When did momondo last update prices for flights from Lambert-St Louis Airport to Trenton-Mercer Airport?

Prices for flights from Lambert-St Louis Airport to Trenton-Mercer Airport were last updated today.

How old do you have to be to fly from Lambert-St Louis Airport to Trenton-Mercer Airport?

The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Lambert-St Louis Airport to Trenton-Mercer Airport.

What documentation or ID do you need to fly to Trenton-Mercer Airport?

The travel and health documents you'll need for your trip to Trenton-Mercer Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Trenton-Mercer Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

$89 Cheap Flights from St. Louis to Trenton in 2025/26

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Cheap round-trip flights

Enter your travel dates to find the best prices.

5:11 pm - 9:56 pm

STL

TTN

27h 45m1 stop

2:32 pm - 10:33 pm

TTN

STL

9h 01m1 stop

$170Frontier

Tue, Jan 6 - Thu, Jan 8

5:11 pm - 1:32 pm

STL

TTN

19h 21m1 stop

8:00 am - 10:34 pm

TTN

STL

15h 34m1 stop

$175Frontier

Wed, Jan 7 - Tue, Jan 13

3:49 pm - 11:39 pm

STL

TTN

6h 50m1 stop

3:04 pm - 11:19 pm

TTN

STL

9h 15m1 stop

$214Frontier

Sat, Feb 28 - Mon, Mar 9

5:11 pm - 11:59 pm

STL

TTN

5h 48m1 stop

6:00 am - 10:33 pm

TTN

STL

17h 33m1 stop

$226Frontier

Fri, Jan 9 - Mon, Jan 12

5:42 pm - 11:09 am

STL

TTN

16h 27m1 stop

9:06 pm - 9:21 am

TTN

STL

13h 15m1 stop

$246Frontier

Fri, Jan 30 - Sun, Feb 1

5:42 pm - 2:26 pm

STL

TTN

19h 44m1 stop

9:06 pm - 11:33 pm

TTN

STL

27h 27m1 stop

$262Frontier

Tue, Feb 3 - Sun, Feb 8

3:30 pm - 11:59 pm

STL

TTN

7h 29m1 stop

9:59 pm - 7:13 am

TTN

STL

10h 14m1 stop

$268Frontier

Thu, Apr 9 - Sun, Apr 12

3:30 pm - 11:59 pm

STL

TTN

7h 29m1 stop

9:59 pm - 7:13 am

TTN

STL

10h 14m1 stop

$332Frontier

Thu, Apr 2 - Sun, Apr 5

12:12 pm - 7:24 pm

STL

TTN

6h 12m1 stop

12:04 pm - 11:33 pm

TTN

STL

12h 29m1 stop

$375Frontier

Sat, Jan 31 - Thu, Feb 5

4:27 pm - 11:59 pm

STL

TTN

6h 32m1 stop

2:32 pm - 10:33 pm

TTN

STL

9h 01m1 stop

$392Frontier

Sun, Jan 4 - Thu, Jan 8

Frontier flights from St. Louis to Trenton, New Jersey

Our best Frontier deals on St. Louis to Trenton, New Jersey flight tickets

Frontier

Jan 6

STL5:11 pmLambert-St Louis

27h 45m

1 stop

TTN9:56 pmTrenton-Mercer

Jan 8

TTN2:32 pmTrenton-Mercer

9h 01m

1 stop

STL10:33 pmLambert-St Louis

$170

Find similar

Frontier

Jan 7

STL5:11 pmLambert-St Louis

19h 21m

1 stop

TTN1:32 pmTrenton-Mercer

Jan 13

TTN8:00 amTrenton-Mercer

15h 34m

1 stop

STL10:34 pmLambert-St Louis

$175

Find similar

Frontier

Feb 28

STL3:49 pmLambert-St Louis

6h 50m

1 stop

TTN11:39 pmTrenton-Mercer

Mar 9

TTN3:04 pmTrenton-Mercer

9h 15m

1 stop

STL11:19 pmLambert-St Louis

$214

Find similar

momondo Fare Finder

Use the filters below to find and compare flights from St. Louis to Trenton, New Jersey that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

St. LouisTrenton

STL - TTN

STLTTN

Lambert-St Louis

Tue 1/6

5:11 pm-9:56 pm

1 stop27h 45m

Trenton-Mercer

Thu 1/8

2:32 pm-10:33 pm

1 stop9h 01m

$170

St. LouisTrenton

STL - TTN

STLTTN

Lambert-St Louis

Wed 1/7

5:11 pm-1:32 pm

1 stop19h 21m

Trenton-Mercer

Tue 1/13

8:00 am-10:34 pm

1 stop15h 34m

$175

St. LouisTrenton

STL - TTN

STLTTN

Lambert-St Louis

Sat 2/28

3:49 pm-11:39 pm

1 stop6h 50m

Trenton-Mercer

Mon 3/9

3:04 pm-11:19 pm

1 stop9h 15m

$214

St. LouisTrenton

STL - TTN

STLTTN

Lambert-St Louis

Fri 1/9

5:11 pm-11:59 pm

1 stop5h 48m

Trenton-Mercer

Mon 1/12

6:00 am-10:33 pm

1 stop17h 33m

$226

St. LouisTrenton

STL - TTN

STLTTN

Lambert-St Louis

Fri 1/30

5:42 pm-11:09 am

1 stop16h 27m

Trenton-Mercer

Sun 2/1

9:06 pm-9:21 am

1 stop13h 15m

$246

St. LouisTrenton

STL - TTN

STLTTN

Lambert-St Louis

Tue 2/3

5:42 pm-2:26 pm

1 stop19h 44m

Trenton-Mercer

Sun 2/8

9:06 pm-11:33 pm

1 stop27h 27m

$262

St. LouisTrenton

STL - TTN

STLTTN

Lambert-St Louis

Thu 4/9

3:30 pm-11:59 pm

1 stop7h 29m

Trenton-Mercer

Sun 4/12

9:59 pm-7:13 am

1 stop10h 14m

$268

St. LouisTrenton

STL - TTN

STLTTN

Lambert-St Louis

Thu 4/2

3:30 pm-11:59 pm

1 stop7h 29m

Trenton-Mercer

Sun 4/5

9:59 pm-7:13 am

1 stop10h 14m

$332

St. LouisTrenton

STL - TTN

STLTTN

Lambert-St Louis

Sat 1/31

12:12 pm-7:24 pm

1 stop6h 12m

Trenton-Mercer

Thu 2/5

12:04 pm-11:33 pm

1 stop12h 29m

$375

St. LouisTrenton

STL - TTN

STLTTN

Lambert-St Louis

Sun 1/4

4:27 pm-11:59 pm

1 stop6h 32m

Trenton-Mercer

Thu 1/8

2:32 pm-10:33 pm

1 stop9h 01m

$392

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

How to get the cheapest flight ticket from St. Louis to Trenton, New Jersey

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest airline that flies from Lambert-St Louis to Trenton-Mercer?

Frontier is the most popular carrier operating from Lambert-St Louis to Trenton-Mercer

What airlines fly to Trenton, New Jersey?

American Airlines, Delta and United Airlines are the top three most popular airlines that fly to Trenton, New Jersey from St. Louis according to our data. American Airlines is the first choice among our users, with 41% of people opting to fly with this airline when traveling to Trenton, New Jersey. Keep in mind that there are 6 different airlines that fly to Trenton, New Jersey on a routine basis, so you have a few additional options to choose from.

When to book flights from St. Louis to Trenton, New Jersey

Are you open to changing your travel dates? Check out the ideal times to fly from St. Louis to Trenton, New Jersey according to our flight data. Find out which month and days have the cheapest flights.

Estimated round-trip price

Cheap St. Louis to Trenton, New Jersey (STL to TTN) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from St. Louis to Trenton, New Jersey

Fastest flight time	5h 48m
Direct flights	None

The fastest flight from St. Louis to Trenton, New Jersey takes 5h 48m

There are no direct flights from St. Louis to Trenton, New Jersey. There are no popular flight routes from St. Louis to Trenton, New Jersey.

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How far is Lambert-St Louis to Trenton-Mercer by plane?
Trenton-Mercer is 829.7 mi away from Lambert-St Louis. 5h 48m is a normal flight duration for this route.
When did momondo last update prices for flights from Lambert-St Louis Airport to Trenton-Mercer Airport?
Prices for flights from Lambert-St Louis Airport to Trenton-Mercer Airport were last updated today.
How old do you have to be to fly from Lambert-St Louis Airport to Trenton-Mercer Airport?
The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Lambert-St Louis Airport to Trenton-Mercer Airport.
What documentation or ID do you need to fly to Trenton-Mercer Airport?
The travel and health documents you'll need for your trip to Trenton-Mercer Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Trenton-Mercer Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

Why use momondo?

Why should I use momondo to find a flight deal from St. Louis to Trenton?

Finding the right flight to Trenton from St. Louis is quick and easy when you have a range of options in front of you, from reputable agents and recognisable airlines. Options that can then be filtered down to find the best fit. That is what momondo does. We make finding flights to Trenton quick and easy, saving you time and money.

Can I find flights from St. Louis to Trenton with flexible booking policies on momondo?

Yes. momondo allows you to filter the results for St. Louis to Trenton flights to just show those with flexible booking policies.

How can momondo help me find flights from St. Louis to Trenton?

momondo offers useful filters to help you find the right flight. Choose specific flight times, airports or even what payment method you prefer. We have numerous options to help you book your ideal flight from St. Louis to Trenton.

I’m not ready to book a flight from St. Louis to Trenton right now. Can momondo alert me if prices change?

Of course. momondo tracks the price of St. Louis to Trenton flights. All you need is a valid email address and we will do the rest; it is that quick and easy.