฿4,945 Cheap Delta flights from Chicago to San Diego (ORD→SAN)

Finding cheap one-way Delta Air Lines flights from ORD to SAN from ฿4,945 on Expedia is easy — just filter by "Price (lowest to highest)." Or check out our budget-friendly return fares for your next exciting adventure.*

*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.

Look for one-way or round-trip flights to San Diego in January or November. You could find cheaper fares with Delta Air Lines during these off-peak months.

Use the "Nonstop" filter when browsing for direct Delta Air Lines flights from ORD to SAN. You'll also be able to compare other carriers offering the same nonstop journey.

San Diego Intl. Airport (SAN) is the primary San Diego gateway for Delta Air Lines flights from O'Hare Intl. Airport (ORD).

Depending on the type of fare you purchased, a fee may apply if you change or cancel your booking more than 24 hours after it has been confirmed. To secure plane tickets with more flexibility, select our "Changes included" and "No cancel fee" boxes when looking for flights. For more details on changing or cancelling your reservation, go to "Trips," select your flight and click on "Manage Booking."