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THL to DCA: distance & flight time
Tachilek (Tachileik Airport) → Washington (Ronald Reagan Washington National Airport)
8,332 mi
13,410 km · 7,241 nm
16h 48m
estimated nonstop flight time
-10.5h
time difference · heading north
See live THL→DCA fares Phone-only fares on this route — call free
Flight time details
8,332 miles nonstop takes roughly 16h 48m gate to gate, flying north. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 10.5-hour time set-back when reading arrival times on your ticket.
The two airports
- THL — Tachileik Airport · Tachilek, Burma
- DCA — Ronald Reagan Washington National Airport · Washington, United States
Distances are great-circle ("as the crow flies") — the same basis airlines use for frequent-flyer miles.
Alternate airports can cut this fare
Flying from or into a nearby airport is the #1 trick our agents use to beat online prices. Call and we'll compare every combination on one call.
Near THL
- HOE · Ban Huoeisay Airport36 mi away
- CEI · Chiang Rai International Airport37 mi away
- MOG · Mong Hsat Airport44 mi away
- KET · Kengtung Airport60 mi away
Near DCA
Frequently asked questions
How far is THL from DCA?
The flight distance from Tachilek (THL) to Washington (DCA) is 8,332 miles (13,410 km, 7,241 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from THL to DCA?
A nonstop flight takes about 16h 48m gate to gate. Actual time varies with winds, routing and season — eastbound transatlantic flights, for example, are usually faster than the return.
What is the time difference between Tachilek and Washington?
Washington is 10.5 hours behind Tachilek.
What is the cheapest way to fly from THL to DCA?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on THL–DCA that never appear on search engines, with no booking fees.