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฿16,933+ 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 22/10. Fares are subject to change and may not be available on all flights or dates of travel.
— SEA
18 Aug — 25 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 19 July 2026.

Wed 14/1002:35
BKK
-
SEA
1 stop22h 05m
Korean Air
Thu 5/1111:00
SEA
-
BKK
1 stop19h 30m
Korean Air
Deal found 19/7฿25,501
Tue 25/821:40
BKK
-
SEA
1 stop27h 20m
Korean Air
Sat 29/813:20
SEA
-
BKK
1 stop18h 25m
Korean Air
Deal found 16/7฿25,602
Thu 10/911:45
BKK
-
SEA
1 stop17h 30m
Asiana Airlines
Tue 27/1000:10
SEA
-
BKK
1 stop21h 05m
Asiana Airlines
Deal found 17/7฿25,803
Thu 22/1011:45
BKK
-
SEA
1 stop17h 30m
Asiana Airlines
Thu 5/1100:10
SEA
-
BKK
1 stop20h 05m
Asiana Airlines
Deal found 18/7฿25,837
Tue 20/1009:50
BKK
-
SEA
1 stop17h 24m
เดลต้า
Wed 28/1013:40
SEA
-
BKK
1 stop21h 05m
เดลต้า
Deal found 18/7฿25,904
Tue 20/1011:45
BKK
-
SEA
1 stop17h 30m
Asiana Airlines
Tue 27/1000:10
SEA
-
BKK
1 stop21h 05m
Asiana Airlines
Deal found 15/7฿25,938
Fri 28/809:50
BKK
-
SEA
1 stop17h 47m
เดลต้า
Mon 31/813:05
SEA
-
BKK
1 stop34h 30m
เดลต้า
Deal found 15/7฿26,005
Fri 28/821:40
BKK
-
SEA
1 stop29h 57m
เดลต้า
Fri 4/913:00
SEA
-
BKK
1 stop18h 45m
เดลต้า
Deal found 14/7฿26,072
Tue 6/1021:40
BKK
-
SEA
1 stop27h 00m
Korean Air
Thu 15/1012:50
SEA
-
BKK
1 stop22h 15m
Korean Air
Deal found 18/7฿26,106
Sun 18/1023:30
BKK
-
SEA
1 stop25h 10m
Korean Air
Mon 9/1111:00
SEA
-
BKK
1 stop19h 30m
Korean Air
Deal found 16/7฿26,139
Thu 27/807:25
DMK
-
SEA
1 stop23h 10m
Multiple Airlines
Tue 8/901:15
SEA
-
DMK
1 stop28h 15m
Multiple Airlines
Deal found 17/7฿38,436
Thu 15/1014:35
DMK
-
SEA
2 stops18h 45m
Multiple Airlines
Wed 4/1100:10
SEA
-
DMK
1 stop22h 25m
Multiple Airlines
Deal found 19/7฿42,165

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 19 July 2026.

Return from

฿25,501

One-way from

฿16,933

Popular in

August

Cheapest in

March

Average price

฿30,877
Korean Air
  • Korean Air
  • 14/10-5/11
  • 2 total stops
  • 41h 35m total
  • Bangkok to Seattle
Search Deals
22/10
  • 22/10
  • 2 total stops
  • 32h 42m total
  • Bangkok to Seattle
Search Deals
Highest demand for flights based on searches. 8% potential increase in price (฿2,572 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease (฿442 potential savings vs. average return price).
Search Deals
Average for return flights in July 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 19 July 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 6/10

21:40-10:40

1 stop27h 00m

Seattle/Tacoma Intl

Thu 15/10

12:50-01:05

1 stop22h 15m

฿26,307

BangkokSeattle

BKK - SEA

BKKSEA

Bangkok Suvarnabhumi

Mon 26/10

10:55-19:10

1 stop22h 15m

Seattle/Tacoma Intl

Tue 27/10

01:10-16:45

1 stop25h 35m

฿26,677

BangkokSeattle

BKK - SEA

BKKSEA

Bangkok Suvarnabhumi

Thu 15/10

11:45-15:15

1 stop17h 30m

Seattle/Tacoma Intl

Fri 6/11

00:10-22:00

1 stop30h 50m

฿27,214

BangkokSeattle

BKK - SEA

BKKSEA

Bangkok Suvarnabhumi

Tue 20/10

09:35-14:25

1 stop18h 50m

Seattle/Tacoma Intl

Wed 28/10

08:50-11:30

2 stops36h 40m

฿28,021

BangkokSeattle

BKK - SEA

BKKSEA

Bangkok Suvarnabhumi

Mon 26/10

09:10-20:49

2 stops25h 39m

Seattle/Tacoma Intl

Wed 28/10

08:50-11:30

2 stops36h 40m

฿28,626

BangkokSeattle

BKK - SEA

BKKSEA

Bangkok Suvarnabhumi

Tue 6/10

09:35-21:01

2 stops25h 26m

Seattle/Tacoma Intl

Thu 15/10

08:46-23:55

2 stops25h 09m

฿28,626

BangkokSeattle

BKK - SEA

BKKSEA

Bangkok Suvarnabhumi

Wed 7/10

09:35-21:01

2 stops25h 26m

Seattle/Tacoma Intl

Sat 17/10

14:55-09:35

2 stops28h 40m

฿28,726

BangkokSeattle

BKK - SEA

BKKSEA

Bangkok Suvarnabhumi

Wed 21/10

02:35-10:40

1 stop22h 05m

Seattle/Tacoma Intl

Fri 6/11

21:35-00:45

2 stops36h 10m

฿29,062
Fastest return journey

BangkokSeattle

BKK - SEA

BKKSEA

Bangkok Suvarnabhumi

Tue 1/12

09:40-11:56

1 stop17h 16m

Seattle/Tacoma Intl

Mon 28/12

07:20-23:20

2 stops25h 00m

฿29,096

BangkokSeattle

DMK - SEA

DMKSEA

Bangkok Don Mueang Intl

Thu 22/10

12:10-13:25

1 stop39h 15m

Seattle/Tacoma Intl

Sun 25/10

17:05-20:15

1 stop37h 10m

฿52,245

Flights are sorted by cheapest return flights first.

Deals found on 14/7

Showing 1-10 of 40 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 19 hours 1 minute. 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 ฿26,720
Asiana Airlines
Asiana Airlines
From ฿22,525
Philippine Airlines
Philippine Airlines
From ฿21,678
เดลต้า
เดลต้า
From ฿30,723

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 84 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 19 July 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
8.8
Very Good
Check prices

Boarding

8.9

Comfort

8.9

Food

8.6

Crew

9.1

Entertainment

8.7

Overall

8.8

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
8.8
Very Good
STARLUX Airlines
8.8
Very Good
Check prices

Boarding

8.9

Comfort

8.9

Food

8.6

Crew

9.1

Entertainment

8.7

Overall

8.8

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
1,501 reviews
STARLUX Airlines
8.8
Very Good
Check prices

Boarding

8.9

Comfort

8.9

Food

8.6

Crew

9.1

Entertainment

8.7

Overall

8.8

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
553 reviews
STARLUX Airlines
8.8
Very Good
Check prices

Boarding

8.9

Comfort

8.9

Food

8.6

Crew

9.1

Entertainment

8.7

Overall

8.8

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
8,477 reviews
STARLUX Airlines
8.8
Very Good
Check prices

Boarding

8.9

Comfort

8.9

Food

8.6

Crew

9.1

Entertainment

8.7

Overall

8.8

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
1,011 reviews
STARLUX Airlines
8.8
Very Good
Check prices

Boarding

8.9

Comfort

8.9

Food

8.6

Crew

9.1

Entertainment

8.7

Overall

8.8

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 ฿5,819, while return flights cost around ฿4,260.

  • How much is a return flight to Seattle?

    A return flight to Seattle will typically cost around ฿4,260, however they can be found for as little as ฿4,260.

  • 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 24 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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