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Cheap flights from San Jose, California to San Diego from £44

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 20/5. Fares are subject to change and may not be available on all flights or dates of travel.
SJC — SAN
19 Mai — 26 Mai1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from San Jose to San Diego

Enter your travel dates to find the best prices.

Cheapest flights from San Jose to San Diego
Explore the most affordable flight options available from San Jose to San Diego. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 19 April 2026.

Di 5/512:44
SJC
-
SAN
Nonstop1h 30m
Alaska Airlines
Di 12/512:33
SAN
-
SJC
Nonstop1h 35m
Alaska Airlines
Deal found 14/4£98
Di 5/510:21
SJC
-
SAN
Nonstop1h 32m
Alaska Airlines
Do 14/521:20
SAN
-
SJC
Nonstop1h 39m
Alaska Airlines
Deal found 14/4£101
Sa 16/510:55
SJC
-
SAN
1 stop7h 10m
Southwest
Mi 20/510:00
SAN
-
SJC
Nonstop1h 30m
Southwest
Deal found 16/4£109
Mi 27/511:15
SJC
-
SAN
Nonstop1h 25m
Southwest
Sa 30/508:50
SAN
-
SJC
2 stops6h 55m
Southwest
Deal found 16/4£112
Di 11/817:05
SJC
-
SAN
1 stop5h 50m
Delta
Di 18/810:00
SAN
-
SJC
1 stop6h 15m
Delta
Deal found 16/4£116
Di 11/807:00
SJC
-
SAN
1 stop3h 27m
Delta
Fr 14/806:15
SAN
-
SJC
1 stop4h 38m
Delta
Deal found 16/4£119
Do 7/509:53
SJC
-
SAN
1 stop5h 04m
Delta
Mo 11/506:15
SAN
-
SJC
1 stop4h 30m
Delta
Deal found 16/4£122
Fr 15/518:55
SJC
-
SAN
1 stop4h 10m
Southwest
Di 19/512:45
SAN
-
SJC
Nonstop1h 30m
Southwest
Deal found 17/4£123
Do 7/510:21
SJC
-
SAN
Nonstop1h 32m
Alaska Airlines
Di 12/510:25
SAN
-
SJC
Nonstop1h 38m
Alaska Airlines
Deal found 16/4£127
Sa 30/517:09
SJC
-
SAN
Nonstop1h 31m
Alaska Airlines
Sa 6/608:01
SAN
-
SJC
Nonstop1h 44m
Alaska Airlines
Deal found 15/4£128
Do 7/514:21
SJC
-
SAN
Nonstop1h 30m
Alaska Airlines
Do 14/510:47
SAN
-
SJC
Nonstop1h 35m
Alaska Airlines
Deal found 16/4£131

Find flight deals from San Jose to San Diego

Discover tips and strategies to find the most affordable flight options for your journey from San Jose (SJC) 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 19 April 2026.

Round-trip from

£98

One-way from

£44

Popular in

March

Cheapest in

June

Average price

£170

Good one-way deal

£184 or less
Alaska Airlines
  • Alaska Airlines
  • 5/5-12/5
  • Nonstop
  • 3h 05m total
  • San Jose to San Diego
Search Deals
Southwest
  • Southwest
  • 26/5
  • 1 total stop
  • 4h 30m total
  • San Jose to San Diego
Search Deals
Highest demand for flights based on searches. 12% potential increase in price (£16 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease (£4 potential savings vs. average return price).
Search Deals
Average for round-trip flights in April 2026
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Price to beat on a one-way flight from San Jose to San Diego.
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Cheapflights Fare Finder

 
Customise your flight search to find flights from San Jose 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 858,174 searches. Data last updated 19 April 2026.
Use the filters below to find and compare flights from San Jose to San Diego that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

San JoseSan Diego

SJC - SAN

SJCSAN

San Jose

Sa 9/5

10:55-18:05

1 stop7h 10m

San Diego

Di 12/5

20:30-22:00

Nonstop1h 30m

£109
Fastest return journey

San JoseSan Diego

SJC - SAN

SJCSAN

San Jose

Do 21/5

07:00-10:19

1 stop3h 19m

San Diego

Di 26/5

10:59-14:09

1 stop3h 10m

£119

San JoseSan Diego

SJC - SAN

SJCSAN

San Jose

Do 7/5

11:41-14:57

1 stop3h 16m

San Diego

Mo 11/5

18:45-22:14

1 stop3h 29m

£122

San JoseSan Diego

SJC - SAN

SJCSAN

San Jose

Sa 30/5

07:00-10:21

1 stop3h 21m

San Diego

Sa 6/6

15:15-19:28

1 stop4h 13m

£122

San JoseSan Diego

SJC - SAN

SJCSAN

San Jose

Mi 22/7

17:03-23:50

1 stop6h 47m

San Diego

So 26/7

10:54-17:12

1 stop6h 18m

£122

San JoseSan Diego

SJC - SAN

SJCSAN

San Jose

Mo 11/5

11:41-14:57

1 stop3h 16m

San Diego

Do 14/5

18:45-22:14

1 stop3h 29m

£122

San JoseSan Diego

SJC - SAN

SJCSAN

San Jose

Fr 10/7

17:03-23:49

1 stop6h 46m

San Diego

Mo 13/7

10:54-17:12

1 stop6h 18m

£122

San JoseSan Diego

SJC - SAN

SJCSAN

San Jose

Sa 23/5

17:59-23:15

1 stop5h 16m

San Diego

Di 26/5

10:59-14:09

1 stop3h 10m

£122

San JoseSan Diego

SJC - SAN

SJCSAN

San Jose

Sa 20/6

19:30-22:50

1 stop3h 20m

San Diego

Mi 24/6

06:40-13:15

2 stops6h 35m

£135

San JoseSan Diego

SJC - SAN

SJCSAN

San Jose

Sa 30/5

10:55-18:05

1 stop7h 10m

San Diego

Sa 6/6

08:50-10:20

Nonstop1h 30m

£138

Flights are sorted by cheapest return flights first.

Deals found on 14/4

Showing 1-10 of 22 resultsSorted by cheapest first
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Best time to book a flight from San Jose to San Diego

Have a flexible travel schedule? Discover the best time to fly to San Diego from San Jose with our price prediction graph.
Estimated return 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 Jose to San Diego

How far ahead should I book a flight from San Jose, California to San Diego?

Use this chart to determine the optimal time to book a return flight from San Jose to San Diego. Price data was last updated on 17 April 2026.

Booking 79 days in advance of your planned departure date is, on average, the best time to get cheap flights from San Jose, California 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 Jose, California to San Diego?

Currently, June is the cheapest month in which you can book a flight from San Jose, California to San Diego (average of £131). Flying from San Jose, California to San Diego in March is currently the most expensive (average of £203). 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 SJC to SAN?

Find hourly flight availability from San Jose 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 19 April 2026.

When flying from San Jose, California to San Diego, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

How much does it cost for a return flight from San Jose, California to San Diego?

Related info for your journey

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

  • How popular is this San Jose, California to San Diego flight route?

    This flight path from San Jose to San Diego was viewed by 1 users in the past month. Keep an eye out for changes in search interest prior to high and low season.

  • How long is the flight from San Jose, California to San Diego?

    For as low as £101, Southwest can have you in San Diego from San Jose, California in 1h 25m. San Jose, California and San Diego are separated by a distance of 417 mi. This flight may include one or multiple stops.

  • What are the most reliable airlines from San Jose, California to San Diego?

    Looking for the most reliable airlines to get you to your destination on time? Our data shows these are most likely to get you from San Jose, California to San Diego on time: Sun Country Air (100%), SkyWest Airlines (82%), Alaska Airlines (81%).

  • What are the cheapest flights from San Jose, California to San Diego?

    Looking at all options, your cheapest flight can be booked for £160. While the most popular route (San Jose - San Diego) can be booked for £435 on average, our data indicates £214 when flying from San Jose, California to San Diego.

  • Can I find deals for flights from San Jose to San Diego that include hotel bookings?

    Yes. In addition to deals on San Jose to San Diego flights, Cheapflights offers holiday packages that include both flights and hotel.

  • How can I find direct flights from San Jose to San Diego?

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

  • Can I find deals for business class flights from San Jose to San Diego?

    Yes. Cheapflights offers flight deals from San Jose 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 Jose, California to San Diego?

    Currently, June is the cheapest month in which you can book a flight from San Jose, California to San Diego (average of £131). Flying from San Jose, California to San Diego in March is currently the most expensive (average of £203). 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

Travelling to a place near San Diego?

Book flights to San Diego if you plan to visit one of these locations
Coronado
El Cajon

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Why should you use Cheapflights to find cheap flight tickets from San Jose to San Diego?

By finding flights from multiple airlines and providers at completely no cost, Cheapflights helps millions of users like you annually find the best flights to San Diego from San Jose.

Can Cheapflights find flights from San Jose to San Diego with no change fees?

Yes! Cheapflights helps users easily find flights from San Jose to San Diego with no change fees.

Can Cheapflights notify me if prices for flights from San Jose to San Diego become cheaper?

Yes, Cheapflights offers price alerts on San Jose to San Diego flights so you can book your travel at the perfect time. Price Alerts can be enabled by clicking the bell icon next to the flight deals above and providing your email address where you want to receive the alerts.

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