Cheap Flights from Washington D.C. to Chiang Mai

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Flight deals from Washington D.C. to Chiang Mai

Looking for a cheap last-minute deal or the best return flight from Washington D.C. to Chiang Mai? Find the lowest prices on one-way and return tickets right here.

Find the cheapest month to fly from Washington D.C. to Chiang Mai

We’re always keeping an eye on fares, so you can find the best one in seconds. It looks like Washington D.C. to Chiang Mai flights are currently cheapest in June.

Washington D.C. to Chiang Mai: Alternative routes

Compare routes from Washington D.C. 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 foundR 11,299
Cheapest month to flyJune

Finding cheap flights from Washington D.C. to Chiang Mai: Frequently asked questions

The best price we found for a return flight from Washington D.C. to Chiang Mai is R 18,128. 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 D.C. to Chiang Mai. But we found flights with one stop from R 18,128.
As of May 2025, there are no flights flying from Washington D.C. to Chiang Mai.
The cheapest month to fly from Washington D.C. to Chiang Mai is usually May 2025.
After crunching the numbers on our flight calendar, we found that it is currently cheapest to fly from Washington D.C. to Chiang Mai Airport on Monday, 1 December 2025.
No airlines currently offer direct flights between Washington D.C. and Chiang Mai Airport. Most routes have one or more stops.
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.
The cheapest airline that flies to Chiang Mai is Korean Air .

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

  • You can choose from multiple airports when planning your flight from Washington DC to Chiang Mai International Airport (CNX). Check out your options for jetting out of Ronald Reagan National Airport (DCA), Washington Dulles International Airport (IAD) and Baltimore/Wash International Thurgood Marshall Airport (BWI).

  • Chiang Mai International Airport is located in Chiang Mai. The city operates in the UTC+7 timezone and is 11 hours ahead of Washington DC.

  • Arriving two hours before an international flight and one hour ahead of a domestic departure are travel rules worth sticking to. Get to the airport on time to board your flight from Washington DC to CNX.

  • With more people on the move during peak months like July, get to the terminal earlier than usual. Two hours for domestic flights and up to four for international journeys will allow for additional wait times. Remember things also get busy during major holidays like Christmas and local events or festivals.

Airports in Washington DC

Ronald Reagan National Airport (DCA)

  • From central Washington DC, DCA is approximately 8 kilometres away. Use navigation apps or visit the official airport website to find the best way to arrive at the terminal.

  • Catching an early flight from Washington DC to Chiang Mai International Airport? Avoid the last-minute rush to the terminal (and catch some extra z's) by choosing one of these stays near Ronald Reagan National Airport:

Washington Dulles International Airport (IAD)

  • Think about adding a stop at Incheon International Airport (ICN). It's a popular stopover on a flight from Washington DC to Chiang Mai International Airport (CNX) leaving Washington Dulles International Airport. Use a long layover to get out and explore, or take advantage of a quick break to browse the airport stores.

  • You can arrive at IAD from central Washington DC in approximately 51 minutes by car (depending on traffic). The journey on public transport will take roughly 3 hours and 26 minutes to travel the 56 kilometres or so.

  • Kick off your holiday early with an extra night away from home. Before catching your flight from Washington DC to CNX, take things easy in one of these hotels close to Washington Dulles International Airport:

About Chiang Mai International Airport (CNX)

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

  • Chiang Mai International Airport to central Chiang Mai is about 10 minutes by car. It's approximately 5 kilometres away. Find out what options are available, such as car rentals, cabs or ride-sharing services.

  • If you're using public transport, expect a journey time of around 23 minutes.

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

  • Lock in a one-way ticket from Washington DC to Chiang Mai International Airport from R 11,299 or travel return from just R 18,128. Fares listed are subject to change and may differ when you make your booking.

  • To find cheap tickets from Washington DC to CNX, book ahead. Airlines generally offer the most competitive fares when flights are first released.

  • Finding cheap tickets from Washington DC to Chiang Mai International Airport is easy if you can be flexible with your travel dates. Try using the 'Whole month' search tool to see the lowest fares across the month and score a great deal.

  • Finding a cheap ticket from Washington DC to CNX is a breeze with Price Alerts. All you need to do is set up one of these automatic alerts and we'll notify you as soon as the price has dropped.

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

The best time to fly from Washington DC to Chiang Mai International Airport (CNX)

  • It's time to work out your trip dates for your flight from Washington DC to Chiang Mai International Airport. August is the busiest month for a trip to Chiang Mai. If you like a quieter vibe, go in February.

  • Before booking a flight from Washington DC to CNX, think about the type of weather you enjoy. April is the warmest month in Chiang Mai, with the temperature ranging from 22ºC to 42ºC.

  • January has average temperatures of between 12ºC and 31ºC. Look for cheap flights from Washington DC to Chiang Mai International Airport sometime then if you'd rather travel in cooler conditions.

More about Chiang Mai

  • After locking in your flight from Washington DC to Chiang Mai International Airport, think about where to rest your head in this city. Make one of these options your base for exploring Chiang Mai:

  • Every great journey has to include a little sightseeing. Doi Suthep, Kalare Night Bazaar and Wat Phra Singh are attractions you won't want to skip in Chiang Mai.

Complete your Chiang Mai trip with a car rental

  • After you've locked in your hotel and cheap flight from Washington DC to Chiang Mai International Airport, the next step is choosing one of our car rentals in Chiang Mai. Browse the exclusive deals and easily compare your options on price, fuel policies, and more.

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