SEA - PER

$991 Find Cheap Flights from Seattle to Perth

This is the cheapest round-trip flight price found by a KAYAK user in the last 72 hours by searching for a flight from Seattle to Perth departing on 3/2. 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.
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These are the airlines KAYAK users have selected most often from within our search results in flight searches from Seattle to Perth, 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 Seattle to Perth, as well as popular online travel agencies
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Cheap Flight Deals from Seattle/Tacoma Intl to Perth (SEA-PER)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Seattle/Tacoma Intl to Perth 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.

Recent round-trip flight deals from Seattle to Perth

Recommended round-trip deals departing in the coming months from the most popular airlines that fly from Seattle to Perth.
Discover the best prices and deals for you by selecting your travel dates.
Choose your dates
12:45 pm - 4:35 pmSEA-PER
35h 50m2 stops
9:30 pm - 11:55 amPER-SEA
53h 25m2 stops
Sun, Mar 2 - Sun, Mar 9
12:00 pm - 4:35 pmSEA-PER
37h 35m2 stops
9:30 pm - 10:00 amPER-SEA
51h 30m2 stops
$1,052
Find Deal
Wed, Mar 19 - Wed, Mar 26
12:45 pm - 4:35 pmSEA-PER
35h 50m2 stops
9:30 pm - 11:55 amPER-SEA
53h 25m2 stops
$1,057
Find Deal
Sat, Mar 8 - Sat, Mar 15
8:40 am - 4:35 pmSEA-PER
39h 55m1 stop
10:55 pm - 7:54 amPER-SEA
47h 59m2 stops
$1,077
Find Deal
Sun, Mar 2 - Sun, Mar 9
5:05 pm - 6:45 pmSEA-PER
34h 40m1 stop
10:45 pm - 12:40 pmPER-SEA
28h 55m1 stop
$1,246Qatar Airways
Find Deal
Wed, Mar 19 - Wed, Mar 26
4:05 pm - 6:45 pmSEA-PER
34h 40m1 stop
10:45 pm - 12:40 pmPER-SEA
28h 55m1 stop
$1,268Qatar Airways
Find Deal
Sun, Mar 2 - Wed, Mar 12
10:15 am - 11:55 pmSEA-PER
22h 40m1 stop
1:10 am - 8:45 amPER-SEA
22h 35m1 stop
$1,322Singapore Airlines
Find Deal
Tue, Apr 22 - Wed, May 14
9:25 pm - 9:35 amSEA-PER
44h 10m2 stops
12:15 am - 2:53 pmPER-SEA
29h 38m2 stops
$1,340Cathay Pacific
Find Deal
Sun, Mar 2 - Tue, Mar 11
9:25 pm - 9:35 amSEA-PER
44h 10m2 stops
11:05 am - 10:00 amPER-SEA
37h 55m2 stops
$1,349Cathay Pacific
Find Deal
Sun, Mar 2 - Wed, Mar 12
10:15 am - 11:55 pmSEA-PER
22h 40m1 stop
1:10 am - 8:45 amPER-SEA
22h 35m1 stop
$1,367Singapore Airlines
Find Deal
Tue, Apr 15 - Mon, May 5

Flights from Seattle to Perth - Travel Insights & Trends

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

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

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Seattle to Perth, 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 Seattle to Perth is October, where tickets cost $1,428 (return) on average. On the other hand, the most expensive months are July and December, where the average cost of round-trip tickets is $2,028 and $1,985 respectively.

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

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights from Seattle to Perth, 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 Seattle to Perth, you should book around 1 week before departure. For the absolute cheapest price, our data suggests you should book 25 weeks before departure.

Good to know

Low season

April

High season

December

Cheapest flight

$991
Best time to beat the crowds but there is an average 2% increase in price.
Most popular time to fly with an average 20% increase in price.
Flight from Seattle to Perth

When to book flights from Seattle to Perth

Are your dates flexible? Find out the best times to travel from Seattle to Perth based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking flights from Seattle to Perth

  • What is the cheapest flight from Seattle to Perth?

    In the last 3 days, the lowest price for a flight from Seattle to Perth was $991 for a round-trip ticket.

  • Do I need a passport to fly between Seattle and Perth?

    Yes, you’ll need a passport to travel to Perth from Seattle.

  • Which aircraft models fly most regularly from Seattle to Perth?

    We unfortunately don’t have that data for this specific route.

  • Which airline alliances offer flights from Seattle to Perth?

    oneworld, and Star Alliance are the airline alliances operating flights between Seattle and Perth, with oneworld being the most commonly used for this route.

  • Which is the best airline for flights from Seattle to Perth, Singapore Airlines or Qatar Airways?

    The two airlines most popular with KAYAK users for flights from Seattle to Perth are Singapore Airlines and Qatar Airways. With an average price for the route of $1,605 and an overall rating of 8.1, Singapore Airlines is the most popular choice. Qatar Airways is also a great choice for the route, with an average price of $1,676 and an overall rating of 7.5.

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

    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 Seattle to Perth.

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Perth from Seattle 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 Seattle to Perth?

    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 to Perth with an airline and back to Seattle with another airline. Booking your flights between Seattle and PER can sometimes prove cheaper using this method.

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

    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 to Perth from Seattle up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

See more FAQs

Top 4 airlines serving from Seattle to Perth

 
See real verified KAYAK customer reviews for airlines flying from Seattle to Perth. 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 Seattle to Perth? 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 1328 reviews
8.2Boarding
8.0Entertainment
8.6Crew
7.7Food
7.9Comfort
Airline reviews

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

4.0 OkayRon, Jan 2025BNE - SIN
Read more Singapore Airlines reviews

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

It was very good experience on board to Sydney with SQ.

Everything was great keep up the good work 😁, can't ask for more.

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.

The food options and quality could use some more excitement and variety.

Overall, very good. The food was better than expected with the exception of the pork and potatoes dinner at the end of the flight. My family all selected that dish and did not set it. I tried a bite also and it was honestly terrible. Also, it would be helpful to know when the snacks in the back of the plane are available.

On time boarding I would like to see ground hostess to help transit customers to direct them to the right terminal and boarding gate. Last night, all the transit customers on SQ484 arriving Singapore had to merry go round to look for terminal and boarding gate to board SQ128 transit to KL Malaysia. We went to Terminal 3 taking the Skytrain to T3 and back to T3 to get out to look for different Skytrain to T2. On arrival t2, we had to go round to ask which boarding gate to KL. We only had 5 minutes to make to the boarding time at 6:55pm but we already spent more than 30 minutes running around to find the boarding gate. We were late at the boarding gate.

Timing very good from sfo to Singapore and service was awesome and economy class seats are great overall very good experience thanks

The seats were more narrow than at other lines. Food was mediocre (economy class)

The crew and their service was top notch, but the plane itself seemed to be on the older side and worn out. Also, the food could’ve been better. 9 out of 10.

Well organized boarding, efficient and on time. Nice crew on the plane. Thank you!

The Qatar Airways staff pre-boarding and also on the flight from Dallas to Doha were incredibly mediocre and arrogant. Consider retraining these individuals Other flights were ok.

My experience with Qatar airway was very unsatisfactory. They lost my child’s stroller and I was told they found it and will send it to the hotel which was a lie. I had to go back to the airport baggage claim and pick up myself after trying to contact them many times!. There was a lack professional and communication. I am very disappointed in Qatar airway and will not be recommending them to friends and family nor will I be flying with them in the future.

Worst air experience in whole life . Boarding and checking was hassle as they did 3 times. Crew team was clueless about passengers need. Despite of passengers raising hand , they were resetting the program

The food is not good and also if you ask crew to bring something they say ok I will bring but you will never get it. Please they should listen good to passengers

No difference between US airline and Qatar. Both cramp as many people. The airline seems to change planes without notice choice is seating when making reservations online doesn’t match the plane a passenger is on. Especially paying extra. Nothing special No different than US carriers.

Did not like anything. Seats were crammed, leg space was minimal and food was terrible. This was the first time traveling overseas in American Airlines and was the worst experience ever. Have learned a lesson to never travel in American Airlines.

Delayed my flights and no communication. We end up spending 6 hrs in Doha. No food or any concern from the airline. Terrible

Check in desk people constrained by fear. Obvious typo on Uganda visa, even though approved, caused loss of flight. Something is definitely wrong with this system.

Between Air India and Qatar my luggage was lost for three days. I eventually found my own luggage location using the Apple Air Tag. Air India used a paper form to report my lost luggage. I could never get past getting past luggage personnel with my report number before they would hang up on me. Only after them specifically telling Air India at Chandigarh airport where my luggage was located which was right under their noses did they react. After three days I finally received my luggage. The Air India luggage folks didn’t seem proactive in finding the luggage’s rightful owner.

Wheelchair assistance to move through the terminals and to/from the plane door was excellent. No vegan snack on the flight, only something with salami and cheese in it.

I have flown Qantas multiple times in the past it seemed this flight the plane had less seat room or the seats were way less comfortable than before. Everything else was about the same. Thanks

The old Plane had not been cleaned properly in a long time.

I got upgraded from economy to business, and the experience was outstanding

Boarding was over 3 hrs late and we didn’t land until almost 1:30am

I disliked the fact that they forced people to put up their seats during meal service

Headphone jacks worked poorly, seat recline was broken. Planes were rundown.

Delayed and missed connection, was not re-booked like other travelers so ended up being stuck for several hours due to no one handling my booking.

American Airlines was their usual junk service — but at least it got us down to LA. I was more irritated that while they codeshare with Alaska Airlines in Seattle, they could not out our flight on one of these, opting for one of the small SkyWest operated American Eagle flights — and causing a 14 hour layover. Which I accepted due to a $2000 difference in airfare — that said it was irritating for a flight that usually would have cost around $100 extra, if that.

same as previous comments. i hate being on a plane that long. no problems w/anything else.

Horrible I had a health emergency and couldn’t go Air Canada refused to allow me to reschedule

First, When I check in at Phx air Canada counter, I couldn’t make it myself, either at the check in counter, the lady told me that I need a Canada visa to take this plane, then I told her that I have a lots of friends go back to China and transfer in Canada, I’ve never heard they say they needed a visa to stay in the airport, also, I have US lawful green card, as I did research, I knew all U.S. green card holders don’t need a visa to go to Canada if stay a short time. And then they agent lady asked her workmates, spent over an hour then finally have the boarding passes for me. Secondly, my flight is from Phoenix to Hongkong, one stop at Vancouver, but I had to get my bag in Vancouver then re-check in again there. I asked them, they told me that because my layover time is too long (about 20 hours), so they can’t do bags check through. I understand this, just compared with other airlines I travel before, this isn’t a good experience to me.

Excellent crew, great food despite catering issues. We need more people like this.

Very good ! I would recommande it to my friend and family

Really poor travel experience. My first flight was cancelled, which cut my international trip short and threw off my schedule. I will not be flying Air Canada again if I can so help it. The crew and in-flight experience was pleasant and enjoyable but the consistent delays and cancellations are not worth it.

I was not even asked if I want some water. Joke. Steward gave me a biscuit cover in chocolate and did not even look at me.

Economy middle seat was so narrow that I could not sit back comfortably with passengers on either side of me. Over the 9-hour flight, with my body slightly twisted most of that time, my previously-healthy left knee became very painful, even though I got up to walk multiple times. The knee is still painful 3 weeks later. Otherwise, it was a nice flight, but I was crippled over my entire vacation.

Ok Did not like that the second leg of flight was moved earlier making it a rush to make

Ok Did not like that the second leg of flight was moved earlier making it a rush to make it

Overcharged by either United or Air Canada. Abuse of access to my credit/debit card.

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