Salt Lake City to St Louis (SLC → STL). We are tracking 13 fares on this route.
Cheapest tracked fare $69 · typical price $169 · you save about $100 (59%)
Cheapest fares we're tracking
Airline
Departs
Stops
Price
Frontier
2026-11-17
1 stop
$69
Frontier
2026-11-09
1 stop
$78
—
2027-01-29
1 stop
$83
—
2027-02-02
1 stop
$87
—
2026-11-12
1 stop
$88
—
2027-01-08
1 stop
$88
—
2027-02-04
1 stop
$88
—
2026-10-31
1 stop
$91
—
2026-11-14
1 stop
$91
—
2026-11-11
1 stop
$92
—
2027-03-02
1 stop
$97
—
2026-11-04
1 stop
$116
Frontier Airlines
2026-10-28
1 stop
$134
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 Salt Lake City to St Louis get?
The cheapest fare we have tracked on this route is $69, compared with a typical $169 for a trip of this distance.
Is it cheaper to fly to St Louis 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 Salt Lake City to St Louis 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.