Cheap flights from San Jose to San Diego from £36

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 22/1. Fares are subject to change and may not be available on all flights or dates of travel.
SJC — SAN
12 Oct — 19 Oct1
1 adult
1 adult, Economy

Cheap 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 12 September 2025.

Round-trip from

£68

One-way from

£36

Popular in

July

Cheapest in

October

Average price

£83
Southwest
  • Southwest
  • 13/12-10/1
  • 1 total stop
  • 5h 55m total
  • San Jose to San Diego
Alaska Airlines
  • Alaska Airlines
  • 22/1
  • Nonstop
  • 1h 23m total
  • San Jose to San Diego
Highest demand for flights based on searches. 15% potential increase in price (£15 potential increase over avg. return price).
Cheapest flight prices on average. 3% potential price decrease (£3 potential savings vs. average return price).
Average for round-trip flights in September 2025

Find flight deals from San Jose to San Diego

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 12 September 2025.

Sat 13/1209:30SJC - SAN
1 stop4h 20mSouthwest
Sat 10/107:10SAN - SJC
Nonstop1h 35mSouthwest
Deal found 9/9£68
Thu 2/1006:30SJC - SAN
Nonstop1h 30mSouthwest
Sat 4/1007:50SAN - SJC
1 stop7h 10mSouthwest
Deal found 12/9£69
Wed 1/1006:15SJC - SAN
Nonstop1h 38mHawaiian Airlines
Wed 8/1020:59SAN - SJC
Nonstop1h 40mHawaiian Airlines
Deal found 10/9£70
Sat 4/1018:20SJC - SAN
Nonstop1h 25mSouthwest
Wed 8/1015:00SAN - SJC
Nonstop1h 30mSouthwest
Deal found 11/9£71
Wed 29/1017:45SJC - SAN
1 stop3h 40mSouthwest
Sat 1/1107:50SAN - SJC
1 stop7h 10mSouthwest
Deal found 10/9£72
Wed 1/1014:30SJC - SAN
Nonstop1h 25mSouthwest
Wed 8/1017:10SAN - SJC
1 stop5h 10mSouthwest
Deal found 10/9£73
Thu 30/1007:00SJC - SAN
Nonstop1h 31mHawaiian Airlines
Sat 1/1117:02SAN - SJC
Nonstop1h 38mHawaiian Airlines
Deal found 12/9£74
Sat 25/1017:20SJC - SAN
Nonstop1h 20mSouthwest
Mon 27/1020:30SAN - SJC
Nonstop1h 35mSouthwest
Deal found 10/9£75
Mon 13/1018:00SJC - SAN
Nonstop1h 25mSouthwest
Wed 15/1017:10SAN - SJC
1 stop3h 55mSouthwest
Deal found 11/9£76
Wed 8/1006:42SJC - SAN
Nonstop1h 36mAlaska Airlines
Thu 9/1008:11SAN - SJC
Nonstop1h 46mAlaska Airlines
Deal found 11/9£77
Fri 14/1122:00SJC - SAN
Nonstop1h 20mSouthwest
Mon 17/1120:00SAN - SJC
Nonstop1h 35mSouthwest
Deal found 11/9£79

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 12 September 2025.
Use the filters below to find and compare flights from San Jose to San Diego that are best for you.

Fly from

San Jose

Fly to

San Diego

Route

Depart

Return

Price

San JoseSan Diego

SJC - SAN

SJCSAN

San Jose

Tue 7/10

08:00-09:25

Nonstop1h 25m

San Diego

Tue 14/10

18:00-19:30

Nonstop1h 30m

£71

San JoseSan Diego

SJC - SAN

SJCSAN

San Jose

Thu 30/10

07:00-08:31

Nonstop1h 31m

San Diego

Sat 1/11

17:02-18:40

Nonstop1h 38m

£74

San JoseSan Diego

SJC - SAN

SJCSAN

San Jose

Mon 20/10

19:54-21:19

Nonstop1h 25m

San Diego

Wed 22/10

13:23-15:05

Nonstop1h 42m

£74

San JoseSan Diego

SJC - SAN

SJCSAN

San Jose

Thu 20/11

06:30-07:55

Nonstop1h 25m

San Diego

Sat 22/11

17:35-19:05

Nonstop1h 30m

£74

San JoseSan Diego

SJC - SAN

SJCSAN

San Jose

Mon 13/10

18:00-19:25

Nonstop1h 25m

San Diego

Wed 15/10

17:10-21:05

1 stop3h 55m

£76

San JoseSan Diego

SJC - SAN

SJCSAN

San Jose

Wed 3/12

15:30-16:55

Nonstop1h 25m

San Diego

Fri 5/12

20:00-21:35

Nonstop1h 35m

£76

San JoseSan Diego

SJC - SAN

SJCSAN

San Jose

Wed 22/10

13:30-14:50

Nonstop1h 20m

San Diego

Fri 24/10

15:30-17:00

Nonstop1h 30m

£76

San JoseSan Diego

SJC - SAN

SJCSAN

San Jose

Wed 19/11

06:35-11:45

1 stop5h 10m

San Diego

Sat 22/11

17:35-19:05

Nonstop1h 30m

£78

San JoseSan Diego

SJC - SAN

SJCSAN

San Jose

Sat 6/12

17:15-18:40

Nonstop1h 25m

San Diego

Sun 7/12

07:00-08:35

Nonstop1h 35m

£84

San JoseSan Diego

SJC - SAN

SJCSAN

San Jose

Wed 22/10

06:25-08:01

Nonstop1h 36m

San Diego

Mon 27/10

20:59-22:37

Nonstop1h 38m

£85

Flights are sorted by cheapest return flights first.

Deals found on 11/9

Showing 1-10 of 23 results
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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 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 29 August 2025.

The best time to book flights from San Jose to San Diego is 79 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.

What is the cheapest month to book a flight from San Jose to San Diego?

Currently, January is the cheapest month in which you can book a flight from San Jose to San Diego (average of £585). Flying from San Jose to San Diego in July is currently the most expensive (average of £920). 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 12 September 2025.

One of the essential ways to save on airfare from San Jose to San Diego is to remain as flexible as possible. Flights that are in the morning tend to be the most expensive. A flight at midday could potentially save you up to 32% on airfare.

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 to San Diego flight route?

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

    A quick flight from San Jose to San Diego can take about 1h 25m. Hawaiian Airlines provides one of the quickest options available for as low as £71. There are 417 mi between San Jose and San Diego. Most flights are nonstop.

  • What are the most reliable airlines from San Jose 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 to San Diego on time: SkyWest Airlines (81%), American Airlines (80%), Alaska Airlines (80%).

  • 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 to San Diego?

    Currently, January is the cheapest month in which you can book a flight from San Jose to San Diego (average of £585). Flying from San Jose to San Diego in July is currently the most expensive (average of £920). 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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Yes! Cheapflights helps users easily find flights from San Jose to San Diego with no change fees.

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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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