BWI - ORD

$89 Find Cheap Flights from Baltimore to Chicago O'Hare Airport - Compare and Save

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Everything you should know

Cheapest round-trip
$177
Typical prices: $177-$348
Frontier
Sat 10/6Sat 10/13
BWI - ORD • 1 stop
Cheapest non-stop
$177
Typical prices: $180-$351
Frontier
Tue 10/23Mon 10/29
BWI - ORD • Non-stop
Nonstop flights
You can fly direct with United Airlines, American Airlines and Frontier. Average duration is 2h 26m
Direct flights
+1
Direct flights
+1
When to book
in advance
Our data shows that travelers who book at least 9 weeks in advance save around 36% compared to booking last minute.
Insights
Insights
When to travel
Cheapest • 25% price drop
Most popular
Good to know
+1
Good to know
+1
Top layover airports
Cheapest • Avg $198 (round-trip)
Shortest trip • 4h 30m (one-way)
Insights
Insights
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We hope you love your trip to Chicago O'Hare Intl Airport!
Flight Deals
Booking Insights
Expert advice
Flight Deals

Cheap Flights from Baltimore to O'Hare Intl (BWI-ORD)

 
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Baltimore to O'Hare Intl

Tue, Oct 6 - Tue, Oct 13
Frontier Logo
1:55 pm - 3:20 pmBWI  Baltimore/Washington-ORD Chicago O'Hare Intl
26h 25m1 stop Fort Lauderdale
Frontier Logo
6:00 am - 2:20 pmORD  Chicago O'Hare Intl-BWI Baltimore/Washington
31h 20m2 stops Atlanta Hartsfield-Jackson Orlando
$177Frontier
Fri, Oct 9 - Sat, Oct 10
Frontier Logo
9:58 am - 11:21 amBWI  Baltimore/Washington-ORD Chicago O'Hare Intl
2h 23mnonstop
Frontier Logo
6:00 am - 6:30 pmORD  Chicago O'Hare Intl-BWI Baltimore/Washington
11h 30m1 stop Atlanta Hartsfield-Jackson
$177Frontier
Tue, Oct 27 - Wed, Oct 28
Frontier Logo
6:24 am - 12:51 pmBWI  Baltimore/Washington-ORD Chicago O'Hare Intl
7h 27m1 stop Atlanta Hartsfield-Jackson
Frontier Logo
9:51 am - 8:17 amORD  Chicago O'Hare Intl-BWI Baltimore/Washington
21h 26m1 stop Orlando
$177Frontier
Tue, Oct 6 - Wed, Oct 7
United Airlines Logo
11:55 am - 1:15 pmBWI  Baltimore/Washington-ORD Chicago O'Hare Intl
2h 20mnonstop
United Airlines Logo
3:00 pm - 6:13 pmORD  Chicago O'Hare Intl-BWI Baltimore/Washington
2h 13mnonstop
$205United Airlines
Thu, Nov 5 - Mon, Nov 9
Multiple Airlines Logo
9:59 pm - 3:37 pmBWI  Baltimore/Washington-ORD Chicago O'Hare Intl
42h 38m2 stops Tampa Fort Lauderdale
Multiple Airlines Logo
6:00 am - 8:57 amORD  Chicago O'Hare Intl-BWI Baltimore/Washington
1h 57mnonstop
$205Multiple Airlines
Thu, Nov 5 - Mon, Nov 9
Multiple Airlines Logo
9:59 pm - 3:37 pmBWI  Baltimore/Washington-ORD Chicago O'Hare Intl
42h 38m2 stops Tampa Fort Lauderdale
Multiple Airlines Logo
6:00 am - 8:57 amORD  Chicago O'Hare Intl-BWI Baltimore/Washington
1h 57mnonstop
$207Multiple Airlines
Tue, Oct 6 - Tue, Oct 13
United Airlines Logo
9:09 am - 10:29 amBWI  Baltimore/Washington-ORD Chicago O'Hare Intl
2h 20mnonstop
United Airlines Logo
7:30 am - 10:30 amORD  Chicago O'Hare Intl-BWI Baltimore/Washington
2h 00mnonstop
$209United Airlines
Wed, Nov 4 - Sat, Nov 7
American Airlines Logo
11:48 am - 1:18 pmBWI  Baltimore/Washington-ORD Chicago O'Hare Intl
2h 30mnonstop
American Airlines Logo
2:50 pm - 5:58 pmORD  Chicago O'Hare Intl-BWI Baltimore/Washington
2h 08mnonstop
$209American Airlines
Sat, Jan 23 - Wed, Jan 27
American Airlines Logo
7:12 am - 8:50 amBWI  Baltimore/Washington-ORD Chicago O'Hare Intl
2h 38mnonstop
American Airlines Logo
2:44 pm - 5:44 pmORD  Chicago O'Hare Intl-BWI Baltimore/Washington
2h 00mnonstop
$209American Airlines
Sat, Jan 23 - Sat, Jan 30
United Airlines Logo
12:07 pm - 1:30 pmBWI  Baltimore/Washington-ORD Chicago O'Hare Intl
2h 23mnonstop
United Airlines Logo
7:02 am - 10:02 amORD  Chicago O'Hare Intl-BWI Baltimore/Washington
2h 00mnonstop
$209United Airlines
Booking Insights

Price, demand and travel trends for Baltimore to Chicago O'Hare Intl Airport flights

Use KAYAK data on prices, travel dates, airlines and seasonal trends to compare options and book flights from Baltimore to Chicago O'Hare Intl Airport with more confidence.

How much is a round-trip flight from Baltimore to Chicago O'Hare Intl Airport?

Round-trip flights from Baltimore to Chicago O'Hare Intl Airport start at $177. Prices are below average for this route right now, with typical round-trip fares ranging from $177 to $348. The lowest price found in the past 5 days was $177 on Frontier.

What's the cheapest day of the week to fly from Baltimore to Chicago O'Hare Intl Airport?

Friday is the cheapest day of the week to fly from Baltimore to Chicago O'Hare Intl Airport, it is 7% cheaper than the average day. Monday is the most expensive day with flight prices 11% higher than average. Based on deals found by KAYAK users in the last 12 months.

What is the cheapest month to fly from Baltimore to Chicago O'Hare Intl Airport?

•January is the cheapest month to fly from Baltimore to Chicago O'Hare Intl Airport at $193 round-trip.
•July ($369) and June ($356) are the most expensive months.
•The price difference between flying in the cheapest and most expensive months is 91% on average.
This is based on KAYAK aggregated and averaged internal data over the past 12 months.

When are prices from Baltimore to Chicago O'Hare Intl Airport the cheapest?

Flights from Baltimore to Chicago O'Hare Intl Airport are cheapest 9 weeks before departure. Booking in this window typically costs about 36% less than the average last-minute fare (within 2 weeks of the flight), based on KAYAK data.

Expert advice

Expert advice for your flight from Baltimore to O'Hare Intl

 
KAYAK teamed up with top travel experts to share the best tips for your journey.
Our travel experts
Blane Bachelor

Blane Bachelor

Expert on Southwest

Blane Bachelor is a journalist and editor specializing in travel and aviation who writes regularly for top global outlets. Born and raised in Florida, Blane has worked and lived in four countries, including the Netherlands, where she’s currently based with her family. Her favorite way to get to know a new destination is by running or riding a bike around town – or hearing a spooky ghost story about local history. She will always choose the window seat.

Stefanie Waldek

Stefanie Waldek

Expert on United Airlines and ORD

Stefanie Waldek is a freelance space, travel, and design writer based in Saratoga Springs, NY. Her words have appeared in Space.com, Travel + Leisure, Condé Nast Traveler, Architectural Digest, and House Beautiful, among other publications. An expert in aviation and expedition cruising, Stefanie is frequently up in the air or on the sea, likely en route to Antarctica or the Arctic.

Harriet Baskas

Harriet Baskas

Expert on American Airlines and BWI

Harriet is an award-winning journalist who is happiest in an airport or an unusual museum. Her stories about airports, air travel, and the business of travel have appeared on NBC News, CNBC, USA TODAY, The Points Guy and other outlets. She is the creator of the StuckatTheAirport.com blog and the author of nine books. When not out on the road or exploring the latest airport amenities, she’s home in Seattle getting ready for the next adventure.

Key details for Baltimore to Chicago O'Hare Intl Airport flights

Low season

June

Cheapest flight

$89
Best time to beat the crowds but there is an average 38% increase in price.
Most popular time to fly and prices are also 5% lower on average.
Flight from Baltimore to Chicago O'Hare Intl Airport

When to book flights from Baltimore to O'Hare Intl

Are your dates flexible? Find out the best times to travel from Baltimore to O'Hare Intl based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price

Your Baltimore to Chicago O'Hare Intl Airport flight questions, answered

Find helpful route details based on KAYAK data, including flight times, airports, airlines and booking questions.

  • What are the earliest and latest flights from Baltimore to Chicago O'Hare Intl Airport?

    These are the earliest and latest flight times available from Baltimore to Chicago O'Hare Intl Airport:

    • Earliest: departs at 6:00 am and lands at 8:26 am
    • Latest: departs at 7:10 pm and lands at 9:36 pm.

    The flight takes about 2h 26m.

  • What cabin classes can I book on flights from Baltimore to Chicago O'Hare Intl Airport?

    Four cabin classes are available on flights from Baltimore to Chicago O'Hare Intl Airport:

    • Economy Class
    • Premium Economy Class
    • Business Class
    • First Class

    Prices vary by airline.

  • How long is a flight from Baltimore to Chicago O'Hare Intl Airport?

    A nonstop flight from Baltimore to Chicago O'Hare Intl Airport takes 2h 26m, covering 620 miles.

  • Do I need a passport to fly from Baltimore to Chicago O'Hare Intl Airport?

    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.

  • How much should I expect to pay for a Baltimore to Chicago O'Hare Intl Airport flight?

    Round-trip flights from Baltimore to Chicago O'Hare Intl Airport range from $177 to $348, with an average of $259 over the past 12 months. Anything below $177 counts as a good deal.

  • How expensive are last-minute Baltimore to Chicago O'Hare Intl Airport flights?

    Last-minute fares on this route - booked within 2 weeks of departure - run 25% above the route average of $259. Book 9 weeks before departure for the lowest fares.

  • How much can I save by taking a layover when flying from Baltimore to Chicago O'Hare Intl Airport?

    On this route, layover flights are cheaper than nonstop options on average. Layover fares average $198 round-trip via Fort Lauderdale (FLL), compared to $265 for nonstop.

  • What is the standard checked-bag allowance on flights from Baltimore to Chicago O'Hare Intl Airport?

    There is no standard. Checked-bag policies vary by airline on this route. Most carriers charge $40–$100 for the first checked bag in economy. Premium fares and elite-status bookings typically include a free checked bag.

  • Which aircraft model is used most often on flights from Baltimore to Chicago O'Hare Intl Airport?

    The Boeing 737 MAX 8 family is used most often on this route, operated mainly by Southwest and United Airlines. Other aircraft seen on the route include Boeing 737-800 variants.

  • How are flight departures from Baltimore to Chicago O'Hare Intl Airport spread across the day?

    Morning is the busiest departure period on Baltimore to Chicago O'Hare Intl Airport flights, with 63% of flights leaving in that window. Evening departures account for 25%, afternoon flights for 12%, and night flights for 0%.

  • Have flight prices from Baltimore to Chicago O'Hare Intl Airport changed much recently?

    Yes. Based on fares seen in the past 5 days, round-trip prices on this route showed a wide range, from about $177 to $801. That means the highest observed fare was about 5x higher than the lowest one.

  • Which airlines offer Wi-Fi on Baltimore to Chicago O'Hare Intl Airport flights?

    American Airlines is the only airline on the Baltimore to Chicago O'Hare Intl Airport route offering in-flight Wi-Fi. Pricing depends on fare class.

  • How are flight prices from Baltimore to Chicago O'Hare Intl Airport looking right now?

    One-way fares from Baltimore to Chicago O'Hare Intl Airport are currently lower than usual. Average one-way flight prices are about $102, which is 37% below the typical average for this route.

  • What car rental options are available at Chicago O'Hare Intl Airport (ORD)?

    Chicago O'Hare Intl Airport (ORD) hosts 5 major car rental companies, with daily rates starting from around $17 for economy cars. Top options include:
    • Routes Car & Truck Rentals
    • Europcar
    • Hertz
    • Dollar
    • Ace

  • Which airports can I use when flying from Baltimore to Chicago O'Hare Intl Airport?

    Flights from Baltimore to Chicago O'Hare Intl Airport usually depart from Baltimore/Washington (BWI) and arrive at Chicago O'Hare Intl (ORD).

  • Which airports do connecting flights from Baltimore to Chicago O'Hare Intl Airport pass through?

    One-stop flights from Baltimore to Chicago O'Hare Intl Airport most commonly connect through:

    • Atlanta Hartsfield-Jackson (ATL) - 63% of one-stop connections
    • Orlando (MCO) - 18% of one-stop connections
    • Detroit Metropolitan Wayne County (DTW) - 12% of one-stop connections
    • Fort Lauderdale (FLL) - 8% of one-stop connections

    Atlanta Hartsfield-Jackson (ATL) handles the largest share of one-stop connections on this route.

  • Can I save money by using flexible dates for flights from Baltimore to Chicago O'Hare Intl Airport?

    Yes. Being flexible with your travel dates can save you up to 16% on the Baltimore to Chicago O'Hare Intl Airport route. Friday is the cheapest departure day at $242 round-trip on average, while Monday is the most expensive at $288, a difference of $46. KAYAK's flexible dates feature shows options up to 3 days before and after your selected dates, making it easier to compare nearby fares.

  • What airlines are available from Baltimore to Chicago O'Hare Intl Airport?

    3 airlines operate flights between Baltimore and Chicago O'Hare Intl Airport. The airlines offering nonstop flights on this route include:

    • United Airlines
    • American Airlines
    • Frontier

  • How much time can I save by choosing a different layover airport from Baltimore to Chicago O'Hare Intl Airport?

    Flying via Detroit Metropolitan Wayne County (DTW) gives the shortest average 1-stop total travel time at 4h 30m, compared with 7h 49m via Atlanta Hartsfield-Jackson (ATL) and 8h 12m via Orlando (MCO).

  • What is the time difference between Baltimore and Chicago O'Hare Intl Airport?

    Chicago O'Hare Intl Airport is 1 hour behind Baltimore (Central Time vs Eastern Time). Plan for the time shift when scheduling connections or first-day activities.

  • What popular places can I visit in Chicago O'Hare Intl Airport?

    Some of the most popular sights in Chicago O'Hare Intl Airport are Magnificent Mile, Grant Park and River North. These are among the most viewed places in Chicago O'Hare Intl Airport on KAYAK.

  • Which airlines offer extra legroom and free seat selection on Baltimore to Chicago O'Hare Intl Airport flights?

    Among airlines operating Baltimore to Chicago O'Hare Intl Airport flights:

    • United Airlines: offers extra legroom; offers free seat selection
    • Frontier: offers free seat selection
    • American Airlines: offers extra legroom; offers free seat selection

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

  • Which airlines include bags at no extra cost on Baltimore to Chicago O'Hare Intl Airport flights?

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

    • United Airlines: a cabin bag and a checked bag in Economy Class
    • Frontier: a cabin bag and a checked bag in Economy Class
    • American Airlines: a cabin bag and a checked bag in Economy Class

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

  • How do I get from O’Hare International Airport to downtown Chicago?

    The Chicago Transit Authority makes it convenient to get from O’Hare International Airport to Downtown Chicago as the Blue Line ‘L’ train will ensure get to the center of the town in approximately 45min. The train is easily accessible from Terminals 1, 2, or 3. There are also van and bus shuttle services that leave the airport every 10-15min which will facilitate easy transport to the city.

  • Can I travel out of Baltimore Washington International Airport with a pet?

    The pet policy at Baltimore Washington International Airport requires all comfort animals and pets to remain in a carrier while inside the terminals. When traveling with your furry friend, it is recommended that you use the elevators as opposed to escalators and moving walkways. The airport provides four pet relief areas at Concourse C, D, E, and in front of the hourly garage. When using the pet relief areas, pet owners and handlers should always have their pets on a leash.

  • What parking options are available at Baltimore Washington International Airport?

    Baltimore Washington International Airport provides a variety of parking options to passengers, which include hourly parking, daily parking, express parking, and long-term parking. Additionally, the airport provides electric vehicle charging at the cell phone parking lot and at the daily garage, which is charged separately from the parking fee.

  • What accessibility services does Baltimore Washington International Airport provide?

    Shuttle buses at Baltimore Washington International Airport are wheelchair accessible as they have lift equipment to make boarding and alighting easier for those with restricted mobility. The airport also provides parking for the disabled within each of the airport’s parking facilities. In addition, Baltimore Washington International Airport uses Aira to help the visually impaired move through the airport, while there are public telecommunication devices for the deaf available for the hearing impaired.

Your guide to booking Baltimore to Chicago O'Hare Intl Airport flights

Get tips on when to book, when to fly and what to know before your trip.
  • If your dates can be flexible, aim for a Friday departure instead of Monday. On this route, Friday flights average $242 - about $46 less than Monday (16% savings) based on the last 12 months.
  • For the best chance at a low fare, aim to book around 9 weeks before you fly. On this route, that window historically saves about 36% versus last-minute pricing (KAYAK booking data, last 12 months).
  • If you can choose when to travel, plan your Baltimore to Chicago O'Hare Intl Airport trip for January. Fares historically average $193 round-trip in that month - typically $176 less than the most expensive month, which is July (based on the last 12 months).
  • If you have the time, taking a 1-stop flight through Fort Lauderdale Airport (FLL) can be cheaper than flying direct. The cheapest layover option averages $198 round-trip on this route - about $67 less than direct flights (based on the last 12 months).
  • When taking a flight from Baltimore Washington International Airport (BWI) to O’Hare International Airport (ORD), it is recommended that you arrive at the airport at least 2h before your scheduled time of departure.
  • If you happen to lose any of your items while traveling out of Baltimore Washington International Airport, head over to the Lost & Found Office located at the Concourse C exit on the terminal’s upper level, which is open daily from 9 am to 5 pm.
  • Make use of the several lounges available at O’Hare International Airport to catch up on work or relax on arrival in Chicago. The lounges can be found inside security at Terminals 1, 2, 3, and 5, and there is a single lounge available outside security at Terminal 2.
  • Baltimore Washington International Airport provides nursing mothers with safe and private spaces where they can breastfeed or pump on the go. The nursing stations are located on Concourse A, B, C, D, and in the play area. There are also private nursing rooms available near Gate E6 and A12.
  • Baltimore Washington Airport can get quite crowded; therefore, the airport provides a meditation room close to the D/E Security Checkpoint where passengers can find some calm and quiet in the midst of the airport’s activities.

Prefer to fly direct from Baltimore to Chicago O'Hare Airport?

 
Find which airlines fly direct from Baltimore/Washington Airport to Chicago O'Hare Intl Airport, which days they fly and book direct flights.

Direct departures

Baltimore/Washington to Chicago O'Hare Intl

Monday

American Airlines,Frontier,United Airlines

American Airlines,Frontier, +1 more

Tuesday

American Airlines,United Airlines,Frontier

American Airlines,United Airlines, +1 more

Wednesday

American Airlines,United Airlines,Frontier

American Airlines,United Airlines, +1 more

Thursday

American Airlines,Frontier,United Airlines

American Airlines,Frontier, +1 more

Friday

American Airlines,Frontier,United Airlines

American Airlines,Frontier, +1 more

Saturday

American Airlines,Frontier,United Airlines

American Airlines,Frontier, +1 more

Sunday

American Airlines,Frontier,United Airlines

American Airlines,Frontier, +1 more

See more direct flights

Direct returns

Chicago O'Hare Intl to Baltimore/Washington

Monday

American Airlines,Frontier,United Airlines

American Airlines,Frontier, +1 more

Tuesday

American Airlines,United Airlines,Frontier

American Airlines,United Airlines, +1 more

Wednesday

American Airlines,United Airlines,Frontier

American Airlines,United Airlines, +1 more

Thursday

American Airlines,Frontier,United Airlines

American Airlines,Frontier, +1 more

Friday

American Airlines,Frontier,United Airlines

American Airlines,Frontier, +1 more

Saturday

American Airlines,Frontier,United Airlines

American Airlines,Frontier, +1 more

Sunday

American Airlines,Frontier,United Airlines

American Airlines,Frontier, +1 more

See more direct flights

More options for your flight from Baltimore to O'Hare Intl

Complete your trip to Chicago with a hotel stay or car rental