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Cheap flights from San Francisco to San Diego

The cheapest round trip from San Francisco to San Diego that travelers found recently is $82 with a carry-on: a $82 fare on Alaska Airlines, which usually includes a carry-on. It leaves Tue, Nov 10 and comes back Thu, Nov 12.

Live prices for Tue, Nov 10 to Thu, Nov 12

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$82Cheapest round trip, carry-on included (est.)
$220Typical round trip found recently
NovemberCheapest month in the next few, from $82
89%Of these fares are nonstop

Cheapest trips travelers found recently

LeaveReturnAirlineAirportsStopsFareCarry-on (est.)TotalLive prices
Tue, Nov 10Thu, Nov 12Alaska AirlinesSFO → SANNonstop$82Included$82Live price
Wed, Nov 25Mon, Nov 30SouthwestOAK → SANNonstop$194Included$194Live price
Thu, Jul 8Sun, Jul 11Alaska AirlinesSFO → SANNonstop$198Included$198Live price
Thu, Oct 22Sun, Oct 25SouthwestSFO → SANNonstop$216Included$216Live price
Sat, Oct 24Tue, Oct 27FrontierSFO → SANNonstop$110+$110$220Live price
Wed, Oct 21Tue, Oct 27FrontierSFO → SANNonstop$135+$110$245Live price
Fri, Oct 16Sun, Oct 18UnitedSFO → SANNonstop$276Included$276Live price
Wed, Nov 25Sun, Nov 29UnitedSFO → SANNonstop$318Included$318Live price
Fri, Oct 23Sun, Oct 25FrontierSFO → SAN1 stop$246+$110$356Live price

Round-trip prices per person, from real fares travelers found in the last few days. Carry-on fees are our estimate for each airline, both ways. Prices change fast: check the live price before you book.

Cheapest month to fly

MonthCheapest tripFromLive prices
October 2026Thu, Oct 22 to Sun, Oct 25, 3 nights$216Live price
November 2026Tue, Nov 10 to Thu, Nov 12, 2 nights$82Live price
July 2027Thu, Jul 8 to Sun, Jul 11, 3 nights$198Live price

Bag fees on this route

What the airlines flying San Francisco to San Diego usually charge for one bag each way. Budget airlines often sell the cheapest fares and charge the most for bags, so compare the total, not the fare.

AirlineCarry-on, each wayChecked bag, each way
Alaska AirlinesIncluded$40
Frontier$55$50
SouthwestIncluded$35
UnitedIncluded$40

Our estimates: fees depend on the fare type and when you pay. Check the airline's own price when you book.

How these prices work

These are real round-trip fares that travelers found on Aviasales recently, not a live search, so they can change or sell out. Dipt adds an estimate of each airline's carry-on fee, so a cheap fare with expensive bags doesn't look cheaper than it is. "Live price" opens Dipt's live flight search for those dates, where you book with the airline or travel site you pick. Dipt may earn a commission when you book, at no extra cost to you (how Dipt makes money).

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