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Cheap flights from St. Louis to New York from $104

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 8/4. 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
4:09 pm - 11:40 pm
STL
-
TTN
6h 31m
1 stop
Frontier Logo
9:23 am - 11:59 pm
TTN
-
STL
15h 36m
1 stop
$220Frontier
Tue, Jul 28 - Tue, Aug 4
Frontier Logo
4:09 pm - 8:38 am
STL
-
TTN
15h 29m
1 stop
Frontier Logo
9:23 am - 11:59 pm
TTN
-
STL
15h 36m
1 stop
$234Frontier
Sat, Aug 1 - Tue, Aug 4
Frontier Logo
4:09 pm - 8:38 am
STL
-
TTN
15h 29m
1 stop
Frontier Logo
6:05 am - 11:59 pm
TTN
-
STL
18h 54m
1 stop
$263Frontier
Sat, Jul 25 - Thu, Jul 30
Frontier Logo
4:23 pm - 11:40 pm
STL
-
TTN
6h 17m
1 stop
Frontier Logo
6:30 am - 3:28 pm
TTN
-
STL
9h 58m
1 stop
$264Frontier
Fri, Aug 21 - Mon, Aug 24
Frontier Logo
4:09 pm - 11:40 pm
STL
-
TTN
6h 31m
1 stop
Frontier Logo
11:15 am - 11:59 pm
TTN
-
STL
13h 44m
1 stop
$268Frontier
Mon, Jul 20 - Thu, Aug 6
Frontier Logo
4:09 pm - 11:40 pm
STL
-
TTN
6h 31m
1 stop
Frontier Logo
6:05 am - 11:59 pm
TTN
-
STL
18h 54m
1 stop
$269Frontier
Fri, Jul 31 - Mon, Aug 3
Frontier Logo
8:34 pm - 9:35 am
STL
-
TTN
12h 01m
1 stop
Frontier Logo
10:30 am - 7:39 pm
TTN
-
STL
10h 09m
1 stop
$270Frontier
Fri, Sep 18 - Sun, Sep 20
Frontier Logo
4:09 pm - 11:40 pm
STL
-
TTN
6h 31m
1 stop
Frontier Logo
6:05 am - 11:59 pm
TTN
-
STL
18h 54m
1 stop
$279Frontier
Sat, Aug 1 - Mon, Aug 3
Frontier Logo
8:34 pm - 9:35 am
STL
-
TTN
12h 01m
1 stop
Frontier Logo
10:30 am - 7:39 pm
TTN
-
STL
10h 09m
1 stop
$284Frontier
Fri, Sep 11 - Mon, Sep 14
Frontier Logo
4:09 pm - 11:40 pm
STL
-
TTN
6h 31m
1 stop
Frontier Logo
9:23 am - 11:59 pm
TTN
-
STL
15h 36m
1 stop
$289Frontier
Fri, Jul 10 - Thu, Jul 16

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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
Jul 28
STL4:09 pmLambert-St Louis
6h 31m
1 stop
TTN11:40 pmTrenton-Mercer
Aug 4
TTN9:23 amTrenton-Mercer
15h 36m
1 stop
STL11:59 pmLambert-St Louis
$220
Frontier
Aug 1
STL4:09 pmLambert-St Louis
15h 29m
1 stop
TTN8:38 amTrenton-Mercer
Aug 4
TTN9:23 amTrenton-Mercer
15h 36m
1 stop
STL11:59 pmLambert-St Louis
$234
Frontier
Jul 25
STL4:09 pmLambert-St Louis
15h 29m
1 stop
TTN8:38 amTrenton-Mercer
Jul 30
TTN6:05 amTrenton-Mercer
18h 54m
1 stop
STL11:59 pmLambert-St Louis
$263

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 June 29, 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 - TTN

STLTTN

Lambert-St Louis

Tue 7/28

4:09 pm-11:40 pm

1 stop6h 31m

Trenton-Mercer

Tue 8/4

9:23 am-11:59 pm

1 stop15h 36m

$220

St. LouisTrenton

STL - TTN

STLTTN

Lambert-St Louis

Sat 8/1

4:09 pm-8:38 am

1 stop15h 29m

Trenton-Mercer

Tue 8/4

9:23 am-11:59 pm

1 stop15h 36m

$234

St. LouisTrenton

STL - TTN

STLTTN

Lambert-St Louis

Sat 7/25

4:09 pm-8:38 am

1 stop15h 29m

Trenton-Mercer

Thu 7/30

6:05 am-11:59 pm

1 stop18h 54m

$263
Quickest round-trip

St. LouisTrenton

STL - TTN

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

$264

St. LouisTrenton

STL - TTN

STLTTN

Lambert-St Louis

Mon 7/20

4:09 pm-11:40 pm

1 stop6h 31m

Trenton-Mercer

Thu 8/6

11:15 am-11:59 pm

1 stop13h 44m

$268

St. LouisTrenton

STL - TTN

STLTTN

Lambert-St Louis

Fri 7/31

4:09 pm-11:40 pm

1 stop6h 31m

Trenton-Mercer

Mon 8/3

6:05 am-11:59 pm

1 stop18h 54m

$269

St. LouisTrenton

STL - TTN

STLTTN

Lambert-St Louis

Fri 9/18

8:34 pm-9:35 am

1 stop12h 01m

Trenton-Mercer

Sun 9/20

10:30 am-7:39 pm

1 stop10h 09m

$270

St. LouisTrenton

STL - TTN

STLTTN

Lambert-St Louis

Sat 8/1

4:09 pm-11:40 pm

1 stop6h 31m

Trenton-Mercer

Mon 8/3

6:05 am-11:59 pm

1 stop18h 54m

$279

St. LouisTrenton

STL - TTN

STLTTN

Lambert-St Louis

Fri 9/11

8:34 pm-9:35 am

1 stop12h 01m

Trenton-Mercer

Mon 9/14

10:30 am-7:39 pm

1 stop10h 09m

$284

St. LouisTrenton

STL - TTN

STLTTN

Lambert-St Louis

Fri 7/10

4:09 pm-11:40 pm

1 stop6h 31m

Trenton-Mercer

Thu 7/16

9:23 am-11:59 pm

1 stop15h 36m

$289

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to New York from

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 39% 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 31m

Direct flights

None
The fastest flight from St. Louis to Trenton, New Jersey takes 6h 31m
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 31m 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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