Cheap Flights from Chicago (ORD) to Boulder (WBU)

Popular airlines from Chicago O'Hare Intl. Airport (ORD) to Boulder, CO (WBU-Boulder Municipal)

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Frequently asked questions

How much does a flight from O'Hare Intl. Airport (ORD) to Boulder, CO (WBU-Boulder Municipal) cost?
Secure a cheap one-way flight or cheap return flight from O'Hare Intl. Airport (ORD) to Boulder, CO (WBU-Boulder Municipal) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to see our cheapest flight offers on this route.
What is the cheapest month to fly from O'Hare Intl. Airport (ORD) to Boulder, CO (WBU-Boulder Municipal)?
The cheapest month to fly from ORD to WBU is , when there's less demand. Off-peak season is generally when airlines offer lower prices between these airports.
What is the cheapest airline that flies from O'Hare Intl. Airport (ORD) to Boulder, CO (WBU-Boulder Municipal)?
To find the cheapest airline that'll fly you from ORD to WBU, use Expedia's filter tool. Tailor your search based on what matters most to you, such as preferred carriers and ideal departure window. You can then sort your results by "Price (lowest to highest)" to see the most affordable options first.
How many flights per day from O'Hare Intl. Airport (ORD) to Boulder, CO (WBU-Boulder Municipal)?
You'll need to hop on a flight with a layover when traveling from O'Hare Intl. Airport (ORD) to Boulder, CO (WBU-Boulder Municipal). There are no daily direct flights on this route. However, just filter your search to include one or more stops to discover the best option for your trip.
What day of the week has the most flights from ORD to WBU?
You'll typically find Tuesday the quietest day for flights, while Fridays are often the busiest.* However this can vary from season to season and during public holidays or peak travel times.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from O'Hare Intl. Airport (ORD) to Boulder, CO (WBU-Boulder Municipal)?
To arrive at Boulder, CO (WBU-Boulder Municipal) on time, opt for a flight that leaves O'Hare Intl. Airport (ORD) before 3 PM. The likelihood of cancellations is 22% higher, on average, for departures after this time.**Most reliable time of the day and month to travel recommendation is based on January through August 2024 flight status data sourced from OAG's global flight data platform.
What airports do you fly into for Boulder from O'Hare Intl. Airport (ORD)?
Denver Intl. Airport (DEN) is the only airport in Boulder with direct flights from O'Hare Intl. Airport (ORD). Browse the options and find affordable fares on Expedia.
Is it cheaper to buy a plane ticket from O'Hare Intl. Airport (ORD) to Boulder, CO (WBU-Boulder Municipal) last-minute?
Booking your flight from ORD to WBU shortly before your getaway is generally more expensive. But if you're flexible with your itinerary, you could snag a cheap last-minute fare.
Is it cheaper to book an ORD to WBU flight and hotel package?
You'll typically save money by securing an ORD to WBU flight and hotel package compared to booking separately. In fact, you could save hundreds of dollars by bundling with Expedia. And it's easy to manage everything in one place. Once you've chosen your preferred accommodations and flights, you can add extras like car rentals, activities and tours.
Can I cancel or change the date of my flight from O'Hare Intl. Airport (ORD) to Boulder, CO (WBU-Boulder Municipal)?
It's usually possible to reschedule or cancel your ORD to WBU flight. However, for bookings made more than 24 hours ago, additional fees may apply. Check your airline's policies in your itinerary to see what changes are allowed and whether any costs are involved. You'll also find further details on our Customer Service portal.

Travel information

Origin airport
O'Hare Intl.
Destination airport
Boulder Municipal
Distance
911 mi

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Chicago to Boulder Flights

The cheapest times to fly from Chicago to Boulder

On average, Thursday can be the cheapest time to fly, according to data from the Airlines Reporting Corporation (ARC), one of the world's biggest databases for global airline sales. The data reveals that you could save up to 16% by flying on a Thursday—the cheapest day to travel on average—instead of a Sunday—the most expensive. Some of the most affordable flights from Chicago to Boulder are during the month of . You can find some of the cheapest flights from Chicago to Boulder with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Chicago to Boulder

Sunday is one of the best days to book for cheap flights from Chicago to Boulder: Tickets reserved on a Sunday cost between 6% and 13% less than those reserved on a Friday, according to ARC data. The data also suggests booking early can also lead to cheaper airfares. You could save 24% by buying your tickets for domestic flights at least a month in advance and 10% by booking international flights 2 months in advance.

 

How to find cheap round-trip tickets from Chicago to Boulder

Being flexible with your dates and using Expedia's Price Drop Protection and Price Tracking features are some of the best ways of finding a cheap ticket from Chicago to Boulder in 2025. You can also book with separate airlines for your outbound and return journeys, from one-way. Expedia also offers Price Drop Protection, so if the cost of your airfare goes down after booking, you'll receive a credit for the difference*. This is available for a small fee, and is free to One Key Gold and Platinum tier members.

 

Expedia's Price Tracking feature means you can stay on top of airfares without manually checking every day. It sends you automated price alerts for cheap Chicago to Boulder flights and uses historical data to indicate when the best time to book is. Download Expedia's free app to activate this handy tool in a few easy taps.

 

You could also save big by booking one of Expedia's vacation packages. Bundling together your Chicago to Boulder airfare with your accommodations and car rental is often cheaper than booking everything separately. There’s also One Key, Expedia's generous rewards program. Join for free and you could earn One Key cash on most bookings to save on future adventures.

 

*Terms apply.

 

Disclaimer: ARC The statistics are based on average round-trip ticket prices between January and August 2023. The percentages you see are averages.

 

Chicago to Boulder Flights

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