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Cheap flights from Puerto Rico to San Diego from $143

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 San Diego departing on 12/23. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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Find the cheapest flights from Puerto Rico to San Diego

Recent round-trip flight deals from Puerto Rico to San Diego

Enter your travel dates to find the best prices.
American Airlines Logo
11:45 am - 8:12 pmSJU-SAN
11h 27m1 stop
American Airlines Logo
9:45 pm - 10:35 amSAN-SJU
9h 50m1 stop
$334American Airlines
Find Deal
Wed, Apr 15 - Mon, Apr 27
Multiple Airlines Logo
7:06 pm - 11:47 pmSJU-SAN
32h 41m1 stop
Multiple Airlines Logo
7:21 pm - 12:33 amSAN-SJU
25h 12m2 stops
$344Multiple Airlines
Find Deal
Mon, Dec 22 - Mon, Jan 5
Frontier Logo
3:54 am - 12:38 pmSJU-SAN
12h 44m2 stops
Frontier Logo
7:21 pm - 4:19 pmSAN-SJU
16h 58m2 stops
$352Frontier
Find Deal
Sun, Dec 21 - Mon, Jan 5
Frontier Logo
3:54 am - 12:38 pmSJU-SAN
12h 44m2 stops
Frontier Logo
9:14 pm - 11:38 pmSAN-SJU
22h 24m2 stops
$369Frontier
Find Deal
Sun, Dec 21 - Sun, Dec 28
Southwest Logo
8:40 am - 5:55 pmSJU-SAN
13h 15m1 stop
Southwest Logo
10:30 am - 12:35 amSAN-SJU
10h 05m1 stop
$374Southwest
Find Deal
Sat, Jan 17 - Thu, Jan 22
JetBlue Logo
5:15 am - 12:47 pmSJU-SAN
11h 32m1 stop
JetBlue Logo
11:27 am - 1:59 amSAN-SJU
10h 32m1 stop
$396JetBlue
Find Deal
Sun, Dec 14 - Thu, Jan 1
JetBlue Logo
8:05 am - 7:51 pmSJU-SAN
15h 46m1 stop
JetBlue Logo
9:05 pm - 9:52 amSAN-SJU
32h 47m1 stop
$430JetBlue
Find Deal
Thu, Nov 13 - Sat, Nov 15
United Airlines Logo
1:09 am - 10:20 amBQN-SAN
13h 11m1 stop
United Airlines Logo
7:05 am - 11:57 pmSAN-BQN
12h 52m1 stop
$438United Airlines
Find Deal
Wed, Feb 25 - Mon, Mar 2
Southwest Logo
8:20 am - 4:10 pmSJU-SAN
10h 50m2 stops
Southwest Logo
6:20 am - 10:40 pmSAN-SJU
13h 20m1 stop
$439Southwest
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Wed, Apr 8 - Tue, Apr 14
United Airlines Logo
2:05 am - 10:20 amSJU-SAN
12h 15m1 stop
United Airlines Logo
3:40 pm - 6:11 amSAN-SJU
10h 31m1 stop
$450United Airlines
Find Deal
Wed, Feb 11 - Sun, Feb 15

American Airlines flights from Puerto Rico to San Diego

Our best American Airlines deals on Puerto Rico to San Diego flight tickets
American Airlines
Apr 15
SJU11:45 amSan Juan Luis Munoz Marin Intl
11h 27m
1 stop
SAN8:12 pmSan Diego
Apr 27
SAN9:45 pmSan Diego
9h 50m
1 stop
SJU10:35 amSan Juan Luis Munoz Marin Intl
$334
Find similar
American Airlines
Feb 19
SJU8:19 amSan Juan Luis Munoz Marin Intl
18h 32m
1 stop
SAN10:51 pmSan Diego
Feb 23
SAN6:35 amSan Diego
13h 13m
1 stop
SJU11:48 pmSan Juan Luis Munoz Marin Intl
$377
Find similar
American Airlines
Apr 15
SJU6:25 amSan Juan Luis Munoz Marin Intl
11h 24m
2 stops
SAN2:49 pmSan Diego
Apr 27
SAN3:25 pmSan Diego
9h 35m
1 stop
SJU4:00 amSan Juan Luis Munoz Marin Intl
$410
Find similar

Frontier flights from Puerto Rico to San Diego

Our best Frontier deals on Puerto Rico to San Diego flight tickets
Frontier
Dec 21
SJU3:54 amSan Juan Luis Munoz Marin Intl
12h 44m
2 stops
SAN12:38 pmSan Diego
Jan 5
SAN7:21 pmSan Diego
16h 58m
2 stops
SJU4:19 pmSan Juan Luis Munoz Marin Intl
$352
Find similar
Frontier
Dec 21
SJU3:54 amSan Juan Luis Munoz Marin Intl
12h 44m
2 stops
SAN12:38 pmSan Diego
Dec 28
SAN9:14 pmSan Diego
22h 24m
2 stops
SJU11:38 pmSan Juan Luis Munoz Marin Intl
$369
Find similar
Frontier
Dec 21
SJU3:54 amSan Juan Luis Munoz Marin Intl
12h 44m
2 stops
SAN12:38 pmSan Diego
Dec 28
SAN9:14 pmSan Diego
22h 24m
2 stops
SJU11:38 pmSan Juan Luis Munoz Marin Intl
$370
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from Puerto Rico to San Diego 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 October 30, 2025.
Use the filters below to find and compare flights from Puerto Rico to San Diego that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

San JuanSan Diego

SJU - SAN

SJUSAN

San Juan Luis Munoz Marin Intl

Wed 4/15

11:45 am-8:12 pm

1 stop11h 27m

San Diego

Mon 4/27

9:45 pm-10:35 am

1 stop9h 50m

$334

San JuanSan Diego

SJU - SAN

SJUSAN

San Juan Luis Munoz Marin Intl

Mon 12/22

7:06 pm-11:47 pm

1 stop32h 41m

San Diego

Mon 1/5

7:21 pm-12:33 am

2 stops25h 12m

$344

San JuanSan Diego

SJU - SAN

SJUSAN

San Juan Luis Munoz Marin Intl

Sun 12/21

3:54 am-12:38 pm

2 stops12h 44m

San Diego

Mon 1/5

7:21 pm-4:19 pm

2 stops16h 58m

$352

San JuanSan Diego

SJU - SAN

SJUSAN

San Juan Luis Munoz Marin Intl

Sun 12/21

3:54 am-12:38 pm

2 stops12h 44m

San Diego

Sun 12/28

9:14 pm-11:38 pm

2 stops22h 24m

$369

San JuanSan Diego

SJU - SAN

SJUSAN

San Juan Luis Munoz Marin Intl

Sat 1/17

8:40 am-5:55 pm

1 stop13h 15m

San Diego

Thu 1/22

10:30 am-12:35 am

1 stop10h 05m

$374

San JuanSan Diego

SJU - SAN

SJUSAN

San Juan Luis Munoz Marin Intl

Sun 12/14

5:15 am-12:47 pm

1 stop11h 32m

San Diego

Thu 1/1

11:27 am-1:59 am

1 stop10h 32m

$396

San JuanSan Diego

SJU - SAN

SJUSAN

San Juan Luis Munoz Marin Intl

Thu 11/13

8:05 am-7:51 pm

1 stop15h 46m

San Diego

Sat 11/15

9:05 pm-9:52 am

1 stop32h 47m

$430

AguadillaSan Diego

BQN - SAN

BQNSAN

Aguadilla Borinquen

Wed 2/25

1:09 am-10:20 am

1 stop13h 11m

San Diego

Mon 3/2

7:05 am-11:57 pm

1 stop12h 52m

$438

San JuanSan Diego

SJU - SAN

SJUSAN

San Juan Luis Munoz Marin Intl

Wed 4/8

8:20 am-4:10 pm

2 stops10h 50m

San Diego

Tue 4/14

6:20 am-10:40 pm

1 stop13h 20m

$439

San JuanSan Diego

SJU - SAN

SJUSAN

San Juan Luis Munoz Marin Intl

Wed 2/11

2:05 am-10:20 am

1 stop12h 15m

San Diego

Sun 2/15

3:40 pm-6:11 am

1 stop10h 31m

$450

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 San Diego from

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

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 San Diego?

If you are unable to visit San Diego during the month of October, then departing from Puerto Rico during the month September is also very affordable. Most momondo users find prices during this month for around $448.

What is the cheapest day to depart on your flight to San Diego?

The cheapest day to depart from Puerto Rico to San Diego is on a Thursday. Travelers who choose to depart for San Diego on a Thursday will often find tickets for as low as $449. If your travel schedule is flexible, try to avoid departing on a Monday because tickets tend to average around $536. These prices are subject to change though, so be sure to set up a Price Alert for flights to San Diego.

What is the cheapest time of day to depart on your flight to San Diego?

The cheapest time of day to fly to San Diego is at noon when flights can be purchased for as low as $474. Flights in the morning are often more expensive with an average ticket price of $563.

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

You are more likely to see cheaper flights to San Diego from Puerto Rico when booking weeks ahead of your departure date. In general, you can expect to find flights to San Diego for around $499 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to San Diego from Puerto Rico for as low as $276 on momondo.

Can stopping save me money on Puerto Rico to San Diego flights?

You could potentially save up to 7% on your flight if you consider stops on a Puerto Rico to San Diego flight.

Cheap Puerto Rico to San Diego flight deals and tips

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

Direct flights

None
There are no direct flights from Puerto Rico to San Diego. There are no popular flight routes from Puerto Rico to San Diego.
Search flight deals

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

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

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

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

    The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Puerto Rico to San Diego Airport.

  • What documentation or ID do you need to fly to San Diego Airport?

    The travel and health documents you'll need for your trip to San Diego Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at San Diego Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

Best airlines flying from Puerto Rico to San Diego

Compare and see reviews for airlines that fly from Puerto Rico to San Diego with momondo
Airline
Rating
Free Cancellation
Price
American AirlinesPriceFrom $310Free CancellationRating
7.2
11,032 reviews
Search American Airlines flights
United AirlinesPriceFrom $341Free CancellationRating
7.4
8,998 reviews
Search United Airlines flights
DeltaPriceFrom $351Free CancellationRating
7.9
7,993 reviews
Search Delta flights
JetBluePriceFrom $398Free CancellationRating
7.2
2,906 reviews
Search JetBlue flights
SouthwestPriceFrom $408Free CancellationRating
8.0
4,242 reviews
Search Southwest flights
Alaska AirlinesPriceFrom $481Free CancellationRating
8.0
11,214 reviews
Search Alaska Airlines flights

Traveling to a place near San Diego?

Book flights to San Diego if you plan to visit one of these locations
Coronado
Chula Vista
El Cajon
Julian
National City
La Mesa
Imperial Beach
Poway
Borrego Springs
San Ysidro
Lemon Grove
Alpine
Santee

Why use momondo?

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

We help find the flight that best suits your needs, momondo compares prices from hundreds of airlines and travel agents and helps you filter them to find the best flight from Puerto Rico to San Diego for you.

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

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

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

momondo provides multiple filters to help you find the best flight to San Diego from Puerto Rico. Filter by price, airline, airports, cabin, aircraft, payment method, number of stops and more.

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

Yes. momondo can track prices for Puerto Rico to San Diego flights and alert you when they change. Perform a search to set up the price alert. All that is required is a valid email address.

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