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NHT to ALN: distance & flight time
Northolt (RAF Northolt) → Alton/St Louis (St Louis Regional Airport)
4,169 mi
6,710 km · 3,623 nm
8h 38m
estimated nonstop flight time
—
time difference · heading northwest
See live NHT→ALN fares Phone-only fares on this route — call free
Flight time details
4,169 miles nonstop takes roughly 8h 38m 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
- NHT — RAF Northolt · Northolt, United Kingdom
- 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 NHT
- LHR · London Heathrow Airport6 mi away
- LGW · London Gatwick Airport30 mi away
- HYC · Wycombe Air Park17 mi away
- LCY · London City Airport21 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 NHT from ALN?
The flight distance from Northolt (NHT) to Alton/St Louis (ALN) is 4,169 miles (6,710 km, 3,623 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from NHT to ALN?
A nonstop flight takes about 8h 38m 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 NHT to ALN?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on NHT–ALN that never appear on search engines, with no booking fees.