S$ 466 Find Cheap Flights from Seattle to Singapore

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Seattle to Singapore departing on 21-11. 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

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Best Singapore Flight Deals from Seattle

Cheapest return prices found by our users on KAYAK in the last 72 hours
Singapore
SingaporedirectS$ 826
Singapore
SingaporedirectS$ 826

Cheap Flights from Seattle to Singapore

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for return flights from Seattle to Singapore 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 return flight deals from Seattle to Singapore

Fri, 17 Oct - Fri, 31 Oct
Singapore Airlines Logo
10:15 - 17:35SEA-SIN
16h 20mdirect
Singapore Airlines Logo
09:00 - 08:10SIN-SEA
14h 10mdirect
S$ 826Singapore Airlines
Find Deal
Fri, 13 Feb - Fri, 27 Feb
Singapore Airlines Logo
08:45 - 17:45SEA-SIN
17h 00mdirect
Singapore Airlines Logo
09:00 - 07:10SIN-SEA
14h 10mdirect
S$ 829Singapore Airlines
Find Deal
Sun, 14 Sep - Sun, 21 Sep
Philippine Airlines Logo
23:35 - 23:20SEA-SIN
32h 45m1 stop
Philippine Airlines Logo
10:25 - 19:15SIN-SEA
23h 50m1 stop
S$ 838Philippine Airlines
Find Deal
Wed, 26 Nov - Mon, 1 Dec
Philippine Airlines Logo
21:30 - 13:00SEA-SIN
23h 30m1 stop
Philippine Airlines Logo
20:10 - 18:35SIN-SEA
38h 25m1 stop
S$ 839Philippine Airlines
Find Deal
Wed, 28 Jan - Sun, 8 Feb
Asiana Airlines Logo
00:10 - 21:55SEA-SIN
29h 45m1 stop
Asiana Airlines Logo
23:10 - 13:55SIN-SEA
30h 45m1 stop
S$ 909Asiana Airlines
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Sun, 14 Sep - Wed, 17 Sep
Asiana Airlines Logo
14:15 - 21:30SEA-SIN
40h 15m1 stop
Asiana Airlines Logo
22:50 - 12:30SIN-SEA
28h 40m1 stop
S$ 910Asiana Airlines
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Sat, 7 Feb - Thu, 26 Feb
 Logo
08:45 - 17:45SEA-SIN
17h 00mdirect
 Logo
09:20 - 16:36SIN-SEA
23h 16m2 stops
S$ 915
Find Deal
Sun, 21 Sep - Thu, 9 Oct
Air Canada Logo
14:55 - 07:05SEA-SIN
25h 10m1 stop
Air Canada Logo
09:10 - 14:16SIN-SEA
20h 06m1 stop
S$ 924Air Canada
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Sun, 7 Sep - Sun, 21 Sep
Air Canada Logo
10:00 - 07:05SEA-SIN
30h 05m1 stop
Air Canada Logo
09:10 - 14:16SIN-SEA
20h 06m1 stop
S$ 931Air Canada
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Wed, 24 Sep - Fri, 24 Oct
 Logo
17:59 - 07:50SEA-SIN
22h 51m1 stop
 Logo
09:00 - 08:45SIN-SEA
14h 45mdirect
S$ 932
Find Deal
Booking Insights

KAYAK's insights & trends for Seattle to Singapore flights

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

What is the cheapest Seattle to Singapore flight route?

Data is based on round-trip flight searches on KAYAK over the past month.

The cheapest ticket to Singapore from Seattle found in the last 72 hours was to Singapore, at S$ 875 return. The most popular route is from Seattle (SEA) to Singapore (SIN), and the cheapest round-trip airline ticket found on this route in the last 72 hours was S$ 875.

Can I save money by flying with a stopover from Seattle to Singapore?

The average return price for all direct flights, flights with one stopover, and flights with two stopovers for the route found by users searching on KAYAK in the last 2 weeks.

No, with an average price for the route of S$ 875, prices are generally cheapest when you fly direct.

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

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Seattle to Singapore, 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 Singapore is February, when tickets cost S$ 994 (return) on average. On the other hand, the most expensive months are December and June, when the average cost of return tickets is S$ 1,980 and S$ 1,460 respectively.

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

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 Singapore, 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 a flight from Seattle to Singapore, you should book around 3 weeks before departure, which saves you about 33% compared to booking last-minute. For the absolute cheapest price, our data suggests you should book 12 weeks before departure.

Good to know

Low seasonSeptember
Cheapest flightS$ 466
Best time to beat the crowds (11% less expensive on average)
Most popular time to fly (61% more expensive on average)
Flight from Seattle to Singapore

FAQs - booking Singapore flights

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

    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 Singapore.

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

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

  • What is the Hacker Fare option on flights from Seattle to Singapore?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional return ticket. You could then fly from Seattle to Singapore 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 Seattle to Singapore?

    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 Seattle to Singapore 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 Singapore?

    The cheapest time of day to fly to Singapore is generally in the morning, when retur flights cost S$ 1,109 on average. The most expensive time of day to fly to Singapore is generally in the afternoon, which is peak travel time and where the average cost of a ticket is S$ 1,448.

Reviews of the top airline flying from Seattle to Singapore

 
Need help choosing which airline to fly with from Seattle to Singapore? 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 1347 reviews
7.7Food
8.2Boarding
8.0Comfort
8.6Crew
8.0Entertainment
Airline reviews

Lounge a access was excellent as was the attentiveness and service from the crew as always. The food and drink supplied were of good quality. The entertainment system had a good selection and I liked the mapping system supplied. However the screen wild have been bigger and the operation a little smoother to navigate. The seats were barely comfortable, but adequate.

8.0 ExcellentAnthony, Aug 2025BNE - SIN
Read more Singapore Airlines reviews

Lounge a access was excellent as was the attentiveness and service from the crew as always. The food and drink supplied were of good quality. The entertainment system had a good selection and I liked the mapping system supplied. However the screen wild have been bigger and the operation a little smoother to navigate. The seats were barely comfortable, but adequate.

Crew and service excellent. 2 hour delay for takeoff. SQ app showed flight on time.

Headwind delayed our flight which wasn’t the airlines fault

The food wasn’t good at all. I skipped meals .

We were not given option for meals since they ran out of the other option but good thing the remaining options tasted great.

Both the staff at check-in counter and on board were pleasant and helpful. My chicken and mashed potato was good, sauce was tasty, but the zucchini, carrot n other accompanying vegetables were over-cooked a little. (I understand the meal has to be prepared earlier). Yet I would fly on Singapore Airlines again and recommend it to family and friends.

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.

The seat in economy class and legroom in Singapore airline are narrower than Korean airlines! I don’t have that comforting feeling flying with Singapore air as in the past!

Loved the airline with the exception of their carry on limitations. They enforce a strict 7 kilo limit for carry on baggage which is ridiculous. We traveled from SFO to SIN with carry on with no difficulty yet when we checked in Delhi they forced us to check the carry on bags. The weight of our carry on bags were 11 and 12 kilos and while they exceeded the limitations set by Singapore Airlines they were well under weight limitations set by may other carriers. Interestingly my wife and I were each allowed two 22 KG bags to check in addition to the 7 kg carry on for a total weight of 102 KG's. Our total weight with the one bag we planned to check and our two carry ons was 46 kgs.

Crew and service was excellent, but passengers should be offered a welcome drink before take off which did not happen. Food was very good. Unfortunately the lie-flat bed in business class was one of the most uncomfortable I have experienced. The configuration forces you to sleep with your legs at an angle instead of in a straight line, plus there is very little padding on the bed so it wasn't possible to sleep for more than 2-3 hours on an 18 hour flight. For what the airlines charges for a business class ticket their hard product leaves a lot to be desired.

Everything you need to know for your flight from Seattle to Singapore

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