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Cheap flights from Seattle to Perth from $953

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 4/10. 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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Find the cheapest flights from Seattle to Perth

Cheap round-trip flights

KAYAK's recommended round-trip deals from the most popular airlines that fly from Seattle to Perth.
1:40 am - 5:10 pmSEA-PER
48h 30m2 stops
9:55 pm - 7:45 pmPER-SEA
36h 50m2 stops
$1,105
Find Deal
Mon, Sep 1 - Fri, Sep 12
1:10 am - 5:10 pmSEA-PER
49h 00m2 stops
6:25 pm - 7:30 pmPER-SEA
40h 05m2 stops
$1,151
Find Deal
Sat, May 10 - Sun, May 18
10:15 am - 8:40 pmSEA-PER
43h 25m1 stop
3:30 pm - 6:15 amPER-SEA
53h 45m2 stops
$1,258
Find Deal
Thu, May 8 - Thu, May 15
4:30 pm - 6:40 pmSEA-PER
35h 10m1 stop
10:45 pm - 12:45 pmPER-SEA
29h 00m1 stop
$1,267Qatar Airways
Find Deal
Sat, May 10 - Sat, May 17
4:30 pm - 6:40 pmSEA-PER
35h 10m1 stop
10:45 pm - 12:45 pmPER-SEA
29h 00m1 stop
$1,269Qatar Airways
Find Deal
Sun, May 11 - Sun, May 18
10:15 am - 11:55 pmSEA-PER
22h 40m1 stop
6:25 am - 8:45 amPER-SEA
41h 20m1 stop
$1,362Singapore Airlines
Find Deal
Tue, Sep 2 - Fri, Sep 12
10:15 am - 5:10 amSEA-PER
27h 55m1 stop
5:10 pm - 8:45 amPER-SEA
30h 35m1 stop
$1,368Singapore Airlines
Find Deal
Tue, Sep 2 - Fri, Sep 12
10:00 am - 9:30 pmSEA-PER
44h 30m2 stops
11:35 pm - 9:21 amPER-SEA
24h 46m2 stops
$1,575Air Canada
Find Deal
Mon, Jun 2 - Mon, Jul 21
7:15 pm - 9:30 pmSEA-PER
35h 15m2 stops
11:55 pm - 9:21 amPER-SEA
24h 26m2 stops
$1,577Air Canada
Find Deal
Mon, Jun 2 - Sun, Jul 20
4:00 pm - 11:15 amSEA-PER
28h 15m2 stops
10:30 am - 9:44 pmPER-SEA
26h 14m2 stops
$1,630Qantas Airways
Find Deal
Tue, Jun 3 - Fri, Jul 18

Qatar Airways flights from Seattle to Perth

Our best Qatar Airways deals on Seattle to Perth flight tickets
Qatar Airways
May 10
SEA4:30 pmSeattle/Tacoma Intl
35h 10m
1 stop
PER6:40 pmPerth
May 17
PER10:45 pmPerth
29h 00m
1 stop
SEA12:45 pmSeattle/Tacoma Intl
Qatar Airways
May 11
SEA4:30 pmSeattle/Tacoma Intl
35h 10m
1 stop
PER6:40 pmPerth
May 18
PER10:45 pmPerth
29h 00m
1 stop
SEA12:45 pmSeattle/Tacoma Intl
Qatar Airways
May 6
SEA4:30 pmSeattle/Tacoma Intl
35h 10m
1 stop
PER6:40 pmPerth
May 24
PER10:45 pmPerth
29h 00m
1 stop
SEA12:45 pmSeattle/Tacoma Intl

Singapore Airlines flights from Seattle to Perth

Our best Singapore Airlines deals on Seattle to Perth flight tickets
Singapore Airlines
Sep 2
SEA10:15 amSeattle/Tacoma Intl
22h 40m
1 stop
PER11:55 pmPerth
Sep 12
PER6:25 amPerth
41h 20m
1 stop
SEA8:45 amSeattle/Tacoma Intl
Singapore Airlines
Sep 2
SEA10:15 amSeattle/Tacoma Intl
27h 55m
1 stop
PER5:10 amPerth
Sep 12
PER5:10 pmPerth
30h 35m
1 stop
SEA8:45 amSeattle/Tacoma Intl
Singapore Airlines
Sep 2
SEA10:15 amSeattle/Tacoma Intl
22h 40m
1 stop
PER11:55 pmPerth
Sep 11
PER1:10 amPerth
30h 43m
2 stops
SEA4:53 pmSeattle/Tacoma Intl

See travel insights to Perth from

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 $1,426.

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 25 weeks ahead of your departure date. In general, you can expect to find flights to Perth for around $1,591 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 $1,199 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

Are you open to changing your travel dates? Check out the ideal times to fly from Seattle to Perth according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

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

Best Price Found

$953

Fastest flight time

22h 40m

Direct flights

None

Airports in Perth

1 airport
The best one-way flight to Perth from Seattle in the past 72 hours is $953. The best round-trip flight deal from Seattle to Perth found on momondo in the last 72 hours is $1,105.
The fastest flight from Seattle to Perth takes 22h 40m
There are no direct flights from Seattle to Perth. Popular non-direct route for this connection is Seattle/Tacoma Intl Airport - Perth Airport.
There is 1 airport near Perth: Perth (PER)

  • How far is Seattle/Tacoma Intl to Perth by plane?

    There are 9239.1 mi between Seattle/Tacoma Intl and Perth. 22h 40m 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?

  • 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?


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
Air CanadaPriceFrom $1,165Free CancellationRating
7.0
8,981 reviews
Search Air Canada flights
Singapore AirlinesPriceFrom $1,199Free CancellationRating
8.1
1,285 reviews
Search Singapore Airlines flights
Qatar AirwaysPriceFrom $1,335Free CancellationRating
7.4
3,538 reviews
Search Qatar Airways flights

Traveling to a place near Perth?

Book flights to Perth if you plan to visit one of these locations
Mandurah
Fremantle
Scarborough
Rottnest Island
Waikiki

Why 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.


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