How much is a flight from Saint Louis to Trenton?

Prices vary based on date, airline, and availability. Compare several options if you're flying between Saint Louis and Trenton Mercer.

Pick a travel date to see today’s available fares.

Fares change often — checking several times throughout the week can make a big difference. Booking in advance often means access to lower prices for the Saint Louis - Trenton route.

Which departure and arrival airports are available?

Between Saint Louis and Trenton Mercer, flight options may depend on the combination of airports available.

• Airports in Saint Louis: Only Saint Louis - Lambert is currently in operation.
• Airports in Trenton Mercer: Trenton Mercer is the only active airport in the area.

Sometimes flying into a nearby city can be more cost-effective. When a city has multiple airports, it’s worth comparing different flight combinations.

Plan your perfect flight from Saint Louis to Trenton

Jetcost gives you full control over your flight search. Filter by date, time, duration, price, and airline. See round-trip and one-way options from low-cost and full-service carriers like Delta, United, American, and more.

Other popular destinations

Planning a trip to United States? Other frequent searches include: Atlanta, Los Angeles, Miami, New York City, Orlando.

Some airlines include baggage in the fare, others don’t — always check the details before booking. If you're looking for round-trip flights, you can easily see the most convenient combinations.