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.

What safety measures are being taken by airlines flying from Illinois to San Diego to control the spread of COVID-19?

Airlines globally have implemented additional safety measures to accommodate you. Alaska Airlines, Southwest, and Delta are some of the many airlines that have done so. Some of the new policies that have been implemented to accommodate travelers flying from Illinois to San Diego are improved sanitation, HEPA filters, mask requirements, social distance seating (for a limited time), and pre-flight testing for antibodies and symptoms. Policies will vary by airline.

Which airlines flying from Illinois to San Diego have flexible cancellations due to COVID-19?

Some of our airline partners flying from Illinois to San Diego have new flexible policies in place due to COVID-19. Spirit Airlines, American Airlines, and United Airlines are some of the carriers where you may find flexible cancellation policies. You can use our site to filter for airlines like Spirit Airlines with this kind of flexibility.

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 Frontier for just $53, but on average you can expect to pay $71.

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

Cheapflights has at least 20 direct flights from Illinois to San Diego under $100. A good price for a nonstop flight from Illinois to San Diego is less than $86.

Are there last-minute flights available from Illinois to San Diego for under $100?

There are currently 20+ open flights from Illinois to San Diego within the next 7 days for less than $100.

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

You can find nonstop flights on the following days: Sunday, Tuesday, Thursday, Friday, Saturday.

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: Major Airline, American Airlines or Alaska Airlines.

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 Springfield Capital - 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 $218 for a flight from Illinois to San Diego. The cheapest flight overall is $88 while the most popular route, (Chicago O'Hare Intl - San Diego) is currently priced at $55.

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 Brussels Airlines (100%), Gulf Air (100%) and Alaska Airlines (97%).

How long is the flight from Illinois to San Diego?

A quick flight from Illinois to San Diego can take about 4h 11m. Spirit Airlines provides one of the quickest options available for as low as $77. All flights are typically nonstop.

What are the cheapest airlines flying from Illinois to San Diego round-trip?

Frontier, at $53, was found to be the cheapest airline from Illinois to San Diego.Alternate airlines to your destination round-trip include Spirit Airlines and United Airlines.

What are the cheapest airlines to fly from Illinois to San Diego one-way?

One-way options have recently been found by users for as low as $25 on Frontier. Other airlines that offer cheap prices include Major Airline from $35 and Spirit Airlines from $36 one-way.