
Popular airlines from Chicago to San Diego, CA (SAN-San Diego Intl.)
- Alaska Airlines
Alaska Airlines
- Southwest Airlines
Southwest Airlines
- Delta
Delta
- Frontier Airlines
Frontier Airlines
- Spirit Airlines
Spirit Airlines
- American Airlines
American Airlines
- United
United
- Plan, book, fly with confidence
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Cheap Flights from Chicago (CHI) to San Diego (SAN)
Prices were available within the past 7 days and start at ฿4,180 for one-way flights and ฿13,780 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.










Find the cheapest month to fly from Chicago (CHI) to San Diego (SAN)
September is typically the cheapest month to fly
Graph displaying average flight prices per month
Origin airport | O'Hare Intl. |
Destination airport | San Diego Intl. |
Return price | ฿13,780 |
Distance | 2752 km |
Illinois to San Diego Flights
Sometimes you just need to get out of town or maybe you’re looking for a change of scenery. Regardless of the reason, a flight from Illinois to San Diego will do just the trick! Go on, plan to see all the famous landmarks and eat your weight in the local cuisine. Your trip is beckoning, so answer the call by packing your suitcase and filling your travel itinerary with exploring San Diego.
Whether you’re flying for business or jet-setting on your personal time, you’ve come to the right place. Here at Expedia.com, we’ll pair you up with CHI to SAN flights that won’t make your bank account wince. Ready to temporarily leave behind Illinois for new horizons? Browse through our cheap airfare, and filter by flight times and dates until you find just what you had in mind. From flights without layovers to ones that arrive early in the morning, you’ll come across plane tickets that suit your travel preferences. You can even bundle your flight to SAN with hotels and car rentals to score even bigger savings.
All set to hit the clouds? Book your travel arrangements with us today and have left-over money to put toward your travel outings and adventures.
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Top Routes to San Diego
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Top Routes to San Diego
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