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COU to ALN: distance & flight time

Columbia (Columbia Regional Airport) → Alton/St Louis (St Louis Regional Airport)

117 mi
188 km · 102 nm
46m
estimated nonstop flight time
—
time difference · heading east
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Flight time details

117 miles nonstop takes roughly 46m gate to gate, flying east. 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.

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The two airports

Distances are great-circle ("as the crow flies") — the same basis airlines use for frequent-flyer miles.

Alternate airports can cut this fare

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Frequently asked questions

How far is COU from ALN?

The flight distance from Columbia (COU) to Alton/St Louis (ALN) is 117 miles (188 km, 102 nautical miles), measured along the great-circle route airlines actually fly.

How long is the flight from COU to ALN?

A nonstop flight takes about 46m 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 COU to ALN?

Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on COU–ALN that never appear on search engines, with no booking fees.
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