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฿16,267+ 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 26/4. Fares are subject to change and may not be available on all flights or dates of travel.
— SEA
18 May — 25 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 18 April 2026.

Mon 1/621:40
BKK
-
SEA
1 stop31h 35m
Multiple Airlines
Sun 7/600:10
SEA
-
BKK
1 stop33h 25m
Multiple Airlines
Deal found 17/4฿19,751
Tue 20/1009:35
BKK
-
SEA
1 stop18h 50m
ANA
Tue 10/1115:40
SEA
-
BKK
1 stop23h 50m
ANA
Deal found 16/4฿22,243
Wed 16/907:00
BKK
-
SEA
2 stops23h 15m
ANA
Wed 21/1016:30
SEA
-
BKK
1 stop23h 25m
ANA
Deal found 14/4฿22,787
Thu 15/1015:45
BKK
-
SEA
2 stops44h 11m
United Airlines
Sun 18/1005:15
SEA
-
BKK
2 stops38h 20m
United Airlines
Deal found 15/4฿22,914
Tue 15/909:35
BKK
-
SEA
1 stop18h 50m
ANA
Tue 20/1016:30
SEA
-
BKK
1 stop33h 00m
ANA
Deal found 14/4฿22,946
Mon 15/621:35
BKK
-
SEA
1 stop30h 50m
ANA
Sun 10/110:35
SEA
-
BKK
2 stops28h 55m
ANA
Deal found 17/4฿23,234
Mon 1/613:50
BKK
-
SEA
1 stop33h 10m
Multiple Airlines
Wed 16/923:10
SEA
-
BKK
1 stop33h 30m
Multiple Airlines
Deal found 16/4฿23,330
Thu 10/909:35
BKK
-
SEA
1 stop18h 50m
United Airlines
Sat 12/907:06
SEA
-
BKK
2 stops36h 29m
United Airlines
Deal found 16/4฿23,618
Mon 15/615:45
BKK
-
SEA
2 stops23h 44m
United Airlines
Sun 10/115:45
SEA
-
BKK
2 stops28h 40m
United Airlines
Deal found 17/4฿24,257
Sat 1/813:40
DMK
-
SEA
2 stops20h 05m
Multiple Airlines
Sun 13/923:10
SEA
-
DMK
1 stop22h 15m
Multiple Airlines
Deal found 16/4฿36,912
Tue 4/813:40
DMK
-
SEA
2 stops20h 05m
Multiple Airlines
Sun 13/923:10
SEA
-
DMK
1 stop22h 15m
Multiple Airlines
Deal found 16/4฿37,616
Thu 15/1021:45
DMK
-
SEA
2 stops25h 00m
Multiple Airlines
Sun 18/1023:10
SEA
-
DMK
1 stop22h 15m
Multiple Airlines
Deal found 15/4฿38,319

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 18 April 2026.

Return from

฿19,751

One-way from

฿16,267

Popular in

July

Cheapest in

March

Average price

฿27,548
1/6-7/6
  • 1/6-7/6
  • 2 total stops
  • 65h 00m total
  • Bangkok to Seattle
Search Deals
Qatar Airways
  • Qatar Airways
  • 21/4
  • 1 total stop
  • 25h 35m total
  • Bangkok to Seattle
Search Deals
Highest demand for flights based on searches. 13% potential increase in price (฿4,204 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease (฿678 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 18 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

Mon 15/6

21:35-14:25

1 stop30h 50m

Seattle/Tacoma Intl

Sun 10/1

10:35-06:30

2 stops28h 55m

฿23,234

BangkokSeattle

BKK - SEA

BKKSEA

Bangkok Suvarnabhumi

Thu 10/9

09:35-14:25

1 stop18h 50m

Seattle/Tacoma Intl

Sat 12/9

10:54-09:35

2 stops32h 41m

฿23,618

BangkokSeattle

BKK - SEA

BKKSEA

Bangkok Suvarnabhumi

Mon 15/6

15:45-01:29

2 stops23h 44m

Seattle/Tacoma Intl

Sun 10/1

15:45-11:25

2 stops28h 40m

฿24,257

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

฿25,184

BangkokSeattle

BKK - SEA

BKKSEA

Bangkok Suvarnabhumi

Thu 4/6

02:35-13:25

1 stop24h 50m

Seattle/Tacoma Intl

Sat 5/9

13:00-21:45

1 stop18h 45m

฿25,951

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

฿25,951
Fastest return journey

BangkokSeattle

BKK - SEA

BKKSEA

Bangkok Suvarnabhumi

Fri 5/6

11:45-15:15

1 stop17h 30m

Seattle/Tacoma Intl

Fri 4/9

00:10-10:40

1 stop20h 30m

฿26,046

BangkokSeattle

BKK - SEA

BKKSEA

Bangkok Suvarnabhumi

Wed 14/10

09:50-13:14

1 stop17h 24m

Seattle/Tacoma Intl

Wed 4/11

13:00-13:25

1 stop33h 25m

฿26,334

BangkokSeattle

BKK - SEA

BKKSEA

Bangkok Suvarnabhumi

Tue 13/10

15:45-19:08

2 stops41h 23m

Seattle/Tacoma Intl

Mon 2/11

06:57-05:10

2 stops31h 13m

฿27,868

BangkokSeattle

BKK - SEA

BKKSEA

Bangkok Suvarnabhumi

Wed 10/6

21:40-11:00

1 stop27h 20m

Seattle/Tacoma Intl

Fri 10/7

13:20-01:05

1 stop21h 45m

฿27,932

Flights are sorted by cheapest return flights first.

Deals found on 15/4

Showing 1-10 of 42 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 2 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 ฿25,416
เดลต้า
เดลต้า
From ฿26,725
China Airlines
China Airlines
From ฿23,497
Asiana Airlines
Asiana Airlines
From ฿21,426

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 18 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

Food

8.6

Entertainment

8.8

Boarding

9.0

Overall

8.9

Comfort

8.9

Crew

9.2

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

Food

8.6

Entertainment

8.8

Boarding

9.0

Overall

8.9

Comfort

8.9

Crew

9.2

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
1,417 reviews
STARLUX Airlines
8.9
Very Good
Check prices

Food

8.6

Entertainment

8.8

Boarding

9.0

Overall

8.9

Comfort

8.9

Crew

9.2

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
8.0
Very Good
518 reviews
STARLUX Airlines
8.9
Very Good
Check prices

Food

8.6

Entertainment

8.8

Boarding

9.0

Overall

8.9

Comfort

8.9

Crew

9.2

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
8,410 reviews
STARLUX Airlines
8.9
Very Good
Check prices

Food

8.6

Entertainment

8.8

Boarding

9.0

Overall

8.9

Comfort

8.9

Crew

9.2

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

Food

8.6

Entertainment

8.8

Boarding

9.0

Overall

8.9

Comfort

8.9

Crew

9.2

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 ฿2,825, while return flights cost around ฿4,052.

  • How much is a return flight to Seattle?

    A return flight to Seattle will typically cost around ฿4,052, however they can be found for as little as ฿4,052.

  • 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 0 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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