Detour Flights

Cheap flights to St Louis

We are tracking 187 fares into St Louis (STL) from 30 departure airports.

Cheapest tracked fare $19  ·  about $17 below the typical price for that distance

Cheapest fares we're tracking

FromDepartsStopsPrice
Atlanta (ATL)2026-10-28Direct$19
Atlanta (ATL)2026-11-04Direct$19
Atlanta (ATL)2026-11-11Direct$23
Atlanta (ATL)2026-12-14Direct$24
Columbus (CMH)2026-11-171 stop$41
Denver (DEN)2026-11-18Direct$44
Denver (DEN)2026-12-02Direct$44
Denver (DEN)2027-01-27Direct$44
Denver (DEN)2027-02-01Direct$44
Denver (DEN)2027-02-06Direct$44
Denver (DEN)2026-10-28Direct$44
Denver (DEN)2026-11-11Direct$44
(IAD)2026-10-271 stop$46
Philadelphia (PHL)2026-10-281 stop$52
Philadelphia (PHL)2026-11-181 stop$52
Chicago Midway (MDW)2026-10-31Direct$52
Houston Intercontinental (IAH)2026-11-111 stop$54
(MDW)2026-10-15Direct$54
Dallas-Fort Worth (DFW)2026-11-12Direct$56
Chicago Midway (MDW)2026-11-07Direct$56

Popular departure airports

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Compare every airport, not just this one

Pin one end of your trip and let a whole region compete for the other. The cheapest airport is often not the one you were going to use.

Find my cheapest airport

Common questions

Which airports have cheap flights to St Louis?
We are currently tracking 187 fares into St Louis from 30 departure airports, listed cheapest first above.
Is St Louis the cheapest airport for this trip?
Not always. Cached fare feeds cover big hubs densely and secondary airports sparsely, so a cheaper nearby airport is often simply missing from a normal search rather than more expensive. Our reverse search prices a whole region's airports against each other to surface it.