How do I get Price Alerts for flights from Key West to Puerto Rico?

You can take advantage of momondo’s Price Alerts by first searching for your flights to Key West from Puerto Rico . Flight offers will be shown to you in real-time. From there you can create a Price Alert by using our on-site widget.

How can I save money on flights from Key West to Puerto Rico with momondo?

With “Price Forecast”, learn how soon you should book your flight in advance. Down to the day of week and time of day, our information can inform you on the ideal time to book to save on your travel. Our “Price Calendar” shows you at a quick glance when to book your travel for lower rates. By setting “Price Alerts” you can monitor changes in price and target the ideal time to book. Search for your trip destination by budget amount via our “Explore” feature. Whether you’re looking for ideas for your next travel adventure or cost-cutting tips, our “Discover” content is a great place to start.

How does momondo find its flight prices?

We show prices from over 700+ competitors with a single click. With options from airlines and OTAs from across our 30 international markets, we are able to show you a diverse range of deals to create your adventure.

When did momondo last update prices for flights from Key West Airport to Puerto Rico?

Prices for flights from Key West Airport to Puerto Rico refresh daily.

How many operators does momondo search for flights from Key West Airport to Puerto Rico?

There is 1 operator available for flights from Key West Airport to Puerto Rico as of November 2026.

How old do you have to be to fly from Key West Airport to Puerto Rico?

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 Key West Airport to Puerto Rico.

What documentation or ID do you need to fly to Puerto Rico?

The travel and health documents required for your trip to Puerto Rico 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 Puerto Rico. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

$200 Cheap Flights from Key West to Puerto Rico in 2026/27

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from Key West to Puerto Rico

Round-trip

One-way

Cheap round-trip flights

Enter your travel dates to find the best prices.

12:06 pm - 1:36 amEYW Key West-SJU San Juan Luis Munoz Marin Intl

12h 30m2 stops Tampa Atlanta Hartsfield-Jackson

3:55 am - 10:19 amSJU San Juan Luis Munoz Marin Intl-EYW Key West

7h 24m1 stop Orlando

$367Multiple Airlines

Thu, Jan 14 - Sun, Jan 17

10:04 am - 12:59 amEYW Key West-SJU San Juan Luis Munoz Marin Intl

13h 55m2 stops Tampa Atlanta Hartsfield-Jackson

10:54 pm - 8:56 pmSJU San Juan Luis Munoz Marin Intl-EYW Key West

23h 02m1 stop Tampa

$393Multiple Airlines

Wed, Nov 18 - Fri, Nov 20

12:01 pm - 9:53 amEYW Key West-SJU San Juan Luis Munoz Marin Intl

20h 52m2 stops Tampa Philadelphia

10:54 pm - 9:24 amSJU San Juan Luis Munoz Marin Intl-EYW Key West

11h 30m1 stop Tampa

$398Multiple Airlines

Thu, Nov 19 - Fri, Nov 27

12:01 pm - 9:53 amEYW Key West-SJU San Juan Luis Munoz Marin Intl

20h 52m2 stops Tampa Philadelphia

3:19 pm - 11:19 amSJU San Juan Luis Munoz Marin Intl-EYW Key West

21h 00m1 stop Raleigh-Durham

$402Multiple Airlines

Thu, Nov 19 - Thu, Nov 26

9:20 am - 2:46 amEYW Key West-SJU San Juan Luis Munoz Marin Intl

16h 26m1 stop Orlando Sanford Intl

6:00 am - 8:56 pmSJU San Juan Luis Munoz Marin Intl-EYW Key West

39h 56m2 stops Baltimore/Washington Tampa

$402Multiple Airlines

Mon, Nov 16 - Fri, Nov 20

12:59 pm - 9:49 pmEYW Key West-SJU San Juan Luis Munoz Marin Intl

7h 50m1 stop Tampa

5:16 pm - 10:19 amSJU San Juan Luis Munoz Marin Intl-EYW Key West

18h 03m2 stops Philadelphia Orlando

$404Multiple Airlines

Fri, Nov 27 - Mon, Dec 7

12:59 pm - 9:49 pmEYW Key West-SJU San Juan Luis Munoz Marin Intl

7h 50m1 stop Tampa

5:19 am - 9:24 amSJU San Juan Luis Munoz Marin Intl-EYW Key West

29h 05m2 stops Atlanta Hartsfield-Jackson Tampa

$405Multiple Airlines

Fri, Nov 20 - Fri, Nov 27

12:59 pm - 1:07 amEYW Key West-SJU San Juan Luis Munoz Marin Intl

35h 08m2 stops Tampa Atlanta Hartsfield-Jackson

6:00 am - 12:19 pmSJU San Juan Luis Munoz Marin Intl-EYW Key West

7h 19m1 stop Tampa

$410Multiple Airlines

Mon, Nov 30 - Mon, Dec 7

11:25 am - 9:38 amEYW Key West-SJU San Juan Luis Munoz Marin Intl

21h 13m1 stop Miami

6:00 am - 10:56 amSJU San Juan Luis Munoz Marin Intl-EYW Key West

5h 56m1 stop Miami

$719American Airlines

Sat, Nov 28 - Sun, Dec 13

11:25 am - 9:38 amEYW Key West-SJU San Juan Luis Munoz Marin Intl

21h 13m1 stop Miami

3:11 pm - 7:27 pmSJU San Juan Luis Munoz Marin Intl-EYW Key West

5h 16m1 stop Miami

$719American Airlines

Sat, Nov 28 - Sat, Dec 12

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United Airlines flights from Key West to Puerto Rico

Our best United Airlines deals on Key West to Puerto Rico flight tickets

United Airlines

Nov 18

EYW2:51 pmKey West

8h 45m

1 stop

SJU12:36 amSan Juan Luis Munoz Marin Intl

Nov 20

SJU7:35 pmSan Juan Luis Munoz Marin Intl

19h 19m

1 stop

EYW1:54 pmKey West

$1,002

United Airlines

Nov 18

EYW2:51 pmKey West

8h 45m

1 stop

SJU12:36 amSan Juan Luis Munoz Marin Intl

Nov 19

SJU7:35 pmSan Juan Luis Munoz Marin Intl

19h 17m

1 stop

EYW1:52 pmKey West

$1,036

United Airlines

Nov 26

EYW11:25 amKey West

48h 50m

2 stops

SJU1:15 pmSan Juan Luis Munoz Marin Intl

Dec 7

SJU8:05 amSan Juan Luis Munoz Marin Intl

28h 19m

2 stops

EYW11:24 amKey West

$1,114

American Airlines flights from Key West to Puerto Rico

Our best American Airlines deals on Key West to Puerto Rico flight tickets

American Airlines

Nov 28

EYW11:25 amKey West

21h 13m

1 stop

SJU9:38 amSan Juan Luis Munoz Marin Intl

Dec 12

SJU3:11 pmSan Juan Luis Munoz Marin Intl

5h 16m

1 stop

EYW7:27 pmKey West

$719

American Airlines

Nov 26

EYW11:25 amKey West

7h 17m

1 stop

SJU7:42 pmSan Juan Luis Munoz Marin Intl

Dec 6

SJU6:00 amSan Juan Luis Munoz Marin Intl

8h 14m

1 stop

EYW1:14 pmKey West

$746

American Airlines

Mar 15

EYW4:08 pmKey West

5h 17m

1 stop

SJU9:25 pmSan Juan Luis Munoz Marin Intl

Mar 19

SJU7:12 amSan Juan Luis Munoz Marin Intl

8h 26m

1 stop

EYW3:38 pmKey West

$792

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

Quickest round-trip

Key WestSan Juan

EYW Key West - SJU San Juan Luis Munoz Marin Intl

EYWSJU

Key West

Thu 1/14

12:06 pm-1:36 am

2 stops12h 30m

San Juan Luis Munoz Marin Intl

Sun 1/17

3:55 am-10:19 am

1 stop7h 24m

$367

Key WestSan Juan

EYW Key West - SJU San Juan Luis Munoz Marin Intl

EYWSJU

Key West

Wed 11/18

10:04 am-12:59 am

2 stops13h 55m

San Juan Luis Munoz Marin Intl

Fri 11/20

10:54 pm-8:56 pm

1 stop23h 02m

$393

Key WestSan Juan

EYW Key West - SJU San Juan Luis Munoz Marin Intl

EYWSJU

Key West

Thu 11/19

12:01 pm-9:53 am

2 stops20h 52m

San Juan Luis Munoz Marin Intl

Fri 11/27

10:54 pm-9:24 am

1 stop11h 30m

$398

Key WestSan Juan

EYW Key West - SJU San Juan Luis Munoz Marin Intl

EYWSJU

Key West

Thu 11/19

12:01 pm-9:53 am

2 stops20h 52m

San Juan Luis Munoz Marin Intl

Thu 11/26

3:19 pm-11:19 am

1 stop21h 00m

$402

Key WestSan Juan

EYW Key West - SJU San Juan Luis Munoz Marin Intl

EYWSJU

Key West

Mon 11/16

9:20 am-2:46 am

1 stop16h 26m

San Juan Luis Munoz Marin Intl

Fri 11/20

6:00 am-8:56 pm

2 stops39h 56m

$402

Key WestSan Juan

EYW Key West - SJU San Juan Luis Munoz Marin Intl

EYWSJU

Key West

Fri 11/27

12:59 pm-9:49 pm

1 stop7h 50m

San Juan Luis Munoz Marin Intl

Mon 12/7

5:16 pm-10:19 am

2 stops18h 03m

$404

Key WestSan Juan

EYW Key West - SJU San Juan Luis Munoz Marin Intl

EYWSJU

Key West

Fri 11/20

12:59 pm-9:49 pm

1 stop7h 50m

San Juan Luis Munoz Marin Intl

Fri 11/27

5:19 am-9:24 am

2 stops29h 05m

$405

Key WestSan Juan

EYW Key West - SJU San Juan Luis Munoz Marin Intl

EYWSJU

Key West

Mon 11/30

12:59 pm-1:07 am

2 stops35h 08m

San Juan Luis Munoz Marin Intl

Mon 12/7

6:00 am-12:19 pm

1 stop7h 19m

$410

Key WestSan Juan

EYW Key West - SJU San Juan Luis Munoz Marin Intl

EYWSJU

Key West

Sat 11/28

11:25 am-9:38 am

1 stop21h 13m

San Juan Luis Munoz Marin Intl

Sun 12/13

6:00 am-10:56 am

1 stop5h 56m

$719

Key WestSan Juan

EYW Key West - SJU San Juan Luis Munoz Marin Intl

EYWSJU

Key West

Sat 11/28

11:25 am-9:38 am

1 stop21h 13m

San Juan Luis Munoz Marin Intl

Sat 12/12

3:11 pm-7:27 pm

1 stop5h 16m

$719

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 13 resultsSorted by cheapest first

Cheap Key West to Puerto Rico flight deals and tips

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

Best Price Found	$200
Fastest flight time	8h 08m
Direct flights	None

The best one-way flight to Puerto Rico from Key West in the past 72 hours is $200. The best round-trip flight deal from Key West to Puerto Rico found on momondo in the last 72 hours is $367.

The fastest flight from Key West to Puerto Rico takes 8h 08m

There are no direct flights from Key West to Puerto Rico. There are no popular flight routes from Key West to Puerto Rico.

Search flight deals

Frequently asked questions about flying from Key West to Puerto Rico

When did momondo last update prices for flights from Key West Airport to Puerto Rico?
Prices for flights from Key West Airport to Puerto Rico refresh daily.
How many operators does momondo search for flights from Key West Airport to Puerto Rico?
There is 1 operator available for flights from Key West Airport to Puerto Rico as of November 2026.
How old do you have to be to fly from Key West Airport to Puerto Rico?
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 Key West Airport to Puerto Rico.
What documentation or ID do you need to fly to Puerto Rico?
The travel and health documents required for your trip to Puerto Rico 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 Puerto Rico. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

Best airlines flying from Key West to Puerto Rico

Compare and see reviews for airlines that fly from Key West to Puerto Rico with momondo

Airline	Rating	Free Cancellation	Price
American Airlines	PriceFrom $415	Free Cancellation	Rating 7.0 12,230 reviews		Search American Airlines flights

Frequently asked questions about flying from Key West to Puerto Rico

How do I get Price Alerts for flights from Key West to Puerto Rico?
You can take advantage of momondo’s Price Alerts by first searching for your flights to Key West from Puerto Rico. Flight offers will be shown to you in real-time. From there you can create a Price Alert by using our on-site widget.
How can I save money on flights from Key West to Puerto Rico with momondo?
With “Price Forecast”, learn how soon you should book your flight in advance. Down to the day of week and time of day, our information can inform you on the ideal time to book to save on your travel. Our “Price Calendar” shows you at a quick glance when to book your travel for lower rates. By setting “Price Alerts” you can monitor changes in price and target the ideal time to book. Search for your trip destination by budget amount via our “Explore” feature. Whether you’re looking for ideas for your next travel adventure or cost-cutting tips, our “Discover” content is a great place to start.
How does momondo find its flight prices?
We show prices from over 700+ competitors with a single click. With options from airlines and OTAs from across our 30 international markets, we are able to show you a diverse range of deals to create your adventure.

Why use momondo?

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

To find the flight that best suits your needs, momondo gathers a range of flights from a large pool of different airlines and agents; you can then use our insights and filters to find and book the right flight to Puerto Rico from Key West.

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

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

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

momondo offers useful filters to help you find the right flight. Choose specific flight times, airports or even what payment method you prefer. We have numerous options to help you book your ideal flight from Key West to Puerto Rico.

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

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

An easier way to manage your Puerto Rico 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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Popular cities

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Feeling lucky

Popular cities in Puerto Rico

Flights to San Juanfrom $118

Flights to Aguadillafrom $157

Flights to Poncefrom $214

Flights to Viequesfrom $507

Flights to Culebrafrom $452

Flights to Mayagüezfrom $305

Cheap flights from Key West to Puerto Rico from $200

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 Puerto Rico departing on 2/25. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.

Find the cheapest flights from Key West to Puerto Rico

Cheap round-trip flights

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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

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United Airlines flights from Key West to Puerto Rico

Our best United Airlines deals on Key West to Puerto Rico flight tickets

American Airlines flights from Key West to Puerto Rico

Our best American Airlines deals on Key West to Puerto Rico flight tickets

momondo Fare Finder

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

Cheap Key West to Puerto Rico flight deals and tips

Best Price Found

Fastest flight time

Direct flights

Frequently asked questions about flying from Key West to Puerto Rico

Best airlines flying from Key West to Puerto Rico

Compare and see reviews for airlines that fly from Key West to Puerto Rico with momondo

Frequently asked questions about flying from Key West to Puerto Rico

Why use momondo?

An easier way to manage your Puerto Rico 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 Puerto Rico

Popular cities in Puerto Rico

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

Key West flight routes

According to popular flight searches on momondo this year

Puerto Rico flight routes

According to popular flight searches on momondo this year

Fly your favorite airline to Puerto Rico

Airlines are sorted and displayed according to clicks in the past 7 days on momondo

Cabin classes currently available on flights to Puerto Rico

List of cabin classes available on flights landing in Puerto Rico. Availability may vary depending on flight origin and airline.

Complete your trip to Puerto Rico

Explore popular destinations other users love

According to popular flight searches on momondo this year