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Thailand (ภาษาไทย)
ภาษาไทย

฿13,358+ Cheap flights to Seattle

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 25/2. Fares are subject to change and may not be available on all flights or dates of travel.
— SEA
20 Dec — 27 Dec1
1 adult
1 adult, Economy, 0 bags

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Cheapest flights to Seattle
Explore the most affordable flight options available to Seattle. Find the lowest fares based on data from user searches, with prices last updated on 20 November 2025.

Wed 24/1213:20BKK - SEA
1 stop20h 20mPhilippine Airlines
Fri 16/121:30SEA - BKK
1 stop34h 30mPhilippine Airlines
Deal found 20/11฿21,107
Wed 24/1211:20BKK - SEA
1 stop21h 50mEVA Air
Thu 15/100:10SEA - BKK
1 stop32h 30mEVA Air
Deal found 20/11฿24,868
Mon 22/1202:35BKK - SEA
1 stop30h 35mChina Airlines
Sun 28/1200:10SEA - BKK
1 stop25h 35mChina Airlines
Deal found 19/11฿25,225
Tue 23/1202:05BKK - SEA
1 stop21h 55mKorean Air
Fri 16/111:00SEA - BKK
1 stop35h 25mKorean Air
Deal found 20/11฿26,198
Wed 24/1219:10BKK - SEA
2 stops27h 55mMultiple Airlines
Fri 16/108:45SEA - BKK
1 stop32h 40mMultiple Airlines
Deal found 20/11฿26,262
Thu 20/1100:55BKK - SEA
1 stop23h 05mMultiple Airlines
Thu 27/1100:10SEA - BKK
1 stop30h 50mMultiple Airlines
Deal found 20/11฿28,111
Wed 24/1223:55BKK - SEA
2 stops37h 51mแอร์แคนาดา
Fri 16/105:50SEA - BKK
2 stops25h 40mแอร์แคนาดา
Deal found 20/11฿28,305
Tue 23/1217:15BKK - SEA
1 stop15h 15mMultiple Airlines
Mon 29/1205:00SEA - BKK
2 stops27h 40mMultiple Airlines
Deal found 19/11฿28,467
Thu 20/1103:10DMK - SEA
2 stops30h 30mMultiple Airlines
Fri 28/1121:30SEA - DMK
1 stop23h 10mMultiple Airlines
Deal found 20/11฿33,331
Mon 22/1202:30DMK - SEA
1 stop26h 25mMultiple Airlines
Sun 28/1200:10SEA - DMK
1 stop24h 20mMultiple Airlines
Deal found 19/11฿37,059
Wed 10/1221:45DMK - SEA
1 stop25h 20mMultiple Airlines
Sun 21/1221:35SEA - DMK
2 stops41h 35mMultiple Airlines
Deal found 20/11฿61,312
Wed 19/1102:00DMK - SEA
2 stops30h 30mMultiple Airlines
Sun 30/1100:10SEA - DMK
1 stop30h 20mMultiple Airlines
Deal found 18/11฿195,412

Flights to Seattle in 2025

Find the latest flights to Seattle in 2025, with up-to-date prices and availability. In the last 7 days, Cheapflights users made a total of 17,341 searches and data was last updated on 20 November 2025.

Return from

฿19,389

One-way from

฿13,164

Popular in

July

Cheapest in

November

Average price

฿26,133
Philippine Airlines
  • Philippine Airlines
  • 2/2-1/3
  • 2 total stops
  • 63h 10m total
  • Bangkok to Seattle
Search Deals
Philippine Airlines
  • Philippine Airlines
  • 11/3
  • 1 total stop
  • 33h 50m total
  • Bangkok to Seattle
Search Deals
Highest demand for flights based on searches. 9% potential increase in price (฿3,109 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease (฿585 potential savings vs. average return price).
Search Deals
Average for return flights in November 2025
Search Deals

Cheapflights Fare Finder

 
Locate flights to Seattle that fit your budget, with regularly updated fares and availability. In the last 7 days, Cheapflights users made a total of 17,341 searches and data was last updated on 20 November 2025.
Use the filters below to find and compare flights to Seattle that are best for you.

Fly from

Bangkok

Route

Depart

Return

Price

BangkokSeattle

BKK - SEA

BKKSEA

Bangkok Suvarnabhumi

Tue 10/2

13:20-18:40

1 stop20h 20m

Seattle/Tacoma Intl

Tue 10/3

22:30-17:50

1 stop29h 20m

฿20,815

BangkokSeattle

BKK - SEA

BKKSEA

Bangkok Suvarnabhumi

Mon 22/12

18:45-18:40

1 stop38h 55m

Seattle/Tacoma Intl

Sun 11/1

21:30-12:00

1 stop23h 30m

฿22,826

BangkokSeattle

BKK - SEA

BKKSEA

Bangkok Suvarnabhumi

Mon 22/12

23:50-18:40

1 stop33h 50m

Seattle/Tacoma Intl

Fri 9/1

21:30-23:00

1 stop34h 30m

฿22,826

BangkokSeattle

BKK - SEA

BKKSEA

Bangkok Suvarnabhumi

Mon 22/12

18:45-18:40

1 stop38h 55m

Seattle/Tacoma Intl

Thu 8/1

21:30-12:00

1 stop23h 30m

฿22,826

BangkokSeattle

BKK - SEA

BKKSEA

Bangkok Suvarnabhumi

Thu 18/12

23:50-18:40

1 stop33h 50m

Seattle/Tacoma Intl

Fri 9/1

21:30-12:00

1 stop23h 30m

฿23,182

BangkokSeattle

BKK - SEA

BKKSEA

Bangkok Suvarnabhumi

Mon 22/12

02:35-18:10

1 stop30h 35m

Seattle/Tacoma Intl

Sun 28/12

00:10-16:45

1 stop25h 35m

฿25,225

BangkokSeattle

BKK - SEA

BKKSEA

Bangkok Suvarnabhumi

Mon 9/2

02:35-18:10

1 stop30h 35m

Seattle/Tacoma Intl

Mon 9/3

01:10-09:50

1 stop18h 40m

฿25,257

BangkokSeattle

BKK - SEA

BKKSEA

Bangkok Suvarnabhumi

Sat 24/1

16:55-16:29

2 stops38h 34m

Seattle/Tacoma Intl

Sat 31/1

09:00-11:25

2 stops35h 25m

฿25,679

BangkokSeattle

BKK - SEA

BKKSEA

Bangkok Suvarnabhumi

Mon 2/2

16:55-15:44

3 stops37h 49m

Seattle/Tacoma Intl

Mon 2/3

09:19-11:25

3 stops59h 06m

฿25,679

BangkokSeattle

DMK - SEA

DMKSEA

Bangkok Don Mueang Intl

Mon 2/2

17:25-08:00

2 stops29h 35m

Seattle/Tacoma Intl

Sun 1/3

08:45-22:10

1 stop22h 25m

฿30,153

Flights are sorted by cheapest return flights first.

Deals found on 18/11

Showing 1-10 of 36 results
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Best time to book a flight to Seattle

Have a flexible travel schedule? Discover the best time to fly to Seattle with our price prediction graph.
Estimated return price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight to Seattle

When is the best time to book a flight to Seattle?

Use this chart to determine the optimal time to book a return flight from Bangkok to Seattle. Price data was last updated on 14 November 2025.

To ensure you get the cheapest price possible for a flight to Seattle, you should look to book at least 65 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.

How long is the flight to Seattle?

On average, a flight from Bangkok to Seattle takes 16 hours 22 minutes. Flights to Seattle from other popular cities in Thailand will vary in length. Below are a few examples of popular routes and their flight times.

When is the cheapest time to fly to Seattle?

Use this chart to determine the cheapest time to fly return from Bangkok to Seattle. Price data was last updated on 16 December 2024.

Users looking for the lowest fares to Seattle should consider flying on Wednesday at midday, when prices are typically cheapest. Budget-minded travellers will want to avoid Monday at midday, when prices are usually at their highest.

What are the most popular airlines that fly to Seattle?

The most popular airlines flying from Bangkok to Seattle are EVA Air, Asiana Airlines and China Airlines.

EVA Air
EVA Air
From ฿26,437
เดลต้า
เดลต้า
From ฿26,867
Korean Air
Korean Air
From ฿26,237
Asiana Airlines
Asiana Airlines
From ฿22,250

What are the cheapest airlines that fly to Seattle?

The cheapest airlines flying from Bangkok to Seattle are Philippine Airlines, Asiana Airlines and STARLUX Airlines.

Rainfall in Seattle by month

Plan your trip to Seattle by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Seattle ranges from 18.0 - 168.0 mm per month. November is typically the wettest month, when rainfall can reach 168.0 mm. July is typically the driest time to visit Seattle when rainfall is around 18.0 mm.

Temperature in Seattle by month

Plan your trip to Seattle by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Seattle, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 19.0 C. Travellers hoping to avoid the cold should look outside of December, when temperatures are typically at their lowest (around 5.0 C).

Reviews of airlines servicing Seattle

Get insights into the airlines that provide service to Seattle. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Seattle. Reviews last updated 20 November 2025.
Get a feel of what it's like to fly with STARLUX Airlines, EVA Air, andKorean Air to the United States by reading reviews from past customers. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
STARLUX Airlines
8.9
Very Good
Check prices

Comfort

8.9

Entertainment

8.9

Overall

8.9

Crew

9.2

Food

8.7

Boarding

9.0

Reviews

1 / 9
10.0
Excellent

Chad,Nov 2025

TPE - SEA

Starlux Airlines was amazing. No complaints on anything with them
STARLUX Airlines
8.9
Very Good
STARLUX Airlines
8.9
Very Good
Check prices

Comfort

8.9

Entertainment

8.9

Overall

8.9

Crew

9.2

Food

8.7

Boarding

9.0

Reviews

1 / 9
10.0
Excellent

Chad,Nov 2025

TPE - SEA

Starlux Airlines was amazing. No complaints on anything with them
EVA Air
8.4
Very Good
1,280 reviews
STARLUX Airlines
8.9
Very Good
Check prices

Comfort

8.9

Entertainment

8.9

Overall

8.9

Crew

9.2

Food

8.7

Boarding

9.0

Reviews

1 / 9
10.0
Excellent

Chad,Nov 2025

TPE - SEA

Starlux Airlines was amazing. No complaints on anything with them
Korean Air
8.4
Very Good
1,170 reviews
STARLUX Airlines
8.9
Very Good
Check prices

Comfort

8.9

Entertainment

8.9

Overall

8.9

Crew

9.2

Food

8.7

Boarding

9.0

Reviews

1 / 9
10.0
Excellent

Chad,Nov 2025

TPE - SEA

Starlux Airlines was amazing. No complaints on anything with them
China Airlines
8.3
Very Good
782 reviews
STARLUX Airlines
8.9
Very Good
Check prices

Comfort

8.9

Entertainment

8.9

Overall

8.9

Crew

9.2

Food

8.7

Boarding

9.0

Reviews

1 / 9
10.0
Excellent

Chad,Nov 2025

TPE - SEA

Starlux Airlines was amazing. No complaints on anything with them
Asiana Airlines
8.2
Very Good
488 reviews
STARLUX Airlines
8.9
Very Good
Check prices

Comfort

8.9

Entertainment

8.9

Overall

8.9

Crew

9.2

Food

8.7

Boarding

9.0

Reviews

1 / 9
10.0
Excellent

Chad,Nov 2025

TPE - SEA

Starlux Airlines was amazing. No complaints on anything with them

FAQs about flying to Seattle

  • What airport do you fly into for flights to Seattle?

    Seattle/Tacoma Intl (SEA), located 18.4 km from the city centre, is the airport you fly into when you book flights to Seattle.

  • Can I find cheaper flights to Seattle if I am willing to have stopovers?

    Yes, flights with stopovers are often cheaper than direct flights. Keep an eye out for flight deals to Seattle on Cheapflights that require 1 or 2 stops for potential cost savings.

  • What is the best airline to fly to Seattle?

    Based on reviews from Cheapflights users, Philippine Airlines is rated the highest out of the airlines that fly to Seattle.

  • What is the cheapest airport to fly to in Seattle?

    Seattle/Tacoma Intl is currently the cheapest airport to fly to in Seattle. One-way flights to Seattle/Tacoma Intl typically cost ฿2,545, while return flights cost around ฿8,547.

  • How much is a return flight to Seattle?

    A return flight to Seattle will typically cost around ฿8,547, however they can be found for as little as ฿8,547.

  • Where does the fastest flight to Seattle depart from?

    For those looking to save time traveling to Seattle, Bangkok offers the quickest one-way flight (15 hours 15 minutes).

  • Does Seattle/Tacoma Intl have rental cars?

    Yes. Those touching down at Seattle/Tacoma Intl can take advantage of the car hire services offered upon their arrival.

  • Are there hotels close to Seattle/Tacoma Intl?

    Yes. Seattle/Tacoma Intl has hotels nearby for those requiring accommodations. Seatac Inn is the closest property to Seattle/Tacoma Intl (0.0 km away from Seattle/Tacoma Intl).

See more FAQs

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Yes, Cheapflights offers price alerts on Seattle flights so you can book your flight when prices are ideal. Enable price alerts by clicking the bell icon next to the flight deals above and providing your email address where you want to receive the alerts.

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