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฿16,344+ 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 15/6. Fares are subject to change and may not be available on all flights or dates of travel.
— SEA
14 May — 21 May1
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 14 April 2026.

Thu 17/1214:20
BKK
-
SEA
1 stop38h 00m
ANA
Thu 14/110:35
SEA
-
BKK
2 stops28h 55m
ANA
Deal found 11/4฿22,810
Wed 16/907:00
BKK
-
SEA
2 stops23h 15m
ANA
Wed 21/1016:30
SEA
-
BKK
1 stop23h 25m
ANA
Deal found 14/4฿22,939
Tue 15/909:35
BKK
-
SEA
1 stop18h 50m
ANA
Tue 20/1016:30
SEA
-
BKK
1 stop33h 00m
ANA
Deal found 14/4฿23,100
Fri 5/615:45
BKK
-
SEA
2 stops45h 34m
United Airlines
Mon 23/1106:57
SEA
-
BKK
2 stops37h 28m
United Airlines
Deal found 9/4฿23,132
Thu 4/615:45
BKK
-
SEA
2 stops23h 44m
United Airlines
Mon 23/1106:57
SEA
-
BKK
2 stops37h 28m
United Airlines
Deal found 11/4฿23,164
Thu 15/1015:45
BKK
-
SEA
2 stops44h 11m
United Airlines
Sun 18/1008:35
SEA
-
BKK
2 stops35h 00m
United Airlines
Deal found 10/4฿23,229
Thu 18/621:40
BKK
-
SEA
1 stop31h 15m
Multiple Airlines
Sun 19/700:55
SEA
-
BKK
1 stop32h 40m
Multiple Airlines
Deal found 10/4฿24,901
Sun 12/709:50
BKK
-
SEA
1 stop19h 35m
Multiple Airlines
Mon 20/700:55
SEA
-
BKK
1 stop30h 50m
Multiple Airlines
Deal found 9/4฿24,998
Mon 1/609:35
BKK
-
SEA
1 stop18h 50m
United Airlines
Tue 1/915:33
SEA
-
BKK
2 stops28h 02m
United Airlines
Deal found 13/4฿25,352
Sun 12/709:50
BKK
-
SEA
1 stop19h 35m
Multiple Airlines
Tue 21/700:55
SEA
-
BKK
1 stop34h 10m
Multiple Airlines
Deal found 12/4฿25,448
Fri 23/1011:05
DMK
-
SEA
2 stops35h 40m
Multiple Airlines
Fri 30/1000:10
SEA
-
DMK
2 stops33h 00m
Multiple Airlines
Deal found 12/4฿35,165
Mon 25/507:30
DMK
-
SEA
2 stops21h 25m
Multiple Airlines
Wed 16/923:10
SEA
-
DMK
1 stop22h 15m
Multiple Airlines
Deal found 14/4฿39,283

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 14 April 2026.

Return from

฿22,939

One-way from

฿16,344

Popular in

July

Cheapest in

March

Average price

฿27,733
ANA
  • ANA
  • 16/9-21/10
  • 3 total stops
  • 46h 40m total
  • Bangkok to Seattle
Search Deals
Philippine Airlines
  • Philippine Airlines
  • 15/6
  • 1 total stop
  • 23h 45m total
  • Bangkok to Seattle
Search Deals
Highest demand for flights based on searches. 13% potential increase in price (฿4,233 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease (฿682 potential savings vs. average return price).
Search Deals
Average for return flights in April 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 14 April 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

Fri 5/6

09:35-14:25

1 stop18h 50m

Seattle/Tacoma Intl

Sat 5/9

10:54-09:35

2 stops32h 41m

฿25,352

BangkokSeattle

BKK - SEA

BKKSEA

Bangkok Suvarnabhumi

Mon 1/6

23:30-13:25

1 stop27h 55m

Seattle/Tacoma Intl

Wed 16/9

13:00-13:35

1 stop34h 35m

฿26,124

BangkokSeattle

BKK - SEA

BKKSEA

Bangkok Suvarnabhumi

Sat 6/6

21:40-11:00

1 stop27h 20m

Seattle/Tacoma Intl

Mon 23/11

11:00-00:45

1 stop22h 45m

฿26,285

BangkokSeattle

BKK - SEA

BKKSEA

Bangkok Suvarnabhumi

Sat 6/6

21:40-11:00

1 stop27h 20m

Seattle/Tacoma Intl

Sun 22/11

11:00-00:45

1 stop22h 45m

฿26,285

BangkokSeattle

BKK - SEA

BKKSEA

Bangkok Suvarnabhumi

Sat 6/6

02:35-11:00

1 stop22h 25m

Seattle/Tacoma Intl

Tue 24/11

11:00-00:45

1 stop22h 45m

฿26,285

BangkokSeattle

BKK - SEA

BKKSEA

Bangkok Suvarnabhumi

Fri 5/6

15:45-01:13

2 stops47h 28m

Seattle/Tacoma Intl

Sun 22/11

18:51-11:25

2 stops49h 34m

฿26,381

BangkokSeattle

BKK - SEA

BKKSEA

Bangkok Suvarnabhumi

Thu 18/6

23:30-13:25

1 stop27h 55m

Seattle/Tacoma Intl

Sun 19/7

13:05-13:35

1 stop34h 30m

฿26,381

BangkokSeattle

BKK - SEA

BKKSEA

Bangkok Suvarnabhumi

Fri 5/6

23:30-13:25

1 stop27h 55m

Seattle/Tacoma Intl

Sun 22/11

13:00-13:25

1 stop33h 25m

฿26,446

BangkokSeattle

BKK - SEA

BKKSEA

Bangkok Suvarnabhumi

Sat 6/6

09:35-14:25

1 stop18h 50m

Seattle/Tacoma Intl

Mon 16/11

06:57-11:25

2 stops37h 28m

฿27,379

BangkokSeattle

BKK - SEA

BKKSEA

Bangkok Suvarnabhumi

Sat 6/6

15:45-21:59

2 stops44h 14m

Seattle/Tacoma Intl

Mon 23/11

06:57-11:25

2 stops37h 28m

฿28,183

Flights are sorted by cheapest return flights first.

Deals found on 9/4

Showing 1-10 of 41 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 10 April 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 17 hours 57 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.

EVA Air
EVA Air
From ฿25,586
เดลต้า
เดลต้า
From ฿26,904
China Airlines
China Airlines
From ฿23,654
Asiana Airlines
Asiana Airlines
From ฿21,569

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 14 April 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

Entertainment

8.8

Comfort

8.9

Crew

9.2

Food

8.6

Overall

8.9

Boarding

9.0

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

Entertainment

8.8

Comfort

8.9

Crew

9.2

Food

8.6

Overall

8.9

Boarding

9.0

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
1,411 reviews
STARLUX Airlines
8.9
Very Good
Check prices

Entertainment

8.8

Comfort

8.9

Crew

9.2

Food

8.6

Overall

8.9

Boarding

9.0

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
516 reviews
STARLUX Airlines
8.9
Very Good
Check prices

Entertainment

8.8

Comfort

8.9

Crew

9.2

Food

8.6

Overall

8.9

Boarding

9.0

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
8,403 reviews
STARLUX Airlines
8.9
Very Good
Check prices

Entertainment

8.8

Comfort

8.9

Crew

9.2

Food

8.6

Overall

8.9

Boarding

9.0

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
986 reviews
STARLUX Airlines
8.9
Very Good
Check prices

Entertainment

8.8

Comfort

8.9

Crew

9.2

Food

8.6

Overall

8.9

Boarding

9.0

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 ฿2,844, while return flights cost around ฿4,079.

  • How much is a return flight to Seattle?

    A return flight to Seattle will typically cost around ฿4,079, however they can be found for as little as ฿4,079.

  • 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 (17 hours 5 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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