$138 Cheap United flights from San Juan to San Diego (SJU to SAN)

Find The Best Day To Fly from San Juan to San Diego

Amazing United SJU to SAN Flight Deals

The cheapest flights to San Diego Intl. found within the past 7 days were $275 round trip and $138 one way. Prices and availability subject to change. Additional terms may apply.

Thu, Aug 21 - Tue, Sep 9
SJU
San Juan
SAN
San Diego
$275 Roundtrip, found 4 hours ago
$275
Roundtrip
found 4 hours ago
Select United flight, departing Thu, Aug 21 from San Juan to San Diego, returning Tue, Sep 9, priced at $275 found 4 hours ago
Thu, Aug 21 - Tue, Sep 9
SJU
San Juan
SAN
San Diego
$279 Roundtrip, found 4 hours ago
$279
Roundtrip
found 4 hours ago
Select United flight, departing Thu, Aug 21 from San Juan to San Diego, returning Tue, Sep 9, priced at $279 found 4 hours ago
Wed, Oct 1 - Sat, Oct 4
SJU
San Juan
SAN
San Diego
$285 Roundtrip, found 22 hours ago
$285
Roundtrip
found 22 hours ago
Select United flight, departing Wed, Oct 1 from San Juan to San Diego, returning Sat, Oct 4, priced at $285 found 22 hours ago
Wed, Oct 1 - Sat, Oct 4
SJU
San Juan
SAN
San Diego
$288 Roundtrip, found 22 hours ago
$288
Roundtrip
found 22 hours ago
Select United flight, departing Wed, Oct 1 from San Juan to San Diego, returning Sat, Oct 4, priced at $288 found 22 hours ago
Thu, Aug 21 - Tue, Sep 9
SJU
San Juan
SAN
San Diego
$292 Roundtrip, found 4 hours ago
$292
Roundtrip
found 4 hours ago
Select United flight, departing Thu, Aug 21 from San Juan to San Diego, returning Tue, Sep 9, priced at $292 found 4 hours ago
Wed, Oct 1 - Sat, Oct 4
SJU
San Juan
SAN
San Diego
$295 Roundtrip, found 22 hours ago
$295
Roundtrip
found 22 hours ago
Select United flight, departing Wed, Oct 1 from San Juan to San Diego, returning Sat, Oct 4, priced at $295 found 22 hours ago

SAN From SJU Economy Coach Packages on Similar Airlines

Price found within the past 48 hours. Click for updated prices.
Little Italy Inn - Limited Service Apart Hotel

Little Italy Inn - Limited Service Apart Hotel

2.5 out of 5
Save 100% on your flight
per person
Sep 12 - Sep 19
found 1 day ago
Roundtrip non-stop flight included
San Juan (SJU) to San Diego (SAN)
The Sofia Hotel

The Sofia Hotel

3.5 out of 5
Save 100% on your flight
per person
Sep 5 - Sep 12
found 19 hours ago
Roundtrip non-stop flight included
San Juan (SJU) to San Diego (SAN)
Barsala City Villas

Barsala City Villas

2.5 out of 5
Save 100% on your flight
per person
Sep 12 - Sep 19
found 1 day ago
Roundtrip non-stop flight included
San Juan (SJU) to San Diego (SAN)
Don't see what you're looking for?
See all available trips from Luis Munoz Marin Intl. to San Diego Intl.
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Frequently asked questions

Can I catch a flight from SJU to San Diego Intl. Airport (SAN) right now?
Ensure you visit our Covid-19 Travel Advisor to learn if there are any present travel advice reports and quarantine requirements in place in San Diego Intl. Airport (SAN) when flying in from SJU.
What terminal is United Airlines at Luis Munoz Marin Intl. Airport (SJU)?
The information printed on boarding passes can differ from airline to airline. If you're traveling from Luis Munoz Marin Intl. Airport (SJU) to San Diego Airport with United Airlines and you can't find your terminal details, contact the airline.
Are there United Airlines non-stop flights from SJU to SAN?
If you're considering flying with United Airlines from Isla Verde Intl. Airport to San Diego Airport, you'll have to make at least one stop. While you're waiting for your connecting flight, use the time to enjoy a bite to eat or go for a wander.
How long is a United Airlines flight from SJU to SAN?
Wander wisely from the minute you take your seat on the plane. With a United Airlines flight from SJU to SAN lasting an average of 10 hours and 33 minutes, it's smart to have some coping strategies to depend on. A travel pillow and a spare set of clothes should be among the basics packed away in your hand luggage.
How many direct and indirect flights does United Airlines fly from SJU to SAN?
When jetting from SJU to SAN, you'll find there are around 3 United Airlines daily flights to select from.
If I am not able to travel due to COVID-19, can I change my booking to a later date?
For more info about changing your flight to San Diego Intl. Airport (SAN), please visit our Customer Service Portal.
What is the best day to buy a plane ticket?
This just in! Airfares offered on Thursdays tend to be the cheapest, according to flight demand on Travelocity in 2021. Tuesday and Wednesday prices are also good, but you may want to prepare your budget if booking during the weekend, as data shows that is when prices are generally at their highest.
What are the cheapest days to fly?
Frequent travelers may already know this, but earlier in the week can be the cheapest time to fly. In 2021, flights departing on a Monday were generally the cheapest of the week, whereas you may pay a premium for weekend flights when demand is usually high. On average, tickets were most expensive for Saturday departures, so if you need to fly out on a weekend, you might look for deals ahead of time.
How far in advance can you book a flight?
Trying to figure out how early you should book your flight? It's possible to start comparing international airfares on Travelocity up to 12 months in advance. However, it does depend on the carrier as not all airlines release their prices that far out. According to our 2021 flight demand trends, last minute planners can still bag a bargain with some of the cheapest fares appearing 0-2 weeks prior to their travel dates.*According to flight demand on Travelocity.com from January to December 2021. Savings are subject to change based on departure location, date and destination.
United Airports
Hop on a(n) United flight today by flying to many destinations out of these domestic and international airports:
Airport code
Country
Airport name
Number of flights
ORDUSAO'Hare Intl.227
DENUSADenver Intl.226
IAHUSAGeorge Bush Intercontinental136
IADUSAWashington Dulles Intl.100
SFOUSASan Francisco Intl.64
LAXUSALos Angeles Intl.23
EWRUSALiberty Intl.20
FRADEUFrankfurt Intl.19
NRTJPNNarita Intl.19
PEKCHNCapital Intl.16

Travelers ❤️ these 🏨 after their flight to San Diego

Sheraton San Diego Resort

Sheraton San Diego Resort

4 out of 5
1380 Harbor Island Dr, San Diego, CA
A marina, 5 restaurants, and 3 outdoor pools are all featured at this smoke-free hotel. Traveling on business? Take advantage of the business center, free WiFi ...
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Wyndham San Diego Bayside

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4 out of 5
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This smoke-free hotel includes 2 restaurants, an outdoor pool, and a gym. Traveling on business? Take advantage of the business center, express check-out, and ...
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"Great property. Convenient to walk and go to places"

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Handlery Hotel

Handlery Hotel

3.5 out of 5
950 Hotel Cir N, San Diego, CA
This smoke-free hotel includes 2 restaurants, an outdoor pool, and a hot tub. Traveling on business? Take advantage of the 24-hour business center and free WiFi ...
8/10 Very Good! (1,881 reviews)
"Really enjoyed our stay. Great service and very clean"

Reviewed on Jul 15, 2025

Handlery Hotel
Lowest nightly price found within the past 24 hours based on a 1 night stay for 2 adults. Prices and availability subject to change. Additional terms may apply.
*Price based on the lowest price found within past 24 hours and based upon one night stay for two adults over the next thirty days. Prices and availability subject to change. Additional terms may apply.