
CA $664 Cheap Flights from Bangkok (BKK) to Seattle (SEA)
View CA $664 flight on Wed, Dec 23, 2026
Photo by Port of Seattle
Popular airlines from Suvarnabhumi International Airport (BKK) to Seattle-Tacoma International Airport (SEA)
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Find the cheapest flights on Expedia from Bangkok (BKK) to Seattle (SEA). Flight ticket prices change frequently based on availability and demand. We send price‑drop alerts to make air travel simple and flexible. The lowest one-way fare found on Expedia for this route in the past 7 days starts at CA $664 for travel on December 23, 2026.
Cheap Flights from Bangkok to Seattle (BKK-SEA)
Prices were available within the past 7 days and start at CA $664 for one-way flights and CA $1,157 for roundtrip, for the period specified. Prices and availability are subject to change.
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One way
Roundtrip
Tue, Dec 15 - Thu, Dec 31 · BKK · SEA · Roundtrip
Wed, Feb 3 - Sun, Feb 7 · BKK · SEA · Roundtrip
Sat, Jan 30 - Sat, Feb 20 · BKK · SEA · Roundtrip
Wed, Mar 31 - Sun, Apr 4 · BKK · SEA · Roundtrip
Tue, Jun 15 - Thu, Jun 24 · BKK · SEA · Roundtrip
Wed, Apr 7 - Sat, Apr 17 · BKK · SEA · Roundtrip
Tue, Jun 15 - Thu, Jun 24 · BKK · SEA · Roundtrip
Thu, Dec 24 - Thu, Jan 14 · BKK · SEA · Roundtrip
Wed, Feb 3 - Sun, Feb 7 · BKK · SEA · Roundtrip
Tue, Jun 15 - Thu, Jun 24 · BKK · SEA · Roundtrip
Alternative airports near Seattle
Prices were available within the past 7 days. Prices and availability are subject to change.
20 min
Find the cheapest month to fly from Bangkok (BKK) to Seattle (SEA)
March is typically the cheapest month to fly
From CA $1,132 - CA $1,190 per traveller.
View flights in March
Insights are based on prices from searches for economy trips of 10 days or less on our sites in the last 12 months. Insights are informative only and current prices may differ.
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Bangkok to Seattle Flights
The easy way to book your flights from Bangkok to Seattle
With Expedia, it’s simple to find and book flights to Seattle from Bangkok whether you’re traveling for business or pleasure. Enter your travel dates, hit search, and choose your flight from 11 airlines that cover this route. There are nonstop flights to Seattle - Tacoma Intl., too.
Choose your preferred carrier and cabin class with the advanced search tool and select your ideal departure time. Then, if you want, you can see just nonstop or refundable flights. And if you’re traveling last minute, just enter the date to check out flights from Bangkok to Seattle today, tomorrow, or this week.
Save dollars with cheap flights from Suvarnabhumi Intl., BKK to Seattle - Tacoma Intl., SEA
Sort your search results by price to find great deals on your flight from Bangkok to Seattle—you get all your cheapest options first. Grab yourself a bargain now—the lowest price on flights to Seattle from Bangkok currently is just CA $1,157 rising to CA $1,218.
Here are more money-saving tips:
- Fly in December when flight prices are normally at their lowest
- Book about a month to 6 weeks before you travel for the best prices to Seattle
- Avoid peak season and weekends when flights can cost more
- Early morning and late-night flights are sometimes cheaper, so try varying your travel times
- One surefire way to save money on your flight is to book your flight and hotel together with Expedia. Sometimes, the savings are so large that the flight is basically free!
Reasons to choose Expedia for your flight to Seattle from Bangkok
Whatever your destination, budget, or reason to travel, in just one quick search, you can choose from loads of flights, airlines, and cabin classes. The filters make it quick and easy to find your ideal flights, and if you choose one of the flexible options, you won’t be charged to change your flight. So book your flight to Seattle with Expedia today.
Frequently Asked Questions
How much does a flight from Bangkok (BKK-Suvarnabhumi Intl.) to Seattle, WA (SEA-Seattle - Tacoma Intl.) cost?
You can find cheap one-way flights from CA $664 and cheap return flights CA $1,157 BKK to SEA with Expedia. One-way flights typically cost between CA$898 and CA$6546. Flight prices vary based on the month and day of the week you want to travel, as well as the airline and how far in advance you book your ticket. Filter your search on Expedia by "Price (lowest to highest)" to see the cheapest fares first, and use the Price Tracking tool to receive alerts when BKK to SEA ticket fares go up or down.
What is the cheapest month to fly from Bangkok (BKK-Suvarnabhumi Intl.) to Seattle, WA (SEA-Seattle - Tacoma Intl.)?
November is typically the cheapest month to fly from Bangkok (BKK-Suvarnabhumi Intl.) to Seattle, WA (SEA-Seattle - Tacoma Intl.), with average return fares around CA$1227. November often sees lower prices because it falls outside of peak holiday travel seasons, when demand tends to decrease. Other cheap months to fly from Bangkok (BKK-Suvarnabhumi Intl.) to Seattle, WA (SEA-Seattle - Tacoma Intl.) include September and October.
Which airlines fly direct from Bangkok (BKK) to Seattle, WA (SEA)?
Enter BKK to SEA and your travel dates, then apply the 'Nonstop' filter to see only direct flights.
How do I find cheap flights from Bangkok (BKK-Suvarnabhumi Intl.) to Seattle, WA (SEA-Seattle - Tacoma Intl.)?
To find a cheap flight from Bangkok (BKK-Suvarnabhumi Intl.) to Seattle, WA (SEA-Seattle - Tacoma Intl.), be flexible with your dates. Traveling outside of peak vacation months and booking a mid-week flight can help you save. Early morning and late night flights are often more affordable, too. Expedia allows you to compare flight times, airlines and routes all in one place to find low fares. You can also set up Price Tracking and receive alerts when fares go up or down.
What is the best time to fly from Bangkok (BKK) to Seattle, WA (SEA)?
The best time to fly is usually mid-week (Tuesday or Wednesday) and during early morning hours as flights tend to be cheaper, less crowded, and generally more on-time. Avoid major holidays and peak vacation seasons for smoother travel. Combining off-peak days and hours often gives the best combination of cost, comfort, and convenience.
How many flights per day from Bangkok (BKK-Suvarnabhumi Intl.) to Seattle, WA (SEA-Seattle - Tacoma Intl.)?
There are approximately 89 connecting flights per day from Bangkok (BKK-Suvarnabhumi Intl.) to Seattle, WA (SEA-Seattle - Tacoma Intl.). Some common connection points include Taoyuan Intl. (TPE), Hong Kong Intl. (HKG), and Incheon Intl. (ICN).
What is the earliest flight from Bangkok (BKK-Suvarnabhumi Intl.) to Seattle, WA (SEA-Seattle - Tacoma Intl.)?
The earliest flight from Bangkok (BKK-Suvarnabhumi Intl.) to Seattle, WA (SEA-Seattle - Tacoma Intl.) typically departs around 12:10 AM. This service is offered by Scoot and Singapore Airlines. This is a seasonal service, active in August, September, and October. An early departure like this can help you make the most of your time at your destination. To compare early flights on Expedia, select the "Early Morning" and "Morning" filters in your search.
What day of the week has the most flights from Bangkok (BKK-Suvarnabhumi Intl.) to Seattle, WA (SEA-Seattle - Tacoma Intl.)?
You'll typically find the most flights from Bangkok (BKK-Suvarnabhumi Intl.) to Seattle, WA (SEA-Seattle - Tacoma Intl.) on a Thursday, with around 75 flights available. This gives you a good selection of options for your travel plans. Major airlines on this route include Korean Air, Thai Airways International, and Emirates. Flight schedules are quite consistent throughout the week, so you'll have plenty of options no matter which day you choose to fly.
What are the most popular departure times for flights from Bangkok (BKK-Suvarnabhumi Intl.) to Seattle, WA (SEA-Seattle - Tacoma Intl.)?
The most popular departure times for flights from Bangkok (BKK-Suvarnabhumi Intl.) to Seattle, WA (SEA-Seattle - Tacoma Intl.) are in the morning, from 6am to 9am. Many major carriers, including Japan Airlines, Cathay Pacific and All Nippon Airways, offer flights during this window. Many travellers prefer this time because it allows for an early start to their journey, getting them to their destination with plenty of time left in the day.
How long does it take to fly from Bangkok (BKK-Suvarnabhumi Intl.) to Seattle, WA (SEA-Seattle - Tacoma Intl.)?
A flight from BKK to SEA with a layover takes around 24 hours 50 minutes, with the route covering approximately 11,988 kilometers. Keep in mind that actual flight times can vary due to wind patterns, weather, and air traffic.
Can you fly business or first class from Bangkok (BKK-Suvarnabhumi Intl.) to Seattle, WA (SEA-Seattle - Tacoma Intl.)?
Yes, you can fly business class or first class between BKK and SEA.
Airlines that offer business class service on this route include:
- Korean Air
- Thai Airways International
- KLM
- Shanghai Airlines
- Malaysia Airlines
- Air France
- Lufthansa
- Oman Air
- Philippine Airlines
- Turkish Airlines
- Hong Kong Airlines
- Asiana Airlines
- Alaska Airlines
- Air Canada
- Cathay Pacific
- Air Macau Company
- China Eastern Airlines
- Air Japan Company
- All Nippon Airways
- Austrian Airlines
- United
- Emirates
- Qatar Airways
- EVA Airways
- Finnair
- Vietnam Airlines
- flydubai
- Condor
- Air China
- Japan Airlines
- Singapore Airlines
- Air India
- China Airlines
- Hainan Airlines
- Malindo Air
- Starlux Airlines
First class cabins are available on Emirates, Japan Airlines, and Starlux Airlines.
How do I earn miles on a Bangkok (BKK) to Seattle, WA (SEA) flight with Expedia?
It's easy to earn miles on a Bangkok (BKK) to Seattle, WA (SEA) flight when you book with Expedia. Before you confirm your booking, simply select your frequent flyer program and enter your program number. As a member of One Key™, you can also earn OneKeyCash™* on top of your airline miles when you book with Expedia.
*Excludes taxes and fees. OneKeyCash is not redeemable for cash and can only be used on Expedia and other participating brands.
What airports do you fly into for Seattle, WA (SEA) from Bangkok (BKK)?
If you're planning to travel to Seattle from Suvarnabhumi Intl. (BKK), you can fly directly into Seattle - Tacoma Intl. (SEA). Some flights may connect through major hubs like Hong Kong Intl. (HKG), Dubai Intl. (DXB), or Narita Intl. (NRT) before reaching Seattle. Compare routes and airports on Expedia to find the best flight options for your travel plans.
Is it cheaper to buy a plane ticket from Bangkok (BKK) to Seattle, WA (SEA) at the last minute?
Typically, booking a last minute flight from Bangkok (BKK) to Seattle, WA (SEA) will be more expensive than booking in advance. As the departure date approaches, there are usually fewer seats available which can drive up the cost. However, if there's some wiggle room with your travel dates and times, you could bag a cheap last-minute fare.
Is it cheaper to book a Bangkok (BKK) to Seattle, WA (SEA) flight and hotel package?
Securing a Bangkok (BKK) to Seattle, WA (SEA) flight and hotel package is usually cheaper than booking separately. With Expedia, you can enjoy the ease of organizing your travels all in one place. Select from our extensive range of stays and then add flights, activities and car rentals to your booking. Bundle everything together, and you could save hundreds of dollars.
Can I cancel or change the date of my flight from Bangkok (BKK-Suvarnabhumi Intl.) to Seattle, WA (SEA-Seattle - Tacoma Intl.)?
If you booked your Bangkok (BKK-Suvarnabhumi Intl.) to Seattle, WA (SEA-Seattle - Tacoma Intl.) flight within the last 24 hours, you may be able to modify or cancel it without any fees. Depending on the airline and the type of ticket you have, additional charges may apply for changes beyond this timeframe. Airline policies and contact information can be found in your itinerary or confirmation email. Or, head to our Customer Service portal if you'd like more information.
Travel information
| Origin airport | Suvarnabhumi International Airport |
|---|---|
| Destination airport | Seattle-Tacoma International Airport |
| Distance | 11,986 km away |
| Airlines serving | EVA Airways, Emirates, All Nippon Airways, Air Canada, Cathay Pacific, Starlux Airlines, Japan Airlines, Turkish Airlines, Delta, Qatar Airways, KLM, Korean Air, Air France, Thai Airways International, American Airlines, Singapore Airlines, China Airlines, Alaska Airlines, Philippine Airlines, Condor, United, Malaysia Airlines, Lufthansa, Hainan Airlines, Finnair |
| Popular airline | EVA Airways |
| Roundtrip price | CA $1,157 |
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