District of Columbia to Thailand · 13,586 km · Compare flights, trains, buses & driving
The straight-line distance from Washington DC to Chiang Mai is approximately 13,586 km (8,442 miles). By road, the distance increases to about 17,662 km due to terrain, highways, and road networks connecting District of Columbia to Thailand.
Flying is the fastest way to cover the 13,586 km distance. Flights from IAD to CNX take approximately 18 hrs 52 min including boarding and taxiing. Multiple airlines operate on this route, and fares vary depending on the season, time of booking, and class of travel.
For the best prices, book 2-3 weeks in advance and opt for mid-week departures (Tuesday, Wednesday) which are typically cheaper than weekend flights.
Search Washington DC to Chiang Mai FlightsFor official travel information, regulations, and booking services:
DGCA — Indian aviation authority
Passport Seva — Passport and travel documents
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