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Cheap flights from St. Louis to New York from $55

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from St. Louis to New York departing on 12/13. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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0 bags

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Find the cheapest flights from St. Louis to New York

Cheap round-trip flights

Enter your travel dates to find the best prices.
Frontier Logo
3:30 pm - 11:59 pmSTL-TTN
7h 29m1 stop
Frontier Logo
6:10 am - 10:33 pmTTN-STL
17h 23m1 stop
$111Frontier
Find Deal
Sat, Dec 6 - Mon, Dec 8
Frontier Logo
3:30 pm - 11:59 pmSTL-TTN
7h 29m1 stop
Frontier Logo
9:08 pm - 8:59 amTTN-STL
12h 51m1 stop
$124Frontier
Find Deal
Thu, Dec 4 - Sun, Dec 14
Frontier Logo
7:24 pm - 11:49 amSTL-TTN
15h 25m1 stop
Frontier Logo
9:36 pm - 11:57 pmTTN-STL
27h 21m1 stop
$127Frontier
Find Deal
Wed, Nov 19 - Sun, Nov 23
Frontier Logo
5:11 pm - 11:59 pmSTL-TTN
5h 48m1 stop
Frontier Logo
8:10 am - 10:33 pmTTN-STL
15h 23m1 stop
$135Frontier
Find Deal
Fri, Jan 23 - Sat, Jan 31
Frontier Logo
9:54 am - 5:03 pmSTL-TTN
6h 09m1 stop
Frontier Logo
9:08 pm - 8:59 amTTN-STL
12h 51m1 stop
$138Frontier
Find Deal
Fri, Dec 5 - Sun, Dec 14
Frontier Logo
3:30 pm - 11:59 pmSTL-TTN
7h 29m1 stop
Frontier Logo
9:08 pm - 8:59 amTTN-STL
12h 51m1 stop
$142Frontier
Find Deal
Sun, Dec 7 - Sun, Dec 14
Frontier Logo
5:11 pm - 11:59 pmSTL-TTN
5h 48m1 stop
Frontier Logo
9:59 pm - 10:37 pmTTN-STL
25h 38m1 stop
$156Frontier
Find Deal
Fri, Jan 9 - Mon, Jan 12
Frontier Logo
3:30 pm - 11:59 pmSTL-TTN
7h 29m1 stop
Frontier Logo
6:10 am - 10:33 pmTTN-STL
17h 23m1 stop
$196Frontier
Find Deal
Thu, Dec 11 - Fri, Dec 12
Frontier Logo
5:11 pm - 10:02 pmSTL-TTN
27h 51m1 stop
Frontier Logo
7:00 am - 10:33 pmTTN-STL
16h 33m1 stop
$230Frontier
Find Deal
Fri, Jan 30 - Mon, Feb 2
Frontier Logo
7:24 pm - 5:49 pmSTL-TTN
21h 25m2 stops
Frontier Logo
9:36 pm - 11:57 pmTTN-STL
27h 21m1 stop
$231Frontier
Find Deal
Wed, Nov 19 - Sun, Nov 23

Frontier flights from St. Louis to Trenton, New Jersey

Our best Frontier deals on St. Louis to Trenton, New Jersey flight tickets
Frontier
Dec 6
STL3:30 pmLambert-St Louis
7h 29m
1 stop
TTN11:59 pmTrenton-Mercer
Dec 8
TTN6:10 amTrenton-Mercer
17h 23m
1 stop
STL10:33 pmLambert-St Louis
$111
Find similar
Frontier
Dec 4
STL3:30 pmLambert-St Louis
7h 29m
1 stop
TTN11:59 pmTrenton-Mercer
Dec 14
TTN9:08 pmTrenton-Mercer
12h 51m
1 stop
STL8:59 amLambert-St Louis
$124
Find similar
Frontier
Nov 19
STL7:24 pmLambert-St Louis
15h 25m
1 stop
TTN11:49 amTrenton-Mercer
Nov 23
TTN9:36 pmTrenton-Mercer
27h 21m
1 stop
STL11:57 pmLambert-St Louis
$127
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from St. Louis to Trenton, New Jersey that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, momondo users made 832,500 searches. Data last updated November 5, 2025.
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

Sat 12/6

3:30 pm-11:59 pm

1 stop7h 29m

Trenton-Mercer

Mon 12/8

6:10 am-10:33 pm

1 stop17h 23m

$111

St. LouisTrenton

STL - TTN

STLTTN

Lambert-St Louis

Thu 12/4

3:30 pm-11:59 pm

1 stop7h 29m

Trenton-Mercer

Sun 12/14

9:08 pm-8:59 am

1 stop12h 51m

$124

St. LouisTrenton

STL - TTN

STLTTN

Lambert-St Louis

Wed 11/19

7:24 pm-11:49 am

1 stop15h 25m

Trenton-Mercer

Sun 11/23

9:36 pm-11:57 pm

1 stop27h 21m

$127

St. LouisTrenton

STL - TTN

STLTTN

Lambert-St Louis

Fri 1/23

5:11 pm-11:59 pm

1 stop5h 48m

Trenton-Mercer

Sat 1/31

8:10 am-10:33 pm

1 stop15h 23m

$135

St. LouisTrenton

STL - TTN

STLTTN

Lambert-St Louis

Fri 12/5

9:54 am-5:03 pm

1 stop6h 09m

Trenton-Mercer

Sun 12/14

9:08 pm-8:59 am

1 stop12h 51m

$138

St. LouisTrenton

STL - TTN

STLTTN

Lambert-St Louis

Sun 12/7

3:30 pm-11:59 pm

1 stop7h 29m

Trenton-Mercer

Sun 12/14

9:08 pm-8:59 am

1 stop12h 51m

$142

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

9:59 pm-10:37 pm

1 stop25h 38m

$156

St. LouisTrenton

STL - TTN

STLTTN

Lambert-St Louis

Thu 12/11

3:30 pm-11:59 pm

1 stop7h 29m

Trenton-Mercer

Fri 12/12

6:10 am-10:33 pm

1 stop17h 23m

$196

St. LouisTrenton

STL - TTN

STLTTN

Lambert-St Louis

Fri 1/30

5:11 pm-10:02 pm

1 stop27h 51m

Trenton-Mercer

Mon 2/2

7:00 am-10:33 pm

1 stop16h 33m

$230

St. LouisTrenton

STL - TTN

STLTTN

Lambert-St Louis

Wed 11/19

7:24 pm-5:49 pm

2 stops21h 25m

Trenton-Mercer

Sun 11/23

9:36 pm-11:57 pm

1 stop27h 21m

$231

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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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

Direct flights

None
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.

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