In terms of precipitation, rainfall in Key West ranges from 1.5 - 6.7 inches per month. September is typically the wettest month, when rainfall can reach 6.7 in. February is typically the driest time to visit Key West when rainfall is around 1.5 in.

If weather is an important factor for your trip to Key West, use this chart to help with planning. For those seeking warmer temperatures, June is the ideal time of year to visit, when temperatures reach an average of 84.2 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 69.8 F).

How far in advance should I book a flight from Trenton, New Jersey to Key West?

To save on the cost of your flight from Trenton, New Jersey to Key West, book at least 35 days before your planned departure. Booking around this time can save you about 56% on the cost of this flight compared to booking a flight leaving this week. We have found prices from $416 if you need a flight within two weeks. For flights within the next 72 hours, you can find tickets from as low as $637.

What is the cheapest month to fly from Trenton, New Jersey to Key West?

September is one of the best times of the year to fly to Key West from Trenton, New Jersey. Prices for September average $465 per person but you can even find prices for as low as $225. The most expensive prices can be found in the month of December. Opting for a September flight can save you 23% on your journey compared to booking in December

What is the cheapest time of day to fly from TTN to EYW?

When flying from Trenton, New Jersey to Key West, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

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.

$135+ Cheap Flights from Trenton, NJ to Key West

Home Search by date Vacation packages Hotels Flight deals Car rental Travel tips & news

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

Round-trip from	$449 (Kiwi.com)
One-way from	$135 (Trip.com)
Popular in	December
Cheapest in	September
Average price	$371

From Trenton-Mercer to Key West

Search Deals

One-way flight from Trenton-Mercer to Key West

Search Deals

Highest demand for flights based on searches. 0% potential increase in price ($4 potential increase over avg. RT price).

Search Deals

Cheapest flight prices on average. 2% potential price decrease ($10 potential savings vs. average RT price).

Search Deals

Average for round-trip flights in September 2025

Search Deals

Find flight deals from Trenton to Key West

One-way flights from Trenton to Key West
Search for one-way flight options from Trenton to Key West. Find affordable one-way fares based on user searches. Data last updated September 11, 2025.

Sat 10/411:45 amTTN - EYW

1 stop26h 55mMultiple Airlines

Deal found 9/11

$135

Fly from

Fly to

Route

Depart

Return

Price

TrentonKey West

TTN - EYW

TTNEYW

Trenton-Mercer

Sat 10/4

11:45 am-2:40 pm

1 stop26h 55m

$135

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/11

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.

Cheapflights Insights

Everything you need to know about your flight from Trenton to Key West

What is the cheapest month to book a flight from Trenton, New Jersey to Key West?

Currently, August is the cheapest month in which you can book a flight from Trenton, New Jersey to Key West (average of $328). Flying from Trenton, New Jersey to Key West in March is currently the most expensive (average of $491). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

Related info for your journey

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.
What is the cheapest month to book a flight from Trenton, New Jersey to Key West?
Currently, August is the cheapest month in which you can book a flight from Trenton, New Jersey to Key West (average of $328). Flying from Trenton, New Jersey to Key West in March is currently the most expensive (average of $491). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Browse thousands of different options on Cheapflights for your next trip

Alternative routes for Trenton to Key West

John F Kennedy Intl to Miami flights

Newark to Fort Lauderdale flights

Newark to Miami flights

LaGuardia to Fort Lauderdale flights

LaGuardia to Miami flights

John F Kennedy Intl to Orlando flights

John F Kennedy Intl to Fort Lauderdale flights

Newark to Orlando flights

LaGuardia to Orlando flights

John F Kennedy Intl to West Palm Beach flights

LaGuardia to Tampa flights

Philadelphia to Orlando flights

Newark to West Palm Beach flights

Newark to Tampa flights

John F Kennedy Intl to Tampa flights

Philadelphia to Fort Lauderdale flights

LaGuardia to West Palm Beach flights

Philadelphia to Miami flights

Atlantic City to Orlando flights

John F Kennedy Intl to Fort Myers flights

Philadelphia to Tampa flights

Atlantic City to Fort Lauderdale flights

Newark to Fort Myers flights

LaGuardia to Fort Myers flights

John F Kennedy Intl to Sarasota flights

John F Kennedy Intl to Jacksonville flights

Trenton to Orlando flights

Philadelphia to West Palm Beach flights

Atlantic City to West Palm Beach flights

Newark to Sarasota flights

LaGuardia to Sarasota flights

Newark to Jacksonville flights

Newark to Key West flights

LaGuardia to Jacksonville flights

Atlantic City to Tampa flights

John F Kennedy Intl to Key West flights

Philadelphia to Fort Myers flights

LaGuardia to Pensacola flights

Philadelphia to Key West flights

Philadelphia to Jacksonville flights

Newark to Pensacola flights

LaGuardia to Key West flights

Trenton to Tampa flights

John F Kennedy Intl to Pensacola flights

John F Kennedy Intl to Valparaiso flights

Atlantic City to Fort Myers flights

John F Kennedy Intl to Panama City flights

LaGuardia to Panama City flights

John F Kennedy Intl to Daytona Beach flights

Newark to Panama City flights

Other flights to Key West

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.

$135+ 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 10/4. Fares are subject to change and may not be available on all flights or dates of travel.

Find cheap flights from Trenton to Key West with Cheapflights

1. Tell us where you want to go

2. Select your favorite providers

3. Compare prices and book

Cheap flight deals from Trenton to Key West

Round-trip from

One-way from

Popular in

Cheapest in

Average price

Find flight deals from Trenton to Key West

One-way flights from Trenton to Key WestSearch for one-way flight options from Trenton to Key West. Find affordable one-way fares based on user searches. Data last updated September 11, 2025.

Search for one-way flight options from Trenton to Key West. Find affordable one-way fares based on user searches. Data last updated September 11, 2025.

Cheapflights Fare Finder

Use the filters below to find and compare flights from Trenton to Key West that are best for you.

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.

Cheapflights Insights

Everything you need to know about your flight from Trenton to Key West

What is the cheapest month to book a flight from Trenton, New Jersey to Key West?

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.

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

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

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

What is the cheapest month to book a flight from Trenton, New Jersey to Key West?

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.

100% Free

Book with Flexibility

Travel Smart

One-way flights from Trenton to Key West
Search for one-way flight options from Trenton to Key West. Find affordable one-way fares based on user searches. Data last updated September 11, 2025.