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Key Largo

$126+ Cheap flights from Trenton, NJ (TTN) to Key Largo, FL

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 9/13. Fares are subject to change and may not be available on all flights or dates of travel.
TTN — MIA
Aug 8 — Aug 151
Sat 8/8
Sat 8/15
1 adult, Economy
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Cheap flight deals from Trenton to Key Largo

One-way flights from Trenton to Key Largo
Search for one-way flight options from Trenton to Key Largo. Find affordable one-way fares based on user searches. Data last updated July 9, 2026.

This Kiwi.com deal was found by Cheapflights users on 7/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/1312:13 pm
TTN
-
MIA
2 stops34h 08m
Multiple Airlines
Deal found 7/8$126
This Kiwi.com deal was found by Cheapflights users on 7/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/206:29 pm
TTN
-
MIA
2 stops28h 36m
Multiple Airlines
Deal found 7/7$132
This Kiwi.com deal was found by Cheapflights users on 7/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/611:50 am
TTN
-
MIA
2 stops35h 16m
Multiple Airlines
Deal found 7/6$161
This Kiwi.com deal was found by Cheapflights users on 7/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/216:30 am
TTN
-
MIA
2 stops16h 35m
Frontier
Deal found 7/7$171
This Kiwi.com deal was found by Cheapflights users on 7/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/512:48 pm
TTN
-
MIA
2 stops28h 59m
Multiple Airlines
Deal found 7/6$172
This Kiwi.com deal was found by Cheapflights users on 7/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/87:23 pm
TTN
-
MIA
2 stops27h 37m
Multiple Airlines
Deal found 7/8$177
This Kiwi.com deal was found by Cheapflights users on 7/4. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/144:26 pm
TTN
-
MIA
2 stops21h 27m
Frontier
Deal found 7/4$182
This Kiwi.com deal was found by Cheapflights users on 7/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/2712:13 pm
TTN
-
MIA
2 stops30h 57m
Multiple Airlines
Deal found 7/6$185
This Kiwi.com deal was found by Cheapflights users on 7/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/166:05 am
TTN
-
MIA
2 stops40h 14m
Frontier
Deal found 7/8$198
This Lucky2Go deal was found by Cheapflights users on 7/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Lucky2Go is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 7/186:05 am
TTN
-
MIA
2 stops17h 35m
Frontier
Deal found 7/8$215
This Kiwi.com deal was found by Cheapflights users on 7/4. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/146:34 pm
TTN
-
MIA
3 stops25h 55m
Multiple Airlines
Deal found 7/4$221

Find flight deals from Trenton to Key Largo

Keep the following information in mind while searching for Trenton to Key Largo flight deals. Data was last updated July 9, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Popular in

August

Cheapest in

October

Average price

$249
Provider with most accurate pricing for New York (NYC)-Miami flight deals.
Search Deals
Provider most trusted by Cheapflights users for New York (NYC)-Miami flights.
Search Deals
Highest demand for flights based on searches. 17% potential increase in price ($42 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 5% potential price decrease ($11 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in July 2026
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Trenton to Key Largo 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 2,558,603 searches. Data last updated July 9, 2026.
Use the filters below to find and compare flights from Trenton to Key Largo that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest one-way

TrentonMiami

TTN - MIA

TTNMIA

Trenton-Mercer

Sun 9/13

12:13 pm-10:21 pm

2 stops34h 08m

$126

TrentonMiami

TTN - MIA

TTNMIA

Trenton-Mercer

Thu 8/20

6:29 pm-11:05 pm

2 stops28h 36m

$132

TrentonMiami

TTN - MIA

TTNMIA

Trenton-Mercer

Thu 8/6

11:50 am-11:06 pm

2 stops35h 16m

$161
Quickest one-way

TrentonMiami

TTN - MIA

TTNMIA

Trenton-Mercer

Fri 8/21

6:30 am-11:05 pm

2 stops16h 35m

$171

TrentonMiami

TTN - MIA

TTNMIA

Trenton-Mercer

Fri 9/4

12:49 pm-8:29 pm

2 stops31h 40m

$172

TrentonMiami

TTN - MIA

TTNMIA

Trenton-Mercer

Wed 8/5

12:48 pm-5:47 pm

2 stops28h 59m

$172

TrentonMiami

TTN - MIA

TTNMIA

Trenton-Mercer

Fri 8/14

4:26 pm-1:53 pm

2 stops21h 27m

$182

TrentonMiami

TTN - MIA

TTNMIA

Trenton-Mercer

Sat 7/18

6:05 am-11:40 pm

2 stops17h 35m

$215

TrentonMiami

TTN - MIA

TTNMIA

Trenton-Mercer

Fri 8/14

6:34 pm-8:29 pm

3 stops25h 55m

$221

TrentonMiami

TTN - MIA

TTNMIA

Trenton-Mercer

Mon 7/27

6:05 am-2:12 pm

2 stops32h 07m

$237

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/8

Showing 1-10 of 11 resultsSorted by cheapest first
1
2

Best time to book a flight from Trenton to Key Largo

Have a flexible travel schedule? Discover the best time to fly to Key Largo from Trenton with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Trenton to Key Largo
No data available for this route at this time. Please check back soon.

Reviews of airlines servicing Key Largo

Get insights into the airlines that provide service to Key Largo. 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 Key Largo. Reviews last updated July 9, 2026.
Get a feel of what it's like to fly with Frontier from Trenton to Key Largo by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Frontier
5.6
Fair
2,835 reviews

Food

4.5

Entertainment

4.3

Comfort

5.4

Overall

5.6

Crew

6.5

Boarding

5.9

Reviews

1 / 20
8.0
Excellent

Anonymous,Jun 2025

TTN - TPA

TTN is a small airport for Frontier. Drop off is easy as is parking. The location is remote so there is zero traffic. The place could use a renovation but for the price you pay it is not necessary. Good-Staff is very friendly. Flight left on time. Bad- run down, deplaning/boarding on the tarmac. I got wet on the stairs outside of the plane while waiting to board.
Frontier
5.6
Fair
2,835 reviews
Frontier
5.6
Fair
2,835 reviews

Food

4.5

Entertainment

4.3

Comfort

5.4

Overall

5.6

Crew

6.5

Boarding

5.9

Reviews

1 / 20
8.0
Excellent

Anonymous,Jun 2025

TTN - TPA

TTN is a small airport for Frontier. Drop off is easy as is parking. The location is remote so there is zero traffic. The place could use a renovation but for the price you pay it is not necessary. Good-Staff is very friendly. Flight left on time. Bad- run down, deplaning/boarding on the tarmac. I got wet on the stairs outside of the plane while waiting to board.

Related info for your journey

Find useful and relevant information for your journey from Trenton to Key Largo. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly from for flights from Trenton to Key Largo?

    Most people fly from Trenton-Mercer (TTN) if they book a flight from Trenton to Key Largo. On average, Trenton-Mercer has 0 outbound flights to Key Largo per day from 3 airlines. Trenton-Mercer is conveniently located just 4.8 mi from Trenton’s city center.

  • Can I find deals for flights from Trenton to Key Largo that include hotel bookings?

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

  • How can I find direct flights from Trenton to Key Largo?

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

  • Can I find deals for business class flights from Trenton to Key Largo?

    Yes. Cheapflights offers flight deals from Trenton to Key Largo by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

See more FAQs

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Top 3 airlines flying from Trenton to Key Largo

Discover the top 3 airlines that operate flights from Trenton to Key Largo. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated July 9, 2026.
AirlineCheapestAverageFlexibilityOn-time
Allegiant AirCheapest$78Average$113FlexibilityNo cancel feeOn-time88%
FrontierCheapest$80Average$198FlexibilityNo cancel feeOn-time62%
American AirlinesCheapest$286Average$343FlexibilityNo cancel feeOn-time71%

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