Skyscanner

Cheap flights from Chiang Mai to Seattle

Travellers and cabin class

Compare Chiang Mai to Seattle flight deals

Find the cheapest month or even day of the year to fly to Seattle

Book the best Seattle fare with no extra fees

Flight deals from Chiang Mai to Seattle

Looking for a cheap last-minute deal or the best return flight from Chiang Mai to Seattle? Find the lowest prices on one-way and return tickets right here.
Seattle.P47,663 per passenger.Departing Wed, 15 Oct, returning Wed, 12 Nov.Return flight with Korean Air.Outbound indirect flight with Korean Air, departs from Chiang Mai on Wed, 15 Oct, arriving in Seattle / Tacoma International.Inbound indirect flight with Korean Air, departs from Seattle / Tacoma International on Wed, 12 Nov, arriving in Chiang Mai.Price includes taxes and charges.From P47,663, select.
Seattle.P47,673 per passenger.Departing Tue, 17 Jun, returning Thu, 17 Jul.Return flight with Korean Air.Outbound indirect flight with Korean Air, departs from Chiang Mai on Tue, 17 Jun, arriving in Seattle / Tacoma International.Inbound indirect flight with Korean Air, departs from Seattle / Tacoma International on Thu, 17 Jul, arriving in Chiang Mai.Price includes taxes and charges.From P47,673, select.
Seattle.P47,678 per passenger.Departing Wed, 19 Mar, returning Wed, 26 Mar.Return flight with Delta.Outbound indirect flight with Delta, departs from Chiang Mai on Wed, 19 Mar, arriving in Seattle / Tacoma International.Inbound indirect flight with Delta, departs from Seattle / Tacoma International on Wed, 26 Mar, arriving in Chiang Mai.Price includes taxes and charges.From P47,678, select.
Seattle.P47,704 per passenger.Departing Fri, 19 Dec, returning Sun, 4 Jan.Return flight with Korean Air.Outbound indirect flight with Korean Air, departs from Chiang Mai on Fri, 19 Dec, arriving in Seattle / Tacoma International.Inbound indirect flight with Korean Air, departs from Seattle / Tacoma International on Sun, 4 Jan, arriving in Chiang Mai.Price includes taxes and charges.From P47,704, select.
Seattle.P47,789 per passenger.Departing Thu, 12 Jun, returning Fri, 27 Jun.Return flight with Delta.Outbound indirect flight with Delta, departs from Chiang Mai on Thu, 12 Jun, arriving in Seattle / Tacoma International.Inbound indirect flight with Delta, departs from Seattle / Tacoma International on Fri, 27 Jun, arriving in Chiang Mai.Price includes taxes and charges.From P47,789, select.
Seattle.P48,751 per passenger.Departing Sun, 11 May, returning Wed, 21 May.Return flight with EVA Air.Outbound indirect flight with EVA Air, departs from Chiang Mai on Sun, 11 May, arriving in Seattle / Tacoma International.Inbound indirect flight with EVA Air, departs from Seattle / Tacoma International on Wed, 21 May, arriving in Chiang Mai.Price includes taxes and charges.From P48,751, select.
Seattle.P49,343 per passenger.Departing Mon, 14 Apr, returning Sat, 19 Apr.Return flight with STARLUX Airlines.Outbound indirect flight with STARLUX Airlines, departs from Chiang Mai on Mon, 14 Apr, arriving in Seattle / Tacoma International.Inbound indirect flight with STARLUX Airlines, departs from Seattle / Tacoma International on Sat, 19 Apr, arriving in Chiang Mai.Price includes taxes and charges.From P49,343, select.
Seattle.P61,502 per passenger.Departing Wed, 23 Apr, returning Thu, 22 May.Return flight with Bangkok Airways and EVA Air.Outbound indirect flight with Bangkok Airways, departs from Chiang Mai on Wed, 23 Apr, arriving in Seattle / Tacoma International.Inbound indirect flight with EVA Air, departs from Seattle / Tacoma International on Thu, 22 May, arriving in Chiang Mai.Price includes taxes and charges.From P61,502, 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 March.
Mar
from P47,678
Apr
from P49,343
May
from P48,751
Jun
from P47,789
Jul
from P71,750
Aug
from P69,934
Sep
Find prices
Oct
Find prices
Nov
Find prices
Dec
Find prices
Jan
Find prices
Feb
Find prices

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.

Chiang Mai to Seattle: Flight information

The things to know before you go.
Cheapest flight foundP47,663
Cheapest month to flyOctober

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 P47,663. 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 P47,663.
As of March 2025, there are no flights flying from Chiang Mai to Seattle.
The cheapest month to fly from Chiang Mai to Seattle is usually March 2025.
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 P47,663.
After crunching the numbers on our flight calendar, we found that it's currently cheapest to fly from Chiang Mai Airport to Seattle on Wednesday, 15 October 2025.
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 March, the average temperature is usually around 6°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, Korean Air offers the cheapest flight tickets to Seattle.

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

  • Seattle is 14 hours behind Chiang Mai, where Chiang Mai International Airport is located. Seattle operates on the UTC-7 timezone.

  • To ensure you catch your flight from CNX to Seattle, leave plenty of time for things like check-in and baggage drop. Turning up two hours ahead of international departures and one hour before domestic flights is the general rule.

  • During popular months such as August, you'll want to get to the airport earlier. Arrive two hours before domestic departures and four hours ahead for international flights whenever you're flying during peak periods in general.

  • Stopovers are the ideal opportunity to take a break from travelling — and possibly even explore another city. When browsing flights from CNX to Seattle, uncheck the 'Direct flights only' box to see where you can visit along the way. Popular options include:

    • Taiwan Taoyuan International Airport (TPE)

    • Shanghai Pudong International Airport (PVG)

    • Beijing Capital International Airport (PEK)

  • You'll need an embassy visa for United States if you have a passport from Thailand and are visiting for tourism purposes. Visa and travel documentation requirements can change. So before booking your cheap ticket from Chiang Mai International Airport to Seattle, check with your airline and your destination country's local embassy or consulate for the latest information.

  • The journey from central Chiang Mai to CNX takes about 23 minutes by public transport. If you drive, ride-share or grab a cab, you'll cover the 5 kilometres in 10 minutes or so, depending on traffic conditions.

  • Searching for a convenient hotel close to CNX? If you've booked an early flight from Chiang Mai International Airport to Seattle, these stays will have you sleeping moments from your departure lounge:

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

  • P28,355 is the best price for a one-way ticket from Chiang Mai International Airport to Seattle. A return flight starts at P47,663. These prices can change depending on availability and demand.

  • Don't leave things to the last moment. You're more likely to find cheap tickets from CNX to Seattle if you book ahead. Airlines often offer some great early bird rates.

  • The 'Whole month' search function shows you the cheapest tickets from Chiang Mai International Airport to Seattle across the entire month. It's a great way to find a bargain if your trip dates are flexible.

  • Snapping up a cheap ticket from CNX to Seattle couldn't be easier with Price Alerts. Simply create one of these automatic alerts and we'll let you know when there's a better deal.

  • Use the filters to tailor your flights from Chiang Mai International Airport to Seattle. Enter your ideal departure and arrival times, airlines and number of stops. Or sort your results by 'Cheapest' to see the best deals.

Airports in Seattle

Seattle-Tacoma International Airport (SEA)

  • Seattle-Tacoma International Airport (SEA) is around 23 kilometres from the centre of Seattle. With your own car rental or if you take a cab, the drive is about 18 minutes.

  • Travelling by public transport takes roughly 54 minutes.

  • If you have a late flight from Chiang Mai International Airport to Seattle, nothing beats the convenience of staying close to the terminal. Grab your luggage from the carousel and then be showered and resting not long after at one of these accommodation options near SEA:

Lake Union Sea Plane Base Airport (LKE)

Best time to go to Seattle

  • July is the most popular month to board a flight from Chiang Mai International Airport to Seattle while May is the quietest. To work out the best time to go to Seattle, consider your preferred travel pace and style.

  • Book your flight from Chiang Mai International Airport to Seattle for August to experience the city during its warmest month. You can expect temperatures to range from 12ºC to 28ºC.

  • If you want to travel in cooler conditions, search for a cheap flight from CNX to Seattle in February when temperatures average between -1ºC and 11ºC.

More about Seattle

  • Start your Seattle trip off on the right foot by choosing the ideal place to stay. As soon as you've booked your flight from Chiang Mai International Airport to Seattle, browse our range of accommodation options including:

  • All great journeys should include a little sightseeing. Gas Works - Lake View Point, Queen Anne Bowl Playfield and LMN Architects are essential stops on your Seattle itinerary.

Complete your Seattle trip with a car rental

  • We use the same magic that helped you find your cheap flight from Chiang Mai International Airport to Seattle to track down amazing deals on car rentals. Search for your ride in seconds and easily compare your options. Plus you'll find everything you need to know about car rentals in Seattle, from the most popular rental company to the average daily price.

Plan the rest of your trip from Chiang Mai to Seattle

Prices shown on this page are estimated lowest prices only. Found in the last 45 days.