$724+ Cheap flights from Seattle (SEA) to Perth (PER)
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 12/1. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — PER
Aug 27 — Sep 31
Round-trip
1 adult, Economy
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Find cheap flights from Seattle to Perth 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 Perth
Cheapest
Best
Last-minute
One-way
Cheapest flights from Seattle to PerthExplore the most affordable flight options available from Seattle to Perth. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 28, 2026.
Explore the most affordable flight options available from Seattle to Perth. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 28, 2026.
This Trip.com deal was found by Cheapflights users on 7/23. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/61:55 am
SEA
- PER
2 stops48h 15m
Multiple Airlines
Mon 9/146:25 pm
PER
- SEA
2 stops40h 20m
Multiple Airlines
Deal found 7/23![Multiple Airlines logo]()
$1,174
This oojo deal was found by Cheapflights users on 7/24. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/115:10 pm
SEA
- PER
2 stops28h 15m
Qantas Airways
Tue 8/1810:30 am
PER
- SEA
2 stops25h 26m
Qantas Airways
Deal found 7/24![Qantas Airways logo]()
$1,228
This oojo deal was found by Cheapflights users on 7/24. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/65:10 pm
SEA
- PER
2 stops27h 55m
Qantas Airways
Tue 9/2910:30 am
PER
- SEA
2 stops24h 09m
Qantas Airways
Deal found 7/24![Qantas Airways logo]()
$1,234
This oojo deal was found by Cheapflights users on 7/23. 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.
Tue 10/2010:15 am
SEA
- PER
1 stop22h 40m
Singapore Airlines
Tue 11/101:15 am
PER
- SEA
1 stop21h 55m
Singapore Airlines
Deal found 7/23![Singapore Airlines logo]()
$1,251
This oojo deal was found by Cheapflights users on 7/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/174:25 pm
SEA
- PER
1 stop35h 10m
Qatar Airways
Mon 9/1410:45 pm
PER
- SEA
1 stop29h 00m
Qatar Airways
Deal found 7/27![Qatar Airways logo]()
$1,270
This oojo deal was found by Cheapflights users on 7/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/84:59 pm
SEA
- PER
2 stops28h 06m
Qantas Airways
Tue 9/2910:35 am
PER
- SEA
2 stops27h 24m
Qantas Airways
Deal found 7/25![Qantas Airways logo]()
$1,271
This oojo deal was found by Cheapflights users on 7/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/46:19 pm
SEA
- PER
2 stops30h 06m
Qantas Airways
Wed 8/1210:35 am
PER
- SEA
2 stops26h 23m
Qantas Airways
Deal found 7/26![Qantas Airways logo]()
$1,277
This oojo deal was found by Cheapflights users on 7/24. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/37:10 pm
SEA
- PER
2 stops30h 50m
Qantas Airways
Sat 10/310:30 am
PER
- SEA
2 stops27h 34m
Qantas Airways
Deal found 7/24![Qantas Airways logo]()
$1,279
This lastminute.com deal was found by Cheapflights users on 7/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure lastminute.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/2412:25 pm
SEA
- PER
1 stop27h 25m
Cathay Pacific
Tue 9/88:20 am
PER
- SEA
1 stop41h 00m
Cathay Pacific
Deal found 7/26![Cathay Pacific logo]()
$1,285
This Mytrip deal was found by Cheapflights users on 7/24. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/1310:15 am
SEA
- PER
1 stop27h 05m
Multiple Airlines
Thu 9/176:25 pm
PER
- SEA
3 stops35h 50m
Multiple Airlines
Deal found 7/24![Multiple Airlines logo]()
$1,305
Best flights from Seattle to PerthDiscover carefully curated flight deals from Seattle to Perth that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated July 28, 2026.
Discover carefully curated flight deals from Seattle to Perth that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated July 28, 2026.
This Qantas Airways deal was found by Cheapflights users on 7/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Qantas Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/75:10 pm
SEA
- PER
2 stops32h 50m
Qantas Airways
Wed 8/1210:35 am
PER
- SEA
2 stops26h 23m
Qantas Airways
Deal found 7/26![Qantas Airways logo]()
$1,470
This United Airlines deal was found by Cheapflights users on 7/24. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/74:58 pm
SEA
- PER
2 stops28h 32m
United Airlines
Mon 9/1411:55 pm
PER
- SEA
3 stops36h 36m
United Airlines
Deal found 7/24![United Airlines logo]()
$1,491
This Qatar Airways deal was found by Cheapflights users on 7/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Qatar Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/277:18 am
SEA
- PER
2 stops44h 17m
Qatar Airways
Fri 9/1110:45 pm
PER
- SEA
2 stops35h 22m
Qatar Airways
Deal found 7/27![Qatar Airways logo]()
$1,509
This Singapore Airlines deal was found by Cheapflights users on 7/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Singapore Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/2810:15 am
SEA
- PER
1 stop35h 15m
Singapore Airlines
Thu 9/101:10 am
PER
- SEA
1 stop22h 35m
Singapore Airlines
Deal found 7/27![Singapore Airlines logo]()
$1,916
This United Airlines deal was found by Cheapflights users on 7/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/173:30 pm
SEA
- PER
2 stops30h 25m
United Airlines
Mon 9/1411:55 pm
PER
- SEA
3 stops36h 36m
United Airlines
Deal found 7/26![United Airlines logo]()
$1,493
This Qatar Airways deal was found by Cheapflights users on 7/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Qatar Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/244:25 pm
SEA
- PER
1 stop35h 10m
Qatar Airways
Thu 9/1010:45 pm
PER
- SEA
1 stop29h 00m
Qatar Airways
Deal found 7/27![Qatar Airways logo]()
$1,652
This United Airlines deal was found by Cheapflights users on 7/23. 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 10/207:25 pm
SEA
- PER
2 stops28h 20m
United Airlines
Wed 11/1110:55 pm
PER
- SEA
3 stops33h 32m
United Airlines
Deal found 7/23![United Airlines logo]()
$1,723
This United Airlines deal was found by Cheapflights users on 7/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/146:51 pm
SEA
- PER
2 stops27h 54m
United Airlines
Wed 1/610:55 pm
PER
- SEA
2 stops27h 26m
United Airlines
Deal found 7/26![United Airlines logo]()
$1,868
This United Airlines deal was found by Cheapflights users on 7/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/103:35 pm
SEA
- PER
2 stops29h 55m
United Airlines
Fri 8/1411:55 pm
PER
- SEA
3 stops36h 36m
United Airlines
Deal found 7/27![United Airlines logo]()
$1,877
Last-minute flights from Seattle to PerthDiscover last-minute flight deals from Seattle to Perth. Data last updated July 28, 2026 and is based on user searches.
Discover last-minute flight deals from Seattle to Perth. Data last updated July 28, 2026 and is based on user searches.
This oojo deal was found by Cheapflights users on 7/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/46:19 pm
SEA
- PER
2 stops30h 06m
Qantas Airways
Wed 8/1210:35 am
PER
- SEA
2 stops26h 23m
Qantas Airways
Deal found 7/26![Qantas Airways logo]()
$1,277
This Qantas Airways deal was found by Cheapflights users on 7/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Qantas Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/46:19 pm
SEA
- PER
2 stops31h 41m
Qantas Airways
Tue 8/1110:30 am
PER
- SEA
2 stops25h 26m
Qantas Airways
Deal found 7/26![Qantas Airways logo]()
$1,309
This Qantas Airways deal was found by Cheapflights users on 7/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Qantas Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/55:10 pm
SEA
- PER
2 stops32h 50m
Qantas Airways
Wed 8/127:45 am
PER
- SEA
2 stops29h 13m
Qantas Airways
Deal found 7/26![Qantas Airways logo]()
$1,345
This oojo deal was found by Cheapflights users on 7/24. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/115:10 pm
SEA
- PER
2 stops28h 15m
Qantas Airways
Tue 8/1810:30 am
PER
- SEA
2 stops25h 26m
Qantas Airways
Deal found 7/24![Qantas Airways logo]()
$1,228
This oojo deal was found by Cheapflights users on 7/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/174:25 pm
SEA
- PER
1 stop35h 10m
Qatar Airways
Mon 9/1410:45 pm
PER
- SEA
1 stop29h 00m
Qatar Airways
Deal found 7/27![Qatar Airways logo]()
$1,270
This FlightHub deal was found by Cheapflights users on 7/23. 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.
Mon 8/1712:25 pm
SEA
- PER
1 stop43h 15m
Cathay Pacific
Mon 9/148:20 am
PER
- SEA
1 stop41h 00m
Cathay Pacific
Deal found 7/23![Cathay Pacific logo]()
$1,315
This lastminute.com deal was found by Cheapflights users on 7/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure lastminute.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/2412:25 pm
SEA
- PER
1 stop27h 25m
Cathay Pacific
Tue 9/88:20 am
PER
- SEA
1 stop41h 00m
Cathay Pacific
Deal found 7/26![Cathay Pacific logo]()
$1,285
This Sembo deal was found by Cheapflights users on 7/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Sembo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/245:10 pm
SEA
- PER
2 stops27h 55m
Qantas Airways
Tue 9/810:30 am
PER
- SEA
2 stops27h 29m
Qantas Airways
Deal found 7/26![Qantas Airways logo]()
$1,326
This Kiwi.com deal was found by Cheapflights users on 7/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/2811:10 pm
SEA
- PER
1 stop41h 05m
Multiple Airlines
Sat 9/510:35 am
PER
- SEA
2 stops43h 40m
Multiple Airlines
Deal found 7/27![Multiple Airlines logo]()
$1,343
One-way flights from Seattle to PerthSearch for one-way flight options from Seattle to Perth. Find affordable one-way fares based on user searches. Data last updated July 28, 2026.
Search for one-way flight options from Seattle to Perth. Find affordable one-way fares based on user searches. Data last updated July 28, 2026.
This American Airlines deal was found by Cheapflights users on 7/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/14:30 pm
SEA
- PER
2 stops26h 45m
American Airlines
Deal found 7/23![American Airlines logo]()
$724
This oojo deal was found by Cheapflights users on 7/23. 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.
Tue 12/18:45 am
SEA
- PER
1 stop28h 40m
Singapore Airlines
Deal found 7/23![Singapore Airlines logo]()
$765
This Jetabroad deal was found by Cheapflights users on 7/23. 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 Jetabroad is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/111:06 am
SEA
- PER
3 stops38h 14m
Multiple Airlines
Deal found 7/23![Multiple Airlines logo]()
$1,897
This Kiwi.com deal was found by Cheapflights users on 7/23. 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.
Sun 11/295:45 pm
SEA
- PER
3 stops42h 45m
Multiple Airlines
Deal found 7/23![Multiple Airlines logo]()
$2,400
This Kiwi.com deal was found by Cheapflights users on 7/23. 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.
Mon 11/303:50 pm
SEA
- PER
3 stops59h 50m
Multiple Airlines
Deal found 7/23![Multiple Airlines logo]()
$2,467
This Kiwi.com deal was found by Cheapflights users on 7/23. 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.
Sat 11/2810:20 am
SEA
- PER
2 stops51h 15m
Multiple Airlines
Deal found 7/23![Multiple Airlines logo]()
$2,695
This Kiwi.com deal was found by Cheapflights users on 7/23. 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 12/33:40 pm
SEA
- PER
3 stops56h 45m
Multiple Airlines
Deal found 7/23![Multiple Airlines logo]()
$2,724
This Kiwi.com deal was found by Cheapflights users on 7/23. 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 12/45:45 pm
SEA
- PER
3 stops38h 00m
Multiple Airlines
Deal found 7/23![Multiple Airlines logo]()
$2,740
This Kiwi.com deal was found by Cheapflights users on 7/23. 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.
Wed 12/28:41 am
SEA
- PER
3 stops48h 39m
Multiple Airlines
Deal found 7/23![Multiple Airlines logo]()
$2,747
Find flight deals from Seattle to Perth
Discover tips and strategies to find the most affordable flight options for your journey from Seattle (SEA) to Perth (PER). 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 July 28, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $1,174 (Trip.com) |
One-way from | $724 (American Airlines) |
Popular in | November |
Cheapest in | June |
Cheapflights Fare Finder
Customize your flight search to find flights from Seattle to Perth 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 July 28, 2026.
Use the filters below to find and compare flights from Seattle to Perth that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
SeattlePerth
SEA - PER
SEAPER
Seattle/Tacoma Intl
Fri 8/7
5:10 pm-5:00 pm
2 stops32h 50m
Perth
Wed 8/12
10:35 am-9:58 pm
2 stops26h 23m
$1,470
SeattlePerth
SEA - PER
SEAPER
Seattle/Tacoma Intl
Mon 9/7
4:58 pm-12:30 pm
2 stops28h 32m
Perth
Mon 9/14
11:55 pm-9:31 pm
3 stops36h 36m
$1,491
SeattlePerth
SEA - PER
SEAPER
Seattle/Tacoma Intl
Mon 8/17
3:30 pm-12:55 pm
2 stops30h 25m
Perth
Mon 9/14
11:55 pm-9:31 pm
3 stops36h 36m
$1,493
SeattlePerth
SEA - PER
SEAPER
Seattle/Tacoma Intl
Thu 8/27
7:18 am-6:35 pm
2 stops44h 17m
Perth
Fri 9/11
10:45 pm-7:07 pm
2 stops35h 22m
$1,509
SeattlePerth
SEA - PER
SEAPER
Seattle/Tacoma Intl
Mon 8/24
4:25 pm-6:35 pm
1 stop35h 10m
Perth
Thu 9/10
10:45 pm-12:45 pm
1 stop29h 00m
$1,652
SeattlePerth
SEA - PER
SEAPER
Seattle/Tacoma Intl
Tue 10/20
7:25 pm-2:45 pm
2 stops28h 20m
Perth
Wed 11/11
10:55 pm-4:27 pm
3 stops33h 32m
$1,723
Quickest round-trip
SeattlePerth
SEA - PER
SEAPER
Seattle/Tacoma Intl
Mon 12/14
6:51 pm-2:45 pm
2 stops27h 54m
Perth
Wed 1/6
10:55 pm-10:21 am
2 stops27h 26m
$1,868
SeattlePerth
SEA - PER
SEAPER
Seattle/Tacoma Intl
Mon 8/10
3:35 pm-12:30 pm
2 stops29h 55m
Perth
Fri 8/14
11:55 pm-9:31 pm
3 stops36h 36m
$1,877
SeattlePerth
SEA - PER
SEAPER
Seattle/Tacoma Intl
Fri 8/28
10:15 am-12:30 pm
1 stop35h 15m
Perth
Thu 9/10
1:10 am-8:45 am
1 stop22h 35m
$1,916
Cheapest one-way
Quickest one-way
SeattlePerth
SEA - PER
SEAPER
Seattle/Tacoma Intl
Tue 12/1
4:30 pm-11:15 am
2 stops26h 45m
$724
Showing 1-10 of 17 resultsSorted by cheapest first
Compare providers for flights from Seattle to Perth
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 Perth in July.
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy1 star | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars |
- Most accurate provider: When it comes to deals on Seattle-Perth flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Seattle-Perth flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Seattle-Perth flight searches over the past month and is updated monthly.
- Most trusted provider: When it comes to deals on Seattle-Perth 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-Perth 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 Perth
Have a flexible travel schedule? Discover the best time to fly to Perth from Seattle with our price prediction graph.
SEA-PER
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 Perth
Get insights into the airlines that provide service to Perth. 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 Perth. Reviews last updated July 28, 2026.
See what other customers who have flown with Singapore Airlines from Seattle to Perth have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Comfort
8.0
Entertainment
8.1
Boarding
8.3
Food
7.8
Crew
8.6
Overall
8.2
Reviews
1 / 20
2.0
MediocreKetan,Nov 2024
SEA - SIN
Comfort
8.0
Entertainment
8.1
Boarding
8.3
Food
7.8
Crew
8.6
Overall
8.2
Reviews
1 / 20
2.0
MediocreKetan,Nov 2024
SEA - SIN
Related info for your journey
Find useful and relevant information for your journey from Seattle to Perth. 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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Alternative routes for Seattle to Perth
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Complete your trip
Complete your trip to Perth by adding a car rental and/or hotel reservation to your travel itinerary.
Search flights from Seattle to Perth by cabin class
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Seattle and Perth flights
Browse other Seattle and Perth flight options. Last updated on July 28, 2026.
Other flights from Seattle
Browse through other flights departing from Seattle. Flights are based on user searches made on Cheapflights and were last updated on July 28, 2026.
Other flights to Perth
Explore flights to Perth departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on July 28, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
Top airline flying from Seattle to Perth
Discover the top airline that operate flights from Seattle to Perth. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated July 28, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$1,172 | Average$1,401 | FlexibilityNo cancel fee | On-time81% |