$614+ 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 5/8. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — ADL
Dec 11 — Dec 181
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
We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.3. Compare prices and book
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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Best
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 November 11, 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 November 11, 2026.
This Trip.com deal was found by Cheapflights users on 11/7. 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 12/51:36 pm -
2 stops28h 09m
Sat 12/121:15 pm -
2 stops23h 28m
Deal found 11/7![Multiple Airlines logo]()
$1,211
This Jetabroad deal was found by Cheapflights users on 11/7. 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 Jetabroad is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/263:46 pm -
2 stops25h 59m
Mon 12/71:15 pm -
2 stops23h 10m
Deal found 11/7![Multiple Airlines logo]()
$1,327
This American Airlines deal was found by Cheapflights users on 11/7. 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.
Fri 11/274:40 pm -
2 stops26h 20m
Tue 12/86:25 am -
2 stops25h 07m
Deal found 11/7![American Airlines logo]()
$1,462
This Qantas Airways deal was found by Cheapflights users on 11/7. 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.
Thu 11/263:46 pm -
2 stops25h 39m
Tue 12/86:25 am -
2 stops25h 07m
Deal found 11/7![Multiple Airlines logo]()
$1,492
This United Airlines deal was found by Cheapflights users on 11/8. 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.
Fri 11/277:05 am -
2 stops33h 20m
Thu 12/178:40 am -
2 stops30h 30m
Deal found 11/8![United Airlines logo]()
$1,538
This oojo deal was found by Cheapflights users on 11/8. 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 11/193:59 pm -
2 stops26h 06m
Sun 12/66:00 am -
2 stops23h 31m
Deal found 11/8![Qantas Airways logo]()
$1,549
This Cathay Pacific deal was found by Cheapflights users on 11/7. 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.
Fri 11/276:00 am -
2 stops34h 00m
Tue 12/812:00 pm -
1 stop39h 15m
Deal found 11/7![Multiple Airlines logo]()
$1,556
This Mytrip deal was found by Cheapflights users on 11/8. 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.
Thu 11/1910:25 am -
2 stops50h 10m
Sun 12/66:50 pm -
3 stops43h 31m
Deal found 11/8![Multiple Airlines logo]()
$1,699
This Ovago deal was found by Cheapflights users on 11/8. 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 Ovago is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/199:39 pm -
2 stops42h 21m
Sun 12/612:00 pm -
1 stop39h 15m
Deal found 11/8![Cathay Pacific logo]()
$1,704
This Qatar Airways deal was found by Cheapflights users on 11/7. 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 12/53:50 pm -
2 stops34h 20m
Sat 12/1210:00 pm -
1 stop32h 10m
Deal found 11/7![Qatar Airways logo]()
$1,826
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 November 11, 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 November 11, 2026.
This Cathay Pacific deal was found by Cheapflights users on 11/7. 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.
Fri 11/276:00 am -
2 stops34h 00m
Tue 12/812:00 pm -
1 stop39h 15m
Deal found 11/7![Multiple Airlines logo]()
$1,556
This Qantas Airways deal was found by Cheapflights users on 11/6. 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.
Mon 2/84:49 pm -
2 stops30h 46m
Thu 2/111:20 pm -
2 stops42h 59m
Deal found 11/6![Qantas Airways logo]()
$1,778
This Qatar Airways deal was found by Cheapflights users on 11/10. 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.
Mon 2/83:50 pm -
1 stop30h 45m
Thu 2/1111:00 am -
2 stops43h 10m
Deal found 11/10![Qatar Airways logo]()
$1,991
This Cathay Pacific deal was found by Cheapflights users on 11/8. 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.
Fri 11/276:00 am -
3 stops42h 50m
Thu 12/176:00 am -
3 stops44h 47m
Deal found 11/8![Cathay Pacific logo]()
$2,348
This United Airlines deal was found by Cheapflights users on 11/6. 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 12/227:25 pm -
2 stops48h 00m
Tue 12/297:55 pm -
3 stops39h 07m
Deal found 11/6![United Airlines logo]()
$2,600
This Mytrip deal was found by Cheapflights users on 11/8. 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.
Thu 11/1910:25 am -
2 stops50h 10m
Sun 12/66:50 pm -
3 stops43h 31m
Deal found 11/8![Multiple Airlines logo]()
$1,699
This Expedia deal was found by Cheapflights users on 11/9. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/243:30 pm -
2 stops26h 35m
Thu 12/316:25 am -
2 stops30h 08m
Deal found 11/9![Multiple Airlines logo]()
$2,210
Last-minute flights from Seattle to AdelaideDiscover last-minute flight deals from Seattle to Adelaide. Data last updated November 11, 2026 and is based on user searches.
Discover last-minute flight deals from Seattle to Adelaide. Data last updated November 11, 2026 and is based on user searches.
This oojo deal was found by Cheapflights users on 11/8. 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 11/193:59 pm -
2 stops26h 06m
Sun 12/66:00 am -
2 stops23h 31m
Deal found 11/8![Qantas Airways logo]()
$1,549
This Mytrip deal was found by Cheapflights users on 11/8. 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.
Thu 11/1910:25 am -
2 stops50h 10m
Sun 12/66:50 pm -
3 stops43h 31m
Deal found 11/8![Multiple Airlines logo]()
$1,699
This Ovago deal was found by Cheapflights users on 11/8. 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 Ovago is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/199:39 pm -
2 stops42h 21m
Sun 12/612:00 pm -
1 stop39h 15m
Deal found 11/8![Cathay Pacific logo]()
$1,704
This Jetabroad deal was found by Cheapflights users on 11/7. 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 Jetabroad is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/263:46 pm -
2 stops25h 59m
Mon 12/71:15 pm -
2 stops23h 10m
Deal found 11/7![Multiple Airlines logo]()
$1,327
This Qantas Airways deal was found by Cheapflights users on 11/7. 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.
Thu 11/263:46 pm -
2 stops25h 39m
Tue 12/86:25 am -
2 stops25h 07m
Deal found 11/7![Multiple Airlines logo]()
$1,492
This American Airlines deal was found by Cheapflights users on 11/7. 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.
Fri 11/274:40 pm -
2 stops26h 20m
Tue 12/86:25 am -
2 stops25h 07m
Deal found 11/7![American Airlines logo]()
$1,462
This United Airlines deal was found by Cheapflights users on 11/8. 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.
Fri 11/277:05 am -
2 stops33h 20m
Thu 12/178:40 am -
2 stops30h 30m
Deal found 11/8![United Airlines logo]()
$1,538
This Cathay Pacific deal was found by Cheapflights users on 11/7. 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.
Fri 11/276:00 am -
2 stops34h 00m
Tue 12/812:00 pm -
1 stop39h 15m
Deal found 11/7![Multiple Airlines logo]()
$1,556
This Trip.com deal was found by Cheapflights users on 11/7. 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 12/51:36 pm -
2 stops28h 09m
Sat 12/121:15 pm -
2 stops23h 28m
Deal found 11/7![Multiple Airlines logo]()
$1,211
This Qatar Airways deal was found by Cheapflights users on 11/7. 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 12/53:50 pm -
2 stops34h 20m
Sat 12/1210:00 pm -
1 stop32h 10m
Deal found 11/7![Qatar Airways logo]()
$1,826
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 November 11, 2026.
Search for one-way flight options from Seattle to Adelaide. Find affordable one-way fares based on user searches. Data last updated November 11, 2026.
This Kiwi.com deal was found by Cheapflights users on 11/9. 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 5/810:15 am -
2 stops40h 55m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 11/9![Multiple Airlines logo]()
$614
This Expedia deal was found by Cheapflights users on 11/11. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 2/206:10 pm -
2 stops31h 30m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 11/11![Alaska Airlines logo]()
$627
This SmartFares deal was found by Cheapflights users on 11/9. 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 3/310:25 am -
1 stop29h 35m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 11/9![Cathay Pacific logo]()
$628
This Kiwi.com deal was found by Cheapflights users on 11/9. 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 3/38:40 am -
2 stops59h 25m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 11/9![Multiple Airlines logo]()
$656
This Kiwi.com deal was found by Cheapflights users on 11/9. 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 3/58:40 am -
3 stops42h 55m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 11/9![Multiple Airlines logo]()
$694
This Cathay Pacific deal was found by Cheapflights users on 11/9. 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.
Thu 3/46:10 pm -
2 stops45h 50m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 11/9![Multiple Airlines logo]()
$698
This Kiwi.com deal was found by Cheapflights users on 11/11. 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 2/204:29 pm -
3 stops50h 56m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 11/11![Multiple Airlines logo]()
$737
This Kiwi.com deal was found by Cheapflights users on 11/9. 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 3/58:40 am -
1 stop38h 10m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 11/9![Singapore Airlines logo]()
$1,038
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 November 11, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $1,211 (Trip.com) |
One-way from | $614 (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 November 11, 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
Sat 2/20
6:10 pm-8:10 pm
2 stops31h 30m
Adelaide
Wed 12/31
12:00 am-6:30 am
Nonstop0h 00m
$627
SeattleAdelaide
SEA Seattle/Tacoma Intl - ADL Adelaide
SEAADL
Seattle/Tacoma Intl
Thu 3/4
6:10 pm-10:30 am
2 stops45h 50m
Adelaide
Wed 12/31
12:00 am-6:30 am
Nonstop0h 00m
$698
SeattleAdelaide
SEA Seattle/Tacoma Intl - ADL Adelaide
SEAADL
Seattle/Tacoma Intl
Sat 2/20
4:29 pm-1:55 pm
3 stops50h 56m
Adelaide
Wed 12/31
12:00 am-6:30 am
Nonstop0h 00m
$737
SeattleAdelaide
SEA Seattle/Tacoma Intl - ADL Adelaide
SEAADL
Seattle/Tacoma Intl
Fri 3/5
8:40 am-5:20 pm
1 stop38h 10m
Adelaide
Wed 12/31
12:00 am-6:30 am
Nonstop0h 00m
$1,038
Quickest round-trip
SeattleAdelaide
SEA Seattle/Tacoma Intl - ADL Adelaide
SEAADL
Seattle/Tacoma Intl
Sat 5/8
10:15 am-7:25 am
1 stop28h 40m
Adelaide
Wed 12/31
12:00 am-6:30 am
Nonstop0h 00m
$1,040
SeattleAdelaide
SEA Seattle/Tacoma Intl - ADL Adelaide
SEAADL
Seattle/Tacoma Intl
Sat 2/20
3:50 pm-5:05 pm
1 stop30h 45m
Adelaide
Wed 12/31
12:00 am-6:30 am
Nonstop0h 00m
$1,071
SeattleAdelaide
SEA Seattle/Tacoma Intl - ADL Adelaide
SEAADL
Seattle/Tacoma Intl
Fri 11/27
6:00 am-10:30 am
2 stops34h 00m
Adelaide
Tue 12/8
12:00 pm-8:45 am
1 stop39h 15m
$1,556
SeattleAdelaide
SEA Seattle/Tacoma Intl - ADL Adelaide
SEAADL
Seattle/Tacoma Intl
Thu 11/19
10:25 am-7:05 am
2 stops50h 10m
Adelaide
Sun 12/6
6:50 pm-7:51 pm
3 stops43h 31m
$1,699
SeattleAdelaide
SEA Seattle/Tacoma Intl - ADL Adelaide
SEAADL
Seattle/Tacoma Intl
Wed 3/3
7:10 am-8:50 am
2 stops55h 10m
Adelaide
Wed 12/31
12:00 am-6:30 am
Nonstop0h 00m
$1,707
SeattleAdelaide
SEA Seattle/Tacoma Intl - ADL Adelaide
SEAADL
Seattle/Tacoma Intl
Mon 2/8
4:49 pm-6:05 pm
2 stops30h 46m
Adelaide
Thu 2/11
1:20 pm-1:49 pm
2 stops42h 59m
$1,778
Showing 1-10 of 15 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 November.
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy2 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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