43% OFF Cheap Flights from Illinois to San Diego (SAN)

Expected price increase 20%
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Average price per month


  • Low Season: January
  • High Season: June
  • Prices for this route are volatile and fluctuate from month to month.
  • The cheapest flights are usually bought in January, September and December.
  • High season months are April, May and June. However, it's not the rule and you should always search current flight deals.
  • For example, the flight from Illinois to San Diego is currently 43% cheaper than average.

Price increase as travel date approaches


  • Flight prices for this route increase by 49% if you book last minute. Hover on the graph above to see for yourself!.
  • To grab the lowest price possible, you should buy your flight around 28 days before departure!
  • Consider booking at least 15 days before departure to increase your chances of getting a low price.
  • Generally, it's safe to book between 90 and 60 days in advance.

Illinois to San Diego Flight Information

Flights Depart FromIllinois (ORD)
Flights Arriving ToSan Diego (SAN)
Distance2769.49 km
Current Discount43 %
Average Price $149.5
Good Deal $68.44
Cheapest AirlinesAmerican Airlines, Spirit Airlines, United Airlines
Popular AirlinesAmerican Airlines, United Airlines, Spirit Airlines
Flight Duration03 hours 50 minutes
Flights Depart From
Illinois (ORD)
Flights Arrive In
San Diego (SAN)
Distance
2769.49 km
Flight Duration
03 hours 50 minutes
Current Discount
43 %
Average Price
$149.5
Good Deal
$68.44
Cheapest Airlines
American Airlines, Spirit Airlines, United Airlines
Popular Airlines
American Airlines, United Airlines, Spirit Airlines

Most Reliable Airlines flying to San Diego

Airline Overall Rating On time arrival Check-in & Boarding Cleanliness Customer Service Food & Beverage Entertainment Legroom Seat Comfort
American Airlines American Airlines 3.3 4.0 3.5 3.5 3.5 3.0 3.0 3.5 3.0
United Airlines United Airlines 3.3 4.0 3.5 3.5 3.5 3.0 3.0 3.0 3.0
Spirit Airlines Spirit Airlines 2.8 4.5 3.0 3.5 3.0 2.0 1.5 2.5 2.5
Overall Rating
3.5
On time arrival
4.0
Check-in & Boarding
3.5
Cleanliness
3.5
Customer Service
3.5
Food & Beverage
3.0
Entertainment
3.0
Legroom
3.5
Seat Comfort
3.0
Overall Rating
3.5
On time arrival
4.0
Check-in & Boarding
3.5
Cleanliness
3.5
Customer Service
3.5
Food & Beverage
3.0
Entertainment
3.0
Legroom
3.0
Seat Comfort
3.0
Overall Rating
3.0
On time arrival
4.5
Check-in & Boarding
3.0
Cleanliness
3.5
Customer Service
3.0
Food & Beverage
2.0
Entertainment
1.5
Legroom
2.5
Seat Comfort
2.5

Good to know:


  • San Diego International Airport is the major airport in San Diego and surrounding area.

Enter your preferred departure airport and travel dates into the search form above to unlock the latest San Diego flight deals.

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Did you know that you could find even better deals when you use our Mobile App?.

How to get the cheapest flight to San Diego?

Currently there is a 43% discount on flights to San Diego. This price won't stay too long and you should consider buying now.

Flight prices for this route are expected to go up by 20%.

Search and compare flight options now!.

Awesome Deals

notifications_active In the past few days the following airlines offered the lowest prices from Illinois to San Diego: American Airlines, Spirit Airlines and United Airlines..

Top Destination Hotels Of The Day ()

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Inexpensive Cars in San Diego

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Frequently Asked Questions

  • How long is a direct flight from Illinois to San Diego?A direct flight from Illinois to San Diego takes roughly 03 hours 50 minutes.
  • How many direct flights are there between Illinois to San Diego daily?On average, there are 91 direct flights from Illinois to San Diego each day.
  • Which airlines offer cheap airfare from Illinois to San Diego?That may change at any time. But in the past 14 days, the cheapest tickets we've found were with American Airlines, Spirit Airlines and United Airlines.
  • Do I need my passport to fly from Illinois to San Diego?Nope, not this time.
  • Which airlines fly from Illinois to San Diego most often?American Airlines, United Airlines and Spirit Airlines are the top.
  • What's the cheapest day to fly from Illinois to San Diego?That depends. Recently, the cheapest day to fly from Illinois to San Diego has been Thursday. And the cheapest return flight from Thursday has been. That said, the cheapest departure days are constantly changing.
  • Which airport will I be flying from in Illinois?When departing from Illinois you'll be flying out of Chicago O'hare International.
  • Which airport will I be flying from in San Diego?When departing from San Diego you'll be flying out of San Diego International Airport.
  • How is Justfly.com so good at finding cheap flights?We've taken an oath of secrecy and vowed never to say. Just kidding. Our team and technology allows us to browse through hundreds of airlines and hundreds of thousands of flights to find the lowest prices. Then we pass the savings on to you.
  • Can Justfly.com help me save money in any other way?We're glad you asked. We help you save money with our Fare Alerts, Price Trend charts and multi-ticket bookings. We also help you save on hotels and car rentals.
  • How many airlines does Justfly.com search to find affordable flights?We typically search over 400 airlines.
  • Can Justfly.com's Price Trend tool really tell me the best time to buy tickets?Absolutely! That's why we've made it accessible to you.
  • Will the price of my flight change?Flight prices and availability change often. To counter this, we update the important data as often as possible every step of the way.
  • How will I receive my booking confirmation and travel information?We'll send you an email with the important details!
  • Can you cancel or change Justfly.com flights?You sure can. But give us a call first. We'll do our best to find a solution. However, in some cases, if we cancel your booking, we'll have to charge an administrative fee of $75 (domestic), $125 (trans-border between Canada and USA) and $200 (international).
  • Are Justfly.com's tickets refundable?All bookings are currently non-refundable.
  • How do I contact Justfly.com?We're here to help. Give us a call at 1-800-717-5015.