Cheap Flights From O'Hare Intl. (ORD) To San Diego Intl. (SAN)

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Cheapest Flights from Chicago (ORD) to San Diego (SAN)

The cheapest flights to San Diego Intl. found within the past 7 days were CA $213 round trip and CA $97 one way. Prices and availability subject to change. Additional terms may apply.

Mon., 24 Feb. - Mon., 3 Mar.
ORD
Chicago
SAN
San Diego
CA $213 Roundtrip, found 20 hours ago
CA $213
Roundtrip
found 20 hours ago
Select Spirit Airlines flight, departing Mon., 24 Feb. from Chicago to San Diego, returning Mon., 3 Mar., priced at CA $213 found 20 hours ago
Sat., 18 Jan. - Sat., 25 Jan.
ORD
Chicago
SAN
San Diego
CA $233 Roundtrip, found 4 days ago
CA $233
Roundtrip
found 4 days ago
Select Spirit Airlines flight, departing Sat., 18 Jan. from Chicago to San Diego, returning Sat., 25 Jan., priced at CA $233 found 4 days ago
Sat., 18 Jan. - Sat., 25 Jan.
ORD
Chicago
SAN
San Diego
CA $267 Roundtrip, found 4 days ago
CA $267
Roundtrip
found 4 days ago
Select Spirit Airlines flight, departing Sat., 18 Jan. from Chicago to San Diego, returning Sat., 25 Jan., priced at CA $267 found 4 days ago
Mon., 24 Feb. - Mon., 3 Mar.
ORD
Chicago
SAN
San Diego
CA $269 Roundtrip, found 20 hours ago
CA $269
Roundtrip
found 20 hours ago
Select Spirit Airlines flight, departing Mon., 24 Feb. from Chicago to San Diego, returning Mon., 3 Mar., priced at CA $269 found 20 hours ago
Sun., 19 Jan. - Fri., 24 Jan.
ORD
Chicago
SAN
San Diego
CA $277 Roundtrip, found 21 hours ago
CA $277
Roundtrip
found 21 hours ago
Select Spirit Airlines flight, departing Sun., 19 Jan. from Chicago to San Diego, returning Fri., 24 Jan., priced at CA $277 found 21 hours ago
Mon., 24 Feb. - Mon., 3 Mar.
ORD
Chicago
SAN
San Diego
CA $292 Roundtrip, found 20 hours ago
CA $292
Roundtrip
found 20 hours ago
Select Spirit Airlines flight, departing Mon., 24 Feb. from Chicago to San Diego, returning Mon., 3 Mar., priced at CA $292 found 20 hours ago
Mon., 24 Feb. - Mon., 3 Mar.
ORD
Chicago
SAN
San Diego
CA $293 Roundtrip, found 20 hours ago
CA $293
Roundtrip
found 20 hours ago
Select Alaska Airlines flight, departing Mon., 24 Feb. from Chicago to San Diego, returning Mon., 3 Mar., priced at CA $293 found 20 hours ago
Sun., 19 Jan. - Fri., 24 Jan.
ORD
Chicago
SAN
San Diego
CA $301 Roundtrip, found 21 hours ago
CA $301
Roundtrip
found 21 hours ago
Select Spirit Airlines flight, departing Sun., 19 Jan. from Chicago to San Diego, returning Fri., 24 Jan., priced at CA $301 found 21 hours ago
Sun., 19 Jan. - Fri., 24 Jan.
ORD
Chicago
SAN
San Diego
CA $311 Roundtrip, found 21 hours ago
CA $311
Roundtrip
found 21 hours ago
Select Spirit Airlines flight, departing Sun., 19 Jan. from Chicago to San Diego, returning Fri., 24 Jan., priced at CA $311 found 21 hours ago
Sun., 19 Jan. - Fri., 24 Jan.
ORD
Chicago
SAN
San Diego
CA $336 Roundtrip, found 21 hours ago
CA $336
Roundtrip
found 21 hours ago
Select Spirit Airlines flight, departing Sun., 19 Jan. from Chicago to San Diego, returning Fri., 24 Jan., priced at CA $336 found 21 hours ago

Frequently asked questions

Are there direct flights from ORD to San Diego Intl. Airport (SAN)?
Your next unforgettable adventure is on the other side of a single flight. You can fly direct from O’Hare Intl. Airport (ORD) to San Diego Intl. Airport (SAN) with multiple airlines, including United Airlines and American Airlines.
What airlines fly from O'Hare Airport to San Diego Intl. Airport (SAN)?
You have a choice of a number of airlines that offer direct flights between Chicago and San Diego County. United Airlines (UA) is one of the most well-known. This carrier operates roughly 147 flights each month. You should also look into the deals on offer from American Airlines (AA). Another leading airline, it operates 104 flights monthly on the Chicago to San Diego County route. Compare the two to find your ideal fare.
What is the best day to buy a plane ticket?
Airfares offered on Friday tend to be the cheapest, according to flight demand on Travelocity.ca in 2021. Purchasing your airfares on a Thursday or Saturday can also provide better value, however our advice if you’re looking to save money is to avoid booking on a Wednesday or Sunday. Our data shows that those two days have the highest ticket values on average, so keep this in mind if you’re browsing flight deals.
What are the cheapest days to fly?
Frequent travellers may already know this, but earlier in the week is often the cheapest time to fly. Flights departing on a Monday are the cheapest of the week. Since flights towards the middle of the week tend to be more popular, this causes the prices to rise. This is why, on average, airfares booked on Travelocity.ca in 2021 were most expensive for Wednesday departures.
How far in advance can you book a flight?
Here’s the deal: It is typically possible to start comparing international airfares on Travelocity.ca up to 12 months in advance. However, it does depend on the carrier as not all airlines release their prices that far out. According to our 2021 flight demand trends, last minute planners can still bag a bargain with some of the cheapest fares appearing 2-4 weeks prior to their travel dates.*According to flight demand on Travelocity.ca from January to December 2021. Savings are subject to change and may vary depending on selections made.
*Price based on the lowest price found within past 24 hours and based upon one night stay for two adults over the next thirty days. Prices and availability subject to change. Additional terms may apply.