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Cheap flights from Chicago to San Diego (CHI - SAN)

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The best prices from Chicago to San Diego are usually found in May or September, booked 31 days in advance, depart on a Tuesday or Wednesday and return on a Thursday

How to find the cheapest flight from
Chicago (CHI) to San Diego (SAN)

CHI - SAN
Price
$209 - $324
SAN
Temperature
66.2 - 80.6 °F
SAN
Rainfall
0 - 2.8 inches
Popular in December High demand for flights, 23% potential price rise
Cheapest in May Best time to find cheap flights, 16% potential price drop
Round-trip from $209 From Chicago to San Diego
One-way from $35 One-way flight from Chicago to San Diego
Flight route prices based on searches on Cheapflights within the last 3 days, monthly prices based on aggregated historical data.
What is the cheapest day to fly round-trip from Chicago to San Diego?

Saturday flights are found to be more expensive to fly from Chicago to San Diego. This shouldn’t discourage you from searching, as you can still find great deals by being flexible with your options. Use our search form to find deals on tickets to San Diego.

How far in advance should I book a flight from Chicago to San Diego?

Travelers have found it’s best to book a flight 33 days in advance to save up to 19% compared to booking the same week of travel. As your travel date approaches, the cost of this flight route may potentially increase. While opting to book 33 days out may not be an option for all, there are still additional ways to secure a deal in the near future. You might find a flight from Chicago to San Diego 1-2 weeks in advance for as low as $86, or $107 for flights within the next 24 hours.

What is the cheapest month to fly from Chicago to San Diego?

The best pricing can be found in the month of May. Prices to San Diego from Chicago average $98. You can even find prices in May for less than $98, as users have found deals to San Diego from as low as $58. The month of March appears to be one of the more expensive times to travel to San Diego from Chicago. Flying in the targeted month can save you up to 22%.

Cheap flights from Chicago to San Diego in July, August 2020

The best prices found for CHI to SAN flights for July, August
21 Jul - 28 Jul
$72pp
ORD
Chicago O'Hare Intl
Spirit Airlines
Non-Stop
SAN
San Diego
SAN
San Diego
Spirit Airlines
Non-Stop
ORD
Chicago O'Hare Intl
21 Jul - 28 Jul
$73pp
ORD
Chicago O'Hare Intl
Spirit Airlines
Non-Stop
SAN
San Diego
SAN
San Diego
Spirit Airlines
Non-Stop
ORD
Chicago O'Hare Intl
24 Jul - 27 Jul
$74pp
ORD
Chicago O'Hare Intl
Spirit Airlines
Non-Stop
SAN
San Diego
SAN
San Diego
Spirit Airlines
Non-Stop
ORD
Chicago O'Hare Intl

Chicago to San Diego 2020 flight deals

Cheap flights to San Diego from Chicago found for this year
21 Jul - 28 Jul
$72pp
ORD
Chicago O'Hare Intl
Spirit Airlines
Non-Stop
SAN
San Diego
SAN
San Diego
Spirit Airlines
Non-Stop
ORD
Chicago O'Hare Intl
21 Jul - 28 Jul
$73pp
ORD
Chicago O'Hare Intl
Spirit Airlines
Non-Stop
SAN
San Diego
SAN
San Diego
Spirit Airlines
Non-Stop
ORD
Chicago O'Hare Intl
24 Jul - 27 Jul
$74pp
ORD
Chicago O'Hare Intl
Spirit Airlines
Non-Stop
SAN
San Diego
SAN
San Diego
Spirit Airlines
Non-Stop
ORD
Chicago O'Hare Intl

Non-stop flights to San Diego from Chicago

Save time with Chicago to San Diego direct flight deals
21 Jul - 28 Jul
$72pp
ORD
Chicago O'Hare Intl
Spirit Airlines
Non-Stop
SAN
San Diego
SAN
San Diego
Spirit Airlines
Non-Stop
ORD
Chicago O'Hare Intl
21 Jul - 28 Jul
$73pp
ORD
Chicago O'Hare Intl
Spirit Airlines
Non-Stop
SAN
San Diego
SAN
San Diego
Spirit Airlines
Non-Stop
ORD
Chicago O'Hare Intl
24 Jul - 27 Jul
$74pp
ORD
Chicago O'Hare Intl
Spirit Airlines
Non-Stop
SAN
San Diego
SAN
San Diego
Spirit Airlines
Non-Stop
ORD
Chicago O'Hare Intl

Last minute flights from Chicago to San Diego

Late deals on round-trip flights to San Diego from Chicago, departing today and this week
28 Jun - 2 Jul
$133pp
ORD
Chicago O'Hare Intl
Spirit Airlines
Non-Stop
SAN
San Diego
SAN
San Diego
Spirit Airlines
Non-Stop
ORD
Chicago O'Hare Intl
28 Jun - 4 Jul
$154pp
ORD
Chicago O'Hare Intl
Multiple Airlines
 
1 STOP
SAN
San Diego
SAN
San Diego
Spirit Airlines
 
1 STOP
ORD
Chicago O'Hare Intl
25 Jun - 16 Jul
$156pp
ORD
Chicago O'Hare Intl
Spirit Airlines
Non-Stop
SAN
San Diego
SAN
San Diego
Spirit Airlines
Non-Stop
ORD
Chicago O'Hare Intl

One-way flights to San Diego from Chicago

The cheapest one-way flights from Chicago to San Diego
7:58 am - 10:05 am
Spirit Airlines
Nonstop
4h 07m
ORD - SAN
Spirit Airlines
$35
Vayama
7:58 am - 10:05 am
Spirit Airlines
Nonstop
4h 07m
ORD - SAN
Spirit Airlines
$36
FlightNetwork
7:58 am - 10:05 am
Spirit Airlines
Nonstop
4h 07m
ORD - SAN
Spirit Airlines
$37
FlightNetwork

Related info for your journey

Useful info, stats and facts about Chicago to San Diego flights.

Flight FAQs

From Chicago to San Diego

Are flight prices decreasing from Chicago to San Diego due to COVID-19 (coronavirus)?

At this time, Cheapflights has noticed price decreases for many domestic flights due to COVID-19. Travel is not necessarily recommended at this time, and flights may be prone to cancellation: please check with local authorities in both Chicago and San Diego for travel alerts, and be sure to review the airline's cancellation policy and travel advisories before booking. For more information, please view our post on what to know about COVID-19 (coronavirus) and travel.

Can I find flights from Chicago to San Diego for under $100 on Cheapflights?

Yes, there are multiple flights from Chicago to San Diego for under $100. The cheapest flight booked recently is on Spirit Airlines for just $72, but on average you can expect to pay $83.

Are there nonstop flights from Chicago to San Diego for under $100 on Cheapflights?

Cheapflights has at least 20 direct flights from Chicago to San Diego under $100. A good price for a nonstop flight from Chicago to San Diego is less than $85.

Are there last-minute flights available from Chicago to San Diego for under $200?

There are currently 20+ open flights from Chicago to San Diego within the next 7 days for less than $200.

What days are nonstop flights available from Chicago to San Diego?

You can find nonstop flights on the following days: Thursday.

How popular is this flight route?

This flight path from Chicago to San Diego was viewed by 486 users in the past month. Keep an eye out for changes in search interest prior to high and low season.

What is the cheapest airline for this route?

When searching, try setting your filters to view flights for United Parcel Service, Inc., as currently they have the cheapest options available from Chicago to San Diego. On average you can find 15 flights for this flight path daily.

How long does the flight from Chicago to San Diego take?

For nonstop trips expect to fly for about 5 hours. The travel distance is approximately 1,077 miles.

How many flights depart from Chicago to San Diego on average per day?

2 flight departures from Chicago to San Diego per day on average.
Morning (6am - Noon) - 50% of flight departures
Evening (6pm - Midnight) - 50% of flight departures

Is Chicago weather warmer or cooler than San Diego?

Expect the weather to be around 84 °F on average in July. As the temperature peaks, try to get your plans done early, as flight price and availability will have an impact on your travels. The climate in San Diego is generally colder than in Chicago.

Alternative routes for Chicago to San Diego

Destination information for San Diego

Things to know before you go. Useful info for your trip from Chicago to San Diego
Flight duration
4h 10m
Average temperature for July in San Diego
78.8 °F
Avg rainfall for July in San Diego
0.1 ″

Airports servicing Chicago

Chicago Midway (MDW)
Rockford (RFD)

Airports servicing San Diego

Hourly flight availability from Chicago to San Diego

Afternoon Noon to 6 PM 54% of CHI to SAN departures
Morning 6 AM to noon 30% of CHI to SAN departures
Evening 6 PM to midnight 15% of CHI to SAN departures
Early morning Midnight to 6 AM 1% of CHI to SAN departures
Midnight
6 AM
Noon
6 PM
Weekly flight availability
from Chicago to San Diego
Sunday
13 daily flights
Monday
8 daily flights
Tuesday
5 daily flights
Wednesday
11 daily flights
Thursday
14 daily flights
Friday
14 daily flights
Saturday
9 daily flights