Cheap flights from Seattle to Bangkok from $335
This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Seattle to Bangkok departing on 8/17. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
Discover deals from 900+ travel sites with momondo.
Save money when you book flights with momondo
Big names and deals
Big names and deals
Search 100s of travel sites to compare prices.Filter for what you want
Filter for what you want
Free Wi-Fi? Stopover? Instantly customize your results.Trusted and free
Trusted and free
We’re completely free to use - no hidden charges or fees.Price Alerts
Price Alerts
Not ready to book? to track prices.Find the cheapest flights from Seattle to Bangkok
Cheap round-trip flights
Cheap one-way flights
Cheap last minute flights
ANA flights from Seattle to Bangkok Suvarnabhumi Airport
Our best ANA deals on Seattle to Bangkok Suvarnabhumi Airport flight tickets
STARLUX Airlines flights from Seattle to Bangkok Suvarnabhumi Airport
Our best STARLUX Airlines deals on Seattle to Bangkok Suvarnabhumi Airport flight tickets
See travel insights to Bangkok from
How to get the cheapest flight ticket from Seattle to Bangkok Suvarnabhumi Airport
Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip
What is the cheapest month to fly to Bangkok Suvarnabhumi Airport?
The month of February is, on average, the cheapest month to fly to Bangkok Suvarnabhumi Airport from Seattle, with most prices found around $820. The month of March is another great option to travel to Bangkok Suvarnabhumi Airport, with average flight prices from Seattle averaging around $826.
What is the cheapest day to depart on your flight to Bangkok Suvarnabhumi Airport?
The cheapest day to depart on your flight to Bangkok Suvarnabhumi Airport is on a Tuesday when prices can be found for as low as $931. This is often the case because there is less demand to fly during this day of the week. On the other hand, Friday is the most expensive day to depart from Seattle because it is more convenient for both business and leisure travelers. As a result, prices tend to be around $1,111.
What is the cheapest time of day to depart on your flight to Bangkok Suvarnabhumi Airport?
Our most recent data shows that the best time of day to fly to Bangkok Suvarnabhumi Airport is in the morning. Flights from Seattle to Bangkok Suvarnabhumi Airport during this time can be as low as $986. At noon is when there is more demand to fly to Bangkok Suvarnabhumi Airport, so prices are often more expensive at around $1,081 per ticket.
How far in advance should I book a flight to Bangkok Suvarnabhumi Airport?
You are more likely to see cheaper flights to Bangkok Suvarnabhumi Airport from Seattle when booking 13 weeks ahead of your departure date. In general, you can expect to find flights to Bangkok Suvarnabhumi Airport for around $982 when searching 13 weeks out.However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Bangkok Suvarnabhumi Airport from Seattle for as low as $852 on momondo.
What is the cheapest airline that flies from Seattle/Tacoma Intl to Bangkok Suvarnabhumi?
Singapore Airlines, Korean Air, and China Airlines are the most popular carriers operating from Seattle/Tacoma Intl to Bangkok Suvarnabhumi
What airlines fly to Bangkok Suvarnabhumi Airport?
China Airlines, EVA Air and Asiana Airlines are the top three most popular airlines that fly to Bangkok Suvarnabhumi Airport from Seattle according to our data. China Airlines is the first choice among our users, with 32% of people opting to fly with this airline when traveling to Bangkok Suvarnabhumi Airport. Keep in mind that there are 18 different airlines that fly to Bangkok Suvarnabhumi Airport on a routine basis, so you have a few additional options to choose from.
When to book flights from Seattle to Bangkok Suvarnabhumi Airport
Cheap Seattle to Bangkok Suvarnabhumi Airport (SEA to BKK) flight deals and tips
Find info about flight duration, direct flights, and airports for your flight from Seattle to Bangkok Suvarnabhumi Airport
How far is Seattle/Tacoma Intl to Bangkok Suvarnabhumi by plane?
The straight-line distance from Seattle/Tacoma Intl to Bangkok Suvarnabhumi is 7433.8 mi. 18h 05m is a normal flight duration for this route.
When did momondo last update prices for flights from Seattle/Tacoma Intl Airport to Bangkok Suvarnabhumi Airport?
Prices for flights from Seattle/Tacoma Intl Airport to Bangkok Suvarnabhumi Airport are refreshed on a daily basis.
How many operators does momondo search for flights from Seattle/Tacoma Intl Airport to Bangkok Suvarnabhumi Airport?
As of May 2025, there are 18 operators available to choose from for flights from Seattle/Tacoma Intl Airport to Bangkok Suvarnabhumi Airport.
How old do you have to be to fly from Seattle/Tacoma Intl Airport to Bangkok Suvarnabhumi Airport?
The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Seattle/Tacoma Intl Airport to Bangkok Suvarnabhumi Airport.
What documentation or ID do you need to fly to Bangkok Suvarnabhumi Airport?
The travel and health documents required for your trip to Bangkok Suvarnabhumi Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Bangkok Suvarnabhumi Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.
What is the most popular airline from Seattle to Bangkok Suvarnabhumi Airport?
Based on momondo bookings for this flight route, the most popular airline on flight routes from Seattle to Bangkok Suvarnabhumi Airport is China Airlines (21% of total bookings). The next most popular airlines are EVA Air (19%), Asiana Airlines (13%), and ANA (11%).
Best airlines flying from Seattle to Bangkok Suvarnabhumi Airport
Compare and see reviews for airlines that fly from Seattle to Bangkok Suvarnabhumi Airport with momondo
| Airline | Rating | Free Cancellation | Price | ||
|---|---|---|---|---|---|
| PriceFrom $441 | Free Cancellation | Rating 8.0 7,934 reviews | |||
| PriceFrom $623 | Free Cancellation | Rating 8.1 1,292 reviews | |||
| PriceFrom $631 | Free Cancellation | Rating 8.2 442 reviews | |||
| PriceFrom $695 | Free Cancellation | Rating 8.4 1,069 reviews | |||
| PriceFrom $710 | Free Cancellation | Rating 7.2 857 reviews | |||
| PriceFrom $753 | Free Cancellation | Rating 8.3 732 reviews | |||
| PriceFrom $755 | Free Cancellation | Rating 7.1 148 reviews | |||
| PriceFrom $759 | Free Cancellation | Rating 8.3 852 reviews | |||
| PriceFrom $773 | Free Cancellation | Rating 7.3 3,790 reviews | |||
| PriceFrom $786 | Free Cancellation | Rating 7.4 8,696 reviews |
Traveling to a place near Bangkok?
Book flights to Bangkok if you plan to visit one of these locationsWhy use momondo?
Why should I use momondo to find a flight deal from Seattle to Bangkok?
momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights from Seattle to Bangkok. Millions of users trust and use momondo every year so you are in good hands.
Can I find flights from Seattle to Bangkok with flexible booking policies on momondo?
Yes. momondo allows you to filter the results for Seattle to Bangkok flights to just show those with flexible booking policies.
How can momondo help me find flights from Seattle to Bangkok?
Once you have performed a search in the form on the page, momondo provides useful filters and insights. We can show you the cheapest days and times to fly as well as help filter your options to help you make an informed choice when booking flights to Bangkok from Seattle.
I’m not ready to book a flight from Seattle to Bangkok right now. Can momondo alert me if prices change?
Of course. momondo tracks the price of Seattle to Bangkok flights. All you need is a valid email address and we will do the rest; it is that quick and easy.