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Cheap flights from Trenton, New Jersey to Key West from $138

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Trenton, New Jersey to Key West departing on 9/26. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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0 bags

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Find the cheapest flights from Trenton, New Jersey to Key West

Cheap round-trip flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
10:30 am - 10:19 am
TTN
-
EYW
23h 49m
1 stop
Multiple Airlines Logo
12:52 pm - 10:23 am
EYW
-
TTN
21h 31m
1 stop
$245Multiple Airlines
Sat, Sep 26 - Wed, Sep 30
Multiple Airlines Logo
4:43 pm - 11:06 am
TTN
-
EYW
18h 23m
1 stop
Multiple Airlines Logo
12:07 pm - 9:57 am
EYW
-
TTN
21h 50m
1 stop
$358Multiple Airlines
Tue, Jun 9 - Mon, Jun 15
Multiple Airlines Logo
8:31 pm - 11:27 am
TTN
-
EYW
14h 56m
1 stop
Multiple Airlines Logo
12:05 pm - 9:42 am
EYW
-
TTN
21h 37m
1 stop
$378Multiple Airlines
Sun, May 24 - Thu, May 28
Multiple Airlines Logo
9:22 am - 11:27 am
TTN
-
EYW
26h 05m
1 stop
Multiple Airlines Logo
4:41 pm - 11:38 am
EYW
-
TTN
18h 57m
1 stop
$423Multiple Airlines
Sun, Jun 28 - Fri, Jul 3
Multiple Airlines Logo
9:37 pm - 11:25 am
TTN
-
EYW
13h 48m
1 stop
Multiple Airlines Logo
1:14 pm - 3:58 pm
EYW
-
TTN
26h 44m
1 stop
$442Multiple Airlines
Sat, Jun 27 - Tue, Jun 30
Multiple Airlines Logo
8:31 pm - 11:27 am
TTN
-
EYW
14h 56m
1 stop
Multiple Airlines Logo
2:14 pm - 3:12 pm
EYW
-
TTN
24h 58m
2 stops
$466Multiple Airlines
Sun, May 24 - Thu, May 28
Multiple Airlines Logo
8:33 pm - 11:27 am
TTN
-
EYW
14h 54m
1 stop
Multiple Airlines Logo
2:06 pm - 5:41 pm
EYW
-
TTN
27h 35m
2 stops
$532Multiple Airlines
Thu, Jun 18 - Sun, Jun 21
Multiple Airlines Logo
8:33 pm - 11:27 am
TTN
-
EYW
14h 54m
1 stop
Multiple Airlines Logo
12:05 pm - 9:57 am
EYW
-
TTN
21h 52m
1 stop
$553Multiple Airlines
Thu, Jun 18 - Sun, Jun 21
Multiple Airlines Logo
8:33 pm - 11:27 am
TTN
-
EYW
14h 54m
1 stop
Multiple Airlines Logo
12:05 pm - 9:57 am
EYW
-
TTN
21h 52m
1 stop
$564Multiple Airlines
Thu, Jun 25 - Sun, Jun 28
Multiple Airlines Logo
8:33 pm - 11:24 am
TTN
-
EYW
38h 51m
2 stops
Multiple Airlines Logo
12:07 pm - 9:57 am
EYW
-
TTN
21h 50m
1 stop
$592Multiple Airlines
Tue, Jun 9 - Mon, Jun 15

momondo Fare Finder

 
Customize your flight search to find flights from Trenton, New Jersey 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, momondo users made 832,500 searches. Data last updated May 11, 2026.
Use the filters below to find and compare flights from Trenton, New Jersey to Key West that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

TrentonKey West

TTN - EYW

TTNEYW

Trenton-Mercer

Sat 9/26

10:30 am-10:19 am

1 stop23h 49m

Key West

Wed 9/30

12:52 pm-10:23 am

1 stop21h 31m

$245

TrentonKey West

TTN - EYW

TTNEYW

Trenton-Mercer

Tue 6/9

4:43 pm-11:06 am

1 stop18h 23m

Key West

Mon 6/15

12:07 pm-9:57 am

1 stop21h 50m

$358
Quickest round-trip

TrentonKey West

TTN - EYW

TTNEYW

Trenton-Mercer

Sun 5/24

8:31 pm-11:27 am

1 stop14h 56m

Key West

Thu 5/28

12:05 pm-9:42 am

1 stop21h 37m

$378

TrentonKey West

TTN - EYW

TTNEYW

Trenton-Mercer

Sun 6/28

9:22 am-11:27 am

1 stop26h 05m

Key West

Fri 7/3

4:41 pm-11:38 am

1 stop18h 57m

$423

TrentonKey West

TTN - EYW

TTNEYW

Trenton-Mercer

Sat 6/27

9:37 pm-11:25 am

1 stop13h 48m

Key West

Tue 6/30

1:14 pm-3:58 pm

1 stop26h 44m

$442

TrentonKey West

TTN - EYW

TTNEYW

Trenton-Mercer

Sun 5/24

8:31 pm-11:27 am

1 stop14h 56m

Key West

Thu 5/28

2:14 pm-3:12 pm

2 stops24h 58m

$466

TrentonKey West

TTN - EYW

TTNEYW

Trenton-Mercer

Thu 6/18

8:33 pm-11:27 am

1 stop14h 54m

Key West

Sun 6/21

2:06 pm-5:41 pm

2 stops27h 35m

$532

TrentonKey West

TTN - EYW

TTNEYW

Trenton-Mercer

Thu 6/18

8:33 pm-11:27 am

1 stop14h 54m

Key West

Sun 6/21

12:05 pm-9:57 am

1 stop21h 52m

$553

TrentonKey West

TTN - EYW

TTNEYW

Trenton-Mercer

Thu 6/25

8:33 pm-11:27 am

1 stop14h 54m

Key West

Sun 6/28

12:05 pm-9:57 am

1 stop21h 52m

$564

TrentonKey West

TTN - EYW

TTNEYW

Trenton-Mercer

Tue 6/9

8:33 pm-11:24 am

2 stops38h 51m

Key West

Mon 6/15

12:07 pm-9:57 am

1 stop21h 50m

$592

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to Key West from

How to get the cheapest flight ticket from Trenton, New Jersey to Key West

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

What is the cheapest day to depart on your flight to Key West?

On average, the least expensive day to fly to Key West from Trenton, New Jersey is on a Tuesday. momondo users have found tickets for Tuesday departures for as low as $431. However, this price may fluctuate depending on the airline, the season, and holidays. When flying out on a Thursday, the most expensive travel day of the week, you can expect to see flight prices from Trenton, New Jersey to Key West for around $569.

What is the cheapest time of day to depart on your flight to Key West?

According to our data, the cheapest time of day to fly to Key West is in the morning. momondo users have found flights departing from Trenton, New Jersey to Key West in the morning for as low as $482. Keep in mind that these prices may fluctuate based on what airline you choose and the time of year you plan to travel. Flights to Key West are more costly at noon, with an average ticket price of $519. Departure times at noon fall within the peak daily travel times, which is why tickets can be more expensive.

When to book flights from Trenton, New Jersey to Key West

Are you open to changing your travel dates? Check out the ideal times to fly from Trenton, New Jersey to Key West according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Trenton, New Jersey to Key West (TTN to EYW) flight deals and tips

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

Fastest flight time

14h 54m

Direct flights

None
The fastest flight from Trenton, New Jersey to Key West takes 14h 54m
There are no direct flights from Trenton, New Jersey to Key West. There are no popular flight routes from Trenton, New Jersey to Key West.
Search flight deals

Frequently asked questions about flying from Trenton, New Jersey to Key West

  • How far is Trenton-Mercer to Key West by plane?

    The straight-line distance from Trenton-Mercer to Key West is 1155.9 mi. Typically, this will take 14h 54m by plane in normal conditions.

  • When did momondo last update prices for flights from Trenton-Mercer Airport to Key West Airport?

    Prices for flights from Trenton-Mercer Airport to Key West Airport are updated daily.

  • How old do you have to be to fly from Trenton-Mercer Airport to Key West Airport?

    The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Trenton-Mercer Airport to Key West Airport.

  • What documentation or ID do you need to fly to Key West Airport?

    The required travel and health documents for your Key West Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Key West Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

Traveling to a place near Key West?

Book flights to Key West if you plan to visit one of these locations
Big Pine Key
Little Torch Key

Why use momondo?

Why should I use momondo to find a flight deal from Trenton to Key West?

We help find the flight that best suits your needs, momondo compares prices from hundreds of airlines and travel agents and helps you filter them to find the best flight from Trenton to Key West for you.

Can I find flights from Trenton to Key West with flexible booking policies on momondo?

All flight searches from Trenton to Key West on momondo can be filtered to show those which offer flexible booking policies.

How can momondo help me find flights from Trenton to Key West?

Once all potential Trenton to Key West flight options are in front of you, momondo lets you sort and filter flights based on preferences such as airline, price and flight times amongst many other options.

I’m not ready to book a flight from Trenton to Key West right now. Can momondo alert me if prices change?

Yes momondo offers price alerts on flights to Key West 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.

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