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Cheap Flights from Washington Dulles to Chiang Mai

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Compare Washington Dulles to Chiang Mai flight deals

Find the cheapest month or even day of the year to fly to Chiang Mai

Book the best Chiang Mai fare with no extra fees

Flight deals from Washington Dulles to Chiang Mai

Looking for a cheap last-minute deal or the best return flight from Washington Dulles to Chiang Mai? Find the lowest prices on one-way and return tickets right here.
Chiang Mai.Rs141,358 per passenger.Departing Sun, 4 May.One-way flight with Air India.Outbound indirect flight with Air India, departs from Washington Dulles on Sun, 4 May, arriving in Chiang Mai.Price includes taxes and charges.From Rs141,358, select.
Chiang Mai.Rs143,475 per passenger.Departing Tue, 8 Apr.One-way flight with Air China.Outbound indirect flight with Air China, departs from Washington Dulles on Tue, 8 Apr, arriving in Chiang Mai.Price includes taxes and charges.From Rs143,475, select.
Chiang Mai.Rs208,818 per passenger.Departing Thu, 31 Jul.One-way flight with Alaska Airlines.Outbound indirect flight with Alaska Airlines, departs from Washington Dulles on Thu, 31 Jul, arriving in Chiang Mai.Price includes taxes and charges.From Rs208,818, select.
Chiang Mai.Rs217,043 per passenger.Departing Sun, 15 Jun.One-way flight with Saudia.Outbound indirect flight with Saudia, departs from Washington Dulles on Sun, 15 Jun, arriving in Chiang Mai.Price includes taxes and charges.From Rs217,043, select.
Chiang Mai.Rs229,514 per passenger.Departing Mon, 8 Dec.One-way flight with Alaska Airlines.Outbound indirect flight with Alaska Airlines, departs from Washington Dulles on Mon, 8 Dec, arriving in Chiang Mai.Price includes taxes and charges.From Rs229,514, select.
Chiang Mai.Rs243,206 per passenger.Departing Fri, 13 Feb.One-way flight with Qatar Airways.Outbound indirect flight with Qatar Airways, departs from Washington Dulles on Fri, 13 Feb, arriving in Chiang Mai.Price includes taxes and charges.From Rs243,206, select.

Find the cheapest month to fly from Washington Dulles to Chiang Mai

We’re always keeping an eye on fares, so you can find the best one in seconds. It looks like Washington Dulles to Chiang Mai flights are currently cheapest in May.
Apr
from Rs143,475
May
from Rs141,358
Jun
from Rs217,043
Jul
from Rs208,818
Aug
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Sep
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Oct
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Nov
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Dec
from Rs229,514
Jan
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Feb
from Rs243,206
Mar
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Washington Dulles to Chiang Mai: Alternative routes

Compare routes from Washington Dulles to Chiang Mai below. You may find an airport to fly into that's cheaper, faster, or easier than Chiang Mai.

Washington D.C. to Chiang Mai: Flight information

The things to know before you go.
Cheapest flight foundRs141,358
Cheapest month to flyMay

Finding cheap flights from Washington Dulles to Chiang Mai: Frequently asked questions

The best price we found for a return flight from Washington Dulles to Chiang Mai is Rs224,213. 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 Washington Dulles to Chiang Mai. But we found flights with one or more stops from Rs224,213.
As of April 2025, there are no flights flying from Washington Dulles to Chiang Mai.
The cheapest month to fly from Washington Dulles to Chiang Mai is usually April 2025.
After crunching the numbers on our flight calendar, we found that it's currently cheapest to fly from Washington Dulles Airport to Chiang Mai Airport on Saturday, 5 April 2025.
No airlines currently offer direct flights between Washington Dulles Airport and Chiang Mai Airport. 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 Chiang Mai 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 Chiang Mai is around 40 days in advance, so don’t leave your flight to the last minute.
Currently, Air China offers the cheapest flight tickets to Chiang Mai.

Travelling from Washington Dulles International Airport (IAD) to Chiang Mai International Airport (CNX): what you need to know

  • You can expect bigger queues during popular months such as July and other peak periods. Arriving up to four hours in advance for international flights and two hours for domestic departures is a smart move.

  • Finding a stopover for flights from Washington Dulles International Airport to Chiang Mai International Airport is simple with our handy search tool. Just deselect 'Direct flights only' to look at your options. Incheon International Airport is a popular stopover when journeying from IAD to CNX.

  • To see whether you need a visa to enter Thailand, check with your carrier and the local embassy or consulate. They'll provide you with the latest information, including additional documents you may need after booking your cheap ticket from IAD to CNX.

How to find the cheapest flights from Washington Dulles International Airport (IAD) to Chiang Mai International Airport (CNX)

  • Rs141,358 is currently the lowest price for a one-way ticket from Washington Dulles International Airport to Chiang Mai International Airport. A return flight starts at Rs224,213. These prices may change based on demand and availability.

  • To score cheap flights from IAD to CNX, book ahead. Airlines usually offer the most competitive fares when flights are first released.

  • The 'Whole month' search function shows you the cheapest tickets from Washington Dulles International Airport to Chiang Mai International Airport across the entire month. It's an easy way to snap up a bargain if your plans are flexible.

  • Set up a Price Alert for cheap flights from IAD to CNX. There's no need to check every day to see whether prices have fallen. We'll tell you when the price changes.

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

Handy information about Washington Dulles International Airport (IAD)

Arriving at Chiang Mai International Airport (CNX)

  • If you're arriving on a late flight from Washington Dulles International Airport to Chiang Mai International Airport, nothing tops the convenience of staying near the terminal. Pick up your bags from the carousel and then be showered and relaxing not long after at one of these hotels near CNX:

Getting from Chiang Mai International Airport (CNX) to central Chiang Mai

  • Chiang Mai International Airport is approximately 5 kilometres from the centre of Chiang Mai. With a car rental or if you're catching a cab, the drive is around 10 minutes.

  • Getting there on public transport takes around 23 minutes.

When to fly to Chiang Mai International Airport (CNX)

  • The quietest month for a flight from Washington Dulles International Airport to Chiang Mai International Airport is February, while August is the most popular. Pick the best time to visit Chiang Mai based on whether you prefer a laid-back vibe or a more bustling atmosphere.

  • The warmest month in Chiang Mai is April, with temperatures ranging between 22ºC and 42ºC. Lock in your flights from Washington Dulles International Airport to Chiang Mai International Airport in this month if you enjoy this type of weather.

  • January has average temperatures of between 12ºC and 31ºC. Search for cheap flights from IAD to CNX sometime then if you like travelling in cooler conditions.

More about Chiang Mai

  • When it comes to looking for somewhere to rest your head, you can find the best places to stay in Chiang Mai right here. Browse these options after locking in your flight from IAD to CNX:

  • Doi Suthep and Kalare Night Bazaar are just the start of the big attractions to put on your Chiang Mai itinerary. Keep the momentum going by heading to Wat Phra Singh.

Complete your Chiang Mai trip with hotels and a car rental

  • After you've secured your cheap ticket to Chiang Mai International Airport, discover the lowest prices and exclusive rates for hotels. You can also compare a range of car rental companies in one go to get the best car rental price for your Chiang Mai getaway.

Plan the rest of your trip from Washington D.C. to Chiang Mai

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