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฿13,416+ 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 13/3. Fares are subject to change and may not be available on all flights or dates of travel.
— SEA
27 Feb — 6 Mar1
1 adult
1 adult, Economy, 0 bags

Flights to Seattle in 2026

Enter your travel dates to find the best prices.

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 28 January 2026.

Mon 9/301:05
BKK
-
SEA
1 stop21h 55m
ไห่หนานแอร์ไลน์
Tue 17/311:00
SEA
-
BKK
1 stop37h 20m
ไห่หนานแอร์ไลน์
Deal found 25/1฿19,720
Tue 17/323:50
BKK
-
SEA
1 stop33h 50m
Philippine Airlines
Tue 7/423:10
SEA
-
BKK
1 stop33h 30m
Philippine Airlines
Deal found 27/1฿19,813
Mon 16/301:05
BKK
-
SEA
1 stop21h 55m
ไห่หนานแอร์ไลน์
Tue 7/411:00
SEA
-
BKK
1 stop22h 00m
ไห่หนานแอร์ไลน์
Deal found 25/1฿19,938
Mon 23/309:40
BKK
-
SEA
1 stop19h 15m
Multiple Airlines
Sun 5/400:55
SEA
-
BKK
1 stop20h 20m
Multiple Airlines
Deal found 26/1฿20,093
Mon 9/212:20
BKK
-
SEA
1 stop16h 35m
Asiana Airlines
Mon 6/400:55
SEA
-
BKK
1 stop20h 20m
Asiana Airlines
Deal found 25/1฿20,341
Tue 3/323:55
BKK
-
SEA
1 stop29h 00m
Asiana Airlines
Mon 23/300:10
SEA
-
BKK
1 stop31h 50m
Asiana Airlines
Deal found 25/1฿20,621
Mon 1/623:40
BKK
-
SEA
1 stop34h 25m
Philippine Airlines
Tue 1/923:10
SEA
-
BKK
1 stop23h 00m
Philippine Airlines
Deal found 25/1฿20,683
Wed 15/423:40
BKK
-
SEA
1 stop34h 25m
Philippine Airlines
Tue 30/623:10
SEA
-
BKK
1 stop29h 20m
Philippine Airlines
Deal found 27/1฿20,776
Wed 1/719:30
BKK
-
SEA
1 stop38h 35m
Philippine Airlines
Thu 16/723:10
SEA
-
BKK
1 stop23h 00m
Philippine Airlines
Deal found 27/1฿20,838
Mon 30/301:20
BKK
-
SEA
1 stop27h 35m
Asiana Airlines
Thu 4/600:55
SEA
-
BKK
1 stop20h 20m
Asiana Airlines
Deal found 25/1฿20,900
Tue 14/413:25
BKK
-
SEA
1 stop20h 40m
Philippine Airlines
Wed 3/623:10
SEA
-
BKK
1 stop23h 00m
Philippine Airlines
Deal found 25/1฿20,993
Mon 23/307:30
DMK
-
SEA
2 stops21h 25m
Multiple Airlines
Sun 5/400:55
SEA
-
DMK
2 stops26h 40m
Multiple Airlines
Deal found 26/1฿28,074

Find flight deals to Seattle

Find the latest flights to Seattle in 2026, 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 28 January 2026.

Return from

฿19,720

One-way from

฿13,416

Popular in

July

Cheapest in

December

Average price

฿28,291
Philippine Airlines
  • Philippine Airlines
  • 20/5-30/7
  • 2 total stops
  • 63h 45m total
  • Bangkok to Seattle
Search Deals
ไห่หนานแอร์ไลน์
  • ไห่หนานแอร์ไลน์
  • 13/3
  • 1 total stop
  • 21h 55m total
  • Bangkok to Seattle
Search Deals
Highest demand for flights based on searches. 10% potential increase in price (฿3,319 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease (฿629 potential savings vs. average return price).
Search Deals
Average for return flights in January 2026
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 28 January 2026.
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

Wed 11/2

12:20-13:55

1 stop16h 35m

Seattle/Tacoma Intl

Thu 9/4

00:55-23:10

1 stop32h 15m

฿21,584

BangkokSeattle

BKK - SEA

BKKSEA

Bangkok Suvarnabhumi

Wed 8/4

01:20-14:55

1 stop27h 35m

Seattle/Tacoma Intl

Thu 16/4

00:55-11:15

1 stop20h 20m

฿21,677

BangkokSeattle

BKK - SEA

BKKSEA

Bangkok Suvarnabhumi

Thu 12/2

23:55-13:55

1 stop29h 00m

Seattle/Tacoma Intl

Fri 10/4

00:55-11:15

1 stop20h 20m

฿21,863

BangkokSeattle

BKK - SEA

BKKSEA

Bangkok Suvarnabhumi

Sun 8/2

12:20-13:55

1 stop16h 35m

Seattle/Tacoma Intl

Mon 30/3

00:55-23:10

1 stop32h 15m

฿21,863

BangkokSeattle

BKK - SEA

BKKSEA

Bangkok Suvarnabhumi

Sun 8/2

12:20-13:55

1 stop16h 35m

Seattle/Tacoma Intl

Sat 28/3

00:10-23:10

1 stop33h 00m

฿21,863

BangkokSeattle

BKK - SEA

BKKSEA

Bangkok Suvarnabhumi

Mon 6/4

12:20-14:55

1 stop16h 35m

Seattle/Tacoma Intl

Fri 17/4

00:55-23:10

1 stop32h 15m

฿21,987

BangkokSeattle

BKK - SEA

BKKSEA

Bangkok Suvarnabhumi

Wed 1/7

11:00-10:20

1 stop37h 20m

Seattle/Tacoma Intl

Mon 13/7

12:25-00:10

1 stop21h 45m

฿22,111

BangkokSeattle

BKK - SEA

BKKSEA

Bangkok Suvarnabhumi

Sun 5/4

12:20-14:55

1 stop16h 35m

Seattle/Tacoma Intl

Mon 20/4

00:55-11:15

1 stop20h 20m

฿22,267

BangkokSeattle

BKK - SEA

BKKSEA

Bangkok Suvarnabhumi

Fri 10/4

12:20-14:55

1 stop16h 35m

Seattle/Tacoma Intl

Thu 16/4

00:55-11:15

1 stop20h 20m

฿22,267

BangkokSeattle

BKK - SEA

BKKSEA

Bangkok Suvarnabhumi

Mon 27/4

23:40-20:05

1 stop34h 25m

Seattle/Tacoma Intl

Sun 27/9

23:10-22:40

1 stop33h 30m

฿22,329

Flights are sorted by cheapest return flights first.

Deals found on 26/1

Showing 1-10 of 37 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 23 January 2026.

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 18 hours 29 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.

What are the most popular airlines that fly to Seattle?

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

EVA Air
EVA Air
From ฿24,513
เดลต้า
เดลต้า
From ฿25,734
Philippine Airlines
Philippine Airlines
From ฿20,037
China Airlines
China Airlines
From ฿23,212

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 28 January 2026.
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

Crew

9.1

Overall

8.9

Food

8.6

Comfort

8.8

Boarding

8.9

Entertainment

8.8

Reviews

1 / 10
10.0
Excellent

Anonymous,Jan 2026

SEA - TPE

First time travelled with starlux and had best experience. Food was really good and crew is the best. Entertainment was also best. Having latest movies. I requested for isle seat at the last time and they provided me. Best airline service.
STARLUX Airlines
8.9
Very Good
STARLUX Airlines
8.9
Very Good
Check prices

Crew

9.1

Overall

8.9

Food

8.6

Comfort

8.8

Boarding

8.9

Entertainment

8.8

Reviews

1 / 10
10.0
Excellent

Anonymous,Jan 2026

SEA - TPE

First time travelled with starlux and had best experience. Food was really good and crew is the best. Entertainment was also best. Having latest movies. I requested for isle seat at the last time and they provided me. Best airline service.
EVA Air
8.4
Very Good
1,334 reviews
STARLUX Airlines
8.9
Very Good
Check prices

Crew

9.1

Overall

8.9

Food

8.6

Comfort

8.8

Boarding

8.9

Entertainment

8.8

Reviews

1 / 10
10.0
Excellent

Anonymous,Jan 2026

SEA - TPE

First time travelled with starlux and had best experience. Food was really good and crew is the best. Entertainment was also best. Having latest movies. I requested for isle seat at the last time and they provided me. Best airline service.
China Airlines
8.3
Very Good
802 reviews
STARLUX Airlines
8.9
Very Good
Check prices

Crew

9.1

Overall

8.9

Food

8.6

Comfort

8.8

Boarding

8.9

Entertainment

8.8

Reviews

1 / 10
10.0
Excellent

Anonymous,Jan 2026

SEA - TPE

First time travelled with starlux and had best experience. Food was really good and crew is the best. Entertainment was also best. Having latest movies. I requested for isle seat at the last time and they provided me. Best airline service.
เดลต้า
7.9
Good
8,123 reviews
STARLUX Airlines
8.9
Very Good
Check prices

Crew

9.1

Overall

8.9

Food

8.6

Comfort

8.8

Boarding

8.9

Entertainment

8.8

Reviews

1 / 10
10.0
Excellent

Anonymous,Jan 2026

SEA - TPE

First time travelled with starlux and had best experience. Food was really good and crew is the best. Entertainment was also best. Having latest movies. I requested for isle seat at the last time and they provided me. Best airline service.
Philippine Airlines
7.3
Good
957 reviews
STARLUX Airlines
8.9
Very Good
Check prices

Crew

9.1

Overall

8.9

Food

8.6

Comfort

8.8

Boarding

8.9

Entertainment

8.8

Reviews

1 / 10
10.0
Excellent

Anonymous,Jan 2026

SEA - TPE

First time travelled with starlux and had best experience. Food was really good and crew is the best. Entertainment was also best. Having latest movies. I requested for isle seat at the last time and they provided me. Best airline service.

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 ฿2,438, while return flights cost around ฿8,187.

  • How much is a return flight to Seattle?

    A return flight to Seattle will typically cost around ฿8,187, however they can be found for as little as ฿8,187.

  • 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 (19 hours 45 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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