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STL to SGN: distance & flight time
St. Louis (St Louis Lambert International Airport) → Ho Chi Minh City (Tan Son Nhat International Airport)
8,841 mi
14,228 km · 7,682 nm
17h 48m
estimated nonstop flight time
+12h
time difference · heading north
See live STL→SGN fares Phone-only fares on this route — call free
Flight time details
8,841 miles nonstop takes roughly 17h 48m 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
- SGN — Tan Son Nhat International Airport · Ho Chi Minh City, Vietnam
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 SGN
- VCA · Can Tho International Airport82 mi away
- VKG · Rach Gia Airport119 mi away
- KTI · Kratie Airport122 mi away
- PNH · Phnom Penh International Airport132 mi away
Frequently asked questions
How far is STL from SGN?
The flight distance from St. Louis (STL) to Ho Chi Minh City (SGN) is 8,841 miles (14,228 km, 7,682 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from STL to SGN?
A nonstop flight takes about 17h 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 St. Louis and Ho Chi Minh City?
Ho Chi Minh City is 12 hours ahead of St. Louis.
What is the cheapest way to fly from STL to SGN?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on STL–SGN that never appear on search engines, with no booking fees.