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฿16,760+ 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 14/5. Fares are subject to change and may not be available on all flights or dates of travel.
— SEA
31 May — 7 Jun1
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 1 May 2026.

Sun 20/923:30
BKK
-
SEA
1 stop29h 45m
Multiple Airlines
Thu 29/1000:10
SEA
-
BKK
1 stop23h 15m
Multiple Airlines
Deal found 30/4฿18,195
Thu 3/923:30
BKK
-
SEA
1 stop29h 45m
Multiple Airlines
Sun 6/900:10
SEA
-
BKK
1 stop31h 35m
Multiple Airlines
Deal found 26/4฿20,054
Wed 2/923:30
BKK
-
SEA
1 stop29h 45m
Multiple Airlines
Sun 6/900:10
SEA
-
BKK
1 stop34h 55m
Multiple Airlines
Deal found 26/4฿21,162
Sun 14/602:35
BKK
-
SEA
1 stop26h 40m
Multiple Airlines
Fri 26/600:10
SEA
-
BKK
1 stop33h 25m
Multiple Airlines
Deal found 30/4฿21,619
Fri 4/909:50
BKK
-
SEA
1 stop19h 25m
Multiple Airlines
Mon 28/900:10
SEA
-
BKK
1 stop34h 55m
Multiple Airlines
Deal found 29/4฿21,717
Tue 6/1011:45
BKK
-
SEA
1 stop17h 30m
Multiple Airlines
Tue 13/1000:10
SEA
-
BKK
1 stop34h 55m
Multiple Airlines
Deal found 27/4฿23,347
Thu 18/602:35
BKK
-
SEA
1 stop26h 40m
Multiple Airlines
Sun 19/700:10
SEA
-
BKK
1 stop34h 55m
Multiple Airlines
Deal found 26/4฿23,901
Sun 14/602:35
BKK
-
SEA
1 stop26h 40m
Multiple Airlines
Sun 28/600:10
SEA
-
BKK
1 stop33h 25m
Multiple Airlines
Deal found 27/4฿25,043
Tue 8/911:45
BKK
-
SEA
1 stop17h 30m
Asiana Airlines
Tue 20/1000:10
SEA
-
BKK
1 stop20h 30m
Asiana Airlines
Deal found 28/4฿25,401
Sat 24/1002:35
BKK
-
SEA
1 stop21h 25m
Korean Air
Sun 1/1111:00
SEA
-
BKK
1 stop35h 25m
Korean Air
Deal found 29/4฿25,629
Sun 13/1223:55
BKK
-
SEA
1 stop29h 00m
Asiana Airlines
Mon 28/1200:10
SEA
-
BKK
1 stop30h 50m
Asiana Airlines
Deal found 27/4฿25,727
Mon 14/1212:20
BKK
-
SEA
1 stop16h 35m
Asiana Airlines
Sun 27/1200:10
SEA
-
BKK
1 stop30h 50m
Asiana Airlines
Deal found 28/4฿25,760

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 1 May 2026.

Return from

฿18,195

One-way from

฿16,760

Popular in

July

Cheapest in

March

Average price

฿27,260
20/9-29/10
  • 20/9-29/10
  • 2 total stops
  • 53h 00m total
  • Bangkok to Seattle
Search Deals
14/5
  • 14/5
  • 1 total stop
  • 19h 35m total
  • Bangkok to Seattle
Search Deals
Highest demand for flights based on searches. 12% potential increase in price (฿3,988 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease (฿638 potential savings vs. average return price).
Search Deals
Average for return flights in May 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 1 May 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

Thu 18/6

09:50-11:00

1 stop39h 10m

Seattle/Tacoma Intl

Wed 29/7

13:20-13:35

1 stop34h 15m

฿26,445

BangkokSeattle

BKK - SEA

BKKSEA

Bangkok Suvarnabhumi

Tue 6/10

02:35-10:40

1 stop22h 05m

Seattle/Tacoma Intl

Sat 17/10

12:50-01:05

1 stop22h 15m

฿26,803

BangkokSeattle

BKK - SEA

BKKSEA

Bangkok Suvarnabhumi

Tue 16/6

15:45-01:13

2 stops23h 28m

Seattle/Tacoma Intl

Mon 27/7

07:00-09:35

2 stops36h 35m

฿28,597

BangkokSeattle

BKK - SEA

BKKSEA

Bangkok Suvarnabhumi

Wed 9/9

21:40-10:40

1 stop27h 00m

Seattle/Tacoma Intl

Tue 10/11

11:00-21:30

1 stop19h 30m

฿28,629

BangkokSeattle

BKK - SEA

BKKSEA

Bangkok Suvarnabhumi

Tue 6/10

07:00-14:24

2 stops21h 24m

Seattle/Tacoma Intl

Wed 7/10

17:20-23:55

2 stops40h 35m

฿29,021

BangkokSeattle

BKK - SEA

BKKSEA

Bangkok Suvarnabhumi

Thu 3/9

01:20-15:15

1 stop27h 55m

Seattle/Tacoma Intl

Mon 9/11

00:10-11:15

1 stop20h 05m

฿29,347

BangkokSeattle

BKK - SEA

BKKSEA

Bangkok Suvarnabhumi

Tue 6/10

07:00-21:15

3 stops28h 15m

Seattle/Tacoma Intl

Thu 15/10

16:30-04:35

1 stop22h 05m

฿29,705

BangkokSeattle

BKK - SEA

BKKSEA

Bangkok Suvarnabhumi

Thu 3/9

02:35-13:37

1 stop25h 02m

Seattle/Tacoma Intl

Fri 13/11

13:00-00:45

1 stop20h 45m

฿30,455

BangkokSeattle

BKK - SEA

BKKSEA

Bangkok Suvarnabhumi

Sun 14/6

02:30-14:45

1 stop26h 15m

Seattle/Tacoma Intl

Sat 20/6

16:25-06:20

1 stop23h 55m

฿31,857
Fastest return journey

BangkokSeattle

BKK - SEA

BKKSEA

Bangkok Suvarnabhumi

Thu 9/7

13:20-19:45

1 stop20h 25m

Seattle/Tacoma Intl

Mon 7/9

01:55-12:10

1 stop20h 15m

฿32,086

Flights are sorted by cheapest return flights first.

Deals found on 30/4

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?

To ensure you get the cheapest price possible for a flight to Seattle, you should look to book at least 73 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 28 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 ฿25,932
เดลต้า
เดลต้า
From ฿27,268
China Airlines
China Airlines
From ฿21,769
Asiana Airlines
Asiana Airlines
From ฿21,861

What are the cheapest airlines that fly to Seattle?

The cheapest airlines flying from Bangkok to Seattle are Philippine Airlines, China Airlines and Asiana 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 1 May 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

Overall

8.9

Entertainment

8.8

Boarding

8.9

Comfort

8.9

Crew

9.2

Food

8.6

Reviews

1 / 12
10.0
Excellent

ember j,Apr 2026

TPE - ONT

Amazing how an airline can elevate service by just modernizing structures such as the massage chairs in the boarding areas to the massive airbus with the rolls Royce engines with the electrochromatic windows ! And not to mention the flawless service of the aircrew even with the language difference. I’ll definitely fly with starlux again
STARLUX Airlines
8.9
Very Good
STARLUX Airlines
8.9
Very Good
Check prices

Overall

8.9

Entertainment

8.8

Boarding

8.9

Comfort

8.9

Crew

9.2

Food

8.6

Reviews

1 / 12
10.0
Excellent

ember j,Apr 2026

TPE - ONT

Amazing how an airline can elevate service by just modernizing structures such as the massage chairs in the boarding areas to the massive airbus with the rolls Royce engines with the electrochromatic windows ! And not to mention the flawless service of the aircrew even with the language difference. I’ll definitely fly with starlux again
EVA Air
8.5
Very Good
1,435 reviews
STARLUX Airlines
8.9
Very Good
Check prices

Overall

8.9

Entertainment

8.8

Boarding

8.9

Comfort

8.9

Crew

9.2

Food

8.6

Reviews

1 / 12
10.0
Excellent

ember j,Apr 2026

TPE - ONT

Amazing how an airline can elevate service by just modernizing structures such as the massage chairs in the boarding areas to the massive airbus with the rolls Royce engines with the electrochromatic windows ! And not to mention the flawless service of the aircrew even with the language difference. I’ll definitely fly with starlux again
Asiana Airlines
8.1
Very Good
524 reviews
STARLUX Airlines
8.9
Very Good
Check prices

Overall

8.9

Entertainment

8.8

Boarding

8.9

Comfort

8.9

Crew

9.2

Food

8.6

Reviews

1 / 12
10.0
Excellent

ember j,Apr 2026

TPE - ONT

Amazing how an airline can elevate service by just modernizing structures such as the massage chairs in the boarding areas to the massive airbus with the rolls Royce engines with the electrochromatic windows ! And not to mention the flawless service of the aircrew even with the language difference. I’ll definitely fly with starlux again
เดลต้า
7.9
Good
8,463 reviews
STARLUX Airlines
8.9
Very Good
Check prices

Overall

8.9

Entertainment

8.8

Boarding

8.9

Comfort

8.9

Crew

9.2

Food

8.6

Reviews

1 / 12
10.0
Excellent

ember j,Apr 2026

TPE - ONT

Amazing how an airline can elevate service by just modernizing structures such as the massage chairs in the boarding areas to the massive airbus with the rolls Royce engines with the electrochromatic windows ! And not to mention the flawless service of the aircrew even with the language difference. I’ll definitely fly with starlux again
Philippine Airlines
7.3
Good
994 reviews
STARLUX Airlines
8.9
Very Good
Check prices

Overall

8.9

Entertainment

8.8

Boarding

8.9

Comfort

8.9

Crew

9.2

Food

8.6

Reviews

1 / 12
10.0
Excellent

ember j,Apr 2026

TPE - ONT

Amazing how an airline can elevate service by just modernizing structures such as the massage chairs in the boarding areas to the massive airbus with the rolls Royce engines with the electrochromatic windows ! And not to mention the flawless service of the aircrew even with the language difference. I’ll definitely fly with starlux again

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 ฿2,883, while return flights cost around ฿4,135.

  • How much is a return flight to Seattle?

    A return flight to Seattle will typically cost around ฿4,135, however they can be found for as little as ฿4,135.

  • 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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Yes, we can. To see specific flights to Seattle with no change fees, users can toggle flexible booking options after using the search form above to find flights.

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Yes, Cheapflights offers price alerts on Seattle flights so you can book your flight when prices are ideal. Enable price alerts by clicking the bell icon next to the flight deals above and providing your email address where you want to receive the alerts.

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