What is the cheapest airline that flies from Key West to Caribbean Islands?

American Airlines, United Airlines, and Spirit Airlines are the most popular carriers operating from Key West to Caribbean Islands

When did momondo last update prices for flights from Key West Airport to Caribbean Islands?

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

How many operators does momondo search for flights from Key West Airport to Caribbean Islands?

There is 1 operator available for flights from Key West Airport to Caribbean Islands as of July 2025.

How old do you have to be to fly from Key West Airport to Caribbean Islands?

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 Key West Airport to Caribbean Islands.

What documentation or ID do you need to fly to Caribbean Islands?

The necessary travel and health documents for your Caribbean Islands trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

$233 Cheap Flights from Key West to Caribbean Islands in 2025

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Find the cheapest flights from Key West to Caribbean Islands

Round-trip

One-way

Last minute

Cheap round-trip flights

11:25 am - 6:14 pmEYW-SJU

6h 49m1 stop

7:05 pm - 2:43 pmSJU-EYW

19h 38m2 stops

$365American Airlines

Find Deal

Wed, Oct 1 - Mon, Oct 6

7:57 pm - 12:00 pmEYW-SJU

15h 03m1 stop

12:40 pm - 6:35 pmSJU-EYW

6h 55m1 stop

$405American Airlines

Find Deal

Mon, Jan 12 - Wed, Jan 14

11:25 am - 11:10 amEYW-NAS

23h 45m1 stop

10:26 am - 1:29 pmNAS-EYW

3h 03m1 stop

$505American Airlines

Find Deal

Sat, Sep 13 - Sat, Sep 20

1:52 pm - 6:15 pmEYW-SJU

4h 23m1 stop

6:00 am - 10:53 amSJU-EYW

4h 53m1 stop

$525American Airlines

Find Deal

Wed, Aug 13 - Sun, Aug 17

4:49 pm - 11:09 amEYW-SJU

18h 20m2 stops

5:15 pm - 12:32 pmSJU-EYW

19h 17m2 stops

$535American Airlines

Find Deal

Thu, Aug 14 - Mon, Aug 18

1:59 pm - 5:58 pmEYW-NAS

3h 59m1 stop

10:26 am - 6:59 pmNAS-EYW

8h 33m1 stop

$535American Airlines

Find Deal

Thu, Sep 4 - Mon, Sep 8

10:02 am - 4:42 pmEYW-SJU

30h 40m3 stops

2:11 am - 1:07 pmSJU-EYW

10h 56m1 stop

$559

Find Deal

Wed, Aug 13 - Sat, Aug 16

12:23 pm - 10:22 pmEYW-SJU

8h 59m1 stop

5:50 pm - 4:01 pmSJU-EYW

23h 11m2 stops

$746United Airlines

Find Deal

Mon, Jan 12 - Wed, Jan 14

4:05 pm - 2:40 pmEYW-SJU

21h 35m3 stops

3:46 pm - 4:01 pmSJU-EYW

25h 15m1 stop

$924United Airlines

Find Deal

Mon, Jan 12 - Wed, Jan 14

12:23 pm - 10:22 pmEYW-SJU

8h 59m1 stop

2:05 am - 3:06 pmSJU-EYW

14h 01m2 stops

$985United Airlines

Find Deal

Mon, Jan 12 - Tue, Jan 13

American Airlines flights from Key West to Caribbean Islands

Our best American Airlines deals on Key West to Caribbean Islands flight tickets

American Airlines

Oct 1

EYW11:25 amKey West

6h 49m

1 stop

SJU6:14 pmSan Juan Luis Munoz Marin Intl

Oct 6

SJU7:05 pmSan Juan Luis Munoz Marin Intl

19h 38m

2 stops

EYW2:43 pmKey West

$365

Find similar

American Airlines

Jan 12

EYW7:57 pmKey West

15h 03m

1 stop

SJU12:00 pmSan Juan Luis Munoz Marin Intl

Jan 14

SJU12:40 pmSan Juan Luis Munoz Marin Intl

6h 55m

1 stop

EYW6:35 pmKey West

$405

Find similar

American Airlines

Sep 13

EYW11:25 amKey West

23h 45m

1 stop

NAS11:10 amNassau Intl

Sep 20

NAS10:26 amNassau Intl

3h 03m

1 stop

EYW1:29 pmKey West

$505

Find similar

United Airlines flights from Key West to Caribbean Islands

Our best United Airlines deals on Key West to Caribbean Islands flight tickets

United Airlines

Jan 12

EYW12:23 pmKey West

8h 59m

1 stop

SJU10:22 pmSan Juan Luis Munoz Marin Intl

Jan 14

SJU5:50 pmSan Juan Luis Munoz Marin Intl

23h 11m

2 stops

EYW4:01 pmKey West

$746

Find similar

United Airlines

Jan 12

EYW4:05 pmKey West

21h 35m

3 stops

SJU2:40 pmSan Juan Luis Munoz Marin Intl

Jan 14

SJU3:46 pmSan Juan Luis Munoz Marin Intl

25h 15m

1 stop

EYW4:01 pmKey West

$924

Find similar

United Airlines

Jan 12

EYW12:23 pmKey West

8h 59m

1 stop

SJU10:22 pmSan Juan Luis Munoz Marin Intl

Jan 13

SJU2:05 amSan Juan Luis Munoz Marin Intl

14h 01m

2 stops

EYW3:06 pmKey West

$985

Find similar

momondo Fare Finder

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

Fly from

Fly to

Route

Depart

Return

Price

Key WestSan Juan

EYW - SJU

EYWSJU

Key West

Wed 10/1

11:25 am-6:14 pm

1 stop6h 49m

San Juan Luis Munoz Marin Intl

Mon 10/6

7:05 pm-2:43 pm

2 stops19h 38m

$365

Key WestSan Juan

EYW - SJU

EYWSJU

Key West

Mon 1/12

7:57 pm-12:00 pm

1 stop15h 03m

San Juan Luis Munoz Marin Intl

Wed 1/14

12:40 pm-6:35 pm

1 stop6h 55m

$405

Key WestNassau

EYW - NAS

EYWNAS

Key West

Sat 9/13

11:25 am-11:10 am

1 stop23h 45m

Nassau Intl

Sat 9/20

10:26 am-1:29 pm

1 stop3h 03m

$505

Key WestSan Juan

EYW - SJU

EYWSJU

Key West

Wed 8/13

1:52 pm-6:15 pm

1 stop4h 23m

San Juan Luis Munoz Marin Intl

Sun 8/17

6:00 am-10:53 am

1 stop4h 53m

$525

Key WestSan Juan

EYW - SJU

EYWSJU

Key West

Thu 8/14

4:49 pm-11:09 am

2 stops18h 20m

San Juan Luis Munoz Marin Intl

Mon 8/18

5:15 pm-12:32 pm

2 stops19h 17m

$535

Key WestNassau

EYW - NAS

EYWNAS

Key West

Thu 9/4

1:59 pm-5:58 pm

1 stop3h 59m

Nassau Intl

Mon 9/8

10:26 am-6:59 pm

1 stop8h 33m

$535

Key WestSan Juan

EYW - SJU

EYWSJU

Key West

Wed 8/13

10:02 am-4:42 pm

3 stops30h 40m

San Juan Luis Munoz Marin Intl

Sat 8/16

2:11 am-1:07 pm

1 stop10h 56m

$559

Key WestSan Juan

EYW - SJU

EYWSJU

Key West

Mon 1/12

12:23 pm-10:22 pm

1 stop8h 59m

San Juan Luis Munoz Marin Intl

Wed 1/14

5:50 pm-4:01 pm

2 stops23h 11m

$746

Key WestSan Juan

EYW - SJU

EYWSJU

Key West

Mon 1/12

4:05 pm-2:40 pm

3 stops21h 35m

San Juan Luis Munoz Marin Intl

Wed 1/14

3:46 pm-4:01 pm

1 stop25h 15m

$924

Key WestSan Juan

EYW - SJU

EYWSJU

Key West

Mon 1/12

12:23 pm-10:22 pm

1 stop8h 59m

San Juan Luis Munoz Marin Intl

Tue 1/13

2:05 am-3:06 pm

2 stops14h 01m

$985

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

How to get the cheapest flight ticket from Key West to Caribbean Islands

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

Prices

Airlines

What is the cheapest time of day to depart on your flight to Caribbean Islands?

According to our data, the cheapest time of day to fly to Caribbean Islands is in the morning. momondo users have found flights departing from Key West to Caribbean Islands in the morning for as low as $404. Keep in mind that these prices may fluctuate based on what airline you choose and the time of year you plan to travel. Try not to purchase tickets in the afternoon because they tend to be around $448. Of course, these prices can vary depending on the time of year and what airport you fly to.

Can stopping save me money on Key West to Caribbean Islands flights?

No. A direct flight is the cheapest option for a flight between Key West to Caribbean Islands.

Cheap Key West to Caribbean Islands flight deals and tips

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

Best Price Found	$233
Fastest flight time	3h 59m
Direct flights	None
Airports in Caribbean Islands	4 airports

The best one-way flight to Caribbean Islands from Key West in the past 72 hours is $233. The best round-trip flight deal from Key West to Caribbean Islands found on momondo in the last 72 hours is $365.

The fastest flight from Key West to Caribbean Islands takes 3h 59m

There are no direct flights from Key West to Caribbean Islands. Popular non-direct routes for this connection are Key West Airport - Marsh Harbour Airport, Key West Airport - Nassau Intl Airport and Key West Airport - San Juan Luis Munoz Marin Intl Airport.

There are 4 airports near Caribbean Islands: Nassau Intl (NAS), Marsh Harbour (MHH), Road Town Beef Island (EIS), San Juan Luis Munoz Marin Intl (SJU)

Search flight deals

When did momondo last update prices for flights from Key West Airport to Caribbean Islands?
Prices for flights from Key West Airport to Caribbean Islands are refreshed on a daily basis.
How many operators does momondo search for flights from Key West Airport to Caribbean Islands?
There is 1 operator available for flights from Key West Airport to Caribbean Islands as of July 2025.
How old do you have to be to fly from Key West Airport to Caribbean Islands?
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 Key West Airport to Caribbean Islands.
What documentation or ID do you need to fly to Caribbean Islands?
The necessary travel and health documents for your Caribbean Islands trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.
What is the most popular plane model from Key West to Caribbean Islands?
momondo data reveals that the most frequently booked plane model on the route from Key West to Caribbean Islands is ATR 72-201 / 202, representing 26.68% of all bookings. The subsequent popular models are Airbus A319 at 23.15%, Embraer 175 at 9.23%, and Embraer 190 at 8.39%.

Best airlines flying from Key West to Caribbean Islands

Compare and see reviews for airlines that fly from Key West to Caribbean Islands with momondo

Airline	Rating	Free Cancellation	Price
American Airlines	PriceFrom $304	Free Cancellation	Rating 7.2 10,000 reviews		Search American Airlines flights

Why use momondo?

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

It is quick and easy to find Key West to Caribbean Islands 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 Caribbean Islands that suits you.

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

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

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

Once you have performed a search for Key West to Caribbean Islands 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 Key West to Caribbean Islands right now. Can momondo alert me if prices change?

If you are simply researching potential flights to Caribbean Islands, momondo offers a useful price alert feature which will track prices for flights to Caribbean Islands from Key West and alert you when they change.

An easier way to manage your Caribbean Islands 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.

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Find better results for your trip to Caribbean Islands

Popular cities in Caribbean Islands

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Cheap flights from Key West to Caribbean Islands from $233

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Key West to Caribbean Islands departing on 11/14. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.

Big names and deals

Big names and deals

Filter for what you want

Filter for what you want

Trusted and free

Trusted and free

Price Alerts

Price Alerts

Find the cheapest flights from Key West to Caribbean Islands

Cheap round-trip flights

Cheap one-way flights

Cheap last minute flights

American Airlines flights from Key West to Caribbean Islands

Our best American Airlines deals on Key West to Caribbean Islands flight tickets

United Airlines flights from Key West to Caribbean Islands

Our best United Airlines deals on Key West to Caribbean Islands flight tickets

momondo Fare Finder

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

See travel insights to Caribbean Islands from

How to get the cheapest flight ticket from Key West to Caribbean Islands

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 time of day to depart on your flight to Caribbean Islands?

Can stopping save me money on Key West to Caribbean Islands flights?

No. A direct flight is the cheapest option for a flight between Key West to Caribbean Islands.

What is the cheapest airline that flies from Key West to Caribbean Islands?

American Airlines, United Airlines, and Spirit Airlines are the most popular carriers operating from Key West to Caribbean Islands

Cheap Key West to Caribbean Islands flight deals and tips

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

Best Price Found

Fastest flight time

Direct flights

Airports in Caribbean Islands

When did momondo last update prices for flights from Key West Airport to Caribbean Islands?

How many operators does momondo search for flights from Key West Airport to Caribbean Islands?

How old do you have to be to fly from Key West Airport to Caribbean Islands?

What documentation or ID do you need to fly to Caribbean Islands?

What is the most popular plane model from Key West to Caribbean Islands?

Best airlines flying from Key West to Caribbean Islands

Compare and see reviews for airlines that fly from Key West to Caribbean Islands with momondo

Why use momondo?

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

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

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

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

An easier way to manage your Caribbean Islands 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.

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.

Find better results for your trip to Caribbean Islands

Popular cities in Caribbean Islands

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