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฿16,018+ 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 11/5. Fares are subject to change and may not be available on all flights or dates of travel.
— SEA
23 Apr — 30 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 24 March 2026.

Sun 26/401:20
BKK
-
SEA
1 stop27h 35m
Asiana Airlines
Sun 10/500:55
SEA
-
BKK
1 stop32h 25m
Asiana Airlines
Deal found 21/3฿22,380
Tue 23/621:35
BKK
-
SEA
1 stop30h 50m
ANA
Tue 4/807:00
SEA
-
BKK
2 stops26h 55m
ANA
Deal found 19/3฿22,445
Tue 23/613:25
BKK
-
SEA
1 stop20h 40m
Philippine Airlines
Tue 4/823:10
SEA
-
BKK
1 stop19h 45m
Philippine Airlines
Deal found 19/3฿22,478
Mon 15/621:40
BKK
-
SEA
1 stop29h 45m
เดลต้า
Mon 29/613:05
SEA
-
BKK
1 stop22h 00m
เดลต้า
Deal found 19/3฿22,511
Sun 14/623:35
BKK
-
SEA
1 stop28h 50m
ANA
Mon 11/115:45
SEA
-
BKK
1 stop23h 45m
ANA
Deal found 19/3฿22,543
Mon 25/501:20
BKK
-
SEA
1 stop27h 35m
Asiana Airlines
Tue 7/700:55
SEA
-
BKK
1 stop32h 25m
Asiana Airlines
Deal found 22/3฿22,576
Wed 7/1013:55
BKK
-
SEA
1 stop38h 30m
ANA
Sat 17/1016:30
SEA
-
BKK
1 stop23h 25m
ANA
Deal found 20/3฿22,608
Sat 13/601:20
BKK
-
SEA
1 stop27h 35m
Asiana Airlines
Sun 5/700:55
SEA
-
BKK
1 stop32h 25m
Asiana Airlines
Deal found 20/3฿22,674
Mon 11/501:20
BKK
-
SEA
1 stop27h 35m
Asiana Airlines
Mon 18/500:55
SEA
-
BKK
1 stop32h 25m
Asiana Airlines
Deal found 20/3฿22,739
Mon 15/615:45
BKK
-
SEA
2 stops23h 44m
United Airlines
Mon 11/106:29
SEA
-
BKK
2 stops26h 51m
United Airlines
Deal found 19/3฿22,772
Sun 14/611:45
BKK
-
SEA
1 stop17h 10m
Asiana Airlines
Thu 2/700:55
SEA
-
BKK
1 stop19h 45m
Asiana Airlines
Deal found 19/3฿22,837
Tue 23/607:30
DMK
-
SEA
2 stops21h 25m
Multiple Airlines
Tue 4/823:10
SEA
-
DMK
1 stop22h 15m
Multiple Airlines
Deal found 19/3฿33,277

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 24 March 2026.

Return from

฿22,380

One-way from

฿16,018

Popular in

July

Cheapest in

March

Average price

฿24,207
Asiana Airlines
  • Asiana Airlines
  • 26/4-10/5
  • 2 total stops
  • 60h 00m total
  • Bangkok to Seattle
Search Deals
Korean Air
  • Korean Air
  • 11/5
  • 1 total stop
  • 27h 00m total
  • Bangkok to Seattle
Search Deals
Highest demand for flights based on searches. 12% potential increase in price (฿4,020 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease (฿693 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 24 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

Tue 15/9

09:35-09:58

2 stops38h 23m

Seattle/Tacoma Intl

Fri 18/9

07:06-09:35

2 stops36h 29m

฿22,445

BangkokSeattle

BKK - SEA

BKKSEA

Bangkok Suvarnabhumi

Mon 15/6

21:40-13:25

1 stop29h 45m

Seattle/Tacoma Intl

Mon 29/6

13:05-01:05

1 stop22h 00m

฿22,511

BangkokSeattle

BKK - SEA

BKKSEA

Bangkok Suvarnabhumi

Tue 16/6

15:45-01:13

2 stops23h 28m

Seattle/Tacoma Intl

Sun 10/1

06:29-00:20

2 stops26h 51m

฿22,772

BangkokSeattle

BKK - SEA

BKKSEA

Bangkok Suvarnabhumi

Tue 16/6

15:45-01:13

2 stops23h 28m

Seattle/Tacoma Intl

Mon 11/1

06:29-00:20

2 stops26h 51m

฿22,772

BangkokSeattle

BKK - SEA

BKKSEA

Bangkok Suvarnabhumi

Mon 14/9

02:35-10:40

1 stop22h 05m

Seattle/Tacoma Intl

Fri 18/9

12:50-01:05

1 stop22h 15m

฿26,784

BangkokSeattle

BKK - SEA

BKKSEA

Bangkok Suvarnabhumi

Wed 29/7

09:35-14:25

1 stop18h 50m

Seattle/Tacoma Intl

Wed 12/8

07:06-23:55

2 stops26h 49m

฿28,677

BangkokSeattle

BKK - SEA

BKKSEA

Bangkok Suvarnabhumi

Mon 8/6

02:35-14:50

2 stops26h 15m

Seattle/Tacoma Intl

Tue 7/7

21:20-23:35

2 stops36h 15m

฿29,362

BangkokSeattle

BKK - SEA

BKKSEA

Bangkok Suvarnabhumi

Thu 9/7

07:00-01:29

2 stops32h 29m

Seattle/Tacoma Intl

Sun 13/9

16:30-04:35

1 stop22h 05m

฿30,047

BangkokSeattle

BKK - SEA

BKKSEA

Bangkok Suvarnabhumi

Sun 3/5

01:45-19:46

2 stops32h 01m

Seattle/Tacoma Intl

Mon 11/5

16:30-07:05

1 stop24h 35m

฿31,058
Fastest return journey

BangkokSeattle

BKK - SEA

BKKSEA

Bangkok Suvarnabhumi

Tue 5/5

10:50-19:15

1 stop22h 25m

Seattle/Tacoma Intl

Mon 25/5

01:15-09:45

1 stop18h 30m

฿33,016

Flights are sorted by cheapest return flights first.

Deals found on 22/3

Showing 1-10 of 48 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 19 hours 37 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 ฿25,945
China Airlines
China Airlines
From ฿23,987
เดลต้า
เดลต้า
From ฿27,282
Asiana Airlines
Asiana Airlines
From ฿21,872

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 24 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
9.0
Wonderful
Check prices

Boarding

9.0

Overall

9.0

Comfort

8.9

Entertainment

8.8

Crew

9.2

Food

8.7

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
9.0
Wonderful
STARLUX Airlines
9.0
Wonderful
Check prices

Boarding

9.0

Overall

9.0

Comfort

8.9

Entertainment

8.8

Crew

9.2

Food

8.7

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
1,387 reviews
STARLUX Airlines
9.0
Wonderful
Check prices

Boarding

9.0

Overall

9.0

Comfort

8.9

Entertainment

8.8

Crew

9.2

Food

8.7

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
9.0
Wonderful
Check prices

Boarding

9.0

Overall

9.0

Comfort

8.9

Entertainment

8.8

Crew

9.2

Food

8.7

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
8,322 reviews
STARLUX Airlines
9.0
Wonderful
Check prices

Boarding

9.0

Overall

9.0

Comfort

8.9

Entertainment

8.8

Crew

9.2

Food

8.7

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
971 reviews
STARLUX Airlines
9.0
Wonderful
Check prices

Boarding

9.0

Overall

9.0

Comfort

8.9

Entertainment

8.8

Crew

9.2

Food

8.7

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 ฿2,884, while return flights cost around ฿4,137.

  • How much is a return flight to Seattle?

    A return flight to Seattle will typically cost around ฿4,137, however they can be found for as little as ฿4,137.

  • 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 (18 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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