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฿15,605+ 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 15/5. Fares are subject to change and may not be available on all flights or dates of travel.
— SEA
18 Apr — 25 Apr1
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 19 March 2026.

Mon 1/623:40
BKK
-
SEA
1 stop34h 25m
Philippine Airlines
Tue 1/923:10
SEA
-
BKK
1 stop23h 00m
Philippine Airlines
Deal found 15/3฿20,022
Sun 31/501:20
BKK
-
SEA
1 stop27h 35m
Asiana Airlines
Tue 15/900:55
SEA
-
BKK
1 stop32h 25m
Asiana Airlines
Deal found 15/3฿21,265
Sat 6/601:20
BKK
-
SEA
1 stop27h 35m
Asiana Airlines
Mon 9/1100:10
SEA
-
BKK
1 stop30h 50m
Asiana Airlines
Deal found 15/3฿21,560
Thu 9/723:40
BKK
-
SEA
1 stop34h 25m
Philippine Airlines
Tue 8/923:10
SEA
-
BKK
1 stop29h 20m
Philippine Airlines
Deal found 14/3฿21,789
Thu 23/401:20
BKK
-
SEA
1 stop27h 35m
Asiana Airlines
Thu 7/500:55
SEA
-
BKK
1 stop32h 25m
Asiana Airlines
Deal found 15/3฿21,854
Tue 7/713:25
BKK
-
SEA
1 stop20h 40m
Philippine Airlines
Sun 6/923:10
SEA
-
BKK
1 stop23h 00m
Philippine Airlines
Deal found 14/3฿22,018
Thu 4/607:00
BKK
-
SEA
2 stops32h 29m
United Airlines
Mon 9/1106:57
SEA
-
BKK
2 stops26h 23m
United Airlines
Deal found 15/3฿22,312
Thu 4/611:45
BKK
-
SEA
1 stop17h 10m
Asiana Airlines
Sun 8/1100:10
SEA
-
BKK
1 stop30h 50m
Asiana Airlines
Deal found 15/3฿22,345
Fri 10/710:20
BKK
-
SEA
1 stop23h 45m
Philippine Airlines
Tue 8/923:10
SEA
-
BKK
1 stop29h 20m
Philippine Airlines
Deal found 14/3฿22,378
Sat 6/615:45
BKK
-
SEA
2 stops47h 44m
United Airlines
Wed 11/1118:51
SEA
-
BKK
2 stops49h 34m
United Airlines
Deal found 15/3฿22,410
Tue 23/609:35
BKK
-
SEA
1 stop18h 50m
United Airlines
Tue 4/808:45
SEA
-
BKK
2 stops25h 10m
United Airlines
Deal found 17/3฿22,476
Sun 7/609:20
DMK
-
SEA
2 stops23h 55m
Multiple Airlines
Wed 11/1123:55
SEA
-
DMK
1 stop20h 45m
Multiple Airlines
Deal found 15/3฿31,669

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 19 March 2026.

Return from

฿20,022

One-way from

฿15,605

Popular in

July

Cheapest in

March

Average price

฿24,275
Philippine Airlines
  • Philippine Airlines
  • 1/6-1/9
  • 2 total stops
  • 57h 25m total
  • Bangkok to Seattle
Search Deals
15/5
  • 15/5
  • 2 total stops
  • 40h 05m total
  • Bangkok to Seattle
Search Deals
Highest demand for flights based on searches. 12% potential increase in price (฿4,032 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease (฿694 potential savings vs. average return price).
Search Deals
Average for return flights in March 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 19 March 2026.
Use the filters below to find and compare flights to Seattle that are best for you.

Fly from

Route

Depart

Return

Price

Cheapest return flight

BangkokSeattle

BKK - SEA

BKKSEA

Bangkok Suvarnabhumi

Mon 8/6

11:45-14:55

1 stop17h 10m

Seattle/Tacoma Intl

Tue 10/11

00:10-22:00

1 stop30h 50m

฿22,345

BangkokSeattle

BKK - SEA

BKKSEA

Bangkok Suvarnabhumi

Sat 6/6

21:40-11:00

1 stop27h 20m

Seattle/Tacoma Intl

Fri 13/11

07:20-00:45

2 stops26h 25m

฿25,780

BangkokSeattle

BKK - SEA

BKKSEA

Bangkok Suvarnabhumi

Sat 27/6

02:35-13:25

1 stop24h 50m

Seattle/Tacoma Intl

Sun 26/7

13:05-23:35

1 stop20h 30m

฿27,743
Fastest return journey

BangkokSeattle

BKK - SEA

BKKSEA

Bangkok Suvarnabhumi

Wed 22/7

09:35-14:25

1 stop18h 50m

Seattle/Tacoma Intl

Tue 18/8

16:30-04:35

1 stop22h 05m

฿28,986

BangkokSeattle

BKK - SEA

BKKSEA

Bangkok Suvarnabhumi

Mon 27/4

01:20-14:55

1 stop27h 35m

Seattle/Tacoma Intl

Tue 28/4

00:55-23:20

1 stop32h 25m

฿30,818

BangkokSeattle

DMK - SEA

DMKSEA

Bangkok Don Mueang Intl

Sun 7/6

09:20-19:15

2 stops23h 55m

Seattle/Tacoma Intl

Fri 13/11

23:55-11:40

1 stop20h 45m

฿31,669

BangkokSeattle

DMK - SEA

DMKSEA

Bangkok Don Mueang Intl

Sun 7/6

09:20-19:15

2 stops23h 55m

Seattle/Tacoma Intl

Wed 11/11

23:55-11:40

1 stop20h 45m

฿31,669

BangkokSeattle

DMK - SEA

DMKSEA

Bangkok Don Mueang Intl

Mon 8/6

09:20-19:15

2 stops23h 55m

Seattle/Tacoma Intl

Wed 11/11

23:55-11:40

1 stop20h 45m

฿32,127

BangkokSeattle

DMK - SEA

DMKSEA

Bangkok Don Mueang Intl

Tue 16/6

07:30-14:55

2 stops21h 25m

Seattle/Tacoma Intl

Sun 10/1

23:55-22:00

1 stop31h 05m

฿32,618

BangkokSeattle

BKK - SEA

BKKSEA

Bangkok Suvarnabhumi

Sat 4/7

23:30-13:41

1 stop28h 11m

Seattle/Tacoma Intl

Sat 1/8

07:20-23:35

2 stops26h 15m

฿34,712

Flights are sorted by cheapest return flights first.

Deals found on 14/3

Showing 1-10 of 46 resultsSorted by cheapest first
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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 13 March 2026.

To ensure you get the cheapest price possible for a flight to Seattle, you should look to book at least 81 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 50 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, Asiana Airlines and Philippine Airlines.

เดลต้า
เดลต้า
From ฿27,110
EVA Air
EVA Air
From ฿26,018
China Airlines
China Airlines
From ฿24,054
Asiana Airlines
Asiana Airlines
From ฿21,934

What are the cheapest airlines that fly to Seattle?

The cheapest airlines flying from Bangkok to Seattle are Philippine Airlines, Asiana 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 19 March 2026.
Get a feel of what it's like to fly with STARLUX Airlines,EVA Air, andAsiana 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

Boarding

9.0

Crew

9.2

Comfort

8.9

Food

8.7

Overall

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

Boarding

9.0

Crew

9.2

Comfort

8.9

Food

8.7

Overall

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
8.5
Very Good
1,379 reviews
STARLUX Airlines
8.9
Very Good
Check prices

Boarding

9.0

Crew

9.2

Comfort

8.9

Food

8.7

Overall

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.
Asiana Airlines
8.1
Very Good
506 reviews
STARLUX Airlines
8.9
Very Good
Check prices

Boarding

9.0

Crew

9.2

Comfort

8.9

Food

8.7

Overall

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
8,303 reviews
STARLUX Airlines
8.9
Very Good
Check prices

Boarding

9.0

Crew

9.2

Comfort

8.9

Food

8.7

Overall

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
970 reviews
STARLUX Airlines
8.9
Very Good
Check prices

Boarding

9.0

Crew

9.2

Comfort

8.9

Food

8.7

Overall

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 ฿2,892, while return flights cost around ฿4,148.

  • How much is a return flight to Seattle?

    A return flight to Seattle will typically cost around ฿4,148, however they can be found for as little as ฿4,148.

  • 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 50 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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