SAN - SFO

C$ 81 Find Cheap Flights from San Diego to San Francisco

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from San Diego to San Francisco departing on 8/4. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy, 0 bags

KAYAK searches hundreds of travel sites at once for deals on flights to San Francisco

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from San Diego to San Francisco, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from San Diego to San Francisco, as well as popular online travel agencies
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Everything you should know

Cheapest round-trip
C$ 147
Overall average: C$ 181
Southwest
Wed 15/4Wed 22/4
SAN - SFO • Direct
Cheapest direct flights
C$ 160
Typical prices: C$ 108-C$ 283
United Airlines
Sat 18/4Mon 20/4
SAN - SFO • Direct
Advice from real travellers
AI-powered summary based on content written by travel experts and KAYAK users. AI can make mistakes.
United's Economy Plus offers 15 cm more legroom.
Air Canada's Wi-Fi offers free messaging for members.
Expert advice
Expert advice
+1
+1
Expert advice
Expert advice
+1
Direct flights
You can fly direct with Alaska Airlines, Frontier, and others. Average duration is 1h 46m
Direct flights
Direct flights
+1
+1
Direct flights
Direct flights
+1
Avoid delays
Most punctual • 84% on-time
Best time • Fewest delays
Insights
Insights
Insights
Insights
When to book
in advance
Our data shows that travellers who book at least 3 weeks in advance save around 44% compared to booking last minute.
Insights
Insights
Insights
Insights
When to travel
Cheapest • 29% price drop
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
+1
Start a new search
KAYAK searches hundreds of sites at once to find you the best travel deals.
We hope you love your trip to San Francisco!
Flight Deals
Booking Insights
Expert advice
Flight Deals

Cheap Flights from San Diego to San Francisco (SAN-SFO)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from San Diego to San Francisco that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from San Diego to San Francisco

Wed, 15 Apr - Wed, 22 Apr
Southwest Logo
6:30 a.m. - 8:15 a.m.
SAN
-
SFO
1h 45mdirect
Southwest Logo
1:20 p.m. - 8:30 p.m.
SFO
-
SAN
7h 10m
1 stop
C$ 147Southwest
Wed, 29 Apr - Sat, 2 May
Southwest Logo
8:20 p.m. - 10:05 p.m.
SAN
-
SFO
1h 45mdirect
Southwest Logo
1:50 p.m. - 9:00 p.m.
SFO
-
SAN
7h 10m
2 stops
C$ 153Southwest
Sat, 18 Apr - Mon, 20 Apr
United Airlines Logo
1:20 p.m. - 3:06 p.m.
SAN
-
SFO
1h 46mdirect
United Airlines Logo
8:45 p.m. - 10:38 p.m.
SFO
-
SAN
1h 53mdirect
C$ 160United Airlines
Wed, 29 Apr - Sat, 2 May
Southwest Logo
11:30 a.m. - 4:40 p.m.
SAN
-
SFO
5h 10m
1 stop
Southwest Logo
1:50 p.m. - 9:00 p.m.
SFO
-
SAN
7h 10m
2 stops
C$ 167Southwest
Sat, 18 Apr - Sun, 19 Apr
United Airlines Logo
11:00 a.m. - 12:46 p.m.
SAN
-
SFO
1h 46mdirect
United Airlines Logo
6:25 p.m. - 11:59 p.m.
SFO
-
SAN
5h 34m
1 stop
C$ 174United Airlines
Tue, 7 Apr - Wed, 8 Apr
Southwest Logo
4:25 p.m. - 10:45 p.m.
SAN
-
SFO
6h 20m
1 stop
Southwest Logo
6:20 a.m. - 5:45 p.m.
SFO
-
SAN
11h 25m
2 stops
C$ 175Southwest
Sat, 25 Apr - Mon, 27 Apr
Southwest Logo
2:25 p.m. - 4:10 p.m.
SAN
-
SFO
1h 45mdirect
Southwest Logo
3:00 p.m. - 9:10 p.m.
SFO
-
SAN
6h 10m
2 stops
C$ 181Southwest
Thu, 9 Apr - Sun, 12 Apr
United Airlines Logo
7:20 a.m. - 9:06 a.m.
SAN
-
SFO
1h 46mdirect
United Airlines Logo
8:45 p.m. - 10:38 p.m.
SFO
-
SAN
1h 53mdirect
C$ 188United Airlines
Fri, 17 Apr - Sat, 18 Apr
Southwest Logo
10:40 a.m. - 5:00 p.m.
SAN
-
SFO
6h 20m
2 stops
Southwest Logo
3:05 p.m. - 9:00 p.m.
SFO
-
SAN
5h 55m
1 stop
C$ 194Southwest
Wed, 8 Apr - Sat, 11 Apr
Southwest Logo
6:30 a.m. - 8:15 a.m.
SAN
-
SFO
1h 45mdirect
Southwest Logo
6:00 a.m. - 7:35 a.m.
SFO
-
SAN
1h 35mdirect
C$ 201Southwest
Booking Insights

KAYAK's insights & trends for San Diego to San Francisco flights

Get data-powered insights and trends into flights from San Diego to San Francisco to help you find the cheapest flights, the best time to fly and much more.

What’s the cheapest day of the week to fly from San Diego to San Francisco?

The average price of all round-trip flights from San Diego to San Francisco clicked on KAYAK for each day over the last 12 months.

If your flying dates are flexible, you should consider flying to San Francisco on a Friday, as we generally find the cheapest rates on that day for this route. On the other hand, Wednesday is the most expensive day to fly from San Diego to San Francisco. For your return ticket, we recommend flying on a Tuesday and avoiding Saturdays for the best deals.

What is the cheapest month to fly from San Diego to San Francisco?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from San Diego to San Francisco, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from San Diego to San Francisco is May, where tickets cost C$ 160 (return) on average. On the other hand, the most expensive months are February and November, where the average cost of round-trip tickets is C$ 315 and C$ 290 respectively.

How far in advance should I book a flight from San Diego to San Francisco?

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights from San Diego to San Francisco, removes the top 0.1% to account for outliers, and then takes the average of all the values for each week.

To get a below average price on the flight from San Diego to San Francisco, you should book around 3 weeks before departure, which saves you about 44% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 10 weeks before departure.

Expert advice

Expert advice for your flight from San Diego to San Francisco

 
AI-powered summary based on content written by travel experts. AI can make mistakes.
KAYAK teamed up with top travel experts to share the best tips for your journey.
Our travel experts
Stefanie Waldek

Stefanie Waldek

Expert on Air Canada and United Airlines

Stefanie Waldek is a freelance space, travel, and design writer based in Saratoga Springs, NY. Her words have appeared in Space.com, Travel + Leisure, Condé Nast Traveler, Architectural Digest, and House Beautiful, among other publications. An expert in aviation and expedition cruising, Stefanie is frequently up in the air or on the sea, likely en route to Antarctica or the Arctic.

Good to know

Low seasonFebruary
Cheapest flightC$ 81
Best time to beat the crowds but there is an average 40% increase in price.
Most popular time to fly and prices are also 29% lower on average.
Flight from San Diego to San Francisco

When to book flights from San Diego to San Francisco

Are your dates flexible? Find out the best times to travel from San Diego to San Francisco based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

Flights from San Diego to San Francisco: the best tips from KAYAK users' own experiences

Insights shared by verified travellers who flew the route from San Diego to San Francisco 
LindseyFlew with SWISS
SAN
-
SFO
Dec 2025
Ready for weather delays of wind in SFO, which happens often. Keep that in consideration when planning an additional leg of a trip after it from SFO.
VyomaFlew with Alaska Airlines
SAN
-
SFO
Jun 2024
Be sure to read the signs, i have heard it's confusing for connecting flights if you don't follow the directions.

FAQs for booking flights from San Diego to San Francisco

  • What is the cheapest flight from San Diego to San Francisco?

    In the last 3 days, the lowest price for a flight from San Diego to San Francisco was C$ 81 for a one-way ticket and C$ 147 for a round-trip.

  • Which airlines offer Wi-Fi service onboard planes from San Diego to San Francisco?

    Alaska Airlines, JetBlue, American Airlines, Lufthansa, and United Airlines offer inflight Wi-Fi service on the San Diego to San Francisco flight route.

  • Which aircraft models fly most regularly from San Diego to San Francisco?

    The Boeing 737 MAX 8 is the aircraft model that flies most regularly on the San Diego to San Francisco flight route.

  • On which days can I fly direct from San Diego to San Francisco?

    There are direct flights from San Diego to San Francisco on a daily basis.

  • How does KAYAK find such low prices on flights from San Diego to San Francisco?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from San Diego to San Francisco.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from San Diego to San Francisco?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to San Francisco from San Diego is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from San Diego to San Francisco?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to San Francisco with an airline and back to San Diego with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from San Diego to San Francisco?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to San Francisco from San Diego up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Prefer to fly direct from San Diego to San Francisco?

 
Direct data is based off flight results for the next 60 days. Find direct flights from all airlines flying direct from San Diego to San Francisco.
Find which airlines fly direct from San Diego Airport to San Francisco Airport, which days they fly and book direct flights.

Direct departures

San Diego to San Francisco

Monday

Alaska Airlines,Frontier,Southwest, +1 more

Alaska Airlines,Frontier, +2 more

Tuesday

Alaska Airlines,Southwest,United Airlines, +1 more

Alaska Airlines,Southwest, +2 more

Wednesday

Alaska Airlines,Southwest,United Airlines, +1 more

Alaska Airlines,Southwest, +2 more

Thursday

Alaska Airlines,Frontier,Southwest, +1 more

Alaska Airlines,Frontier, +2 more

Friday

Alaska Airlines,Frontier,Southwest, +1 more

Alaska Airlines,Frontier, +2 more

Saturday

Alaska Airlines,Southwest,United Airlines, +1 more

Alaska Airlines,Southwest, +2 more

Sunday

Alaska Airlines,Frontier,Southwest, +1 more

Alaska Airlines,Frontier, +2 more

See more nonstop flights

Direct returns

San Francisco to San Diego

Monday

Alaska Airlines,Frontier,Southwest, +1 more

Alaska Airlines,Frontier, +2 more

Tuesday

Alaska Airlines,Southwest,United Airlines, +1 more

Alaska Airlines,Southwest, +2 more

Wednesday

Alaska Airlines,Southwest,United Airlines, +1 more

Alaska Airlines,Southwest, +2 more

Thursday

Alaska Airlines,Frontier,Southwest, +1 more

Alaska Airlines,Frontier, +2 more

Friday

Alaska Airlines,Frontier,Southwest, +1 more

Alaska Airlines,Frontier, +2 more

Saturday

Alaska Airlines,Southwest,United Airlines, +1 more

Alaska Airlines,Southwest, +2 more

Sunday

Alaska Airlines,Frontier,Southwest, +1 more

Alaska Airlines,Frontier, +2 more

See more nonstop flights

Everything you need to know for your flight from San Diego to San Francisco

Information on your arrival and departure airports