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Cheap flights from San Diego to Puerto Rico from $131

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from San Diego to Puerto Rico departing on 5/18. 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 San Diego to Puerto Rico

Cheap round-trip flights

Enter your travel dates to find the best prices.
American Airlines Logo
12:32 pm - 9:43 am
SAN
-
SJU
18h 11m
1 stop
American Airlines Logo
6:51 am - 7:18 pm
SJU
-
SAN
15h 27m
1 stop
$294American Airlines
Fri, Aug 21 - Fri, Aug 28
American Airlines Logo
10:45 pm - 2:38 pm
SAN
-
SJU
12h 53m
2 stops
American Airlines Logo
7:14 pm - 10:49 am
SJU
-
SAN
18h 35m
1 stop
$299American Airlines
Wed, Aug 19 - Mon, Aug 24
American Airlines Logo
12:32 pm - 9:43 am
SAN
-
SJU
18h 11m
1 stop
American Airlines Logo
6:51 am - 7:18 pm
SJU
-
SAN
15h 27m
1 stop
$301American Airlines
Fri, Aug 21 - Fri, Aug 28
Multiple Airlines Logo
12:29 pm - 2:33 pm
SAN
-
SJU
23h 04m
1 stop
Multiple Airlines Logo
6:30 am - 8:42 am
SJU
-
SAN
29h 12m
2 stops
$302Multiple Airlines
Sat, May 9 - Thu, May 14
United Airlines Logo
8:00 am - 8:38 pm
SAN
-
SJU
9h 38m
1 stop
United Airlines Logo
7:00 am - 1:17 pm
SJU
-
SAN
9h 17m
1 stop
$328United Airlines
Thu, Aug 20 - Tue, Aug 25
Multiple Airlines Logo
12:29 pm - 2:33 pm
SAN
-
SJU
23h 04m
1 stop
Multiple Airlines Logo
6:41 pm - 8:42 am
SJU
-
SAN
41h 01m
2 stops
$329Multiple Airlines
Sat, May 9 - Fri, May 15
American Airlines Logo
12:32 pm - 9:43 am
SAN
-
SJU
18h 11m
1 stop
American Airlines Logo
7:10 pm - 11:32 am
SJU
-
SAN
19h 22m
1 stop
$334American Airlines
Sun, Aug 16 - Sat, Aug 22
United Airlines Logo
6:40 am - 11:09 pm
SAN
-
BQN
13h 29m
2 stops
United Airlines Logo
12:15 am - 9:49 am
BQN
-
SAN
12h 34m
1 stop
$430United Airlines
Tue, Sep 1 - Wed, Sep 30
JetBlue Logo
8:30 pm - 6:36 pm
SAN
-
BQN
19h 06m
1 stop
JetBlue Logo
6:00 am - 8:01 pm
BQN
-
SAN
17h 01m
1 stop
$694JetBlue
Tue, Sep 1 - Thu, Oct 1
JetBlue Logo
11:45 am - 2:57 am
SAN
-
BQN
12h 12m
1 stop
JetBlue Logo
3:17 pm - 9:52 am
BQN
-
SAN
21h 35m
2 stops
$737JetBlue
Thu, May 28 - Tue, Jun 2

Frontier flights from San Diego to Puerto Rico

Our best Frontier deals on San Diego to Puerto Rico flight tickets
Frontier
May 18
SAN6:25 amSan Diego
27h 50m
2 stops
SJU1:15 pmSan Juan Luis Munoz Marin Intl
May 23
SJU6:25 amSan Juan Luis Munoz Marin Intl
15h 00m
1 stop
SAN6:25 pmSan Diego
$394
Frontier
May 18
SAN6:25 amSan Diego
28h 36m
2 stops
SJU2:01 pmSan Juan Luis Munoz Marin Intl
May 23
SJU6:25 amSan Juan Luis Munoz Marin Intl
15h 00m
1 stop
SAN6:25 pmSan Diego
$408
Frontier
May 18
SAN6:25 amSan Diego
28h 36m
2 stops
SJU2:01 pmSan Juan Luis Munoz Marin Intl
May 21
SJU6:25 amSan Juan Luis Munoz Marin Intl
15h 05m
1 stop
SAN6:30 pmSan Diego
$416

United Airlines flights from San Diego to Puerto Rico

Our best United Airlines deals on San Diego to Puerto Rico flight tickets
United Airlines
Aug 20
SAN8:00 amSan Diego
9h 38m
1 stop
SJU8:38 pmSan Juan Luis Munoz Marin Intl
Aug 25
SJU7:00 amSan Juan Luis Munoz Marin Intl
9h 17m
1 stop
SAN1:17 pmSan Diego
$328
United Airlines
Aug 12
SAN6:20 amSan Diego
11h 18m
2 stops
SJU8:38 pmSan Juan Luis Munoz Marin Intl
Aug 17
SJU2:20 pmSan Juan Luis Munoz Marin Intl
10h 05m
1 stop
SAN9:25 pmSan Diego
$393
United Airlines
May 28
SAN10:30 pmSan Diego
10h 34m
1 stop
SJU12:04 pmSan Juan Luis Munoz Marin Intl
Jun 2
SJU1:00 amSan Juan Luis Munoz Marin Intl
11h 21m
1 stop
SAN9:21 amSan Diego
$427

momondo Fare Finder

 
Customize your flight search to find flights from San Diego to Puerto Rico 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 April 28, 2026.
Use the filters below to find and compare flights from San Diego to Puerto Rico that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

San DiegoSan Juan

SAN - SJU

SANSJU

San Diego

Fri 8/21

12:32 pm-9:43 am

1 stop18h 11m

San Juan Luis Munoz Marin Intl

Fri 8/28

6:51 am-7:18 pm

1 stop15h 27m

$294

San DiegoSan Juan

SAN - SJU

SANSJU

San Diego

Wed 8/19

10:45 pm-2:38 pm

2 stops12h 53m

San Juan Luis Munoz Marin Intl

Mon 8/24

7:14 pm-10:49 am

1 stop18h 35m

$299

San DiegoSan Juan

SAN - SJU

SANSJU

San Diego

Fri 8/21

12:32 pm-9:43 am

1 stop18h 11m

San Juan Luis Munoz Marin Intl

Fri 8/28

6:51 am-7:18 pm

1 stop15h 27m

$301

San DiegoSan Juan

SAN - SJU

SANSJU

San Diego

Sat 5/9

12:29 pm-2:33 pm

1 stop23h 04m

San Juan Luis Munoz Marin Intl

Thu 5/14

6:30 am-8:42 am

2 stops29h 12m

$302
Quickest round-trip

San DiegoSan Juan

SAN - SJU

SANSJU

San Diego

Thu 8/20

8:00 am-8:38 pm

1 stop9h 38m

San Juan Luis Munoz Marin Intl

Tue 8/25

7:00 am-1:17 pm

1 stop9h 17m

$328

San DiegoSan Juan

SAN - SJU

SANSJU

San Diego

Sat 5/9

12:29 pm-2:33 pm

1 stop23h 04m

San Juan Luis Munoz Marin Intl

Fri 5/15

6:41 pm-8:42 am

2 stops41h 01m

$329

San DiegoSan Juan

SAN - SJU

SANSJU

San Diego

Sun 8/16

12:32 pm-9:43 am

1 stop18h 11m

San Juan Luis Munoz Marin Intl

Sat 8/22

7:10 pm-11:32 am

1 stop19h 22m

$334

San DiegoAguadilla

SAN - BQN

SANBQN

San Diego

Tue 9/1

6:40 am-11:09 pm

2 stops13h 29m

Aguadilla Borinquen

Wed 9/30

12:15 am-9:49 am

1 stop12h 34m

$430

San DiegoAguadilla

SAN - BQN

SANBQN

San Diego

Tue 9/1

8:30 pm-6:36 pm

1 stop19h 06m

Aguadilla Borinquen

Thu 10/1

6:00 am-8:01 pm

1 stop17h 01m

$694

San DiegoAguadilla

SAN - BQN

SANBQN

San Diego

Thu 5/28

11:45 am-2:57 am

1 stop12h 12m

Aguadilla Borinquen

Tue 6/2

3:17 pm-9:52 am

2 stops21h 35m

$737

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 Puerto Rico from

How to get the cheapest flight ticket from San Diego to Puerto Rico

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 Puerto Rico?

If you don’t want to visit Puerto Rico in September, then you should wait until March to fly from San Diego, when ticket prices are also cheap, with an average price of $158.

How far in advance should I book a flight from San Diego to Puerto Rico?

You are more likely to see cheaper flights to Puerto Rico from San Diego when booking weeks ahead of your departure date. In general, you can expect to find flights to Puerto Rico for around $518 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Puerto Rico from San Diego for as low as $423 on momondo.

Cheap San Diego to Puerto Rico flight deals and tips

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

Fastest flight time

9h 45m

Direct flights

None
The fastest flight from San Diego to Puerto Rico takes 9h 45m
There are no direct flights from San Diego to Puerto Rico. There are no popular flight routes from San Diego to Puerto Rico.
Search flight deals

Frequently asked questions about flying from San Diego to Puerto Rico

  • When did momondo last update prices for flights from San Diego Airport to Puerto Rico?

    Prices for flights from San Diego Airport to Puerto Rico refresh daily.

  • How many operators does momondo search for flights from San Diego Airport to Puerto Rico?

  • How old do you have to be to fly from San Diego Airport to Puerto Rico?

    Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from San Diego 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.

  • What is the most popular plane model from San Diego to Puerto Rico?

Best airlines flying from San Diego to Puerto Rico

Compare and see reviews for airlines that fly from San Diego to Puerto Rico with momondo
Airline
Rating
Free Cancellation
Price
DeltaPriceFrom $176Free CancellationRating
7.9
8,467 reviews
Search Delta flights
United AirlinesPriceFrom $182Free CancellationRating
7.4
9,680 reviews
Search United Airlines flights
JetBluePriceFrom $214Free CancellationRating
7.1
2,968 reviews
Search JetBlue flights
FrontierPriceFrom $215Free CancellationRating
5.6
2,970 reviews
Search Frontier flights
Spirit AirlinesPriceFrom $260Free CancellationRating
6.3
8,631 reviews
Search Spirit Airlines flights
American AirlinesPriceFrom $302Free CancellationRating
7.1
11,680 reviews
Search American Airlines flights
SouthwestPriceFrom $382Free CancellationRating
8.0
4,315 reviews
Search Southwest flights
Alaska AirlinesPriceFrom $426Free CancellationRating
7.9
12,312 reviews
Search Alaska Airlines flights

Why use momondo?

Why should I use momondo to find a flight deal from San Diego to Puerto Rico?

Finding the right flight to Puerto Rico from San Diego is quick and easy when you have a range of options in front of you, from reputable agents and recognisable airlines. Options that can then be filtered down to find the best fit. That is what momondo does. We make finding flights to Puerto Rico quick and easy, saving you time and money.

Can I find flights from San Diego to Puerto Rico with flexible booking policies on momondo?

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

How can momondo help me find flights from San Diego to Puerto Rico?

Once you have performed a search in the form on the page, momondo provides useful filters and insights. We can show you the cheapest days and times to fly as well as help filter your options to help you make an informed choice when booking flights to Puerto Rico from San Diego.

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

Price alerts on flights to Puerto Rico from San Diego are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.

An easier way to manage your Puerto Rico trip

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Find better results for your trip to Puerto Rico

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