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

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How to find the cheapest flight from
St. Louis (STL) to Trenton (TTN)

All the information you need to plan the best STL to TTN flight in 2021: compare St. Louis to Trenton flight prices with the expected peak season, weather and rainfall in Trenton.
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 61 days in advance, which can save you up to 90% on flights from St. Louis to Trenton, New Jersey compared to booking the week you need them. Waiting 61 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 $367. For sooner than that we have options available in the next 3 days from $534.

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 March. Prices are generally better when you fly from St. Louis to Trenton, New Jersey in September, with the cheapest ticket starting at $147.

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 flights from St. Louis to Trenton in October, November 2021

The best prices found for STL to TTN flights for October, November
27 Oct - 31 Oct
$200pp
STL
Lambert-St Louis
Multiple Airlines
   
2 STOPS
TTN
Trenton Trenton-Mercer
TTN
Trenton Trenton-Mercer
Frontier
 
1 STOP
STL
Lambert-St Louis
27 Oct - 31 Oct
$205pp
STL
Lambert-St Louis
Multiple Airlines
 
1 STOP
TTN
Trenton Trenton-Mercer
TTN
Trenton Trenton-Mercer
Frontier
 
1 STOP
STL
Lambert-St Louis
2 Nov - 8 Nov
$238pp
STL
Lambert-St Louis
Frontier
 
1 STOP
TTN
Trenton Trenton-Mercer
TTN
Trenton Trenton-Mercer
Frontier
 
1 STOP
STL
Lambert-St Louis

Lambert-St Louis to Trenton 2021 flight deals

Cheap flights to Trenton from St. Louis found for this year
27 Oct - 31 Oct
$200pp
STL
Lambert-St Louis
Multiple Airlines
   
2 STOPS
TTN
Trenton Trenton-Mercer
TTN
Trenton Trenton-Mercer
Frontier
 
1 STOP
STL
Lambert-St Louis
27 Oct - 31 Oct
$205pp
STL
Lambert-St Louis
Multiple Airlines
 
1 STOP
TTN
Trenton Trenton-Mercer
TTN
Trenton Trenton-Mercer
Frontier
 
1 STOP
STL
Lambert-St Louis
2 Nov - 8 Nov
$238pp
STL
Lambert-St Louis
Frontier
 
1 STOP
TTN
Trenton Trenton-Mercer
TTN
Trenton Trenton-Mercer
Frontier
 
1 STOP
STL
Lambert-St Louis

Last minute flights from St. Louis to Trenton

Late deals on round-trip flights to Trenton from St. Louis, departing today and this week
2 Nov - 8 Nov
$238pp
STL
Lambert-St Louis
Frontier
 
1 STOP
TTN
Trenton Trenton-Mercer
TTN
Trenton Trenton-Mercer
Frontier
 
1 STOP
STL
Lambert-St Louis
29 Oct - 31 Oct
$414pp
STL
Lambert-St Louis
Frontier
 
1 STOP
TTN
Trenton Trenton-Mercer
TTN
Trenton Trenton-Mercer
Frontier
 
1 STOP
STL
Lambert-St Louis

One-way flights to Trenton-Mercer from St. Louis

The cheapest one-way flights from St. Louis to Trenton
7:18 am - 5:02 pm
Frontier
1 Stop
8h 44m
STL - TTN
Frontier
$104
Travelocity
2:30 am - 6:40 pm
Multiple Airlines
1 Stop
15h 10m
STL - TTN
Multiple Airlines
$154
JustFly
4:30 am - 5:09 pm
Frontier
1 Stop
11h 39m
STL - TTN
Frontier
$286
Expedia

Related info for your journey

Useful info, stats and facts about <span class="emphasized">St. Louis</span> to <span class="emphasized">Trenton</span> flights.

Flight FAQs

From St. Louis to Trenton

Which airlines flying from Lambert-St Louis to Trenton Trenton-Mercer have flexible changes due to COVID-19?

Due to the rapidly changing circumstances due to COVID-19, airlines like Frontier flying from Lambert-St Louis to Trenton Trenton-Mercer have implemented new flexible change policies.

Can I find flights from St. Louis to Trenton, New Jersey for under $300 on Cheapflights?

Yes, there are multiple flights from St. Louis to Trenton, New Jersey for under $300. The cheapest flight booked recently is on Frontier for just $248, but on average you can expect to pay $484.

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

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

What are the cheapest flights from St. Louis to Trenton, New Jersey?

On average you can expect to pay $242 for a flight from St. Louis to Trenton, New Jersey. The cheapest flight overall is $242 while the most popular route, (Lambert-St Louis - Trenton Trenton-Mercer) is currently priced at $238.

COVID Restrictions

View COVID Travel Restrictions for Trenton, NJ

Do I need a COVID test to fly to Trenton from St. Louis?

Information is based on travel restrictions for travel to Trenton Trenton-Mercer within the United States

Most visitors from Lambert-St Louis need to provide a negative COVID-19 test result and/or quarantine to enter Trenton Trenton-Mercer.

COVID-19 testing requirements
Visitors from Lambert-St Louis must present a negative RT-PCR (NAAT) or Antigen (quick-test) test taken 72 hours before departing to Trenton Trenton-Mercer.

Quarantine requirements
Visitors from Lambert-St Louis are not required to quarantine after entering Trenton Trenton-Mercer.

Do I need a test to fly back to St. Louis from Trenton?

Returning to Lambert-St Louis from Trenton Trenton-Mercer

COVID-19 testing requirements
Visitors from Trenton Trenton-Mercer must present a negative RT-PCR (NAAT) or Antigen (quick-test) test taken 72 hours before departing to Lambert-St Louis.

Quarantine requirements
Visitors from Trenton Trenton-Mercer are not required to quarantine after entering Lambert-St Louis.

Hide COVID Travel Restrictions for Trenton, NJ

Alternative routes for St. Louis to Trenton

See prices for flight routes from nearby airports that may be better suited for you.

Destination information for Trenton

Things to know before you go - useful duration and weather info for your trip from St. Louis to Trenton.
Average temperature for October in Trenton
69.8 °F
Avg rainfall for October in Trenton
3.4 ″

Airports servicing St. Louis

Airports servicing Trenton

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