Cheap flights to San Diego

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Flight deals to San Diego

Looking for a cheap last-minute deal or the best round-trip flight to San Diego? Find the biggest savings on one-way and round-trip tickets right here.

Find the cheapest time to fly to San Diego

Flexible on travel dates? Find the cheapest month – or even day – to fly to San Diego.

Airports in San Diego

Looking for the best route? There are 3 airports in and around San Diego.

Direct flights to San Diego

Frequently asked questions

The average flight time to San Diego is 5 hours and 25 minutes. We've calculated this based on journeys from Washington, D.C..
There are 3 airports in San Diego: San Diego International, El Cajon and McClellan – Palomar.
Southwest Airlines, Alaska Airlines, American Airlines, SkyWest Airlines, Delta, United, KLM and Qatar Airways all fly non-stop to San Diego.
The cheapest month to fly to San Diego is usually May.
We show every price from over 1,200 airlines and travel agents, comparing them all so you don’t have to. If you know you want to fly to San Diego but you’re not ready to book, set up a Price Alert. We’ll track prices for you, and let you know when they rise or fall.
Yes – you can fly direct to San Diego International Airport or McClellan – Palomar Airport, and the average flight time is 3 hours and 25 minutes.
The best price we found for a round-trip flight to San Diego is $36. This is an estimate based on information collected from different airlines and travel providers over the last 4 days and is subject to change and availability.
The cheapest airport near San Diego is San Diego International – which is 2.5 miles away from the center of San Diego. We've found flights to this airport from $36.
After crunching the numbers on our flight calendar, we found that the cheapest date to fly to San Diego is Wednesday, May 29, 2024.
We crunched all the numbers in our flight calendar, and it looks like the cheapest time to book a flight to San Diego is around 40 days in advance, so don’t leave your flight to the last minute.
The average temperature in San Diego in April is around 60°F. The warmest month in San Diego is typically August, which averages 83°F. The coolest month is December, with temperatures averaging 49°F. The rainiest month is February, and it usually rains the least in June.
Currently, Frontier Airlines offers the cheapest flight tickets to San Diego.

Flying to San Diego

The things to know before you go.
Cheapest flight found$36
Cheapest month to flyMay
Average flight time3 hrs, 25 mins
Most popular airlineSouthwest Airlines
Average flights per week5,919

Discover San Diego

How to find cheap flights to San Diego

Finding cheap flights to San Diego is a breeze with Skyscanner. Flight prices change often, and your fare depends on travel date, seat availability, and booking time. We've compared airfares from all top online travel agents and airlines jetting to San Diego to find you the cheapest flights. With Skyscanner, what you see is what you get – no hidden costs.

Best time to visit San Diego

The best time to visit San Diego is typically from July to August. During this time, you can expect warm and pleasant temperatures, averaging between 68°F and 78°F. If you're looking for a quieter visit or want to save some money, you might want to think about coming during December and January. Just keep in mind that it's a bit cooler during these months, with temperatures ranging from 50°F to 66°F, but still pretty mild compared to many other places.

Best time to book flights to San Diego

Looking for a cheap flight to San Diego from anywhere in the United States? We recommend booking your tickets about 45-60 days in advance, as this window often offers the best deals. Don't forget to use our Price Alert feature, which will track ticket prices for you and notify you if they decrease. This way, we help you stay updated and make your trip as cost-effective as possible.

Airports in San Diego

San Diego is home to one major airport, San Diego International Airport, situated just about 3 miles to the west of the city center. While it's the only airport serving the city, it's a bustling hub that manages a vast majority of both domestic and international flights. Despite being the only airport, San Diego International efficiently caters to all air travel needs of the region.

Top things to see and do in San Diego

San Diego features a blend of sleek high-rises and lush parks. Cabrillo National Monument offers a panoramic city view, while Balboa Park is a popular spot for walks. Visit the Gaslamp Quarter for unique boutiques and local artistry, or wander around Little Italy to delve into the food scene. If architecture interests you, the structures in the Old Town are worth visiting. After exploring the San Diego Museum of Art and Botanical Building, unwind at a food truck and savor a craft beer or some tacos.


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Prices shown on this page are estimated lowest prices only. Found in the last 45 days.