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฿16,617+ 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 18/9. Fares are subject to change and may not be available on all flights or dates of travel.
— SEA
29 Aug — 5 Sep1
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 30 July 2026.

Sat 12/902:35
BKK
-
SEA
1 stop22h 05m
Korean Air
Sun 20/912:50
SEA
-
BKK
1 stop18h 55m
Korean Air
Deal found 29/7฿25,428
Wed 9/902:35
BKK
-
SEA
1 stop22h 05m
Korean Air
Fri 18/912:50
SEA
-
BKK
1 stop18h 55m
Korean Air
Deal found 28/7฿25,495
Thu 3/901:35
BKK
-
SEA
1 stop27h 40m
Asiana Airlines
Fri 11/900:10
SEA
-
BKK
1 stop20h 30m
Asiana Airlines
Deal found 25/7฿25,596
Wed 9/909:50
BKK
-
SEA
1 stop38h 50m
Korean Air
Wed 16/912:50
SEA
-
BKK
1 stop22h 15m
Korean Air
Deal found 26/7฿25,763
Wed 9/902:35
BKK
-
SEA
1 stop22h 05m
Korean Air
Thu 17/912:50
SEA
-
BKK
1 stop18h 55m
Korean Air
Deal found 27/7฿25,797
Tue 20/1011:45
BKK
-
SEA
1 stop17h 30m
Asiana Airlines
Tue 27/1000:10
SEA
-
BKK
1 stop21h 05m
Asiana Airlines
Deal found 26/7฿25,897
Wed 26/802:35
BKK
-
SEA
1 stop25h 02m
เดลต้า
Wed 9/913:00
SEA
-
BKK
1 stop22h 05m
เดลต้า
Deal found 26/7฿25,931
Fri 16/1011:45
BKK
-
SEA
1 stop17h 30m
Asiana Airlines
Sun 18/1000:10
SEA
-
BKK
1 stop20h 30m
Asiana Airlines
Deal found 28/7฿25,964
Fri 28/809:50
BKK
-
SEA
1 stop17h 47m
เดลต้า
Fri 4/913:00
SEA
-
BKK
1 stop22h 05m
เดลต้า
Deal found 29/7฿26,065
Fri 16/1019:10
BKK
-
SEA
1 stop28h 55m
Cathay Pacific
Tue 20/1011:45
SEA
-
BKK
1 stop33h 20m
Cathay Pacific
Deal found 28/7฿26,098
Thu 27/807:25
DMK
-
SEA
1 stop26h 25m
Multiple Airlines
Tue 8/900:10
SEA
-
DMK
2 stops31h 10m
Multiple Airlines
Deal found 26/7฿36,819
Tue 25/807:25
DMK
-
SEA
1 stop26h 25m
Multiple Airlines
Mon 14/901:55
SEA
-
DMK
1 stop24h 45m
Multiple Airlines
Deal found 29/7฿38,126

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 30 July 2026.

Return from

฿25,428

One-way from

฿16,617

Popular in

August

Cheapest in

March

Average price

฿30,655
Korean Air
  • Korean Air
  • 12/9-20/9
  • 2 total stops
  • 41h 00m total
  • Bangkok to Seattle
Search Deals
Philippine Airlines
  • Philippine Airlines
  • 18/9
  • 1 total stop
  • 23h 45m total
  • Bangkok to Seattle
Search Deals
Highest demand for flights based on searches. 8% potential increase in price (฿2,758 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease (฿435 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 30 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
Fastest return journey

BangkokSeattle

BKK - SEA

BKKSEA

Bangkok Suvarnabhumi

Sat 3/10

09:35-14:25

1 stop18h 50m

Seattle/Tacoma Intl

Mon 19/10

19:25-09:35

2 stops24h 10m

฿27,774

BangkokSeattle

BKK - SEA

BKKSEA

Bangkok Suvarnabhumi

Mon 26/10

09:10-14:20

1 stop19h 10m

Seattle/Tacoma Intl

Tue 27/10

09:00-11:30

2 stops36h 30m

฿27,807

BangkokSeattle

BKK - SEA

BKKSEA

Bangkok Suvarnabhumi

Tue 15/9

09:35-16:14

2 stops44h 39m

Seattle/Tacoma Intl

Mon 2/11

15:40-05:10

1 stop22h 30m

฿27,874

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

฿27,908

BangkokSeattle

BKK - SEA

BKKSEA

Bangkok Suvarnabhumi

Sun 13/9

07:00-21:15

3 stops28h 15m

Seattle/Tacoma Intl

Sun 20/9

16:30-04:35

1 stop22h 05m

฿27,975

BangkokSeattle

BKK - SEA

BKKSEA

Bangkok Suvarnabhumi

Sun 4/10

09:35-14:25

1 stop18h 50m

Seattle/Tacoma Intl

Sun 18/10

18:43-09:35

2 stops24h 52m

฿28,142

BangkokSeattle

BKK - SEA

BKKSEA

Bangkok Suvarnabhumi

Fri 2/10

09:35-23:26

2 stops27h 51m

Seattle/Tacoma Intl

Tue 20/10

13:19-09:35

3 stops30h 16m

฿28,343

BangkokSeattle

BKK - SEA

BKKSEA

Bangkok Suvarnabhumi

Fri 16/10

15:45-11:35

2 stops33h 50m

Seattle/Tacoma Intl

Mon 19/10

20:29-09:35

3 stops47h 06m

฿28,846

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

฿29,013

BangkokSeattle

BKK - SEA

BKKSEA

Bangkok Suvarnabhumi

Wed 9/9

09:50-13:37

1 stop17h 47m

Seattle/Tacoma Intl

Wed 16/9

07:15-23:35

2 stops26h 20m

฿29,080

Flights are sorted by cheapest return flights first.

Deals found on 29/7

Showing 1-10 of 39 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 0 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 ฿26,644
Asiana Airlines
Asiana Airlines
From ฿22,461
Philippine Airlines
Philippine Airlines
From ฿21,616
เดลต้า
เดลต้า
From ฿30,635

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 83 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 30 July 2026.
Get a feel of what it's like to fly with EVA Air,China Airlines, 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.
EVA Air
8.5
Very Good
1,506 reviews
Check prices

Food

8.1

Entertainment

8.0

Comfort

8.3

Crew

8.7

Boarding

8.4

Overall

8.5

Reviews

1 / 20
10.0
Excellent

Anonymous,Mar 2026

TPE - SFO

Why when we’re about to board they suddenly announced the letters ABC to board first .. so what is the use us waiting at the door (with wheelchairs) ended up almost at the end to board and I can see people walking boarding first? Is this something new? You go by letters now?
EVA Air
8.5
Very Good
1,506 reviews
EVA Air
8.5
Very Good
1,506 reviews
Check prices

Food

8.1

Entertainment

8.0

Comfort

8.3

Crew

8.7

Boarding

8.4

Overall

8.5

Reviews

1 / 20
10.0
Excellent

Anonymous,Mar 2026

TPE - SFO

Why when we’re about to board they suddenly announced the letters ABC to board first .. so what is the use us waiting at the door (with wheelchairs) ended up almost at the end to board and I can see people walking boarding first? Is this something new? You go by letters now?
China Airlines
8.3
Very Good
838 reviews
EVA Air
8.5
Very Good
1,506 reviews
Check prices

Food

8.1

Entertainment

8.0

Comfort

8.3

Crew

8.7

Boarding

8.4

Overall

8.5

Reviews

1 / 20
10.0
Excellent

Anonymous,Mar 2026

TPE - SFO

Why when we’re about to board they suddenly announced the letters ABC to board first .. so what is the use us waiting at the door (with wheelchairs) ended up almost at the end to board and I can see people walking boarding first? Is this something new? You go by letters now?
Asiana Airlines
8.1
Very Good
555 reviews
EVA Air
8.5
Very Good
1,506 reviews
Check prices

Food

8.1

Entertainment

8.0

Comfort

8.3

Crew

8.7

Boarding

8.4

Overall

8.5

Reviews

1 / 20
10.0
Excellent

Anonymous,Mar 2026

TPE - SFO

Why when we’re about to board they suddenly announced the letters ABC to board first .. so what is the use us waiting at the door (with wheelchairs) ended up almost at the end to board and I can see people walking boarding first? Is this something new? You go by letters now?
เดลต้า
7.8
Good
8,495 reviews
EVA Air
8.5
Very Good
1,506 reviews
Check prices

Food

8.1

Entertainment

8.0

Comfort

8.3

Crew

8.7

Boarding

8.4

Overall

8.5

Reviews

1 / 20
10.0
Excellent

Anonymous,Mar 2026

TPE - SFO

Why when we’re about to board they suddenly announced the letters ABC to board first .. so what is the use us waiting at the door (with wheelchairs) ended up almost at the end to board and I can see people walking boarding first? Is this something new? You go by letters now?
Philippine Airlines
7.3
Good
1,012 reviews
EVA Air
8.5
Very Good
1,506 reviews
Check prices

Food

8.1

Entertainment

8.0

Comfort

8.3

Crew

8.7

Boarding

8.4

Overall

8.5

Reviews

1 / 20
10.0
Excellent

Anonymous,Mar 2026

TPE - SFO

Why when we’re about to board they suddenly announced the letters ABC to board first .. so what is the use us waiting at the door (with wheelchairs) ended up almost at the end to board and I can see people walking boarding first? Is this something new? You go by letters now?

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 ฿5,977, while return flights cost around ฿4,248.

  • How much is a return flight to Seattle?

    A return flight to Seattle will typically cost around ฿4,248, however they can be found for as little as ฿4,248.

  • 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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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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