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STL to KDT: distance & flight time
St. Louis (St Louis Lambert International Airport) → Nakhon Pathom (Kamphaeng Saen Airport)
8,725 mi
14,042 km · 7,582 nm
17h 34m
estimated nonstop flight time
+12h
time difference · heading north
See live STL→KDT fares Phone-only fares on this route — call free
Flight time details
8,725 miles nonstop takes roughly 17h 34m 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
- KDT — Kamphaeng Saen Airport · Nakhon Pathom, 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 KDT
- DMK · Don Mueang International Airport48 mi away
- BKK · Suvarnabhumi Airport63 mi away
- TKH · Takhli Airport85 mi away
- HHQ · Hua Hin Airport101 mi away
Frequently asked questions
How far is STL from KDT?
The flight distance from St. Louis (STL) to Nakhon Pathom (KDT) is 8,725 miles (14,042 km, 7,582 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from STL to KDT?
A nonstop flight takes about 17h 34m 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 Nakhon Pathom?
Nakhon Pathom is 12 hours ahead of St. Louis.
What is the cheapest way to fly from STL to KDT?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on STL–KDT that never appear on search engines, with no booking fees.