Which airports can I use when flying from St. Louis to Trenton?

Flights from St. Louis to Trenton usually depart from Lambert-St Louis (STL) and arrive at Trenton-Mercer (TTN).

What cabin classes can I book on flights from St. Louis to Trenton?

Only Economy Class is available on flights from St. Louis to Trenton.

Which airports do connecting flights from St. Louis to Trenton pass through?

Most connecting flights from St. Louis to Trenton pass through Orlando (MCO), which handles 100% of one-stop traffic on this route.

Can I save money by using flexible dates for flights from St. Louis to Trenton?

Yes. Flexible dates can save you up to 48% on flights from St. Louis to Trenton. Saturday is the cheapest departure day at $146 round-trip on average, while Tuesday is the most expensive at $279, a difference of $133. Cheaper weekend fares like these are typical of routes dominated by weekday business travel.

Do I need a passport to fly from St. Louis to Trenton?

No, a passport is not required for this domestic route, but you will need a real ID-compliant driver's license, a state ID or another TSA-accepted form of identification.

Have flight prices from St. Louis to Trenton changed much recently?

Yes. Based on fares seen in the past 5 days, round-trip prices on this route showed a wide range, from about $280 to $1,153. That means the highest observed fare was about 4x higher than the lowest one.

How are flight prices from St. Louis to Trenton looking right now?

One-way fares from St. Louis to Trenton are currently higher than usual. Average one-way flight prices are about $173, which is 20% above the typical average for this route.

What is the time difference between St. Louis and Trenton?

Trenton is 1 hour ahead of St. Louis (Eastern Time vs Central Time). Plan for the time shift when scheduling connections or first-day activities.

How much is a round-trip flight from St. Louis to Trenton?

Round-trip flights from St. Louis to Trenton typically range from $146 to $279. The lowest price found in the past 5 days was $280, on Frontier.

Which airline is the cheapest to fly from St. Louis to Trenton?

Frontier ($280) offered the cheapest round-trip ticket from St. Louis to Trenton in the last 5 days.

What is the cheapest layover airport when flying from St. Louis to Trenton?

Flights via Orlando (MCO) offer the most affordable fares, with an average round-trip price of $219. Based on KAYAK data over the past 3 months.

When flying from St. Louis to Trenton which airport offers the shortest layover?

Orlando (MCO) had the shortest average connection time for St. Louis to Trenton layovers at 6h 49m over the past 3 months.

$144 CHEAP FLIGHTS from St. Louis to Trenton (STL - TTN)

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Cheapest round-trip

$280

Typical prices: $146-$279

Frontier

Mon 11/19Thu 11/22

STL - TTN • 1 stop

Cheapest one-way

$144

Typical prices: $125-$145

Frontier

Mon 11/19

STL - TTN • 1 stop

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Flight Deals

Cheap Flights from St. Louis to Trenton (STL-TTN)

Discover the best prices for you by selecting your travel dates on KAYAK.

Round-trip

One-way

Last minute

Recent round-trip flight deals from St. Louis to Trenton

Wed, Dec 2 - Sat, Dec 5

6:13 pm - 10:13 amSTL Lambert-St Louis-TTN Trenton-Mercer

15h 00m1 stop Orlando

11:03 am - 12:12 amTTN Trenton-Mercer-STL Lambert-St Louis

14h 09m1 stop Orlando

$261Frontier

Thu, Nov 19 - Sun, Nov 22

4:26 pm - 10:34 amSTL Lambert-St Louis-TTN Trenton-Mercer

17h 08m1 stop Orlando

11:19 am - 12:25 pmTTN Trenton-Mercer-STL Lambert-St Louis

26h 06m1 stop Orlando

$280Frontier

Sat, Nov 21 - Mon, Nov 30

6:05 pm - 10:34 amSTL Lambert-St Louis-TTN Trenton-Mercer

15h 29m1 stop Orlando

11:19 am - 11:59 pmTTN Trenton-Mercer-STL Lambert-St Louis

13h 40m1 stop Orlando

$315Frontier

Fri, Nov 13 - Sun, Nov 15

4:26 pm - 7:15 pmSTL Lambert-St Louis-TTN Trenton-Mercer

25h 49m1 stop Orlando

8:01 pm - 11:16 pmTTN Trenton-Mercer-STL Lambert-St Louis

28h 15m1 stop Orlando

$320Frontier

Thu, Nov 26 - Tue, Dec 1

6:09 pm - 10:34 amSTL Lambert-St Louis-TTN Trenton-Mercer

15h 25m1 stop Orlando

11:03 am - 8:07 pmTTN Trenton-Mercer-STL Lambert-St Louis

10h 04m1 stop Orlando

$320Frontier

Tue, Nov 24 - Fri, Nov 27

6:05 pm - 10:34 amSTL Lambert-St Louis-TTN Trenton-Mercer

15h 29m1 stop Orlando

11:19 am - 11:59 pmTTN Trenton-Mercer-STL Lambert-St Louis

13h 40m1 stop Orlando

$335Frontier

Thu, Nov 12 - Sun, Nov 15

4:26 pm - 7:15 pmSTL Lambert-St Louis-TTN Trenton-Mercer

25h 49m1 stop Orlando

8:01 pm - 11:16 pmTTN Trenton-Mercer-STL Lambert-St Louis

28h 15m1 stop Orlando

$342Frontier

Fri, Nov 20 - Mon, Nov 23

1:20 pm - 10:34 amSTL Lambert-St Louis-TTN Trenton-Mercer

20h 14m1 stop Orlando

11:19 am - 11:59 pmTTN Trenton-Mercer-STL Lambert-St Louis

13h 40m1 stop Orlando

$355Frontier

Tue, Nov 24 - Sat, Nov 28

6:05 pm - 10:34 amSTL Lambert-St Louis-TTN Trenton-Mercer

15h 29m1 stop Orlando

11:19 am - 11:59 pmTTN Trenton-Mercer-STL Lambert-St Louis

13h 40m1 stop Orlando

$380Frontier

Booking Insights

Price, demand and travel trends for St. Louis to Trenton flights

Use KAYAK data on prices, travel dates, airlines and seasonal trends to compare options and book flights with more confidence.

Prices

Airlines

Layovers

How much is a round-trip flight from St. Louis to Trenton? This analysis is based on the cheapest round-trip price found on KAYAK in the last 12 months by searching for a flight from St. Louis to Trenton departing in november.

Find deals

Cheapest flight	$144

One-way flight from St. Louis to Trenton

When to book flights from St. Louis to Trenton

Are your dates flexible? Find out the best times to travel from St. Louis to Trenton based on our flight data from the last year. Discover the cheapest month and even day to fly.

Estimated round-trip price

KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

What cabin classes can I book on flights from St. Louis to Trenton?
Only Economy Class is available on flights from St. Louis to Trenton.
Do I need a passport to fly from St. Louis to Trenton?
No, a passport is not required for this domestic route, but you will need a real ID-compliant driver's license, a state ID or another TSA-accepted form of identification.
Have flight prices from St. Louis to Trenton changed much recently?
Yes. Based on fares seen in the past 5 days, round-trip prices on this route showed a wide range, from about $280 to $1,153. That means the highest observed fare was about 4x higher than the lowest one.
How are flight prices from St. Louis to Trenton looking right now?
One-way fares from St. Louis to Trenton are currently higher than usual. Average one-way flight prices are about $173, which is 20% above the typical average for this route.
Which airports can I use when flying from St. Louis to Trenton?
Flights from St. Louis to Trenton usually depart from Lambert-St Louis (STL) and arrive at Trenton-Mercer (TTN).
Which airports do connecting flights from St. Louis to Trenton pass through?
Most connecting flights from St. Louis to Trenton pass through Orlando (MCO), which handles 100% of one-stop traffic on this route.
Can I save money by using flexible dates for flights from St. Louis to Trenton?
Yes. Flexible dates can save you up to 48% on flights from St. Louis to Trenton. Saturday is the cheapest departure day at $146 round-trip on average, while Tuesday is the most expensive at $279, a difference of $133.

Cheaper weekend fares like these are typical of routes dominated by weekday business travel.
What is the time difference between St. Louis and Trenton?
Trenton is 1 hour ahead of St. Louis (Eastern Time vs Central Time). Plan for the time shift when scheduling connections or first-day activities.

If your dates are flexible, aim for a Saturday departure and avoid flying on Tuesday. On this route, Saturday flights average $146, about $133 less than Tuesday fares (48% savings) based on the last 12 months.

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$144 Find Cheap Flights from St. Louis to Trenton - Compare and Save

Everything you should know

Cheap Flights from St. Louis to Trenton (STL-TTN)

Recent round-trip flight deals from St. Louis to Trenton

Recent one-way flight deals from St. Louis to Trenton

Recent last minute flight deals from St. Louis to Trenton

Price, demand and travel trends for St. Louis to Trenton flights

How much is a round-trip flight from St. Louis to Trenton?

Which airline is the cheapest to fly from St. Louis to Trenton?

What is the cheapest layover airport when flying from St. Louis to Trenton?

When flying from St. Louis to Trenton which airport offers the shortest layover?

Key details for St. Louis to Trenton flights

Cheapest flight

When to book flights from St. Louis to Trenton

Your St. Louis to Trenton flight questions, answered

Your guide to booking St. Louis to Trenton flights

More options for your flight from St. Louis to Trenton

Complete your trip to Trenton with a hotel stay or car rental

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Cabin class types available on flights from St. Louis to Trenton

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Flights from domestic origins to Trenton

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