SIN - SEA

$419 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 1/28. 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
Travelers love KAYAK
41.299.237 searches in the past 7 days on KAYAK

Save 24% or moreCompare multiple travel sites with one search.

Track pricesNot ready to book? Create a price alert for when prices drop.

Bundle and saveSave money when you bundle your flight + hotel.

Filter your dealsChoose cabin class, free Wi-Fi and more.

Everything you should know

Cheapest round-trip
$746
Overall average: $850
China Airlines
Mon 2/9Sun 2/15
SIN - SEA • 1 stop
Cheapest non-stop
$867
Typical prices: $833-$1,071
Singapore Airlines
Thu 4/2Tue 4/7
SIN - SEA • Non-stop
Our travelers' advice
AI-powered summary based on content written by travel experts. AI can make mistakes.
Use the Mobile Passport app for faster customs at SEA.
Check your terminal at SIN for possible shuttle transfer.
Expert advice
Expert advice
Expert advice
Expert advice
Top airlines
China Airlines
Cheapest • from $746 (round-trip)
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 travelers who book at least 2 weeks in advance save around 19% 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
Nonstop 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 100s of sites at once to find you the best travel deals.
We hope you love your trip to Seattle!
Flight Deals
Booking Insights
Expert advice
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 round-trip 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 round-trip flight deals from Singapore to Seattle

Mon, Feb 9 - Sun, Feb 15
China Airlines Logo
2:25 pm - 6:10 pm
SIN
-
SEA
19h 45m1 stop
China Airlines Logo
12:10 am - 1:05 pm
SEA
-
SIN
20h 55m1 stop
$746China Airlines
Mon, Feb 9 - Sun, Feb 15
China Airlines Logo
2:25 pm - 6:10 pm
SIN
-
SEA
19h 45m1 stop
China Airlines Logo
12:10 am - 1:05 pm
SEA
-
SIN
20h 55m1 stop
$750China Airlines
Thu, Jan 29 - Sun, Feb 22
China Airlines Logo
2:25 pm - 6:10 pm
SIN
-
SEA
19h 45m1 stop
China Airlines Logo
12:10 am - 1:05 pm
SEA
-
SIN
20h 55m1 stop
$756China Airlines
Fri, Feb 6 - Thu, Feb 19
Korean Air Logo
10:30 pm - 9:00 am
SIN
-
SEA
26h 30m1 stop
Korean Air Logo
11:00 am - 5:00 am
SEA
-
SIN
26h 00m1 stop
$766Korean Air
Tue, Mar 3 - Tue, May 5
Korean Air Logo
1:35 am - 9:00 am
SIN
-
SEA
23h 25m1 stop
Korean Air Logo
12:50 pm - 11:40 pm
SEA
-
SIN
19h 50m1 stop
$769Korean Air
Sat, Mar 21 - Mon, Mar 30
China Airlines Logo
2:25 pm - 7:10 pm
SIN
-
SEA
19h 45m1 stop
China Airlines Logo
1:15 am - 12:35 pm
SEA
-
SIN
20h 20m1 stop
$771China Airlines
Thu, Apr 2 - Tue, Apr 7
Korean Air Logo
7:30 am - 10:40 am
SIN
-
SEA
18h 10m1 stop
Korean Air Logo
12:50 pm - 11:40 pm
SEA
-
SIN
19h 50m1 stop
$774Korean Air
Sat, Mar 21 - Mon, Mar 30
China Airlines Logo
2:25 pm - 7:10 pm
SIN
-
SEA
19h 45m1 stop
China Airlines Logo
1:15 am - 12:35 pm
SEA
-
SIN
20h 20m1 stop
$775China Airlines
Mon, Feb 9 - Fri, Feb 27
Korean Air Logo
1:35 am - 9:00 am
SIN
-
SEA
23h 25m1 stop
Korean Air Logo
11:00 am - 12:10 am
SEA
-
SIN
21h 10m1 stop
$776Korean Air
Mon, Jan 26 - Sat, Feb 28
United Airlines Logo
10:10 am - 9:12 pm
SIN
-
SEA
27h 02m1 stop
United Airlines Logo
9:19 am - 8:00 am
SEA
-
SIN
30h 41m1 stop
$779United 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’s the cheapest day of the week to fly from Singapore to Seattle?

The average price of all round-trip flights from Singapore to Seattle clicked on KAYAK for each day over the last 12 months.

When flying from Singapore to Seattle, you should consider leaving on a Friday and avoid Thursdays if you are looking for the best rates. For your return to Singapore, you’ll find the best rates on Tuesdays and the most expensive ones on Wednesdays.

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 $781 (return) on average. On the other hand, the most expensive months are January and December, where the average cost of round-trip tickets is $948 and $905 respectively.

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

The average round-trip price for all non-stop flights, flights with one layover, and flights with two layovers for the route found by users searching on KAYAK in the last 2 weeks.

Yes, flying with a layover may cost you more time, but you can also save money on the route, with a 1 stop layover the cheapest option at $854 on average.

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 19% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 12 weeks before departure.

Expert advice

Expert advice for your flight from Singapore to Seattle

 
AI-powered summary based on content written by travel experts. AI can make mistakes.
KAYAK teamed up with top travel experts to share the best tips for your journey.
Airports
SIN

For a smooth departure, check your terminal carefully at SIN, especially if flying from Terminal 4, as it requires a shuttle bus transfer.

SEA

Upon arrival at SEA, use the Mobile Passport Control app for expedited customs processing if you don't have Global Entry.

Our travel experts
Jessica Macdonald

Jessica Macdonald

Expert on SIN

Jessica Macdonald

Jessica Macdonald

Currently based in Scotland after living in South Africa and the United States, Jessica has been writing travel and aviation content for more than 10 years. She regularly contributes to Travel + Leisure and TripSavvy, and has had work published by Condé Nast Traveller and The Independent. She has traveled to more than 50 countries across six continents.

Read more
Harriet Baskas

Harriet Baskas

Expert on SEA

Harriet Baskas

Harriet Baskas

Harriet is an award-winning journalist who is happiest in an airport or an unusual museum. Her stories about airports, air travel, and the business of travel have appeared on NBC News, CNBC, USA TODAY, The Points Guy and other outlets. She is the creator of the StuckatTheAirport.com blog and the author of nine books. When not out on the road or exploring the latest airport amenities, she’s home in Seattle getting ready for the next adventure.

Read more

Good to know

Low seasonOctober
Cheapest flight$419
Best time to beat the crowds with an average 11% drop in price.
Most popular time to fly with an average 3% increase in price.
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 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 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 $419 for a one-way ticket and $746 for a round-trip.

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

    Yes, you'll most likely have to show a valid passport before boarding the plane in Singapore and on arrival in Seattle.

  • 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?

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

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

    You can catch a nonstop 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 $836 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 $850 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 round-trip ticket. You could then fly to Seattle with an airline and back to Singapore with another airline. Booking your flights between Singapore and SEA 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 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 $794 or less one-way.

Prefer to fly direct from Singapore to Seattle?

 
Direct data is based off flight results for the next 60 days. Find direct flights from all airlines flying direct 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 4 airlines serving 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 250 reviews
9.1Crew
8.8Comfort
8.9Boarding
8.6Food
8.8Entertainment
Airline reviews

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.

8.0 ExcellentAnonymous, Dec 2025
TPE - ONT
Read more STARLUX Airlines reviews

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👍🏼

Loved the boarding process. All airlines should board from the back to the front. Very efficient. Food was excellent, crew were great, seats were spacious and comfortable and the entertainment screen was the best I have seen.

Flight cancelled due to inclement weather yet rival airline EVA Air with the same route departed 2 hours later and landed safely while our flight was cancelled and rescheduled for 36 hours later.

The staff in air and on land went above and beyond! I would definately recommend and we will fly Starlux again!

I need Starlux to respond to my complaint and issues for my flight.

Someon vomit during boarding. My seat was next to the vomit. I asked crew member to switch seat, but they said it was a full flight. I had my baby with me. My baby got sick after the flight. He was in the hospital for 2 days.

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

EVA airlines was excellent: on time or early, safe, courteous crew. Highly recommended.

EVA! What is going on with your food!?!? Pre pandemic I used to go to Taiwan at least twice a year and always flew EVA — the food was consistently tasty for airplane food. Post pandemic, it’s not great at all. Step it up!

Flight Attendants could have been nicer and food portions could be bigger.

Excellent service from check in to boarding the crew is so pleasant to asked

I have never heard of EVA air before but I am so happy my wife and I were able to flight on their planes twice. Everything on these flights just felt better than their competitors. As someone with longer legs any bit of extra leg spaces is appreciated. The different options for food and drinks were also a plus. They were extra careful to make sure my wife's eating restrictions were taken care for. They had a before take off and landing announcements on the built in tablets for each seat and it gave out information that was very helpful. Such as what and how to declare your items in the specific country you landed in, any odd items that may be illegal to bring it (and even the reasoning why) and any other information you might need to make your post flight experience better. Oh and the seats were more comfortable, had more ability to lean and the headrest was much better for flight sleeping. The only downside was there were "forced" ads on the tablet at take off for maybe 5-10 minutes but honestly, this flight was the cheapest option and had all the benefits listed above that is such an easy trade off. Im keeping an eye out for EVA air going forward.

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

I was in a middle seat where I felt a bit too cramped otherwise the trip was good

The business class seats were very uncomfortable. When in lie flat position my legs were very restricted.

The staff on the plane were attentive and friendly. The frustration with the cabin crew was that we were served second to special diet people. And, we were in economy section. The boarding staff was mediocre. Got scolded for requesting to sit with spouse on 14 hours long flight home. Was told they cannot break up families for us. Didn’t understand how we were denied sitting together as we are husband and wife. After many words of exchange, we were accommodated. Cleaning crew did a horrible job! Bathrooms were unsanitary or dirty from beginning of flight! Didn’t expect sparkling as its economy, but did except decent.

Food from Surabaya was below average but from Singapore is much better

The usual excellent experience with Singapore Airlines. The airplane was on time and actually early to Haneda Airport. The onboarding experience was pleasant with no delays, perhaps owing to the fact that the flight was not full. Nevertheless, the air crew were their usual outstanding standards in serving the passengers.

Pushed back only to get deplaned due to a tire damaged by ground crew. They did at least go pretty fast. The bathrooms should be banned under the Geneva convention. No room to even sit straight on the toilet. The under-seat entertainment units block what little leg room there is.

Essy to get on. The hostess gave very little pop, the plane was late getting in, and we are still waiting for our bags. This sucks. :/

It was good, although we could not get our preferred seats, we did enjoy the whole experience from Costa Rica. I still don't understand why our luggage is not the first to come out at the band.

Great flight. On time boarding. Smooth flight and on time arrival at EWR. The flight crew was marvelous and there was a great selection of movies on the entertainment system. Our bags were at the carousel before we got there. Another excellent flight from United.

everything was pretty good. Houston airport is awful. Unnecessarily inefficient; people working there are rude. Badly run

United airlines has the best customer experience from booking to arrival. I always fly United airlines. The mileage program is excellent

They did the one thing that really matters - got to Chicago early.

I liked the snacks and the flight attendants were friendly.

The flight was delayed for 1:30 hours for maintenance issues. They should give more information about connecting flights. For a Business Cabin the Crew was mediocre.

Very turbulent trip made it pretty bearable, plus the lack of refreshments served and the lack of any air conditioning before takeoff which took an hour or more.

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

Information on your arrival and departure airports