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ALN to DED: distance & flight time
Alton/St Louis (St Louis Regional Airport) → Dehra Dun (Dehradun Airport)
7,604 mi
12,237 km · 6,608 nm
15h 23m
estimated nonstop flight time
—
time difference · heading north
See live ALN→DED fares Phone-only fares on this route — call free
Flight time details
7,604 miles nonstop takes roughly 15h 23m gate to gate, flying north. 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
- ALN — St Louis Regional Airport · Alton/St Louis, United States
- DED — Dehradun Airport · Dehra Dun, India
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 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
Near DED
- IXC · Chandigarh Airport89 mi away
- SLV · Shimla Airport90 mi away
- PGH · Pantnagar Airport111 mi away
- DEL · Indira Gandhi International Airport130 mi away
Frequently asked questions
How far is ALN from DED?
The flight distance from Alton/St Louis (ALN) to Dehra Dun (DED) is 7,604 miles (12,237 km, 6,608 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from ALN to DED?
A nonstop flight takes about 15h 23m 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 ALN to DED?
Nonstop service on ALN–DED 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 15h 23m nonstop estimate.
What is the cheapest way to fly from ALN to DED?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on ALN–DED that never appear on search engines, with no booking fees.
Why are some ALN to DED fares phone-only?
Consolidator contracts let us sell certain ALN–DED 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.