Title: CA $798 Cheap Flights from Seattle (SEA) to Perth (PER) - Expedia.ca ![Elizabeth Quay which includes a sunset, a city and a bay or harbor](https://images.trvl-media.com/place/553248621593151427/ffa3044e-03de-4748-8599-8aef955dbd0f.jpg?impolicy=fcrop&w=1200&h=500&q=medium) ![](https://images.trvl-media.com/place/553248621593151427/ffa3044e-03de-4748-8599-8aef955dbd0f.jpg?impolicy=fcrop&w=1200&h=500&q=medium) # CA $798 Cheap Flights from Seattle (SEA) to Perth (PER) [View CA $798 flight on Sun, Nov 23, 2025](https://expedia.ca/Flights-Search?trip=oneway&leg1=from:SEA,to:PER,departure:23/11/2025TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:797.42&airProductToken=AQqZAQoyCMGGARIEODgwNxiSASC4jQEojPH9AjDP8f0COEdAAFgBagVCQVNJQ3IIR0xaUDAyQkEKMAjBhgESAjMzGLiNASCSHiiw9P0CMOv7_QI4R0ABWAFqBUJBU0lDcghHTFpQMDJCQQoxCNaCARIDNTY3GJIeII-JASjz__0CMKSC_gI4SUABWAFqBUJBU0lDcghHTFpQMDJCQRIKCAIQARgCKgJBQxgBIgQIARABKAIoAygEMAE) - [Roundtrip](?flightType=roundtrip) - [One-way](?flightType=oneway) - [Multi-city](?flightType=multicity) ### Travellers Adults ChildrenAges 2 to 17 InfantsYounger than 2 EconomyPremium economyBusiness classFirst class Leaving from Going to Departing Returning Add a place to stay Add a car Direct flights only ## Popular airlines from Seattle-Tacoma International Airport (SEA) to Perth Airport (PER) - ![Qatar Airways](https://forever.travel-assets.com/flex/flexmanager/images/2024/09/23/landing_airline_sq_logo_QR.svg) Qatar Airways [](https://www.expedia.ca/Flights-Search?leg1=from:sea,to:per,departure:16/10/2025TANYT&leg2=from:per,to:sea,departure:23/10/2025TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&filters=[{"preferredAirlineFilterValue":{"carrierCode":"QR"}}]) - ![Cathay Pacific](https://forever.travel-assets.com/flex/flexmanager/images/2024/09/23/landing_airline_sq_logo_CX.svg) Cathay Pacific [](https://www.expedia.ca/Flights-Search?leg1=from:sea,to:per,departure:16/10/2025TANYT&leg2=from:per,to:sea,departure:23/10/2025TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&filters=[{"preferredAirlineFilterValue":{"carrierCode":"CX"}}]) - ![Emirates](https://forever.travel-assets.com/flex/flexmanager/images/2024/09/23/landing_airline_sq_logo_EK.svg) Emirates [](https://www.expedia.ca/Flights-Search?leg1=from:sea,to:per,departure:16/10/2025TANYT&leg2=from:per,to:sea,departure:23/10/2025TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&filters=[{"preferredAirlineFilterValue":{"carrierCode":"EK"}}]) - ![Air New Zealand](https://forever.travel-assets.com/flex/flexmanager/images/2024/09/23/landing_airline_sq_logo_NZ.svg) Air New Zealand [](https://www.expedia.ca/Flights-Search?leg1=from:sea,to:per,departure:16/10/2025TANYT&leg2=from:per,to:sea,departure:23/10/2025TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&filters=[{"preferredAirlineFilterValue":{"carrierCode":"NZ"}}]) - ![Singapore Airlines](https://forever.travel-assets.com/flex/flexmanager/images/2024/09/23/landing_airline_sq_logo_SQ.svg) Singapore Airlines [](https://www.expedia.ca/Flights-Search?leg1=from:sea,to:per,departure:16/10/2025TANYT&leg2=from:per,to:sea,departure:23/10/2025TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&filters=[{"preferredAirlineFilterValue":{"carrierCode":"SQ"}}]) - ![Air Canada](https://forever.travel-assets.com/flex/flexmanager/images/2024/09/23/landing_airline_sq_logo_AC.svg) Air Canada [](https://www.expedia.ca/Flights-Search?leg1=from:sea,to:per,departure:16/10/2025TANYT&leg2=from:per,to:sea,departure:23/10/2025TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&filters=[{"preferredAirlineFilterValue":{"carrierCode":"AC"}}]) - ![Qantas Airways](https://forever.travel-assets.com/flex/flexmanager/images/2024/09/23/landing_airline_sq_logo_QF.svg) Qantas Airways [](https://www.expedia.ca/Flights-Search?leg1=from:sea,to:per,departure:16/10/2025TANYT&leg2=from:per,to:sea,departure:23/10/2025TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&filters=[{"preferredAirlineFilterValue":{"carrierCode":"QF"}}]) - ## Plan, book, fly with confidence - ### Be in the know Get alerts if flight prices drop or rise\* - ### Book smarter Save up to 30% on select hotels after you book a flight\* - ### Earn twice Earn your airline miles on top of our rewards [Sign in](https://www.expedia.ca/login) ## Cheap flights from Seattle (SEA) to Perth (PER) Prices were available within the past 7 days and start at CA $798 for one-way flights and CA $1,344 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply. All deals One way Roundtrip ![Philippine Airlines](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/PR.gif) Wed, Mar 4 - Thu, Mar 19 SEA Seattle PER Perth CA $1,344 Roundtrip found 4 days ago [](https://expedia.ca/Flights-Search?trip=roundtrip&leg1=from:SEA,to:PER,departure:04/03/2026TANYT&leg2=from:PER,to:SEA,departure:19/03/2026TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:1343.36&airProductToken=AQpTCicI0KQBEgMxMjUYkgEgrFsoiuSGAzD16oYDOE9AAFgBcgZPTFhCVVMKKAjQpAESAzIyMxisWyCPiQEoqvSGAzDY94YDOE9AAVgBcgZPTFhCVVMKUwooCNCkARIDMjI0GI-JASCsWyio_4cDMMeCiAM4T0AAWAFyBk9MWEJVUwonCNCkARIDMTI0GKxbIJIBKPCFiAMwwIuIAzhPQAFYAXIGT0xYQlVTEgoIARABGAEqAlBSGAEiBAgBEAEoAigDKAQwAQ) ![Alaska Airlines](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/AS.gif) Thu, Mar 5 - Mon, Mar 23 SEA Seattle PER Perth CA $1,723 Roundtrip found 4 days ago [](https://expedia.ca/Flights-Search?trip=roundtrip&leg1=from:SEA,to:PER,departure:05/03/2026TANYT&leg2=from:PER,to:SEA,departure:23/03/2026TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:1722.96&airProductToken=AQqjAQo0CMGmARIDNTg0GJIBILJxKMTohgMwx-mGAzhOQABYAWoJRUNPTkxJR0hUcghOSzIxVVNJUgo0CMOwARIDODc5GLJxIMcyKM3qhgMw9PGGAzhOQAFYAWoJRUNPTkxJR0hUcghOSzIxVVNJUgo1CMOwARIDMTQzGMcyII-JASju84YDML_3hgM4TkABWAFqCUVDT05MSUdIVHIITksyMVVTSVIKpQEKNQjDsAESAzE0MBiPiQEgxzIouaiIAzCFrIgDOE5AAFgBaglFQ09OTElHSFRyCE5LMjFVU0lSCjUIw7ABEgM4ODQYxzIgi7gBKJOuiAMwi7SIAzhOQAFYAWoJRUNPTkxJR0hUcghOSzIxVVNJUgo1CMGmARIDNTg1GIu4ASCSASjYtYgDMIi3iAM4TkABWAFqCUVDT05MSUdIVHIITksyMVVTSVISCggBEAEYASoCQ1gYASIECAEQASgCKAMoBDAB) ![Singapore Airlines](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/SQ.gif) Thu, Mar 5 - Mon, Mar 23 SEA Seattle PER Perth CA $1,731 Roundtrip found 4 days ago [](https://expedia.ca/Flights-Search?trip=roundtrip&leg1=from:SEA,to:PER,departure:05/03/2026TANYT&leg2=from:PER,to:SEA,departure:23/03/2026TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:1730.80&airProductToken=AQpyCjYI06IBEgIyNxiSASCSaiit6YYDMKnxhgM4S0AAWAFqDEVjb25vbXkgTGl0ZXIISzE2VVNSQ0EKOAjTogESAzIxNRiSaiCPiQEo7_GGAzCb9IYDOEtAAVgBagxFY29ub215IExpdGVyCEsxNlVTUkNBCnIKOAjTogESAzIxNBiPiQEgkmooobCIAzDSsogDOEtAAFgBagxFY29ub215IExpdGVyCEsxNlVTUkNBCjYI06IBEgIyOBiSaiCSASjct4gDMK6-iAM4S0ABWAFqDEVjb25vbXkgTGl0ZXIISzE2VVNSQ0ESCggCEAEYASoCU1EYASIECAEQASgCKAMoBDAP) ![Qantas Airways](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/QF.gif) Fri, Jan 23 - Wed, Feb 11 SEA Seattle PER Perth CA $1,740 Roundtrip found 5 days ago [](https://expedia.ca/Flights-Search?trip=roundtrip&leg1=from:SEA,to:PER,departure:23/01/2026TANYT&leg2=from:PER,to:SEA,departure:11/02/2026TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:1739.10&airProductToken=AQqNAQotCNGMARIEMzczMxiSASCycSi2n4MDMMCggwM4T0AAWAFqBEVDU0xyBU9KRTBTCi0I0YwBEgI3NBiycSCSHii_oYMDML6ogwM4T0AAWAFqBEVDU0xyB1FXQUxLVVMKLQjRjAESAzY0MxiSHiCPiQEou6mDAzDdq4MDOFFAAFgBagRFQ1NMcgVPSkUwUwqPAQotCNGMARIDNjQ0GI-JASCSHiiA6oQDMPrrhAM4UUAAWAFqBEVDU0xyBU9KRTBTCi4I0YwBEgIxMRiSHiCLuAEole2EAzDO84QDOE9AAFgBagRFQ1NMcgdRV0FMS1VTCi4I0YwBEgQzNzM5GIu4ASCSASib9YQDMMv2hAM4T0AAWAFqBEVDU0xyBU9KRTBTEgoIARABGAEqAlFGGAEiBAgBEAEoAigDKAQwCw) ![Cathay Pacific](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/CX.gif) Mon, Mar 9 - Sun, Mar 29 SEA Seattle PER Perth CA $1,741 Roundtrip found 3 days ago [](https://expedia.ca/Flights-Search?trip=roundtrip&leg1=from:SEA,to:PER,departure:09/03/2026TANYT&leg2=from:PER,to:SEA,departure:29/03/2026TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:1740.60&airProductToken=AQpnCiEIw7ABEgQ3OTAzGJIBILiNASjLm4cDMIechwM4TkAAWAEKIAjDsAESAzg2NRi4jQEgxzIogZ6HAzChpIcDOE5AAVgBCiAIw7ABEgMxNzEYxzIgj4kBKLiohwMw_6uHAzhOQAFYAQpDCiAIw7ABEgMxODQYj4kBIMcyKIvwiAMw3POIAzhOQABYAQofCMOwARIDODUyGMcyIJIBKKr9iAMwooOJAzhOQAFYARIKCAEQARgBKgJDWBgBIgQIARABKAQwAQ) ![Cathay Pacific](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/CX.gif) Thu, Mar 5 - Sun, Mar 29 SEA Seattle PER Perth CA $1,743 Roundtrip found 3 days ago [](https://expedia.ca/Flights-Search?trip=roundtrip&leg1=from:SEA,to:PER,departure:05/03/2026TANYT&leg2=from:PER,to:SEA,departure:29/03/2026TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:1742.30&airProductToken=AQplCiAIw7ABEgQ3ODY1GJIBILJxKMTohgMwx-mGAzhOQABYAQofCMOwARIDODc5GLJxIMcyKM3qhgMw9PGGAzhOQAFYAQogCMOwARIDMTQzGMcyII-JASju84YDML_3hgM4TkABWAEKQwogCMOwARIDMTg0GI-JASDHMiiL8IgDMNzziAM4TkAAWAEKHwjDsAESAzg1MhjHMiCSASiq_YgDMKKDiQM4TkABWAESCggBEAEYASoCQ1gYASIECAEQASgEMAE) ![Alaska Airlines](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/AS.gif) Thu, Mar 5 - Mon, Mar 23 SEA Seattle PER Perth CA $1,751 Roundtrip found 4 days ago [](https://expedia.ca/Flights-Search?trip=roundtrip&leg1=from:SEA,to:PER,departure:05/03/2026TANYT&leg2=from:PER,to:SEA,departure:23/03/2026TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:1750.06&airProductToken=AQqjAQo0CMGmARIDNTg0GJIBILJxKMTohgMwx-mGAzhOQABYAWoJRUNPTkxJR0hUcghOSzIxVVNJUgo0CMOwARIDODc5GLJxIMcyKM3qhgMw9PGGAzhOQAFYAWoJRUNPTkxJR0hUcghOSzIxVVNJUgo1CMOwARIDMTQzGMcyII-JASju84YDML_3hgM4TkABWAFqCUVDT05MSUdIVHIITksyMVVTSVIKpgEKNQjDsAESAzE0MBiPiQEgxzIouaiIAzCFrIgDOE5AAFgBaglFQ09OTElHSFRyCE5LMjFVU0lSCjUIw7ABEgM4ODQYxzIgi7gBKJOuiAMwi7SIAzhOQAFYAWoJRUNPTkxJR0hUcghOSzIxVVNJUgo2CMOwARIENzkyMBiLuAEgkgEo2LWIAzCIt4gDOE5AAVgBaglFQ09OTElHSFRyCE5LMjFVU0lSEgoIARABGAEqAkNYGAEiBAgBEAEoAigDKAQwAQ) ![Qantas Airways](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/QF.gif) Fri, Jan 23 - Wed, Feb 11 SEA Seattle PER Perth CA $1,766 Roundtrip found 5 days ago [](https://expedia.ca/Flights-Search?trip=roundtrip&leg1=from:SEA,to:PER,departure:23/01/2026TANYT&leg2=from:PER,to:SEA,departure:11/02/2026TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:1765.20&airProductToken=AQqNAQotCNGMARIEMzczMxiSASCycSi2n4MDMMCggwM4T0AAWAFqBEVDU0xyBU9KRTBVCisI0YwBEgI3NBiycSCSHii_oYMDML6ogwM4T0AAWAFqBEVDU0xyBU9KRTBVCi8I0YwBEgM2NDUYkh4gj4kBKMeqgwMw6ayDAzhRQABYAWoERUNTTHIHUVdBTEtVUxIKCAEQARgBKgJRRhgBIgQIARABKAIoAygEMAs) ![Cathay Pacific](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/CX.gif) Wed, Mar 4 - Thu, Mar 19 SEA Seattle PER Perth CA $1,768 Roundtrip found 4 days ago [](https://expedia.ca/Flights-Search?trip=roundtrip&leg1=from:SEA,to:PER,departure:04/03/2026TANYT&leg2=from:PER,to:SEA,departure:19/03/2026TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:1767.66&airProductToken=AQqkAQo1CMOwARIENzg2NRiSASCycSik3YYDMKfehgM4TkAAWAFqCUVDT05MSUdIVHIITksyMVVTSVIKNAjDsAESAzg3ORiycSDHMiit34YDMNTmhgM4TkABWAFqCUVDT05MSUdIVHIITksyMVVTSVIKNQjDsAESAzE0MxjHMiCPiQEozuiGAzCf7IYDOE5AAVgBaglFQ09OTElHSFRyCE5LMjFVU0lSCqYBCjUIw7ABEgMxNDAYj4kBIMcyKLn7hwMwhf-HAzhOQABYAWoJRUNPTkxJR0hUcghOSzIxVVNJUgo1CMOwARIDODM4GMcyILiNASjCgogDMPSHiAM4TkABWAFqCUVDT05MSUdIVHIITksyMVVTSVIKNgjDsAESBDc5MDAYuI0BIJIBKMOKiAMwhIuIAzhOQAFYAWoJRUNPTkxJR0hUcghOSzIxVVNJUhIKCAEQARgBKgJDWBgBIgQIARABKAIoAygEMAE) ![Air Canada](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/AC.gif) Tue, Mar 17 - Mon, Apr 6 SEA Seattle PER Perth CA $1,774 Roundtrip found 5 days ago [](https://expedia.ca/Flights-Search?trip=roundtrip&leg1=from:SEA,to:PER,departure:17/03/2026TANYT&leg2=from:PER,to:SEA,departure:06/04/2026TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:1773.50&airProductToken=AQpnCiEIwYYBEgQ4ODExGJIBILiNASjQ9YcDMJP2hwM4R0AAWAEKHwjBhgESAjMzGLiNASCSHijw9ocDMO_9hwM4R0ABWAEKIQjBhgESBDI3MzcYkh4gj4kBKLOCiAMw5ISIAzhHQAFYAQpnCiEIwYYBEgQyNzM2GI-JASCSHiiCzYkDMIbPiQM4R0AAWAEKHwjBhgESAjM0GJIeILiNASi41IkDMNXbiQM4R0ABWAEKIQjBhgESBDg3OTgYuI0BIJIBKL7ciQMw_dyJAzhHQAFYARIKCAEQARgBKgJBQxgBIgQIARABKAgoBDAB) ## Alternative airports near Perth Prices were available within the past 7 days. Prices and availability are subject to change. [](https://www.expedia.ca/Flights-Search?leg1=from:SEA,to:PER,departure:16/10/2025TANYT&leg2=from:PER,to:SEA,departure:22/10/2025TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&sortOrder=INCREASING&sortType=PRICE) PER Perth Airport CheapestClosest 14 min [Flights from CA $2,564](https://www.expedia.ca/Flights-Search?leg1=from:SEA,to:PER,departure:16/10/2025TANYT&leg2=from:PER,to:SEA,departure:22/10/2025TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&sortOrder=INCREASING&sortType=PRICE) ## Frequently asked questions ### How much is a flight from SEA to PER? > Round-trip journeys from Sea-Tac Airport to PER start from CA $1,344. This price is based on fares available within the last 7 days on Expedia for flights departing within the next year — make your booking ASAP so you don't miss out. Prices and availability are subject to change. Additional terms apply. ### Do I need to pay a cancellation fee if I cancel my flight from Seattle - Tacoma Intl. Airport (SEA) to Perth Airport (PER)? > The majority of flights can be cancelled online, but each air carrier has its own set of terms and conditions. If you do decide to cancel your flight, go to our [Customer Service Portal](https://www.expedia.ca/helpcenter) and follow the instructions. ### How do I find cheap flights from Seattle - Tacoma Intl. Airport (SEA) to PER that have flexible change policies? > Flights from SEA to Perth Airport (PER) offering flexible change policies are available from several carriers. Simply use our "No change fees" filter during your search. You'll only need to pay the difference in ticket price, without any additional fees to worry about. ### How many hours is the flight from Sea-Tac Airport to Perth Airport? > Make the 23 hours and 34 minutes between Sea-Tac Airport and Perth Airport as comfortable as you can. Bring the essentials, like warm clothes, a water bottle and earplugs, and simply enjoy the flight! ### How far is the flight from Seattle - Tacoma Intl. Airport (SEA) to Perth Airport? > The distance is around 14,900 kilometres, so fill your carry-on luggage with whatever you need to make the long journey comfortable. Not sure what to take on board your SeaTac to Perth flight? A travel pillow, earplugs and a sleep mask are among the essentials. ### Which airlines fly direct from SEA to Perth Airport (PER)? > If you want to fly straight from Sea-Tac Airport to Perth Airport (PER), you'll need to book a flight with at least one stop. Unfortunately, there are no airlines that fly directly on this route. ### Are SEA to Perth Airport (PER) flight tickets cheaper when they're purchased at the last minute? > Flight prices change all the time, so there are no guarantees. While last-minute flight deals between Sea-Tac Airport and Perth Airport are of course possible, it's also a good idea to monitor prices well before you fly. In fact, some carriers publish their prices up to 12 months prior to the departure date. Expedia is continuously updating the best bargains around, so keep checking and be ready to pounce when the price dips. ## Travel information | Origin airport | Seattle - Tacoma Intl. | | --- | --- | | Destination airport | Perth | | Airlines serving | Air Canada, Air New Zealand, American Airlines, Cathay Pacific, Emirates, Hawaiian Airlines, Philippine Airlines, Qantas Airways, Qatar Airways, Singapore Airlines, United | | Roundtrip price | CA $1,343 | | Distance | 14785 km | ## Book with confidence ### Seattle to Perth Flights **The easy way to book your flights from Seattle to Perth**  With Expedia, it’s simple to find and book flights to Perth from Seattle whether you’re traveling for business or pleasure. Enter your travel dates, hit search, and choose your flight from 20 airlines that cover this route. There are nonstop flights to Perth, too.   Choose your preferred carrier and cabin class with the advanced search tool and select your ideal departure time. Then, if you want, you can see just nonstop or refundable flights. And if you’re traveling last minute, just enter the date to check out flights from Seattle to Perth today, tomorrow, or this week.   **Save dollars with cheap flights from Seattle - Tacoma Intl., SEA to Perth, PER**  Sort your search results by price to find great deals on your flight from Seattle to Perth—you get all your cheapest options first. Grab yourself a bargain now—the lowest price on flights to Perth from Seattle currently is just CA $1,344 rising to CA $1,774.   Here are more money-saving tips:  - Fly in March when flight prices are normally at their lowest  - Book about a month to 6 weeks before you travel for the best prices to Perth   - Avoid peak season and weekends when flights can cost more - Early morning and late-night flights are sometimes cheaper, so try varying your travel times  - One surefire way to save money on your flight is to book your flight and hotel together with Expedia. Sometimes, the savings are so large that the flight is basically free!  **Reasons to choose Expedia for your flight to Perth from Seattle**  Whatever your destination, budget, or reason to travel, in just one quick search, you can choose from loads of flights, airlines, and cabin classes. The filters make it quick and easy to find your ideal flights, and if you choose one of the flexible options, you won’t be charged to change your flight. So book your flight to Perth with Expedia today. ## Explore a world of travel with Expedia - Lodging - Flights - Packages - Cars - [Ascot Hotels](https://www.expedia.ca/Ascot-Perth-Hotels.0-n181714-0.Travel-Guide-Filter-Hotels) - [Hotels near Ascot Racecourse](https://www.expedia.ca/Ascot-Racecourse-Hotels.0-l553248621562854405-0.Travel-Guide-Filter-Hotels) - [Ashfield Hotels](https://www.expedia.ca/Ashfield-Perth-Hotels.0-n553248634374152202-0.Travel-Guide-Filter-Hotels) - [Bassendean Hotels](https://www.expedia.ca/Bassendean-Perth-Hotels.0-n180213-0.Travel-Guide-Filter-Hotels) - [Bayswater Hotels](https://www.expedia.ca/Bayswater-Perth-Hotels.0-n180216-0.Travel-Guide-Filter-Hotels) - [Bedford Hotels](https://www.expedia.ca/Bedford-Perth-Hotels.0-n3000444157-0.Travel-Guide-Filter-Hotels) - [Beechboro Hotels](https://www.expedia.ca/Beechboro-Perth-Hotels.0-n3000444289-0.Travel-Guide-Filter-Hotels) - [Bellevue Hotels](https://www.expedia.ca/Bellevue-Perth-Hotels.0-n3000002306-0.Travel-Guide-Filter-Hotels) - 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