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How to get the cheapest flight ticket from Seattle to Perth
Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip
What is the cheapest month to fly to Perth?
The month of February is, on average, the cheapest month to fly to Perth from Seattle, with most prices found around $2,085. If you’re not able to fly to Perth in February, then October is your next best option. Flight prices from Seattle to Perth during October average around $2,268.
What is the cheapest time of day to depart on your flight to Perth?
At midday is the cheapest time of day to fly from Seattle to Perth when you can find flight prices for as low as $0. Flying to Perth at midday is an ideal time because this is during off-peak travel hours. Flights in the morning are often more expensive, with an average ticket price of $3,124.
How far in advance should I book a flight to Perth?
You are more likely to see cheaper flights to Perth from Seattle when booking 25 weeks ahead of your departure date. In general, you can expect to find flights to Perth for around $2,507 when searching 25 weeks out.However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Perth from Seattle for as low as $1,907 on momondo.
How have Seattle to Perth flight prices changed over time?
As of March 2025, prices for Seattle to Perth flights are approximately 16% cheaper when compared to flights at the same time last year.
When to book flights from Seattle to Perth
Cheap Seattle to Perth (SEA to PER) flight deals and tips
Find info about flight duration, direct flights, and airports for your flight from Seattle to Perth
How far is Seattle/Tacoma Intl to Perth by plane?
A flight from Seattle/Tacoma Intl to Perth will travel around 14868.9 km. Flights usually cover this in 22h 40m, depending on flying conditions and air traffic around both airports.
When did momondo last update prices for flights from Seattle/Tacoma Intl Airport to Perth Airport?
Prices for flights from Seattle/Tacoma Intl Airport to Perth Airport refresh daily.
How old do you have to be to fly from Seattle/Tacoma Intl Airport to Perth Airport?
Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and stopovers. It is recommended that you verify with the airline you are booking with for travel from Seattle/Tacoma Intl Airport to Perth Airport.
What documentation or ID do you need to fly to Perth Airport?
The necessary travel and health documents for your Perth Airport trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's licence and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.
Travelling to a place near Perth?
Book flights to Perth if you plan to visit one of these locationsWhy use momondo?
Why should I use momondo to find a flight deal from Seattle to Perth?
Finding the right flight to Perth from Seattle is quick and easy when you have a range of options in front of you, from reputable agents and recognisable airlines. Options that can then be filtered down to find the best fit. That is what momondo does. We make finding flights to Perth quick and easy, saving you time and money.
Can I find flights from Seattle to Perth with flexible booking policies on momondo?
Yes. momondo enables you to select and highlight flights to Perth from Seattle with this policy.
How can momondo help me find flights from Seattle to Perth?
momondo helps you find the best flight between Seattle and Perth by providing filters to narrow your choice of flights to those matching your criteria. You can select flights based on numerous factors such as price, departure and landing times, airport and airline.
I’m not ready to book a flight from Seattle to Perth right now. Can momondo alert me if prices change?
If you are simply researching potential flights to Perth, momondo offers a useful price alert feature which will track prices for flights to Perth from Seattle and alert you when they change.