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Cheap flights from Puerto Rico to Key West from $162

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Puerto Rico to Key West departing on 5/4. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
0 bags

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Find the cheapest flights from Puerto Rico to Key West

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

Enter your travel dates to find the best prices.
Multiple Airlines Logo
7:54 pm - 11:30 am
SJU
-
EYW
15h 36m
1 stop
Multiple Airlines Logo
9:49 am - 1:29 pm
EYW
-
SJU
27h 40m
1 stop
$321Multiple Airlines
Wed, Apr 1 - Mon, Apr 6
Multiple Airlines Logo
7:54 pm - 10:21 am
SJU
-
EYW
14h 27m
2 stops
Multiple Airlines Logo
9:49 am - 1:29 pm
EYW
-
SJU
27h 40m
1 stop
$336Multiple Airlines
Wed, Apr 1 - Mon, Apr 6
Multiple Airlines Logo
7:54 pm - 11:30 am
SJU
-
EYW
15h 36m
1 stop
Multiple Airlines Logo
9:49 am - 1:29 pm
EYW
-
SJU
27h 40m
1 stop
$398Multiple Airlines
Tue, Mar 31 - Mon, Apr 6
Multiple Airlines Logo
3:22 pm - 11:11 am
SJU
-
EYW
19h 49m
2 stops
Multiple Airlines Logo
9:49 am - 1:29 pm
EYW
-
SJU
27h 40m
1 stop
$412Multiple Airlines
Tue, Mar 31 - Mon, Apr 6
Multiple Airlines Logo
1:59 am - 10:21 am
SJU
-
EYW
32h 22m
2 stops
Multiple Airlines Logo
11:51 am - 9:59 pm
EYW
-
SJU
10h 08m
1 stop
$456Multiple Airlines
Fri, Mar 20 - Wed, Mar 25
Multiple Airlines Logo
9:41 pm - 9:06 am
SJU
-
EYW
11h 25m
1 stop
Multiple Airlines Logo
11:51 am - 9:59 pm
EYW
-
SJU
10h 08m
1 stop
$516Multiple Airlines
Sat, Mar 21 - Wed, Mar 25
Spirit Airlines Logo
7:54 pm - 11:30 am
SJU
-
EYW
15h 36m
1 stop
Spirit Airlines Logo
12:25 pm - 9:59 pm
EYW
-
SJU
33h 34m
3 stops
$637Spirit Airlines
Sat, Mar 21 - Wed, Mar 25
United Airlines Logo
7:20 am - 4:42 pm
SJU
-
EYW
9h 22m
1 stop
United Airlines Logo
2:35 pm - 11:50 pm
EYW
-
SJU
9h 15m
1 stop
$646United Airlines
Tue, Apr 14 - Wed, Apr 15
Spirit Airlines Logo
1:39 am - 11:30 am
SJU
-
EYW
33h 51m
3 stops
Spirit Airlines Logo
12:25 pm - 8:53 am
EYW
-
SJU
20h 28m
2 stops
$679Spirit Airlines
Fri, Mar 20 - Wed, Mar 25
Spirit Airlines Logo
1:39 am - 11:30 am
SJU
-
EYW
33h 51m
3 stops
Spirit Airlines Logo
12:25 pm - 9:59 pm
EYW
-
SJU
33h 34m
3 stops
$688Spirit Airlines
Fri, Mar 20 - Wed, Mar 25

United Airlines flights from Puerto Rico to Key West

Our best United Airlines deals on Puerto Rico to Key West flight tickets
United Airlines
Apr 14
SJU7:20 amSan Juan Luis Munoz Marin Intl
9h 22m
1 stop
EYW4:42 pmKey West
Apr 15
EYW2:35 pmKey West
9h 15m
1 stop
SJU11:50 pmSan Juan Luis Munoz Marin Intl
$646
United Airlines
Apr 14
SJU7:20 amSan Juan Luis Munoz Marin Intl
9h 22m
1 stop
EYW4:42 pmKey West
Apr 15
EYW2:35 pmKey West
9h 15m
1 stop
SJU11:50 pmSan Juan Luis Munoz Marin Intl
$711
United Airlines
Apr 14
SJU7:20 amSan Juan Luis Munoz Marin Intl
9h 22m
1 stop
EYW4:42 pmKey West
Apr 15
EYW5:23 pmKey West
28h 01m
2 stops
SJU9:24 pmSan Juan Luis Munoz Marin Intl
$856

American Airlines flights from Puerto Rico to Key West

Our best American Airlines deals on Puerto Rico to Key West flight tickets
American Airlines
Apr 1
SJU7:11 amSan Juan Luis Munoz Marin Intl
9h 38m
1 stop
EYW4:49 pmKey West
Apr 6
EYW3:56 pmKey West
7h 02m
1 stop
SJU10:58 pmSan Juan Luis Munoz Marin Intl
$821
American Airlines
Mar 31
SJU7:11 amSan Juan Luis Munoz Marin Intl
9h 38m
1 stop
EYW4:49 pmKey West
Apr 6
EYW3:56 pmKey West
7h 02m
1 stop
SJU10:58 pmSan Juan Luis Munoz Marin Intl
$841

momondo Fare Finder

 
Customize your flight search to find flights from Puerto Rico 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 March 6, 2026.
Use the filters below to find and compare flights from Puerto Rico to Key West that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

San JuanKey West

SJU - EYW

SJUEYW

San Juan Luis Munoz Marin Intl

Wed 4/1

7:54 pm-11:30 am

1 stop15h 36m

Key West

Mon 4/6

9:49 am-1:29 pm

1 stop27h 40m

$321

San JuanKey West

SJU - EYW

SJUEYW

San Juan Luis Munoz Marin Intl

Wed 4/1

7:54 pm-10:21 am

2 stops14h 27m

Key West

Mon 4/6

9:49 am-1:29 pm

1 stop27h 40m

$336

San JuanKey West

SJU - EYW

SJUEYW

San Juan Luis Munoz Marin Intl

Tue 3/31

7:54 pm-11:30 am

1 stop15h 36m

Key West

Mon 4/6

9:49 am-1:29 pm

1 stop27h 40m

$398

San JuanKey West

SJU - EYW

SJUEYW

San Juan Luis Munoz Marin Intl

Tue 3/31

3:22 pm-11:11 am

2 stops19h 49m

Key West

Mon 4/6

9:49 am-1:29 pm

1 stop27h 40m

$412

San JuanKey West

SJU - EYW

SJUEYW

San Juan Luis Munoz Marin Intl

Fri 3/20

1:59 am-10:21 am

2 stops32h 22m

Key West

Wed 3/25

11:51 am-9:59 pm

1 stop10h 08m

$456

San JuanKey West

SJU - EYW

SJUEYW

San Juan Luis Munoz Marin Intl

Sat 3/21

9:41 pm-9:06 am

1 stop11h 25m

Key West

Wed 3/25

11:51 am-9:59 pm

1 stop10h 08m

$516

San JuanKey West

SJU - EYW

SJUEYW

San Juan Luis Munoz Marin Intl

Sat 3/21

7:54 pm-11:30 am

1 stop15h 36m

Key West

Wed 3/25

12:25 pm-9:59 pm

3 stops33h 34m

$637
Quickest round-trip

San JuanKey West

SJU - EYW

SJUEYW

San Juan Luis Munoz Marin Intl

Tue 4/14

7:20 am-4:42 pm

1 stop9h 22m

Key West

Wed 4/15

2:35 pm-11:50 pm

1 stop9h 15m

$646

San JuanKey West

SJU - EYW

SJUEYW

San Juan Luis Munoz Marin Intl

Fri 3/20

1:39 am-11:30 am

3 stops33h 51m

Key West

Wed 3/25

12:25 pm-8:53 am

2 stops20h 28m

$679

San JuanKey West

SJU - EYW

SJUEYW

San Juan Luis Munoz Marin Intl

Fri 3/20

1:39 am-11:30 am

3 stops33h 51m

Key West

Wed 3/25

12:25 pm-9:59 pm

3 stops33h 34m

$688

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 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

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

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

Fastest flight time

9h 02m

Direct flights

None
The fastest flight from Puerto Rico to Key West takes 9h 02m
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 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.

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 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.

An easier way to manage your Key West trip

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