Cheap flights from Denver (DEN) to Illinois (IL)

Flight FAQs

From Denver to Illinois

Are flight prices decreasing from Denver to Illinois 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 Denver and Illinois 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 Denver to Illinois for under $100 on Cheapflights?

Yes, there are multiple flights from Denver to Illinois for under $100. The cheapest flight booked recently is on Multiple Airlines for just $31, but on average you can expect to pay $42.

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

Cheapflights has at least 20 direct flights from Denver to Illinois under $100. A good price for a nonstop flight from Denver to Illinois is less than $43.

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

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

What days are nonstop flights available from Denver to Illinois?

Days when nonstop flights are available for this flight are: Sunday, Friday, Saturday.

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

Major Airline, American Airlines and Delta are the most popular airlines when flying from Denver to Illinois.

What are the most popular routes from Denver to Illinois?

While some choose either Denver Intl - Chicago Midway or Denver Intl - Bloomington-Normal, Denver Intl - Chicago O'Hare Intl is the most popular route from Denver to Illinois.

What are the cheapest Flights from Denver to Illinois?

Looking at all options, your cheapest flight can be booked for $55. While the most popular route (Denver Intl - Chicago O'Hare Intl) can be booked for $31 on average our data indicates $141 when flying from Denver to Illinois

What are the most reliable airlines from Denver to Illinois?

Consider Japan Airlines (100%), Austrian Airlines (100%) or Copa Airlines (100%) when booking your flight. These represent the most reliable airlines when flying from Denver to Illinois.

How long is the flight from Denver to Illinois?

Departing from Denver to Illinois will take you 2h 18m. All flights are typically nonstop.

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

Flying on Spirit Airlines is currently your cheapest option to Illinois, with prices starting at $34. Another option worth looking into is Allegiant Air, starting at $49 round trip.

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

To fly one-way, consider booking your trip with Spirit Airlines, which is currently one of the cheapest options available, starting at $16. Major Airline flights start at $23 while deals on Allegiant Air start at $42 one-way.