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STL to UTP: distance & flight time
St. Louis (St Louis Lambert International Airport) → Pattaya (U-Tapao International Airport)
8,808 mi
14,176 km · 7,654 nm
17h 44m
estimated nonstop flight time
+12h
time difference · heading north
See live STL→UTP fares Phone-only fares on this route — call free
Flight time details
8,808 miles nonstop takes roughly 17h 44m 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
- UTP — U-Tapao International Airport · Pattaya, 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 UTP
- HHQ · Hua Hin Airport71 mi away
- BKK · Suvarnabhumi Airport71 mi away
- DMK · Don Mueang International Airport89 mi away
- TDX · Trat Airport93 mi away
Frequently asked questions
How far is STL from UTP?
The flight distance from St. Louis (STL) to Pattaya (UTP) is 8,808 miles (14,176 km, 7,654 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from STL to UTP?
A nonstop flight takes about 17h 44m 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 Pattaya?
Pattaya is 12 hours ahead of St. Louis.
What is the cheapest way to fly from STL to UTP?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on STL–UTP that never appear on search engines, with no booking fees.