SIN - SEA

$406 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 11/12. 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 23% 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.

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

Tue, Nov 18 - Thu, Nov 27
Air Canada Logo
8:50 am - 9:31 amSIN-SEA
16h 41m1 stop
Air Canada Logo
10:05 am - 7:00 amSEA-SIN
28h 55m1 stop
$588Air Canada
Find Deal
Tue, Nov 18 - Thu, Nov 27
Air Canada Logo
9:00 pm - 9:31 amSIN-SEA
28h 31m2 stops
Air Canada Logo
8:00 pm - 7:00 amSEA-SIN
19h 00m1 stop
$589Air Canada
Find Deal
Tue, Apr 7 - Mon, Apr 27
Cathay Pacific Logo
8:00 am - 10:10 amSIN-SEA
17h 10m1 stop
Cathay Pacific Logo
11:50 am - 12:50 amSEA-SIN
22h 00m1 stop
$645Cathay Pacific
Find Deal
Wed, Nov 19 - Tue, Nov 25
Philippine Airlines Logo
2:10 pm - 6:40 pmSIN-SEA
20h 30m1 stop
Philippine Airlines Logo
9:30 pm - 9:35 amSEA-SIN
20h 05m1 stop
$646Philippine Airlines
Find Deal
Mon, Apr 6 - Mon, Apr 27
Cathay Pacific Logo
1:50 am - 10:10 amSIN-SEA
23h 20m1 stop
Cathay Pacific Logo
11:50 am - 5:30 amSEA-SIN
26h 40m1 stop
$692Cathay Pacific
Find Deal
Mon, Dec 22 - Mon, Dec 29
China Airlines Logo
2:00 am - 6:10 pmSIN-SEA
32h 10m1 stop
China Airlines Logo
12:10 am - 1:05 pmSEA-SIN
20h 55m1 stop
$698China Airlines
Find Deal
Wed, Nov 19 - Sun, Nov 23
Philippine Airlines Logo
10:35 am - 6:40 pmSIN-SEA
24h 05m1 stop
Philippine Airlines Logo
9:30 pm - 7:10 pmSEA-SIN
29h 40m1 stop
$702Philippine Airlines
Find Deal
Mon, Dec 22 - Tue, Dec 30
China Airlines Logo
2:25 pm - 6:10 pmSIN-SEA
19h 45m1 stop
China Airlines Logo
12:10 am - 12:40 amSEA-SIN
32h 30m1 stop
$742China Airlines
Find Deal
Mon, Nov 17 - Sun, Nov 23
United Airlines Logo
10:10 am - 1:38 pmSIN-SEA
19h 28m1 stop
United Airlines Logo
3:37 pm - 8:00 amSEA-SIN
24h 23m1 stop
$769United Airlines
Find Deal
Fri, Nov 14 - Sun, Nov 23
United Airlines Logo
10:10 am - 4:15 pmSIN-SEA
22h 05m1 stop
United Airlines Logo
7:28 pm - 8:00 amSEA-SIN
20h 32m1 stop
$770United Airlines
Find Deal

Everything you should know

Our travelers' advice
AI-generated summary based on content written by travel experts
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
Air Canada
Cheapest • from $588 (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 15% compared to booking last minute.
Insights
Insights
Insights
Insights
When to travel
September
Cheapest • 7% 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
Cheapest round-trip
$588
Typical prices: $806-$1,162
Air Canada
Tue 11/18Thu 11/27
SIN - SEA • 1 stop
Cheapest non-stop
$822
Typical prices: $798-$1,022
Singapore Airlines
Sat 3/21Tue 3/31
SIN - SEA • Non-stop
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!
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.

How much is a round-trip flight from Singapore to Seattle?

This analysis is based on the cheapest round-trip price found on KAYAK in the last 12 months by searching for a flight from Singapore to Seattle departing in November.

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 Sundays 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 Mondays.

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 September, where tickets cost $828 (return) on average. On the other hand, the most expensive months are June and January, where the average cost of round-trip tickets is $996 and $947 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 $1,077 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 15% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 6 weeks before departure.

Expert advice

Expert advice for your flight from Singapore to Seattle

 
Snippets provided in this section are AI-generated based on a summarization of KAYAK-commissioned articles. The articles are presented as-is, for general informational purposes only, and may not be up-to-date. The opinions contained in the articles are original to the author and reflect their authentic experience, which may vary significantly from the experience of others.
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.

Read more about SINby Jessica Macdonald
SEA

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

Read more about SEAby Harriet Baskas
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$406
Best time to beat the crowds with an average 3% drop in price.
Most popular time to fly with an average 11% 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 $406 for a one-way ticket and $588 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 $864 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 $471 or less one-way and $946 or less round-trip.

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 219 reviews
9.2Crew
8.8Entertainment
8.7Food
8.9Comfort
8.9Boarding
Airline reviews

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.

10.0 ExcellentBrian, Oct 2025SIN - TPE
Read more STARLUX Airlines reviews

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.

The airplane so clean and they have a nice crew

it they come out with resent movie and good food

The crew could have been kinder and less pushy. The premium economy seats don't have enough cushion. The seats are to hard and the flight became painful and uncomfortable after an hour of flying.

Aircraft is new and toilets are spacious, but toilets are quite filthy. They should clean more often. They have a long list of drink offer but are actually not available during meal. They said they’ll come back with them and you don’t get them until after dinner which means you eat your meals without any drinks if you were to get something that they don’t have on the cart. They are strict about removing headphones during take off and landing which is new to us since the movies did not get turned off. Instead, we we’re forced to watch their commercials during that time. We probably would fly with them again but not with the cost we spent. For the record, I work in tourism and travel a lot for inspections.

Our transit in Taipei was disappointing. The ground crew could not tell us where the lounge was located, so we wasted 15 minutes trying to find it. The airline has a great review, but our experience says otherwise.

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

Very good service and food. Crew was professional and considerate. Cabin and restrooms were kept clean

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.

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.

Sub sandwhich for a snack through mid flight and giving a bottle water was a good idea

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.

Good service and food. For buying items on flight should be preordered as they don’t keep much stock on board.

Excelent service and plenty of food and drinks during the flight. Flight crew very attentive to our needs. Leg room between rows are very disappointing.

Short flight but an "eager to help" crew made the journey more enjoyable!

Not enough veg food available for passengers. I actually did not get the veg food and was told it was over, and I starved the entire flight duration.

Flight was delayed only slightly before takeoff due to traffic control. However, the flight arrived early to ORD. Good flight. United has been very reliable for me.

Flight left on time. Boarding was easy. Arrived to EWR 30 mins early. Luggage was deplaned in good time. Overall a very good experience.

Flight from Rome to SFO was excellent compared To our flight to Europe from SFO. The food was much tastier. You can see how UNITED is skimping, though. Instead of getting something mid flight you had to ask for it. It was not automatically served. There was a cookie at the end of the arrival meal, for example that tasted like it just came out of a box. They used to serve a little container of nuts, now … a tiny container of nuts, mixed with pretzels. This was business class that you really have to pay for! But this is minor complaints compared to the overall. My major complaint is the position of the even numbered seats by the windows. You have to turn around to see your window & the positioning as some other controls are harder to get at. This is compared to the odd number seat that are perfectly aligned.

The person I bought the ticket for didn’t make the flight.

Lately I like the planes have been exceptionally filthy. There’s lines of dust and dirt all across the ceiling in the vents, and the cracks in between the seats are literally full of food. It’s definitely not the quality of service that I was used to with United. I’m also very disappointed with the Wi-Fi! All I wanna do is knock out a few work jobs while I’m trapped in my seat And it spools so bad. They did provide me with a refund, but the process of getting that refund is so complicated. It’s unfortunate.

Another delayed flight. When the delays exceed the duration of the flight, it’s a problem.

Excellent flight. Smooth, efficient boarding. Quick flight. Arrived early at STL.

After boarding the plane in Chicago, the passengers were told that there was a technical problem with the plane. Passengers remained on the plane as they tried to fix the problem. After what was probably an hour passengers were told that there was a need to change planes as the problem was not solved. Passengers disembarked and boarded another plane. After taxing to the runway and waiting for takeoff, passengers were told that owing to the thunderstorm the flight was unable to take off but would try and reroute. After some time passengers were told there wasn't enough fuel for the new route and the plane had to return to the gate for additional fuel. after another log delay the flight got underway. On the plane there was food, drinks, ice or entertainment. We were a glass of water, which appeared rationed. Flight arrived about 5 hours late. The pilot was fantastic and communicated with the passengers throughout the ordeal.

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

Information on your arrival and departure airports

Not what you’re looking for? Find thousands of other hotels, flights, car rentals and package deals with KAYAK.