Cheap Flights from Seattle to Thailand from 670 €

Looking for a cheap last-minute deal or the best return flight from Seattle to Thailand? If you want to travel next month, return fares start from 719 €. Find the lowest prices on one-way and return flight tickets right here.

Bangkok.670 € per passenger.Departing Wed, 20 Jan, returning Tue, 26 Jan.Return flight with Singapore Airlines.Outbound indirect flight with Singapore Airlines, departs from Seattle / Tacoma International on Wed, 20 Jan, arriving in Bangkok Suvarnabhumi.Inbound indirect flight with Singapore Airlines, departs from Bangkok Suvarnabhumi on Tue, 26 Jan, arriving in Seattle / Tacoma International.Price includes taxes and charges.From 670 €, select.

Chiang Mai.742 € per passenger.Departing Thu, 29 Oct, returning Wed, 18 Nov.Return flight with Korean Air.Outbound indirect flight with Korean Air, departs from Seattle / Tacoma International on Thu, 29 Oct, arriving in Chiang Mai.Inbound indirect flight with Korean Air, departs from Chiang Mai on Wed, 18 Nov, arriving in Seattle / Tacoma International.Price includes taxes and charges.From 742 €, select.

Phuket.761 € per passenger.Departing Tue, 16 Feb, returning Tue, 16 Mar.Return flight with Singapore Airlines.Outbound indirect flight with Singapore Airlines, departs from Seattle / Tacoma International on Tue, 16 Feb, arriving in Phuket.Inbound indirect flight with Singapore Airlines, departs from Phuket on Tue, 16 Mar, arriving in Seattle / Tacoma International.Price includes taxes and charges.From 761 €, select.

Krabi.836 € per passenger.Departing Sat, 29 Aug, returning Fri, 4 Sep.Return flight with Hainan Airlines and Thai VietJet Air.Outbound indirect flight with Hainan Airlines, departs from Seattle / Tacoma International on Sat, 29 Aug, arriving in Krabi.Inbound indirect flight with Thai VietJet Air, departs from Krabi on Fri, 4 Sep, arriving in Seattle / Tacoma International.Price includes taxes and charges.From 836 €, select.

Udon Thani.886 € per passenger.Departing Sat, 7 Nov, returning Mon, 16 Nov.Return flight with Asiana Airlines and Thai VietJet Air.Outbound indirect flight with Asiana Airlines, departs from Seattle / Tacoma International on Sat, 7 Nov, arriving in Udon Thani.Inbound indirect flight with Thai VietJet Air, departs from Udon Thani on Mon, 16 Nov, arriving in Seattle / Tacoma International.Price includes taxes and charges.From 886 €, select.

Hat Yai (Songkhla).892 € per passenger.Departing Tue, 6 Oct, returning Sun, 18 Oct.Return flight with Korean Air and Thai AirAsia.Outbound indirect flight with Korean Air, departs from Seattle / Tacoma International on Tue, 6 Oct, arriving in Hat Yai.Inbound indirect flight with Thai AirAsia, departs from Hat Yai on Sun, 18 Oct, arriving in Seattle / Tacoma International.Price includes taxes and charges.From 892 €, select.

Chiang Rai.907 € per passenger.Departing Sat, 12 Sep, returning Sat, 19 Sep.Return flight with Asiana Airlines and Thai VietJet Air.Outbound indirect flight with Asiana Airlines, departs from Seattle / Tacoma International on Sat, 12 Sep, arriving in Chiang Rai.Inbound indirect flight with Thai VietJet Air, departs from Chiang Rai on Sat, 19 Sep, arriving in Seattle / Tacoma International.Price includes taxes and charges.From 907 €, select.

Koh Samui.952 € per passenger.Departing Fri, 12 Feb, returning Mon, 22 Feb.Return flight with Singapore Airlines.Outbound indirect flight with Singapore Airlines, departs from Seattle / Tacoma International on Fri, 12 Feb, arriving in Samui International.Inbound indirect flight with Singapore Airlines, departs from Samui International on Mon, 22 Feb, arriving in Seattle / Tacoma International.Price includes taxes and charges.From 952 €, select.

Rayong.993 € per passenger.Departing Tue, 29 Sep, returning Tue, 13 Oct.Return flight with Frontier Airlines and Bangkok Airways.Outbound indirect flight with Frontier Airlines, departs from Seattle / Tacoma International on Tue, 29 Sep, arriving in Pattaya (Chonburi).Inbound indirect flight with Bangkok Airways, departs from Pattaya (Chonburi) on Tue, 13 Oct, arriving in Seattle / Tacoma International.Price includes taxes and charges.From 993 €, select.

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Flights from Seattle to Thailand FAQs

What is the cheapest flight to Thailand from Seattle?

The cheapest flight from Seattle to Thailand costs 670 €.

Explore the different prices of flights from Seattle to Thailand and find the best option for you.

When is it the cheapest time to fly from Seattle to Thailand?

The cheapest month to fly from Seattle to Thailand is January. See if any of these flights in January suit you.

What is the cheapest Seattle to Thailand flight route?

We've taken a look at the year ahead using our flights calendar. The cheapest flight route from Seattle to Thailand is Seattle to Bangkok Suvarnabhumi. You can buy a ticket to fly this route from 670 €.

Take a look at Seattle to Bangkok Suvarnabhumi flights.

What is the cheapest airline that flies to Thailand from Seattle?

Looking at the year ahead, the cheapest airline flying to Thailand from Seattle is Singapore Airlines.

Explore flight ticket options today.

Cheapest flights to Thailand from Seattle

How to find cheap flights from Seattle to Thailand

Book a return flight from Seattle to Thailand from 670 €, the cheapest price currently available.
That fare gets you from Seattle to Bangkok Suvarnabhumi in Bangkok.
343 € is the lowest price we've found for a one-way trip.
Happy to go wherever the cheap flights are? Enter 'Thailand' in the 'To' field to find the lowest fares across different cities.
There's no shortage of ways to arrive in Thailand, with around five airports to choose from.
To compare a wider range of prices, select 'Add nearby airports' to include all airports close to where you're departing from and heading to.
Early booking can pay off. Fares are more likely to go up as your trip date gets closer, not drop.
Never miss a fare change. Download the Skyscanner app, set up a Price Alert, and we'll let you know when prices rise or drop.

Best time to fly from Seattle to Thailand

January is usually the cheapest month to catch a flight from Seattle to Thailand.
In general, travelling midweek is a simple way to save. Tuesdays and Wednesdays often mean cheaper fares.
April, October and December are the busiest months to travel to Thailand. April comes out on top, making it the perfect time to visit if you like things to feel a little more lively.
For a more laid-back experience, March, June and September are worth considering. March is the quietest month.

Popular places to visit in Thailand

Bangkok

A popular destination for Seattle to Thailand flights, Bangkok takes the top spot on the must-visit list. From The Grand Palace and The Temple of the Emerald Buddha to Songkran Festival Silom, the must-sees stack up quickly.
Bangkok's major airports are Bangkok Suvarnabhumi Airport (BKK) and Don Mueang Airport (DMK). You'll discover some competitive flight deals between the two.
When you're ready to choose your base, browse the range of hotels in Bangkok.

Phuket

Sunrise Beach, Paradise Beach and Phuket Elephant Nature Reserve offer a solid introduction to the highlights in this Phuket Province city.
The majority of flights arrive through Phuket Airport (HKT), the city's main airport.
After locking in your airfare, you can begin searching for the right stay among the hotels in Phuket.

Chiang Mai

Swing by popular sights like Songkran Festival Chiang Mai, Doi Suthep and Doi Suthep-Pui National Park while you're in this part of Chiang Mai Province.
Chiang Mai Airport (CNX) is the main airport for flights into the city.
Whether you're on a tight budget or ready to splurge, hotels in Chiang Mai offer options for every kind of trip.

Visiting Thailand for the first time? Here's what you need to know

Know the entry rules before you go. Rules can change depending on your reason for travel and your passport. Always check with official sources like your airline, travel agent or the local embassy.
The local currency is the Thai baht (THB).
Thailand has a population of about 72 million. The capital city is Bangkok.
Time is consistent across this destination, with just one standard time zone operating on UTC+7.
For a warmer trip to Thailand, consider travelling in April.
Plan your visit around December if you'd rather be there when it's cooler.
December is typically the driest month, while July is the wettest.
Songkran New Year celebrations, the Loy Krathong festival of lights and the Chiang Mai Flower Festival are among the biggest events here. Think about booking your Seattle to Thailand flight around moments like these for a travel experience beyond the ordinary.

Complete your trip with hotels and a car rental

A cheap flight from Seattle to Thailand gets you there. What comes next is planning the stay. Discover the best prices and exclusive rates for hotels in Thailand. For the freedom to explore at your own pace, also browse the range of car rental options in Thailand.

Thailand hotels and car hire

Did you know we can help you plan the rest of your trip from Seattle to Thailand? Get exclusive deals and great rates for hotels and car hire in Thailand.