Cheap flights from Chicago O'Hare Intl Airport to Billings from $161

The month of April is, on average, the cheapest month to fly to Billings from Chicago O'Hare Intl Airport, with most prices found around $269. The month of January is another great option to travel to Billings, with average flight prices from Chicago O'Hare Intl Airport averaging around $275.

Our data shows that Saturday is the least expensive day to fly to Billings. Tickets to fly out on this day can be as low as $371. Flights from Chicago O'Hare Intl Airport to Billings on a Monday will generally be more expensive and average around $734. Keep in mind that these prices on both days could fluctuate depending on the season and the demand.

According to our data, the cheapest time of day to fly to Billings is in the evening. momondo users have found flights departing from Chicago O'Hare Intl Airport to Billings in the evening for as low as $404. Keep in mind that these prices may fluctuate based on what airline you choose and the time of year you plan to travel. In the morning is when there is more demand to fly to Billings, so prices are often more expensive at around $461 per ticket.

Fly from Chicago O'Hare Intl to Billings Logan Intl for the best Chicago O'Hare Intl - Billings Logan Intl flight prices

There are 2 cabin classes available to choose from on Chicago O'Hare Intl Airport to Billings flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

You could potentially save up to 46% on your flight if you consider stops on a Chicago O'Hare Intl Airport to Billings flight.

United Airlines and Delta are the most popular carriers operating from Chicago O'Hare Intl to Billings Logan Intl

United Airlines, American Airlines and Delta are the top three most popular airlines that fly to Billings from Chicago O'Hare Intl Airport according to our data. United Airlines is the first choice among our users, with 54% of people opting to fly with this airline when traveling to Billings. Keep in mind that there are 3 different airlines that fly to Billings on a routine basis, so you have a few additional options to choose from.

Historically, on average around 10% of flights between Chicago and Billings have experienced a delay on any given week. The average delay length over the past 12 months has been 129 minutes.

Generally, flights departing in the early afternoon tend to experience fewer delays. Flights in the evening have, in the past, seen delays more frequently in comparison.

Thursday is statistically the day of the week which experiences the fewest number of delays on this flight route. Saturday has historically seen more delays on average compared to the rest of the week.

According to our data, American Airlines have had the least number of delays on this route over the last 12 months; with about 9% of their flights experiencing any sort of delay.

1 flights are operational daily from Chicago O'Hare Intl Airport to Billings as of September 2026. The most popular departure time for this route is 9:00AM, with 100% of flights per day taking off at noon.

As of September 2026, there are 7 flights per week flying from Chicago O'Hare Intl Airport to Billings. The most common day of the week flights depart is Mon, with 14% of flights taking off on this day.