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Cheap flights from Trenton to St. Louis (TTN - STL) from $81

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 6/17. 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.
TTN — STL
May 21 — May 281
From?
To?
Tue 5/21
Tue 5/28
1 adult, Economy
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Cheap flight deals from Trenton to St. Louis

Discover tips and strategies to find the most affordable flight options for your journey from Trenton (TTN) to St. Louis (STL). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated May 16, 2024.

Round-trip from

$320

One-way from

$81
From Trenton-Mercer to Lambert-St Louis
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One-way flight from Trenton-Mercer to Lambert-St Louis
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How far in advance should I book a flight from Trenton, New Jersey to St. Louis?

Users have found that booking a flight from Trenton, New Jersey to St. Louis at least 47 days early can save you up to 117% on average compared to booking a flight this week. If booking 47 days before your flight isn’t an option for you, users have found flights from Trenton, New Jersey to St. Louis for as little as $445 when booking for a departure date within the next two weeks. You can also check prices now. Some users have found airline tickets as low as $562 for flights departing within the next 3 days.

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

September is one of the best times of the year to fly to St. Louis from Trenton, New Jersey. Prices for September average $333 per person but you can even find prices for as low as $119. The most expensive prices can be found in the month of December. Opting for a September flight can save you 18% on your journey compared to booking in December

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

When flying from Trenton, New Jersey to St. Louis, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

Cheap Frontier flights from Trenton to St. Louis

Explore cheap flight options specifically provided by Frontier for the route between Trenton and St. Louis. 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 2,637,452 searches. Data last updated May 16, 2024.
Wed 5/296:43 pmTTN - STL
1 stop13h 25mFrontier
Wed 6/58:13 amSTL - TTN
1 stop22h 29mFrontier
Deal found 5/15$149
Mon 6/109:36 pmTTN - STL
1 stop10h 31mFrontier
Tue 6/117:44 pmSTL - TTN
1 stop11h 47mFrontier
Deal found 5/16$150
Wed 6/56:37 pmTTN - STL
1 stop13h 30mFrontier
Thu 6/67:44 pmSTL - TTN
1 stop11h 42mFrontier
Deal found 5/15$167
Wed 6/126:37 pmTTN - STL
1 stop13h 30mFrontier
Mon 6/176:16 pmSTL - TTN
1 stop24h 46mFrontier
Deal found 5/15$196
Sat 6/158:34 pmTTN - STL
1 stop11h 33mFrontier
Sun 6/237:44 pmSTL - TTN
1 stop11h 42mFrontier
Deal found 5/15$198
Sun 6/167:40 pmTTN - STL
1 stop22h 36mFrontier
Sun 6/237:44 pmSTL - TTN
1 stop11h 42mFrontier
Deal found 5/15$222
Tue 6/118:53 pmTTN - STL
1 stop11h 32mFrontier
Thu 6/137:44 pmSTL - TTN
1 stop11h 42mFrontier
Deal found 5/16$234
Fri 7/268:40 pmTTN - STL
1 stop12h 56mFrontier
Mon 7/297:33 pmSTL - TTN
1 stop23h 50mFrontier
Deal found 5/15$266
Sun 6/237:40 pmTTN - STL
1 stop22h 34mFrontier
Tue 6/257:44 pmSTL - TTN
1 stop11h 47mFrontier
Deal found 5/15$270

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

Find cheap flight options from Trenton to St. Louis specifically for the months of May and June 2024. Explore affordable fares based on user searches. Over the last 7 days, Cheapflights users made 2,637,452 searches. Prices were last updated on May 16, 2024.
Wed 5/296:43 pmTTN - STL
1 stop13h 25mFrontier
Wed 6/58:13 amSTL - TTN
1 stop22h 29mFrontier
Deal found 5/15$149
Mon 6/109:36 pmTTN - STL
1 stop10h 31mFrontier
Tue 6/117:44 pmSTL - TTN
1 stop11h 47mFrontier
Deal found 5/16$150
Wed 6/56:37 pmTTN - STL
1 stop13h 30mFrontier
Thu 6/67:44 pmSTL - TTN
1 stop11h 42mFrontier
Deal found 5/15$167
Wed 6/126:37 pmTTN - STL
1 stop13h 30mFrontier
Mon 6/176:16 pmSTL - TTN
1 stop24h 46mFrontier
Deal found 5/15$196
Sat 6/158:34 pmTTN - STL
1 stop11h 33mFrontier
Sun 6/237:44 pmSTL - TTN
1 stop11h 42mFrontier
Deal found 5/15$198
Sun 6/167:40 pmTTN - STL
1 stop22h 36mFrontier
Sun 6/237:44 pmSTL - TTN
1 stop11h 42mFrontier
Deal found 5/15$222
Tue 6/118:53 pmTTN - STL
1 stop11h 32mFrontier
Thu 6/137:44 pmSTL - TTN
1 stop11h 42mFrontier
Deal found 5/16$234
Wed 5/2211:50 amTTN - STL
1 stop9h 20mFrontier
Wed 5/299:10 pmSTL - TTN
1 stop17h 03mFrontier
Deal found 5/15$270
Sun 5/263:58 pmTTN - STL
1 stop29h 22mFrontier
Wed 5/299:10 pmSTL - TTN
1 stop17h 03mFrontier
Deal found 5/14$271

Trenton to St. Louis 2024 flight deals

Discover exclusive flight deals for travel between Trenton and St. Louis in 2024. Find excellent offers based on user searches. Over the last 7 days, Cheapflights users made 2,637,452 searches. Data last updated May 16, 2024.
Wed 5/296:43 pmTTN - STL
1 stop13h 25mFrontier
Wed 6/58:13 amSTL - TTN
1 stop22h 29mFrontier
Deal found 5/15$149
Mon 6/109:36 pmTTN - STL
1 stop10h 31mFrontier
Tue 6/117:44 pmSTL - TTN
1 stop11h 47mFrontier
Deal found 5/16$150
Wed 6/56:37 pmTTN - STL
1 stop13h 30mFrontier
Thu 6/67:44 pmSTL - TTN
1 stop11h 42mFrontier
Deal found 5/15$167
Wed 6/126:37 pmTTN - STL
1 stop13h 30mFrontier
Mon 6/176:16 pmSTL - TTN
1 stop24h 46mFrontier
Deal found 5/15$196
Sat 6/158:34 pmTTN - STL
1 stop11h 33mFrontier
Sun 6/237:44 pmSTL - TTN
1 stop11h 42mFrontier
Deal found 5/15$198
Sun 6/167:40 pmTTN - STL
1 stop22h 36mFrontier
Sun 6/237:44 pmSTL - TTN
1 stop11h 42mFrontier
Deal found 5/15$222
Tue 6/118:53 pmTTN - STL
1 stop11h 32mFrontier
Thu 6/137:44 pmSTL - TTN
1 stop11h 42mFrontier
Deal found 5/16$234
Fri 7/268:40 pmTTN - STL
1 stop12h 56mFrontier
Mon 7/297:33 pmSTL - TTN
1 stop23h 50mFrontier
Deal found 5/15$266
Wed 5/2211:50 amTTN - STL
1 stop9h 20mFrontier
Wed 5/299:10 pmSTL - TTN
1 stop17h 03mFrontier
Deal found 5/15$270

Trenton to St. Louis flights leaving soon

Find last-minute flight options from Trenton to St. Louis 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 2,637,452 searches. Data last updated May 16, 2024.
Wed 5/2211:50 amTTN - STL
1 stop9h 20mFrontier
Wed 5/299:10 pmSTL - TTN
1 stop17h 03mFrontier
Deal found 5/15$270
Sun 5/263:58 pmTTN - STL
1 stop29h 22mFrontier
Wed 5/299:10 pmSTL - TTN
1 stop17h 03mFrontier
Deal found 5/14$271

One-way flights to St. Louis from Trenton

Search for one-way flight options from Trenton to St. Louis. 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 2,637,452 searches. Data last updated May 16, 2024.
Mon 6/179:36 pmTTN - STL
1 stop10h 31mFrontier
Deal found 5/15$81
Mon 6/179:36 pmTTN - STL
1 stop10h 31mFrontier
Deal found 5/16$85
Sun 6/23:58 pmTTN - STL
1 stop29h 22mFrontier
Deal found 5/15$89
Wed 7/106:37 pmTTN - STL
1 stop15h 06mFrontier
Deal found 5/16$120
Sun 7/77:40 pmTTN - STL
1 stop14h 03mFrontier
Deal found 5/16$131
Sat 7/276:55 pmTTN - STL
1 stop13h 07mFrontier
Deal found 5/15$132
Fri 8/28:40 pmTTN - STL
1 stop12h 56mFrontier
Deal found 5/15$133
Mon 7/229:36 pmTTN - STL
1 stop12h 00mFrontier
Deal found 5/16$134
Wed 7/3111:26 amTTN - STL
1 stop22h 17mFrontier
Deal found 5/16$138

Find flights from Trenton to St. Louis within your budget

Customize your flight search to find flights from Trenton to St. Louis 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 2,637,452 searches. Data last updated May 16, 2024.

Fly from

Any airport

Fly to

Any airport

Budget

$149 - $270

Route

Depart

Return

Price

Trenton-MercerLambert-St Louis

TTN - STL

TTNSTL

Trenton-Mercer

Wed 5/29

1 stop13h 25m

Lambert-St Louis

Wed 6/5

1 stop22h 29m

$149

Trenton-MercerLambert-St Louis

TTN - STL

TTNSTL

Trenton-Mercer

Mon 6/10

1 stop10h 31m

Lambert-St Louis

Tue 6/11

1 stop11h 47m

$150

Trenton-MercerLambert-St Louis

TTN - STL

TTNSTL

Trenton-Mercer

Wed 6/5

1 stop13h 30m

Lambert-St Louis

Thu 6/6

1 stop11h 42m

$167

Trenton-MercerLambert-St Louis

TTN - STL

TTNSTL

Trenton-Mercer

Wed 6/12

1 stop13h 30m

Lambert-St Louis

Mon 6/17

1 stop24h 46m

$196

Trenton-MercerLambert-St Louis

TTN - STL

TTNSTL

Trenton-Mercer

Sat 6/15

1 stop11h 33m

Lambert-St Louis

Sun 6/23

1 stop11h 42m

$198

Trenton-MercerLambert-St Louis

TTN - STL

TTNSTL

Trenton-Mercer

Sun 6/16

1 stop22h 36m

Lambert-St Louis

Sun 6/23

1 stop11h 42m

$222

Trenton-MercerLambert-St Louis

TTN - STL

TTNSTL

Trenton-Mercer

Tue 6/11

1 stop11h 32m

Lambert-St Louis

Thu 6/13

1 stop11h 42m

$234

Trenton-MercerLambert-St Louis

TTN - STL

TTNSTL

Trenton-Mercer

Fri 7/26

1 stop12h 56m

Lambert-St Louis

Mon 7/29

1 stop23h 50m

$266

Trenton-MercerLambert-St Louis

TTN - STL

TTNSTL

Trenton-Mercer

Sun 6/23

1 stop22h 34m

Lambert-St Louis

Tue 6/25

1 stop11h 47m

$270

Flights are sorted by cheapest first

Deals found on 5/15

No data available for this route at this time. Please check back soon.

Average price of flights to St. Louis by month

Plan your trip from Trenton to St. Louis by taking into account the cheapest months to travel. The average price of a one-way flight from Trenton to St. Louis is currently $116 while a round-trip flight costs $206. Price data was last updated on May 12, 2024.

Currently, September is the cheapest month in which you can book a flight from Trenton, New Jersey to St. Louis (average of $320). Flying from Trenton, New Jersey to St. Louis in July is currently the most expensive (average of $369). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

January

$326

February

$331

March

$357

April

$337

May

$342

June

$366

July

$369

August

$336

September

$320

October

$324

November

$336

December

$326

Temperature and rainfall in St. Louis by month

Plan your trip to St. Louis by taking into account the average temperature and rainfall totals by month.

STL

Temperature

32 - 80.6 °F

Reviews of airlines servicing St. Louis

Get insights into the airlines that provide service to St. Louis. 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 St. Louis. Reviews last updated May 16, 2024.
Frontier
6.3
Okay
4,060 reviews
Check prices

Boarding

6.6

Food

5.2

Crew

7.1

Comfort

5.8

Entertainment

4.9

Overall

6.3

Reviews

1 / 10

Inexpensive flight, and everything is an extra charge, so okay, fair deal!

Frontier
6.3
Okay
4,060 reviews
Frontier
6.3
Okay
4,060 reviews
Check prices

Boarding

6.6

Food

5.2

Crew

7.1

Comfort

5.8

Entertainment

4.9

Overall

6.3

Reviews

1 / 10

Inexpensive flight, and everything is an extra charge, so okay, fair deal!

Related info for your journey

Find useful and relevant information for your journey from Trenton to St. Louis. 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 Trenton, New Jersey to St. Louis for under $200 on Cheapflights?

    Yes, there are multiple flights from Trenton, New Jersey to St. Louis for under $200. The cheapest flight booked recently is on Frontier for just $149, but on average you can expect to pay $264.

  • Are there last-minute flights available from Trenton, New Jersey to St. Louis for under $300?

    There are currently 2+ open flights from Trenton, New Jersey to St. Louis within the next 7 days for less than $300.

  • What is the cheapest airline to fly from Trenton, New Jersey to St. Louis round-trip?

    Currently priced at $149, Frontier will fly you from Trenton, New Jersey to St. Louis and back. In addition to Frontier, many other airlines offer competitively priced options for your trip.

  • What does TTN to STL mean?

    TTN stands for Trenton-Mercer Airport, while STL stands for Lambert-St Louis Airport. These codes are often called IATA codes, a set of identifiers established by IATA (International Air Transport Association) that is widely used by airlines and the aviation industry.

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

    The amount of baggage you can bring on your Trenton to St. Louis 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 Trenton to St. Louis with specific airlines?

    Yes, Cheapflights allows you to browse and filter Trenton to St. Louis 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 Trenton to St. Louis that include hotel bookings?

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

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

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

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

    Yes. Cheapflights offers flight deals from Trenton to St. Louis 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 Trenton to St. Louis that allow pets onboard?

    Many airlines flying from Trenton to St. Louis 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 Trenton to St. Louis?

    Yes, you can often find last-minute deals on Trenton to St. Louis 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 Trenton, New Jersey to St. Louis flight deals updated?

    The Trenton, New Jersey to St. Louis flight deals you see on this page were last updated on 5/16.

See more FAQs

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

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Search flights from Trenton to St. Louis by cabin class

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

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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 Trenton to St. Louis?

Cheapflights helps you search for flights from Trenton to St. Louis via 900+ travel sites so you don’t have to. After performing a flight search, users can also filter their flight selection by filtering for price, number of stops, airlines, and so on.

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

It’s simple! Cheapflights, which is free to use for everyone, saves millions of users time and money every year by helping them find the cheapest and most suitable flights from Trenton to St. Louis.

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

Users can book flights with no change fees policies with our dedicated filters. Book flights from Trenton to St. Louis flexibly with Cheapflights today.

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

Yes, Cheapflights offers price alerts on Trenton to St. Louis flights so you can book your travel at the perfect time. Price Alerts can be enabled by clicking the bell icon next to the flight deals above and providing your email address where you want to receive the alerts.

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