Flights from Trenton Mercer to St. Louis

Our cheapest offers for flights from Trenton Mercer to St. Louis

Here you can compare cheap flights from Trenton Mercer (TTN) to St. Louis (STL) for one-way or return trips. The following offers were searched for and found on idealo during the last few days. Or start your own flight search to St. Louis. Prices and availability may change at any time.

Outbound Return Airlines Shop Baggage Price
Best option
Trenton-Mercer
St. Louis
Outbound
10/18/25
1 Stopover (MCO)
F92593, F91631
06h 27min
Return
11/17/25
1 Stopover (MCO)
F92630, F92742
08h 25min
Frontier Airlines ?
$198
Trenton-Mercer
St. Louis
Outbound
10/18/25
1 Stopover (MCO)
F92593, F91631
06h 27min
Return
11/17/25
1 Stopover (MCO)
F92630, F92742
08h 25min
Frontier Airlines
$206
Trenton-Mercer
St. Louis
Outbound
10/18/25
1 Stopover (MCO)
F92593, F91631
06h 27min
Return
11/17/25
1 Stopover (MCO)
F92630, F92742
08h 25min
Frontier Airlines
$216
Prices based on recent searches, subject to last-minute changes
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Important flight information

Flight information: Trenton-Mercer - St. Louis

Roundtrip from $197.67
Distance 1345 km
Departure airport Airport Trenton-Mercer Airport (TTN)
Arrival airport Airport St. Louis - Lambert International Airport (STL)
Destination country Flights to United States
Alternative routes to United States
Alternative flights to St. Louis
Flight destinations with a similar price