Cheap Flights from Seattle / Tacoma International Airport to Bangkok from 614 € Return

Flight deals from Seattle / Tacoma International Airport to Bangkok

Looking for a cheap last-minute deal or the best return flight from Seattle / Tacoma International Airport to Bangkok? If you want to travel next month, return fares start from 940 €. Find the lowest prices on one-way and return tickets right here.

Bangkok.614 € per passenger.Departing Thu, 10 Sep, returning Tue, 3 Nov.Return flight with Singapore Airlines.Outbound indirect flight with Singapore Airlines, departs from Seattle / Tacoma International on Thu, 10 Sep, arriving in Bangkok Suvarnabhumi.Inbound indirect flight with Singapore Airlines, departs from Bangkok Suvarnabhumi on Tue, 3 Nov, arriving in Seattle / Tacoma International.Price includes taxes and charges.From 614 €, select.

Show more deals

Flying from Seattle / Tacoma International Airport to Bangkok

Arm yourself with these facts on the fly.

Cheapest flight found	614 €
Cheapest month to fly	September

How to find cheap flights from Seattle / Tacoma International Airport to Bangkok

We've compared the best online travel agents and flight providers on the internet to find the cheapest plane tickets from Seattle / Tacoma International Airport to Bangkok. Other savvy travellers recently found return flights from 614 € and one-way tickets from 355 €. Ready to join them? Here are a few tips to help you do it the smart way.

Fly in September

The cheapest time to fly from Seattle / Tacoma International Airport to Bangkok is currently September.

Flex your dates for the best rates

If you’re flexible on your departure dates, you can use Skyscanner's whole month tool to find the cheapest day of the year to fly from Seattle / Tacoma International Airport to anywhere you choose in Bangkok.

Watch as fares rise and fall

With Price Alerts, we'll let you know when flight prices from Seattle / Tacoma International Airport to your chosen airport in Bangkok go up or down so you can book when the time is just right.

Relax – these are fee-free flight tickets

With us, there are no added fees – the Bangkok Airport to Bangkok flight price you see when you search with us is what you pay to the provider.

Frequently asked questions

What is the average price of a flight from Seattle / Tacoma International Airport to Bangkok?

We looked at all of the upcoming return flights from Seattle / Tacoma International Airport to Bangkok we could find over the next 12 months. It looks like 614 € is the best price. This is good, compared to the average Bangkok ticket price of 614 €.

What is the cheapest month to fly from Seattle / Tacoma International Airport to Bangkok?

The cheapest month to fly from Seattle / Tacoma International Airport to Bangkok is currently September.

Which upcoming date is cheapest to fly from Seattle / Tacoma International Airport to Bangkok on?

After crunching the numbers on our flight calendar, we found that it is currently cheapest to fly from Seattle / Tacoma International Airport to Bangkok on Thursday, 10 September 2026.

If I'm flying from Seattle / Tacoma International Airport, where in Bangkok is cheapest to fly into?

If you're flying from Seattle / Tacoma International, the cheapest city in Bangkok to fly into is Bangkok. The cheapest airport serving Bangkok at the moment is Bangkok Suvarnabhumi.