St Louis to Ljubljana (STL → LJU). We are tracking 6 fares on this route.
Cheapest tracked fare $457 · typical price $675 · you save about $218 (32%)
Cheapest fares we're tracking
Airline
Departs
Stops
Price
Frontier Airlines
2026-11-06
3 stops
$457
Lufthansa
2026-11-01
1 stop
$493
United Airlines
2026-11-09
2 stops
$499
Lufthansa
2026-11-03
2 stops
$502
Frontier Airlines
2026-10-23
3 stops
$513
United Airlines
2026-11-14
2 stops
$529
Could you save more?
The airport you were going to fly from is often not the cheapest one. Compare every airport in a region against each other, or check whether a multi-day stopover beats the direct fare.
How cheap can flights from St Louis to Ljubljana get?
The cheapest fare we have tracked on this route is $457, compared with a typical $675 for a trip of this distance.
Is it cheaper to fly to Ljubljana from a different airport?
Often, yes. Fares out of secondary airports are frequently cheaper than the obvious hub, but they are the ones most likely to be missing from a normal search. Our reverse search compares every airport in a region against each other so the cheaper departure point is not hidden.
Could a stopover make St Louis to Ljubljana cheaper?
Sometimes. On thin long-haul routes a two-leg trip with a multi-day stopover can beat the direct fare, and occasionally a direct fare is not sold at all. Our detour search prices those routings against the direct flight.