United Cheap Flights from Shannon to San Diego

You can discover cheap return United Airlines flights €941 from SNN to SAN by filtering your results from "Price (lowest to highest)" on Expedia. Or search for bargains from €1,221 for a one-way trip.*

*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.

January is one of the most affordable months to travel to San Diego with United Airlines. You could also find excellent prices on one-way and return fares in November.

To see if there's a direct journey from SNN to SAN with United Airlines or another airline, check the "Nonstop" box when searching for tickets.

Board a United Airlines flight from Shannon Airport (SNN) to San Diego, and you'll most likely touch down at San Diego Intl. Airport (SAN). This is the airline's main hub in this city.

It's generally possible to reschedule or cancel your flight, although additional fees may apply if you booked more than 24 hours ago. Prefer to keep your options open? Apply the "No cancel fee" and "Changes included" filters to find flights that won't charge extra if you have to alter your plans. To modify your booking, head to "Trips," select your flight and click on "Manage Booking" for more details.