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STL to DMK: distance & flight time
St. Louis (St Louis Lambert International Airport) → Bangkok (Don Mueang International Airport)
8,730 mi
14,049 km · 7,586 nm
17h 35m
estimated nonstop flight time
+12h
time difference · heading north
See live STL→DMK fares Phone-only fares on this route — call free
Flight time details
8,730 miles nonstop takes roughly 17h 35m gate to gate, flying north. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 12-hour time gain when reading arrival times on your ticket.
The two airports
- STL — St Louis Lambert International Airport · St. Louis, United States
- DMK — Don Mueang International Airport · Bangkok, Thailand
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 STL
- SUS · Spirit of St Louis Airport16 mi away
- ALN · St Louis Regional Airport20 mi away
- BLV · Scott AFB/Midamerica Airport32 mi away
- SPI · Abraham Lincoln Capital Airport84 mi away
Near DMK
- BKK · Suvarnabhumi Airport19 mi away
- KDT · Kamphaeng Saen Airport48 mi away
- UTP · U-Tapao International Airport89 mi away
- TKH · Takhli Airport97 mi away
Frequently asked questions
How far is STL from DMK?
The flight distance from St. Louis (STL) to Bangkok (DMK) is 8,730 miles (14,049 km, 7,586 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from STL to DMK?
A nonstop flight takes about 17h 35m 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 St. Louis and Bangkok?
Bangkok is 12 hours ahead of St. Louis.
What is the cheapest way to fly from STL to DMK?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on STL–DMK that never appear on search engines, with no booking fees.