Cheap flights from Seattle to Perth from $552
This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Seattle to Perth departing on 9/5. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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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?
In general, February is the cheapest month to fly from Seattle to Perth. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $1,311. If you are unable to visit Perth during the month of February, then departing from Seattle during the month October is also very affordable. Most momondo users find prices during this month for around $1,436.
What is the cheapest day to depart on your flight to Perth?
The cheapest day to depart on your flight to Perth is on a Sunday when prices can be found for as low as $1,482. This is often the case because there is less demand to fly during this day of the week. The most expensive day to fly to Perth is Friday, with ticket prices averaging around $1,858.
What is the cheapest time of day to depart on your flight to Perth?
In the evening is the cheapest time of day to fly from Seattle to Perth when you can find flight prices for as low as $1,497. Flying to Perth in the evening is an ideal time because this is during off-peak travel hours. Try not to purchase tickets in the morning because they tend to be around $1,690. Of course, these prices can vary depending on the time of year and what airport you fly to.
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 weeks ahead of your departure date. In general, you can expect to find flights to Perth for around $1,531 when searching 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 $1,199 on momondo.
What is the cheapest airline that flies from Seattle/Tacoma Intl to Perth?
Qantas Airways, Philippine Airlines, and Singapore Airlines are the most popular carriers operating from Seattle/Tacoma Intl to Perth
What airlines fly to Perth?
Singapore Airlines, Qatar Airways and Qantas Airways are the top three most popular airlines that fly to Perth from Seattle according to our data. Singapore Airlines is the first choice among our users, with 58% of people opting to fly with this airline when traveling to Perth. Keep in mind that there are 4 different airlines that fly to Perth on a routine basis, so you have a few additional options to choose from.
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?
There are 9239.1 mi between Seattle/Tacoma Intl and Perth. 23h 10m is a normal flight duration for this route.
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 were last updated today.
How many operators does momondo search for flights from Seattle/Tacoma Intl Airport to Perth Airport?
The number of operators available for flights from Seattle/Tacoma Intl Airport to Perth Airport is 4 as of July 2025.
How old do you have to be to fly from Seattle/Tacoma Intl Airport to Perth Airport?
The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. 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 travel and health documents you'll need for your trip to Perth Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Perth Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.
What is the most popular airline from Seattle to Perth?
Based on momondo bookings for this flight route, the most popular airline on flight routes from Seattle to Perth is Singapore Airlines (58% of total bookings). The next most popular airlines are Qatar Airways (24%), Qantas Airways (11%), and Air Canada (8%).
Best airlines flying from Seattle to Perth
Compare and see reviews for airlines that fly from Seattle to Perth with momondo
| Airline | Rating | Free Cancellation | Price | ||
|---|---|---|---|---|---|
| PriceFrom $1,165 | Free Cancellation | Rating 7.1 9,681 reviews | |||
| PriceFrom $1,251 | Free Cancellation | Rating 8.1 1,320 reviews | |||
| PriceFrom $1,315 | Free Cancellation | Rating 7.4 3,594 reviews | |||
| PriceFrom $1,378 | Free Cancellation | Rating 7.5 868 reviews |
Traveling 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?
momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights from Seattle to Perth. Millions of users trust and use momondo every year so you are in good hands.
Can I find flights from Seattle to Perth with flexible booking policies on momondo?
Flights from Seattle to Perth with flexible booking policies can be found by using the search form above and then selecting our dedicated flexible booking filter, which will highlight only the flights where this policy is applied.
How can momondo help me find flights from Seattle to Perth?
Once you have performed a search in the form on the page, momondo provides useful filters and insights. We can show you the cheapest days and times to fly as well as help filter your options to help you make an informed choice when booking flights to Perth from Seattle.
I’m not ready to book a flight from Seattle to Perth right now. Can momondo alert me if prices change?
Price alerts on flights to Perth from Seattle are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.