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Cheap flights from San Diego to San Juan from $148

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 San Juan departing on 1/13. 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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Cheap round-trip flights

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Delta Logo
6:55 pm - 1:05 pmSAN-SJU
14h 10m2 stops
Delta Logo
3:55 pm - 10:47 pmSJU-SAN
10h 52m1 stop
$295Delta
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Tue, Feb 3 - Tue, Feb 10
United Airlines Logo
8:37 pm - 1:17 pmSAN-SJU
12h 40m2 stops
United Airlines Logo
8:10 am - 3:40 pmSJU-SAN
11h 30m1 stop
$329United Airlines
Find Deal
Mon, Jan 12 - Tue, Jan 20
American Airlines Logo
6:15 am - 9:39 pmSAN-SJU
11h 24m2 stops
American Airlines Logo
6:00 am - 3:03 pmSJU-SAN
13h 03m2 stops
$334American Airlines
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Tue, Jan 27 - Sat, Jan 31
American Airlines Logo
9:52 pm - 4:19 pmSAN-SJU
14h 27m1 stop
American Airlines Logo
5:35 am - 6:29 pmSJU-SAN
15h 54m1 stop
$335American Airlines
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Wed, Mar 4 - Thu, Mar 12
Multiple Airlines Logo
6:25 am - 12:33 amSAN-SJU
14h 08m1 stop
Multiple Airlines Logo
7:01 pm - 7:15 pmSJU-SAN
28h 14m2 stops
$339Multiple Airlines
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Wed, Dec 31 - Sun, Jan 11
United Airlines Logo
10:15 pm - 1:17 pmSAN-SJU
11h 02m1 stop
United Airlines Logo
2:05 am - 10:20 amSJU-SAN
12h 15m1 stop
$342United Airlines
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Fri, Feb 20 - Mon, Mar 2
Southwest Logo
10:10 am - 12:35 amSAN-SJU
10h 25m2 stops
Southwest Logo
8:40 am - 5:55 pmSJU-SAN
13h 15m1 stop
$360Southwest
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Wed, Jan 14 - Sat, Jan 24
Southwest Logo
8:30 am - 11:50 pmSAN-SJU
11h 20m1 stop
Southwest Logo
6:40 am - 7:25 pmSJU-SAN
15h 45m1 stop
$382Southwest
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Thu, Mar 5 - Tue, Mar 10
Frontier Logo
2:10 pm - 1:24 amSAN-SJU
55h 14m2 stops
Frontier Logo
7:01 pm - 11:51 pmSJU-SAN
32h 50m1 stop
$426Frontier
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Mon, Dec 29 - Sat, Jan 10
JetBlue Logo
9:05 pm - 11:25 amSAN-SJU
10h 20m1 stop
JetBlue Logo
7:25 pm - 12:48 pmSJU-SAN
21h 23m1 stop
$432JetBlue
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Mon, Nov 17 - Tue, Nov 18

Southwest flights from San Diego to San Juan Luis Munoz Marin Intl Airport

Our best Southwest deals on San Diego to San Juan Luis Munoz Marin Intl Airport flight tickets
Southwest
Jan 14
SAN10:10 amSan Diego
10h 25m
2 stops
SJU12:35 amSan Juan Luis Munoz Marin Intl
Jan 24
SJU8:40 amSan Juan Luis Munoz Marin Intl
13h 15m
1 stop
SAN5:55 pmSan Diego
$360
Find similar
Southwest
Mar 5
SAN8:30 amSan Diego
11h 20m
1 stop
SJU11:50 pmSan Juan Luis Munoz Marin Intl
Mar 10
SJU6:40 amSan Juan Luis Munoz Marin Intl
15h 45m
1 stop
SAN7:25 pmSan Diego
$382
Find similar
Southwest
Jan 14
SAN10:20 amSan Diego
10h 15m
2 stops
SJU12:35 amSan Juan Luis Munoz Marin Intl
Jan 22
SJU5:40 amSan Juan Luis Munoz Marin Intl
11h 55m
2 stops
SAN1:35 pmSan Diego
$399
Find similar

United Airlines flights from San Diego to San Juan Luis Munoz Marin Intl Airport

Our best United Airlines deals on San Diego to San Juan Luis Munoz Marin Intl Airport flight tickets
United Airlines
Jan 12
SAN8:37 pmSan Diego
12h 40m
2 stops
SJU1:17 pmSan Juan Luis Munoz Marin Intl
Jan 20
SJU8:10 amSan Juan Luis Munoz Marin Intl
11h 30m
1 stop
SAN3:40 pmSan Diego
$329
Find similar
United Airlines
Feb 20
SAN10:15 pmSan Diego
11h 02m
1 stop
SJU1:17 pmSan Juan Luis Munoz Marin Intl
Mar 2
SJU2:05 amSan Juan Luis Munoz Marin Intl
12h 15m
1 stop
SAN10:20 amSan Diego
$342
Find similar
United Airlines
Apr 21
SAN10:51 amSan Diego
10h 03m
1 stop
SJU11:54 pmSan Juan Luis Munoz Marin Intl
Apr 27
SJU1:05 amSan Juan Luis Munoz Marin Intl
12h 15m
1 stop
SAN10:20 amSan Diego
$348
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momondo Fare Finder

 
Customize your flight search to find flights from San Diego to San Juan Luis Munoz Marin Intl Airport 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 November 3, 2025.
Use the filters below to find and compare flights from San Diego to San Juan Luis Munoz Marin Intl Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

San DiegoSan Juan

SAN - SJU

SANSJU

San Diego

Tue 2/3

6:55 pm-1:05 pm

2 stops14h 10m

San Juan Luis Munoz Marin Intl

Tue 2/10

3:55 pm-10:47 pm

1 stop10h 52m

$295

San DiegoSan Juan

SAN - SJU

SANSJU

San Diego

Mon 1/12

8:37 pm-1:17 pm

2 stops12h 40m

San Juan Luis Munoz Marin Intl

Tue 1/20

8:10 am-3:40 pm

1 stop11h 30m

$329

San DiegoSan Juan

SAN - SJU

SANSJU

San Diego

Tue 1/27

6:15 am-9:39 pm

2 stops11h 24m

San Juan Luis Munoz Marin Intl

Sat 1/31

6:00 am-3:03 pm

2 stops13h 03m

$334

San DiegoSan Juan

SAN - SJU

SANSJU

San Diego

Wed 3/4

9:52 pm-4:19 pm

1 stop14h 27m

San Juan Luis Munoz Marin Intl

Thu 3/12

5:35 am-6:29 pm

1 stop15h 54m

$335

San DiegoSan Juan

SAN - SJU

SANSJU

San Diego

Wed 12/31

6:25 am-12:33 am

1 stop14h 08m

San Juan Luis Munoz Marin Intl

Sun 1/11

7:01 pm-7:15 pm

2 stops28h 14m

$339

San DiegoSan Juan

SAN - SJU

SANSJU

San Diego

Fri 2/20

10:15 pm-1:17 pm

1 stop11h 02m

San Juan Luis Munoz Marin Intl

Mon 3/2

2:05 am-10:20 am

1 stop12h 15m

$342

San DiegoSan Juan

SAN - SJU

SANSJU

San Diego

Wed 1/14

10:10 am-12:35 am

2 stops10h 25m

San Juan Luis Munoz Marin Intl

Sat 1/24

8:40 am-5:55 pm

1 stop13h 15m

$360

San DiegoSan Juan

SAN - SJU

SANSJU

San Diego

Thu 3/5

8:30 am-11:50 pm

1 stop11h 20m

San Juan Luis Munoz Marin Intl

Tue 3/10

6:40 am-7:25 pm

1 stop15h 45m

$382

San DiegoSan Juan

SAN - SJU

SANSJU

San Diego

Mon 12/29

2:10 pm-1:24 am

2 stops55h 14m

San Juan Luis Munoz Marin Intl

Sat 1/10

7:01 pm-11:51 pm

1 stop32h 50m

$426

San DiegoSan Juan

SAN - SJU

SANSJU

San Diego

Mon 11/17

9:05 pm-11:25 am

1 stop10h 20m

San Juan Luis Munoz Marin Intl

Tue 11/18

7:25 pm-12:48 pm

1 stop21h 23m

$432

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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How to get the cheapest flight ticket from San Diego to San Juan Luis Munoz Marin Intl Airport

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 Juan Luis Munoz Marin Intl Airport?

If you aren’t able to travel to San Juan Luis Munoz Marin Intl Airport during the month of January, then flying in September is also cheap. Prices for this month can be found on momondo for an average of $452.

What is the cheapest day to depart on your flight to San Juan Luis Munoz Marin Intl Airport?

On average, the least expensive day to fly to San Juan Luis Munoz Marin Intl Airport from San Diego is on a Saturday. momondo users have found tickets for Saturday departures for as low as $504. However, this price may fluctuate depending on the airline, the season, and holidays. On the other hand, Sunday is the most expensive day to depart from San Diego because it is more convenient for both business and leisure travelers. As a result, prices tend to be around $571.

What is the cheapest time of day to depart on your flight to San Juan Luis Munoz Marin Intl Airport?

The cheapest time of day to fly to San Juan Luis Munoz Marin Intl Airport is at noon when flights can be purchased for as low as $485. Flights in the afternoon are often more expensive with an average ticket price of $569.

How far in advance should I book a flight to San Juan Luis Munoz Marin Intl Airport?

You are more likely to see cheaper flights to San Juan Luis Munoz Marin Intl Airport from San Diego when booking weeks ahead of your departure date. In general, you can expect to find flights to San Juan Luis Munoz Marin Intl Airport for around $528 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to San Juan Luis Munoz Marin Intl Airport from San Diego for as low as $434 on momondo.

Can stopping save me money on San Diego to San Juan Luis Munoz Marin Intl Airport flights?

You could potentially save up to 10% on your flight if you consider stops on a San Diego to San Juan Luis Munoz Marin Intl Airport flight.

How have San Diego to San Juan Luis Munoz Marin Intl Airport flight prices changed over time?

As of November 2025, prices for San Diego to San Juan Luis Munoz Marin Intl Airport flights are approximately 4% more expensive when compared to flights at the same time last year.

When to book flights from San Diego to San Juan Luis Munoz Marin Intl Airport

Are you open to changing your travel dates? Check out the ideal times to fly from San Diego to San Juan Luis Munoz Marin Intl Airport according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap San Diego to San Juan Luis Munoz Marin Intl Airport (SAN to SJU) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from San Diego to San Juan Luis Munoz Marin Intl Airport

Direct flights

None
There are no direct flights from San Diego to San Juan Luis Munoz Marin Intl Airport. There are no popular flight routes from San Diego to San Juan Luis Munoz Marin Intl Airport.
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  • How far is San Diego to San Juan Luis Munoz Marin Intl by plane?

    The straight-line distance from San Diego to San Juan Luis Munoz Marin Intl is 3301.1 mi. Typically, this will take 9h 26m by plane in normal conditions.

  • When did momondo last update prices for flights from San Diego Airport to San Juan Luis Munoz Marin Intl Airport?

    Prices for flights from San Diego Airport to San Juan Luis Munoz Marin Intl Airport refresh daily.

  • How many operators does momondo search for flights from San Diego Airport to San Juan Luis Munoz Marin Intl Airport?

  • How old do you have to be to fly from San Diego Airport to San Juan Luis Munoz Marin Intl 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 San Diego Airport to San Juan Luis Munoz Marin Intl Airport.

  • What documentation or ID do you need to fly to San Juan Luis Munoz Marin Intl Airport?

    The required travel and health documents for your San Juan Luis Munoz Marin Intl Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at San Juan Luis Munoz Marin Intl Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

  • What is the most popular airline from San Diego to San Juan Luis Munoz Marin Intl Airport?

Best airlines flying from San Diego to San Juan Luis Munoz Marin Intl Airport

Compare and see reviews for airlines that fly from San Diego to San Juan Luis Munoz Marin Intl Airport with momondo
Airline
Rating
Free Cancellation
Price
Spirit AirlinesPriceFrom $125Free CancellationRating
6.3
8,113 reviews
Search Spirit Airlines flights
FrontierPriceFrom $225Free CancellationRating
5.8
3,117 reviews
Search Frontier flights
DeltaPriceFrom $278Free CancellationRating
7.9
8,001 reviews
Search Delta flights
United AirlinesPriceFrom $296Free CancellationRating
7.4
8,996 reviews
Search United Airlines flights
JetBluePriceFrom $314Free CancellationRating
7.2
2,906 reviews
Search JetBlue flights
American AirlinesPriceFrom $320Free CancellationRating
7.2
11,035 reviews
Search American Airlines flights
SouthwestPriceFrom $382Free CancellationRating
8.0
4,238 reviews
Search Southwest flights
Alaska AirlinesPriceFrom $478Free CancellationRating
8.0
11,235 reviews
Search Alaska Airlines flights

Traveling to a place near San Juan?

Book flights to San Juan if you plan to visit one of these locations
Carolina
Fajardo
Dorado
Luquillo
Caguas
Humacao
Rio Grande
Bayamón

Why use momondo?

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

momondo collates all your flight options in one place and lets you filter them to find the perfect flight from San Diego to San Juan. momondo saves you time and could save you money on your trip.

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

momondo does allow users to show only those flights to San Juan from San Diego which offer a flexible booking policy as well as other useful filters and features.

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

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 San Diego to San Juan.

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

If you are simply researching potential flights to San Juan, momondo offers a useful price alert feature which will track prices for flights to San Juan from San Diego and alert you when they change.

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