United Cheap Flights from Cancun to San Diego

View €231 flight on Tue, 24 Mar 2026Opens in a new window

  • Be in the know

    Get alerts if flight prices drop or rise*

  • Book smarter

    Save up to 15% on select hotels after you book a flight*

  • Earn twice

    Earn your airline miles on top of our rewards
    Sign in

Prices were available within the past 7 days and start at €231 for one-way flights and for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Find the cheapest month to fly from Cancun (CUN) to San Diego (SAN)

September is typically the cheapest month to fly

From €219 - €418 per traveller.
Cancun to San Diego route information
Origin airport
Cancun Intl.
Destination airport
San Diego Intl.
Distance
3241 km

Frequently asked questions

How much is a United Airlines flight from Cancun Intl. Airport (CUN) to San Diego Intl. Airport (SAN)?
Make use of the "Price (lowest to highest)" filter on Expedia to look for cheap United Airlines return flights from CUN to SAN. Affordable one-way options from €231 are available as well.**These prices were available on Expedia within the past 7 days, for flights departing within the next year. Prices and availability are subject to change. Additional terms apply.
What is the cheapest month to fly from CUN to SAN with United Airlines?
United Airlines flights to San Diego are usually cheaper in the low-season months of January and November. Whether you're in search of a return or one-way ticket, you could score a better deal then.
Does United Airlines fly nonstop from Cancun Intl. Airport (CUN) to San Diego Intl. Airport (SAN)?
To figure out if there's a direct trip from CUN to SAN with United Airlines or any other carriers, check the "Nonstop" box when browsing for tickets.
What airports does United Airlines fly into in San Diego?
Jump on a United Airlines flight from Cancun Intl. Airport (CUN) to San Diego, and you'll likely come in to San Diego Intl. Airport (SAN). This is the airline's primary hub here.
Can I change or cancel my United Airlines flight from Cancun Intl. Airport (CUN) to San Diego Intl. Airport (SAN)?
Depending on the ticket type you purchased, a fee is typically charged if you change or cancel your flight more than 24 hours after confirmation. To find tickets with more flexibility, select our "Changes included" or "No cancel fee" filter when you look for flights. For more details on cancelling or modifying your reservation, go to "Trips," select your flight and tick "Manage Booking."

Explore a world of travel with Expedia

*Available to Expedia members.