Cheap flights from Illinois (IL) to San Diego (SAN)

Flight FAQs

From Illinois to San Diego

Are flight prices decreasing from Illinois 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 Illinois 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 Illinois to San Diego for under $100 on Cheapflights?

Yes, there are multiple flights from Illinois to San Diego for under $100. The cheapest flight booked recently is on Spirit Airlines for just $74, but on average you can expect to pay $92.

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

Cheapflights has at least 3 direct flights from Illinois to San Diego under $100. A good price for a nonstop flight from Illinois to San Diego is less than $81.

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

There are currently 6+ open flights from Illinois to San Diego within the next 7 days for less than $200.

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

You can find nonstop flights on the following days: Sunday, Monday, Tuesday.

How popular is this flight route?

This flight path from Illinois to San Diego was viewed by 401 users in the past month. Keep an eye out for changes in search interest prior to high and low season.

What are the most popular airlines that fly from Illinois to San Diego?

Before booking your flight from Illinois to San Diego check out the most popular airlines for this route: American Airlines, Delta or Frontier.

What are the most popular routes from Illinois to San Diego?

When deciding which route to take from Illinois to San Diego consider Chicago O'Hare Intl - San Diego, Chicago Midway - San Diego or Moline Quad-City - San Diego as they are the most popular.

What are the cheapest Flights from Illinois to San Diego?

On average you can expect to pay $249 for a flight from Illinois to San Diego. The cheapest flight overall is $64 while the most popular route, (Chicago O'Hare Intl - San Diego) is currently priced at $73.

What are the most reliable airlines from Illinois to San Diego?

The top 3 most reliable airlines when flying from Illinois to San Diego are Spirit Airlines (96%), Brussels Airlines (86%) and Austrian Airlines (85%).