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$124+ Cheap flights from Luis Munoz Marin Intl (SJU) to San Diego (SAN)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 2/19. Fares are subject to change and may not be available on all flights or dates of travel.
SJU — SAN
Feb 14 — Feb 211
Sat 2/14
Sat 2/21
1 adult, Economy
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Cheap flight deals from Luis Munoz Marin Intl to San Diego

Discover tips and strategies to find the most affordable flight options for your journey from Luis Munoz Marin Intl (SJU) to San Diego (SAN). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated January 15, 2026.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$242
(Kiwi.com)

One-way from

$124
(Trip.com)

Popular in

January

Cheapest in

October

Average price

$550
Provider with most accurate pricing for San Juan Luis Munoz Marin Intl-San Diego flight deals.
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Provider most trusted by Cheapflights users for San Juan Luis Munoz Marin Intl-San Diego flights.
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From San Juan Luis Munoz Marin Intl to San Diego
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One-way flight from San Juan Luis Munoz Marin Intl to San Diego
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Highest demand for flights based on searches. 4% potential increase in price ($24 potential increase over avg. RT price).
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Cheapest flight prices on average. 1% potential price decrease ($6 potential savings vs. average RT price).
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Average for round-trip flights in January 2026
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Find flight deals from Luis Munoz Marin Intl to San Diego

Cheapest flights from Luis Munoz Marin Intl to San Diego
Explore the most affordable flight options available from Luis Munoz Marin Intl to San Diego. Find the lowest fares from popular airlines and budget airlines, with prices last updated on January 15, 2026.

This Kiwi.com deal was found by Cheapflights users on 1/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 2/134:17 pm
SJU
-
SAN
2 stops35h 51m
Multiple Airlines
Sat 2/2111:21 am
SAN
-
SJU
1 stop20h 16m
Multiple Airlines
Deal found 1/15$242
This Kiwi.com deal was found by Cheapflights users on 1/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 2/137:44 pm
SJU
-
SAN
1 stop18h 42m
Multiple Airlines
Sun 2/226:25 am
SAN
-
SJU
2 stops38h 40m
Multiple Airlines
Deal found 1/15$244
This Kiwi.com deal was found by Cheapflights users on 1/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 2/207:44 pm
SJU
-
SAN
1 stop18h 42m
Multiple Airlines
Mon 2/236:25 am
SAN
-
SJU
2 stops28h 41m
Multiple Airlines
Deal found 1/14$269
This Kiwi.com deal was found by Cheapflights users on 1/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 2/207:44 pm
SJU
-
SAN
1 stop18h 42m
Multiple Airlines
Sat 2/2812:23 pm
SAN
-
SJU
2 stops33h 46m
Multiple Airlines
Deal found 1/14$283
This United Airlines deal was found by Cheapflights users on 1/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/161:40 pm
SJU
-
SAN
1 stop10h 42m
United Airlines
Sun 4/196:15 am
SAN
-
SJU
1 stop11h 23m
United Airlines
Deal found 1/12$296
This Southwest deal was found by Cheapflights users on 1/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 3/46:10 am
SJU
-
SAN
1 stop12h 10m
Southwest
Wed 3/186:20 am
SAN
-
SJU
1 stop13h 40m
Southwest
Deal found 1/13$312
This Delta deal was found by Cheapflights users on 1/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 4/171:15 pm
SJU
-
SAN
1 stop13h 40m
Delta
Mon 4/279:45 pm
SAN
-
SJU
1 stop11h 01m
Delta
Deal found 1/15$316
This American Airlines deal was found by Cheapflights users on 1/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 2/113:54 pm
SJU
-
SAN
1 stop20h 45m
American Airlines
Sun 2/1510:35 pm
SAN
-
SJU
1 stop12h 45m
American Airlines
Deal found 1/13$322
This Kiwi.com deal was found by Cheapflights users on 1/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 2/127:44 pm
SJU
-
SAN
1 stop17h 06m
Multiple Airlines
Mon 2/168:20 pm
SAN
-
SJU
2 stops35h 17m
Multiple Airlines
Deal found 1/14$335

Cheapflights Fare Finder

 
Customize your flight search to find flights from Luis Munoz Marin Intl 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, Cheapflights users made 2,558,603 searches. Data last updated January 15, 2026.
Use the filters below to find and compare flights from San Juan Luis Munoz Marin Intl Airport to San Diego that are best for you.

Fly from

Luis Munoz Marin Intl

Fly to

San Diego

Route

Depart

Return

Price

San JuanSan Diego

SJU - SAN

SJUSAN

San Juan Luis Munoz Marin Intl

Tue 3/10

3:22 pm-1:13 pm

2 stops24h 51m

San Diego

Tue 3/24

8:25 am-2:09 pm

2 stops26h 44m

$244

San JuanSan Diego

SJU - SAN

SJUSAN

San Juan Luis Munoz Marin Intl

Thu 4/16

1:40 pm-9:22 pm

1 stop10h 42m

San Diego

Sun 4/19

6:15 am-8:38 pm

1 stop11h 23m

$296

San JuanSan Diego

SJU - SAN

SJUSAN

San Juan Luis Munoz Marin Intl

Wed 3/4

6:10 am-2:20 pm

1 stop12h 10m

San Diego

Wed 3/18

6:20 am-11:00 pm

1 stop13h 40m

$312

San JuanSan Diego

SJU - SAN

SJUSAN

San Juan Luis Munoz Marin Intl

Thu 2/12

2:44 pm-9:07 pm

1 stop10h 23m

San Diego

Sun 2/15

6:30 am-11:40 pm

1 stop13h 10m

$316

San JuanSan Diego

SJU - SAN

SJUSAN

San Juan Luis Munoz Marin Intl

Fri 4/17

1:15 pm-11:55 pm

1 stop13h 40m

San Diego

Tue 4/28

10:10 pm-12:50 pm

1 stop11h 40m

$316

San JuanSan Diego

SJU - SAN

SJUSAN

San Juan Luis Munoz Marin Intl

Fri 4/17

1:15 pm-11:55 pm

1 stop13h 40m

San Diego

Fri 4/24

10:10 pm-12:50 pm

1 stop11h 40m

$316

San JuanSan Diego

SJU - SAN

SJUSAN

San Juan Luis Munoz Marin Intl

Thu 3/5

3:46 pm-10:00 pm

1 stop10h 14m

San Diego

Mon 3/9

10:30 pm-11:49 am

1 stop10h 19m

$316

San JuanSan Diego

SJU - SAN

SJUSAN

San Juan Luis Munoz Marin Intl

Fri 2/6

1:24 pm-11:09 pm

1 stop13h 45m

San Diego

Sun 2/8

10:25 pm-12:30 pm

1 stop10h 05m

$316

San JuanSan Diego

SJU - SAN

SJUSAN

San Juan Luis Munoz Marin Intl

Fri 4/17

1:15 pm-11:55 pm

1 stop13h 40m

San Diego

Thu 4/23

9:45 pm-11:46 am

1 stop11h 01m

$316

San JuanSan Diego

SJU - SAN

SJUSAN

San Juan Luis Munoz Marin Intl

Wed 2/25

7:33 am-2:18 pm

1 stop10h 45m

San Diego

Wed 3/18

3:38 pm-5:28 am

1 stop10h 50m

$316

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/14

Showing 1-10 of 23 results
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Compare providers for flights from Luis Munoz Marin Intl to San Diego

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Luis Munoz Marin Intl to San Diego in January.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy2 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*1 star
eDreamsPrice Accuracy3 starsTrust Score*3 stars
AranGrantPrice Accuracy2 starsTrust Score*3 stars
PricelinePrice Accuracy1 starTrust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on San Juan Luis Munoz Marin Intl Airport-San Diego flights, users find the pricing of eDreams to be most consistent on Cheapflights vs. eDreams Users can find the same prices on San Juan Luis Munoz Marin Intl Airport-San Diego flight deals on Cheapflights vs. eDreams >95% of the time. Price accuracy is based on data collected from San Juan Luis Munoz Marin Intl Airport-San Diego flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on San Juan Luis Munoz Marin Intl Airport-San Diego flights, Cheapflights users trust eDreams the most. eDreams has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for San Juan Luis Munoz Marin Intl Airport-San Diego flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from Luis Munoz Marin Intl to San Diego

Have a flexible travel schedule? Discover the best time to fly to San Diego from Luis Munoz Marin Intl with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from San Juan Luis Munoz Marin Intl Airport to San Diego

How far ahead should I book a flight from San Juan Luis Munoz Marin Intl Airport to San Diego?

Use this chart to determine the optimal time to book a round-trip flight from Luis Munoz Marin Intl to San Diego. Price data was last updated on January 9, 2026.

Booking 61 days in advance of your planned departure date is, on average, the best time to get cheap flights from San Juan Luis Munoz Marin Intl Airport to San Diego. The general trend is that the closer you book to the departure date, the more expensive your flight will be.

What is the cheapest month to book a flight from San Juan Luis Munoz Marin Intl Airport to San Diego?

Currently, August is the cheapest month in which you can book a flight from San Juan Luis Munoz Marin Intl Airport to San Diego (average of $220). Flying from San Juan Luis Munoz Marin Intl Airport to San Diego in April is currently the most expensive (average of $396). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

Reviews of airlines servicing San Diego

Get insights into the airlines that provide service to San Diego. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to San Diego. Reviews last updated January 15, 2026.
Read reviews from past customers who have flown Alaska Airlines, Delta, and United Airlines from San Juan Luis Munoz Marin Intl Airport to San Diego. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Alaska Airlines
8.0
Very good
11,721 reviews

Comfort

7.8

Overall

8.0

Entertainment

7.0

Food

7.1

Boarding

8.1

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Anonymous,Jan 2026

STS - LAX

Enjoyed staff assistance from ticking thru tsa , boarding and in the plane Couldn’t pick a seat except upgrading
Alaska Airlines
8.0
Very good
11,721 reviews
Alaska Airlines
8.0
Very good
11,721 reviews

Comfort

7.8

Overall

8.0

Entertainment

7.0

Food

7.1

Boarding

8.1

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Anonymous,Jan 2026

STS - LAX

Enjoyed staff assistance from ticking thru tsa , boarding and in the plane Couldn’t pick a seat except upgrading
Delta
7.9
Good
8,051 reviews
Alaska Airlines
8.0
Very good
11,721 reviews

Comfort

7.8

Overall

8.0

Entertainment

7.0

Food

7.1

Boarding

8.1

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Anonymous,Jan 2026

STS - LAX

Enjoyed staff assistance from ticking thru tsa , boarding and in the plane Couldn’t pick a seat except upgrading
United Airlines
7.4
Good
9,164 reviews
Alaska Airlines
8.0
Very good
11,721 reviews

Comfort

7.8

Overall

8.0

Entertainment

7.0

Food

7.1

Boarding

8.1

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Anonymous,Jan 2026

STS - LAX

Enjoyed staff assistance from ticking thru tsa , boarding and in the plane Couldn’t pick a seat except upgrading
American Airlines
7.2
Good
11,135 reviews
Alaska Airlines
8.0
Very good
11,721 reviews

Comfort

7.8

Overall

8.0

Entertainment

7.0

Food

7.1

Boarding

8.1

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Anonymous,Jan 2026

STS - LAX

Enjoyed staff assistance from ticking thru tsa , boarding and in the plane Couldn’t pick a seat except upgrading
JetBlue
7.2
Good
2,887 reviews
Alaska Airlines
8.0
Very good
11,721 reviews

Comfort

7.8

Overall

8.0

Entertainment

7.0

Food

7.1

Boarding

8.1

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Anonymous,Jan 2026

STS - LAX

Enjoyed staff assistance from ticking thru tsa , boarding and in the plane Couldn’t pick a seat except upgrading

Related info for your journey

Find useful and relevant information for your journey from Luis Munoz Marin Intl to San Diego. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly into for flights to San Diego from San Juan Luis Munoz Marin Intl?

    If you book a flight to San Diego from San Juan Luis Munoz Marin Intl, you will be flying to San Diego, which is the city’s only airport. San Diego (SAN) is located 2.6 mi from the center of San Diego. There are 0 flights from San Juan Luis Munoz Marin Intl to San Diego per day from 6 different airlines.

  • How long is the flight from San Juan Luis Munoz Marin Intl Airport to San Diego?

    There are many flights that can get you from San Juan Luis Munoz Marin Intl Airport to San Diego in 10h 42m. Fly via Frontier, United Airlines, or Southwest to get the fastest option. The distance between San Juan Luis Munoz Marin Intl Airport and San Diego is about 3304 mi. This flight may include one or multiple stops.

  • What are the cheapest airlines flying from San Juan Luis Munoz Marin Intl Airport to San Diego round-trip?

    According to our current data, American Airlines ($295), Delta ($295), and United Airlines ($295) offers the cheapest pricing from San Juan Luis Munoz Marin Intl Airport to San Diego. You may be able to fly from San Juan Luis Munoz Marin Intl Airport to San Diego for 39% less than the average price by searching for these airlines.

  • What are the cheapest airlines to fly from San Juan Luis Munoz Marin Intl Airport to San Diego one-way?

    To fly one-way, consider booking your trip with Spirit Airlines, which is currently one of the cheapest options available, starting at $96. JetBlue flights start at $146 while deals on American Airlines start at $148 one-way.

  • Can I find deals for flights from Luis Munoz Marin Intl to San Diego that include hotel bookings?

    Yes. In addition to deals on Luis Munoz Marin Intl to San Diego flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Luis Munoz Marin Intl to San Diego?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Luis Munoz Marin Intl to San Diego.

  • Can I find deals for business class flights from Luis Munoz Marin Intl to San Diego?

    Yes. Cheapflights offers flight deals from Luis Munoz Marin Intl to San Diego by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from San Juan Luis Munoz Marin Intl Airport to San Diego?

    Currently, August is the cheapest month in which you can book a flight from San Juan Luis Munoz Marin Intl Airport to San Diego (average of $220). Flying from San Juan Luis Munoz Marin Intl Airport to San Diego in April is currently the most expensive (average of $396). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Traveling to a place near San Diego?

Book flights to San Diego if you plan to visit one of these locations
El Cajon
Chula Vista
National City
Coronado
La Mesa
Poway
Julian
Lemon Grove

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Top 6 airlines flying from Luis Munoz Marin Intl to San Diego

Discover the top 6 airlines that operate flights from Luis Munoz Marin Intl to San Diego. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated January 15, 2026.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$295Average$524FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$295Average$480FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$295Average$475FlexibilityNo cancel feeOn-time71%
JetBlueCheapest$327Average$473FlexibilityNo cancel feeOn-time62%
Alaska AirlinesCheapest$377Average$481FlexibilityNo cancel feeOn-time75%
SouthwestCheapest$408Average$479FlexibilityNo cancel feeOn-time63%

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