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DEC to AIA: distance & flight time
Decatur (Decatur Airport) → Alliance (Alliance Municipal Airport)
743 mi
1,195 km · 645 nm
2h 5m
estimated nonstop flight time
-1h
time difference · heading west
See live DEC→AIA fares Phone-only fares on this route — call free
Flight time details
743 miles nonstop takes roughly 2h 5m gate to gate, flying west. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 1-hour time set-back when reading arrival times on your ticket.
The two airports
- DEC — Decatur Airport · Decatur, United States
- AIA — Alliance Municipal Airport · Alliance, 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 DEC
Near AIA
- BFF · Western Neb. Rgnl/William B. Heilig Airport43 mi away
- CDR · Chadron Municipal Airport56 mi away
- SNY · Sidney Municipal-Lloyd W Carr Field66 mi away
- STK · Sterling Municipal Airport102 mi away
Frequently asked questions
How far is DEC from AIA?
The flight distance from Decatur (DEC) to Alliance (AIA) is 743 miles (1,195 km, 645 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from DEC to AIA?
A nonstop flight takes about 2h 5m 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 Decatur and Alliance?
Alliance is 1 hour behind Decatur.
What is the cheapest way to fly from DEC to AIA?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on DEC–AIA that never appear on search engines, with no booking fees.