$149 Find Cheap Flights from Chicago to Billings - Compare and Save

Only Economy Class is available on flights from Chicago to Billings.

A nonstop flight from Chicago to Billings takes 00m, covering 1,073 miles.

No, a passport is not required for this domestic route, but you will need a real ID-compliant driver's license, a state ID or another TSA-accepted form of identification.

Round-trip flights from Chicago to Billings range from $341 to $555, with an average of $441 over the past 12 months. Anything below $341 counts as a good deal.

Last-minute fares on this route (booked within two weeks of departure) run 49% above the $441 route average. Book 23 weeks before departure for the lowest fares.

On this route, layover flights are cheaper than nonstop options on average. Layover fares average $348 round-trip via Minneapolis St Paul (MSP), compared to $487 for nonstop.

There is no standard. Checked-bag policies vary by airline on this route. Most carriers charge $50–$100 for the first checked bag in economy. Premium fares and elite-status bookings typically include a free checked bag.

Yes. Based on fares seen in the past 5 days, round-trip prices on this route showed a wide range, from about $323 to $1,672. That means the highest observed fare was about 5x higher than the lowest one.

American Airlines is the only airline on the Chicago to Billings route offering in-flight Wi-Fi. Pricing depends on fare class.

One-way fares from Chicago to Billings are currently lower than usual. Average one-way flight prices are about $239, which is 28% below the typical average for this route.

Billings Logan Intl Airport (BIL) hosts 5 major car rental companies, with daily rates averaging $92 for economy cars. Top options include:

• Rent-A-Wreck
• Budget
• Hertz
• Alamo
• Enterprise Rent-A-Car

Flights from Chicago to Billings may depart from several airports in Chicago area, including Chicago Midway (MDW), Chicago O'Hare Intl (ORD) and Chicago Greater Rockford (RFD). Flights usually arrive at Billings Logan Intl (BIL).

Afternoon flights have the fewest delays on this route, while evening departures tend to have the most.

A flight is considered delayed when it departs 15 minutes or more after its scheduled time. This is the standard used by the US Department of Transportation and most airline industry reporting. On the Chicago to Billings route, 9% of flights were delayed in the past 3 months, with delays averaging 2h 17m.

One-stop flights from Chicago to Billings most commonly connect through:

• Denver Intl (DEN) - 77% of one-stop connections
• Minneapolis St Paul (MSP) - 18% of one-stop connections
• Dallas/Fort Worth (DFW) - 2% of one-stop connections
• Salt Lake City (SLC) - 2% of one-stop connections

Yes. Flexible dates can save you up to 44% on flights from Chicago to Billings. Saturday is the cheapest departure day at $325 round-trip on average, while Monday is the most expensive at $580, a difference of $255.

Cheaper weekend fares like these are typical of routes dominated by weekday business travel.

Flying via Minneapolis St Paul (MSP) gives the shortest average 1-stop total travel time at 5h 20m, compared with 5h 52m via Denver Intl (DEN) and 6h 09m via Salt Lake City (SLC).

Billings is 1 hour behind Chicago (Mountain Time vs Central Time). Plan for the time shift when scheduling connections or first-day activities.

Among airlines operating Chicago to Billings flights:

• American Airlines: offers free seat selection

Extra legroom and free seat selection availability depends on fare class and route.

Here are some options for this route, based on selected ticket types and cabin classes:

• American Airlines: a cabin bag in Economy Class class

Bag allowance can vary by ticket type, cabin class, route and airline, so always check the fare details before booking.