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OTP to ALN: distance & flight time
Bucharest (Henri Coandă International Airport) → Alton/St Louis (St Louis Regional Airport)
5,436 mi
8,748 km · 4,724 nm
11h 8m
estimated nonstop flight time
—
time difference · heading northwest
See live OTP→ALN fares Phone-only fares on this route — call free
Flight time details
5,436 miles nonstop takes roughly 11h 8m gate to gate, flying northwest. Add 45–90 minutes per connection if there's no nonstop service. Both airports share the same local time, so schedules read exactly as flown.
The two airports
- OTP — Henri Coandă International Airport · Bucharest, Romania
- ALN — St Louis Regional Airport · Alton/St Louis, 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 OTP
- BBU · Băneasa International Airport5 mi away
- GOZ · Gorna Oryahovitsa Airport100 mi away
- CRA · Craiova Airport110 mi away
- CND · Mihail Kogălniceanu International Airport119 mi away
Near ALN
- STL · St Louis Lambert International Airport20 mi away
- BLV · Scott AFB/Midamerica Airport26 mi away
- SUS · Spirit of St Louis Airport36 mi away
- SPI · Abraham Lincoln Capital Airport69 mi away
Frequently asked questions
How far is OTP from ALN?
The flight distance from Bucharest (OTP) to Alton/St Louis (ALN) is 5,436 miles (8,748 km, 4,724 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from OTP to ALN?
A nonstop flight takes about 11h 8m 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 cheapest way to fly from OTP to ALN?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on OTP–ALN that never appear on search engines, with no booking fees.