Seattle to Perth flights (SEA → PER)
Looking for Seattle to Perth flights? Cheapest round-trip I’ve found: US$1,303 on Alaska, 2 stop(s), departing 2027-02-28. That’s US$333 below the typical price for this route. Cheap flights from Seattle to Perth change daily — I re-check this route three times a day.
Deal score: Good price — cheaper than 60% of prices I’ve seen on this route.
2stops
39h 5mflight time
Feb 2027cheapest departure window
US$1,636typical price
Best months to fly Seattle to Perth
| Month | Cheapest seen |
|---|---|
| February | US$1,211 |
| October | US$1,340 |
How to book this fare
I don’t sell tickets — I track prices and point you to where to look. To book Seattle to Perth flights:
- Search Seattle to Perth on Google Flights for the dates shown above (Feb 2027) — the fare I found is usually still available there.
- Compare the same dates on metasearch sites like Skyscanner or KAYAK to confirm you’re seeing the lowest price.
- Book directly with the airline when you can — it’s often the same price and makes changes or cancellations much easier.
Fares change constantly. If the price has moved, check back — I re-check this route daily.
Other Seattle to … flights
- Seattle to Cusco flights — US$1,058
- Seattle to Queenstown flights — US$1,261
- Seattle to Christchurch flights — US$1,107
- Seattle to Brisbane flights — US$1,031
- Seattle to Madrid flights — US$680
- Seattle to Rio de Janeiro flights — US$1,047
- Seattle to Asuncion flights — US$1,429
- Seattle to Belo Horizonte flights — US$1,322
All flights to Perth · All flights from Seattle
Prices last checked: 2026-09-24, 10:14:17 p.m.. Prices are indicative and change quickly — confirm on the airline site before booking. See how I find these deals.