SEA - SIN

S$ 342 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 14-2. 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.
1 adult
1 adult, Economy

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

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Seattle to Singapore, 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 Singapore, as well as popular online travel agencies
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Flight Deals

Cheap Flights from Seattle to Singapore (SEA-SIN)

 
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

Sun, 15 Feb - Thu, 12 Mar
Singapore Airlines Logo
08:45 - 17:45SEA-SIN
17h 00mdirect
Singapore Airlines Logo
09:00 - 08:10SIN-SEA
14h 10mdirect
S$ 727Singapore Airlines
Find Deal
Sun, 15 Feb - Thu, 12 Mar
Singapore Airlines Logo
08:45 - 17:45SEA-SIN
17h 00mdirect
Singapore Airlines Logo
09:00 - 08:10SIN-SEA
14h 10mdirect
S$ 729Singapore Airlines
Find Deal
Tue, 10 Feb - Tue, 17 Feb
Singapore Airlines Logo
08:45 - 17:45SEA-SIN
17h 00mdirect
Singapore Airlines Logo
09:00 - 07:10SIN-SEA
14h 10mdirect
S$ 764Singapore Airlines
Find Deal
Sat, 7 Feb - Thu, 26 Feb
Singapore Airlines Logo
08:45 - 17:45SEA-SIN
17h 00mdirect
Singapore Airlines Logo
09:00 - 07:10SIN-SEA
14h 10mdirect
S$ 770Singapore Airlines
Find Deal
Sun, 12 Oct - Sun, 19 Oct
Philippine Airlines Logo
23:35 - 13:20SEA-SIN
22h 45m1 stop
Philippine Airlines Logo
14:35 - 19:15SIN-SEA
19h 40m1 stop
S$ 791Philippine Airlines
Find Deal
Sun, 15 Feb - Thu, 12 Mar
Philippine Airlines Logo
21:30 - 13:00SEA-SIN
23h 30m1 stop
Philippine Airlines Logo
14:10 - 19:35SIN-SEA
20h 25m1 stop
S$ 793Philippine Airlines
Find Deal
Tue, 10 Feb - Tue, 17 Feb
 Logo
08:45 - 17:45SEA-SIN
17h 00mdirect
 Logo
09:15 - 13:52SIN-SEA
20h 37m1 stop
S$ 835
Find Deal
Wed, 15 Oct - Thu, 23 Oct
 Logo
07:00 - 19:10SEA-SIN
21h 10m1 stop
 Logo
09:00 - 08:45SIN-SEA
14h 45mdirect
S$ 881
Find Deal
Thu, 30 Oct - Thu, 13 Nov
Air Canada Logo
10:05 - 07:00SEA-SIN
29h 55m1 stop
Air Canada Logo
08:50 - 22:06SIN-SEA
29h 16m1 stop
S$ 921Air Canada
Find Deal
Thu, 29 Jan - Sun, 8 Feb
Air Canada Logo
15:40 - 07:00SEA-SIN
23h 20m1 stop
Air Canada Logo
21:00 - 19:16SIN-SEA
38h 16m2 stops
S$ 924Air Canada
Find Deal

Everything you should know

Top airlines
Singapore Airlines
Cheapest • from S$ 727 (return)
Singapore Airlines
Best reviews • 8.1 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
When to book
3 weeks
in advance
Our data shows that travellers who book at least 3 weeks in advance save around 32% compared to booking last minute.
Insights
Insights
Insights
Insights
When to travel
February
Cheapest • 19% price drop
December
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
+1
Direct flights
5 days a week
There are direct flights from Seattle to Singapore 5 days a week: Tue, Thu, Fri, Sat, Sun.
Direct flights
Direct flights
Direct flights
Direct flights
Cheapest return fare
S$ 727
Overall average: S$ 985
Singapore Airlines
Sun 15-2Thu 12-3
SEA - SIN • Direct
Cheapest one-way flight
S$ 342
Typical prices: S$ 480-694
Singapore Airlines
Sat 14-2
SEA - SIN • Direct
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KAYAK searches hundreds of sites at once to find you the best travel deals.
We hope you love your trip to Singapore!
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 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, where tickets cost S$ 985 (return) on average. On the other hand, the most expensive months are December and June, where the average cost of round-trip tickets is S$ 1,961 and S$ 1,455 respectively.

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$ 872, prices are generally cheapest when you fly direct.

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 the flight from Seattle to Singapore, you should book around 3 weeks before departure, which saves you about 32% 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$ 342
Best time to beat the crowds (14% less expensive on average)
Most popular time to fly (61% more expensive on average)
Flight from Seattle to Singapore

When to book flights from Seattle to Singapore

Are your dates flexible? Find out the best times to travel from Seattle to Singapore based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated return price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or returns 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 Singapore

  • Is a visa required for entry into Singapore?

    For tourist visits of less than 90 days, you will not need to apply for a visa before flying to Singapore. A visa will only be required for business travel and if you plan to stay longer than the 90-day visa-free limit. However, your passport should have at least six months of validity and two pages of entry stamps.

  • What are the layover options from Seattle to Singapore?

    The layover depends on the airline you’re traveling with. The most popular options on this route include London, for British Airways flights, Dubai for Emirates flights, San Francisco when flying with United Airlines, and Incheon when flying with Korean Air. It is important to look up the transit visa requirements before booking to avoid unnecessary inconveniences.

  • Which benefits do I get when I upgrade to first class?

    A first-class ticket makes your trip a lot more comfortable which is especially important for such long-haul trips. You get way more legroom compared to if you were in economy and the seats can recline to a full 180 giving you a makeshift bed which comes in handy with the complimentary pillow. In addition, the meal selection is different and you get up to five-course meals and a premium selection of drinks including wine, champagne, beer, and spirits. Lastly, you get priority boarding for your flight which allows you to settle before departure.

  • How do I access the city center from Singapore Changi Airport (SIN)?

    The Metro is arguably the best transport option to the city center because it is inexpensive and fast connecting to various destinations around the city. However, there is no direct line to the city center meaning you have to change at Tanah Merah Station, and from there you can access any part of the city center. If you have a lot of luggage, the metro can be quite inconvenient, especially during rush hours. A good alternative would be taking a taxi which will drop you at any location you want and the best part is they have a lot of luggage space.

  • What is the cheapest flight from Seattle to Singapore?

    In the last 3 days, the lowest price for a flight from Seattle to Singapore was S$ 267 for a one-way ticket and S$ 567 for a return.

  • Which airports will I be using when flying from Seattle to Singapore?

    Seattle and Singapore are both served by 1 main airport. You will leave Seattle from Seattle/Tacoma Intl and will be arriving at Singapore Changi.

  • Which airlines offer Wi-Fi service onboard planes from Seattle to Singapore?

    Only Asiana Airlines offers inflight Wi-Fi service on the Seattle to Singapore flight route.

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

    The Airbus A350-900 is the aircraft model that flies most regularly on the Seattle to Singapore flight route.

  • Which airline alliances offer flights from Seattle to Singapore?

    Star Alliance is the only airline alliance operating flights between Seattle and Singapore.

  • On which days can I fly direct from Seattle to Singapore?

    You can catch a direct flight from Seattle to Singapore on on Tuesday, Thursday, Friday, Saturday, and Sunday.

  • 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 to Singapore 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 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 to Singapore with an airline and back to Seattle 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 to Singapore from Seattle up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

KAYAK’s top tips for finding a cheap flight from Seattle to Singapore

  • Looking for a cheap flight? 25% of our users found flights on this route for S$ 381 or less one-way.
  • Emirates is arguably the best airline to book with when flying Business. The Emirates A380 has private cabins and even a shower spa to keep you refreshed during your travels.
  • Korean Air has the best baggage allowance for travelers flying in economy class. You get a carry-on bag and two checked bags for free which isn’t the case for most airlines as they will only allow a carry-on and maybe one checked bag at best.
  • EVA Air is a good option when traveling with kids. They provide Wi-Fi, seat back on-demand TV, and charging outlets for economy passengers meaning you can keep the kids entertained and distracted for the whole journey.
  • If you’re looking to fly more sustainably, United Airlines is a great option to go with. They are already in the process of investing in sustainable aviation fuel for their flights which should help reduce carbon emissions significantly.
  • The Green Line Sound Transit offers a budget-friendly way to get to Seattle-Tacoma International Airport (SEA) from downtown Seattle. It is also convenient during rush hour to help you avoid traffic.

Prefer to fly direct from Seattle/Tacoma Intl to Singapore Changi?

 
Nonstop data is based off flight results for the next 60 days. Find direct flights from all airlines flying nonstop from Seattle/Tacoma Intl to Singapore Changi.
Find which airlines fly direct from Seattle/Tacoma Intl Airport to Singapore Changi Airport, which days they fly and book direct flights.

Direct departures

Seattle/Tacoma Intl to Singapore Changi

Tuesday

Singapore Airlines

Singapore Airlines

Thursday

Singapore Airlines

Singapore Airlines

Friday

Singapore Airlines

Singapore Airlines

Saturday

Singapore Airlines

Singapore Airlines

Sunday

Singapore Airlines

Singapore Airlines

See more direct flights

Direct returns

Singapore Changi to Seattle/Tacoma Intl

Tuesday

Singapore Airlines

Singapore Airlines

Thursday

Singapore Airlines

Singapore Airlines

Friday

Singapore Airlines

Singapore Airlines

Saturday

Singapore Airlines

Singapore Airlines

Sunday

Singapore Airlines

Singapore Airlines

See more direct flights

Reviews of the top airline flying from Seattle to Singapore

 
See real verified KAYAK customer reviews for airlines flying from Seattle to Singapore. 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 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 1365 reviews
7.7Food
8.2Boarding
8.0Entertainment
8.6Crew
8.0Comfort
Airline reviews

Airline should consider adding a small meal at the last leg of the flight, right now there is 7 hours of no meal break.

8.0 ExcellentAmar, Sept 2025BLR - SIN
Read more Singapore Airlines reviews

Airline should consider adding a small meal at the last leg of the flight, right now there is 7 hours of no meal break.

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.

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

Information on your arrival and departure airports

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