$81 Cheap United flights Chicago (ORD) to Baltimore (BWI)

View $81 flight on Wed, Oct 15, 2025Opens in a new window

$81 Cheap United flights Chicago (ORD) to Baltimore (BWI)

Prices were available within the past 7 days and start at $81 for one-way flights and $147 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

United
Mon, Sep 15 - Thu, Sep 25
ORD
Chicago
BWI
Baltimore
$147 Roundtrip, found 4 hours ago
$147
Roundtrip
found 4 hours ago
Select United flight, departing Mon, Sep 15 from Chicago to Baltimore, returning Thu, Sep 25, priced at $147 found 4 hours ago
United
Mon, Oct 20 - Thu, Oct 30
ORD
Chicago
BWI
Baltimore
$149 Roundtrip, found 4 hours ago
$149
Roundtrip
found 4 hours ago
Select United flight, departing Mon, Oct 20 from Chicago to Baltimore, returning Thu, Oct 30, priced at $149 found 4 hours ago
United
Tue, Sep 2 - Wed, Sep 3
ORD
Chicago
BWI
Baltimore
$161 Roundtrip, found 2 hours ago
$161
Roundtrip
found 2 hours ago
Select United flight, departing Tue, Sep 2 from Chicago to Baltimore, returning Wed, Sep 3, priced at $161 found 2 hours ago
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Flights from Chicago (ORD) to Baltimore (BWI)
Origin airport
O'Hare Intl.
Destination airport
Baltimore Washington Intl. Thurgood Marshall
Airlines serving
American Airlines, Delta, Frontier Airlines, Southwest Airlines, Spirit Airlines, Sun Country Airlines, United
Popular airline
Spirit Airlines
Distance
619 mi

Frequently asked questions

How much is a United Airlines flight from O'Hare Intl. Airport (ORD) to Baltimore Washington Intl. Thurgood Marshall Airport (BWI)?
You'll discover cheap round-trip United Airlines flights from $147 from ORD to BWI by organizing your results from "Price (lowest to highest)" on Expedia. Or search for bargains from $81 for a one-way trip.**These prices were available on Expedia within the past 7 days, for flights departing within the next year. Prices and availability are subject to change. Additional terms apply.
What is the cheapest month to fly from ORD to BWI with United Airlines?
Search for one-way or return flights to Baltimore in January or February. You could find cheaper fares with United Airlines during these off-peak times.
What is the cheapest time to book flights from O'Hare Intl. Airport (ORD) to Baltimore Washington Intl. Thurgood Marshall Airport (BWI) with United Airlines?
To find cheap United Airlines fares from O'Hare Intl. Airport (ORD) to Baltimore Washington Intl. Thurgood Marshall Airport (BWI), start searching one to three months before your planned departure. Securing domestic flights 34 to 86 days in advance could save you 25% compared to booking just 6 to 12 days ahead. The day you book can also impact what you pay. Sunday tends to be the most affordable, while Monday is often the most expensive for domestic flights. You can save 6% on average by booking your trip on a Sunday.**Ideal booking window recommendation is based on average round-trip ticket prices for January through November for 2024. Best day of the week to book recommendation is based on average round-trip ticket prices for January through October 2024. All data sourced from ARC's global airline sales database.
Does United Airlines fly nonstop from O'Hare Intl. Airport (ORD) to Baltimore Washington Intl. Thurgood Marshall Airport (BWI)?
Easily travel from O'Hare Intl. Airport (ORD) to Baltimore Washington Intl. Thurgood Marshall Airport (BWI) on any of United Airlines's 14 weekly direct flights. Apply Expedia's "Nonstop" and "Airline" filters to find the United Airlines flight that'll take you to BWI at your preferred time.
How long does it take to fly from ORD to BWI with United Airlines?
Take off from O'Hare Intl. Airport (ORD) for Baltimore Washington Intl. Thurgood Marshall Airport (BWI) on a direct United Airlines flight, and you'll be in the sky for about 2h.
Which day of the week has the most United Airlines flights from O'Hare Intl. Airport (ORD) to Baltimore Washington Intl. Thurgood Marshall Airport (BWI)?
Friday has the most United Airlines flights from O'Hare Intl. Airport (ORD) to Baltimore Washington Intl. Thurgood Marshall Airport (BWI). With 2 daily departures, this is a great day to book something that will fit your plans.
What is the earliest United Airlines flight from ORD to BWI?
The first flight from ORD to BWI with United Airlines leaves at 10:50AM UTC-6. You'll land at 1:51PM UTC-5. The final United Airlines flight of the day takes off at 5:50PM UTC-6 and arrives at 8:48PM UTC-5. With around 20% fewer cancellations for morning and mid-morning departures, beginning your travel day early is generally the smartest option.**Most reliable time of the day recommendation is based on January through August 2024 flight status data sourced from OAG's global flight data platform.
What airports does United Airlines fly into in Baltimore?
Baltimore Washington Intl. Thurgood Marshall Airport (BWI) is the main Baltimore gateway for United Airlines flights from O'Hare Intl. Airport (ORD). Ronald Reagan Washington National Airport (DCA) and Washington Dulles Intl. Airport (IAD) are alternative possibilities. When organizing your break through Expedia, select the "All Airports" option for your destination to see everything that's available.
Why fly with United Airlines from ORD to BWI?
Fly from ORD to BWI with United Airlines and you'll enjoy a host of benefits starting with a rewarding loyalty program. When booking through Expedia as a United Mileage Plus and One Key™ member, you can also earn OneKeyCash™* to spend on select future travel purchases.*OneKeyCash™ disclaimer - OneKeyCash™ is not redeemable for cash and can only be used on Expedia, Hotels.com and Vrbo.
What type of plane does United Airlines fly from O'Hare Intl. Airport (ORD) to Baltimore Washington Intl. Thurgood Marshall Airport (BWI)?
United Airlines usually flies Airbus A319 planes for flights from O'Hare Intl. Airport (ORD) to Baltimore Washington Intl. Thurgood Marshall Airport (BWI). This carrier also operates the Boeing 737-800 on this route. Remember that aircraft type can change depending on operational reasons, so the plane you catch might be different on the day.
Can I change or cancel my United Airlines flight from O'Hare Intl. Airport (ORD) to Baltimore Washington Intl. Thurgood Marshall Airport (BWI)?
Depending on your fare type, a fee generally applies if you change or cancel your flight more than 24 hours after it's been confirmed. To find flexible fares, select our "Changes included" or "No cancel fee" filter while searching for flights. To learn more about modifying or canceling your reservation, head to "Trips," select your flight and click on "Manage Booking."

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*Available to One Key members.