HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Key West

$172+ Cheap flights from Trenton, NJ to Key West (TTN - EYW)

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 10/15. Fares are subject to change and may not be available on all flights or dates of travel.
TTN — EYW
Aug 28 — Sep 41
Fri 8/28
Fri 9/4
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Trenton to Key West with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

Cheap flight deals from Trenton to Key West

Cheapest flights from Trenton to Key West
Explore the most affordable flight options available from Trenton to Key West. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 29, 2026.

This Kiwi.com deal was found by Cheapflights users on 7/23. 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.
Mon 9/75:18 pm
TTN
-
EYW
1 stop19h 16m
Multiple Airlines
Mon 9/1410:59 am
EYW
-
TTN
1 stop7h 43m
Multiple Airlines
Deal found 7/23$354
This Kiwi.com deal was found by Cheapflights users on 7/27. 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 9/118:44 pm
TTN
-
EYW
1 stop12h 40m
Multiple Airlines
Mon 9/1410:59 am
EYW
-
TTN
1 stop7h 43m
Multiple Airlines
Deal found 7/27$355
This Kiwi.com deal was found by Cheapflights users on 7/28. 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 8/1212:48 pm
TTN
-
EYW
1 stop26h 39m
Allegiant Air
Sun 8/1610:56 am
EYW
-
TTN
2 stops30h 48m
Allegiant Air
Deal found 7/28$455
This Kiwi.com deal was found by Cheapflights users on 7/28. 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 8/1212:48 pm
TTN
-
EYW
1 stop26h 39m
Multiple Airlines
Sun 8/1612:05 pm
EYW
-
TTN
1 stop11h 35m
Multiple Airlines
Deal found 7/28$456
This Kiwi.com deal was found by Cheapflights users on 7/25. 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 8/911:15 am
TTN
-
EYW
1 stop24h 12m
Multiple Airlines
Thu 8/1311:04 am
EYW
-
TTN
1 stop28h 37m
Multiple Airlines
Deal found 7/25$526
This Kiwi.com deal was found by Cheapflights users on 7/28. 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.
Sat 11/218:32 am
TTN
-
EYW
1 stop26h 49m
Multiple Airlines
Sat 11/2810:11 pm
EYW
-
TTN
1 stop19h 11m
Multiple Airlines
Deal found 7/28$654
This Justfly.com deal was found by Cheapflights users on 7/24. 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 Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/277:19 pm
TTN
-
EYW
3 stops17h 00m
Breeze Airways
Sat 1/25:35 pm
EYW
-
TTN
2 stops25h 04m
Breeze Airways
Deal found 7/24$2,436

Find flight deals from Trenton to Key West

Discover tips and strategies to find the most affordable flight options for your journey from Trenton (TTN) to Key West (EYW). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated July 29, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$354
(Kiwi.com)

One-way from

$172
(Kiwi.com)

Popular in

December

Cheapest in

January

Average price

$484
Provider with most accurate pricing for Trenton-Mercer-Key West flight deals.
Search Deals
Provider most trusted by Cheapflights users for Trenton-Mercer-Key West flights.
Search Deals
From Trenton-Mercer to Key West
Search Deals
One-way flight from Trenton-Mercer to Key West
Search Deals
High demand for flights, 1% potential price rise
Search Deals
Cheapest flight prices on average. 2% 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 West 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 29, 2026.
Use the filters below to find and compare flights from Trenton to Key West 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

Mon 9/7

5:18 pm-12:34 pm

1 stop19h 16m

Key West

Mon 9/14

10:59 am-6:42 pm

1 stop7h 43m

$356

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

Sun 8/9

11:15 am-11:27 am

1 stop24h 12m

Key West

Thu 8/13

11:04 am-3:41 pm

1 stop28h 37m

$526

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
Cheapest one-way
Quickest one-way

TrentonKey West

TTN - EYW

TTNEYW

Trenton-Mercer

Thu 10/15

11:03 am-1:13 pm

1 stop26h 10m

$172

TrentonKey West

TTN - EYW

TTNEYW

Trenton-Mercer

Thu 10/15

6:38 pm-9:24 am

3 stops38h 46m

$230

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/28

Sorted by cheapest first

Compare providers for flights from Trenton to Key West

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Trenton to Key West in July.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Trenton, New Jersey-Key West flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Trenton, New Jersey-Key West flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Trenton, New Jersey-Key West flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Trenton, New Jersey-Key West flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Trenton, New Jersey-Key West flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from Trenton to Key West

Have a flexible travel schedule? Discover the best time to fly to Key West 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.

Related info for your journey

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

  • How long is the flight from Trenton, New Jersey to Key West?

    Airlines like Allegiant Air fly from Trenton, New Jersey to Key West in about 26h 39m. The time it takes to get you to your destination can typically vary by up to . The distance between Trenton, New Jersey and Key West is about 1157 mi.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Trenton to Key West 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

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Trenton to Key West

See prices for flight routes from nearby airports that may be better suited for you.
Newark to Orlando flights
LaGuardia to Orlando flights
LaGuardia to Miami flights
Newark to Miami flights
Newark to Fort Lauderdale flights
John F Kennedy Intl to Orlando flights
John F Kennedy Intl to Miami flights
John F Kennedy Intl to Fort Lauderdale flights
LaGuardia to Fort Lauderdale flights
Philadelphia to Orlando flights
Newark to Tampa flights
Philadelphia to Fort Lauderdale flights
John F Kennedy Intl to Tampa flights
LaGuardia to Tampa flights
Philadelphia to Miami flights
Newark to Fort Myers flights
Philadelphia to Tampa flights
Atlantic City to Orlando flights
Newark to Jacksonville flights
John F Kennedy Intl to Sarasota flights
John F Kennedy Intl to Fort Myers flights
Newark to Sarasota flights
LaGuardia to Fort Myers flights
John F Kennedy Intl to Jacksonville flights
LaGuardia to Jacksonville flights
LaGuardia to Sarasota flights
Trenton to Orlando flights
Newark to Key West flights
Philadelphia to Fort Myers flights
John F Kennedy Intl to Key West flights
John F Kennedy Intl to Daytona Beach flights
Philadelphia to Jacksonville flights
Philadelphia to Key West flights
Philadelphia to Sarasota flights
LaGuardia to Pensacola flights
Atlantic City to Fort Lauderdale flights
Trenton to Tampa flights
Newark to Pensacola flights
Newark to Daytona Beach flights
Philadelphia to Pensacola flights
John F Kennedy Intl to Panama City flights
Trenton to Fort Lauderdale flights
LaGuardia to Daytona Beach flights
Newark to Panama City flights

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.