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฿13,944+ 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 9/9. Fares are subject to change and may not be available on all flights or dates of travel.
— SEA
20 Jul — 27 Jul1
1 adult

Flights to Seattle in 2025

Find the latest flights to Seattle in 2025, 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 15 July 2025.

Return from

฿21,597

One-way from

฿13,944

Popular in

January

Cheapest in

November

Average price

฿35,639
Philippine Airlines
  • Philippine Airlines
  • 13/12-2/1
  • 2 total stops
  • 63h 20m total
  • Bangkok to Seattle
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Philippine Airlines
  • Philippine Airlines
  • 9/9
  • 1 total stop
  • 33h 55m total
  • Bangkok to Seattle
Search Deals
Highest demand for flights based on searches. 2% potential increase in price (฿24,862 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease (฿18,170 potential savings vs. average return price).
Search Deals
Average for return flights in July 2025
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Find flight deals to Seattle

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 15 July 2025.

Sat 13/1223:35BKK - SEA
1 stop34h 00mPhilippine Airlines
Fri 2/121:30SEA - BKK
1 stop29h 20mPhilippine Airlines
Deal found 14/7฿21,597
Thu 30/1009:40BKK - SEA
1 stop19h 15mMultiple Airlines
Mon 24/1100:10SEA - BKK
1 stop32h 10mMultiple Airlines
Deal found 13/7฿22,213
Fri 24/1002:40BKK - SEA
1 stop30h 40mChina Airlines
Tue 28/1001:10SEA - BKK
1 stop34h 25mChina Airlines
Deal found 13/7฿22,408
Wed 3/913:10BKK - SEA
1 stop17h 00mSTARLUX Airlines
Mon 1/1223:45SEA - BKK
1 stop25h 45mSTARLUX Airlines
Deal found 13/7฿23,511
Wed 29/1001:00BKK - SEA
1 stop23h 00mKorean Air
Tue 25/1111:00SEA - BKK
1 stop35h 15mKorean Air
Deal found 13/7฿25,878
Fri 24/1002:45DMK - SEA
1 stop23h 45mMultiple Airlines
Tue 28/1000:10SEA - DMK
1 stop25h 20mMultiple Airlines
Deal found 13/7฿26,170
Sun 31/802:35BKK - SEA
1 stop25h 05mเดลต้า
Wed 10/912:35SEA - BKK
1 stop20h 50mเดลต้า
Deal found 13/7฿26,851

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 15 July 2025.
Use the filters below to find and compare flights to Seattle that are best for you.

Fly from

Bangkok

Route

Depart

Return

Price

BangkokSeattle

BKK - SEA

BKKSEA

Bangkok Suvarnabhumi

Sat 13/12

23:35-18:35

1 stop34h 00m

Seattle/Tacoma Intl

Fri 2/1

21:30-17:50

1 stop29h 20m

฿21,597

BangkokSeattle

BKK - SEA

BKKSEA

Bangkok Suvarnabhumi

Thu 30/10

09:40-14:55

1 stop19h 15m

Seattle/Tacoma Intl

Mon 24/11

00:10-23:20

1 stop32h 10m

฿22,213

BangkokSeattle

BKK - SEA

BKKSEA

Bangkok Suvarnabhumi

Fri 24/10

02:40-19:20

1 stop30h 40m

Seattle/Tacoma Intl

Tue 28/10

01:10-01:35

1 stop34h 25m

฿22,408

BangkokSeattle

BKK - SEA

BKKSEA

Bangkok Suvarnabhumi

Wed 3/9

13:10-16:10

1 stop17h 00m

Seattle/Tacoma Intl

Mon 1/12

23:45-16:30

1 stop25h 45m

฿23,511

BangkokSeattle

BKK - SEA

BKKSEA

Bangkok Suvarnabhumi

Wed 29/10

01:00-10:00

1 stop23h 00m

Seattle/Tacoma Intl

Tue 25/11

11:00-13:15

1 stop35h 15m

฿25,878

BangkokSeattle

DMK - SEA

DMKSEA

Bangkok Don Mueang Intl

Fri 24/10

02:45-12:30

1 stop23h 45m

Seattle/Tacoma Intl

Tue 28/10

00:10-15:30

1 stop25h 20m

฿26,170

BangkokSeattle

BKK - SEA

BKKSEA

Bangkok Suvarnabhumi

Sun 31/8

02:35-13:40

1 stop25h 05m

Seattle/Tacoma Intl

Wed 10/9

12:35-23:25

1 stop20h 50m

฿26,851

BangkokSeattle

BKK - SEA

BKKSEA

Bangkok Suvarnabhumi

Tue 9/9

23:20-19:15

1 stop33h 55m

฿13,944

BangkokSeattle

BKK - SEA

BKKSEA

Bangkok Suvarnabhumi

Sat 18/10

02:40-19:20

1 stop30h 40m

฿14,171

BangkokSeattle

BKK - SEA

BKKSEA

Bangkok Suvarnabhumi

Mon 8/9

13:10-16:10

1 stop17h 00m

฿14,398

Flights are sorted by cheapest return flights first.

Deals found on 13/7

Showing 1-10 of 15 results
1
2

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?

Use this chart to determine the optimal time to book a return flight from Bangkok to Seattle. Price data was last updated on 11 July 2025.

To ensure you get the cheapest price possible for a flight to Seattle, you should look to book at least 40 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 18 hours 35 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.

When is the cheapest time to fly to Seattle?

Use this chart to determine the cheapest time to fly return from Bangkok to Seattle. Price data was last updated on 16 December 2024.

Users looking for the lowest fares to Seattle should consider flying on Wednesday at midday, when prices are typically cheapest. Budget-minded travellers will want to avoid Monday at midday, when prices are usually at their highest.

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 Korean Air.

EVA Air
EVA Air
From ฿815
Asiana Airlines
Asiana Airlines
From ฿686
Korean Air
Korean Air
From ฿805
China Airlines
China Airlines
From ฿853

What are the cheapest airlines that fly to Seattle?

The cheapest airlines flying from Bangkok to Seattle are Philippine Airlines, Asiana Airlines and Korean Air.

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 15 July 2025.
Get a feel of what it's like to fly with STARLUX Airlines, Korean Air, andChina 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
9.0
Wonderful
Check prices

Comfort

9.0

Entertainment

9.0

Food

8.9

Crew

9.3

Overall

9.0

Boarding

9.0

Reviews

1 / 7
10.0
Excellent

ltulagan,Jun 2025

TPE - SEA

The whole trip was very pleasant from the crew, the food, the amenities during the flight.
STARLUX Airlines
9.0
Wonderful
STARLUX Airlines
9.0
Wonderful
Check prices

Comfort

9.0

Entertainment

9.0

Food

8.9

Crew

9.3

Overall

9.0

Boarding

9.0

Reviews

1 / 7
10.0
Excellent

ltulagan,Jun 2025

TPE - SEA

The whole trip was very pleasant from the crew, the food, the amenities during the flight.
Korean Air
8.4
Very Good
1,109 reviews
STARLUX Airlines
9.0
Wonderful
Check prices

Comfort

9.0

Entertainment

9.0

Food

8.9

Crew

9.3

Overall

9.0

Boarding

9.0

Reviews

1 / 7
10.0
Excellent

ltulagan,Jun 2025

TPE - SEA

The whole trip was very pleasant from the crew, the food, the amenities during the flight.
China Airlines
8.3
Very Good
744 reviews
STARLUX Airlines
9.0
Wonderful
Check prices

Comfort

9.0

Entertainment

9.0

Food

8.9

Crew

9.3

Overall

9.0

Boarding

9.0

Reviews

1 / 7
10.0
Excellent

ltulagan,Jun 2025

TPE - SEA

The whole trip was very pleasant from the crew, the food, the amenities during the flight.
เดลต้า
8.0
Very Good
7,956 reviews
STARLUX Airlines
9.0
Wonderful
Check prices

Comfort

9.0

Entertainment

9.0

Food

8.9

Crew

9.3

Overall

9.0

Boarding

9.0

Reviews

1 / 7
10.0
Excellent

ltulagan,Jun 2025

TPE - SEA

The whole trip was very pleasant from the crew, the food, the amenities during the flight.
Philippine Airlines
7.2
Good
893 reviews
STARLUX Airlines
9.0
Wonderful
Check prices

Comfort

9.0

Entertainment

9.0

Food

8.9

Crew

9.3

Overall

9.0

Boarding

9.0

Reviews

1 / 7
10.0
Excellent

ltulagan,Jun 2025

TPE - SEA

The whole trip was very pleasant from the crew, the food, the amenities during the flight.

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 ฿2,264, while return flights cost around ฿44,228.

  • How much is a return flight to Seattle?

    A return flight to Seattle will typically cost around ฿1,466, however they can be found for as little as ฿1,364.

  • 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 (16 hours 20 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, 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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