Cheapest€56.78
- Horizon Air HA391418:481h 18m20:06San Jose SJCSan Diego SAN
Door to door 4h 28mCO2 170.0 kgChanges 0Fixed, no changes
San Jose to San Diego flight
Flights from San Jose to San Diego start at €56.78 and take 4h 27m at their fastest.
Check dates and fares
Fares and seats move by the day. Price San Jose to San Diego on the date you actually want, rather than on the date this page was built.
The Flights from San Jose to San Diego starts at €56.78 and takes 4h 27m door to door, run by 5 operators over 691 km, with around 40 departures a day. Fares bottom out about 60 days before departure.
- 4h 27mDoor to door
- 1h 17mMoving
- €72.12 to €134.66From
- 06:16 to 20:41First and last departure
- 40Per day
- 170.0 kgCO2
First and last are taken from the services we sell on October 6, 2026. The return direction keeps its own timetable and is not these times reversed.
€72.12 to €134.66 for one passenger across the 14 departure dates priced here. The low end is one day, not every day. Worked out from this corridor rather than held for anybody. The operator sets the price on the day.
Fares by date
What this journey usually costs, by departure date. It shows which days run dearer.
Typical fares
- about €128.17Fri18
- about €134.66Sat19
- about €103.39Sun20
- about €89.23Mon21
- about €86.28Tue22
- about €92.77Wed23
- about €96.90Thu24
- about €86.87Fri25
- about €91.59Sat26
- about €83.92Sun27
- about €72.71Mon28
- about €72.12Tue29
- about €76.84Wed30
- about €73.30Thu1
Based on what this route has cost recently. The operator sets the price on the day, and the live fare is confirmed when you book.
The cheapest and the fastest on October 6, 2026
Fastest€67.40
- Alaska Airlines AA327014:331h 17m15:50San Jose SJCSan Diego SAN
Door to door 4h 27mCO2 170.0 kgChanges 0Fixed, no changes
Airlines
| Operator | From |
|---|---|
 Alaska Airlines | €58.55 |
 SkyWest | €58.55 |
 Horizon Air | €56.78 |
 Southwest Airlines | €57.37 |
 Frontier Airlines | €58.55 |
The flight gets you into San Diego. It does not get you a bed, and neither do we.
A room in San Diego for the night the flight gets in
Sort by distance from Santa Fe Depot and you can see which places are ten minutes on foot and which are not.
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When to book San Jose to San Diego
The same search run across the whole booking window, so the shape of the curve is visible rather than described.
- €62.6890 days
- €48.5260 days
- €54.4245 days
- €63.2730 days
- €74.4821 days
- €73.3014 days
- €96.907 days
- €103.393 days
- €128.171 days
- Cheapest lead time
- Fares bottom out around 60 days ahead, at €48.52.
- How much it moves
- The gap between the cheapest and most expensive lead time is 164 percent. The most expensive point is €128.17, 1 days out.
- What that means
- Today sits inside the cheap window, which closes about 60 days before departure. Waiting from here has usually cost money on this corridor rather than saved it.
Which departure day costs least
Median cheapest fare for each weekday, taken across the next three weeks of real prices.
- €83.92Sun
- €72.71Mon
- €72.12Tue
- €76.84Wed
- €74.48Thu
- €86.87Fri
- €91.59Sat
Where you leave from and where you arrive
San Jose
Air
- SJC
San Diego
Air
- SAN
What the journey looks like
- How far it really runs
- The route covers 691 km against 670 km in a straight line, a detour of 3 percent. Track and road geometry account for the difference.
- First and last departure
- The first service of the day leaves San Jose at 06:16 and the last at 20:41, across 40 departures The return direction keeps its own timetable, so the times back are not these times reversed.
Questions about San Jose to San Diego
The questions people actually ask about this trip, answered from the same prices and times the page above is built on rather than written once and left to go stale.
How long does the Flight from San Jose to San Diego take?
The Flight from San Jose to San Diego takes 4h 27m door to door, of which 1h 17m is spent moving. The route runs 691 km. The difference between the two times is reaching the terminal and leaving it at the far end, which every time on this page includes.
How much does the Flight from San Jose to San Diego cost?
The Flight from San Jose to San Diego starts at €56.78 for one passenger, as of September 17, 2026. A typical fare is €65.93. Both are the total including taxes, supplier fees and our service fee, so the price here is the price at checkout.
Who runs the Flight from San Jose to San Diego?
5 operators run the Flight from San Jose to San Diego: Alaska Airlines, SkyWest, Horizon Air, Southwest Airlines, Frontier Airlines. Between them they file around 40 departures a day. The operator table on this page compares them on fare, journey time, cruising speed, fare conditions and what is provided on board.
Which terminal does the Flight from San Jose to San Diego use?
The Flight from San Jose to San Diego leaves from San Jose SJC and arrives at San Diego SAN. Allow about 3h 10m for reaching the departure terminal and leaving the arrival one. That time is already inside every door to door figure quoted on this page.
When should I book the Flight from San Jose to San Diego?
Fares for the Flight from San Jose to San Diego bottom out around 60 days ahead, at €48.52. The gap between the cheapest and most expensive lead time across the window is 164 percent, measured on September 17, 2026. Booking inside the final week has consistently cost more.
How much CO2 does the Flight from San Jose to San Diego produce?
The Flight from San Jose to San Diego produces about 170.0 kg of CO2 per passenger over 691 km, which works out at roughly 246 grams per passenger kilometer. That figure is for the whole journey and for one traveler, not for the vehicle.
Where these numbers come from
Places, coordinates, operators, which operator serves which pair, and every distance on this page are real and come from open data. Where a corridor has a filed timetable the departure times are real too, and ferry fares are the prices the operators publish themselves.
Derived from service area No carrier record names this exact pair. The operators listed publish a service area covering both places at a distance their mode plausibly carries people, which is evidence that the corridor is served and not evidence of a specific service. Pages state which, because presenting the two as the same thing would be dishonest.
Where no operator publishes a fare for a corridor, the price here is our own estimate, worked out from the real distance and the real operator through a fare curve that follows lead time, day of the week and season. It tells you roughly what the journey costs. It is not a seat anyone has agreed to sell, and the payment step will not take it.
Defined in full at Door to door, Fares, The booking window, Carbon
- On this page
- Every figure above was computed for San Jose to San Diego on September 17, 2026: 691 km of route against 670 km in a straight line, 40 services a day, 5 operators a cheapest fare of €56.78, and 4h 27m door to door on the fastest mode. The return direction is computed separately and its numbers are not these numbers.
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