What is the cheapest airline that flies from Trenton-Mercer to Florida Keys?

Frontier is the most popular carrier operating from Trenton-Mercer to Florida Keys

What airlines fly to Florida Keys?

American Airlines, United Airlines and Delta are the top three most popular airlines that fly to Florida Keys from Trenton, New Jersey according to our data. American Airlines is the first choice among our users, with 65% of people opting to fly with this airline when traveling to Florida Keys. Keep in mind that there are 5 different airlines that fly to Florida Keys on a routine basis, so you have a few additional options to choose from.

When did momondo last update prices for flights from Trenton-Mercer Airport to Florida Keys?

Prices for flights from Trenton-Mercer Airport to Florida Keys are refreshed on a daily basis.

How many operators does momondo search for flights from Trenton-Mercer Airport to Florida Keys?

There are 2 operators available for flights from Trenton-Mercer Airport to Florida Keys as of December 2025.

How old do you have to be to fly from Trenton-Mercer Airport to Florida Keys?

The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Trenton-Mercer Airport to Florida Keys.

What documentation or ID do you need to fly to Florida Keys?

The necessary travel and health documents for your Florida Keys 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.

$107 Cheap Flights from Trenton to Florida Keys in 2025/26

1 adult

0 bags

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Find the cheapest flights from Trenton, New Jersey to Florida Keys

Round-trip

One-way

Last minute

Cheap round-trip flights

Enter your travel dates to find the best prices.

6:00 am - 12:26 pm

TTN

EYW

6h 26m1 stop

2:25 pm - 11:39 pm

EYW

TTN

33h 14m2 stops

$229Multiple Airlines

Mon, Feb 23 - Fri, Feb 27

6:00 am - 12:26 pm

TTN

EYW

6h 26m1 stop

1:06 pm - 11:39 pm

EYW

TTN

10h 33m1 stop

$245Multiple Airlines

Mon, Feb 23 - Fri, Feb 27

3:21 pm - 10:59 am

TTN

MIA

19h 38m2 stops

6:59 pm - 11:59 pm

MIA

TTN

29h 00m2 stops

$246Frontier

Wed, Feb 4 - Wed, Feb 11

9:59 pm - 12:30 pm

TTN

EYW

14h 31m1 stop

10:06 am - 11:59 pm

EYW

TTN

13h 53m1 stop

$246Multiple Airlines

Thu, Jan 1 - Thu, Jan 8

7:53 pm - 1:30 pm

TTN

EYW

17h 37m1 stop

9:46 am - 11:09 am

EYW

TTN

25h 23m1 stop

$255Multiple Airlines

Thu, Feb 19 - Sun, Feb 22

9:59 pm - 12:30 pm

TTN

EYW

14h 31m1 stop

1:20 pm - 11:59 pm

EYW

TTN

34h 39m2 stops

$273Multiple Airlines

Thu, Jan 1 - Thu, Jan 8

6:10 am - 12:30 pm

TTN

EYW

6h 20m1 stop

1:06 pm - 11:59 pm

EYW

TTN

10h 53m1 stop

$278Multiple Airlines

Mon, Jan 5 - Fri, Jan 9

6:10 am - 8:15 am

TTN

EYW

26h 05m1 stop

10:06 am - 11:59 pm

EYW

TTN

13h 53m1 stop

$286Multiple Airlines

Sat, Jan 3 - Thu, Jan 8

6:10 am - 11:20 am

TTN

EYW

29h 10m2 stops

1:06 pm - 11:59 pm

EYW

TTN

10h 53m1 stop

$287Multiple Airlines

Mon, Jan 5 - Fri, Jan 9

9:59 pm - 12:30 pm

TTN

EYW

14h 31m1 stop

2:30 pm - 1:32 pm

EYW

TTN

23h 02m2 stops

$294Multiple Airlines

Thu, Jan 1 - Wed, Jan 7

momondo Fare Finder

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

Fly from

Fly to

Route

Depart

Return

Price

TrentonKey West

TTN - EYW

TTNEYW

Trenton-Mercer

Mon 2/23

6:00 am-12:26 pm

1 stop6h 26m

Key West

Fri 2/27

2:25 pm-11:39 pm

2 stops33h 14m

$229

TrentonKey West

TTN - EYW

TTNEYW

Trenton-Mercer

Mon 2/23

6:00 am-12:26 pm

1 stop6h 26m

Key West

Fri 2/27

1:06 pm-11:39 pm

1 stop10h 33m

$245

TrentonMiami

TTN - MIA

TTNMIA

Trenton-Mercer

Wed 2/4

3:21 pm-10:59 am

2 stops19h 38m

Miami

Wed 2/11

6:59 pm-11:59 pm

2 stops29h 00m

$246

TrentonKey West

TTN - EYW

TTNEYW

Trenton-Mercer

Thu 1/1

9:59 pm-12:30 pm

1 stop14h 31m

Key West

Thu 1/8

10:06 am-11:59 pm

1 stop13h 53m

$246

TrentonKey West

TTN - EYW

TTNEYW

Trenton-Mercer

Thu 2/19

7:53 pm-1:30 pm

1 stop17h 37m

Key West

Sun 2/22

9:46 am-11:09 am

1 stop25h 23m

$255

TrentonKey West

TTN - EYW

TTNEYW

Trenton-Mercer

Thu 1/1

9:59 pm-12:30 pm

1 stop14h 31m

Key West

Thu 1/8

1:20 pm-11:59 pm

2 stops34h 39m

$273

TrentonKey West

TTN - EYW

TTNEYW

Trenton-Mercer

Mon 1/5

6:10 am-12:30 pm

1 stop6h 20m

Key West

Fri 1/9

1:06 pm-11:59 pm

1 stop10h 53m

$278

TrentonKey West

TTN - EYW

TTNEYW

Trenton-Mercer

Sat 1/3

6:10 am-8:15 am

1 stop26h 05m

Key West

Thu 1/8

10:06 am-11:59 pm

1 stop13h 53m

$286

TrentonKey West

TTN - EYW

TTNEYW

Trenton-Mercer

Mon 1/5

6:10 am-11:20 am

2 stops29h 10m

Key West

Fri 1/9

1:06 pm-11:59 pm

1 stop10h 53m

$287

TrentonKey West

TTN - EYW

TTNEYW

Trenton-Mercer

Thu 1/1

9:59 pm-12:30 pm

1 stop14h 31m

Key West

Wed 1/7

2:30 pm-1:32 pm

2 stops23h 02m

$294

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

How to get the cheapest flight ticket from Trenton, New Jersey to Florida Keys

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

Prices

Airlines

What is the cheapest day to depart on your flight to Florida Keys?

The cheapest day to depart from Trenton, New Jersey to Florida Keys is on a Saturday when prices can be found for as low as $144. The most expensive day to fly to Florida Keys is Friday, with ticket prices averaging around $198.

What is the cheapest time of day to depart on your flight to Florida Keys?

According to our data, the cheapest time of day to fly to Florida Keys is at noon. momondo users have found flights departing from Trenton, New Jersey to Florida Keys at noon for as low as $70. Keep in mind that these prices may fluctuate based on what airline you choose and the time of year you plan to travel. Flights in the afternoon are often more expensive with an average ticket price of $197.

Can stopping save me money on Trenton, New Jersey to Florida Keys flights?

No. A direct flight is the cheapest option for a flight between Trenton, New Jersey to Florida Keys.

Cheap Trenton, New Jersey to Florida Keys flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Trenton, New Jersey to Florida Keys

Fastest flight time	6h 20m
Direct flights	None

The fastest flight from Trenton, New Jersey to Florida Keys takes 6h 20m

There are no direct flights from Trenton, New Jersey to Florida Keys. There are no popular flight routes from Trenton, New Jersey to Florida Keys.

Search flight deals

When did momondo last update prices for flights from Trenton-Mercer Airport to Florida Keys?
Prices for flights from Trenton-Mercer Airport to Florida Keys are refreshed on a daily basis.
How many operators does momondo search for flights from Trenton-Mercer Airport to Florida Keys?
There are 2 operators available for flights from Trenton-Mercer Airport to Florida Keys as of December 2025.
How old do you have to be to fly from Trenton-Mercer Airport to Florida Keys?
The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Trenton-Mercer Airport to Florida Keys.
What documentation or ID do you need to fly to Florida Keys?
The necessary travel and health documents for your Florida Keys 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.
What is the most popular plane model from Trenton, New Jersey to Florida Keys?
Based on momondo bookings for flights between Trenton, New Jersey and Florida Keys, the leading plane model is Airbus A320neo, making up 26.29% of the total bookings. Other popular models include Airbus A321neo with 21.96%, Airbus A320-100/200 with 15.09%, and Airbus A321-100/200 with 7.85%.

Why use momondo?

Why should I use momondo to find a flight deal from Trenton to Florida Keys?

To find the flight that best suits your needs, momondo gathers a range of flights from a large pool of different airlines and agents; you can then use our insights and filters to find and book the right flight to Florida Keys from Trenton.

Can I find flights from Trenton to Florida Keys with flexible booking policies on momondo?

Yes. momondo enables you to select and highlight flights to Florida Keys from Trenton with this policy.

How can momondo help me find flights from Trenton to Florida Keys?

momondo helps you find the best flight between Trenton and Florida Keys 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 Florida Keys right now. Can momondo alert me if prices change?

Yes momondo offers price alerts on flights to Florida Keys from Trenton. After performing a search on this page you should be able to see the price alert set up feature. Simply provide a valid email address and momondo will instantly alert you when prices change.