HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news

Cheap flights from St. Louis to Trenton (STL - TTN) from $85

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 5/15. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
STL — TTN
May 9 — May 161
From?
To?
Thu 5/9
Thu 5/16
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

How far in advance should I book a flight from St. Louis to Trenton, New Jersey?

When searching for a good deal, it’s best to be prepared for potential fluctuations in price. We recommend booking at least 58 days in advance, which can save you up to 185% on flights from St. Louis to Trenton, New Jersey compared to booking the week you need them. Waiting 58 days out may not be for everyone, so we have options available for flights within the next two weeks, with the lowest price starting at $290. For sooner than that we have options available in the next 3 days from $562.

What is the cheapest month to fly from St. Louis to Trenton, New Jersey?

Flights from St. Louis to Trenton, New Jersey lean towards being more expensive in June. Prices are generally better when you fly from St. Louis to Trenton, New Jersey in September, with the cheapest ticket starting at $129.

When is the cheapest time to fly from St. Louis to Trenton, New Jersey (STL - TTN)?

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from St. Louis to Trenton, New Jersey as you normally would.

Cheap Frontier flights from St. Louis to Trenton

Explore cheap flight options specifically provided by Frontier for the route between St. Louis and Trenton. Find affordable fares and compare prices with other airlines to secure the best deal for your journey. Over the last 7 days, Cheapflights users made 2,795,183 searches. Data last updated May 4, 2024.
Mon 5/139:11 pmSTL - TTN
1 stop9h 41mFrontier
Wed 5/159:59 pmTTN - STL
1 stop10h 09mFrontier
Deal found 5/3$164
Fri 5/107:16 pmSTL - TTN
1 stop12h 20mFrontier
Mon 5/139:59 pmTTN - STL
1 stop10h 14mFrontier
Deal found 5/3$168
Thu 6/67:44 pmSTL - TTN
1 stop11h 42mFrontier
Tue 6/118:53 pmTTN - STL
1 stop11h 32mFrontier
Deal found 5/4$192
Sun 6/27:44 pmSTL - TTN
1 stop15h 39mFrontier
Sun 6/97:40 pmTTN - STL
1 stop22h 34mFrontier
Deal found 5/3$212
Wed 7/179:20 pmSTL - TTN
1 stop9h 16mFrontier
Sat 7/206:55 pmTTN - STL
1 stop13h 07mFrontier
Deal found 5/4$219
Wed 7/249:20 pmSTL - TTN
1 stop9h 16mFrontier
Mon 7/299:00 pmTTN - STL
1 stop11h 02mFrontier
Deal found 5/3$237
Sun 7/216:42 pmSTL - TTN
1 stop15h 55mFrontier
Wed 7/249:00 pmTTN - STL
1 stop11h 02mFrontier
Deal found 5/3$241
Thu 6/137:44 pmSTL - TTN
1 stop11h 42mFrontier
Sun 6/167:40 pmTTN - STL
1 stop22h 36mFrontier
Deal found 5/2$261
Fri 6/77:44 pmSTL - TTN
1 stop10h 58mFrontier
Wed 6/196:37 pmTTN - STL
1 stop13h 30mFrontier
Deal found 5/2$262

Cheap St. Louis to Trenton flights in May & June 2024

Find cheap flight options from St. Louis to Trenton specifically for the months of May and June 2024. Explore affordable fares based on user searches. Over the last 7 days, Cheapflights users made 2,795,183 searches. Prices were last updated on May 4, 2024.
Mon 5/139:11 pmSTL - TTN
1 stop9h 41mFrontier
Wed 5/159:59 pmTTN - STL
1 stop10h 09mFrontier
Deal found 5/3$164
Fri 5/107:16 pmSTL - TTN
1 stop12h 20mFrontier
Mon 5/139:59 pmTTN - STL
1 stop10h 14mFrontier
Deal found 5/3$168
Thu 6/67:44 pmSTL - TTN
1 stop11h 42mFrontier
Tue 6/118:53 pmTTN - STL
1 stop11h 32mFrontier
Deal found 5/4$192
Sun 6/27:44 pmSTL - TTN
1 stop15h 39mFrontier
Sun 6/97:40 pmTTN - STL
1 stop22h 34mFrontier
Deal found 5/3$212
Wed 5/89:53 pmSTL - TTN
1 stop17h 28mFrontier
Tue 5/145:07 pmTTN - STL
1 stop24h 48mFrontier
Deal found 5/3$234
Thu 6/137:44 pmSTL - TTN
1 stop11h 42mFrontier
Sun 6/167:40 pmTTN - STL
1 stop22h 36mFrontier
Deal found 5/2$261
Fri 6/77:44 pmSTL - TTN
1 stop10h 58mFrontier
Wed 6/196:37 pmTTN - STL
1 stop13h 30mFrontier
Deal found 5/2$262
Fri 5/247:44 pmSTL - TTN
1 stop10h 54mFrontier
Mon 5/2711:01 amTTN - STL
1 stop10h 19mFrontier
Deal found 5/3$271
Sun 6/167:44 pmSTL - TTN
1 stop11h 42mFrontier
Tue 6/188:53 pmTTN - STL
1 stop11h 32mFrontier
Deal found 5/3$278

St. Louis to Trenton 2024 flight deals

Discover exclusive flight deals for travel between St. Louis and Trenton in 2024. Find excellent offers based on user searches. Over the last 7 days, Cheapflights users made 2,795,183 searches. Data last updated May 4, 2024.
Mon 5/139:11 pmSTL - TTN
1 stop9h 41mFrontier
Wed 5/159:59 pmTTN - STL
1 stop10h 09mFrontier
Deal found 5/3$164
Fri 5/107:16 pmSTL - TTN
1 stop12h 20mFrontier
Mon 5/139:59 pmTTN - STL
1 stop10h 14mFrontier
Deal found 5/3$168
Thu 6/67:44 pmSTL - TTN
1 stop11h 42mFrontier
Tue 6/118:53 pmTTN - STL
1 stop11h 32mFrontier
Deal found 5/4$192
Sun 6/27:44 pmSTL - TTN
1 stop15h 39mFrontier
Sun 6/97:40 pmTTN - STL
1 stop22h 34mFrontier
Deal found 5/3$212
Wed 7/179:20 pmSTL - TTN
1 stop9h 16mFrontier
Sat 7/206:55 pmTTN - STL
1 stop13h 07mFrontier
Deal found 5/4$219
Wed 5/89:53 pmSTL - TTN
1 stop17h 28mFrontier
Tue 5/145:07 pmTTN - STL
1 stop24h 48mFrontier
Deal found 5/3$234
Wed 7/249:20 pmSTL - TTN
1 stop9h 16mFrontier
Mon 7/299:00 pmTTN - STL
1 stop11h 02mFrontier
Deal found 5/3$237
Sun 7/216:42 pmSTL - TTN
1 stop15h 55mFrontier
Wed 7/249:00 pmTTN - STL
1 stop11h 02mFrontier
Deal found 5/3$241
Thu 6/137:44 pmSTL - TTN
1 stop11h 42mFrontier
Sun 6/167:40 pmTTN - STL
1 stop22h 36mFrontier
Deal found 5/2$261

St. Louis to Trenton flights leaving soon

Find last-minute flight options from St. Louis to Trenton for spontaneous travel. Discover available flights and compare prices based on user searches. Secure great deals and offers for spontaneous trips with quick booking options. Over the last 7 days, Cheapflights users made 2,795,183 searches. Data last updated May 4, 2024.
Mon 5/139:11 pmSTL - TTN
1 stop9h 41mFrontier
Wed 5/159:59 pmTTN - STL
1 stop10h 09mFrontier
Deal found 5/3$164
Fri 5/107:16 pmSTL - TTN
1 stop12h 20mFrontier
Mon 5/139:59 pmTTN - STL
1 stop10h 14mFrontier
Deal found 5/3$168

One-way flights to Trenton from St. Louis

Search for one-way flight options from St. Louis to Trenton. Find affordable one-way fares based on user searches. Compare prices and availability to plan your one-way journey according to your preferred dates and budget. Over the last 7 days, Cheapflights users made 2,795,183 searches. Data last updated May 4, 2024.
Wed 5/155:56 pmSTL - TTN
1 stop20h 17mFrontier
Deal found 5/3$85
Fri 5/177:44 pmSTL - TTN
1 stop10h 54mFrontier
Deal found 5/4$89
Mon 5/139:11 pmSTL - TTN
1 stop9h 41mFrontier
Deal found 5/4$95
Thu 5/167:44 pmSTL - TTN
1 stop15h 34mFrontier
Deal found 5/4$99
Thu 5/167:44 pmSTL - TTN
1 stop23h 54mFrontier
Deal found 5/4$100
Fri 5/247:44 pmSTL - TTN
1 stop10h 54mFrontier
Deal found 5/3$108
Wed 7/179:20 pmSTL - TTN
1 stop9h 16mFrontier
Deal found 5/2$110
Thu 6/137:44 pmSTL - TTN
1 stop11h 42mFrontier
Deal found 5/2$116
Sun 6/97:44 pmSTL - TTN
1 stop11h 42mFrontier
Deal found 5/3$117

Find flights from St. Louis to Trenton within your budget

Customize your flight search to find flights from St. Louis to Trenton 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, Cheapflights users made 2,795,183 searches. Data last updated May 4, 2024.

Fly from

Any airport

Fly to

Any airport

Budget

$192 - $278

Route

Depart

Return

Price

Lambert-St LouisTrenton-Mercer

STL - TTN

STLTTN

Lambert-St Louis

Thu 6/6

1 stop11h 42m

Trenton-Mercer

Tue 6/11

1 stop11h 32m

$192

Lambert-St LouisTrenton-Mercer

STL - TTN

STLTTN

Lambert-St Louis

Sun 6/2

1 stop15h 39m

Trenton-Mercer

Sun 6/9

1 stop22h 34m

$212

Lambert-St LouisTrenton-Mercer

STL - TTN

STLTTN

Lambert-St Louis

Wed 7/17

1 stop9h 16m

Trenton-Mercer

Sat 7/20

1 stop13h 07m

$219

Lambert-St LouisTrenton-Mercer

STL - TTN

STLTTN

Lambert-St Louis

Wed 7/24

1 stop9h 16m

Trenton-Mercer

Mon 7/29

1 stop11h 02m

$237

Lambert-St LouisTrenton-Mercer

STL - TTN

STLTTN

Lambert-St Louis

Sun 7/21

1 stop15h 55m

Trenton-Mercer

Wed 7/24

1 stop11h 02m

$241

Lambert-St LouisTrenton-Mercer

STL - TTN

STLTTN

Lambert-St Louis

Thu 6/13

1 stop11h 42m

Trenton-Mercer

Sun 6/16

1 stop22h 36m

$261

Lambert-St LouisTrenton-Mercer

STL - TTN

STLTTN

Lambert-St Louis

Fri 6/7

1 stop10h 58m

Trenton-Mercer

Wed 6/19

1 stop13h 30m

$262

Lambert-St LouisTrenton-Mercer

STL - TTN

STLTTN

Lambert-St Louis

Fri 5/24

1 stop10h 54m

Trenton-Mercer

Mon 5/27

1 stop10h 19m

$271

Lambert-St LouisTrenton-Mercer

STL - TTN

STLTTN

Lambert-St Louis

Sun 6/16

1 stop11h 42m

Trenton-Mercer

Tue 6/18

1 stop11h 32m

$278

Flights are sorted by cheapest first

Deals found on 5/4

When is the cheapest time to fly from St. Louis to Trenton, New Jersey?

Use this chart to determine the cheapest time to fly round-trip from St. Louis to Trenton. Price data was last updated on April 28, 2024.
Morning
Noon
Afternoon
Evening
All times are departure.
Travelers seeking maximum savings on their St. Louis to Trenton, New Jersey flight should consider departing on Tuesday afternoons when fares are most often at their lowest. Tuesday afternoons flights should be avoided if possible as fares are typically the most expensive at this time.
Search Deals

Reviews of airlines servicing Trenton

Get insights into the airlines that provide service to Trenton. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Trenton. Reviews last updated May 4, 2024.
Frontier
6.3
Okay
4,098 reviews
Check prices

Food

5.2

Boarding

6.6

Entertainment

4.9

Crew

7.1

Overall

6.3

Comfort

5.8

Reviews

1 / 10

Fine but we were stuck on the tarmac for 40 min upon landing at MDW. My husband was asked to put his bag in the measuring container and cut his finger in doing so.

Frontier
6.3
Okay
4,098 reviews
Frontier
6.3
Okay
4,098 reviews
Check prices

Food

5.2

Boarding

6.6

Entertainment

4.9

Crew

7.1

Overall

6.3

Comfort

5.8

Reviews

1 / 10

Fine but we were stuck on the tarmac for 40 min upon landing at MDW. My husband was asked to put his bag in the measuring container and cut his finger in doing so.

Related info for your journey

Find useful and relevant information for your journey from St. Louis to Trenton. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • Can I find flights from St. Louis to Trenton, New Jersey for under $200 on Cheapflights?

    Yes, there are multiple flights from St. Louis to Trenton, New Jersey for under $200. The cheapest flight booked recently is on Frontier for just $192, but on average you can expect to pay $275.

  • Are there last-minute flights available from St. Louis to Trenton, New Jersey for under $200?

    There are currently 2+ open flights from St. Louis to Trenton, New Jersey within the next 7 days for less than $200.

  • What does STL to TTN mean?

    These are just IATA (International Air Transport Association) codes. They are used in aviation to identify and differentiate airports. That’s why a Lambert-St Louis Airport to Trenton-Mercer Airport flight would often be abbreviated as a STL to TTN flight.

  • Can I find deals for flights from St. Louis to Trenton that include extra baggage allowance?

    The amount of baggage you can bring on your St. Louis to Trenton flight depends on the airline and the type of fare you've chosen. After entering your flight details, you'll be able to view the specific baggage policies for each deal in the search results. Keep in mind that certain deals may offer additional baggage allowance.

  • Can I find deals on flights from St. Louis to Trenton with specific airlines?

    Yes, Cheapflights allows you to browse and filter St. Louis to Trenton flight deals by airline. After entering your origin and destination, use the available filters to view flights offered by airlines.

  • Can I find deals for flights from St. Louis to Trenton that include hotel bookings?

    Yes. In addition to deals on St. Louis to Trenton flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from St. Louis to Trenton?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from St. Louis to Trenton.

  • Can I find deals for business class flights from St. Louis to Trenton?

    Yes. Cheapflights offers flight deals from St. Louis to Trenton by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • Can I find deals for flights from St. Louis to Trenton that allow pets onboard?

    Many airlines flying from St. Louis to Trenton offer the option to travel with pets. After selecting a flight deal, you can find more information about the airline's pet policy on their official website or by contacting the airline directly. Please note that additional fees and restrictions may apply.

  • Can I find deals on last-minute flights from St. Louis to Trenton?

    Yes, you can often find last-minute deals on St. Louis to Trenton flights on Cheapflights. However, these deals can vary and may not always be available. We recommend checking back frequently or signing up for price alerts for the most up-to-date deals.

  • How recently were the St. Louis to Trenton, New Jersey flight deals updated?

    The St. Louis to Trenton, New Jersey flight deals you see on this page were last updated on 5/4.

See more FAQs

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for St. Louis to Trenton
See prices for flight routes from nearby airports that may be better suited for you.

St. Louis to LaGuardia flights
Kansas City to LaGuardia flights
Kansas City to Newark flights
St. Louis to Newark flights
Kansas City to John F Kennedy Intl flights
St. Louis to John F Kennedy Intl flights
St. Louis to Philadelphia flights
Kansas City to Philadelphia flights
Springfield to LaGuardia flights
Springfield to John F Kennedy Intl flights
Springfield to Newark flights
Kansas City to Atlantic City flights
Springfield to Philadelphia flights
Columbia to John F Kennedy Intl flights
Columbia to Newark flights
Joplin to LaGuardia flights
Columbia to LaGuardia flights
Joplin to Newark flights
Joplin to Philadelphia flights
Kansas City to Trenton flights
Joplin to John F Kennedy Intl flights
Columbia to Philadelphia flights
Branson to Philadelphia flights
Philadelphia to Chicago flights
Atlanta to Los Angeles flights
Austin to Las Vegas flights
Los Angeles to Bangkok flights
Denver to Atlanta flights
Philadelphia to Denver flights
New York to London flights
Denver to Seattle flights
Chicago to Miami flights
USA to Philippines flights
Boston to Cancún flights
St. Louis to Tulum flights

Search flights from St. Louis to Trenton by cabin class

Find flights from St. Louis to Trenton, based on your preferred cabin class, be it economy, premium economy, business, or first class.
First Class
Business Class
Prem Econ Class
Economy Class

Book a flight to one of these trending destinations

User searches for flights to these destinations increased 20% or more in the past 90 days compared to other destinations
Flights to Saint Peter Jersey
Flights to Kirkwall Arpt
Flights to Skiathos
Flights to Naxos
Flights to Ningbo Lishe Intl
Flights to Edremit/Korfez
Flights to Bourgas
Flights to Bodø
Flights to Pellston Emmet County
Flights to Cornwall Newquay
Flights to Ordu/Giresun
Flights to Batumi
Flights to Mason City
Flights to Biarritz Parme
Flights to Zakynthos Dionsios Salomos
Flights to Cortez Montezuma County
Flights to Clermont-Ferrand Aulnat
Flights to Nevsehir
Flights to Hyannis Barnstable
Flights to Girona Costa Brava
Flights to Kagoshima
Flights to Perugia Sant Egidio
Flights to Oran Es Senia
Flights to Chios

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travelers can enjoy low prices and a wide availability of flights to their desired destinations.

How does Cheapflights help users find flights from St. Louis to Trenton?

Cheapflights makes it easy to find St. Louis to Trenton flights by helping our users search from 900+ travel sites for deals. We also provide you with filters for cabin, price, airline, airports, number of stops, and many more to narrow down that perfect flight.

Why should you use Cheapflights to find cheap flight tickets from St. Louis to Trenton?

Cheapflights taps into our reliable network of hundreds of airlines and travel agencies to find the best deals for flights from St. Louis to Trenton for you. Better yet — we are completely free to use.

Can Cheapflights find flights from St. Louis to Trenton with no change fees?

Cheapflights does show flights with no change fees to all users. To see these options for flights from St. Louis to Trenton, users can toggle the no change fees filter when performing a flight search.

Can Cheapflights notify me if prices for flights from St. Louis to Trenton become cheaper?

Yes, Cheapflights has a feature called Price Alert, which notifies users when flight prices change. Track prices for your flight to Trenton from St. Louis today and book when prices fit your budget.

100% Free
Cheapflights is completely free to use, so you can start saving the moment you arrive.
Book with Flexibility
Our users can plan ahead with confidence and find flights with no change fees
Travel Smart
Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.
View all available airlines