Question 1

How popular is this San Francisco to San Diego flight route?

Accepted Answer

The San Francisco to San Diego flight path was viewed by 9 users in the past month. Keep an eye out for changes in search interest prior to high and low season.

Question 2

How long is the flight from San Francisco to San Diego?

Accepted Answer

There are many flights that can get you from San Francisco to San Diego in 1h 30m. Fly via United Airlines, Frontier, or Southwest to get the fastest option. San Francisco and San Diego are separated by a distance of 446 mi. Most flights are nonstop.

Question 3

What are the cheapest airlines flying from San Francisco to San Diego round-trip?

Accepted Answer

Frontier, at £27, was found to be the cheapest airline from San Francisco to San Diego.Alternate airlines flying return to your destination include Alaska Airlines and Hawaiian Airlines. Frontier is 73% cheaper than the average price of flights available within the next 90 days to this destination.

Question 4

What are the cheapest airlines to fly from San Francisco to San Diego one-way?

Accepted Answer

For one-way options, check prices for Southwest. According to our data, you can fly for as low as £29. Users have also found prices from £29 and £29 on United Airlines and Hawaiian Airlines, respectively.

Question 5

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

Accepted Answer

Booking 72 days in advance of your planned departure date is, on average, the best time to get cheap flights from San Francisco to San Diego. The general trend is that the closer you book to the departure date, the more expensive your flight will be.

Question 6

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

Accepted Answer

Currently, January is the cheapest month in which you can book a flight from San Francisco to San Diego (average of £585). Flying from San Francisco 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.

Question 7

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

Accepted Answer

Travellers seeking maximum savings on their San Francisco to San Diego flight should consider departing on Thursday mornings when fares are most often at their lowest. Sunday mornings flights should be avoided if possible as fares are typically the most expensive at this time.

Question 8

Weekly flight availability from San Francisco to San Diego

Accepted Answer

The most flights from SFO to SAN are scheduled on a Thursday (85 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (53 on average).

Question 9

E

Accepted Answer

In terms of precipitation, rainfall in San Diego ranges from 0.0 - 58.0 inches per month. February is typically the wettest month, when rainfall can reach 58.0 mm. July is typically the driest time to visit San Diego when rainfall is around 0.0 mm.

Question 10

E

Accepted Answer

If weather is an important factor for your trip to San Diego, use this chart to help with planning. For those seeking warmer temperatures, August is the ideal time of year to visit, when temperatures reach an average of 22.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 14.0 C).

Question 11

What are the cheapest flights from San Francisco to San Diego?

Accepted Answer

On average you can expect to pay £141 for a flight from San Francisco to San Diego. The cheapest flight overall is £39 while the most popular route, (San Francisco - San Diego) is currently priced at £71.

Question 12

What are the most reliable airlines from San Francisco to San Diego?

Accepted Answer

No one likes to see their flight delayed. When booking a flight from San Francisco to San Diego consider choosing Air China (88%), Air New Zealand (79%) or Singapore Airlines (78%) as they are the most reliable in getting you off to your destination on time.

Question 13

What are the most popular airlines that fly from San Francisco to San Diego?

Accepted Answer

The most popular airlines flying from San Francisco to San Diego are Alaska Airlines, Frontier and Hawaiian Airlines. Something to consider prior to booking your flight.

Question 14

What is the cheapest day to fly round-trip from San Francisco to San Diego?

Accepted Answer

Users have found that flying from San Francisco to San Diego on a Thursday typically leans towards higher prices. However, this doesn’t mean you still can’t find a deal. Flexibility with other aspects of your flight can still land a great price for your trip.

Question 15

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

Accepted Answer

To save up to 93% on this flight, we recommend booking at least 31 days prior to travel. The price may fluctuate and will likely increase closer to your departure date. Users on Cheapflights have found tickets from San Francisco to San Diego from £95 1-2 weeks out and tickets from £146 for flights departing within the next 72 hours.

Question 16

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

Accepted Answer

January is one of the best times of the year to fly to San Diego from San Francisco. Prices for January average £103 per person but you can even find prices for as low as £27. The most expensive prices can be found in the month of December. Opting for a January flight can save you 18% on your journey compared to booking in December

Question 17

What is the cheapest time of day to fly from SFO to SAN?

Accepted Answer

It’s typically best to fly out from San Francisco to San Diego in the morning. Doing so could potentially save you 62% on the flight price compared to flying at midday, which is usually more expensive.

Question 18

What airports do I use to fly from San Francisco to San Diego?

Accepted Answer

To fly from San Francisco to San Diego, you need to book a flight from San Francisco (SFO) to San Diego (SAN). Nonstop flights to San Diego from San Francisco take 1h 41m on average. When it comes time to book airfare, you have a few options: there are 73 outbound flights from San Francisco to San Diego offered by 3 different airlines.

Question 19

Can I find deals for flights from San Francisco to San Diego that include hotel bookings?

Accepted Answer

Yes. In addition to deals on San Francisco to San Diego flights, Cheapflights offers holiday packages that include both flights and hotel.

Question 20

How can I find direct flights from San Francisco to San Diego?

Accepted Answer

After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from San Francisco to San Diego.

Question 21

Can I find deals for business class flights from San Francisco to San Diego?

Accepted Answer

Yes. Cheapflights offers flight deals from San Francisco 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.

Question 22

How does Cheapflights help users find flights from San Francisco to San Diego?

Accepted Answer

Cheapflights makes it easy to find San Francisco to San Diego flights by helping our users search from 900+ travel sites for deals. We also provide you with filters for cabin, price, airline, airports, number of stops, and many more to narrow down that perfect flight.

Question 23

Why should you use Cheapflights to find cheap flight tickets from San Francisco to San Diego?

Accepted Answer

Millions of users choose and trust Cheapflights to book the best flight deals from San Francisco to San Diego for free. We help you search and compare prices from hundreds of airlines for the right flight just for you.

Question 24

Can Cheapflights find flights from San Francisco to San Diego with no change fees?

Accepted Answer

Cheapflights does show flights with no change fees to all users. To see these options for flights from San Francisco to San Diego, users can toggle the no change fees filter when performing a flight search.

Question 25

Can Cheapflights notify me if prices for flights from San Francisco to San Diego become cheaper?

Accepted Answer

Not ready to book yet? You can track prices for flights from San Francisco to San Diego on Cheapflights with our Price Alert feature and get notified when better prices are available.

Round-trip from	£54
One-way from	£29
Popular in	December
Cheapest in	January
Average price	£118
Good round-trip deal	£65 or less
Good one-way deal	£58 or less

Airline	Cheapest	Average	Flexibility	On-time
Frontier	Cheapest£27	Average£59	FlexibilityNo cancel fee	On-time62%	Search Frontier flights
Alaska Airlines	Cheapest£40	Average£122	FlexibilityNo cancel fee	On-time75%	Search Alaska Airlines flights
Hawaiian Airlines	Cheapest£63	Average£84	FlexibilityNo cancel fee	On-time85%	Search Hawaiian Airlines flights

Cheap flights from San Francisco to San Diego from £29

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 18/9. Fares are subject to change and may not be available on all flights or dates of travel.

Cheapflights Tip: The best prices from San Francisco to San Diego are usually found in January or February, booked 72 days in advance, depart on a Thursday or Monday and return on a Thursday

Cheap flight deals from San Francisco to San Diego

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Find flight deals from San Francisco to San Diego

Cheapest flights from San Francisco to San DiegoExplore the most affordable flight options available from San Francisco to San Diego. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 22 August 2025.

Explore the most affordable flight options available from San Francisco to San Diego. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 22 August 2025.

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Best time to book a flight from San Francisco to San Diego

Have a flexible travel schedule? Discover the best time to fly to San Diego from San Francisco with our price prediction graph.

Cheapflights Insights

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

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

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

What is the cheapest time of day to fly from SFO to SAN?

Weekly flight availability from San Francisco to San Diego

Reviews of airlines servicing San Diego

Get a feel of what it's like to fly with Alaska Airlines, Hawaiian Airlines, andFrontier from San Francisco to San Diego by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.

Related info for your journey

Find useful and relevant information for your journey from San Francisco to San Diego. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

What airports do I use to fly from San Francisco to San Diego?

How popular is this San Francisco to San Diego flight route?

How long is the flight from San Francisco to San Diego?

What are the cheapest airlines flying from San Francisco to San Diego round-trip?

What are the cheapest airlines to fly from San Francisco to San Diego one-way?

What are the most reliable airlines from San Francisco to San Diego?

What are the cheapest flights from San Francisco to San Diego?

Can I find deals for flights from San Francisco to San Diego that include hotel bookings?

How can I find direct flights from San Francisco to San Diego?

Can I find deals for business class flights from San Francisco to San Diego?

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

Travelling to a place near San Diego?

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Alternative routes for San Francisco to San Diego

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Top 3 airlines flying from San Francisco to San Diego

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How does Cheapflights help users find flights from San Francisco to San Diego?

Why should you use Cheapflights to find cheap flight tickets from San Francisco to San Diego?

Can Cheapflights find flights from San Francisco to San Diego with no change fees?

Can Cheapflights notify me if prices for flights from San Francisco to San Diego become cheaper?

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Cheapest flights from San Francisco to San Diego
Explore the most affordable flight options available from San Francisco to San Diego. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 22 August 2025.