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

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

What popular places can I visit in St. Louis?

Some of the most popular sights in St. Louis are Busch Stadium, Enterprise Center and America's Center Convention Complex. These are among the most viewed places in St. Louis on KAYAK.

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

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 Trenton to St. Louis 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 $216 to $1,076. That means the highest observed fare was about 5x higher than the lowest one.

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

One-way fares from Trenton to St. Louis are currently in line with typical prices for this route. Average one-way fares are about $166.

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

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

What car rental options are available at Lambert-St Louis Airport (STL)?

Lambert-St Louis Airport (STL) hosts 5 major car rental companies, with daily rates averaging $78 for economy cars. Top options include: • Hertz • Budget • Alamo • Enterprise Rent-A-Car • Payless

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

Frontier ($216) offered the cheapest round-trip ticket from Trenton to St. Louis in the last 5 days.

$104 CHEAP FLIGHTS from Trenton to St. Louis (TTN - STL)

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Cheapest one-way

$104

Typical prices: $171-$171

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Sat 12/15

TTN - STL • 1 stop

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Flight Deals

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

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 Trenton to St. Louis

Tue, Dec 8 - Wed, Dec 9

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

14h 09m1 stop Orlando

6:20 pm - 10:18 amSTL Lambert-St Louis-TTN Trenton-Mercer

14h 58m1 stop Orlando

$216Frontier

Mon, Nov 23 - Wed, Nov 25

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

13h 40m1 stop Orlando

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

20h 14m1 stop Orlando

$235Frontier

Sat, Dec 19 - Wed, Dec 23

8:26 pm - 12:41 amTTN Trenton-Mercer-STL Lambert-St Louis

29h 15m1 stop Orlando

5:58 pm - 11:01 amSTL Lambert-St Louis-TTN Trenton-Mercer

16h 03m1 stop Orlando

$239Frontier

Sat, Nov 21 - Sun, Nov 22

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

13h 40m1 stop Orlando

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

15h 29m1 stop Orlando

$240Frontier

Fri, Nov 20 - Sun, Nov 22

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

26h 06m1 stop Orlando

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

15h 29m1 stop Orlando

$280Frontier

Tue, Dec 8 - Wed, Dec 9

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

14h 09m1 stop Orlando

12:02 pm - 10:18 amSTL Lambert-St Louis-TTN Trenton-Mercer

21h 16m2 stops Atlanta Hartsfield-Jackson Orlando

$284Frontier

Mon, Nov 23 - Wed, Nov 25

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

13h 40m1 stop Orlando

6:35 pm - 10:34 amSTL Lambert-St Louis-TTN Trenton-Mercer

14h 59m2 stops Atlanta Hartsfield-Jackson Orlando

$308Frontier

Fri, Nov 27 - Mon, Nov 30

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

13h 40m1 stop Orlando

6:05 pm - 10:13 amSTL Lambert-St Louis-TTN Trenton-Mercer

15h 08m1 stop Orlando

$314Frontier

Sun, Nov 15 - Thu, Nov 19

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

28h 15m1 stop Orlando

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

17h 08m1 stop Orlando

$316Frontier

Fri, Nov 13 - Sun, Nov 15

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

28h 15m1 stop Orlando

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

25h 49m1 stop Orlando

$320Frontier

Booking Insights

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

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

Which airline is the cheapest to fly from Trenton to St. Louis?: Frontier ($216) offered the cheapest round-trip ticket from Trenton to St. Louis in the last 5 days.

Find deals

Cheapest flight	$104

One-way flight from Trenton to St. Louis

When to book flights from Trenton to St. Louis

Are your dates flexible? Find out the best times to travel from Trenton to St. Louis 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.

Do I need a passport to fly from Trenton to St. Louis?
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 Trenton to St. Louis 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 $216 to $1,076. That means the highest observed fare was about 5x higher than the lowest one.
How are flight prices from Trenton to St. Louis looking right now?
One-way fares from Trenton to St. Louis are currently in line with typical prices for this route. Average one-way fares are about $166.
What car rental options are available at Lambert-St Louis Airport (STL)?
Lambert-St Louis Airport (STL) hosts 5 major car rental companies, with daily rates averaging $78 for economy cars. Top options include:

• Hertz
• Budget
• Alamo
• Enterprise Rent-A-Car
• Payless
Which airports can I use when flying from Trenton to St. Louis?
Flights from Trenton to St. Louis usually depart from Trenton-Mercer (TTN) and arrive at Lambert-St Louis (STL).
What is the time difference between Trenton and St. Louis?
St. Louis is 1 hour behind Trenton (Central Time vs Eastern Time). Plan for the time shift when scheduling connections or first-day activities.
What popular places can I visit in St. Louis?
Some of the most popular sights in St. Louis are Busch Stadium, Enterprise Center and America's Center Convention Complex. These are among the most viewed places in St. Louis on KAYAK.

If you're arriving late at night and need somewhere to stay, check out these hotels close to Lambert-St Louis Airport.

• Renaissance St. Louis Airport Hotel
• Drury Inn & Suites St. Louis Airport
• DoubleTree by Hilton St. Louis Airport

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Everything you should know

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

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

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

Recent last minute flight deals from Trenton to St. Louis

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

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

Key details for Trenton to St. Louis flights

Cheapest flight

When to book flights from Trenton to St. Louis

Your Trenton to St. Louis flight questions, answered

Your guide to booking Trenton to St. Louis flights

More options for your flight from Trenton to St. Louis

Complete your trip to St. Louis with a hotel stay or car rental

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