Need help booking?
Unpublished phone-only deals available
SDF to AAH: distance & flight time
Louisville (Louisville International Standiford Field) → Aachen (Aachen-Merzbrück Airport)
4,315 mi
6,945 km · 3,750 nm
8h 56m
estimated nonstop flight time
+6h
time difference · heading northeast
See live SDF→AAH fares Phone-only fares on this route — call free
Flight time details
4,315 miles nonstop takes roughly 8h 56m gate to gate, flying northeast. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 6-hour time gain when reading arrival times on your ticket.
The two airports
- SDF — Louisville International Standiford Field · Louisville, United States
- AAH — Aachen-Merzbrück Airport · Aachen, Germany
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 SDF
- LOU · Bowman Field5 mi away
- FTK · Godman Army Air Field22 mi away
- FFT · Capital City Airport45 mi away
- LEX · Blue Grass Airport62 mi away
Near AAH
- GKE · Geilenkirchen Air Base11 mi away
- MST · Maastricht Aachen Airport19 mi away
- MGL · Mönchengladbach Airport31 mi away
- LGG · Liège Airport35 mi away
Frequently asked questions
How far is SDF from AAH?
The flight distance from Louisville (SDF) to Aachen (AAH) is 4,315 miles (6,945 km, 3,750 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from SDF to AAH?
A nonstop flight takes about 8h 56m 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 Louisville and Aachen?
Aachen is 6 hours ahead of Louisville.
What is the cheapest way to fly from SDF to AAH?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on SDF–AAH that never appear on search engines, with no booking fees.