Cheap flights from San Francisco to San Diego from £21
This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from San Francisco to San Diego departing on 8/7. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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Hawaiian Airlines flights from San Francisco to San Diego
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How to get the cheapest flight ticket from San Francisco to San Diego
Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip
What is the cheapest month to fly to San Diego?
If you don’t want to visit San Diego in January, then you should wait until February to fly from San Francisco, when ticket prices are also cheap, with an average price of £91.
What is the cheapest day to depart on your flight to San Diego?
The cheapest day to depart from San Francisco to San Diego is on a Thursday when prices can be found for as low as £28. Flights from San Francisco to San Diego on a Friday will generally be more expensive and average around £186. Keep in mind that these prices on both days could fluctuate depending on the season and the demand.
What is the cheapest time of day to depart on your flight to San Diego?
In the morning is the cheapest time of day to fly from San Francisco to San Diego when you can find flight prices for as low as £78. Flying to San Diego in the morning is an ideal time because this is during off-peak travel hours. Try not to purchase tickets at midday because they tend to be around £188. Of course, these prices can vary depending on the time of year and what airport you fly to.
What is the cheapest San Francisco to San Diego flight route?
Fly from San Francisco to San Diego for the best San Francisco - San Diego flight prices
How far in advance should I book a flight to San Diego?
You are more likely to see cheaper flights to San Diego from San Francisco when booking 5 weeks ahead of your departure date. In general, you can expect to find flights to San Diego for around £105 when searching 5 weeks out.However, flight prices might be lower outside of this timeframe. For example, people recently found flights to San Diego from San Francisco for as low as £78 on momondo.
What cabin class options are available on San Francisco to San Diego flights?
There are 2 cabin classes available to choose from on San Francisco to San Diego flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.
What is the cheapest airline that flies from San Francisco to San Diego?
United Airlines, Southwest, and Hawaiian Airlines are the most popular carriers operating from San Francisco to San Diego
Which airlines fly to San Diego?
Frontier, Alaska Airlines and Spirit Airlines are the top three most popular airlines that fly to San Diego from San Francisco according to our data. Frontier is the first choice among our users, with 53% of people opting to fly with this airline when travelling to San Diego. Keep in mind that there are 3 different airlines that fly to San Diego on a routine basis, so you have a few additional options to choose from.
How many flights depart from San Francisco to San Diego on average per day?
The number of flights available between San Francisco and San Diego is 68 per day as of June 2025. The most frequent departure time is 21:00, with 37% of daily flights leaving in the evening.
How many flights depart from San Francisco to San Diego on average per week?
As of June 2025, there are 476 flights per week flying from San Francisco to San Diego. The most common day of the week flights depart is Thu, with 18% of flights taking off on this day.
When to book flights from San Francisco to San Diego
Cheap San Francisco to San Diego (SFO to SAN) flight deals and tips
Find info about flight duration, direct flights, and airports for your flight from San Francisco to San Diego
How far is San Francisco to San Diego by plane?
San Diego is 458.7 mi away from San Francisco. Typically, this will take 1h 28m by plane in normal conditions.
When did momondo last update prices for flights from San Francisco Airport to San Diego Airport?
Prices for flights from San Francisco Airport to San Diego Airport were last updated today.
How many operators does momondo search for flights from San Francisco Airport to San Diego Airport?
The number of operators available for flights from San Francisco Airport to San Diego Airport is 2 as of June 2025.
How old do you have to be to fly from San Francisco Airport to San Diego Airport?
Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from San Francisco Airport to San Diego Airport.
What documentation or ID do you need to fly to San Diego Airport?
The travel and health documents required for your trip to San Diego Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at San Diego Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.
What is the most popular plane model from San Francisco to San Diego?
Based on momondo bookings for this flight route, the most popular plane model on flight routes from San Francisco to San Diego is Embraer 175 (13.62% of total bookings). The next most popular plane models are Boeing 737-800 Passenger/BBJ2 (winglets) (13.40%), Boeing 737-800 (9.91%), and Boeing 737 MAX 8 (9.36%).
What is the most popular airline from San Francisco to San Diego?
Based on momondo bookings for this flight route, the most popular airline on flight routes from San Francisco to San Diego is Frontier (53% of total bookings). The next most popular airline is Alaska Airlines (47%).
Best airlines flying from San Francisco to San Diego
Compare and see reviews for airlines that fly from San Francisco to San Diego with momondo
| Airline | Rating | Free Cancellation | Price | ||
|---|---|---|---|---|---|
| PriceFrom £27 | Free Cancellation | Rating 5.9 3,296 reviews | |||
| PriceFrom £40 | Free Cancellation | Rating 8.0 10,000 reviews |
Alaska Airlines Flights From San Francisco to San Diego
Alaska Airlines flies from San Francisco to San Diego around 34 times per week, with 10,000 momondo users rating the airline 8.0/10. The cheapest Alaska Airlines deal from San Francisco to San Diego in the last 72 hours was £54 (round-trip), much lower than the average airfare cost of £205 for Alaska Airlines flights on this route.
Frontier Flights From San Francisco to San Diego
Across 3,295 Frontier reviews on momondo, the average score is 5.9/10. Frontier flies from San Francisco to San Diego about 5 times each week, with ticket deals ranging from £36 to £79. Price data is based on momondo searches in the last 72 hours.
Travelling to a place near San Diego?
Book flights to San Diego if you plan to visit one of these locationsWhy use momondo?
Why should I use momondo to find a flight deal from San Francisco to San Diego?
It is quick and easy to find San Francisco to San Diego flights on momondo. We search and return numerous flight options from various airlines and agents. You can then use our filters to narrow your search until you have found the most convenient flight to San Diego that suits you.
Can I find flights from San Francisco to San Diego with flexible booking policies on momondo?
momondo does allow users to show only those flights to San Diego from San Francisco which offer a flexible booking policy as well as other useful filters and features.
How can momondo help me find flights from San Francisco to San Diego?
momondo helps you find the best flight between San Francisco and San Diego by providing filters to narrow your choice of flights to those matching your criteria. You can select flights based on numerous factors such as price, departure and landing times, airport and airline.
I’m not ready to book a flight from San Francisco to San Diego right now. Can momondo alert me if prices change?
If you are not ready to book a flight from San Francisco to San Diego now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to San Diego and let you know when they change.