Latest deals
Insights
FAQs
Reviews
Price Alerts

Cheap flights from Jacksonville to Florida Keys from $55

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Jacksonville to Florida Keys departing on 12/4. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
0 bags

Discover deals from 900+ travel sites with momondo.

Save money when you book flights with momondo

Big names and deals

Big names and deals

Search 100s of travel sites to compare prices.

Filter for what you want

Filter for what you want

Free Wi-Fi? Stopover? Instantly customize your results.

Trusted and free

Trusted and free

We’re completely free to use - no hidden charges or fees.

Price Alerts

Price Alerts

Not ready to book? to track prices.
Search flight deals

Find the cheapest flights from Jacksonville to Florida Keys

Cheap round-trip flights

Enter your travel dates to find the best prices.
Frontier Logo
6:56 pm - 12:46 amJAX-MIA
5h 50m1 stop
Frontier Logo
7:59 am - 8:21 pmMIA-JAX
12h 22m1 stop
$110Frontier
Find Deal
seg, jan 12 - qui, jan 29
Frontier Logo
5:23 pm - 12:51 amJAX-MIA
7h 28m1 stop
Frontier Logo
7:09 pm - 7:31 pmMIA-JAX
24h 22m1 stop
$146Frontier
Find Deal
seg, jan 5 - qui, jan 8
Multiple Airlines Logo
6:36 pm - 11:12 amJAX-MIA
16h 36m1 stop
Multiple Airlines Logo
7:09 pm - 5:40 pmMIA-JAX
22h 31m1 stop
$158Multiple Airlines
Find Deal
sex, dez 5 - qui, dez 11
Multiple Airlines Logo
10:59 am - 10:49 amJAX-MIA
23h 50m1 stop
Multiple Airlines Logo
5:13 pm - 12:31 pmMIA-JAX
19h 18m1 stop
$178Multiple Airlines
Find Deal
qua, nov 26 - qua, dez 3
American Airlines Logo
6:14 pm - 11:07 pmJAX-EYW
4h 53m1 stop
American Airlines Logo
12:00 pm - 5:12 pmEYW-JAX
5h 12m1 stop
$251American Airlines
Find Deal
qua, dez 3 - qua, dez 10
Delta Logo
6:00 am - 6:50 pmJAX-MIA
12h 50m1 stop
Delta Logo
11:30 am - 10:40 pmMIA-JAX
11h 10m1 stop
$253Delta
Find Deal
qua, dez 3 - sáb, dez 6
American Airlines Logo
7:41 pm - 11:07 pmJAX-EYW
3h 26m1 stop
American Airlines Logo
1:56 pm - 7:53 pmEYW-JAX
5h 57m1 stop
$289American Airlines
Find Deal
ter, dez 16 - sáb, dez 20
Allegiant Air Logo
9:21 pm - 1:39 pmJAX-EYW
16h 18m1 stop
Allegiant Air Logo
10:27 pm - 7:31 pmEYW-JAX
21h 04m2 stops
$314Allegiant Air
Find Deal
qui, dez 11 - dom, dez 14
Delta Logo
4:08 pm - 8:06 pmJAX-EYW
3h 58m1 stop
Delta Logo
12:38 pm - 7:03 pmEYW-JAX
6h 25m1 stop
$327Delta
Find Deal
sex, dez 5 - sex, dez 12
Allegiant Air Logo
8:34 pm - 10:11 amJAX-EYW
13h 37m1 stop
Allegiant Air Logo
12:34 pm - 10:01 amEYW-JAX
21h 27m1 stop
$349Allegiant Air
Find Deal
dom, mai 3 - dom, mai 10

Frontier flights from Jacksonville to Florida Keys

Our best Frontier deals on Jacksonville to Florida Keys flight tickets
Frontier
Jan 12
JAX6:56 pmJacksonville
5h 50m
1 stop
MIA12:46 amMiami
Jan 29
MIA7:59 amMiami
12h 22m
1 stop
JAX8:21 pmJacksonville
$110
Find similar
Frontier
Jan 5
JAX5:23 pmJacksonville
7h 28m
1 stop
MIA12:51 amMiami
Jan 8
MIA7:09 pmMiami
24h 22m
1 stop
JAX7:31 pmJacksonville
$146
Find similar
Frontier
Dec 8
JAX6:36 pmJacksonville
6h 10m
1 stop
MIA12:46 amMiami
Dec 15
MIA5:30 amMiami
12h 06m
1 stop
JAX5:36 pmJacksonville
$149
Find similar

Delta flights from Jacksonville to Florida Keys

Our best Delta deals on Jacksonville to Florida Keys flight tickets
Delta
Dec 3
JAX6:00 amJacksonville
12h 50m
1 stop
MIA6:50 pmMiami
Dec 6
MIA11:30 amMiami
11h 10m
1 stop
JAX10:40 pmJacksonville
$253
Find similar
Delta
Dec 5
JAX4:08 pmJacksonville
3h 58m
1 stop
EYW8:06 pmKey West
Dec 12
EYW12:38 pmKey West
6h 25m
1 stop
JAX7:03 pmJacksonville
$327
Find similar
Delta
Nov 11
JAX5:00 amJacksonville
12h 14m
2 stops
MIA5:14 pmMiami
Nov 18
MIA7:15 amMiami
15h 11m
1 stop
JAX10:26 pmJacksonville
$345
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from Jacksonville to Florida Keys 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 novembro 6, 2025.
Use the filters below to find and compare flights from Jacksonville to Florida Keys that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

JacksonvilleMiami

JAX - MIA

JAXMIA

Jacksonville

seg 1/12

6:56 pm-12:46 am

1 stop5h 50m

Miami

qui 1/29

7:59 am-8:21 pm

1 stop12h 22m

$110

JacksonvilleMiami

JAX - MIA

JAXMIA

Jacksonville

seg 1/5

5:23 pm-12:51 am

1 stop7h 28m

Miami

qui 1/8

7:09 pm-7:31 pm

1 stop24h 22m

$146

JacksonvilleMiami

JAX - MIA

JAXMIA

Jacksonville

sex 12/5

6:36 pm-11:12 am

1 stop16h 36m

Miami

qui 12/11

7:09 pm-5:40 pm

1 stop22h 31m

$158

JacksonvilleMiami

JAX - MIA

JAXMIA

Jacksonville

qua 11/26

10:59 am-10:49 am

1 stop23h 50m

Miami

qua 12/3

5:13 pm-12:31 pm

1 stop19h 18m

$178

JacksonvilleKey West

JAX - EYW

JAXEYW

Jacksonville

qua 12/3

6:14 pm-11:07 pm

1 stop4h 53m

Key West

qua 12/10

12:00 pm-5:12 pm

1 stop5h 12m

$251

JacksonvilleMiami

JAX - MIA

JAXMIA

Jacksonville

qua 12/3

6:00 am-6:50 pm

1 stop12h 50m

Miami

sáb 12/6

11:30 am-10:40 pm

1 stop11h 10m

$253

JacksonvilleKey West

JAX - EYW

JAXEYW

Jacksonville

ter 12/16

7:41 pm-11:07 pm

1 stop3h 26m

Key West

sáb 12/20

1:56 pm-7:53 pm

1 stop5h 57m

$289

JacksonvilleKey West

JAX - EYW

JAXEYW

Jacksonville

qui 12/11

9:21 pm-1:39 pm

1 stop16h 18m

Key West

dom 12/14

10:27 pm-7:31 pm

2 stops21h 04m

$314

JacksonvilleKey West

JAX - EYW

JAXEYW

Jacksonville

sex 12/5

4:08 pm-8:06 pm

1 stop3h 58m

Key West

sex 12/12

12:38 pm-7:03 pm

1 stop6h 25m

$327

JacksonvilleKey West

JAX - EYW

JAXEYW

Jacksonville

dom 5/3

8:34 pm-10:11 am

1 stop13h 37m

Key West

dom 5/10

12:34 pm-10:01 am

1 stop21h 27m

$349

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
1
2

See travel insights to Florida Keys from

How to get the cheapest flight ticket from Jacksonville 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

What is the cheapest month to fly to Florida Keys?

The month of August is another great option to travel to Florida Keys, with average flight prices from Jacksonville averaging around $296.

What is the cheapest day to depart on your flight to Florida Keys?

The cheapest day to depart from Jacksonville to Florida Keys is on a Sunday when prices can be found for as low as $623. The most expensive day to fly to Florida Keys is Thursday, with ticket prices averaging around $705.

What is the cheapest time of day to depart on your flight to Florida Keys?

According to our data, the cheapest time of day to fly to Florida Keys is in the morning. momondo users have found flights departing from Jacksonville to Florida Keys in the morning for as low as $589. Keep in mind that these prices may fluctuate based on what airline you choose and the time of year you plan to travel. Flights in the afternoon are often more expensive with an average ticket price of $1,078.

How far in advance should I book a flight to Florida Keys?

You are more likely to see cheaper flights to Florida Keys from Jacksonville when booking weeks ahead of your departure date. In general, you can expect to find flights to Florida Keys for around $431 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Florida Keys from Jacksonville for as low as $264 on momondo.

Can stopping save me money on Jacksonville to Florida Keys flights?

No. A direct flight is the cheapest option for a flight between Jacksonville to Florida Keys.

Cheap Jacksonville to Florida Keys flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Jacksonville to Florida Keys

Fastest flight time

1h 17m

Direct flights

Every day

Airports in Florida Keys

1 airport
The fastest flight from Jacksonville to Florida Keys takes 1h 17m
Direct flights go from Jacksonville to Florida Keys every day.
There is 1 airport near Florida Keys: Miami (MIA)
Search flight deals

  • When did momondo last update prices for flights from Jacksonville Airport to Florida Keys?

    Prices for flights from Jacksonville Airport to Florida Keys are refreshed on a daily basis.

  • How many operators does momondo search for flights from Jacksonville Airport to Florida Keys?

  • How old do you have to be to fly from Jacksonville Airport to Florida Keys?

    The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Jacksonville Airport to Florida Keys.

  • What documentation or ID do you need to fly to Florida Keys?

    The travel and health documents you'll need for your trip to Florida Keys may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Florida Keys. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

  • What is the most popular plane model from Jacksonville to Florida Keys?

Best airlines flying from Jacksonville to Florida Keys

Compare and see reviews for airlines that fly from Jacksonville to Florida Keys with momondo
Airline
Rating
Free Cancellation
Price
American AirlinesPriceFrom $289Free CancellationRating
7.2
11,040 reviews
Search American Airlines flights
DeltaPriceFrom $326Free CancellationRating
7.9
8,001 reviews
Search Delta flights

Why use momondo?

Why should I use momondo to find a flight deal from Jacksonville to Florida Keys?

It is quick and easy to find Jacksonville to Florida Keys flights on momondo. We search and return numerous flight options from various airlines and agents. You can then use our filters to narrow your search until you have found the most convenient flight to Florida Keys that suits you.

Can I find flights from Jacksonville to Florida Keys with flexible booking policies on momondo?

momondo does allow users to show only those flights to Florida Keys from Jacksonville which offer a flexible booking policy as well as other useful filters and features.

How can momondo help me find flights from Jacksonville to Florida Keys?

momondo provides multiple filters to help you find the best flight to Florida Keys from Jacksonville. Filter by price, airline, airports, cabin, aircraft, payment method, number of stops and more.

I’m not ready to book a flight from Jacksonville to Florida Keys right now. Can momondo alert me if prices change?

If you are not ready to book a flight from Jacksonville to Florida Keys now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to Florida Keys and let you know when they change.

An easier way to manage your Florida Keys trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.
Start using Trips
Find my bookings

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.
1 adult
sáb 12/6
sáb 12/13
By creating a price alert you accept our terms of use and privacy policy.

Find better results for your trip to Florida Keys

Popular cities in Florida Keys

Popular flights according to clicks in the last 7 days on momondo
Flights to New Yorkfrom $44
Flights to Los Angelesfrom $49
Flights to Miamifrom $49
Flights to Chicagofrom $54
Flights to Orlandofrom $49
Flights to Las Vegasfrom $42
Flights to San Franciscofrom $57
Flights to Washington, D.C.from $49
Flights to Bostonfrom $49
Flights to Atlantafrom $40
Flights to Dallasfrom $59
Flights to Seattlefrom $58