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Cheap flights from Jacksonville to Florida Keys from $64

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 1/24. 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 Jacksonville to Florida Keys

Cheap round-trip flights

Enter your travel dates to find the best prices.
Frontier Logo
5:28 pm - 12:47 am
JAX
-
MIA
7h 19m1 stop
Frontier Logo
5:30 am - 4:23 pm
MIA
-
JAX
10h 53m1 stop
$128Frontier
Sat, Jan 24 - Sat, Jan 31
Multiple Airlines Logo
9:04 pm - 11:11 pm
JAX
-
MIA
26h 07m1 stop
Multiple Airlines Logo
7:00 am - 6:13 pm
MIA
-
JAX
11h 13m1 stop
$138Multiple Airlines
Thu, Feb 5 - Mon, Feb 9
Frontier Logo
9:18 pm - 7:30 pm
JAX
-
MIA
22h 12m1 stop
Frontier Logo
10:39 am - 8:01 pm
MIA
-
JAX
9h 22m1 stop
$139Frontier
Fri, Jan 23 - Mon, Jan 26
Multiple Airlines Logo
9:04 pm - 12:56 pm
JAX
-
MIA
15h 52m1 stop
Multiple Airlines Logo
7:00 am - 6:23 pm
MIA
-
JAX
11h 23m1 stop
$143Multiple Airlines
Thu, Jan 29 - Mon, Feb 2
Frontier Logo
8:17 pm - 12:42 am
JAX
-
MIA
4h 25m1 stop
Frontier Logo
5:30 am - 4:23 pm
MIA
-
JAX
10h 53m1 stop
$145Frontier
Sat, Jan 17 - Sat, Jan 24
Multiple Airlines Logo
7:18 pm - 11:56 am
JAX
-
MIA
16h 38m1 stop
Multiple Airlines Logo
7:00 am - 6:13 pm
MIA
-
JAX
11h 13m1 stop
$146Multiple Airlines
Fri, Feb 6 - Mon, Feb 9
American Airlines Logo
6:00 am - 11:05 am
JAX
-
EYW
5h 05m1 stop
American Airlines Logo
12:00 pm - 4:07 pm
EYW
-
JAX
4h 07m1 stop
$251American Airlines
Sat, Jan 24 - Sat, Jan 31
Delta Logo
11:20 am - 5:28 pm
JAX
-
EYW
6h 08m1 stop
Delta Logo
7:35 am - 12:09 pm
EYW
-
JAX
4h 34m1 stop
$317Delta
Sat, May 2 - Wed, May 6
American Airlines Logo
7:32 pm - 11:56 pm
JAX
-
EYW
4h 24m1 stop
American Airlines Logo
12:00 pm - 5:10 pm
EYW
-
JAX
5h 10m1 stop
$327American Airlines
Fri, Jan 30 - Mon, Feb 2
Delta Logo
3:28 pm - 7:40 pm
JAX
-
EYW
4h 12m1 stop
Delta Logo
6:06 pm - 11:58 pm
EYW
-
JAX
5h 52m1 stop
$329Delta
Sat, Jan 10 - Wed, Jan 14

Frontier flights from Jacksonville to Florida Keys

Our best Frontier deals on Jacksonville to Florida Keys flight tickets
Frontier
Jan 24
JAX5:28 pmJacksonville
7h 19m
1 stop
MIA12:47 amMiami
Jan 31
MIA5:30 amMiami
10h 53m
1 stop
JAX4:23 pmJacksonville
$128
Find similar
Frontier
Jan 23
JAX9:18 pmJacksonville
22h 12m
1 stop
MIA7:30 pmMiami
Jan 26
MIA10:39 amMiami
9h 22m
1 stop
JAX8:01 pmJacksonville
$139
Find similar
Frontier
Jan 17
JAX8:17 pmJacksonville
4h 25m
1 stop
MIA12:42 amMiami
Jan 24
MIA5:30 amMiami
10h 53m
1 stop
JAX4:23 pmJacksonville
$145
Find similar

United Airlines flights from Jacksonville to Florida Keys

Our best United Airlines deals on Jacksonville to Florida Keys flight tickets
United Airlines
Jan 27
JAX1:45 pmJacksonville
23h 18m
2 stops
EYW1:03 pmKey West
Jan 30
EYW6:05 pmKey West
26h 05m
1 stop
JAX8:10 pmJacksonville
$580
Find similar
United Airlines
Jan 1
JAX9:20 amJacksonville
10h 51m
1 stop
MIA8:11 pmMiami
Jan 7
MIA4:54 pmMiami
27h 16m
2 stops
JAX8:10 pmJacksonville
$611
Find similar
United Airlines
Jan 1
JAX9:20 amJacksonville
10h 51m
1 stop
MIA8:11 pmMiami
Jan 7
MIA1:45 pmMiami
25h 57m
2 stops
JAX3:42 pmJacksonville
$623
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 December 27, 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

Sat 1/24

5:28 pm-12:47 am

1 stop7h 19m

Miami

Sat 1/31

5:30 am-4:23 pm

1 stop10h 53m

$128

JacksonvilleMiami

JAX - MIA

JAXMIA

Jacksonville

Thu 2/5

9:04 pm-11:11 pm

1 stop26h 07m

Miami

Mon 2/9

7:00 am-6:13 pm

1 stop11h 13m

$138

JacksonvilleMiami

JAX - MIA

JAXMIA

Jacksonville

Fri 1/23

9:18 pm-7:30 pm

1 stop22h 12m

Miami

Mon 1/26

10:39 am-8:01 pm

1 stop9h 22m

$139

JacksonvilleMiami

JAX - MIA

JAXMIA

Jacksonville

Thu 1/29

9:04 pm-12:56 pm

1 stop15h 52m

Miami

Mon 2/2

7:00 am-6:23 pm

1 stop11h 23m

$143

JacksonvilleMiami

JAX - MIA

JAXMIA

Jacksonville

Sat 1/17

8:17 pm-12:42 am

1 stop4h 25m

Miami

Sat 1/24

5:30 am-4:23 pm

1 stop10h 53m

$145

JacksonvilleMiami

JAX - MIA

JAXMIA

Jacksonville

Fri 2/6

7:18 pm-11:56 am

1 stop16h 38m

Miami

Mon 2/9

7:00 am-6:13 pm

1 stop11h 13m

$146

JacksonvilleKey West

JAX - EYW

JAXEYW

Jacksonville

Sat 1/24

6:00 am-11:05 am

1 stop5h 05m

Key West

Sat 1/31

12:00 pm-4:07 pm

1 stop4h 07m

$251

JacksonvilleKey West

JAX - EYW

JAXEYW

Jacksonville

Sat 5/2

11:20 am-5:28 pm

1 stop6h 08m

Key West

Wed 5/6

7:35 am-12:09 pm

1 stop4h 34m

$317

JacksonvilleKey West

JAX - EYW

JAXEYW

Jacksonville

Fri 1/30

7:32 pm-11:56 pm

1 stop4h 24m

Key West

Mon 2/2

12:00 pm-5:10 pm

1 stop5h 10m

$327

JacksonvilleKey West

JAX - EYW

JAXEYW

Jacksonville

Sat 1/10

3:28 pm-7:40 pm

1 stop4h 12m

Key West

Wed 1/14

6:06 pm-11:58 pm

1 stop5h 52m

$329

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 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 $706.

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 $587. 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 $1,043.

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 $435 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 $246 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 21m

Direct flights

Every day

Airports in Florida Keys

3 airports
The fastest flight from Jacksonville to Florida Keys takes 1h 21m
Direct flights go from Jacksonville to Florida Keys every day.
There are 3 airports in Florida Keys. From Jacksonville there are direct flights to 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 $286Free CancellationRating
7.2
11,068 reviews
Search American Airlines flights
DeltaPriceFrom $326Free CancellationRating
7.9
8,018 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.

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Find better results for your trip to Florida Keys

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Popular flights according to clicks in the last 7 days on momondo
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