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$96+ 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 1/12. Fares are subject to change and may not be available on all flights or dates of travel.
SJU — SAN
Jan 11 — Jan 181
Sun 1/11
Sun 1/18
1 adult, Economy
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Find cheap flights from Luis Munoz Marin Intl to San Diego with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

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3. Compare prices and book

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Cheapflights Tip: The best prices from San Juan Luis Munoz Marin Intl to San Diego are usually found in October or September, booked 17 days in advance, depart on a Thursday or Tuesday and return on a Saturday

Cheap 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 December 12, 2025.

This Delta deal was found by Cheapflights users on 12/9. 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.
Sun 12/213:44 pmSJU - SAN
1 stop10h 25mDelta
Thu 1/16:15 amSAN - SJU
1 stop13h 05mDelta
Deal found 12/9$445
This eDestinos deal was found by Cheapflights users on 12/10. 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 eDestinos is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/1411:05 amSJU - SAN
2 stops29h 33mFrontier
Thu 1/16:25 amSAN - SJU
2 stops46h 33mFrontier
Deal found 12/10$460
This American Airlines deal was found by Cheapflights users on 12/11. 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 12/312:35 pmSJU - SAN
1 stop11h 13mAmerican Airlines
Sun 1/1110:45 pmSAN - SJU
1 stop14h 18mAmerican Airlines
Deal found 12/11$470
This Delta deal was found by Cheapflights users on 12/10. 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.
Sun 12/143:10 pmSJU - SAN
2 stops12h 49mDelta
Thu 1/16:15 amSAN - SJU
1 stop13h 05mDelta
Deal found 12/10$510
This eDestinos deal was found by Cheapflights users on 12/10. 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 eDestinos is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/199:49 amSJU - SAN
2 stops30h 49mFrontier
Sun 12/281:06 pmSAN - SJU
2 stops37h 28mFrontier
Deal found 12/10$514
This eDestinos deal was found by Cheapflights users on 12/11. 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 eDestinos is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/1412:00 pmSJU - SAN
3 stops30h 10mMultiple Airlines
Thu 1/18:14 pmSAN - SJU
2 stops24h 40mMultiple Airlines
Deal found 12/11$523
This Delta deal was found by Cheapflights users on 12/11. 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.
Tue 12/233:30 pmSJU - SAN
2 stops12h 29mDelta
Sun 12/2810:30 pmSAN - SJU
1 stop9h 26mDelta
Deal found 12/11$549
This United Airlines deal was found by Cheapflights users on 12/10. 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.
Wed 12/247:45 amSJU - SAN
2 stops13h 49mUnited Airlines
Sun 12/285:10 pmSAN - SJU
1 stop9h 01mUnited Airlines
Deal found 12/10$564
This American Airlines deal was found by Cheapflights users on 12/10. 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.
Fri 12/196:44 amSJU - SAN
1 stop10h 00mAmerican Airlines
Sun 12/284:38 pmSAN - SJU
1 stop8h 56mAmerican Airlines
Deal found 12/10$610
This eDestinos deal was found by Cheapflights users on 12/10. 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 eDestinos is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/163:55 amSJU - SAN
2 stops16h 25mMultiple Airlines
Sat 12/207:21 pmSAN - SJU
3 stops38h 13mMultiple Airlines
Deal found 12/10$611
This American Airlines deal was found by Cheapflights users on 12/11. 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.
Fri 12/267:00 amSJU - SAN
1 stop11h 34mAmerican Airlines
Mon 1/510:44 pmSAN - SJU
1 stop10h 53mAmerican Airlines
Deal found 12/11$620

Find 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 December 12, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$295
(United Airlines)

One-way from

$96
(Kiwi.com)

Popular in

February

Cheapest in

October

Average price

$500
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
Search Deals
Highest demand for flights based on searches. 2% potential increase in price ($13 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease ($6 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in December 2025
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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 December 12, 2025.
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

Thu 1/29

3:55 pm-10:45 pm

1 stop10h 50m

San Diego

Mon 2/2

7:03 pm-1:06 pm

2 stops14h 03m

$295

San JuanSan Diego

SJU - SAN

SJUSAN

San Juan Luis Munoz Marin Intl

Wed 2/25

3:46 pm-11:40 pm

2 stops11h 54m

San Diego

Sun 3/1

6:15 am-9:26 pm

2 stops11h 11m

$325

San JuanSan Diego

SJU - SAN

SJUSAN

San Juan Luis Munoz Marin Intl

Tue 2/3

1:58 pm-8:36 pm

1 stop10h 38m

San Diego

Tue 2/17

10:05 pm-1:00 pm

1 stop10h 55m

$335

San JuanSan Diego

SJU - SAN

SJUSAN

San Juan Luis Munoz Marin Intl

Wed 3/4

5:40 am-1:20 pm

2 stops11h 40m

San Diego

Tue 3/10

9:45 am-12:15 am

2 stops11h 30m

$361

San JuanSan Diego

SJU - SAN

SJUSAN

San Juan Luis Munoz Marin Intl

Tue 2/3

5:40 am-2:50 pm

2 stops13h 10m

San Diego

Tue 2/17

9:00 am-12:40 am

2 stops11h 40m

$361

San JuanSan Diego

SJU - SAN

SJUSAN

San Juan Luis Munoz Marin Intl

Tue 2/17

5:35 am-3:00 pm

2 stops13h 25m

San Diego

Tue 2/24

10:30 am-12:35 am

1 stop10h 05m

$378

San JuanSan Diego

SJU - SAN

SJUSAN

San Juan Luis Munoz Marin Intl

Thu 1/29

3:46 pm-9:56 pm

1 stop10h 10m

San Diego

Mon 2/2

7:00 am-12:36 am

2 stops13h 36m

$385

San JuanSan Diego

SJU - SAN

SJUSAN

San Juan Luis Munoz Marin Intl

Tue 2/10

2:05 am-10:04 am

1 stop11h 59m

San Diego

Sun 2/15

3:40 pm-6:11 am

1 stop10h 31m

$385

San JuanSan Diego

SJU - SAN

SJUSAN

San Juan Luis Munoz Marin Intl

Thu 2/12

2:15 pm-8:37 pm

1 stop10h 22m

San Diego

Sun 2/15

6:45 pm-1:04 pm

2 stops14h 19m

$415

San JuanSan Diego

SJU - SAN

SJUSAN

San Juan Luis Munoz Marin Intl

Mon 2/9

7:00 am-7:45 pm

1 stop16h 45m

$164

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/9

Showing 1-10 of 19 results
1
2

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 December.
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 December 5, 2025.

Booking 17 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 $413). 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.

What is the cheapest time of day to fly from SJU to SAN?

Find hourly flight availability from Luis Munoz Marin Intl to San Diego. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated December 12, 2025.

It’s typically best to fly out from San Juan Luis Munoz Marin Intl Airport to San Diego at noon. Doing so could potentially save you 15% on the flight price compared to flying in the morning, which is usually more expensive.

What is the cheapest day to fly from San Juan Luis Munoz Marin Intl Airport to San Diego?

Use this chart to determine the cheapest time to fly round-trip from Luis Munoz Marin Intl to San Diego. Price data was last updated on December 16, 2024.

Travelers seeking maximum savings on their San Juan Luis Munoz Marin Intl Airport to San Diego flight should consider departing on Friday evenings when fares are most often at their lowest. Sunday afternoons flights should be avoided if possible as fares are typically the most expensive at this time.

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 December 12, 2025.
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
11,431 reviews

Crew

8.5

Food

7.1

Comfort

7.8

Entertainment

7.0

Boarding

8.1

Overall

8.0

Reviews

1 / 20
6.0
Good

Hannah,Aug 2025

SFO - SAN

Ticket said TSA pre check, but then the TSA agent said that Alaska Airlines has not actually entered the pre check information for the ticket, so I had to use regular security. During boarding, I have a disability and need to board early. The Alaska Airlines employee announced disability boarding, but then immediately announced 2 other groups to board, so I still had to fight the crowds. On the plane, the stewardess was brusk and rude. Seats were very uncomfortable, especially on lower back.
Alaska Airlines
8.0
Very good
11,431 reviews
Alaska Airlines
8.0
Very good
11,431 reviews

Crew

8.5

Food

7.1

Comfort

7.8

Entertainment

7.0

Boarding

8.1

Overall

8.0

Reviews

1 / 20
6.0
Good

Hannah,Aug 2025

SFO - SAN

Ticket said TSA pre check, but then the TSA agent said that Alaska Airlines has not actually entered the pre check information for the ticket, so I had to use regular security. During boarding, I have a disability and need to board early. The Alaska Airlines employee announced disability boarding, but then immediately announced 2 other groups to board, so I still had to fight the crowds. On the plane, the stewardess was brusk and rude. Seats were very uncomfortable, especially on lower back.
Delta
7.9
Good
8,009 reviews
Alaska Airlines
8.0
Very good
11,431 reviews

Crew

8.5

Food

7.1

Comfort

7.8

Entertainment

7.0

Boarding

8.1

Overall

8.0

Reviews

1 / 20
6.0
Good

Hannah,Aug 2025

SFO - SAN

Ticket said TSA pre check, but then the TSA agent said that Alaska Airlines has not actually entered the pre check information for the ticket, so I had to use regular security. During boarding, I have a disability and need to board early. The Alaska Airlines employee announced disability boarding, but then immediately announced 2 other groups to board, so I still had to fight the crowds. On the plane, the stewardess was brusk and rude. Seats were very uncomfortable, especially on lower back.
United Airlines
7.4
Good
9,095 reviews
Alaska Airlines
8.0
Very good
11,431 reviews

Crew

8.5

Food

7.1

Comfort

7.8

Entertainment

7.0

Boarding

8.1

Overall

8.0

Reviews

1 / 20
6.0
Good

Hannah,Aug 2025

SFO - SAN

Ticket said TSA pre check, but then the TSA agent said that Alaska Airlines has not actually entered the pre check information for the ticket, so I had to use regular security. During boarding, I have a disability and need to board early. The Alaska Airlines employee announced disability boarding, but then immediately announced 2 other groups to board, so I still had to fight the crowds. On the plane, the stewardess was brusk and rude. Seats were very uncomfortable, especially on lower back.
American Airlines
7.2
Good
11,049 reviews
Alaska Airlines
8.0
Very good
11,431 reviews

Crew

8.5

Food

7.1

Comfort

7.8

Entertainment

7.0

Boarding

8.1

Overall

8.0

Reviews

1 / 20
6.0
Good

Hannah,Aug 2025

SFO - SAN

Ticket said TSA pre check, but then the TSA agent said that Alaska Airlines has not actually entered the pre check information for the ticket, so I had to use regular security. During boarding, I have a disability and need to board early. The Alaska Airlines employee announced disability boarding, but then immediately announced 2 other groups to board, so I still had to fight the crowds. On the plane, the stewardess was brusk and rude. Seats were very uncomfortable, especially on lower back.
JetBlue
7.2
Good
2,898 reviews
Alaska Airlines
8.0
Very good
11,431 reviews

Crew

8.5

Food

7.1

Comfort

7.8

Entertainment

7.0

Boarding

8.1

Overall

8.0

Reviews

1 / 20
6.0
Good

Hannah,Aug 2025

SFO - SAN

Ticket said TSA pre check, but then the TSA agent said that Alaska Airlines has not actually entered the pre check information for the ticket, so I had to use regular security. During boarding, I have a disability and need to board early. The Alaska Airlines employee announced disability boarding, but then immediately announced 2 other groups to board, so I still had to fight the crowds. On the plane, the stewardess was brusk and rude. Seats were very uncomfortable, especially on lower back.

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 38m. Fly via Delta, United Airlines, or American Airlines 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 ($341) 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. Frontier flights start at $144 while deals on United 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 $413). 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
Coronado
La Mesa
Poway
Lemon Grove
Julian
National City

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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 December 12, 2025.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$295Average$484FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$341Average$478FlexibilityNo cancel feeOn-time69%
DeltaCheapest$351Average$537FlexibilityNo cancel feeOn-timeN/A
Alaska AirlinesCheapest$377Average$510FlexibilityNo cancel feeOn-time75%
SouthwestCheapest$408Average$479FlexibilityNo cancel feeOn-time63%
JetBlueCheapest$422Average$483FlexibilityNo cancel feeOn-time62%

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