Spirit Airlines is selling cheap flights from Chicago to San Diego for as low as $52 return! That works out to a cost of just 1.5 Cents Per Mile for this 3400 mile journey.

The fare only includes a small carry-on bag placed under the seat, and you need to pay extra if you want to use the overhead storage or to check bags.

Our data shows the lowest prices are available in February 2021. See the link(s) below for dates and prices.

Sample date(s) with Skyscanner.com booking link

Jan 20 – Jan 23 ($59)

Jan 22 – Jan 26 ($70)

Jan 23 – Jan 27 ($62)

Jan 27 – Jan 30 ($67)

Feb 10 – Feb 17 ($52)

Feb 11 – Feb 24 ($148)

Feb 14 – Feb 24 ($148)

Feb 17 – Feb 28 ($148)

Feb 22 – Feb 28 ($148)

Feb 23 – Feb 28 ($148)

Are you looking for an apartment to rent for your stay in San Diego? Check out what Vrbo.com has to offer!

We post many cheap flights like this one from Chicago to San Diego every single day, so have a look at our Travel Deals page, or check out the related posts below!

Note: Prices are valid at the time of publishing this post, but may change in the future.

COVID-19 Note: During these uncertain times, please make sure to check the relevant Coronavirus restrictions for your destination before you book and before you fly. We recommend also checking the refund policy of the airline, as well as purchasing travel insurance for your trip.