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฿16,994+ 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 26/10. Fares are subject to change and may not be available on all flights or dates of travel.
— SEA
29 Jul — 5 Aug1
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 29 June 2026.

Tue 6/1009:50
BKK
-
SEA
1 stop17h 24m
เดลต้า
Thu 15/1013:00
SEA
-
BKK
1 stop20h 35m
เดลต้า
Deal found 25/6฿25,574
Wed 7/1023:30
BKK
-
SEA
1 stop27h 44m
เดลต้า
Wed 21/1013:00
SEA
-
BKK
1 stop22h 05m
เดลต้า
Deal found 29/6฿25,674
Mon 19/1002:35
BKK
-
SEA
1 stop22h 05m
Korean Air
Wed 28/1012:00
SEA
-
BKK
1 stop21h 20m
Korean Air
Deal found 28/6฿25,707
Sun 13/1212:20
BKK
-
SEA
1 stop16h 35m
Asiana Airlines
Sat 26/1200:10
SEA
-
BKK
1 stop20h 05m
Asiana Airlines
Deal found 27/6฿25,973
Tue 13/1021:40
BKK
-
SEA
1 stop27h 00m
Korean Air
Wed 14/1012:50
SEA
-
BKK
1 stop20h 45m
Korean Air
Deal found 24/6฿26,139
Fri 21/809:50
BKK
-
SEA
1 stop17h 47m
เดลต้า
Thu 3/913:00
SEA
-
BKK
1 stop18h 45m
เดลต้า
Deal found 26/6฿26,173
Wed 19/809:50
BKK
-
SEA
1 stop17h 47m
เดลต้า
Thu 27/813:05
SEA
-
BKK
1 stop20h 30m
เดลต้า
Deal found 24/6฿26,306
Sat 4/707:00
BKK
-
SEA
2 stops40h 22m
United Airlines
Sun 5/716:30
SEA
-
BKK
1 stop22h 05m
United Airlines
Deal found 25/6฿26,439
Mon 6/709:35
BKK
-
SEA
2 stops51h 35m
United Airlines
Sat 18/716:30
SEA
-
BKK
1 stop22h 05m
United Airlines
Deal found 26/6฿26,605
Tue 14/707:00
BKK
-
SEA
2 stops23h 20m
United Airlines
Sat 25/716:30
SEA
-
BKK
1 stop22h 05m
United Airlines
Deal found 26/6฿26,638
Mon 6/713:40
DMK
-
SEA
2 stops20h 05m
Multiple Airlines
Sat 18/701:55
SEA
-
DMK
2 stops31h 10m
Multiple Airlines
Deal found 26/6฿32,924
Sun 5/707:30
DMK
-
SEA
2 stops26h 20m
Multiple Airlines
Fri 17/702:10
SEA
-
DMK
2 stops30h 55m
Multiple Airlines
Deal found 26/6฿33,389

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 29 June 2026.

Return from

฿25,574

One-way from

฿16,994

Popular in

August

Cheapest in

March

Average price

฿29,432
เดลต้า
  • เดลต้า
  • 6/10-15/10
  • 2 total stops
  • 37h 59m total
  • Bangkok to Seattle
Search Deals
แอร์แคนาดา
  • แอร์แคนาดา
  • 26/10
  • 2 total stops
  • 32h 37m total
  • Bangkok to Seattle
Search Deals
Highest demand for flights based on searches. 9% potential increase in price (฿3,028 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease (฿423 potential savings vs. average return price).
Search Deals
Average for return flights in June 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 29 June 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 22/10

23:30-13:14

1 stop27h 44m

Seattle/Tacoma Intl

Fri 6/11

13:00-00:45

1 stop20h 45m

฿25,574
Fastest return journey

BangkokSeattle

BKK - SEA

BKKSEA

Bangkok Suvarnabhumi

Tue 6/10

09:50-13:14

1 stop17h 24m

Seattle/Tacoma Intl

Thu 15/10

13:00-23:35

1 stop20h 35m

฿25,607

BangkokSeattle

BKK - SEA

BKKSEA

Bangkok Suvarnabhumi

Wed 19/8

09:50-13:37

1 stop17h 47m

Seattle/Tacoma Intl

Thu 27/8

13:05-23:35

1 stop20h 30m

฿26,306

BangkokSeattle

BKK - SEA

BKKSEA

Bangkok Suvarnabhumi

Tue 1/12

12:20-13:55

1 stop16h 35m

Seattle/Tacoma Intl

Sun 27/12

00:10-22:00

1 stop30h 50m

฿26,805

BangkokSeattle

BKK - SEA

BKKSEA

Bangkok Suvarnabhumi

Wed 7/10

09:35-14:25

1 stop18h 50m

Seattle/Tacoma Intl

Sat 17/10

19:25-09:35

2 stops24h 10m

฿26,971

BangkokSeattle

BKK - SEA

BKKSEA

Bangkok Suvarnabhumi

Tue 6/10

09:35-09:59

2 stops38h 24m

Seattle/Tacoma Intl

Fri 9/10

16:30-22:15

1 stop39h 45m

฿27,037

BangkokSeattle

BKK - SEA

BKKSEA

Bangkok Suvarnabhumi

Thu 24/9

15:45-01:15

2 stops23h 30m

Seattle/Tacoma Intl

Sun 27/9

16:30-04:35

1 stop22h 05m

฿27,204

BangkokSeattle

DMK - SEA

DMKSEA

Bangkok Don Mueang Intl

Thu 20/8

09:55-19:50

2 stops23h 55m

Seattle/Tacoma Intl

Wed 26/8

01:15-16:40

1 stop25h 25m

฿45,727

BangkokSeattle

DMK - SEA

DMKSEA

Bangkok Don Mueang Intl

Wed 29/7

09:55-19:50

2 stops23h 55m

Seattle/Tacoma Intl

Sat 30/1

00:10-13:35

1 stop22h 25m

฿50,350

BangkokSeattle

DMK - SEA

DMKSEA

Bangkok Don Mueang Intl

Thu 24/9

12:10-13:25

1 stop39h 15m

Seattle/Tacoma Intl

Sun 27/9

17:15-11:10

1 stop27h 55m

฿51,747

Flights are sorted by cheapest return flights first.

Deals found on 28/6

Showing 1-10 of 36 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

How long is the flight to Seattle?

On average, a flight from Bangkok to Seattle takes 18 hours 18 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 ฿26,448
Asiana Airlines
Asiana Airlines
From ฿22,296
Philippine Airlines
Philippine Airlines
From ฿21,457
เดลต้า
เดลต้า
From ฿30,410

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).

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 11 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.

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 29 June 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

8.7

Comfort

8.9

Boarding

8.9

Entertainment

8.8

Overall

8.9

Crew

9.2

Reviews

1 / 14
8.0
Excellent

Andrew,Jun 2026

SEA - TPE

Great value for a coach ticket. Fantastic leg room for a 6’3”” man.
STARLUX Airlines
8.9
Very Good
STARLUX Airlines
8.9
Very Good
Check prices

Food

8.7

Comfort

8.9

Boarding

8.9

Entertainment

8.8

Overall

8.9

Crew

9.2

Reviews

1 / 14
8.0
Excellent

Andrew,Jun 2026

SEA - TPE

Great value for a coach ticket. Fantastic leg room for a 6’3”” man.
EVA Air
8.5
Very Good
1,482 reviews
STARLUX Airlines
8.9
Very Good
Check prices

Food

8.7

Comfort

8.9

Boarding

8.9

Entertainment

8.8

Overall

8.9

Crew

9.2

Reviews

1 / 14
8.0
Excellent

Andrew,Jun 2026

SEA - TPE

Great value for a coach ticket. Fantastic leg room for a 6’3”” man.
Asiana Airlines
8.1
Very Good
550 reviews
STARLUX Airlines
8.9
Very Good
Check prices

Food

8.7

Comfort

8.9

Boarding

8.9

Entertainment

8.8

Overall

8.9

Crew

9.2

Reviews

1 / 14
8.0
Excellent

Andrew,Jun 2026

SEA - TPE

Great value for a coach ticket. Fantastic leg room for a 6’3”” man.
เดลต้า
7.8
Good
8,450 reviews
STARLUX Airlines
8.9
Very Good
Check prices

Food

8.7

Comfort

8.9

Boarding

8.9

Entertainment

8.8

Overall

8.9

Crew

9.2

Reviews

1 / 14
8.0
Excellent

Andrew,Jun 2026

SEA - TPE

Great value for a coach ticket. Fantastic leg room for a 6’3”” man.
Philippine Airlines
7.3
Good
1,005 reviews
STARLUX Airlines
8.9
Very Good
Check prices

Food

8.7

Comfort

8.9

Boarding

8.9

Entertainment

8.8

Overall

8.9

Crew

9.2

Reviews

1 / 14
8.0
Excellent

Andrew,Jun 2026

SEA - TPE

Great value for a coach ticket. Fantastic leg room for a 6’3”” man.

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 ฿5,760, while return flights cost around ฿4,217.

  • How much is a return flight to Seattle?

    A return flight to Seattle will typically cost around ฿4,217, however they can be found for as little as ฿4,217.

  • 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 16 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. Serene 3-bedroom house perfect for relaxing stays in SeaTac, Burien, Seattle is the closest property to Seattle/Tacoma Intl (0.0 km away from Seattle/Tacoma Intl).

See more FAQs

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When you search for this flight to Seattle, Cheapflights searches on 900+ travel sites to save you time finding great flight deals online. Additionally, we offer filter features so you can choose a preferred cabin class or airline, see different price ranges, and much more so you can book the best flight for you.

Why should you use Cheapflights to find cheap flight tickets to Seattle?

By finding flights from multiple airlines and providers at completely no cost, Cheapflights helps millions of users like you annually find the best flights to Seattle.

Can Cheapflights find flights to Seattle with no change fees?

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.

Can Cheapflights notify me if prices for flights to Seattle become cheaper?

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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