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Cheap flights from Trenton, New Jersey to St. Louis from $104

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
8:26 pm - 12:41 amTTN  Trenton-Mercer-STL Lambert-St Louis
29h 15m1 stop Orlando
Frontier Logo
5:58 pm - 11:01 amSTL  Lambert-St Louis-TTN Trenton-Mercer
16h 03m1 stop Orlando
$239Frontier
Sat, Dec 19 - Wed, Dec 23
Frontier Logo
11:19 am - 11:59 pmTTN  Trenton-Mercer-STL Lambert-St Louis
13h 40m1 stop Orlando
Frontier Logo
6:05 pm - 10:34 amSTL  Lambert-St Louis-TTN Trenton-Mercer
15h 29m1 stop Orlando
$259Frontier
Sat, Nov 21 - Mon, Nov 23
Frontier Logo
11:19 am - 12:25 pmTTN  Trenton-Mercer-STL Lambert-St Louis
26h 06m1 stop Orlando
Frontier Logo
6:05 pm - 10:34 amSTL  Lambert-St Louis-TTN Trenton-Mercer
15h 29m1 stop Orlando
$280Frontier
Fri, Nov 20 - Sun, Nov 22
Frontier Logo
11:19 am - 11:59 pmTTN  Trenton-Mercer-STL Lambert-St Louis
13h 40m1 stop Orlando
Frontier Logo
6:05 pm - 10:13 amSTL  Lambert-St Louis-TTN Trenton-Mercer
15h 08m1 stop Orlando
$296Frontier
Thu, Nov 26 - Mon, Nov 30
Frontier Logo
11:19 am - 11:59 pmTTN  Trenton-Mercer-STL Lambert-St Louis
13h 40m1 stop Orlando
Frontier Logo
6:09 pm - 10:34 amSTL  Lambert-St Louis-TTN Trenton-Mercer
15h 25m1 stop Orlando
$299Frontier
Tue, Nov 24 - Thu, Nov 26
Frontier Logo
11:19 am - 11:59 pmTTN  Trenton-Mercer-STL Lambert-St Louis
13h 40m1 stop Orlando
Frontier Logo
6:05 pm - 10:13 amSTL  Lambert-St Louis-TTN Trenton-Mercer
15h 08m1 stop Orlando
$314Frontier
Fri, Nov 27 - Mon, Nov 30
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
$320Frontier
Fri, Nov 13 - Sun, Nov 15
Frontier Logo
11:03 am - 12:12 amTTN  Trenton-Mercer-STL Lambert-St Louis
14h 09m1 stop Orlando
Frontier Logo
6:20 pm - 10:18 amSTL  Lambert-St Louis-TTN Trenton-Mercer
14h 58m1 stop Orlando
$334Frontier
Thu, Dec 3 - Mon, Dec 7
Frontier Logo
8:01 pm - 11:16 pmTTN  Trenton-Mercer-STL Lambert-St Louis
28h 15m1 stop Orlando
Frontier Logo
4:26 pm - 10:34 amSTL  Lambert-St Louis-TTN Trenton-Mercer
17h 08m1 stop Orlando
$340Frontier
Sun, Nov 15 - Thu, Nov 19
Frontier Logo
11:46 am - 12:41 amTTN  Trenton-Mercer-STL Lambert-St Louis
13h 55m1 stop Orlando
Frontier Logo
5:58 pm - 7:41 pmSTL  Lambert-St Louis-TTN Trenton-Mercer
24h 43m1 stop Orlando
$360Frontier
Tue, Dec 22 - Fri, Dec 25

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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
Dec 19
TTN8:26 pmTrenton-Mercer
29h 15m
1 stop
STL12:41 amLambert-St Louis
Dec 23
STL5:58 pmLambert-St Louis
16h 03m
1 stop
TTN11:01 amTrenton-Mercer
$239
Frontier
Nov 21
TTN11:19 amTrenton-Mercer
13h 40m
1 stop
STL11:59 pmLambert-St Louis
Nov 23
STL6:05 pmLambert-St Louis
15h 29m
1 stop
TTN10:34 amTrenton-Mercer
$259
Frontier
Nov 20
TTN11:19 amTrenton-Mercer
26h 06m
1 stop
STL12:25 pmLambert-St Louis
Nov 22
STL6:05 pmLambert-St Louis
15h 29m
1 stop
TTN10:34 amTrenton-Mercer
$280

momondo Fare Finder

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

Fly from

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Route

Depart

Return

Price

Cheapest round-trip

TrentonSt. Louis

TTN Trenton-Mercer - STL Lambert-St Louis

TTNSTL

Trenton-Mercer

Sat 12/19

8:26 pm-12:41 am

1 stop29h 15m

Lambert-St Louis

Wed 12/23

5:58 pm-11:01 am

1 stop16h 03m

$239

TrentonSt. Louis

TTN Trenton-Mercer - STL Lambert-St Louis

TTNSTL

Trenton-Mercer

Sat 11/21

11:19 am-11:59 pm

1 stop13h 40m

Lambert-St Louis

Mon 11/23

6:05 pm-10:34 am

1 stop15h 29m

$259

TrentonSt. Louis

TTN Trenton-Mercer - STL Lambert-St Louis

TTNSTL

Trenton-Mercer

Fri 11/20

11:19 am-12:25 pm

1 stop26h 06m

Lambert-St Louis

Sun 11/22

6:05 pm-10:34 am

1 stop15h 29m

$280
Quickest round-trip

TrentonSt. Louis

TTN Trenton-Mercer - STL Lambert-St Louis

TTNSTL

Trenton-Mercer

Thu 11/26

11:19 am-11:59 pm

1 stop13h 40m

Lambert-St Louis

Mon 11/30

6:05 pm-10:13 am

1 stop15h 08m

$296

TrentonSt. Louis

TTN Trenton-Mercer - STL Lambert-St Louis

TTNSTL

Trenton-Mercer

Tue 11/24

11:19 am-11:59 pm

1 stop13h 40m

Lambert-St Louis

Thu 11/26

6:09 pm-10:34 am

1 stop15h 25m

$299

TrentonSt. Louis

TTN Trenton-Mercer - STL Lambert-St Louis

TTNSTL

Trenton-Mercer

Fri 11/27

11:19 am-11:59 pm

1 stop13h 40m

Lambert-St Louis

Mon 11/30

6:05 pm-10:13 am

1 stop15h 08m

$314

TrentonSt. Louis

TTN Trenton-Mercer - STL Lambert-St Louis

TTNSTL

Trenton-Mercer

Fri 11/13

8:01 pm-11:16 pm

1 stop28h 15m

Lambert-St Louis

Sun 11/15

4:26 pm-7:15 pm

1 stop25h 49m

$320

TrentonSt. Louis

TTN Trenton-Mercer - STL Lambert-St Louis

TTNSTL

Trenton-Mercer

Thu 12/3

11:03 am-12:12 am

1 stop14h 09m

Lambert-St Louis

Mon 12/7

6:20 pm-10:18 am

1 stop14h 58m

$334

TrentonSt. Louis

TTN Trenton-Mercer - STL Lambert-St Louis

TTNSTL

Trenton-Mercer

Sun 11/15

8:01 pm-11:16 pm

1 stop28h 15m

Lambert-St Louis

Thu 11/19

4:26 pm-10:34 am

1 stop17h 08m

$340

TrentonSt. Louis

TTN Trenton-Mercer - STL Lambert-St Louis

TTNSTL

Trenton-Mercer

Tue 12/22

11:46 am-12:41 am

1 stop13h 55m

Lambert-St Louis

Fri 12/25

5:58 pm-7:41 pm

1 stop24h 43m

$360

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 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 Thursday when prices can be found for as low as $396. 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 $510. 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 morning is the least expensive time of day to depart. momondo users have found prices as low as $418 when looking at flights departing in the morning. At noon is when there is more demand to fly to St. Louis, so prices are often more expensive at around $456 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

$104

Fastest flight time

13h 40m

Direct flights

None
The best one-way flight to St. Louis from Trenton, New Jersey in the past 72 hours is $104. The best round-trip flight deal from Trenton, New Jersey to St. Louis found on momondo in the last 72 hours is $239.
The fastest flight from Trenton, New Jersey to St. Louis takes 13h 40m
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. 13h 40m 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
Alton
Collinsville
Farmington
Florissant
Festus
Hermann
Clayton
Fenton
Edwardsville
O'Fallon
Eureka
Wentzville
Litchfield
Grafton
Waterloo

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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