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SEE to ALN: distance & flight time
El Cajon (Gillespie Field) → Alton/St Louis (St Louis Regional Airport)
1,559 mi
2,508 km · 1,354 nm
3h 31m
estimated nonstop flight time
—
time difference · heading northeast
See live SEE→ALN fares Phone-only fares on this route — call free
Flight time details
1,559 miles nonstop takes roughly 3h 31m gate to gate, flying northeast. 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
- SEE — Gillespie Field · El Cajon, United States
- 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 SEE
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 SEE from ALN?
The flight distance from El Cajon (SEE) to Alton/St Louis (ALN) is 1,559 miles (2,508 km, 1,354 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from SEE to ALN?
A nonstop flight takes about 3h 31m 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 SEE to ALN?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on SEE–ALN that never appear on search engines, with no booking fees.