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Cheap flights from Jacksonville to Key West from $146

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 Key West departing on 11/26. 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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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
Wed, Dec 3 - Wed, Dec 10
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
Tue, Dec 16 - Sat, Dec 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
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Thu, Dec 11 - Sun, Dec 14
American Airlines Logo
11:13 am - 4:37 pmJAX-EYW
5h 24m1 stop
American Airlines Logo
7:54 pm - 11:59 pmEYW-JAX
4h 05m1 stop
$317American Airlines
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Sat, Feb 21 - Mon, Feb 23
Multiple Airlines Logo
7:37 pm - 9:11 amJAX-EYW
13h 34m1 stop
Multiple Airlines Logo
7:47 am - 10:04 amEYW-JAX
26h 17m2 stops
$325Multiple Airlines
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Tue, Nov 25 - Sat, Nov 29
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
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Fri, Dec 5 - Fri, Dec 12
Multiple Airlines Logo
2:11 pm - 11:15 amJAX-EYW
21h 04m1 stop
Multiple Airlines Logo
1:06 pm - 5:08 pmEYW-JAX
28h 02m2 stops
$337Multiple Airlines
Find Deal
Thu, Jan 8 - Mon, Jan 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
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Sun, May 3 - Sun, May 10
Delta Logo
3:56 pm - 7:42 pmJAX-EYW
3h 46m1 stop
Delta Logo
6:07 pm - 10:58 pmEYW-JAX
4h 51m1 stop
$353Delta
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Thu, Feb 19 - Sun, Feb 22
Breeze Airways Logo
11:37 am - 10:24 amJAX-EYW
22h 47m2 stops
Breeze Airways Logo
11:04 am - 5:08 pmEYW-JAX
30h 04m2 stops
$561Breeze Airways
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Thu, Jan 8 - Mon, Jan 12

Allegiant Air flights from Jacksonville to Key West

Our best Allegiant Air deals on Jacksonville to Key West flight tickets
Allegiant Air
Dec 11
JAX9:21 pmJacksonville
16h 18m
1 stop
EYW1:39 pmKey West
Dec 14
EYW10:27 pmKey West
21h 04m
2 stops
JAX7:31 pmJacksonville
$314
Find similar
Allegiant Air
Nov 14
JAX8:34 amJacksonville
8h 21m
1 stop
EYW4:55 pmKey West
Nov 23
EYW10:26 pmKey West
36h 17m
2 stops
JAX10:43 amJacksonville
$318
Find similar
Allegiant Air
May 3
JAX8:34 pmJacksonville
13h 37m
1 stop
EYW10:11 amKey West
May 10
EYW12:34 pmKey West
21h 27m
1 stop
JAX10:01 amJacksonville
$349
Find similar

American Airlines flights from Jacksonville to Key West

Our best American Airlines deals on Jacksonville to Key West flight tickets
American Airlines
Dec 3
JAX6:14 pmJacksonville
4h 53m
1 stop
EYW11:07 pmKey West
Dec 10
EYW12:00 pmKey West
5h 12m
1 stop
JAX5:12 pmJacksonville
$251
Find similar
American Airlines
Dec 16
JAX7:41 pmJacksonville
3h 26m
1 stop
EYW11:07 pmKey West
Dec 20
EYW1:56 pmKey West
5h 57m
1 stop
JAX7:53 pmJacksonville
$289
Find similar
American Airlines
Feb 21
JAX11:13 amJacksonville
5h 24m
1 stop
EYW4:37 pmKey West
Feb 23
EYW7:54 pmKey West
4h 05m
1 stop
JAX11:59 pmJacksonville
$317
Find similar

momondo Fare Finder

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

Fly from

Fly to

Route

Depart

Return

Price

JacksonvilleKey West

JAX - EYW

JAXEYW

Jacksonville

Wed 12/3

6:14 pm-11:07 pm

1 stop4h 53m

Key West

Wed 12/10

12:00 pm-5:12 pm

1 stop5h 12m

$251

JacksonvilleKey West

JAX - EYW

JAXEYW

Jacksonville

Tue 12/16

7:41 pm-11:07 pm

1 stop3h 26m

Key West

Sat 12/20

1:56 pm-7:53 pm

1 stop5h 57m

$289

JacksonvilleKey West

JAX - EYW

JAXEYW

Jacksonville

Thu 12/11

9:21 pm-1:39 pm

1 stop16h 18m

Key West

Sun 12/14

10:27 pm-7:31 pm

2 stops21h 04m

$314

JacksonvilleKey West

JAX - EYW

JAXEYW

Jacksonville

Sat 2/21

11:13 am-4:37 pm

1 stop5h 24m

Key West

Mon 2/23

7:54 pm-11:59 pm

1 stop4h 05m

$317

JacksonvilleKey West

JAX - EYW

JAXEYW

Jacksonville

Tue 11/25

7:37 pm-9:11 am

1 stop13h 34m

Key West

Sat 11/29

7:47 am-10:04 am

2 stops26h 17m

$325

JacksonvilleKey West

JAX - EYW

JAXEYW

Jacksonville

Fri 12/5

4:08 pm-8:06 pm

1 stop3h 58m

Key West

Fri 12/12

12:38 pm-7:03 pm

1 stop6h 25m

$327

JacksonvilleKey West

JAX - EYW

JAXEYW

Jacksonville

Thu 1/8

2:11 pm-11:15 am

1 stop21h 04m

Key West

Mon 1/12

1:06 pm-5:08 pm

2 stops28h 02m

$337

JacksonvilleKey West

JAX - EYW

JAXEYW

Jacksonville

Sun 5/3

8:34 pm-10:11 am

1 stop13h 37m

Key West

Sun 5/10

12:34 pm-10:01 am

1 stop21h 27m

$349

JacksonvilleKey West

JAX - EYW

JAXEYW

Jacksonville

Thu 2/19

3:56 pm-7:42 pm

1 stop3h 46m

Key West

Sun 2/22

6:07 pm-10:58 pm

1 stop4h 51m

$353

JacksonvilleKey West

JAX - EYW

JAXEYW

Jacksonville

Thu 1/8

11:37 am-10:24 am

2 stops22h 47m

Key West

Mon 1/12

11:04 am-5:08 pm

2 stops30h 04m

$561

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 Jacksonville 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 month to fly to Key West?

In general, September is the cheapest month to fly from Jacksonville to Key West. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $341. If you are unable to visit Key West during the month of September, then departing from Jacksonville during the month August is also very affordable. Most momondo users find prices during this month for around $460.

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 Jacksonville is on a Tuesday. momondo users have found tickets for Tuesday departures for as low as $462. However, this price may fluctuate depending on the airline, the season, and holidays. When flying out on a Sunday, the most expensive travel day of the week, you can expect to see flight prices from Jacksonville to Key West for around $543.

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 Jacksonville to Key West in the morning for as low as $499. 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 in the afternoon, with an average ticket price of $513. Departure times in the afternoon fall within the peak daily travel times, which is why tickets can be more expensive.

How far in advance should I book a flight to Key West?

You are more likely to see cheaper flights to Key West from Jacksonville when booking weeks ahead of your departure date. In general, you can expect to find flights to Key West for around $488 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Key West from Jacksonville for as low as $316 on momondo.

How have Jacksonville to Key West flight prices changed over time?

As of November 2025, prices for Jacksonville to Key West flights are approximately 79% more expensive when compared to flights at the same time last year.

When to book flights from Jacksonville to Key West

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

Cheap Jacksonville to Key West (JAX to EYW) flight deals and tips

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

Direct flights

None
There are no direct flights from Jacksonville to Key West. There are no popular flight routes from Jacksonville to Key West.
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  • How far is Jacksonville to Key West by plane?

    The straight-line distance from Jacksonville to Key West is 399.0 mi. By plane, this route typically takes 2h 48m.

  • When did momondo last update prices for flights from Jacksonville Airport to Key West Airport?

    Prices for flights from Jacksonville Airport to Key West Airport are refreshed on a daily basis.

  • How many operators does momondo search for flights from Jacksonville Airport to Key West Airport?

  • How old do you have to be to fly from Jacksonville Airport to Key West Airport?

    The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Jacksonville Airport to Key West Airport.

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

    The travel and health documents required for your trip to Key West Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Key West Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

  • What is the most popular airline from Jacksonville to Key West?

Best airlines flying from Jacksonville to Key West

Compare and see reviews for airlines that fly from Jacksonville to Key West 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

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 Jacksonville 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 Jacksonville to Key West for you.

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

Yes. All flights to Key West from Jacksonville on momondo can be compared and filtered by various policies on offer, including flexible booking.

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

Once you have performed a search for Jacksonville to Key West flights, momondo helps you find the right one by offering useful filters to narrow down your flight selection. Flights can be filtered by multiple factors such as airline, airport and price; but also by other criteria like aircraft type and payment method.

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

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

An easier way to manage your Key West trip

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