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Thailand (ภาษาไทย)
ภาษาไทย

฿13,025+ 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 7/12. Fares are subject to change and may not be available on all flights or dates of travel.
— SEA
1 Jan — 8 Jan1
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 2 December 2025.

Mon 15/1223:50BKK - SEA
1 stop33h 50mPhilippine Airlines
Wed 31/1221:30SEA - BKK
1 stop23h 30mPhilippine Airlines
Deal found 30/11฿20,961
Wed 24/1213:20BKK - SEA
1 stop20h 20mPhilippine Airlines
Fri 16/121:30SEA - BKK
1 stop23h 30mPhilippine Airlines
Deal found 1/12฿21,954
Mon 15/1210:55BKK - SEA
1 stop22h 15mChina Airlines
Tue 30/1200:10SEA - BKK
1 stop21h 55mChina Airlines
Deal found 30/11฿24,482
Wed 24/1219:10BKK - SEA
2 stops27h 55mMultiple Airlines
Fri 16/108:45SEA - BKK
1 stop43h 00mMultiple Airlines
Deal found 1/12฿25,954
Wed 24/1216:55BKK - SEA
2 stops34h 32mUnited Airlines
Fri 16/112:35SEA - BKK
2 stops31h 50mUnited Airlines
Deal found 1/12฿26,210
Sat 13/1212:45BKK - SEA
1 stop20h 25mEVA Air
Sat 27/1223:30SEA - BKK
1 stop34h 55mEVA Air
Deal found 30/11฿26,306
Sun 14/1202:15BKK - SEA
2 stops24h 09mMultiple Airlines
Tue 30/1200:10SEA - BKK
1 stop19h 35mMultiple Airlines
Deal found 30/11฿27,490
Sun 14/1202:05BKK - SEA
1 stop21h 55mKorean Air
Wed 31/1211:00SEA - BKK
1 stop19h 30mKorean Air
Deal found 30/11฿27,746
Sun 14/1202:15BKK - SEA
1 stop30h 55mEVA Air
Tue 30/1200:10SEA - BKK
1 stop34h 15mEVA Air
Deal found 30/11฿28,162
Sat 13/1217:40BKK - SEA
2 stops31h 21mCathay Pacific
Sat 27/1223:10SEA - BKK
2 stops34h 05mCathay Pacific
Deal found 30/11฿28,578
Mon 15/1215:05DMK - SEA
3 stops33h 26mMultiple Airlines
Tue 30/1200:10SEA - DMK
2 stops33h 25mMultiple Airlines
Deal found 30/11฿33,314
Sat 13/1223:50DMK - SEA
2 stops29h 41mMultiple Airlines
Sat 27/1205:50SEA - DMK
3 stops29h 00mMultiple Airlines
Deal found 30/11฿34,594

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 2 December 2025.

Return from

฿19,265

One-way from

฿13,025

Popular in

July

Cheapest in

February

Average price

฿27,618
Philippine Airlines
  • Philippine Airlines
  • 17/3-7/4
  • 2 total stops
  • 67h 20m total
  • Bangkok to Seattle
Search Deals
Philippine Airlines
  • Philippine Airlines
  • 7/12
  • 1 total stop
  • 20h 20m total
  • Bangkok to Seattle
Search Deals
Highest demand for flights based on searches. 10% potential increase in price (฿3,256 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease (฿571 potential savings vs. average return price).
Search Deals
Average for return flights in December 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 2 December 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

Thu 23/4

13:25-20:05

1 stop20h 40m

Seattle/Tacoma Intl

Wed 13/5

23:10-22:40

1 stop33h 30m

฿22,914

BangkokSeattle

BKK - SEA

BKKSEA

Bangkok Suvarnabhumi

Wed 4/3

02:15-17:30

1 stop30h 15m

Seattle/Tacoma Intl

Thu 5/3

23:30-11:30

1 stop21h 00m

฿24,610

BangkokSeattle

BKK - SEA

BKKSEA

Bangkok Suvarnabhumi

Fri 22/5

09:35-14:25

1 stop18h 50m

Seattle/Tacoma Intl

Mon 1/6

16:30-04:35

1 stop22h 05m

฿24,834

BangkokSeattle

BKK - SEA

BKKSEA

Bangkok Suvarnabhumi

Wed 22/4

09:35-14:25

1 stop18h 50m

Seattle/Tacoma Intl

Mon 18/5

16:30-04:35

1 stop22h 05m

฿24,834

BangkokSeattle

BKK - SEA

BKKSEA

Bangkok Suvarnabhumi

Tue 28/4

09:35-14:25

1 stop18h 50m

Seattle/Tacoma Intl

Wed 13/5

06:30-23:55

2 stops27h 25m

฿25,090

BangkokSeattle

BKK - SEA

BKKSEA

Bangkok Suvarnabhumi

Thu 23/4

09:35-14:25

1 stop18h 50m

Seattle/Tacoma Intl

Wed 13/5

06:30-23:55

2 stops27h 25m

฿25,090

BangkokSeattle

BKK - SEA

BKKSEA

Bangkok Suvarnabhumi

Thu 23/4

09:35-14:25

1 stop18h 50m

Seattle/Tacoma Intl

Tue 19/5

06:30-23:55

2 stops27h 25m

฿25,090

BangkokSeattle

BKK - SEA

BKKSEA

Bangkok Suvarnabhumi

Tue 10/2

13:45-15:05

1 stop16h 20m

Seattle/Tacoma Intl

Mon 9/3

00:45-16:30

1 stop25h 45m

฿25,154

BangkokSeattle

BKK - SEA

BKKSEA

Bangkok Suvarnabhumi

Thu 29/1

13:45-15:05

1 stop16h 20m

Seattle/Tacoma Intl

Mon 2/2

23:45-16:30

1 stop25h 45m

฿25,154

BangkokSeattle

BKK - SEA

BKKSEA

Bangkok Suvarnabhumi

Tue 10/2

17:50-18:10

1 stop15h 20m

Seattle/Tacoma Intl

Mon 9/3

01:10-16:45

1 stop25h 35m

฿25,186

Flights are sorted by cheapest return flights first.

Deals found on 1/12

Showing 1-10 of 42 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 28 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 17 hours 30 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, China Airlines and เดลต้า.

EVA Air
EVA Air
From ฿25,451
เดลต้า
เดลต้า
From ฿26,518
China Airlines
China Airlines
From ฿23,920
Philippine Airlines
Philippine Airlines
From ฿20,548

What are the cheapest airlines that fly to Seattle?

The cheapest airlines flying from Bangkok to Seattle are Philippine Airlines, STARLUX Airlines and China 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 2 December 2025.
Get a feel of what it's like to fly with STARLUX Airlines, EVA Air, andChina Airlines 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

Entertainment

8.9

Overall

8.9

Boarding

9.0

Food

8.7

Comfort

8.9

Crew

9.2

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

Entertainment

8.9

Overall

8.9

Boarding

9.0

Food

8.7

Comfort

8.9

Crew

9.2

Reviews

1 / 9
10.0
Excellent

Chad,Nov 2025

TPE - SEA

Starlux Airlines was amazing. No complaints on anything with them
EVA Air
8.5
Very Good
1,288 reviews
STARLUX Airlines
8.9
Very Good
Check prices

Entertainment

8.9

Overall

8.9

Boarding

9.0

Food

8.7

Comfort

8.9

Crew

9.2

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
785 reviews
STARLUX Airlines
8.9
Very Good
Check prices

Entertainment

8.9

Overall

8.9

Boarding

9.0

Food

8.7

Comfort

8.9

Crew

9.2

Reviews

1 / 9
10.0
Excellent

Chad,Nov 2025

TPE - SEA

Starlux Airlines was amazing. No complaints on anything with them
เดลต้า
7.9
Good
8,010 reviews
STARLUX Airlines
8.9
Very Good
Check prices

Entertainment

8.9

Overall

8.9

Boarding

9.0

Food

8.7

Comfort

8.9

Crew

9.2

Reviews

1 / 9
10.0
Excellent

Chad,Nov 2025

TPE - SEA

Starlux Airlines was amazing. No complaints on anything with them
Philippine Airlines
7.3
Good
941 reviews
STARLUX Airlines
8.9
Very Good
Check prices

Entertainment

8.9

Overall

8.9

Boarding

9.0

Food

8.7

Comfort

8.9

Crew

9.2

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 ฿2,512, while return flights cost around ฿8,436.

  • How much is a return flight to Seattle?

    A return flight to Seattle will typically cost around ฿8,436, however they can be found for as little as ฿8,436.

  • 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 (16 hours 20 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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