SIN - SEA

S$ 532 Find Cheap Flights from Singapore to Seattle

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Singapore to Seattle departing on 19-5. 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, 0 bags

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

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

Cheapest return fare
S$ 965
Overall average: S$ 1,108
Cathay Pacific
Tue 5-5Sat 16-5
SIN - SEA • 1 stop
Cheapest direct flights
S$ 1,199
Typical prices: S$ 1,236-S$ 1,468
Singapore Airlines
Fri 20-3Sun 29-3
SIN - SEA • Direct
Top airlines
Cathay Pacific
Cheapest • from S$ 965 (return)
STARLUX Airlines
Best reviews • 8.9 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
When to book
2 weeks
in advance
Our data shows that travellers who book at least 2 weeks in advance save around 18% compared to booking last minute.
Insights
Insights
Insights
Insights
When to travel
October
Cheapest • 10% price drop
June
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 Singapore to Seattle 5 days a week: Tue, Thu, Fri, Sat, Sun.
Direct flights
Direct flights
Direct flights
Direct flights
Start a new search
KAYAK searches hundreds of sites at once to find you the best travel deals.
We hope you love your trip to Seattle!
Flight Deals
Booking Insights
Flight Deals

Cheap Flights from Singapore to Seattle (SIN-SEA)

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

Tue, 5 May - Sat, 16 May
Cathay Pacific Logo
01:45 - 10:05
SIN
-
SEA
23h 20m
1 stop
Cathay Pacific Logo
11:45 - 00:45
SEA
-
SIN
22h 00m
1 stop
S$ 965Cathay Pacific
Tue, 31 Mar - Thu, 16 Apr
Cathay Pacific Logo
20:05 - 10:05
SIN
-
SEA
29h 00m
1 stop
Cathay Pacific Logo
11:45 - 00:45
SEA
-
SIN
22h 00m
1 stop
S$ 968Cathay Pacific
Mon, 30 Mar - Thu, 16 Apr
Cathay Pacific Logo
16:05 - 10:05
SIN
-
SEA
33h 00m
1 stop
Cathay Pacific Logo
11:45 - 00:45
SEA
-
SIN
22h 00m
1 stop
S$ 970Cathay Pacific
Sat, 28 Feb - Sat, 7 Mar
China Airlines Logo
02:00 - 18:10
SIN
-
SEA
32h 10m
1 stop
China Airlines Logo
00:10 - 13:05
SEA
-
SIN
20h 55m
1 stop
S$ 982China Airlines
Mon, 13 Apr - Thu, 14 May
Cathay Pacific Logo
07:20 - 10:05
SIN
-
SEA
17h 45m
1 stop
Cathay Pacific Logo
11:45 - 11:45
SEA
-
SIN
33h 00m
1 stop
S$ 1,019Cathay Pacific
Wed, 17 Jun - Mon, 29 Jun
STARLUX Airlines Logo
14:00 - 16:10
SIN
-
SEA
17h 10m
1 stop
STARLUX Airlines Logo
01:15 - 12:40
SEA
-
SIN
20h 25m
1 stop
S$ 1,026STARLUX Airlines
Wed, 18 Mar - Tue, 24 Mar
STARLUX Airlines Logo
14:45 - 16:05
SIN
-
SEA
16h 20m
1 stop
STARLUX Airlines Logo
00:45 - 13:25
SEA
-
SIN
21h 40m
1 stop
S$ 1,028STARLUX Airlines
Thu, 26 Mar - Sun, 29 Mar
STARLUX Airlines Logo
14:45 - 16:05
SIN
-
SEA
16h 20m
1 stop
STARLUX Airlines Logo
01:15 - 12:40
SEA
-
SIN
20h 25m
1 stop
S$ 1,030STARLUX Airlines
Sun, 3 May - Tue, 12 May
Asiana Airlines Logo
22:50 - 14:55
SIN
-
SEA
31h 05m
1 stop
Asiana Airlines Logo
00:55 - 21:30
SEA
-
SIN
29h 35m
1 stop
S$ 1,031Asiana Airlines
Thu, 5 Mar - Thu, 30 Apr
Multiple Airlines Logo
14:25 - 18:10
SIN
-
SEA
19h 45m
1 stop
Multiple Airlines Logo
19:04 - 12:35
SEA
-
SIN
26h 31m
2 stops
S$ 1,033Multiple Airlines
Booking Insights

KAYAK's insights & trends for Singapore to Seattle flights

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

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

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Singapore to Seattle, 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 Singapore to Seattle is October, where tickets cost S$ 993 (return) on average. On the other hand, the most expensive months are January and December, where the average cost of round-trip tickets is S$ 1,206 and S$ 1,147 respectively.

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

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights from Singapore to Seattle, 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 Singapore to Seattle, you should book around 2 weeks before departure, which saves you about 18% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 12 weeks before departure.

Good to know

Low seasonOctober
Cheapest flightS$ 532
Best time to beat the crowds (11% less expensive on average)
Most popular time to fly and prices are also 1% lower on average.
Flight from Singapore to Seattle

When to book flights from Singapore to Seattle

Are your dates flexible? Find out the best times to travel from Singapore to Seattle 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 Singapore to Seattle

  • What is the cheapest flight from Singapore to Seattle?

    In the last 3 days, the lowest price for a flight from Singapore to Seattle was S$ 532 for a one-way ticket and S$ 965 for a return.

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

    On your way to Seattle, you’ll fly out from Singapore Changi. You’ll be landing at Seattle/Tacoma Intl.

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

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

  • Which airline alliances offer flights from Singapore to Seattle?

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

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

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

  • Which is the best airline for flights from Singapore to Seattle, STARLUX Airlines or EVA Air?

    The two airlines most popular with KAYAK users for flights from Singapore to Seattle are STARLUX Airlines and EVA Air. With an average price for the route of S$ 1,094 and an overall rating of 8.9, STARLUX Airlines is the most popular choice. EVA Air is also a great choice for the route, with an average price of S$ 1,101 and an overall rating of 8.4.

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

    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 Singapore to Seattle.

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

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

    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 Seattle with an airline and back to Singapore with another airline.

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

    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 Seattle from Singapore 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 Singapore to Seattle

  • Looking for a cheap flight? 25% of our users found flights on this route for S$ 1,584 or less round-trip.

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

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

Direct departures

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

Direct returns

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

Reviews of the top 5 airlines flying from Singapore to Seattle

 
See real verified KAYAK customer reviews for airlines flying from Singapore to Seattle. 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 Singapore to Seattle? 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.
8.9
STARLUX AirlinesOverall score based on 269 reviews
8.8Entertainment
9.1Crew
8.9Boarding
8.8Comfort
8.6Food
Airline reviews

Th tray was dirty when pulled it out. Still oily and food stains can clearly see last trip cleaner did not clean well. The toilet sink water did not drain quickly enough.

10.0 ExcellentAnonymous, Jan 2026
TPE - SFO
Read more STARLUX Airlines reviews

Th tray was dirty when pulled it out. Still oily and food stains can clearly see last trip cleaner did not clean well. The toilet sink water did not drain quickly enough.

Majority of the movie entertainment loaded in the aircraft were quite old.

Crew is very attentive. Another new airbus 350-900 plane. Very modern.

Passengers were confused and freaking out coz the flight information wasn’t showing on the board that was running with all the departing flights. B9 gate was still showing Cathay Pacific bound for HK 15:50 was on until 22:07. STARLUX staff cameater but didn’t let the passengers go in to pre departure area until 22:45 for the 23:30 boarding time

The aircraft is fairly new. The screen is big and it's great to enjoy movies on a long haul flight. However, the food quality , and drink and snack selections, have room for improvement.

Preboarding food selection is an excellent idea. On the other end I did know the choice. People in my area know the choice. It ends with I got my meal till most of them are half way to finish their meal.

Overall it’s good . However the food quality can be improved .

My luggage was forced open and broke the zipper. I received it in a huge STARLUX plastic bag. Unfortunately, I have a round trip ticket but might be my first and last with this airline

I went to the gate that showed on the flight board but they changed gates at the last minute and I missed my flight. I had to buy new ticket from EVA air to Manila and take 3 hour bus ride back to my home. Will never fly Starlux again!

Starlux was great service and awesome food and drinks👍🏼 will take starlux again for my next vacation👍🏼

This flight was long and I am so thankful I had a seat in the back of the plane. As I usually must get up and stretch every hour . The crew were probably the most friendly I have flown with. Thanks and I will book again with Eva air. Food was ok too.

It was a pleasure to fly with EVA airlines from Taipei to San Francisco.

I love EVA airline, but the KAYAK website for not in emergency, urgency and personal issues. For instance, on January 5/2026 with already booked the flight, I have a 15 hours of delay between airport when booked before as my choice. But if I want to go back home (U.S) early, then I have to contact the KAYAK office at I was in other country without phone service and nothing that EVA can do for me. Even I offered to pay more to change from another flight to go to the U.S early, not wasting at15 hours of delay, but EVA could not help me until I call KAYAK at an Island of nation. No office of KAYAK from any nation and times of difference in the world. However, everything and everyone is the best. Therefore, please KAYAK making much more easy for both the airline and passenger in some issues at the middle of nowhere in some country when no need to call KAYAK for some emergency, urgency, sick, etc or personal reference. Please, please, please no need to call KAYAK office for any changes of flights from urgency or private.

My seat arrangement was good with Eva Air. The toilet sanitary was good ( hand wash, face moist spraying, fresh air spray, hair moisturizer). But the Asian movie selection was not great at all.

Don’t preorder the diabetic meal if you don’t have to. Whoever creates those meals thinks everyone loves fish, and hates seasoning. In a world where we can find diabetic friendly candy and low card bread, it’s surprising that places are still serving flavorless gelatin and rice cakes. Boarding in Taipei was chaos. They tried to form a line but didn’t manage it. So once the gate was opened, the line didn’t matter and everyone just mobbed to the front.

Eva airlines has very goin service, despite being low cost. Meals and fin, not amazing, restrooms always clean and staff polite and helpful

Its fantastic!!I like the food the serve in EVA air😊

Flight was canceled was only given only a 8 hour lead time. Had to fight to be put on another airline (United Airlines) that was leaving earlier then the one EVA and rescheduled.

Staff show very stress with delayed flight more than passenger.

Awful had to ask for a supervisor to sit with my flight companion even t booked the tickets together weeks before

Flight attendants. Food, entertainment and most of all, be on time.

Very bad. They don’t allow group people to sit together by blocking most of seats and opening only single seat during online checking in. . By doing so, they can rip off customers at the check-in counter by collecting extra money if we want to sit together in the same row.

The flat bed full lying position is not comfortable at all, this could be improved, it is at an awkward position which i dont have the same issues with other airlines business class.

The flight was uneventful and the crew was kind and professional. Really appreciate the option to order a vegan meal for the flight!

I love my Delta crew, they were so welcoming and helpful.

I absolutely loved my flight from Taipei to LAX. I was originally assigned to a different seat, however one of the stewardess noticed I was uncomfortable in my seat. She offered to move me to a more comfortable setting. Although she didn’t have to do what she did, I am more than grateful and thankful for her doing so. My longer flight felt much more comfortable, just by her taking notice. I really appreciate her.

Sat next to a woman who had her period. Blood was on her seat and on the arm rest between us. I ended up having period blood on my jacket and shoes. Very gross!

Staff was so nice and very helpful with directions aswell!

Most relaxing long distance flight I have been on. And I have flown on many.

Very routh cabin crew food is only 2 meals for 13 hours fry with them They should get better training how to service good super routh language and talking with customer

First time flying with Singapore airlines and I’ll give them two thumbs up 👍 👍

I find it was a bit hot before take off. If there is a way to improve the airflow it would be great

Excellent service. I pre-ordered gluten intolerant meal and they handle it with care. They served me my meal before other people's to avoid crossed contamination. Thank you 🙏

No frills airline with minimal leg room and no entertainment

The flight arrived on time. 2×2 seating meant no one needed to sit in the middle. This was a connectibf flight from Singapore and required going to 3 counters in different levels to check a golf bag

Food was just okay, need to improve for other menu variations

The consistency with Singapore Airlines is fantastic. Crew are always brilliant and food delicious in business class

Wish the seat don’t have restrictions, can’t fully insert backpack all the way inside.

Service was top notch and the attention to passengers is great. Takeoff and landing was on schedule. Food selection is good

I have difficulties to book wheelchair for my parents returned flight

the whole trip was smooth, and as comfortable as flying is these days. flight crew was friendly and very courteous and helpful.

Very poor. The flight was delayed from Toronto because some forget to do there job . I got to my connecting gate in San Francisco 10 minutes before the departure.but this didn’t let me board even though the flight was still there for an other 30 minutes. The the gentleman at the unite airline desk told me that they usually wait for passengers but air Canada called and told them not to we I been rerouted to Manila instead of Hong Kong . In San Francisco they mad me check in my carryon bag . I was told the it will directly go yo ho chi minn cuyt but I was told that by the Vietnams airline desk that’s not there I’m 10 hours behind my scheduled flight and looks like I I’m going without baggage. I don’t have a chance of catching ..

Great other than a couple very drunk guys that for a while kept bumping my seat from behind. The staff did their best to control them. Even refused serving them alcohol and allowed the gal sitting next to them to move.

The attendant on board was amazing. She should be doing business/first international long haul.

The boarding was cumbersome. The staff was not aligned. They called group 1 but then the agent said no. Then they called group 1 again but still would not board us. Then they called group 2 and they all came up and still hadn’t started boarding. Then someone came from the plane and said why is no one coming? And the agent said bc i thought not yet and she said I said over the walkie talkie to send the passengers down? What was not clear about that? Also, onboard, the crew gave announcements very ironic/authoritative, and in first class they gave us a cheesebox. My expectations based on competition airlines, is a warm meal. A little underwhelming.

I was fully checked in the prior night and i was unchecked and then didn’t have a seat when I boarded. Instead of an aisle seat, I was out in the middle seat of the very last row of the plane.

In overall it was a good experience, the only down point was that the entertainment screen was working properly.

This Japanese airline provides great service and very helpful in assisting their passengers.

Good crew. Boarding delays. Almost two hours wait for the bags in DC.

HORRIBLE, my initial flight was cancelled, they made me pay $200 extra dollars and that got cancelled as well! After 6 cancellations I decided to get a refund because I needed to get home to my babies. Out of $1000+ dollars they offered me only $40 in refund! Totally unacceptable! The flight that they cancelled I was able to fly it on another airline. I had to spend $400 on one way tickets just to get home! I’m still getting the runaround.

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

Information on your arrival and departure airports