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Cheap flights from St. Louis to New York from $100

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 6/9. 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
4:17 pm - 7:48 pm
STL
-
TTN
26h 31m
1 stop
Frontier Logo
8:33 pm - 11:49 pm
TTN
-
STL
28h 16m
1 stop
$190Frontier
Tue, Jun 9 - Tue, Jun 16
Frontier Logo
4:09 pm - 9:58 am
STL
-
TTN
16h 49m
1 stop
Frontier Logo
8:33 pm - 11:59 pm
TTN
-
STL
28h 26m
1 stop
$200Frontier
Tue, Jul 14 - Thu, Jul 23
Frontier Logo
4:17 pm - 8:34 am
STL
-
TTN
15h 17m
1 stop
Frontier Logo
9:37 pm - 11:49 pm
TTN
-
STL
27h 12m
1 stop
$204Frontier
Wed, Jun 10 - Sat, Jun 13
Frontier Logo
4:09 pm - 7:48 pm
STL
-
TTN
26h 39m
1 stop
Frontier Logo
8:33 pm - 11:59 pm
TTN
-
STL
28h 26m
1 stop
$209Frontier
Tue, Jul 21 - Thu, Jul 23
Frontier Logo
4:09 pm - 9:58 am
STL
-
TTN
16h 49m
1 stop
Frontier Logo
8:33 pm - 11:59 pm
TTN
-
STL
28h 26m
1 stop
$210Frontier
Mon, Jul 13 - Thu, Jul 16
Frontier Logo
4:09 pm - 9:58 am
STL
-
TTN
16h 49m
1 stop
Frontier Logo
8:33 pm - 12:14 am
TTN
-
STL
28h 41m
1 stop
$216Frontier
Wed, Aug 12 - Mon, Aug 17
Frontier Logo
4:19 pm - 9:42 am
STL
-
TTN
16h 23m
1 stop
Frontier Logo
8:33 pm - 11:49 pm
TTN
-
STL
28h 16m
1 stop
$217Frontier
Thu, Jun 4 - Tue, Jun 9
Frontier Logo
4:19 pm - 9:42 am
STL
-
TTN
16h 23m
1 stop
Frontier Logo
9:37 pm - 11:49 pm
TTN
-
STL
27h 12m
1 stop
$218Frontier
Sat, Jun 6 - Sat, Jun 13
Frontier Logo
4:09 pm - 9:58 am
STL
-
TTN
16h 49m
1 stop
Frontier Logo
8:33 pm - 11:59 pm
TTN
-
STL
28h 26m
1 stop
$219Frontier
Fri, Aug 7 - Mon, Aug 10
Frontier Logo
11:24 am - 7:46 pm
STL
-
TTN
7h 22m
1 stop
Frontier Logo
10:27 am - 11:57 pm
TTN
-
STL
14h 30m
1 stop
$222Frontier
Fri, Jun 5 - Sun, Jun 7

Frontier flights from St. Louis to Trenton, New Jersey

Our best Frontier deals on St. Louis to Trenton, New Jersey flight tickets
Frontier
Jun 9
STL4:17 pmLambert-St Louis
26h 31m
1 stop
TTN7:48 pmTrenton-Mercer
Jun 16
TTN8:33 pmTrenton-Mercer
28h 16m
1 stop
STL11:49 pmLambert-St Louis
$190
Frontier
Jul 14
STL4:09 pmLambert-St Louis
16h 49m
1 stop
TTN9:58 amTrenton-Mercer
Jul 23
TTN8:33 pmTrenton-Mercer
28h 26m
1 stop
STL11:59 pmLambert-St Louis
$200
Frontier
Jun 10
STL4:17 pmLambert-St Louis
15h 17m
1 stop
TTN8:34 amTrenton-Mercer
Jun 13
TTN9:37 pmTrenton-Mercer
27h 12m
1 stop
STL11:49 pmLambert-St Louis
$204

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 May 15, 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 6/9

4:17 pm-7:48 pm

1 stop26h 31m

Trenton-Mercer

Tue 6/16

8:33 pm-11:49 pm

1 stop28h 16m

$190

St. LouisTrenton

STL - TTN

STLTTN

Lambert-St Louis

Tue 7/14

4:09 pm-9:58 am

1 stop16h 49m

Trenton-Mercer

Thu 7/23

8:33 pm-11:59 pm

1 stop28h 26m

$200

St. LouisTrenton

STL - TTN

STLTTN

Lambert-St Louis

Wed 6/10

4:17 pm-8:34 am

1 stop15h 17m

Trenton-Mercer

Sat 6/13

9:37 pm-11:49 pm

1 stop27h 12m

$204

St. LouisTrenton

STL - TTN

STLTTN

Lambert-St Louis

Tue 7/21

4:09 pm-7:48 pm

1 stop26h 39m

Trenton-Mercer

Thu 7/23

8:33 pm-11:59 pm

1 stop28h 26m

$209

St. LouisTrenton

STL - TTN

STLTTN

Lambert-St Louis

Mon 7/13

4:09 pm-9:58 am

1 stop16h 49m

Trenton-Mercer

Thu 7/16

8:33 pm-11:59 pm

1 stop28h 26m

$210

St. LouisTrenton

STL - TTN

STLTTN

Lambert-St Louis

Wed 8/12

4:09 pm-9:58 am

1 stop16h 49m

Trenton-Mercer

Mon 8/17

8:33 pm-12:14 am

1 stop28h 41m

$216

St. LouisTrenton

STL - TTN

STLTTN

Lambert-St Louis

Thu 6/4

4:19 pm-9:42 am

1 stop16h 23m

Trenton-Mercer

Tue 6/9

8:33 pm-11:49 pm

1 stop28h 16m

$217

St. LouisTrenton

STL - TTN

STLTTN

Lambert-St Louis

Sat 6/6

4:19 pm-9:42 am

1 stop16h 23m

Trenton-Mercer

Sat 6/13

9:37 pm-11:49 pm

1 stop27h 12m

$218

St. LouisTrenton

STL - TTN

STLTTN

Lambert-St Louis

Fri 8/7

4:09 pm-9:58 am

1 stop16h 49m

Trenton-Mercer

Mon 8/10

8:33 pm-11:59 pm

1 stop28h 26m

$219
Quickest round-trip

St. LouisTrenton

STL - TTN

STLTTN

Lambert-St Louis

Fri 6/5

11:24 am-7:46 pm

1 stop7h 22m

Trenton-Mercer

Sun 6/7

10:27 am-11:57 pm

1 stop14h 30m

$222

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 40% 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

12h 01m

Direct flights

None
The fastest flight from St. Louis to Trenton, New Jersey takes 12h 01m
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. 12h 01m 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.

An easier way to manage your Trenton, New Jersey trip

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