$562 Find Cheap Flights from Perth to Washington

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Perth to Washington departing on 9/15. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy

KAYAK searches hundreds of travel sites at once for deals on flights to Washington

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Perth to Washington, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Perth to Washington, as well as popular online travel agencies
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Cheap Flights from Perth to Washington

Cheapest round-trip prices found by our users on KAYAK in the last 72 hours
Seattle
Seattle2 stops$911
Seattle
Seattle2 stops$911

Book Cheap Perth to Washington Plane Tickets

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Perth to Washington that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Perth to Washington

Thu, Sep 4 - Thu, Sep 18
Japan Airlines Logo
12:25 pm - 10:25 amPER-SEA
37h 00m2 stops
Japan Airlines Logo
1:30 pm - 12:40 amSEA-PER
44h 10m2 stops
$911Japan Airlines
Find Deal
Thu, Sep 4 - Sat, Sep 13
Japan Airlines Logo
12:25 pm - 10:25 amPER-SEA
37h 00m2 stops
Japan Airlines Logo
1:30 pm - 12:40 amSEA-PER
44h 10m2 stops
$958Japan Airlines
Find Deal
Thu, Sep 4 - Wed, Sep 17
 Logo
9:55 pm - 4:10 pmPER-SEA
33h 15m2 stops
 Logo
1:15 am - 8:40 pmSEA-PER
28h 25m2 stops
$1,014
Find Deal
Thu, Sep 4 - Fri, Sep 12
 Logo
9:55 pm - 4:10 pmPER-SEA
33h 15m2 stops
 Logo
1:15 am - 8:40 pmSEA-PER
52h 25m2 stops
$1,107
Find Deal
Thu, Nov 20 - Sun, Dec 7
Qantas Airways Logo
5:00 am - 5:12 pmPER-PDX
28h 12m2 stops
Qantas Airways Logo
12:35 pm - 11:50 pmPDX-PER
43h 15m2 stops
$1,112Qantas Airways
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Thu, Nov 20 - Sun, Dec 7
Qantas Airways Logo
8:00 am - 5:12 pmPER-PDX
25h 12m2 stops
Qantas Airways Logo
12:35 pm - 11:50 pmPDX-PER
43h 15m2 stops
$1,117Qantas Airways
Find Deal
Thu, Dec 25 - Sun, Jan 25
Air Canada Logo
6:00 am - 10:06 pmPER-SEA
32h 06m2 stops
Air Canada Logo
8:00 pm - 9:35 pmSEA-PER
33h 35m2 stops
$1,118Air Canada
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Thu, Dec 25 - Tue, Jan 27
Air Canada Logo
6:00 am - 10:06 pmPER-SEA
32h 06m2 stops
Air Canada Logo
8:00 pm - 3:55 pmSEA-PER
27h 55m2 stops
$1,183Air Canada
Find Deal
Mon, Oct 27 - Sat, Nov 15
Singapore Airlines Logo
1:10 am - 1:59 pmPER-SEA
27h 49m2 stops
Singapore Airlines Logo
8:45 am - 2:45 pmSEA-PER
38h 00m1 stop
$1,348Singapore Airlines
Find Deal
Wed, Nov 12 - Mon, Nov 17
Singapore Airlines Logo
1:10 am - 10:32 amPER-PDX
25h 22m2 stops
Singapore Airlines Logo
7:20 am - 12:35 pmPDX-PER
37h 15m3 stops
$1,900Singapore Airlines
Find Deal
Booking Insights

KAYAK's insights & trends for Perth to Washington flights

Get data-powered insights and trends into flights from Perth to Washington to help you find the cheapest flights, the best time to fly and much more.

What is the cheapest month to fly from Perth to Washington?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Perth to Washington, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from Perth to Washington is February, when tickets cost $1,123 (return) on average. On the other hand, the most expensive months are December and April, when the average cost of round-trip tickets is $1,873 and $1,453 respectively.

How far in advance should I book a flight from Perth to Washington?

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights from Perth to Washington, removes the top 0.1% to account for outliers, and then takes the average of all the values for each week.

To get a below average price on the flight from Perth to Washington, you should book around 4 weeks before departure, which saves you about 25% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 19 weeks before departure.


Good to know

Low seasonNovember
Cheapest flight$562
Best time to beat the crowds with an average 5% drop in price.
Most popular time to fly and prices are also 2% lower on average.
Flight from Perth to Seattle

FAQs - booking Washington flights

  • How does KAYAK find such low prices on flights from Perth to Washington?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Perth to Washington.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Perth to Washington?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight from Perth to Washington is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Perth to Washington?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly from Perth to Washington with an airline and back with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Perth to Washington?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying from Perth to Washington up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

  • What is the cheapest time of day to fly to Washington?

    The cheapest time of day to fly to Washington is generally at night, when round-trip flights cost $1,087 on average. The most expensive time of day to fly to Washington is generally at night, which is peak travel time and where the average cost of a ticket is $1,087.

Reviews of the top airline flying from Perth to Washington

 
See real verified KAYAK customer reviews for airlines flying from Perth to Washington. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Perth to Washington? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
8.1
Singapore AirlinesOverall score based on 1338 reviews
7.9Comfort
8.2Boarding
8.6Crew
8.0Entertainment
7.7Food
Airline reviews

Headwind delayed our flight which wasn’t the airlines fault

10.0 ExcellentRon, Jul 2025PER - SIN
Read more Singapore Airlines reviews

Headwind delayed our flight which wasn’t the airlines fault

Horrendous. We upgraded and they took the money but cancelled one of our tickets. The recline action didn’t work on the seats for the flight from Singapore to London, pre booked meals but they seemed to have disappeared as well.. Phone customer service was horrendous. Took 5 phone calls and no fix. Craig at the airport was the only one who seemed to be able to get the ticket back.

Construction at PDX resulting in very lung walk from the rental car to the gate. SFO, extremely long walk between terminals to get to connecting Singapore airlines flight. My smart watch recorded a total of 3 miles.

So happy I flew with Singapore Airlines. The customer service is top notch. I am terrified of flying and the staff made me feel so at ease. Will only fly Singapore internationally moving forward.

Food could have been better. Too many passengers getting up and down all the time.

Delayed 1hour due to storm still didn't get window seat for third flight despite paying £240 extra to book them

Flight from SFO did not include entertainment as it was not working the entire duration of the flight. Was informed that there would be a $350 voucher for the inconvenience. Uncertain how the voucher will be provided.

It was an average flight. I would have expected more from this airline. Food, seats, service, etc was just average. I just give them some extra points for offering free WiFi on board with just a Krisflyer account.

Check in was easy through self-check-in kiosks just like domestic flights. Staff onboard were fantastic. Some "book the cook" good options weren't great, others really good. Entertainment options a bit limited to what I've experienced on Qantas. Overall a good flight though, especially for the price.

I very much liked and appreciated the service on board. The seating arrangement in Business feels uncomfortable. It's not made for tall people, in any case.

Everything you need to know for your flight from Perth to Washington

Information on your arrival and departure airports

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