Route guide · 417 miles
Cheap Flights from San Jose to San Diego
SJC → SAN · Nonstop 1h 21m · Live round-trip fares
The run from San Jose (SJC) to San Diego (SAN) is 417 miles of sky, and ticket prices on it are anything but steady. One week can cost double the next. Booking about 2–4 weeks in advance — and watching fares with a free Airfare Deal alert — is how regulars on this route keep costs down.
Live fares for SJC → SAN are updating. Use the search below for real-time prices.
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See live fares
Updated daily
Flight time
1h 21m
Nonstop, typical
Distance
417 mi
SJC → SAN
Book ahead
2–4 weeks
Best window, typically
Nonstop airlines
1
Southwest Airlines
Nonstop flights from San Jose to San Diego
Nonstop flights from San Jose to San Diego are flown by Southwest Airlines. The 417-mile trip takes about 1h 21m gate to gate, and nonstops are usually cheapest when booked 2–4 weeks ahead.
Booking insights: San Jose → San Diego
- Distance: 417 miles · nonstop flight time: 1h 21m.
- Cheapest upcoming week in the live data starts around Oct 29, with fares from $79.
- Fares tend to bottom out when you book about 2–4 weeks ahead — earlier than that rarely helps, later usually hurts.
- Tuesday and Wednesday departures usually undercut Friday and Sunday fares on routes like this one.
- A free fare alert beats daily checking: we watch this route and ping you when prices drop.
Cheapest month · San Jose → San Diego
November 2026
Every date's recent round-trip fare, at a glance.
Fares from
$79
Cheapest: Tue, Nov 3 — $79
Get this fare →Recent fares found for specific dates in November 2026. Blank days had no recent fare in our data — ask our team and we'll check them for you.
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Flying from San Jose to San Diego: what you need to know
The flight
At 417 miles, SJC to SAN is one of those quick up-and-down flights: roughly 1h 21m nonstop. There's no meal service to plan around — the decisions that matter here are departure time and which airport entrance traffic is kinder to you.
Airlines on this route
Southwest Airlines flies this route nonstop. That matters more than it sounds: the cheapest fare on one carrier is rarely the same product as the cheapest on another. Checked-bag fees, free seat selection and change rules all differ, so compare the full trip cost before you pick a winner. See our airline guides for exactly what each carrier charges — then send an enquiry and we'll confirm the all-in price for your dates.
Leaving from San Jose (SJC)
Plan to be at the airport two hours before a domestic departure — ninety minutes can work at smaller airports outside peak times, but security lines are the one variable you can't control. If you're checking a bag, add time rather than cutting it close. Our San Jose airport guide covers terminals, parking and ground transport so you can plan the trip to the airport, not just the flight.
Arriving in San Diego (SAN)
Before you land, know how you're getting from the airport to where you're staying — it's the part of the trip people forget to plan. The San Diego airport guide lays out your ground options, from transit and shuttles to rideshares and rental cars. Flying back the other way? Check San Diego to San Jose fares — prices on the return direction often move on a different rhythm.
When to book
For a trip of 417 miles, booking 2–4 weeks ahead typically lands you in the sweet spot. Leave it to the final two weeks and prices usually climb as the cheapest seats sell out. If your dates are flexible, midweek departures are where the lower fares hide on most domestic routes.
Good to know before you go
- Basic economy fares often exclude checked bags and seat selection. Price the whole trip, not the headline fare.
- Get to the airport two hours before departure; security, not the flight, is the part that runs late.
- If you're traveling with only a carry-on, you can skip the bag-drop line entirely with mobile check-in.
- Download the airline's app before you fly; gate changes and delays show up there first.
- Nonstop time on this route is about 1h 21m — a one-stop itinerary needs to be a lot cheaper to be worth the extra hours.
San Jose to San Diego flight FAQs
How long is the flight from SJC to SAN?
A nonstop from SJC to SAN clocks in at around 1h 21m for the 417-mile trip. If you're connecting, budget an extra 2–4 hours depending on where you stop.
Are there nonstop flights from San Jose to San Diego?
Southwest Airlines typically operate nonstop flights from SJC to SAN. Nonstops are usually cheapest when booked 2–4 weeks ahead of departure.
What is the cheapest month to fly from San Jose to San Diego?
Fares from San Jose to San Diego tend to ease outside the peak summer and holiday rush — the late-summer and early-fall shoulder weeks are usually kinder on the wallet. Set a free Airfare Deal alert and we'll flag the dips for your dates.
How much are last minute flights from SJC to SAN?
Walking up to this route at the last minute is the expensive way to do it — prices inside 7 days of departure climb fast. The 2–4 weeks booking window is where the value sits.
What is a good round-trip deal from San Jose to San Diego?
A good deal is anything at or below the recent fares shown above. Set a free Airfare Deal alert and we'll ping you the moment fares drop.
Which airlines fly from San Jose to San Diego?
You'll mainly see Southwest Airlines on San Jose to San Diego. Checking each against the live fares below is the surest way to find the lowest price for your dates.
How early should I get to San Jose airport for this flight?
Plan on two hours before departure for a domestic flight — ninety minutes can work at smaller airports outside peak times. If you're checking a bag, earlier is better; the bag-drop line, not the flight, is what runs late.
Do the cheapest fares on this route include a checked bag?
Usually not. Basic economy fares on most airlines include a carry-on but charge extra for checked bags, and seat selection can cost more too. Add up the real total before comparing — a slightly higher regular fare sometimes works out cheaper. Our team confirms the full breakdown with you before you pay.
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