Need help booking?
Unpublished phone-only deals available
FKB to ALN: distance & flight time
Karlsruhe/Baden-Baden (Karlsruhe Baden-Baden Airport) → Alton/St Louis (St Louis Regional Airport)
4,590 mi
7,388 km · 3,989 nm
9h 28m
estimated nonstop flight time
—
time difference · heading northwest
See live FKB→ALN fares Phone-only fares on this route — call free
Flight time details
4,590 miles nonstop takes roughly 9h 28m 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
- FKB — Karlsruhe Baden-Baden Airport · Karlsruhe/Baden-Baden, Germany
- 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 FKB
- SXB · Strasbourg Airport27 mi away
- LHA · Lahr Airport31 mi away
- ZQW · Zweibrücken Airport43 mi away
- FRA · Frankfurt am Main Airport89 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 FKB from ALN?
The flight distance from Karlsruhe/Baden-Baden (FKB) to Alton/St Louis (ALN) is 4,590 miles (7,388 km, 3,989 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from FKB to ALN?
A nonstop flight takes about 9h 28m gate to gate. Actual time varies with winds, routing and season — eastbound transatlantic flights, for example, are usually faster than the return.
Are there nonstop flights from FKB to ALN?
Nonstop service on FKB–ALN depends on the season and the day of week. Run the fare search on this page with the nonstop filter applied to see current direct options; when there is no nonstop, a single connection through a carrier hub adds roughly 2–4 hours to the 9h 28m nonstop estimate.
What is the cheapest way to fly from FKB to ALN?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on FKB–ALN that never appear on search engines, with no booking fees.
Why are some FKB to ALN fares phone-only?
Consolidator contracts let us sell certain FKB–ALN tickets below the price airlines permit us to publish online, so those fares can only be quoted over the phone. Call the travel desk and an agent will check phone-only inventory for your dates.