What is the cheapest flight from Trenton to St. Louis?

In the last 3 days, the lowest price for a flight from Trenton to St. Louis was $95 for a one-way ticket and $191 for a round-trip. Visit our flight page for the latest deals!>/a>

Do I need a passport to fly between Trenton and St. Louis?

No, a passport isn't needed to fly from Trenton to St. Louis. However, local authorities might ask for an official ID. Visit our flight page for the latest deals!>/a>

Which airports will I be using when flying from Trenton to St. Louis?

Trenton and St. Louis are both served by 1 main airport. You will leave Trenton from Trenton-Mercer and will be arriving at Lambert-St Louis. Visit our flight page for the latest deals!>/a>

Which aircraft models fly most regularly from Trenton to St. Louis?

We unfortunately don’t have that data for this specific route.

How does KAYAK find such low prices on flights from Trenton to St. Louis?

KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Trenton to St. Louis. Visit our flight page for the latest deals!>/a>

How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Trenton to St. Louis?

KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to St. Louis from Trenton is likely to change within 7 days, so travelers know whether to wait or book now. Visit our flight page for the latest deals!>/a>

What is the Hacker Fare option on flights from Trenton to St. Louis?

Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to St. Louis with an airline and back to Trenton with another airline. Booking your flights between Trenton and STL can sometimes prove cheaper using this method. Visit our flight page for the latest deals!>/a>

What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Trenton to St. Louis?

Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to St. Louis from Trenton up to 3 days before/after your preferred dates. You can then pick the flights that suit you best. Visit our flight page for the latest deals!>/a>

$95 CHEAP FLIGHTS from Trenton to St. Louis (TTN - STL)

TTN - STL

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Flights Deals

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

Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Trenton to St. Louis that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.

Round-trip

One-way

Last minute

Recent round-trip flight deals from Trenton to St. Louis

KAYAK's recommended round-trip deals from the most popular airlines that fly from Trenton to St. Louis.

Discover the best prices for you by selecting your travel dates on KAYAK.

8:00 am - 12:06 amTTN-STL

17h 06m1 stop

5:55 pm - 11:52 pmSTL-TTN

28h 57m1 stop

$191Frontier

Find Deal

Tue, May 13 - Fri, May 16

6:45 am - 12:06 amTTN-STL

18h 21m1 stop

5:45 pm - 12:57 pmSTL-TTN

18h 12m1 stop

$198Frontier

Find Deal

Mon, May 12 - Wed, May 14

8:00 am - 12:06 amTTN-STL

17h 06m1 stop

5:45 pm - 12:57 pmSTL-TTN

18h 12m1 stop

$208Frontier

Find Deal

Tue, May 13 - Wed, May 14

6:45 am - 12:06 amTTN-STL

18h 21m1 stop

5:45 pm - 10:40 pmSTL-TTN

27h 55m1 stop

$218Frontier

Find Deal

Sun, May 18 - Tue, May 20

1:42 pm - 12:14 amTTN-STL

11h 32m1 stop

5:45 pm - 11:52 pmSTL-TTN

29h 07m1 stop

$221Frontier

Find Deal

Fri, May 16 - Sun, May 18

6:17 pm - 11:37 pmTTN-STL

6h 20m1 stop

5:35 pm - 8:07 pmSTL-TTN

25h 32m1 stop

$228Frontier

Find Deal

Tue, Jun 3 - Tue, Jun 10

6:45 am - 11:49 pmTTN-STL

18h 04m1 stop

5:45 pm - 4:17 pmSTL-TTN

21h 32m1 stop

$238Frontier

Find Deal

Mon, Jun 2 - Wed, Jun 4

5:20 pm - 11:49 pmTTN-STL

7h 29m1 stop

5:35 pm - 11:39 pmSTL-TTN

29h 04m1 stop

$241Frontier

Find Deal

Mon, Jun 2 - Fri, Jun 6

8:00 am - 11:37 pmTTN-STL

16h 37m1 stop

5:35 pm - 11:39 pmSTL-TTN

29h 04m1 stop

$248Frontier

Find Deal

Wed, Jun 4 - Sat, Jun 7

1:42 pm - 12:06 amTTN-STL

11h 24m1 stop

5:47 pm - 4:22 pmSTL-TTN

21h 35m1 stop

$249Frontier

Find Deal

Thu, May 15 - Mon, Jun 30

Useful Info

Cheapest flight	$95

Flight from Trenton to St. Louis

When to book flights from Trenton to St. Louis

Are your dates flexible? Find out the best times to travel from Trenton to St. Louis based on our flight data from the last year. Discover the cheapest month and even day to fly.

Estimated round-trip price

KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

What is the cheapest flight from Trenton to St. Louis?
In the last 3 days, the lowest price for a flight from Trenton to St. Louis was $95 for a one-way ticket and $191 for a round-trip.
Do I need a passport to fly between Trenton and St. Louis?
No, a passport isn't needed to fly from Trenton to St. Louis. However, local authorities might ask for an official ID.
Which airports will I be using when flying from Trenton to St. Louis?
Trenton and St. Louis are both served by 1 main airport. You will leave Trenton from Trenton-Mercer and will be arriving at Lambert-St Louis.
Which aircraft models fly most regularly from Trenton to St. Louis?
We unfortunately don’t have that data for this specific route.
How does KAYAK find such low prices on flights from Trenton to St. Louis?
KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Trenton to St. Louis.
How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Trenton to St. Louis?
KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to St. Louis from Trenton is likely to change within 7 days, so travelers know whether to wait or book now.
What is the Hacker Fare option on flights from Trenton to St. Louis?
Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to St. Louis with an airline and back to Trenton with another airline. Booking your flights between Trenton and STL can sometimes prove cheaper using this method.
What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Trenton to St. Louis?
Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to St. Louis from Trenton up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Everything you need to know for your flight from Trenton to St. Louis

Airports

Cabin class

Complete your trip

Direct Flights

Flights to other cities

Origins

Other airports

Return flight deals

Information on your arrival and departure airports

St. Louis (STL)

Trenton (TTN)

TTN - STL

$95 Find Cheap Flights from Trenton to St. Louis

KAYAK searches hundreds of travel sites at once for deals on flights to St. Louis

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

Recent round-trip flight deals from Trenton to St. Louis

Recent one-way flight deals from Trenton to St. Louis

Recent last minute flight deals from Trenton to St. Louis

Good to know

When to book flights from Trenton to St. Louis

FAQs for booking flights from Trenton to St. Louis

What is the cheapest flight from Trenton to St. Louis?

In the last 3 days, the lowest price for a flight from Trenton to St. Louis was $95 for a one-way ticket and $191 for a round-trip.

Do I need a passport to fly between Trenton and St. Louis?

No, a passport isn't needed to fly from Trenton to St. Louis. However, local authorities might ask for an official ID.

Which airports will I be using when flying from Trenton to St. Louis?

Trenton and St. Louis are both served by 1 main airport. You will leave Trenton from Trenton-Mercer and will be arriving at Lambert-St Louis.

Which aircraft models fly most regularly from Trenton to St. Louis?

We unfortunately don’t have that data for this specific route.

How does KAYAK find such low prices on flights from Trenton to St. Louis?

KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Trenton to St. Louis.

How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Trenton to St. Louis?

KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to St. Louis from Trenton is likely to change within 7 days, so travelers know whether to wait or book now.

What is the Hacker Fare option on flights from Trenton to St. Louis?

Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to St. Louis with an airline and back to Trenton with another airline. Booking your flights between Trenton and STL can sometimes prove cheaper using this method.

What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Trenton to St. Louis?

Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to St. Louis from Trenton up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Everything you need to know for your flight from Trenton to St. Louis

Information on your arrival and departure airports

Cabin class types available on flights from Trenton to St. Louis

Complete your trip to St. Louis with a hotel stay or car rental

Find direct flights to and from Trenton and St. Louis

Flights to other popular destinations

Flights from domestic origins to St. Louis

Choose which airport to fly into in St. Louis

Find deals for your return flight