What is the cheapest airline that flies from Puerto Rico to Key West?

American Airlines is the most popular carrier operating from Puerto Rico to Key West

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

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

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

The number of operators available for flights from Puerto Rico to Key West Airport is 1 as of August 2025.

How old do you have to be to fly from Puerto Rico 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 Puerto Rico 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.

$202 Cheap Flights from Puerto Rico to Key West in 2025

1 adult

0 bags

Discover deals from 900+ travel sites with momondo.

Save money when you book flights with momondo

Big names and deals

Search 100s of travel sites to compare prices.

Filter for what you want

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

Trusted and free

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

Price Alerts

Not ready to book? to track prices.

Search flight deals

Find the cheapest flights from Puerto Rico to Key West

Round-trip

One-way

Last minute

Recent round-trip flight deals from Puerto Rico to Key West

2:35 pm - 7:22 pmSJU-EYW

4h 47m1 stop

8:00 pm - 12:05 pmEYW-SJU

15h 05m1 stop

$390American Airlines

Find Deal

sáb., nov. 1 - sáb., nov. 8

7:05 am - 9:56 pmSJU-EYW

14h 51m2 stops

8:00 pm - 12:05 pmEYW-SJU

15h 05m1 stop

$520American Airlines

Find Deal

sáb., nov. 1 - sáb., nov. 8

12:00 pm - 7:07 pmSJU-EYW

7h 07m1 stop

6:17 pm - 11:11 amEYW-SJU

16h 54m2 stops

$680American Airlines

Find Deal

lun., sep. 1 - vie., sep. 5

12:00 pm - 7:07 pmSJU-EYW

7h 07m1 stop

11:25 am - 11:37 pmEYW-SJU

12h 12m1 stop

$705American Airlines

Find Deal

lun., sep. 1 - vie., sep. 5

5:15 pm - 12:30 pmSJU-EYW

19h 15m2 stops

6:17 pm - 11:11 amEYW-SJU

16h 54m2 stops

$752American Airlines

Find Deal

lun., sep. 1 - vie., sep. 5

4:50 pm - 3:04 pmSJU-EYW

46h 14m3 stops

4:00 pm - 3:40 pmEYW-SJU

22h 40m1 stop

$924United Airlines

Find Deal

sáb., nov. 1 - sáb., nov. 8

7:10 am - 3:04 pmSJU-EYW

31h 54m3 stops

4:00 pm - 9:00 pmEYW-SJU

28h 00m1 stop

$945United Airlines

Find Deal

sáb., nov. 1 - sáb., nov. 8

1:05 am - 2:04 pmSJU-EYW

12h 59m1 stop

3:00 pm - 11:50 amEYW-SJU

43h 50m2 stops

$1,500

Find Deal

vie., oct. 31 - sáb., nov. 8

1:05 am - 2:04 pmSJU-EYW

12h 59m1 stop

3:00 pm - 12:05 pmEYW-SJU

44h 05m2 stops

$1,570

Find Deal

vie., oct. 31 - sáb., nov. 8

1:05 am - 3:19 pmSJU-EYW

14h 14m2 stops

3:00 pm - 11:50 amEYW-SJU

43h 50m2 stops

$2,406

Find Deal

vie., oct. 31 - sáb., nov. 8

American Airlines flights from Puerto Rico to Key West

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

American Airlines

Nov 1

SJU2:35 pmSan Juan Luis Munoz Marin Intl

4h 47m

1 stop

EYW7:22 pmKey West

Nov 8

EYW8:00 pmKey West

15h 05m

1 stop

SJU12:05 pmSan Juan Luis Munoz Marin Intl

$390

Find similar

American Airlines

Nov 1

SJU7:05 amSan Juan Luis Munoz Marin Intl

14h 51m

2 stops

EYW9:56 pmKey West

Nov 8

EYW8:00 pmKey West

15h 05m

1 stop

SJU12:05 pmSan Juan Luis Munoz Marin Intl

$520

Find similar

American Airlines

Aug 23

SJU6:00 amSan Juan Luis Munoz Marin Intl

4h 53m

1 stop

EYW10:53 amKey West

Aug 26

EYW5:55 pmKey West

17h 14m

2 stops

SJU11:09 amSan Juan Luis Munoz Marin Intl

$670

Find similar

United Airlines flights from Puerto Rico to Key West

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

United Airlines

Nov 1

SJU4:50 pmSan Juan Luis Munoz Marin Intl

46h 14m

3 stops

EYW3:04 pmKey West

Nov 8

EYW4:00 pmKey West

22h 40m

1 stop

SJU3:40 pmSan Juan Luis Munoz Marin Intl

$924

Find similar

United Airlines

Nov 1

SJU7:10 amSan Juan Luis Munoz Marin Intl

31h 54m

3 stops

EYW3:04 pmKey West

Nov 8

EYW4:00 pmKey West

28h 00m

1 stop

SJU9:00 pmSan Juan Luis Munoz Marin Intl

$945

Find similar

Fly from

Fly to

Route

Depart

Return

Price

San JuanKey West

SJU - EYW

SJUEYW

San Juan Luis Munoz Marin Intl

sáb. 11/1

2:35 pm-7:22 pm

1 stop4h 47m

Key West

sáb. 11/8

8:00 pm-12:05 pm

1 stop15h 05m

$390

San JuanKey West

SJU - EYW

SJUEYW

San Juan Luis Munoz Marin Intl

sáb. 11/1

7:05 am-9:56 pm

2 stops14h 51m

Key West

sáb. 11/8

8:00 pm-12:05 pm

1 stop15h 05m

$520

San JuanKey West

SJU - EYW

SJUEYW

San Juan Luis Munoz Marin Intl

lun. 9/1

12:00 pm-7:07 pm

1 stop7h 07m

Key West

vie. 9/5

6:17 pm-11:11 am

2 stops16h 54m

$680

San JuanKey West

SJU - EYW

SJUEYW

San Juan Luis Munoz Marin Intl

lun. 9/1

12:00 pm-7:07 pm

1 stop7h 07m

Key West

vie. 9/5

11:25 am-11:37 pm

1 stop12h 12m

$705

San JuanKey West

SJU - EYW

SJUEYW

San Juan Luis Munoz Marin Intl

lun. 9/1

5:15 pm-12:30 pm

2 stops19h 15m

Key West

vie. 9/5

6:17 pm-11:11 am

2 stops16h 54m

$752

San JuanKey West

SJU - EYW

SJUEYW

San Juan Luis Munoz Marin Intl

sáb. 11/1

4:50 pm-3:04 pm

3 stops46h 14m

Key West

sáb. 11/8

4:00 pm-3:40 pm

1 stop22h 40m

$924

San JuanKey West

SJU - EYW

SJUEYW

San Juan Luis Munoz Marin Intl

sáb. 11/1

7:10 am-3:04 pm

3 stops31h 54m

Key West

sáb. 11/8

4:00 pm-9:00 pm

1 stop28h 00m

$945

San JuanKey West

SJU - EYW

SJUEYW

San Juan Luis Munoz Marin Intl

vie. 10/31

1:05 am-2:04 pm

1 stop12h 59m

Key West

sáb. 11/8

3:00 pm-11:50 am

2 stops43h 50m

$1,500

San JuanKey West

SJU - EYW

SJUEYW

San Juan Luis Munoz Marin Intl

vie. 10/31

1:05 am-2:04 pm

1 stop12h 59m

Key West

sáb. 11/8

3:00 pm-12:05 pm

2 stops44h 05m

$1,570

San JuanKey West

SJU - EYW

SJUEYW

San Juan Luis Munoz Marin Intl

vie. 10/31

1:05 am-3:19 pm

2 stops14h 14m

Key West

sáb. 11/8

3:00 pm-11:50 am

2 stops43h 50m

$2,406

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 17 resultsSorted by cheapest first

How to get the cheapest flight ticket from Puerto Rico 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

Prices

Airlines

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 Puerto Rico is on a Thursday. momondo users have found tickets for Thursday departures for as low as $423. However, this price may fluctuate depending on the airline, the season, and holidays. When flying out on a Wednesday, the most expensive travel day of the week, you can expect to see flight prices from Puerto Rico to Key West for around $703.

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 Puerto Rico to Key West in the morning for as low as $478. 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 at noon, with an average ticket price of $633. Departure times at noon fall within the peak daily travel times, which is why tickets can be more expensive.

Cheap Puerto Rico to Key West flight deals and tips

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

Direct flights	None

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

Search flight deals

When did momondo last update prices for flights from Puerto Rico to Key West Airport?
Prices for flights from Puerto Rico to Key West Airport are updated daily.
How many operators does momondo search for flights from Puerto Rico to Key West Airport?
The number of operators available for flights from Puerto Rico to Key West Airport is 1 as of August 2025.
How old do you have to be to fly from Puerto Rico 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 Puerto Rico 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.

Best airlines flying from Puerto Rico to Key West

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

Airline	Rating	Free Cancellation	Price
American Airlines	PriceFrom $393	Free Cancellation	Rating 7.2 10,000 reviews		Search American Airlines flights

Big Pine Key

Little Torch Key

Why use momondo?

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

momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights from Puerto Rico to Key West. Millions of users trust and use momondo every year so you are in good hands.

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

Yes. momondo allows you to filter the results for Puerto Rico to Key West flights to just show those with flexible booking policies.

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

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

Of course. momondo tracks the price of Puerto Rico to Key West flights. All you need is a valid email address and we will do the rest; it is that quick and easy.