$25 Cheap Flights to San Diego, CA

View $25 flight on Tue, Oct 21, 2025Opens in a new window

Popular airlines to San Diego

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How much is the cheapest flight to San Diego?

Prices were available within the past 7 days and start at $25 for one-way flights and $67 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Frontier Airlines
Fri, Nov 7 - Sat, Nov 8
PHX
Phoenix
SAN
San Diego
$69 Roundtrip, found 3 hours ago
$69
Roundtrip
found 3 hours ago
Select Frontier Airlines flight, departing Fri, Nov 7 from Phoenix to San Diego, returning Sat, Nov 8, priced at $69 found 3 hours ago
Southwest Airlines
Mon, Nov 17 - Thu, Nov 20
SFO
San Francisco
SAN
San Diego
$76 Roundtrip, found 2 hours ago
$76
Roundtrip
found 2 hours ago
Select Southwest Airlines flight, departing Mon, Nov 17 from San Francisco to San Diego, returning Thu, Nov 20, priced at $76 found 2 hours ago
Hawaiian Airlines
Wed, Dec 17 - Sat, Jan 10
SMF
Sacramento
SAN
San Diego
$78 Roundtrip, found 3 days ago
$78
Roundtrip
found 3 days ago
Select Hawaiian Airlines flight, departing Wed, Dec 17 from Sacramento to San Diego, returning Sat, Jan 10, priced at $78 found 3 days ago
United
Sat, Dec 13 - Tue, Dec 16
SFO
San Francisco
SAN
San Diego
$79 Roundtrip, found 4 hours ago
$79
Roundtrip
found 4 hours ago
Select United flight, departing Sat, Dec 13 from San Francisco to San Diego, returning Tue, Dec 16, priced at $79 found 4 hours ago
Alaska Airlines
Mon, Nov 10 - Fri, Nov 14
PHX
Phoenix
SAN
San Diego
$88 Roundtrip, just found
$88
Roundtrip
just found
Select Alaska Airlines flight, departing Mon, Nov 10 from Phoenix to San Diego, returning Fri, Nov 14, priced at $88 just found

Find the cheapest month to fly from Columbus (CMH) to San Diego (SAN)

January is typically the cheapest month to fly

From $124 - $537 per traveler.

Frequently asked questions

What month is the cheapest to fly to San Diego?
The cheapest month to fly to San Diego is November when there's less demand. Off-peak months are usually when you'll find cheap fares. To keep costs down, avoid flying during public and school holidays.
Which US cities have the cheapest flights to San Diego?
San Francisco, Las Vegas and San Jose typically offer cheap flights to San Diego. Bear in mind that prices may vary based on factors such as demand, time of year and number of stopovers.
Which US cities fly direct to San Diego?
Choose from 51 US destinations offering direct flights to San Diego. When reserving on Expedia, select "Direct flights only" to find nonstop options. Fly to San Diego from any of these cities:

  • San Francisco
  • Las Vegas
  • San Jose
  • Denver
  • Phoenix

How to find a cheap flight to San Diego?
To lock in cheap flights to San Diego, book well in advance or visit during the off-season months of January and February. Want an insider tip? Leave on a Thursday and save 16% on average compared to those who travel on a Sunday.* Set up price tracking on the Expedia app and we'll get in touch as soon as your fares drop.*Best day of the week to book, depart and ideal booking window recommendations based on average round-trip ticket prices for January through August 2023, sourced from Airline Reporting Corporation's (ARC) global airline sales database. Percentages noted are averages.
How to get a cheap last-minute flight to San Diego?
Staying flexible about your travel plans might help you find last-minute deals on cheap flights to San Diego. To see all the available options, consider looking at different ticket types, changing your San Diego trip dates, jetting out of an alternative airport or going with another airline.
How far in advance should I book a flight to San Diego?
Lock in your flight to San Diego two to four months ahead if you're coming in from an international destination. For domestic travel, the general guideline is 28 days in advance. Better deals and a wider variety of departure dates, times and seating options are just a few of the benefits of booking early.**Best day of the week to book, depart and ideal booking window recommendations based on average round-trip ticket prices for January through August 2023, sourced from Airline Reporting Corporation's (ARC) global airline sales database. Percentages noted are averages.
Which day of the week is the cheapest day to buy a plane ticket to San Diego?
You can save an average of 8% if you purchase tickets on a Sunday instead of Fridays, which tend to be the most expensive day to book.* When it comes to snapping up a cheap flight to San Diego, timing makes a difference.*Best day of the week to book, depart and ideal booking window recommendations based on average round-trip ticket prices for January through August 2023, sourced from Airline Reporting Corporation's (ARC) global airline sales database. Percentages noted are averages.
Which airlines fly to San Diego?
San Diego is connected to 55 airports globally through 15 carriers, with San Diego Intl. Airport (SAN) as its primary gateway. Choose from these top airlines to San Diego when organizing your trip:

  • Alaska Airlines
  • American Airlines
  • United Airlines
  • Delta Air Lines

Where do you fly into San Diego?
The main airport when you fly to San Diego is San Diego Intl. Airport (SAN), but there are some great nearby alternatives like McClellan-Palomar Airport (CLD) and San Diego, CA (MYF-Montgomery Field). You can also land at San Diego, CA (SEE-Gillespie Field) and San Diego, CA (SDM-Brown Field Municipal) when flying to San Diego.
How far is the airport from central San Diego?
Flying into San Diego Intl. Airport (SAN) puts you approximately 2 mi northwest of the center of San Diego.
Can I save money by booking a San Diego trip package?
Book a San Diego flight and hotel package deal on Expedia, and you can enjoy significant savings. It's simple to bundle your accommodations and flights, and you can even add car rentals and tours to create your own personalized San Diego getaway. Plus, nothing beats the convenience of booking everything in one place.
Can I change or cancel my flight to San Diego?
You can typically change or cancel your flight to San Diego within 24 hours of booking. However, be mindful that some fares are non-refundable. In those cases, you may receive a credit toward future travel instead of a direct refund. It's important to check the airline's rules and restrictions in your itinerary for specific details. Use Expedia's "No cancel fee" or "Changes included" filters during your search to find cheap flights to San Diego with flexible change policies. For additional information, visit our Customer Service Portal.

Book with confidence

Book with confidence

San Diego Flights

San Diego Airports

If the pristine beaches and laidback California lifestyle are attracting you to America’s Finest City, book your flights to San Diego Intl. Airport (SAN). Located smack dab in the middle of the excitement, this airport is located just 3 miles northwest of downtown and roughly 5 miles southeast of several beach towns.

While McClellan-Palomar Airport also serves San Diego, SAN sees the majority of traffic to this city. The SD airport features a number of amenities, such as shops and restaurants. You’ll find clothing boutiques, souvenir stores, electronic stands, and gift shops to cover all your last-minute purchases. As for dining, the terminals provide bars, restaurants, and on-the-go options, including fast food and café treats. To top it all off, when you book flights to San Diego, you can take advantage of the on-site lounges and spas.

Airport Transportation

Once you’ve reserved plane tickets to San Diego, you may want to book a set of wheels so you can travel around the coast on your own watch. You can request San Diego car rentals right here, which let you hop in the driver’s seat almost as soon as your flight touches ground. Alternatively, the airport provides ground transportation such as taxi, shuttle, and limousine services. If you’d prefer public transportation, catch a ride on the Metropolitan Transit System bus, which connects to the trolley, COASTER, and Amtrak station.

San Diego Activities

With scenic beach towns and year-round sunny weather, it’s no wonder tourists flock to this coastal hot spot. Going to the beach is certainly one of the top things to do in San Diego, whether you’re looking to surf at Pacific Beach or marvel at the sea lions at La Jolla Cove. Other popular attractions include the museums in Balboa Park, the historical Hotel del Coronado, and the night clubs in the Gaslamp Quarter. After exploring the Southern California city from top to bottom, rest up at one of the best hotels in San Diego.

Planning Your Trip

The beauty of booking San Diego flights is that it’s always a good time to visit. Temperatures are comfortable year round, usually between the low 60s and the high 70s F. The summer months are a prime time to visit, but you will face swarms of tourists. Spring and fall are pleasant, while winter tends to be slightly cooler and rainier than the rest of the year.

Once you’ve decided when you want to visit, allow us here at Expedia.com to connect you with cheap tickets to San Diego. We know that you want to focus more on surf lessons and less on the price of your airfare, so we provide travel arrangements that fall within your budget. You can even use our mobile booking app to browse our cheap flights to San Diego and score exclusive deals. Don’t wait a second longer—book your airfare today and bask at the seaside tomorrow.

San Diego Flights

Travel information

Travel information

Destination airport
San Diego Intl.
Destination airport IATA code
SAN
Destination city name
San Diego
Roundtrip price
$66

Trending flights to San Diego

Prices were available within the past 7 days and start at $25 for one-way flights and $67 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Frontier Airlines
Thu, Nov 20 - Thu, Nov 20
SFO
San Francisco
SAN
San Diego
$67 Roundtrip, found 2 hours ago
$67
Roundtrip
found 2 hours ago
Select Frontier Airlines flight, departing Thu, Nov 20 from San Francisco to San Diego, returning Thu, Nov 20, priced at $67 found 2 hours ago

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