What’s the cost of a flight from Trenton to Saint Louis?

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

Choose a date to explore the best fares now.

If possible, avoid holiday periods: ticket prices tend to rise quickly and availability drops, especially on busy routes. Morning and evening flights are often in high demand too — book early to get a good fare.

Exploring all airports near Trenton Mercer and Saint Louis

Checking all the airports available in the area can give you more departure and arrival options for your trip.

• Airports in Trenton Mercer: Trenton Mercer is currently the only one operating.
• Airports in Saint Louis: Saint Louis - Lambert is the only option available right now.

Looking at expected traffic to the airport can help avoid surprises on departure day. On busy routes, flying from a quieter airport might also save you money.

Compare flights from Trenton to Saint Louis with advanced filters

Find your ideal flight using Jetcost. Select whether you want nonstop or connecting flights, round-trip or one-way, and filter by airline, price, or booking site.

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If you have a preferred time to leave or arrive, filters can help you show only the matching flights. You can also filter by your favorite airline and see only those deals.