Cheap Flights from Baltimore to Chicago Starting at $37

More than 4 airlines operate flights from Baltimore to Chicago, including Frontier Airlines, American Airlines, Southwest Airlines, and Spirit Airlines. This is a popular route, so passengers can choose tickets based on budget and preferences. Ticket prices start from $37, and our service lets you instantly compare all options. The variety of offers simplifies planning: you can choose budget fares or more comfortable options with baggage included or extra services. We help you find the best deals so your trip is cost-efficient.

Baltimore/Washington Thurgood Marshall Airport (BWI) is a major U.S. airport serving the Baltimore–Washington region, often positioned as a cost-competitive alternative to nearby Washington D.C. airports. It typically hosts a mix of legacy and low-cost carriers, so fares can feel more budget-friendly compared with some regional hubs. BWI sits about 9–10 miles (roughly 20–30 minutes) from downtown Baltimore and roughly 30–45 minutes to central D.C., depending on traffic. Ground options include the MARC commuter train and Amtrak (longer walk/transfer), multiple shuttle services and regular taxis/rideshares — fares and times vary with demand. Pros: generally easier parking and fewer crowds; cons: transfers to central D.C. can take longer than from closer airports.

O'Hare International Airport (ORD) is Chicago's primary international hub and a major transfer point for both domestic and global carriers, typically hosting full-service airlines alongside several international flag carriers. It can be perceived as mid-to-high range for fares due to extensive long-haul and business traffic. Located about 17 miles northwest of downtown, travel to the Loop usually takes 30–60 minutes by Blue Line train (fare around $3–6) or 30–60 minutes by taxi/rideshare (fares typically vary widely depending on traffic). Pros: comprehensive amenities, many nonstop options, strong public-transit links. Cons: large layout can mean long walks and occasional delays during peak weather or operations. Midway International Airport (MDW) functions as Chicago's secondary, more budget- and leisure-oriented airport, commonly serving low-cost and domestic carriers with frequent short-haul flights. It is roughly 10 miles southwest of downtown, with the Orange Line train taking about 25–35 minutes to the Loop (fare about $3–6) and taxis or rideshares usually taking 20–45 minutes depending on traffic. Pros: compact terminals and often quicker security lines; generally easier connections for domestic trips. Cons: fewer international routes and limited premium-carrier options compared with O'Hare, which can affect choice and scheduling flexibility.

The cost of a one-way flight from Baltimore to Chicago ranges from $55 (October 2025) to $154 (December 2025). On average, the ticket price is about $99–$107.