$721+ 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 5/17. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — ADL
May 17 — May 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
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 April 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 April 17, 2026.
This oojo deal was found by Cheapflights users on 4/14. 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.
Fri 6/55:28 pm
SEA
- ADL
2 stops25h 57m
Qantas Airways
Tue 6/161:20 pm
ADL
- SEA
2 stops25h 08m
Qantas Airways
Deal found 4/14![Qantas Airways logo]()
$1,242
This Air Canada deal was found by Cheapflights users on 4/12. 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 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 4/12![Multiple Airlines logo]()
$1,258
This Air Canada deal was found by Cheapflights users on 4/13. 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.
Tue 10/207:20 pm
SEA
- ADL
2 stops29h 35m
Air Canada
Sat 11/286:10 am
ADL
- SEA
2 stops22h 11m
Air Canada
Deal found 4/13![Air Canada logo]()
$1,261
This Air Canada deal was found by Cheapflights users on 4/12. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 6/273:00 pm
SEA
- ADL
2 stops27h 40m
Multiple Airlines
Fri 7/107:35 pm
ADL
- SEA
2 stops31h 02m
Multiple Airlines
Deal found 4/12![Multiple Airlines logo]()
$1,265
This oojo deal was found by Cheapflights users on 4/14. 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.
Tue 5/125:06 pm
SEA
- ADL
2 stops23h 49m
Multiple Airlines
Tue 5/196:00 am
ADL
- SEA
2 stops23h 26m
Multiple Airlines
Deal found 4/14![Multiple Airlines logo]()
$1,266
This Qantas Airways deal was found by Cheapflights users on 4/16. 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 Qantas Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/15:00 pm
SEA
- ADL
2 stops23h 55m
Multiple Airlines
Mon 6/86:00 am
ADL
- SEA
2 stops23h 26m
Multiple Airlines
Deal found 4/16![Multiple Airlines logo]()
$1,275
This oojo deal was found by Cheapflights users on 4/16. 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 5/71:00 pm
SEA
- ADL
2 stops29h 35m
Multiple Airlines
Wed 5/201:15 pm
ADL
- SEA
2 stops25h 59m
Multiple Airlines
Deal found 4/16![Multiple Airlines logo]()
$1,280
This oojo deal was found by Cheapflights users on 4/15. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/307:16 pm
SEA
- ADL
2 stops45h 39m
Multiple Airlines
Tue 6/96:25 am
ADL
- SEA
2 stops31h 54m
Multiple Airlines
Deal found 4/15![Multiple Airlines logo]()
$1,295
This SmartFares deal was found by Cheapflights users on 4/13. 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 SmartFares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/288:50 pm
SEA
- ADL
2 stops33h 15m
Multiple Airlines
Thu 6/42:25 pm
ADL
- SEA
2 stops26h 04m
Multiple Airlines
Deal found 4/13![Multiple Airlines logo]()
$1,298
This SmartFares deal was found by Cheapflights users on 4/15. 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 SmartFares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/137:00 am
SEA
- ADL
2 stops30h 45m
Multiple Airlines
Tue 11/245:10 pm
ADL
- SEA
2 stops22h 45m
Multiple Airlines
Deal found 4/15![Multiple Airlines logo]()
$1,308
This Travelocity deal was found by Cheapflights users on 4/14. 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 Travelocity is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/45:06 pm
SEA
- ADL
2 stops23h 49m
Multiple Airlines
Wed 5/209:15 am
ADL
- SEA
2 stops28h 22m
Multiple Airlines
Deal found 4/14![Multiple Airlines logo]()
$1,316
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 April 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 April 17, 2026.
This Air Canada deal was found by Cheapflights users on 4/12. 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 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 4/12![Multiple Airlines logo]()
$1,258
This United Airlines deal was found by Cheapflights users on 4/15. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/1512:34 pm
SEA
- ADL
2 stops29h 01m
United Airlines
Wed 5/276:05 am
ADL
- SEA
3 stops31h 35m
United Airlines
Deal found 4/15![United Airlines logo]()
$1,449
This Air Canada deal was found by Cheapflights users on 4/12. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 6/273:00 pm
SEA
- ADL
2 stops27h 40m
Multiple Airlines
Fri 7/107:35 pm
ADL
- SEA
2 stops31h 02m
Multiple Airlines
Deal found 4/12![Multiple Airlines logo]()
$1,265
This Qantas Airways deal was found by Cheapflights users on 4/16. 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 Qantas Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/15:00 pm
SEA
- ADL
2 stops23h 55m
Multiple Airlines
Mon 6/86:00 am
ADL
- SEA
2 stops23h 26m
Multiple Airlines
Deal found 4/16![Multiple Airlines logo]()
$1,275
This United Airlines deal was found by Cheapflights users on 4/13. 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 5/2810:29 am
SEA
- ADL
2 stops32h 06m
United Airlines
Thu 6/48:00 pm
ADL
- SEA
3 stops41h 40m
United Airlines
Deal found 4/13![United Airlines logo]()
$1,506
This Qantas Airways deal was found by Cheapflights users on 4/14. 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 Qantas Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/17:04 pm
SEA
- ADL
2 stops23h 31m
Multiple Airlines
Mon 5/186:00 am
ADL
- SEA
2 stops23h 26m
Multiple Airlines
Deal found 4/14![Multiple Airlines logo]()
$1,336
This United Airlines deal was found by Cheapflights users on 4/15. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/156:58 pm
SEA
- ADL
2 stops22h 37m
United Airlines
Thu 5/288:00 pm
ADL
- SEA
3 stops41h 40m
United Airlines
Deal found 4/15![United Airlines logo]()
$1,506
This Qantas Airways deal was found by Cheapflights users on 4/13. 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 Qantas Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/95:06 pm
SEA
- ADL
2 stops23h 49m
Multiple Airlines
Sat 5/166:00 am
ADL
- SEA
2 stops24h 24m
Multiple Airlines
Deal found 4/13![Multiple Airlines logo]()
$1,373
This United Airlines deal was found by Cheapflights users on 4/17. 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.
Fri 5/156:58 pm
SEA
- ADL
2 stops22h 37m
United Airlines
Fri 5/226:05 am
ADL
- SEA
3 stops31h 35m
United Airlines
Deal found 4/17![United Airlines logo]()
$1,579
This United Airlines deal was found by Cheapflights users on 4/12. 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.
Sat 6/275:04 pm
SEA
- ADL
2 stops25h 21m
United Airlines
Fri 7/106:05 am
ADL
- SEA
3 stops31h 35m
United Airlines
Deal found 4/12![United Airlines logo]()
$1,644
Last-minute flights from Seattle to AdelaideDiscover last-minute flight deals from Seattle to Adelaide. Data last updated April 17, 2026 and is based on user searches.
Discover last-minute flight deals from Seattle to Adelaide. Data last updated April 17, 2026 and is based on user searches.
This Qantas Airways deal was found by Cheapflights users on 4/14. 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 Qantas Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/17:04 pm
SEA
- ADL
2 stops23h 31m
Multiple Airlines
Mon 5/186:00 am
ADL
- SEA
2 stops23h 26m
Multiple Airlines
Deal found 4/14![Multiple Airlines logo]()
$1,336
This Travelocity deal was found by Cheapflights users on 4/14. 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 Travelocity is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/45:06 pm
SEA
- ADL
2 stops23h 49m
Multiple Airlines
Wed 5/209:15 am
ADL
- SEA
2 stops28h 22m
Multiple Airlines
Deal found 4/14![Multiple Airlines logo]()
$1,316
This oojo deal was found by Cheapflights users on 4/16. 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 5/71:00 pm
SEA
- ADL
2 stops29h 35m
Multiple Airlines
Wed 5/201:15 pm
ADL
- SEA
2 stops25h 59m
Multiple Airlines
Deal found 4/16![Multiple Airlines logo]()
$1,280
This oojo deal was found by Cheapflights users on 4/14. 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.
Tue 5/125:06 pm
SEA
- ADL
2 stops23h 49m
Multiple Airlines
Tue 5/196:00 am
ADL
- SEA
2 stops23h 26m
Multiple Airlines
Deal found 4/14![Multiple Airlines logo]()
$1,266
This SmartFares deal was found by Cheapflights users on 4/15. 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 SmartFares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/155:55 pm
SEA
- ADL
2 stops36h 10m
Multiple Airlines
Wed 5/277:10 pm
ADL
- SEA
2 stops45h 19m
Multiple Airlines
Deal found 4/15![Multiple Airlines logo]()
$1,325
This Ovago deal was found by Cheapflights users on 4/17. 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 Ovago is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/154:15 pm
SEA
- ADL
2 stops37h 50m
Multiple Airlines
Fri 5/222:25 pm
ADL
- SEA
2 stops26h 04m
Multiple Airlines
Deal found 4/17![Multiple Airlines logo]()
$1,340
This Alaska Airlines deal was found by Cheapflights users on 4/15. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/277:35 am
SEA
- ADL
2 stops22h 30m
Multiple Airlines
Thu 6/112:25 pm
ADL
- SEA
2 stops26h 04m
Multiple Airlines
Deal found 4/15![Multiple Airlines logo]()
$1,322
This Qantas Airways deal was found by Cheapflights users on 4/15. 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 Qantas Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/274:28 pm
SEA
- ADL
2 stops30h 47m
Qantas Airways
Tue 6/91:20 pm
ADL
- SEA
2 stops25h 54m
Qantas Airways
Deal found 4/15![Qantas Airways logo]()
$1,358
This SmartFares deal was found by Cheapflights users on 4/13. 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 SmartFares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/288:50 pm
SEA
- ADL
2 stops33h 15m
Multiple Airlines
Thu 6/42:25 pm
ADL
- SEA
2 stops26h 04m
Multiple Airlines
Deal found 4/13![Multiple Airlines logo]()
$1,298
This oojo deal was found by Cheapflights users on 4/15. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/307:16 pm
SEA
- ADL
2 stops45h 39m
Multiple Airlines
Tue 6/96:25 am
ADL
- SEA
2 stops31h 54m
Multiple Airlines
Deal found 4/15![Multiple Airlines logo]()
$1,295
This Alaska Airlines deal was found by Cheapflights users on 4/15. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 5/318:50 pm
SEA
- ADL
2 stops33h 15m
Multiple Airlines
Sat 6/68:50 am
ADL
- SEA
2 stops48h 08m
Multiple Airlines
Deal found 4/15![Multiple Airlines logo]()
$1,339
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 April 17, 2026.
Search for one-way flight options from Seattle to Adelaide. Find affordable one-way fares based on user searches. Data last updated April 17, 2026.
This United Airlines deal was found by Cheapflights users on 4/16. 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.
Sun 5/175:25 pm
SEA
- ADL
2 stops25h 00m
United Airlines
Deal found 4/16![United Airlines logo]()
$721
This SmartFares deal was found by Cheapflights users on 4/13. 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 SmartFares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/18:00 am
SEA
- ADL
2 stops22h 05m
Multiple Airlines
Deal found 4/13![Multiple Airlines logo]()
$752
This Cathay Pacific deal was found by Cheapflights users on 4/12. 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 Cathay Pacific is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 5/178:43 am
SEA
- ADL
3 stops36h 22m
Multiple Airlines
Deal found 4/12![Multiple Airlines logo]()
$1,399
This Cathay Pacific deal was found by Cheapflights users on 4/16. 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 Cathay Pacific is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 5/177:16 pm
SEA
- ADL
3 stops45h 39m
Cathay Pacific
Deal found 4/16![Cathay Pacific logo]()
$1,401
This Emirates deal was found by Cheapflights users on 4/12. 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 Emirates is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 5/175:15 pm
SEA
- ADL
1 stop34h 20m
Emirates
Deal found 4/12![Emirates logo]()
$1,676
This Trip.com deal was found by Cheapflights users on 4/13. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/110:15 am
SEA
- ADL
1 stop28h 40m
Singapore Airlines
Deal found 4/13![Singapore Airlines logo]()
$2,732
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 April 17, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $1,242 (oojo) |
One-way from | $721 (United Airlines) |
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 April 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 - ADL
SEAADL
Seattle/Tacoma Intl
Mon 7/6
7:20 pm-1:30 pm
2 stops25h 40m
Adelaide
Fri 7/24
7:35 pm-10:07 am
2 stops31h 02m
$1,258
SeattleAdelaide
SEA - ADL
SEAADL
Seattle/Tacoma Intl
Sat 6/27
3:00 pm-11:10 am
2 stops27h 40m
Adelaide
Fri 7/10
7:35 pm-10:07 am
2 stops31h 02m
$1,265
SeattleAdelaide
SEA - ADL
SEAADL
Seattle/Tacoma Intl
Mon 6/1
5:00 pm-9:25 am
2 stops23h 55m
Adelaide
Mon 6/8
6:00 am-12:56 pm
2 stops23h 26m
$1,275
Quickest round-trip
SeattleAdelaide
SEA - ADL
SEAADL
Seattle/Tacoma Intl
Fri 5/1
7:04 pm-11:05 am
2 stops23h 31m
Adelaide
Mon 5/18
6:00 am-12:56 pm
2 stops23h 26m
$1,336
SeattleAdelaide
SEA - ADL
SEAADL
Seattle/Tacoma Intl
Sat 5/9
5:06 pm-9:25 am
2 stops23h 49m
Adelaide
Sat 5/16
6:00 am-1:54 pm
2 stops24h 24m
$1,373
SeattleAdelaide
SEA - ADL
SEAADL
Seattle/Tacoma Intl
Fri 5/15
12:34 pm-10:05 am
2 stops29h 01m
Adelaide
Wed 5/27
6:05 am-9:10 pm
3 stops31h 35m
$1,449
SeattleAdelaide
SEA - ADL
SEAADL
Seattle/Tacoma Intl
Thu 5/28
10:29 am-11:05 am
2 stops32h 06m
Adelaide
Thu 6/4
8:00 pm-9:10 pm
3 stops41h 40m
$1,506
SeattleAdelaide
SEA - ADL
SEAADL
Seattle/Tacoma Intl
Fri 5/15
6:58 pm-10:05 am
2 stops22h 37m
Adelaide
Thu 5/28
8:00 pm-9:10 pm
3 stops41h 40m
$1,506
SeattleAdelaide
SEA - ADL
SEAADL
Seattle/Tacoma Intl
Fri 5/15
6:58 pm-10:05 am
2 stops22h 37m
Adelaide
Fri 5/22
6:05 am-9:10 pm
3 stops31h 35m
$1,579
SeattleAdelaide
SEA - ADL
SEAADL
Seattle/Tacoma Intl
Sat 6/27
5:04 pm-10:55 am
2 stops25h 21m
Adelaide
Fri 7/10
6:05 am-9:10 pm
3 stops31h 35m
$1,644
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 April.
| 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.
Reviews of airlines servicing Adelaide
Get insights into the airlines that provide service to Adelaide. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Adelaide. Reviews last updated April 17, 2026.
Read through reviews of airlines operating flights from Seattle to Adelaide, such as Qantas Airways. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Boarding
7.7
Food
7.0
Crew
8.1
Overall
7.5
Comfort
7.5
Entertainment
7.2
Reviews
1 / 20
2.0
MediocreMidhat,Feb 2026
WYA - ADL
Boarding
7.7
Food
7.0
Crew
8.1
Overall
7.5
Comfort
7.5
Entertainment
7.2
Reviews
1 / 20
2.0
MediocreMidhat,Feb 2026
WYA - ADL
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| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$1,088 | Average$1,211 | FlexibilityNo cancel fee | On-time74% |