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SZL to ALN: distance & flight time
Knobnoster (Whiteman Air Force Base) → Alton/St Louis (St Louis Regional Airport)
189 mi
304 km · 164 nm
58m
estimated nonstop flight time
—
time difference · heading east
See live SZL→ALN fares Phone-only fares on this route — call free
Flight time details
189 miles nonstop takes roughly 58m 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.
The two airports
- SZL — Whiteman Air Force Base · Knobnoster, 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 SZL
- MKC · Charles B. Wheeler Downtown Airport62 mi away
- OJC · Johnson County Executive Airport65 mi away
- AIZ · Lee C Fine Memorial Airport70 mi away
- COU · Columbia Regional Airport72 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 SZL from ALN?
The flight distance from Knobnoster (SZL) to Alton/St Louis (ALN) is 189 miles (304 km, 164 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from SZL to ALN?
A nonstop flight takes about 58m 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 SZL to ALN?
Nonstop service on SZL–ALN 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 58m nonstop estimate.
What is the cheapest way to fly from SZL to ALN?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on SZL–ALN that never appear on search engines, with no booking fees.
Why are some SZL to ALN fares phone-only?
Consolidator contracts let us sell certain SZL–ALN 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.