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O'Hare Intl

$68+ Cheap flights from Baltimore (BWI) to O'Hare Intl (ORD)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 1/17. Fares are subject to change and may not be available on all flights or dates of travel.
BWI — ORD
Jan 22 — Jan 291
Thu 1/22
Thu 1/29
1 adult, Economy
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Find cheap flights from Baltimore to O'Hare Intl with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

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3. Compare prices and book

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Cheapflights Tip: The best prices from Baltimore/Washington to Chicago O'Hare Intl are usually found in January or September, booked 79 days in advance, depart on a Friday or Thursday and return on a Friday

Cheap flight deals from Baltimore to O'Hare Intl

Cheapest flights from Baltimore to O'Hare Intl
Explore the most affordable flight options available from Baltimore to O'Hare Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on December 23, 2025.

This Frontier deal was found by Cheapflights users on 12/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/3111:55 amBWI - ORD
1 stop7h 38mFrontier
Thu 1/84:20 pmORD - BWI
Nonstop2h 02mFrontier
Deal found 12/21$172
This Delta deal was found by Cheapflights users on 12/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/316:00 amBWI - ORD
1 stop4h 01mDelta
Thu 1/16:35 amORD - BWI
1 stop6h 16mDelta
Deal found 12/22$177
This Frontier deal was found by Cheapflights users on 12/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/309:37 amBWI - ORD
Nonstop2h 18mFrontier
Thu 1/84:20 pmORD - BWI
Nonstop2h 02mFrontier
Deal found 12/21$180
This Frontier deal was found by Cheapflights users on 12/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/2910:00 pmBWI - ORD
1 stop12h 02mFrontier
Thu 1/84:20 pmORD - BWI
Nonstop2h 02mFrontier
Deal found 12/21$191
This Kiwi.com deal was found by Cheapflights users on 12/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/3110:40 amBWI - ORD
1 stop9h 22mMultiple Airlines
Mon 1/512:39 pmORD - BWI
1 stop11h 01mMultiple Airlines
Deal found 12/21$211
This Kiwi.com deal was found by Cheapflights users on 12/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/3111:55 amBWI - ORD
1 stop7h 38mFrontier
Wed 1/74:49 pmORD - BWI
1 stop6h 40mFrontier
Deal found 12/21$212
This Delta deal was found by Cheapflights users on 12/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/316:00 amBWI - ORD
1 stop4h 01mDelta
Tue 1/611:05 amORD - BWI
1 stop4h 33mDelta
Deal found 12/21$213
This American Airlines deal was found by Cheapflights users on 12/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/316:00 amBWI - ORD
Nonstop2h 22mAmerican Airlines
Thu 1/15:00 amORD - BWI
1 stop7h 07mAmerican Airlines
Deal found 12/20$219
This Frontier deal was found by Cheapflights users on 12/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/309:37 amBWI - ORD
Nonstop2h 18mFrontier
Wed 1/74:49 pmORD - BWI
1 stop6h 40mFrontier
Deal found 12/21$221
This Kiwi.com deal was found by Cheapflights users on 12/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/309:37 amBWI - ORD
Nonstop2h 18mMultiple Airlines
Tue 1/63:26 pmORD - BWI
1 stop7h 20mMultiple Airlines
Deal found 12/21$228

Find flight deals from Baltimore to O'Hare Intl

Discover tips and strategies to find the most affordable flight options for your journey from Baltimore (BWI) to O'Hare Intl (ORD). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated December 23, 2025.

Most accurate provider

CheapOair
3 stars

Most trusted provider

CheapOair
3 stars

Round-trip from

$82
(Kiwi.com)

One-way from

$68
(Kiwi.com)

Popular in

February

Cheapest in

January

Average price

$295
Provider with most accurate pricing for Baltimore/Washington-Chicago O'Hare Intl flight deals.
Search Deals
Provider most trusted by Cheapflights users for Baltimore/Washington-Chicago O'Hare Intl flights.
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From Baltimore/Washington to Chicago O'Hare Intl
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One-way flight from Baltimore/Washington to Chicago O'Hare Intl
Search Deals
Highest demand for flights based on searches. 6% potential increase in price ($19 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease ($6 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in December 2025
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Baltimore to O'Hare Intl that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated December 23, 2025.
Use the filters below to find and compare flights from Baltimore to Chicago O'Hare Intl Airport that are best for you.

Fly from

Baltimore

Fly to

O'Hare Intl

Route

Depart

Return

Price

BaltimoreChicago

BWI - ORD

BWIORD

Baltimore/Washington

Wed 1/7

8:38 pm-9:48 pm

Nonstop2h 10m

Chicago O'Hare Intl

Sun 1/11

4:20 pm-7:22 pm

Nonstop2h 02m

$120

BaltimoreChicago

BWI - ORD

BWIORD

Baltimore/Washington

Wed 1/7

8:38 pm-9:48 pm

Nonstop2h 10m

Chicago O'Hare Intl

Sun 1/11

12:44 pm-11:47 pm

1 stop10h 03m

$134

BaltimoreChicago

BWI - ORD

BWIORD

Baltimore/Washington

Sat 1/17

5:18 pm-6:38 pm

Nonstop2h 20m

Chicago O'Hare Intl

Sun 1/18

11:05 am-2:11 pm

Nonstop2h 06m

$139

BaltimoreChicago

BWI - ORD

BWIORD

Baltimore/Washington

Mon 1/19

1:54 pm-3:21 pm

Nonstop2h 27m

Chicago O'Hare Intl

Tue 1/20

2:18 pm-10:27 am

1 stop19h 09m

$154

BaltimoreChicago

BWI - ORD

BWIORD

Baltimore/Washington

Mon 1/19

5:18 pm-6:38 pm

Nonstop2h 20m

Chicago O'Hare Intl

Tue 1/20

11:05 am-2:11 pm

Nonstop2h 06m

$166

BaltimoreChicago

BWI - ORD

BWIORD

Baltimore/Washington

Thu 1/22

6:00 am-9:41 am

1 stop4h 41m

Chicago O'Hare Intl

Mon 1/26

10:35 am-4:38 pm

1 stop5h 03m

$177

BaltimoreChicago

BWI - ORD

BWIORD

Baltimore/Washington

Thu 1/1

6:00 am-9:01 am

1 stop4h 01m

Chicago O'Hare Intl

Thu 1/1

6:02 pm-11:31 pm

1 stop4h 29m

$177

BaltimoreChicago

BWI - ORD

BWIORD

Baltimore/Washington

Fri 2/13

6:30 am-7:53 am

Nonstop2h 23m

Chicago O'Hare Intl

Sun 2/15

6:15 pm-9:17 pm

Nonstop2h 02m

$177

BaltimoreChicago

BWI - ORD

BWIORD

Baltimore/Washington

Thu 1/29

6:59 pm-11:56 pm

1 stop5h 57m

Chicago O'Hare Intl

Sun 2/1

6:15 am-1:57 pm

1 stop6h 42m

$187

BaltimoreChicago

BWI - ORD

BWIORD

Baltimore/Washington

Fri 3/20

10:57 am-4:47 pm

1 stop6h 50m

Chicago O'Hare Intl

Tue 3/24

7:41 pm-9:14 am

1 stop12h 33m

$189

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/21

Showing 1-10 of 20 results
1
2

Compare providers for flights from Baltimore to O'Hare Intl

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Baltimore to O'Hare Intl in December.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy2 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*1 star
eDreamsPrice Accuracy3 starsTrust Score*3 stars
CheapfaremartPrice Accuracy-Trust Score*1 star
OvagoPrice Accuracy2 starsTrust Score*2 stars
PricelinePrice Accuracy1 starTrust Score*3 stars
Kiwi.comPrice Accuracy3 starsTrust Score*3 stars
CheapOairPrice Accuracy3 starsTrust Score*3 stars
MytripPrice Accuracy3 starsTrust Score*3 stars
Trip.comPrice Accuracy2 starsTrust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Baltimore-Chicago O'Hare Intl Airport flights, users find the pricing of CheapOair to be most consistent on Cheapflights vs. CheapOair Users can find the same prices on Baltimore-Chicago O'Hare Intl Airport flight deals on Cheapflights vs. CheapOair >95% of the time. Price accuracy is based on data collected from Baltimore-Chicago O'Hare Intl Airport flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Baltimore-Chicago O'Hare Intl Airport flights, Cheapflights users trust CheapOair the most. CheapOair has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Baltimore-Chicago O'Hare Intl Airport flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from Baltimore to O'Hare Intl

Have a flexible travel schedule? Discover the best time to fly to O'Hare Intl from Baltimore with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Baltimore to Chicago O'Hare Intl Airport

How far ahead should I book a flight from Baltimore to Chicago O'Hare Intl Airport?

Use this chart to determine the optimal time to book a round-trip flight from Baltimore to O'Hare Intl. Price data was last updated on December 19, 2025.

Booking 79 days in advance of your planned departure date is, on average, the best time to get cheap flights from Baltimore to Chicago O'Hare Intl Airport. The general trend is that the closer you book to the departure date, the more expensive your flight will be.

What is the cheapest month to book a flight from Baltimore to Chicago O'Hare Intl Airport?

Currently, January is the cheapest month in which you can book a flight from Baltimore to Chicago O'Hare Intl Airport (average of $58). Flying from Baltimore to Chicago O'Hare Intl Airport in March is currently the most expensive (average of $169). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from BWI to ORD?

Find hourly flight availability from Baltimore to O'Hare Intl. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated December 23, 2025.

One of the essential ways to save on airfare from Baltimore to Chicago O'Hare Intl Airport is to remain as flexible as possible. Flights that are at noon tend to be the most expensive. A flight in the evening could potentially save you up to 73% on airfare.

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

Use this chart to determine the cheapest time to fly round-trip from Baltimore to O'Hare Intl. Price data was last updated on December 20, 2025.

Travelers seeking maximum savings on their Baltimore to Chicago O'Hare Intl Airport flight should consider departing on Friday at noon when fares are most often at their lowest. Saturday at noon flights should be avoided if possible as fares are typically the most expensive at this time.

The best insider tips for Baltimore to Chicago O'Hare Intl Airport flights

AI-powered summary based on content written by travel experts. AI can make mistakes.
Cheapflights partnered with top experts to bring you the best recommendations for your Baltimore to Chicago O'Hare Intl Airport trip
Airports
BWI

For a stress-free departure, arrive early during peak hours (6-8 a.m., 3-7 p.m.) to navigate BWI's busy security lines efficiently.

Read more about BWIBy Emily Zemler
ORD

Upon arrival at ORD, consider using the 'L' train for a quick and reliable trip to downtown Chicago, avoiding traffic delays.

Read more about ORDBy Ramsey Qubein
Our travel experts
Ramsey Qubein

Ramsey Qubein

Expert on ORD

Ramsey Qubein

Ramsey Qubein

An avid traveler and aviation expert who has visited 173 countries, all 50 states and seven continents, Ramsey Qubein flies nearly 400,000 miles a year. As a North Carolina-based freelance journalist for publications including Conde Nast Traveler, Forbes, USA Today and Bloomberg among others, he explores the latest trends in aviation, hospitality, cruises and business.

Read more
Emily Zemler

Emily Zemler

Expert on BWI

Emily Zemler

Emily Zemler

Emily is a freelance writer and book author based in London covering entertainment and travel. Her work has appeared in Los Angeles Times, Observer, and Conde Nast Traveler She has ventured to more than 40 countries and all seven continents, always in search of a great art museum. She has written extensively about hotels, luxury travel, and aviation.

Read more

Reviews of airlines servicing O'Hare Intl

Get insights into the airlines that provide service to O'Hare Intl. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to O'Hare Intl. Reviews last updated December 23, 2025.
Read through reviews of airlines operating flights from Baltimore to Chicago O'Hare Intl Airport, such as Southwest, United Airlines, and American Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Southwest
8.0
Very good
4,253 reviews

Overall

8.0

Food

7.0

Entertainment

7.5

Comfort

8.0

Crew

8.6

Boarding

8.1

Reviews

1 / 20
2.0
Mediocre

Thomas,Dec 2025

SEA - DEN

Plane two hours late in leaving 1:00 pm west coat time got home next day at 2:45am most car rental places are closed and don’t open till 5am
Southwest
8.0
Very good
4,253 reviews
Southwest
8.0
Very good
4,253 reviews

Overall

8.0

Food

7.0

Entertainment

7.5

Comfort

8.0

Crew

8.6

Boarding

8.1

Reviews

1 / 20
2.0
Mediocre

Thomas,Dec 2025

SEA - DEN

Plane two hours late in leaving 1:00 pm west coat time got home next day at 2:45am most car rental places are closed and don’t open till 5am
United Airlines
7.4
Good
9,105 reviews
Southwest
8.0
Very good
4,253 reviews

Overall

8.0

Food

7.0

Entertainment

7.5

Comfort

8.0

Crew

8.6

Boarding

8.1

Reviews

1 / 20
2.0
Mediocre

Thomas,Dec 2025

SEA - DEN

Plane two hours late in leaving 1:00 pm west coat time got home next day at 2:45am most car rental places are closed and don’t open till 5am
American Airlines
7.2
Good
11,054 reviews
Southwest
8.0
Very good
4,253 reviews

Overall

8.0

Food

7.0

Entertainment

7.5

Comfort

8.0

Crew

8.6

Boarding

8.1

Reviews

1 / 20
2.0
Mediocre

Thomas,Dec 2025

SEA - DEN

Plane two hours late in leaving 1:00 pm west coat time got home next day at 2:45am most car rental places are closed and don’t open till 5am
Spirit Airlines
6.3
Okay
8,196 reviews
Southwest
8.0
Very good
4,253 reviews

Overall

8.0

Food

7.0

Entertainment

7.5

Comfort

8.0

Crew

8.6

Boarding

8.1

Reviews

1 / 20
2.0
Mediocre

Thomas,Dec 2025

SEA - DEN

Plane two hours late in leaving 1:00 pm west coat time got home next day at 2:45am most car rental places are closed and don’t open till 5am
Frontier
5.8
Fair
3,075 reviews
Southwest
8.0
Very good
4,253 reviews

Overall

8.0

Food

7.0

Entertainment

7.5

Comfort

8.0

Crew

8.6

Boarding

8.1

Reviews

1 / 20
2.0
Mediocre

Thomas,Dec 2025

SEA - DEN

Plane two hours late in leaving 1:00 pm west coat time got home next day at 2:45am most car rental places are closed and don’t open till 5am

Related info for your journey

Find useful and relevant information for your journey from Baltimore to O'Hare Intl. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly from for flights from Baltimore to Chicago O'Hare Intl?

    If you book a flight to Chicago O'Hare Intl from Baltimore, you will be flying from Baltimore/Washington, which is the city’s only airport. Baltimore/Washington (BWI) is located 8.5 mi from the center of Baltimore. There are 12 flights from Baltimore/Washington to Chicago O'Hare Intl per day from 5 different airlines.

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

    A quick flight from Baltimore to Chicago O'Hare Intl Airport can take about 2h 10m. Spirit Airlines provides one of the quickest options available for as low as $134. The distance from Baltimore to Chicago O'Hare Intl Airport is about 620 mi. All flights are typically nonstop.

  • What are the cheapest airlines flying from Baltimore to Chicago O'Hare Intl Airport round-trip?

    Cheapflights users have booked flights from Baltimore to Chicago O'Hare Intl Airport round-trip from $41. Other airlines that can offer you cheap pricing are Frontier, from $58, and Southwest, from $148. Spirit Airlines is currently priced 85% below the average price you’ll pay for this route.

  • What are the cheapest airlines to fly from Baltimore to Chicago O'Hare Intl Airport one-way?

    $43 is the cheapest one-way deal found within the past few days, from Spirit Airlines. You may also be able to find cheap deals on Frontier and United Airlines, with prices starting from $45 and $74, respectively.

  • What are the most reliable airlines from Baltimore to Chicago O'Hare Intl Airport?

    The top 3 most reliable airlines when flying from Baltimore to Chicago O'Hare Intl Airport are Republic Airways (100%), Qatar Airways (86%) and Southwest (84%).

  • What are the cheapest flights from Baltimore to Chicago O'Hare Intl Airport?

    Looking for the cheapest flight from Baltimore to Chicago O'Hare Intl Airport? While on average our users pay $773, our data indicates the cheapest price to be $52. The most popular route (Baltimore/Washington - Chicago O'Hare Intl), is priced around $85.

  • Can I find deals for flights from Baltimore to O'Hare Intl that include hotel bookings?

    Yes. In addition to deals on Baltimore to O'Hare Intl flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Baltimore to O'Hare Intl?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Baltimore to O'Hare Intl.

  • Can I find deals for business class flights from Baltimore to O'Hare Intl?

    Yes. Cheapflights offers flight deals from Baltimore to O'Hare Intl by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Baltimore to Chicago O'Hare Intl Airport?

    Currently, January is the cheapest month in which you can book a flight from Baltimore to Chicago O'Hare Intl Airport (average of $58). Flying from Baltimore to Chicago O'Hare Intl Airport in March is currently the most expensive (average of $169). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Traveling to a place near Chicago O'Hare Intl Airport?

Book flights to Chicago O'Hare Intl Airport if you plan to visit one of these locations
Schaumburg
Rosemont
Gurnee
Elgin
Naperville
Hoffman Estates
Beloit
Delavan
Oak Brook
Downers Grove
Des Plaines
Elk Grove Village
Skokie
Lake Geneva
Bridgeview
Kenosha
Warrenville
Waukegan
Aurora
Evanston

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Top 5 airlines flying from Baltimore to O'Hare Intl

Discover the top 5 airlines that operate flights from Baltimore to O'Hare Intl. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated December 23, 2025.
AirlineCheapestAverageFlexibilityOn-time
Spirit AirlinesCheapest$52Average$120FlexibilityNo cancel feeOn-time65%
FrontierCheapest$58Average$165FlexibilityNo cancel feeOn-time62%
SouthwestCheapest$148Average$281FlexibilityNo cancel feeOn-time63%
United AirlinesCheapest$158Average$308FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$173Average$323FlexibilityNo cancel feeOn-time71%

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