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

Frontier and Allegiant Air are the most popular carriers 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 59% of people opting to fly with this airline when traveling to Florida Keys. Keep in mind that there are 4 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 is 1 operator available for flights from Trenton-Mercer Airport to Florida Keys as of July 2026.

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.

$135 Cheap Flights from Trenton, New Jersey to Florida Keys in 2026

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

Round-trip

One-way

Cheap round-trip flights

Enter your travel dates to find the best prices.

8:44 pm - 9:24 am

TTN

EYW

12h 40m

1 stop

10:59 am - 6:42 pm

EYW

TTN

7h 43m

1 stop

$355Multiple Airlines

Fri, Sep 11 - Mon, Sep 14

6:23 pm - 12:19 pm

TTN

EYW

17h 56m

2 stops

8:54 pm - 8:35 am

EYW

TTN

11h 41m

1 stop

$392Multiple Airlines

Thu, Nov 5 - Sun, Nov 8

10:33 am - 2:08 pm

TTN

EYW

27h 35m

1 stop

8:54 pm - 8:35 am

EYW

TTN

11h 41m

1 stop

$398Allegiant Air

Thu, Nov 5 - Sun, Nov 8

4:26 pm - 5:47 pm

TTN

MIA

25h 21m

2 stops

8:30 am - 10:28 am

MIA

TTN

25h 58m

2 stops

$411Frontier

Tue, Aug 11 - Sat, Aug 15

12:48 pm - 3:27 pm

TTN

EYW

26h 39m

1 stop

10:56 am - 5:44 pm

EYW

TTN

30h 48m

2 stops

$455Allegiant Air

Wed, Aug 12 - Sun, Aug 16

12:48 pm - 3:27 pm

TTN

EYW

26h 39m

1 stop

12:05 pm - 11:40 pm

EYW

TTN

11h 35m

1 stop

$456Multiple Airlines

Wed, Aug 12 - Sun, Aug 16

4:26 pm - 12:31 pm

TTN

EYW

20h 05m

1 stop

12:07 pm - 12:04 pm

EYW

TTN

23h 57m

1 stop

$463Multiple Airlines

Thu, Aug 13 - Mon, Aug 17

6:05 am - 10:27 am

TTN

EYW

28h 22m

2 stops

12:07 pm - 12:04 pm

EYW

TTN

23h 57m

1 stop

$553Multiple Airlines

Thu, Aug 13 - Mon, Aug 17

8:32 am - 11:21 am

TTN

EYW

26h 49m

1 stop

10:11 pm - 5:22 pm

EYW

TTN

19h 11m

1 stop

$654Multiple Airlines

Sat, Nov 21 - Sat, Nov 28

8:34 pm - 11:19 am

TTN

EYW

38h 45m

2 stops

10:11 pm - 5:22 pm

EYW

TTN

19h 11m

1 stop

$692Multiple Airlines

Sat, Nov 21 - Sat, Nov 28

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Allegiant Air flights from Trenton, New Jersey to Florida Keys

Our best Allegiant Air deals on Trenton, New Jersey to Florida Keys flight tickets

Allegiant Air

Nov 5

TTN10:33 amTrenton-Mercer

27h 35m

1 stop

EYW2:08 pmKey West

Nov 8

EYW8:54 pmKey West

11h 41m

1 stop

TTN8:35 amTrenton-Mercer

$398

Allegiant Air

Aug 12

TTN12:48 pmTrenton-Mercer

26h 39m

1 stop

EYW3:27 pmKey West

Aug 16

EYW10:56 amKey West

30h 48m

2 stops

TTN5:44 pmTrenton-Mercer

$455

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

Cheapest round-trip

Quickest round-trip

TrentonKey West

TTN - EYW

TTNEYW

Trenton-Mercer

Fri 9/11

8:44 pm-9:24 am

1 stop12h 40m

Key West

Mon 9/14

10:59 am-6:42 pm

1 stop7h 43m

$355

TrentonKey West

TTN - EYW

TTNEYW

Trenton-Mercer

Thu 11/5

6:23 pm-12:19 pm

2 stops17h 56m

Key West

Sun 11/8

8:54 pm-8:35 am

1 stop11h 41m

$392

TrentonKey West

TTN - EYW

TTNEYW

Trenton-Mercer

Thu 11/5

10:33 am-2:08 pm

1 stop27h 35m

Key West

Sun 11/8

8:54 pm-8:35 am

1 stop11h 41m

$398

TrentonMiami

TTN - MIA

TTNMIA

Trenton-Mercer

Tue 8/11

4:26 pm-5:47 pm

2 stops25h 21m

Miami

Sat 8/15

8:30 am-10:28 am

2 stops25h 58m

$411

TrentonKey West

TTN - EYW

TTNEYW

Trenton-Mercer

Wed 8/12

12:48 pm-3:27 pm

1 stop26h 39m

Key West

Sun 8/16

10:56 am-5:44 pm

2 stops30h 48m

$455

TrentonKey West

TTN - EYW

TTNEYW

Trenton-Mercer

Wed 8/12

12:48 pm-3:27 pm

1 stop26h 39m

Key West

Sun 8/16

12:05 pm-11:40 pm

1 stop11h 35m

$456

TrentonKey West

TTN - EYW

TTNEYW

Trenton-Mercer

Thu 8/13

4:26 pm-12:31 pm

1 stop20h 05m

Key West

Mon 8/17

12:07 pm-12:04 pm

1 stop23h 57m

$463

TrentonKey West

TTN - EYW

TTNEYW

Trenton-Mercer

Thu 8/13

6:05 am-10:27 am

2 stops28h 22m

Key West

Mon 8/17

12:07 pm-12:04 pm

1 stop23h 57m

$553

TrentonKey West

TTN - EYW

TTNEYW

Trenton-Mercer

Sat 11/21

8:32 am-11:21 am

1 stop26h 49m

Key West

Sat 11/28

10:11 pm-5:22 pm

1 stop19h 11m

$654

TrentonKey West

TTN - EYW

TTNEYW

Trenton-Mercer

Sat 11/21

8:34 pm-11:19 am

2 stops38h 45m

Key West

Sat 11/28

10:11 pm-5:22 pm

1 stop19h 11m

$692

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 month to fly to Florida Keys?

The month of March is another great option to travel to Florida Keys, with average flight prices from Trenton, New Jersey averaging around $135.

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	12h 40m
Direct flights	None

The fastest flight from Trenton, New Jersey to Florida Keys takes 12h 40m

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

Frequently asked questions about flying from Trenton, New Jersey to Florida Keys

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 is 1 operator available for flights from Trenton-Mercer Airport to Florida Keys as of July 2026.
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 A321neo, making up 20.39% of the total bookings. Other popular models include Airbus A320neo with 20.26%, Airbus A320-100/200 with 15.56%, and Airbus A321-100/200 with 9.93%.

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.