Cheap Flights from Singapore to Seattle from $454

Frequently Asked Questions

• What are the cheapest flights from Singapore to Seattle (SIN-SEA)?

  Based on Trip.com data, Hainan Airlines offers one-way fares as low as $454 on Cheapest nonstop routes (e.g. SIN to SEA on Wed, May 13), while Hainan Airlines offers Cheapest nonstop round-trips from $715 departing on Wed, Apr 22 and returning on Sat, Apr 25.

• Which airlines offer direct flights from Singapore to Seattle?

  At the moment, you can catch a nonstop flight from Singapore to Seattle with the following airlines, including: Singapore Airlines EVA Air Selected airlines are based on historical data collected from flight bookings users made on Trip.com within the last 90 days.

• How long does it take to fly from Singapore (SIN) to Seattle (SEA) and what is the distance?

  It takes around 14 hours 10 minutes to fly from Singapore (SIN) to Seattle (SEA).

• When is the best time to book flights from Singapore to Seattle?

  By analyzing data from all airlines on the Trip.com flight calendar, it looks like the best time to book a flight from Singapore to Seattle is around 40 days (6 weeks) in advance, and the best time to fly is usually on Tuesday, Wednesday, and Saturday. Tuesday typically offers the cheapest flights for departure, while Saturday offers the best return deals.

• How many flights are there per week from Singapore to Seattle?

  Based on Trip.com data in the past 4 weeks, there is 5 flight per week flying from Singapore to Seattle. You can check the weekly schedule for popular airlines on this route below: Singapore Airlines: -/M/-/W/T/F/S -- SQ028 (09:17)

• How can I find the best deals on flights from Singapore to Seattle?

  To find best deals on flights from Singapore to Seattle, you can use various tools on Trip.com:
  · Be flexible with your travel dates to get the cheapest flight deal. Now the cheapest flight deal is on Wed, May 13, with one-way flights priced at just $454.
  · Compare airlines strategically. Budget carriers often provide the lowest base fares, while we found the most affordable airline currently operating on this route is Singapore Airlines.
  · Set up price alerts to easily monitor ticket prices without having to check every day.
  · Check Trip.com flight deals and promo codes frequently.
  · Avoid peak season unless you book very early. It seems the peak season for Seattle travel is around July.
  · Get exclusive promo codes for Trip.com app users.

• When are flight tickets from Singapore (SIN) to Seattle (SEA) the cheapest?

  The cheapest months to fly from Singapore to Seattle is November, when demand for travel is lower.

• Which upcoming date is cheapest to fly from Singapore to Seattle on?

  After crunching the numbers on our March flight calendar, it's currently cheapest to fly from Singapore to Seattle on March 25, 2026 with Hainan Airlines, with prices starting at $436.

• Which airports can I fly to for Seattle from Singapore?

  You can land at any one of the following hubs in Seattle, with Singapore Changi Airport to Seattle-Tacoma International Airport (SIN-SEA) is by far the most common option on this route: Seattle-Tacoma International Airport (SEA) King County (Boeing Field) International Airport (BFI) Kenmore Air - Lake Union (LKE).

• Is there any time difference between Singapore and Seattle?

  The time difference between Seattle and Singapore is 16h.

• How do I change or cancel my ticket from Singapore to Seattle?

  Tickets can only be changed or canceled if permitted by airline policy. To submit a change or cancellation request, go to the flight bookings page, select the option to change or cancel your booking, choose the relevant passengers and segment, and submit a request. Please note that additional charges may apply according to the airline ticket policy. However, if the flight has been rescheduled and you would like to change or cancel your ticket, you can submit an involuntary cancellation request. For more details about change and cancellation policies, please check the customer support pages.