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UGN to STL: distance & flight time
Chicago (Waukegan National Airport) → St. Louis (St Louis Lambert International Airport)
286 mi
460 km · 248 nm
1h 13m
estimated nonstop flight time
Same time
time difference · heading southwest
See live UGN→STL fares Phone-only fares on this route — call free
Flight time details
286 miles nonstop takes roughly 1h 13m gate to gate, flying southwest. 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
- UGN — Waukegan National Airport · Chicago, United States
- STL — St Louis Lambert International Airport · 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 UGN
- ORD · Chicago O'Hare International Airport31 mi away
- ENW · Kenosha Regional Airport12 mi away
- PWK · Chicago Executive Airport21 mi away
- RAC · John H Batten Airport24 mi away
Near STL
- SUS · Spirit of St Louis Airport16 mi away
- ALN · St Louis Regional Airport20 mi away
- BLV · Scott AFB/Midamerica Airport32 mi away
- SPI · Abraham Lincoln Capital Airport84 mi away
Frequently asked questions
How far is UGN from STL?
The flight distance from Chicago (UGN) to St. Louis (STL) is 286 miles (460 km, 248 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from UGN to STL?
A nonstop flight takes about 1h 13m 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 UGN to STL?
Nonstop service on UGN–STL 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 1h 13m nonstop estimate.
What is the cheapest way to fly from UGN to STL?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on UGN–STL that never appear on search engines, with no booking fees.
Why are some UGN to STL fares phone-only?
Consolidator contracts let us sell certain UGN–STL 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.