Cheap Flights to San Diego

Compare San Diego flights across hundreds of providers

Find the cheapest month or even day of the year to fly to San Diego

Book the best San Diego fare with no extra fees

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.

San Diego.$171 per passenger.Departing Mon, May 19.One-way flight with United.Outbound indirect flight with United, departing from San Juan Luis Munoz Marin on Mon, May 19, arriving in San Diego International.Price includes taxes and charges.From $171, select.

San Diego.$175 per passenger.Departing Thu, Oct 23.One-way flight with Delta.Outbound indirect flight with Delta, departing from San Juan Luis Munoz Marin on Thu, Oct 23, arriving in San Diego International.Price includes taxes and charges.From $175, select.

San Diego.$202 per passenger.Departing Sat, Aug 16.One-way flight with Delta.Outbound indirect flight with Delta, departing from San Juan Luis Munoz Marin on Sat, Aug 16, arriving in San Diego International.Price includes taxes and charges.From $202, select.

San Diego.$217 per passenger.Departing Sat, Jun 7.One-way flight with United.Outbound indirect flight with United, departing from San Juan Luis Munoz Marin on Sat, Jun 7, arriving in San Diego International.Price includes taxes and charges.From $217, select.

San Diego.$233 per passenger.Departing Mon, Dec 15.One-way flight with American Airlines.Outbound indirect flight with American Airlines, departing from San Juan Luis Munoz Marin on Mon, Dec 15, arriving in San Diego International.Price includes taxes and charges.From $233, select.

San Diego.$233 per passenger.Departing Sat, Jul 26.One-way flight with United.Outbound indirect flight with United, departing from San Juan Luis Munoz Marin on Sat, Jul 26, arriving in San Diego International.Price includes taxes and charges.From $233, select.

San Diego.$283 per passenger.Departing Sun, Nov 9.One-way flight with American Airlines.Outbound indirect flight with American Airlines, departing from San Juan Luis Munoz Marin on Sun, Nov 9, arriving in San Diego International.Price includes taxes and charges.From $283, select.

San Diego.$378 per passenger.Departing Tue, Apr 29.One-way flight with United.Outbound indirect flight with United, departing from San Juan Luis Munoz Marin on Tue, Apr 29, arriving in San Diego International.Price includes taxes and charges.From $378, select.

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.

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Airports in San Diego

Compare routes to San Diego below. You may find an airport to fly into that's cheaper, faster, or easier.

Frequently asked questions

How many airports are there in San Diego?

There are 2 airports in San Diego: San Diego International and McClellan – Palomar.

Which airlines offer direct flights to San Diego?

Currently, there are no airlines that fly direct to San Diego. But we found flights with one or more stops from $341.

When is the cheapest time to fly to San Diego?

The cheapest month to fly to San Diego is usually May.

How can I find the best flight deal to San Diego?

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.

Can I get a direct flight to San Diego?

No airlines currently offer direct flights between Puerto Rico and United States. Most routes have one or more stops.

How much are round-trip flights to San Diego?

The best price we found for a round-trip flight to San Diego is $341. 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.

What's the cheapest airport in San Diego?

The cheapest airport near San Diego is San Diego International – which is 4.1 km away from the center of San Diego. We've found flights to this airport from $341.

Which upcoming date is cheapest to fly to San Diego on?

After crunching the numbers on our flight calendar, we found that the cheapest date to fly to San Diego is Friday, May 30, 2025.

When is the best time to book flights to San Diego?

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.

What’s the weather like in San Diego?

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.

Which is the cheapest airline to fly with to San Diego?

Currently, American Airlines offers the cheapest flight tickets to San Diego.

Flying to San Diego

The things to know before you go.

Cheapest flight found	$171
Cheapest month to fly	May

Discover San Diego

How to find cheap flights to San Diego

Looking for cheap tickets to San Diego? Here are a few tips on how to score the best price and make your journey as smooth as possible.

Simply hit "search." We've compared plane tickets from all major online travel agents and airlines flying to San Diego to find the cheapest flights. And with us, there are no hidden fees – what you see is what you pay.
Flex your dates to secure the best air ticket price for your San Diego flight. If your travel dates are flexible, use Skyscanner's "Whole month" tool to find the cheapest time to fly to San Diego.
Set up a Price Alert. You can easily track the fare of your flights to San Diego by creating an alert. Whenever prices go down or up, you'll get a push notification or email to help you get the best flight deal.
Compare flight deals to San Diego from over 1,000 providers. Then choose the cheapest plane tickets or fastest journeys.
Look for direct flights. Only interested in direct flights to San Diego? Make sure to tick "Direct flights only" when performing a search. If there are direct San Diego flights available, these will appear in the results.
Find the cheapest Business Class flights to San Diego. We scour the Internet for the best Business, Premium Economy, and First Class flight fares to San Diego, too. Check the difference in price as you search – you might just stumble on a last-minute low fare.
Include nearby airports in your search. Widen your search for San Diego flight deals by selecting the "add nearby airports" option. This will allow you to see flight prices for all the nearest airports at your departure point and your destination and could help you save next time you travel.

Combine your flight to San Diego with hotels and car rental

Once you've secured your cheap flight ticket to San Diego, discover the best prices and exclusive rates for hotels in San Diego or nearby. You can also compare hundreds of car rental companies at once so you get the best car rental price for your trip.

Compare San Diego plane tickets with other destinations using the everywhere search

Not quite set on flying to San Diego just yet? You can easily browse other destinations by searching flights to "Everywhere" – this will allow you to find the cheapest place to travel to.