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Cheap flights from St. Louis to New York from $120

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 10/1. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
1 adult, Economy, 0 bags

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
6:39 pm - 6:42 pmSTL  Lambert-St Louis-TTN Trenton-Mercer
23h 03m1 stop Orlando
Frontier Logo
7:39 pm - 4:34 pmTTN  Trenton-Mercer-STL Lambert-St Louis
21h 55m1 stop Orlando
$257Frontier
Thu, Oct 1 - Sun, Oct 4
Frontier Logo
8:34 pm - 9:35 amSTL  Lambert-St Louis-TTN Trenton-Mercer
12h 01m1 stop Orlando
Frontier Logo
10:30 am - 7:39 pmTTN  Trenton-Mercer-STL Lambert-St Louis
10h 09m1 stop Orlando
$260Frontier
Sun, Nov 1 - Sat, Nov 7
Frontier Logo
8:34 pm - 9:35 amSTL  Lambert-St Louis-TTN Trenton-Mercer
12h 01m1 stop Orlando
Frontier Logo
10:30 am - 7:39 pmTTN  Trenton-Mercer-STL Lambert-St Louis
10h 09m1 stop Orlando
$262Frontier
Sun, Nov 1 - Sun, Nov 8
Frontier Logo
6:39 pm - 6:42 pmSTL  Lambert-St Louis-TTN Trenton-Mercer
23h 03m1 stop Orlando
Frontier Logo
7:39 pm - 4:34 pmTTN  Trenton-Mercer-STL Lambert-St Louis
21h 55m1 stop Orlando
$270Frontier
Thu, Sep 24 - Sun, Sep 27
Frontier Logo
5:19 pm - 6:42 pmSTL  Lambert-St Louis-TTN Trenton-Mercer
24h 23m1 stop Orlando
Frontier Logo
7:39 pm - 4:34 pmTTN  Trenton-Mercer-STL Lambert-St Louis
21h 55m1 stop Orlando
$273Frontier
Fri, Sep 18 - Sun, Sep 20
Frontier Logo
6:05 pm - 10:28 amSTL  Lambert-St Louis-TTN Trenton-Mercer
15h 23m1 stop Orlando
Frontier Logo
11:23 am - 12:41 amTTN  Trenton-Mercer-STL Lambert-St Louis
14h 18m1 stop Orlando
$279Frontier
Wed, Dec 9 - Mon, Dec 14
Frontier Logo
8:34 pm - 9:35 amSTL  Lambert-St Louis-TTN Trenton-Mercer
12h 01m1 stop Orlando
Frontier Logo
10:30 am - 7:39 pmTTN  Trenton-Mercer-STL Lambert-St Louis
10h 09m1 stop Orlando
$281Frontier
Sun, Nov 1 - Mon, Nov 9
Frontier Logo
6:39 pm - 6:42 pmSTL  Lambert-St Louis-TTN Trenton-Mercer
23h 03m1 stop Orlando
Frontier Logo
7:39 pm - 1:10 pmTTN  Trenton-Mercer-STL Lambert-St Louis
18h 31m2 stops Orlando Atlanta Hartsfield-Jackson
$286Frontier
Thu, Sep 24 - Sun, Sep 27
Frontier Logo
5:02 pm - 12:04 pmSTL  Lambert-St Louis-TTN Trenton-Mercer
18h 02m1 stop Orlando
Frontier Logo
7:39 pm - 4:34 pmTTN  Trenton-Mercer-STL Lambert-St Louis
21h 55m1 stop Orlando
$290Frontier
Sat, Sep 5 - Sat, Sep 12
Frontier Logo
4:23 pm - 11:40 pmSTL  Lambert-St Louis-TTN Trenton-Mercer
6h 17m1 stop Orlando
Frontier Logo
6:30 am - 3:28 pmTTN  Trenton-Mercer-STL Lambert-St Louis
9h 58m1 stop Orlando
$300Frontier
Fri, Aug 21 - Mon, Aug 24

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Frontier flights from St. Louis to Trenton, New Jersey

Our best Frontier deals on St. Louis to Trenton, New Jersey flight tickets
Frontier
Oct 1
STL6:39 pmLambert-St Louis
23h 03m
1 stop
TTN6:42 pmTrenton-Mercer
Oct 4
TTN7:39 pmTrenton-Mercer
21h 55m
1 stop
STL4:34 pmLambert-St Louis
$257
Frontier
Nov 1
STL8:34 pmLambert-St Louis
12h 01m
1 stop
TTN9:35 amTrenton-Mercer
Nov 7
TTN10:30 amTrenton-Mercer
10h 09m
1 stop
STL7:39 pmLambert-St Louis
$260
Frontier
Nov 1
STL8:34 pmLambert-St Louis
12h 01m
1 stop
TTN9:35 amTrenton-Mercer
Nov 8
TTN10:30 amTrenton-Mercer
10h 09m
1 stop
STL7:39 pmLambert-St Louis
$262

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 August 10, 2026.
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

Cheapest round-trip

St. LouisTrenton

STL Lambert-St Louis - TTN Trenton-Mercer

STLTTN

Lambert-St Louis

Thu 10/1

6:39 pm-6:42 pm

1 stop23h 03m

Trenton-Mercer

Sun 10/4

7:39 pm-4:34 pm

1 stop21h 55m

$257

St. LouisTrenton

STL Lambert-St Louis - TTN Trenton-Mercer

STLTTN

Lambert-St Louis

Sun 11/1

8:34 pm-9:35 am

1 stop12h 01m

Trenton-Mercer

Sat 11/7

10:30 am-7:39 pm

1 stop10h 09m

$260

St. LouisTrenton

STL Lambert-St Louis - TTN Trenton-Mercer

STLTTN

Lambert-St Louis

Sun 11/1

8:34 pm-9:35 am

1 stop12h 01m

Trenton-Mercer

Sun 11/8

10:30 am-7:39 pm

1 stop10h 09m

$262

St. LouisTrenton

STL Lambert-St Louis - TTN Trenton-Mercer

STLTTN

Lambert-St Louis

Thu 9/24

6:39 pm-6:42 pm

1 stop23h 03m

Trenton-Mercer

Sun 9/27

7:39 pm-4:34 pm

1 stop21h 55m

$270

St. LouisTrenton

STL Lambert-St Louis - TTN Trenton-Mercer

STLTTN

Lambert-St Louis

Fri 9/18

5:19 pm-6:42 pm

1 stop24h 23m

Trenton-Mercer

Sun 9/20

7:39 pm-4:34 pm

1 stop21h 55m

$273

St. LouisTrenton

STL Lambert-St Louis - TTN Trenton-Mercer

STLTTN

Lambert-St Louis

Wed 12/9

6:05 pm-10:28 am

1 stop15h 23m

Trenton-Mercer

Mon 12/14

11:23 am-12:41 am

1 stop14h 18m

$279

St. LouisTrenton

STL Lambert-St Louis - TTN Trenton-Mercer

STLTTN

Lambert-St Louis

Sun 11/1

8:34 pm-9:35 am

1 stop12h 01m

Trenton-Mercer

Mon 11/9

10:30 am-7:39 pm

1 stop10h 09m

$281

St. LouisTrenton

STL Lambert-St Louis - TTN Trenton-Mercer

STLTTN

Lambert-St Louis

Thu 9/24

6:39 pm-6:42 pm

1 stop23h 03m

Trenton-Mercer

Sun 9/27

7:39 pm-1:10 pm

2 stops18h 31m

$286

St. LouisTrenton

STL Lambert-St Louis - TTN Trenton-Mercer

STLTTN

Lambert-St Louis

Sat 9/5

5:02 pm-12:04 pm

1 stop18h 02m

Trenton-Mercer

Sat 9/12

7:39 pm-4:34 pm

1 stop21h 55m

$290
Quickest round-trip

St. LouisTrenton

STL Lambert-St Louis - TTN Trenton-Mercer

STLTTN

Lambert-St Louis

Fri 8/21

4:23 pm-11:40 pm

1 stop6h 17m

Trenton-Mercer

Mon 8/24

6:30 am-3:28 pm

1 stop9h 58m

$300

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 18 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, United Airlines and Delta 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 37% of people opting to fly with this airline when traveling to Trenton, New Jersey. Keep in mind that there are 5 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

6h 17m

Direct flights

None
The fastest flight from St. Louis to Trenton, New Jersey takes 6h 17m
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.
Search flight deals

Frequently asked questions about flying from St. Louis to Trenton, New Jersey

  • How far is Lambert-St Louis to Trenton-Mercer by plane?

    Trenton-Mercer is 829.7 mi away from Lambert-St Louis. 6h 17m 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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