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Cheap Flights from Chiang Mai (CNX) to Seattle (SEAA)

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Flight deals from Chiang Mai to Seattle

Looking for a cheap last-minute deal or the best return flight from Chiang Mai Airport to Seattle? If you want to travel next month, return fares start from $1,153. Find the lowest prices on one-way and return tickets right here.
Seattle.$1,153 per passenger.Departing Tue, 15 Sep, returning Tue, 22 Sep.Return flight with China Airlines.Outbound indirect flight with China Airlines, departs from Chiang Mai on Tue, 15 Sep, arriving in Seattle / Tacoma International.Inbound indirect flight with China Airlines, departs from Seattle / Tacoma International on Tue, 22 Sep, arriving in Chiang Mai.Price includes taxes and charges.From $1,153, select.
Seattle.$1,157 per passenger.Departing Wed, 11 Nov, returning Thu, 26 Nov.Return flight with Korean Air.Outbound indirect flight with Korean Air, departs from Chiang Mai on Wed, 11 Nov, arriving in Seattle / Tacoma International.Inbound indirect flight with Korean Air, departs from Seattle / Tacoma International on Thu, 26 Nov, arriving in Chiang Mai.Price includes taxes and charges.From $1,157, select.
Seattle.$1,164 per passenger.Departing Mon, 1 Mar, returning Mon, 8 Mar.Return flight with Korean Air.Outbound indirect flight with Korean Air, departs from Chiang Mai on Mon, 1 Mar, arriving in Seattle / Tacoma International.Inbound indirect flight with Korean Air, departs from Seattle / Tacoma International on Mon, 8 Mar, arriving in Chiang Mai.Price includes taxes and charges.From $1,164, select.
Seattle.$1,185 per passenger.Departing Sat, 31 Oct, returning Sun, 29 Nov.Return flight with STARLUX Airlines.Outbound indirect flight with STARLUX Airlines, departs from Chiang Mai on Sat, 31 Oct, arriving in Seattle / Tacoma International.Inbound indirect flight with STARLUX Airlines, departs from Seattle / Tacoma International on Sun, 29 Nov, arriving in Chiang Mai.Price includes taxes and charges.From $1,185, select.
Seattle.$1,195 per passenger.Departing Sat, 12 Dec, returning Tue, 12 Jan.Return flight with STARLUX Airlines.Outbound indirect flight with STARLUX Airlines, departs from Chiang Mai on Sat, 12 Dec, arriving in Seattle / Tacoma International.Inbound indirect flight with STARLUX Airlines, departs from Seattle / Tacoma International on Tue, 12 Jan, arriving in Chiang Mai.Price includes taxes and charges.From $1,195, select.
Seattle.$1,195 per passenger.Departing Tue, 2 Mar, returning Fri, 9 Apr.Return flight with STARLUX Airlines.Outbound indirect flight with STARLUX Airlines, departs from Chiang Mai on Tue, 2 Mar, arriving in Seattle / Tacoma International.Inbound indirect flight with STARLUX Airlines, departs from Seattle / Tacoma International on Fri, 9 Apr, arriving in Chiang Mai.Price includes taxes and charges.From $1,195, select.
Seattle.$1,204 per passenger.Departing Sat, 1 May, returning Mon, 10 May.Return flight with STARLUX Airlines.Outbound indirect flight with STARLUX Airlines, departs from Chiang Mai on Sat, 1 May, arriving in Seattle / Tacoma International.Inbound indirect flight with STARLUX Airlines, departs from Seattle / Tacoma International on Mon, 10 May, arriving in Chiang Mai.Price includes taxes and charges.From $1,204, select.
Seattle.$1,258 per passenger.Departing Sun, 27 Sep, returning Wed, 7 Oct.Return flight with EVA Air.Outbound indirect flight with EVA Air, departs from Chiang Mai on Sun, 27 Sep, arriving in Seattle / Tacoma International.Inbound indirect flight with EVA Air, departs from Seattle / Tacoma International on Wed, 7 Oct, arriving in Chiang Mai.Price includes taxes and charges.From $1,258, select.
Seattle.$1,282 per passenger.Departing Mon, 1 Feb, returning Wed, 31 Mar.Return flight with EVA Air.Outbound indirect flight with EVA Air, departs from Chiang Mai on Mon, 1 Feb, arriving in Seattle / Tacoma International.Inbound indirect flight with EVA Air, departs from Seattle / Tacoma International on Wed, 31 Mar, arriving in Chiang Mai.Price includes taxes and charges.From $1,282, select.
Seattle.$1,454 per passenger.Departing Tue, 1 Dec, returning Thu, 10 Dec.Return flight with Korean Air.Outbound indirect flight with Korean Air, departs from Chiang Mai on Tue, 1 Dec, arriving in Seattle / Tacoma International.Inbound indirect flight with Korean Air, departs from Seattle / Tacoma International on Thu, 10 Dec, arriving in Chiang Mai.Price includes taxes and charges.From $1,454, select.
Seattle.$1,730 per passenger.Departing Thu, 20 Aug, returning Sat, 12 Dec.Return flight with EVA Air.Outbound indirect flight with EVA Air, departs from Chiang Mai on Thu, 20 Aug, arriving in Seattle / Tacoma International.Inbound indirect flight with EVA Air, departs from Seattle / Tacoma International on Sat, 12 Dec, arriving in Chiang Mai.Price includes taxes and charges.From $1,730, select.
Seattle.$2,525 per passenger.Departing Sat, 10 Oct, returning Tue, 13 Oct.Return flight with EVA Air.Outbound indirect flight with EVA Air, departs from Chiang Mai on Sat, 10 Oct, arriving in Seattle / Tacoma International.Inbound indirect flight with EVA Air, departs from Seattle / Tacoma International on Tue, 13 Oct, arriving in Chiang Mai.Price includes taxes and charges.From $2,525, select.
Seattle.$2,552 per passenger.Departing Sun, 23 May, returning Sat, 5 Jun.Return flight with EVA Air.Outbound indirect flight with EVA Air, departs from Chiang Mai on Sun, 23 May, arriving in Seattle / Tacoma International.Inbound indirect flight with EVA Air, departs from Seattle / Tacoma International on Sat, 5 Jun, arriving in Chiang Mai.Price includes taxes and charges.From $2,552, select.
Seattle.$5,784 per passenger.Departing Wed, 26 Aug, returning Wed, 30 Sep.Return flight with Cathay Pacific.Outbound indirect flight with Cathay Pacific, departs from Chiang Mai on Wed, 26 Aug, arriving in Seattle / Tacoma International.Inbound indirect flight with Cathay Pacific, departs from Seattle / Tacoma International on Wed, 30 Sep, arriving in Chiang Mai.Price includes taxes and charges.From $5,784, select.

Find the cheapest month to fly from Chiang Mai to Seattle

We’re always keeping an eye on fares, so you can find the best one in seconds. It looks like Chiang Mai to Seattle flights are currently cheapest in September.
Aug
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Sep
from $1,153
Oct
from $2,525
Nov
from $1,157
Dec
from $1,454
Jan
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Feb
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Mar
from $1,164
Apr
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May
from $1,204
Jun
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Jul
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Alternative Chiang Mai to Seattle routes

Looking for the cheapest, fastest or easiest route from Chiang Mai to Seattle? You could fly into the following airports instead.

Seattle Lake Union SPB

2km from central Seattle
Closest
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Seattle Boeing Fld

11km from central Seattle
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Seattle / Tacoma International

20km from central Seattle
Cheapest
from $1,153
Search flights

Paine Field

33km from central Seattle
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Chiang Mai to Seattle: Flight information

The things to know before you go.
Cheapest flight found$1,153
Cheapest month to flySeptember

Finding cheap flights from Chiang Mai to Seattle: Frequently asked questions

There are 4 airports in Seattle: Seattle Lake Union SPB, Seattle Boeing Fld, Seattle / Tacoma International, and Paine Field.
The best price we found for a return flight from Chiang Mai to Seattle is $1,153. This is an estimate based on information collected from different airlines and travel providers over the last 4 days and is subject to change and availability.
Currently, there are no airlines that fly direct from Chiang Mai to Seattle. But we found flights with one or more stops from $1,153.
As of August 2026, there are no flights flying from Chiang Mai to Seattle.
The cheapest month to fly from Chiang Mai to Seattle is usually September.
If you're flying from Chiang Mai Airport, the cheapest airport near Seattle is Seattle / Tacoma International – which is 19.5 km away from the centre of Seattle. We've found flights into this airport from $1,153.
After crunching the numbers on our flight calendar, we found that it's currently cheapest to fly from Chiang Mai Airport to Seattle on Tuesday, 15 September 2026.
No airlines currently offer direct flights between Chiang Mai Airport and Seattle. Most routes have one or more stops.
We show every price from over 1,200 airlines and travel agents, comparing them all so you don’t have to. If you know you want to fly to Seattle but you’re not ready to book, set up a Price Alert. We’ll track prices for you, and let you know when they rise or fall.

We crunched all the numbers in our flight calendar and it looks like the cheapest time to book a flight to Seattle is around 40 days in advance, so don’t leave your flight to the last minute.

In August, the average temperature is usually around 18°C. August is typically the warmest month in Seattle, when it usually averages around 23°C. You can expect the least rain in July. The coldest month is December, with temperatures averaging 0°C. The rainiest month is November.
Currently, China Airlines offers the cheapest flight tickets to Seattle.

Flying from Chiang Mai International Airport (CNX) to Seattle: what you need to know

  • Chiang Mai International Airport is located in Chiang Mai. Following the UTC-8 timezone, Seattle is 15 hours behind Chiang Mai.

  • For a smooth journey, turn up at the airport two hours ahead of international flights and an hour before domestic departures. This ensures you have enough time to board your CNX to Seattle flight.

  • Travelling over a peak time such as February? Major public holidays and other high seasons can mean longer lines and delays at security. Be extra cautious and get there up to four hours ahead of an international flight and two hours before a domestic departure.

  • Stopovers are the ideal opportunity to break up your journey and maybe even explore a different city. When searching for plane tickets from CNX to Seattle, deselect the 'Direct flights only' box to see where you can visit along the way. Some popular options include:

    • Shanghai Pudong International Airport (PVG)

    • Beijing Capital International Airport (PEK)

    • Taiwan Taoyuan International Airport (TPE)

  • Located around 3 kilometres from the centre of Chiang Mai, CNX can be reached in about 15 minutes by car. The journey on public transport takes roughly 25 minutes.

  • Looking for a hotel close to CNX? If you're boarding an early flight from Chiang Mai International Airport to Seattle, these stays will put you moments from check-in:

  • 73% of flights taking off from Chiang Mai International Airport reach their destination on schedule.

How to find the cheapest flights from Chiang Mai International Airport (CNX) to Seattle

  • $682 is currently the best price for a one-way Chiang Mai International Airport to Seattle flight. Return plane tickets start at $1,153. These fares can change based on demand.

  • Don't leave things to the last minute. You're more likely to land cheap flights from CNX to Seattle if you book early. Airlines often have some fantastic early bird discounts.

  • If you have flexibility with your travel dates, try using the 'Whole month' tool. It'll give you the lowest price across every month when searching for a Chiang Mai International Airport to Seattle ticket.

  • There's no need to check back constantly to see if fares have dropped when you create a Price Alert. We'll notify you when there's an even better deal on cheap flights from CNX to Seattle.

  • Tailor your trip with filters. Pick your ideal departure and arrival times, airlines and total journey duration. You can also sort your results by 'Best,' 'Cheapest' or 'Fastest' flights from Chiang Mai International Airport to Seattle.

Airports in Seattle

Seattle-Tacoma International Airport (SEA)

  • Seattle-Tacoma International Airport (SEA) to central Seattle takes around 25 minutes to reach by car. The centre is roughly 23 kilometres away.

  • It typically takes 35 minutes to get there by public transport.

  • The last thing you need is a long journey to your hotel if you're arriving on a late flight from Chiang Mai International Airport to Seattle. Check in to one of these accommodation options near SEA instead:

  • Lock in the lowest price by reserving your ride from Seattle-Tacoma International Airport around one week ahead of your flight from CNX to Seattle.

Seattle Paine Field International Airport (PAE)

  • Once your flight from Chiang Mai International Airport to Seattle has touched down, you can make your way to the city centre in around 40 minutes by car. Central Seattle is roughly 40 kilometres from Seattle Paine Field International Airport (PAE).

  • The trip will take roughly 1 hour 30 minutes on public transport.

  • You'll find some comfortable places ready to welcome you near PAE. Tuck yourself in and get cosy after your CNX to Seattle flight at any of these perfectly located options:

  • Get your ideal vehicle, not just whatever's left, by booking your ride from PAE in advance. You can also avoid paying extra, especially during peak travel times.

King County International Airport (BFI)

  • Make your way to the city centre after your flight from Chiang Mai International Airport to Seattle has touched down. Central Seattle is around 11 kilometres from King County International Airport (BFI) and takes roughly 20 minutes to get to by car.

  • Public transport can get you there in around 35 minutes.

  • Enjoy a low-stress, comfortable start to your trip by choosing a hotel near BFI after your CNX to Seattle flight. Recover from your travel day or just take a moment to get your bearings in a new destination at:

  • Rental agencies sometimes offer discounts on early bookings, so book your ride from BFI well ahead of your flight from Chiang Mai International Airport to Seattle. A little planning can save you money.

Best time to go to Seattle

  • It's time to pick your trip dates for your flight from Chiang Mai International Airport to Seattle. July is the busiest month to travel to Seattle. If you prefer a more relaxed vibe, go in December.

  • When booking your Chiang Mai International Airport to Seattle plane ticket, think about what kind of weather you prefer. August is the warmest month in Seattle, with temperatures ranging from 12ºC (54ºF) to 28ºC (82ºF).

  • February has average temperatures of between -1ºC (30ºF) and 11ºC (52ºF). Look for a cheap ticket from CNX to Seattle around that time if you like cooler conditions.

More about Seattle

  • After booking your flight from Chiang Mai International Airport to Seattle, find a hotel that offers the right mix of comfort and location. Make one of these options your base for exploring Seattle:

  • There are so many things to see and do in this city it can be hard to know where to begin. Pike Place Market, Space Needle and Seattle Skyline are major attractions which should be on any good Seattle itinerary.

Explore more of the United States

  • Seattle has plenty to offer, but there are so many other parts of the United States waiting to be explored. About 241 kilometres south of Seattle, a trip to Portland will keep you busy. Start with leading attractions like Portland Japanese Garden, Peninsula Park Rose Garden and Beyond Van Gogh Portland.

  • If you're looking to explore another major destination in the United States, consider Spokane, roughly 370 kilometres east of Seattle. Riverside State Park, Spokane Falls (Upper Falls) and Cathedral of Our Lady of Lourdes are highlights.

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Prices shown on this page are estimated lowest prices only. Found in the last 12 days.