฿6,600 Cheap Flights from Chicago (CHI) to San Diego (SAN)

View ฿6,600 flight on Mon, 1 Dec 2025Opens in a new window

Popular airlines from Chicago to San Diego, CA (SAN-San Diego Intl.)

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Cheap Flights from Chicago (CHI) to San Diego (SAN)

Prices were available within the past 7 days and start at ฿6,600 for one-way flights and ฿13,780 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Delta
Sun, 12 Oct - Thu, 16 Oct
ORD
Chicago
SAN
San Diego
฿13,780 Return, found 20 hours ago
฿13,780
Return
found 20 hours ago
Select Delta flight, departing Sun, 12 Oct from Chicago to San Diego, returning Thu, 16 Oct, priced at ฿13,780 found 20 hours ago
United
Sun, 12 Oct - Thu, 16 Oct
ORD
Chicago
SAN
San Diego
฿14,920 Return, found 20 hours ago
฿14,920
Return
found 20 hours ago
Select United flight, departing Sun, 12 Oct from Chicago to San Diego, returning Thu, 16 Oct, priced at ฿14,920 found 20 hours ago
Delta
Sun, 12 Oct - Thu, 16 Oct
ORD
Chicago
SAN
San Diego
฿15,105 Return, found 20 hours ago
฿15,105
Return
found 20 hours ago
Select Delta flight, departing Sun, 12 Oct from Chicago to San Diego, returning Thu, 16 Oct, priced at ฿15,105 found 20 hours ago
Delta
Sun, 12 Oct - Thu, 16 Oct
ORD
Chicago
SAN
San Diego
฿15,240 Return, found 20 hours ago
฿15,240
Return
found 20 hours ago
Select Delta flight, departing Sun, 12 Oct from Chicago to San Diego, returning Thu, 16 Oct, priced at ฿15,240 found 20 hours ago
Delta
Sun, 12 Oct - Thu, 16 Oct
ORD
Chicago
SAN
San Diego
฿15,310 Return, found 20 hours ago
฿15,310
Return
found 20 hours ago
Select Delta flight, departing Sun, 12 Oct from Chicago to San Diego, returning Thu, 16 Oct, priced at ฿15,310 found 20 hours ago
Delta
Sun, 12 Oct - Thu, 16 Oct
ORD
Chicago
SAN
San Diego
฿15,630 Return, found 20 hours ago
฿15,630
Return
found 20 hours ago
Select Delta flight, departing Sun, 12 Oct from Chicago to San Diego, returning Thu, 16 Oct, priced at ฿15,630 found 20 hours ago
Delta
Sun, 12 Oct - Thu, 16 Oct
ORD
Chicago
SAN
San Diego
฿15,635 Return, found 20 hours ago
฿15,635
Return
found 20 hours ago
Select Delta flight, departing Sun, 12 Oct from Chicago to San Diego, returning Thu, 16 Oct, priced at ฿15,635 found 20 hours ago
American Airlines
Sun, 12 Oct - Thu, 16 Oct
ORD
Chicago
SAN
San Diego
฿16,050 Return, found 20 hours ago
฿16,050
Return
found 20 hours ago
Select American Airlines flight, departing Sun, 12 Oct from Chicago to San Diego, returning Thu, 16 Oct, priced at ฿16,050 found 20 hours ago
United
Sun, 12 Oct - Thu, 16 Oct
ORD
Chicago
SAN
San Diego
฿16,060 Return, found 20 hours ago
฿16,060
Return
found 20 hours ago
Select United flight, departing Sun, 12 Oct from Chicago to San Diego, returning Thu, 16 Oct, priced at ฿16,060 found 20 hours ago
United
Sun, 12 Oct - Thu, 16 Oct
ORD
Chicago
SAN
San Diego
฿16,210 Return, found 20 hours ago
฿16,210
Return
found 20 hours ago
Select United flight, departing Sun, 12 Oct from Chicago to San Diego, returning Thu, 16 Oct, priced at ฿16,210 found 20 hours ago

Find the cheapest month to fly from Chicago (CHI) to San Diego (SAN)

February is typically the cheapest month to fly

From ฿3,018 - ฿11,208 per traveller.

Frequently asked questions

How much is a flight from Chicago, IL (CHI-All Airports) to San Diego Airport?
Based on fares listed within the last 7 days on Expedia for flights departing within the next year, round-trip flights between Chicago, IL (CHI-All Airports) and SAN start from ฿13,780. Book now to secure the best price for your journey. Prices and availability are subject to change. Additional terms apply.
Do I need to pay a cancellation fee if I cancel my flight from Chicago, IL (CHI-All Airports) to San Diego Intl. Airport (SAN)?
Most flights can be cancelled online, but whether you incur a fee differs between airlines. If you do have to cancel your break, follow the instructions in the Customer Service Portal.
How do I find cheap flights from Chicago, IL (CHI-All Airports) to San Diego Intl. Airport (SAN) that have flexible change policies?
Many airlines offer the option to reschedule your flight without a change fee. All you pay is the difference between the original flight and the new flight. When you're searching for Chicago, IL (CHI-All Airports) to San Diego Airport flights, you'll see a "no change fees" filter for you to select.
How far is the flight from Chicago, IL (CHI-All Airports) to San Diego Intl. Airport (SAN)?
The flying distance between Chicago, IL (CHI-All Airports) and San Diego Airport is 2,700 kilometres. Listen to your favourite tunes or get stuck into a book and the journey will zip by.
Which airlines fly direct from Chicago, IL (CHI-All Airports) to San Diego Intl. Airport (SAN)?
One airline that flies from Chicago, IL (CHI-All Airports) to San Diego Intl. Airport (SAN) is United Airlines (UA). It offers 121 flights monthly. You could also take a look at ticket prices with American Airlines (AA). This carrier operates 91 monthly flights between Illinois and San Diego.
Are Chicago, IL (CHI-All Airports) to San Diego Intl. Airport (SAN) flight tickets cheaper when they're purchased at the last minute?
Tickets from Chicago, IL (CHI-All Airports) to San Diego Intl. Airport (SAN) are available up to a year prior to departure on Expedia. And although you may pick up great last-minute deal, it's not something you should count on. Also, booking your flights ahead of time means you'll have more options — and you can avoid getting caught in the dreaded middle seat! We're always updating our fares to make sure you get the biggest bargains, so keep checking in for all the latest specials.

Travel information

Travel information

Origin airport
O'Hare Intl.
Destination airport
San Diego Intl.
Airlines serving
American Airlines, Delta, United
Return price
฿13,780
Distance
2752 km

Book with confidence

Book with confidence

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.

Illinois to San Diego Flights

Explore a world of travel with Expedia

Explore a world of travel with Expedia

Chicago Airports

Chicago

O'Hare Intl. to San Diego
฿13,780.00
*Available to Expedia members.