find cheap flights from Seattle to Adelaide with Cheapflights
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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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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 October 24, 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 October 24, 2026.
This United Airlines deal was found by Cheapflights users on 10/23. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/81:14 pm -
2 stops32h 36m
Tue 12/156:10 am -
2 stops30h 48m
Deal found 10/23![United Airlines logo]()
$1,298
This United Airlines deal was found by Cheapflights users on 10/20. 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 10/315:23 pm -
2 stops26h 07m
Wed 11/47:55 pm -
2 stops42h 12m
Deal found 10/20![United Airlines logo]()
$1,318
This oojo deal was found by Cheapflights users on 10/23. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/236:03 pm -
2 stops46h 27m
Mon 11/307:10 pm -
2 stops36h 28m
Deal found 10/23![Qantas Airways logo]()
$1,326
This Bravofly deal was found by Cheapflights users on 10/21. 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 Bravofly is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/65:42 pm -
2 stops25h 18m
Sun 12/136:00 am -
2 stops23h 31m
Deal found 10/21![Qantas Airways logo]()
$1,372
This oojo deal was found by Cheapflights users on 10/19. 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 12/35:42 pm -
2 stops25h 18m
Thu 12/106:00 am -
2 stops25h 32m
Deal found 10/19![Qantas Airways logo]()
$1,431
This oojo deal was found by Cheapflights users on 10/21. 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.
Sat 12/53:55 pm -
2 stops27h 20m
Sat 12/126:00 am -
2 stops23h 31m
Deal found 10/21![Qantas Airways logo]()
$1,445
This Mytrip deal was found by Cheapflights users on 10/23. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/2310:25 am -
1 stop29h 35m
Mon 11/306:05 am -
2 stops31h 10m
Deal found 10/23![Multiple Airlines logo]()
$1,512
This United Airlines deal was found by Cheapflights users on 10/21. 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 12/512:25 pm -
2 stops30h 05m
Sat 12/127:15 am -
3 stops32h 36m
Deal found 10/21![United Airlines logo]()
$1,583
This Qantas Airways deal was found by Cheapflights users on 10/22. 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.
Tue 12/223:30 pm -
2 stops32h 25m
Tue 12/292:30 pm -
2 stops27h 13m
Deal found 10/22![Qantas Airways logo]()
$1,601
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 October 24, 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 October 24, 2026.
This Air Canada deal was found by Cheapflights users on 10/24. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 2/127:05 pm -
2 stops24h 30m
Sun 2/216:00 am -
2 stops22h 02m
Deal found 10/24![Multiple Airlines logo]()
$1,096
This United Airlines deal was found by Cheapflights users on 10/23. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/81:14 pm -
2 stops32h 36m
Tue 12/156:10 am -
2 stops30h 48m
Deal found 10/23![United Airlines logo]()
$1,298
This FlightHub deal was found by Cheapflights users on 10/23. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 2/1210:03 am -
2 stops29h 57m
Sun 2/2112:00 pm -
1 stop39h 15m
Deal found 10/23![Cathay Pacific logo]()
$1,397
This oojo deal was found by Cheapflights users on 10/19. 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 12/35:42 pm -
2 stops25h 18m
Thu 12/106:00 am -
2 stops25h 32m
Deal found 10/19![Qantas Airways logo]()
$1,431
This Trip.com deal was found by Cheapflights users on 10/19. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 2/13:50 pm -
1 stop30h 45m
Sat 2/2010:00 pm -
1 stop32h 10m
Deal found 10/19![Qatar Airways logo]()
$1,587
This oojo deal was found by Cheapflights users on 10/23. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 2/148:40 am -
1 stop29h 40m
Sat 2/206:35 pm -
1 stop31h 00m
Deal found 10/23![Singapore Airlines logo]()
$1,925
This United Airlines deal was found by Cheapflights users on 10/21. 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 12/512:25 pm -
2 stops30h 05m
Sat 12/127:15 am -
3 stops32h 36m
Deal found 10/21![United Airlines logo]()
$1,583
This Booking.com deal was found by Cheapflights users on 10/19. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 2/15:47 pm -
3 stops45h 38m
Sat 2/2011:30 am -
2 stops40h 09m
Deal found 10/19![Multiple Airlines logo]()
$1,929
Last-minute flights from Seattle to AdelaideDiscover last-minute flight deals from Seattle to Adelaide. Data last updated October 24, 2026 and is based on user searches.
Discover last-minute flight deals from Seattle to Adelaide. Data last updated October 24, 2026 and is based on user searches.
This United Airlines deal was found by Cheapflights users on 10/20. 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 10/315:23 pm -
2 stops26h 07m
Wed 11/47:55 pm -
2 stops42h 12m
Deal found 10/20![United Airlines logo]()
$1,318
This Cathay Pacific deal was found by Cheapflights users on 10/18. 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.
Sat 10/3111:25 am -
2 stops37h 30m
Wed 11/412:00 pm -
2 stops39h 15m
Deal found 10/18![Cathay Pacific logo]()
$1,623
This Emirates deal was found by Cheapflights users on 10/19. 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 Emirates is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/315:05 pm -
1 stop34h 15m
Wed 11/410:40 pm -
1 stop33h 25m
Deal found 10/19![Emirates logo]()
$2,707
This Qatar Airways deal was found by Cheapflights users on 10/19. 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.
Sat 10/314:50 pm -
1 stop29h 35m
Wed 11/411:00 am -
2 stops67h 45m
Deal found 10/19![Qatar Airways logo]()
$3,027
This Arangrant deal was found by Cheapflights users on 10/21. 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 Arangrant is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/267:21 am -
2 stops34h 04m
Mon 12/286:25 am -
2 stops24h 35m
Deal found 10/21![Qantas Airways logo]()
$6,118
This Arangrant deal was found by Cheapflights users on 10/21. 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 Arangrant is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/271:38 pm -
2 stops29h 22m
Mon 12/286:25 am -
2 stops24h 35m
Deal found 10/21![Qantas Airways logo]()
$6,188
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 October 24, 2026.
Search for one-way flight options from Seattle to Adelaide. Find affordable one-way fares based on user searches. Data last updated October 24, 2026.
This Orbitz deal was found by Cheapflights users on 10/23. 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 Orbitz is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/122:59 pm -
2 stops32h 56m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/23![Alaska Airlines logo]()
$646
This Kiwi.com deal was found by Cheapflights users on 10/22. 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 12/63:55 pm -
2 stops26h 10m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/22![Multiple Airlines logo]()
$664
This Kiwi.com deal was found by Cheapflights users on 10/23. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/131:59 pm -
2 stops48h 06m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/23![Multiple Airlines logo]()
$679
This Kiwi.com deal was found by Cheapflights users on 10/23. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/122:59 pm -
3 stops29h 06m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/23![Multiple Airlines logo]()
$718
This Trip.com deal was found by Cheapflights users on 10/19. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 1/98:40 am -
2 stops51h 05m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/19![Multiple Airlines logo]()
$836
This oojo deal was found by Cheapflights users on 10/22. 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 12/68:40 am -
1 stop29h 40m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/22![Singapore Airlines logo]()
$1,039
This oojo deal was found by Cheapflights users on 10/23. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/138:40 am -
1 stop62h 10m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/23![Singapore Airlines logo]()
$1,079
This Trip.com deal was found by Cheapflights users on 10/19. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 1/93:50 pm -
1 stop30h 45m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/19![Qatar Airways logo]()
$1,121
This Emirates deal was found by Cheapflights users on 10/23. 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 Emirates is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/124:05 pm -
1 stop34h 15m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/23![Emirates logo]()
$9,829
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 October 24, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $1,060 (Travelocity) |
One-way from | $646 (Orbitz) |
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 October 24, 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
Thu 11/12
2:59 pm-6:25 pm
2 stops32h 56m
Adelaide
Wed 12/31
12:00 am-6:30 am
Nonstop0h 00m
$646
Quickest round-trip
SeattleAdelaide
SEA Seattle/Tacoma Intl - ADL Adelaide
SEAADL
Seattle/Tacoma Intl
Sun 12/6
3:55 pm-12:35 pm
2 stops26h 10m
Adelaide
Wed 12/31
12:00 am-6:30 am
Nonstop0h 00m
$664
SeattleAdelaide
SEA Seattle/Tacoma Intl - ADL Adelaide
SEAADL
Seattle/Tacoma Intl
Fri 11/13
1:59 pm-8:35 am
2 stops48h 06m
Adelaide
Wed 12/31
12:00 am-6:30 am
Nonstop0h 00m
$679
SeattleAdelaide
SEA Seattle/Tacoma Intl - ADL Adelaide
SEAADL
Seattle/Tacoma Intl
Sat 1/9
8:40 am-6:15 am
2 stops51h 05m
Adelaide
Wed 12/31
12:00 am-6:30 am
Nonstop0h 00m
$836
SeattleAdelaide
SEA Seattle/Tacoma Intl - ADL Adelaide
SEAADL
Seattle/Tacoma Intl
Fri 2/12
7:05 pm-2:05 pm
2 stops24h 30m
Adelaide
Sun 2/21
6:00 am-9:32 am
2 stops22h 02m
$1,096
SeattleAdelaide
SEA Seattle/Tacoma Intl - ADL Adelaide
SEAADL
Seattle/Tacoma Intl
Tue 12/8
1:14 pm-4:20 pm
2 stops32h 36m
Adelaide
Tue 12/15
6:10 am-6:28 pm
2 stops30h 48m
$1,298
SeattleAdelaide
SEA Seattle/Tacoma Intl - ADL Adelaide
SEAADL
Seattle/Tacoma Intl
Fri 2/12
10:03 am-10:30 am
2 stops29h 57m
Adelaide
Sun 2/21
12:00 pm-8:45 am
1 stop39h 15m
$1,397
SeattleAdelaide
SEA Seattle/Tacoma Intl - ADL Adelaide
SEAADL
Seattle/Tacoma Intl
Thu 12/3
5:42 pm-1:30 pm
2 stops25h 18m
Adelaide
Thu 12/10
6:00 am-1:02 pm
2 stops25h 32m
$1,431
SeattleAdelaide
SEA Seattle/Tacoma Intl - ADL Adelaide
SEAADL
Seattle/Tacoma Intl
Sat 12/5
12:25 pm-1:00 pm
2 stops30h 05m
Adelaide
Sat 12/12
7:15 am-9:21 pm
3 stops32h 36m
$1,583
SeattleAdelaide
SEA Seattle/Tacoma Intl - ADL Adelaide
SEAADL
Seattle/Tacoma Intl
Mon 2/1
3:50 pm-5:05 pm
1 stop30h 45m
Adelaide
Sat 2/20
10:00 pm-11:40 am
1 stop32h 10m
$1,587
Showing 1-10 of 13 resultsSorted by cheapest first
Compare providers for flights from Seattle to Adelaide
Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Seattle to Adelaide in October.
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars |
- 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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