Find a great deal and save up to 133% by booking at least 52 days prior to your desired departure date, rather than waiting until the week of travel. According to our data, there are a number of flights available from San Diego to Illinois within the next two weeks, with the cheapest ticket starting at $368.
Our data shows that September tends to be the cheapest month to fly to Illinois from San Diego. Users have commonly found prices around $400 for the month, but tickets can be as low as $133. Due to multiple factors, prepare for potentially higher prices in June.
When flying from San Diego to Illinois, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.
Fly from
Fly to
Budget
$76 - $256
Route
Depart
Return
Price
San DiegoChicago O'Hare Intl
SAN - ORD
SANORD
San Diego
Tue 6/4
1 stop7h 24m
Chicago O'Hare Intl
Tue 6/11
1 stop12h 33m
San DiegoChicago O'Hare Intl
SAN - ORD
SANORD
San Diego
Tue 6/4
1 stop12h 52m
Chicago O'Hare Intl
Tue 6/11
1 stop12h 33m
San DiegoLambert-St Louis
SAN - STL
SANSTL
San Diego
Wed 6/5
1 stop5h 15m
Lambert-St Louis
Wed 6/12
1 stop10h 32m
San DiegoChicago O'Hare Intl
SAN - ORD
SANORD
San Diego
Tue 5/21
1 stop12h 48m
Chicago O'Hare Intl
Wed 5/29
1 stop6h 35m
San DiegoChicago O'Hare Intl
SAN - ORD
SANORD
San Diego
Tue 6/4
2 stops34h 06m
Chicago O'Hare Intl
Tue 6/11
1 stop12h 33m
San DiegoLambert-St Louis
SAN - STL
SANSTL
San Diego
Wed 6/5
1 stop5h 15m
Lambert-St Louis
Wed 6/12
1 stop8h 35m
San DiegoChicago O'Hare Intl
SAN - ORD
SANORD
San Diego
Sat 6/1
1 stop6h 39m
Chicago O'Hare Intl
Tue 6/4
1 stop13h 10m
San DiegoChicago Midway
SAN - MDW
SANMDW
San Diego
Tue 5/21
1 stop9h 01m
Chicago Midway
Wed 5/29
1 stop13h 03m
San DiegoLambert-St Louis
SAN - STL
SANSTL
San Diego
Fri 6/14
1 stop5h 43m
Lambert-St Louis
Sat 6/22
1 stop9h 51m
No data available for this route at this time. Please check back soon.
Overall
Boarding
Comfort
Food
Entertainment
Crew
Reviews
I was very relaxed and calm so I took a brief nap. The flight was pretty smooth.
Overall
Boarding
Comfort
Food
Entertainment
Crew
Reviews
I was very relaxed and calm so I took a brief nap. The flight was pretty smooth.
Overall
Boarding
Comfort
Food
Entertainment
Crew
Reviews
I was very relaxed and calm so I took a brief nap. The flight was pretty smooth.
Overall
Boarding
Comfort
Food
Entertainment
Crew
Reviews
I was very relaxed and calm so I took a brief nap. The flight was pretty smooth.
Overall
Boarding
Comfort
Food
Entertainment
Crew
Reviews
I was very relaxed and calm so I took a brief nap. The flight was pretty smooth.
Overall
Boarding
Comfort
Food
Entertainment
Crew
Reviews
I was very relaxed and calm so I took a brief nap. The flight was pretty smooth.
1%of flight departures | Early morningMidnight to 6 am |
---|---|
69%of flight departures | Morning6 am to noon |
24%of flight departures | AfternoonNoon to 6 pm |
6%of flight departures | Evening6 pm to midnight |
Cheapflights goes through 900+ travel sites to look for the best flight deals for flights from San Diego to Illinois. Too many options? Cheapflights also provides filters for things like airlines, price ranges, and number of stops to help you make a decision easily.
By finding flights from multiple airlines and providers at completely no cost, Cheapflights helps millions of users like you annually find the best flights to Illinois from San Diego.
Yes, we can. To see specific flights from San Diego to Illinois with no change fees, users can toggle flexible booking options after using the search form above to find flights.
Yes, Cheapflights offers price alerts on San Diego to Illinois flights so you can book your travel at the perfect time. Price Alerts can be enabled by clicking the bell icon next to the flight deals above and providing your email address where you want to receive the alerts.