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Cheap flights from Trenton, New Jersey to St. Louis from $115

1 adult
1 adult, Economy, 0 bags

Find the cheapest flights from Trenton, New Jersey to St. Louis

Cheap round-trip flights

Enter your travel dates to find the best prices.
Frontier Logo
8:01 pm - 2:46 pmTTN  Trenton-Mercer-STL Lambert-St Louis
19h 45m1 stop Orlando
Frontier Logo
7:31 pm - 9:33 amSTL  Lambert-St Louis-TTN Trenton-Mercer
13h 02m1 stop Orlando
$238Frontier
Thu, Nov 19 - Sat, Nov 21
Frontier Logo
7:39 pm - 4:34 pmTTN  Trenton-Mercer-STL Lambert-St Louis
21h 55m1 stop Orlando
Frontier Logo
5:19 pm - 6:42 pmSTL  Lambert-St Louis-TTN Trenton-Mercer
24h 23m1 stop Orlando
$241Frontier
Sun, Sep 13 - Fri, Sep 18
Frontier Logo
7:39 pm - 4:34 pmTTN  Trenton-Mercer-STL Lambert-St Louis
21h 55m1 stop Orlando
Frontier Logo
6:39 pm - 6:42 pmSTL  Lambert-St Louis-TTN Trenton-Mercer
23h 03m1 stop Orlando
$242Frontier
Sun, Sep 27 - Thu, Oct 1
Frontier Logo
7:39 pm - 11:13 pmTTN  Trenton-Mercer-STL Lambert-St Louis
28h 34m1 stop Orlando
Frontier Logo
4:30 pm - 6:54 pmSTL  Lambert-St Louis-TTN Trenton-Mercer
25h 24m1 stop Orlando
$250Frontier
Wed, Oct 7 - Fri, Oct 9
Frontier Logo
7:39 pm - 11:13 pmTTN  Trenton-Mercer-STL Lambert-St Louis
28h 34m1 stop Orlando
Frontier Logo
4:26 pm - 8:15 pmSTL  Lambert-St Louis-TTN Trenton-Mercer
26h 49m1 stop Orlando
$258Frontier
Sat, Oct 24 - Sat, Oct 31
Frontier Logo
10:28 am - 2:46 pmTTN  Trenton-Mercer-STL Lambert-St Louis
29h 18m1 stop Orlando
Frontier Logo
7:31 pm - 9:33 amSTL  Lambert-St Louis-TTN Trenton-Mercer
13h 02m1 stop Orlando
$262Frontier
Fri, Nov 20 - Sun, Nov 22
Frontier Logo
7:39 pm - 11:13 pmTTN  Trenton-Mercer-STL Lambert-St Louis
28h 34m1 stop Orlando
Frontier Logo
4:30 pm - 6:54 pmSTL  Lambert-St Louis-TTN Trenton-Mercer
25h 24m1 stop Orlando
$272Frontier
Fri, Oct 16 - Sun, Oct 18
Frontier Logo
7:39 pm - 11:13 pmTTN  Trenton-Mercer-STL Lambert-St Louis
28h 34m1 stop Orlando
Frontier Logo
4:30 pm - 6:54 pmSTL  Lambert-St Louis-TTN Trenton-Mercer
25h 24m1 stop Orlando
$277Frontier
Wed, Oct 7 - Thu, Oct 22
Frontier Logo
8:01 pm - 11:16 pmTTN  Trenton-Mercer-STL Lambert-St Louis
28h 15m1 stop Orlando
Frontier Logo
4:26 pm - 7:15 pmSTL  Lambert-St Louis-TTN Trenton-Mercer
25h 49m1 stop Orlando
$281Frontier
Thu, Oct 29 - Sun, Nov 1
Frontier Logo
11:23 am - 12:41 amTTN  Trenton-Mercer-STL Lambert-St Louis
14h 18m1 stop Orlando
Frontier Logo
6:05 pm - 10:28 amSTL  Lambert-St Louis-TTN Trenton-Mercer
15h 23m1 stop Orlando
$301Frontier
Fri, Dec 4 - Sun, Dec 6

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Frontier flights from Trenton, New Jersey to St. Louis

Our best Frontier deals on Trenton, New Jersey to St. Louis flight tickets
Frontier
Nov 19
TTN8:01 pmTrenton-Mercer
19h 45m
1 stop
STL2:46 pmLambert-St Louis
Nov 21
STL7:31 pmLambert-St Louis
13h 02m
1 stop
TTN9:33 amTrenton-Mercer
$238
Frontier
Sep 13
TTN7:39 pmTrenton-Mercer
21h 55m
1 stop
STL4:34 pmLambert-St Louis
Sep 18
STL5:19 pmLambert-St Louis
24h 23m
1 stop
TTN6:42 pmTrenton-Mercer
$241
Frontier
Sep 27
TTN7:39 pmTrenton-Mercer
21h 55m
1 stop
STL4:34 pmLambert-St Louis
Oct 1
STL6:39 pmLambert-St Louis
23h 03m
1 stop
TTN6:42 pmTrenton-Mercer
$242

momondo Fare Finder

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

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Route

Depart

Return

Price

Cheapest round-trip

TrentonSt. Louis

TTN Trenton-Mercer - STL Lambert-St Louis

TTNSTL

Trenton-Mercer

Thu 11/19

8:01 pm-2:46 pm

1 stop19h 45m

Lambert-St Louis

Sat 11/21

7:31 pm-9:33 am

1 stop13h 02m

$238

TrentonSt. Louis

TTN Trenton-Mercer - STL Lambert-St Louis

TTNSTL

Trenton-Mercer

Sun 9/13

7:39 pm-4:34 pm

1 stop21h 55m

Lambert-St Louis

Fri 9/18

5:19 pm-6:42 pm

1 stop24h 23m

$241

TrentonSt. Louis

TTN Trenton-Mercer - STL Lambert-St Louis

TTNSTL

Trenton-Mercer

Sun 9/27

7:39 pm-4:34 pm

1 stop21h 55m

Lambert-St Louis

Thu 10/1

6:39 pm-6:42 pm

1 stop23h 03m

$242

TrentonSt. Louis

TTN Trenton-Mercer - STL Lambert-St Louis

TTNSTL

Trenton-Mercer

Wed 10/7

7:39 pm-11:13 pm

1 stop28h 34m

Lambert-St Louis

Fri 10/9

4:30 pm-6:54 pm

1 stop25h 24m

$250

TrentonSt. Louis

TTN Trenton-Mercer - STL Lambert-St Louis

TTNSTL

Trenton-Mercer

Sat 10/24

7:39 pm-11:13 pm

1 stop28h 34m

Lambert-St Louis

Sat 10/31

4:26 pm-8:15 pm

1 stop26h 49m

$258

TrentonSt. Louis

TTN Trenton-Mercer - STL Lambert-St Louis

TTNSTL

Trenton-Mercer

Fri 11/20

10:28 am-2:46 pm

1 stop29h 18m

Lambert-St Louis

Sun 11/22

7:31 pm-9:33 am

1 stop13h 02m

$262

TrentonSt. Louis

TTN Trenton-Mercer - STL Lambert-St Louis

TTNSTL

Trenton-Mercer

Fri 10/16

7:39 pm-11:13 pm

1 stop28h 34m

Lambert-St Louis

Sun 10/18

4:30 pm-6:54 pm

1 stop25h 24m

$272

TrentonSt. Louis

TTN Trenton-Mercer - STL Lambert-St Louis

TTNSTL

Trenton-Mercer

Wed 10/7

7:39 pm-11:13 pm

1 stop28h 34m

Lambert-St Louis

Thu 10/22

4:30 pm-6:54 pm

1 stop25h 24m

$277

TrentonSt. Louis

TTN Trenton-Mercer - STL Lambert-St Louis

TTNSTL

Trenton-Mercer

Thu 10/29

8:01 pm-11:16 pm

1 stop28h 15m

Lambert-St Louis

Sun 11/1

4:26 pm-7:15 pm

1 stop25h 49m

$281
Quickest round-trip

TrentonSt. Louis

TTN Trenton-Mercer - STL Lambert-St Louis

TTNSTL

Trenton-Mercer

Fri 12/4

11:23 am-12:41 am

1 stop14h 18m

Lambert-St Louis

Sun 12/6

6:05 pm-10:28 am

1 stop15h 23m

$301

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 17 resultsSorted by cheapest first
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See travel insights to St. Louis from

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

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 day to depart on your flight to St. Louis?

The cheapest day to depart on your flight to St. Louis is on a Wednesday when prices can be found for as low as $384. This is often the case because there is less demand to fly during this day of the week. If your travel schedule is flexible, try to avoid departing on a Monday because tickets tend to average around $497. These prices are subject to change though, so be sure to set up a Price Alert for flights to St. Louis.

What is the cheapest time of day to depart on your flight to St. Louis?

Flying to St. Louis from Trenton, New Jersey in the evening is the least expensive time of day to depart. momondo users have found prices as low as $395 when looking at flights departing in the evening. At noon is when there is more demand to fly to St. Louis, so prices are often more expensive at around $428 per ticket.

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

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

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

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

Best Price Found

$115

Fastest flight time

9h 58m

Direct flights

None
The best one-way flight to St. Louis from Trenton, New Jersey in the past 72 hours is $115. The best round-trip flight deal from Trenton, New Jersey to St. Louis found on momondo in the last 72 hours is $238.
The fastest flight from Trenton, New Jersey to St. Louis takes 9h 58m
There are no direct flights from Trenton, New Jersey to St. Louis. There are no popular flight routes from Trenton, New Jersey to St. Louis.
Search flight deals

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

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

    There are 829.7 mi between Trenton-Mercer and Lambert-St Louis. 9h 58m is a normal flight duration for this route.

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

    Prices for flights from Trenton-Mercer Airport to Lambert-St Louis Airport are refreshed on a daily basis.

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

    The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Trenton-Mercer Airport to Lambert-St Louis Airport.

  • What documentation or ID do you need to fly to Lambert-St Louis Airport?

    The necessary travel and health documents for your Lambert-St Louis Airport trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

Traveling to a place near St. Louis?

Book flights to St. Louis if you plan to visit one of these locations
St. Charles
Chesterfield
Fairview Heights
Maryland Heights
St. Peters
Hermann
Alton
Florissant
Collinsville
O'Fallon
Farmington
Clayton
Fenton
Festus
Wentzville
Eureka
Edwardsville
Litchfield
Grafton
Shrewsbury

Why use momondo?

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

momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights from Trenton to St. Louis. Millions of users trust and use momondo every year so you are in good hands.

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

All flight searches from Trenton to St. Louis on momondo can be filtered to show those which offer flexible booking policies.

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

momondo helps you find the best flight between Trenton and St. Louis by providing filters to narrow your choice of flights to those matching your criteria. You can select flights based on numerous factors such as price, departure and landing times, airport and airline.

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

If you are simply researching potential flights to St. Louis, momondo offers a useful price alert feature which will track prices for flights to St. Louis from Trenton and alert you when they change.

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