Find flights
Airlines
Travel Guide

฿16,873+ 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 8/9. Fares are subject to change and may not be available on all flights or dates of travel.
— SEA
1 Jul — 8 Jul1
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 June 2026.

Thu 22/1009:50
BKK
-
SEA
1 stop38h 50m
Korean Air
Fri 6/1111:00
SEA
-
BKK
1 stop19h 30m
Korean Air
Deal found 29/5฿26,073
Sat 12/923:30
BKK
-
SEA
1 stop28h 07m
เดลต้า
Tue 13/1013:00
SEA
-
BKK
1 stop22h 05m
เดลต้า
Deal found 28/5฿26,529
Sun 13/902:35
BKK
-
SEA
1 stop25h 02m
เดลต้า
Tue 13/1013:00
SEA
-
BKK
1 stop22h 05m
เดลต้า
Deal found 28/5฿26,626
Mon 23/1121:30
BKK
-
SEA
1 stop29h 21m
เดลต้า
Mon 30/1113:00
SEA
-
BKK
1 stop33h 25m
เดลต้า
Deal found 30/5฿26,691
Fri 23/1021:40
BKK
-
SEA
1 stop27h 00m
Korean Air
Mon 26/1012:00
SEA
-
BKK
1 stop22h 45m
Korean Air
Deal found 28/5฿26,756
Mon 1/609:35
BKK
-
SEA
2 stops42h 55m
United Airlines
Tue 1/916:30
SEA
-
BKK
1 stop22h 05m
United Airlines
Deal found 28/5฿27,016
Mon 1/609:35
BKK
-
SEA
1 stop18h 50m
United Airlines
Wed 16/919:35
SEA
-
BKK
2 stops24h 00m
United Airlines
Deal found 29/5฿27,049
Mon 22/619:25
DMK
-
SEA
2 stops29h 35m
Multiple Airlines
Thu 20/823:10
SEA
-
DMK
1 stop22h 15m
Multiple Airlines
Deal found 1/6฿37,387
Tue 23/619:25
DMK
-
SEA
2 stops29h 35m
Multiple Airlines
Thu 20/823:10
SEA
-
DMK
1 stop22h 15m
Multiple Airlines
Deal found 1/6฿37,452
Mon 22/609:55
DMK
-
SEA
2 stops23h 20m
Multiple Airlines
Sun 28/601:15
SEA
-
DMK
2 stops22h 55m
Multiple Airlines
Deal found 1/6฿38,167
Wed 30/923:00
DMK
-
SEA
2 stops30h 15m
Multiple Airlines
Wed 7/1023:10
SEA
-
DMK
1 stop22h 15m
Multiple Airlines
Deal found 30/5฿40,020
Fri 4/912:20
DMK
-
SEA
2 stops21h 20m
Multiple Airlines
Tue 29/900:10
SEA
-
DMK
2 stops32h 30m
Multiple Airlines
Deal found 30/5฿41,386

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 June 2026.

Return from

฿26,073

One-way from

฿16,873

Popular in

July

Cheapest in

March

Average price

฿29,260
Korean Air
  • Korean Air
  • 22/10-6/11
  • 2 total stops
  • 58h 20m total
  • Bangkok to Seattle
Search Deals
STARLUX Airlines
  • STARLUX Airlines
  • 8/9
  • 1 total stop
  • 17h 00m total
  • Bangkok to Seattle
Search Deals
Highest demand for flights based on searches. 11% potential increase in price (฿3,784 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease (฿547 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 1 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

Wed 7/10

07:00-16:14

2 stops23h 14m

Seattle/Tacoma Intl

Sat 17/10

18:51-09:35

2 stops24h 44m

฿28,252

BangkokSeattle

BKK - SEA

BKKSEA

Bangkok Suvarnabhumi

Sun 14/6

15:45-01:29

2 stops23h 44m

Seattle/Tacoma Intl

Sat 5/9

12:15-09:35

2 stops31h 20m

฿28,414
Fastest return journey

BangkokSeattle

BKK - SEA

BKKSEA

Bangkok Suvarnabhumi

Mon 13/7

17:30-19:45

1 stop16h 15m

Seattle/Tacoma Intl

Sat 5/9

01:55-16:20

1 stop24h 25m

฿29,325

BangkokSeattle

BKK - SEA

BKKSEA

Bangkok Suvarnabhumi

Thu 22/10

21:40-10:40

1 stop27h 00m

Seattle/Tacoma Intl

Fri 6/11

07:20-13:25

2 stops39h 05m

฿30,235

BangkokSeattle

BKK - SEA

BKKSEA

Bangkok Suvarnabhumi

Wed 7/10

09:50-08:51

2 stops37h 01m

Seattle/Tacoma Intl

Sat 17/10

21:25-23:35

2 stops36h 10m

฿30,397

BangkokSeattle

BKK - SEA

BKKSEA

Bangkok Suvarnabhumi

Tue 30/6

09:15-12:25

1 stop41h 10m

Seattle/Tacoma Intl

Thu 3/9

16:25-06:20

1 stop23h 55m

฿31,340

BangkokSeattle

BKK - SEA

BKKSEA

Bangkok Suvarnabhumi

Fri 17/7

09:15-12:25

1 stop41h 10m

Seattle/Tacoma Intl

Wed 9/9

16:25-06:20

1 stop23h 55m

฿33,453

BangkokSeattle

BKK - SEA

BKKSEA

Bangkok Suvarnabhumi

Tue 14/7

09:35-14:25

1 stop18h 50m

Seattle/Tacoma Intl

Sat 25/7

19:05-09:35

2 stops24h 30m

฿33,681

BangkokSeattle

BKK - SEA

BKKSEA

Bangkok Suvarnabhumi

Tue 14/7

23:30-11:00

1 stop25h 30m

Seattle/Tacoma Intl

Mon 20/7

07:15-01:05

2 stops27h 50m

฿35,241

BangkokSeattle

BKK - SEA

BKKSEA

Bangkok Suvarnabhumi

Tue 14/7

02:35-11:00

1 stop22h 25m

Seattle/Tacoma Intl

Fri 11/9

07:20-23:35

2 stops26h 15m

฿35,241

Flights are sorted by cheapest return flights first.

Deals found on 1/6

Showing 1-10 of 39 resultsSorted by cheapest first
1
2
3
4

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 20 hours 7 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 Asiana Airlines, EVA Air and Philippine Airlines.

Asiana Airlines
Asiana Airlines
From ฿21,796
EVA Air
EVA Air
From ฿25,855
Philippine Airlines
Philippine Airlines
From ฿20,976
เดลต้า
เดลต้า
From ฿29,728

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).

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 67 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 1 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

Comfort

8.9

Boarding

8.9

Entertainment

8.8

Food

8.6

Crew

9.1

Overall

8.9

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

Comfort

8.9

Boarding

8.9

Entertainment

8.8

Food

8.6

Crew

9.1

Overall

8.9

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
1,465 reviews
STARLUX Airlines
8.9
Very Good
Check prices

Comfort

8.9

Boarding

8.9

Entertainment

8.8

Food

8.6

Crew

9.1

Overall

8.9

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
535 reviews
STARLUX Airlines
8.9
Very Good
Check prices

Comfort

8.9

Boarding

8.9

Entertainment

8.8

Food

8.6

Crew

9.1

Overall

8.9

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
8,401 reviews
STARLUX Airlines
8.9
Very Good
Check prices

Comfort

8.9

Boarding

8.9

Entertainment

8.8

Food

8.6

Crew

9.1

Overall

8.9

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
998 reviews
STARLUX Airlines
8.9
Very Good
Check prices

Comfort

8.9

Boarding

8.9

Entertainment

8.8

Food

8.6

Crew

9.1

Overall

8.9

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 ฿2,874, while return flights cost around ฿4,122.

  • How much is a return flight to Seattle?

    A return flight to Seattle will typically cost around ฿4,122, however they can be found for as little as ฿4,122.

  • 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 (18 hours 50 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

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Search flights to Seattle by cabin class

Find flights to Seattle, based on your preferred cabin class, be it economy, premium economy, business, or first class.
First Class flights to Seattle
Business Class flights to Seattle
Prem Economy Class flights to Seattle
Economy Class flights to Seattle

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travellers can enjoy low prices and a wide availability of flights to their desired destinations.

How does Cheapflights help users find flights to Seattle?

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.

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book With Flexibility

Our users can plan ahead with confidence and find flights with no change fees.

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.