Cheap flights from Chicago O'Hare Intl Airport to Washington, D.C. from $113

If you’re not able to fly to Baltimore in February, then September is your next best option. Flight prices from Chicago O'Hare Intl Airport to Baltimore during September average around $166.

The cheapest day to depart from Chicago O'Hare Intl Airport to Baltimore is on a Friday. Travelers who choose to depart for Baltimore on a Friday will often find tickets for as low as $206. If your travel schedule is flexible, try to avoid departing on a Tuesday because tickets tend to average around $283. These prices are subject to change though, so be sure to set up a Price Alert for flights to Baltimore.

Flying to Baltimore from Chicago O'Hare Intl Airport at noon is the least expensive time of day to depart. momondo users have found prices as low as $226 when looking at flights departing at noon. Flights in the evening are often more expensive with an average ticket price of $298.

Fly from Chicago O'Hare Intl to Baltimore/Washington for the best Chicago O'Hare Intl - Baltimore/Washington flight prices

You are more likely to see cheaper flights to Baltimore from Chicago O'Hare Intl Airport when booking weeks ahead of your departure date. In general, you can expect to find flights to Baltimore for around $246 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Baltimore from Chicago O'Hare Intl Airport for as low as $159 on momondo.

There are 4 cabin classes available to choose from on Chicago O'Hare Intl Airport to Baltimore 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 32% on your flight if you consider stops on a Chicago O'Hare Intl Airport to Baltimore flight.

As of June 2026, prices for Chicago O'Hare Intl Airport to Baltimore flights are approximately 28% cheaper when compared to flights at the same time last year.

United Airlines and Delta are the most popular carriers operating from Chicago O'Hare Intl to Baltimore/Washington

United Airlines, American Airlines and Frontier are the top three most popular airlines that fly to Baltimore from Chicago O'Hare Intl Airport according to our data. United Airlines is the first choice among our users, with 59% of people opting to fly with this airline when traveling to Baltimore. Keep in mind that there are 5 different airlines that fly to Baltimore on a routine basis, so you have a few additional options to choose from.

Historically, on average around 21% of flights between Chicago and Baltimore have experienced a delay on any given week. The average delay length over the past 12 months has been 134 minutes.

Generally, flights departing in the morning tend to experience fewer delays. Flights at night have, in the past, seen delays more frequently in comparison.

Saturday is statistically the day of the week which experiences the fewest number of delays on this flight route. Friday 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 20% of their flights experiencing any sort of delay.

13 flights are operational daily from Chicago O'Hare Intl Airport to Baltimore as of June 2026. The most popular departure time for this route is 9:00PM, with 48% of flights per day taking off in the evening.

As of June 2026, there are 97 flights per week flying from Chicago O'Hare Intl Airport to Baltimore. The most common day of the week flights depart is Tue, with 25% of flights taking off on this day.