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O'Hare Intl

$55+ 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 2/2. Fares are subject to change and may not be available on all flights or dates of travel.
BWI — ORD
dic. 6 — dic. 131
sáb. 12/6
sáb. 12/13
1 adult, Economy
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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”

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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 September or January, booked 79 days in advance, depart on a Friday or Thursday and return on a Friday

Find 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 noviembre 6, 2025.

This Super.com deal was found by Cheapflights users on 11/6. 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 Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
vie. 12/53:36 pmBWI - ORD
Nonstop2h 18mFrontier
lun. 12/86:30 pmORD - BWI
Nonstop2h 07mFrontier
Deal found 11/6$118
This Priceline deal was found by Cheapflights users on 11/6. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
vie. 11/219:18 amBWI - ORD
1 stop9h 21mFrontier
dom. 11/238:30 amORD - BWI
Nonstop1h 59mFrontier
Deal found 11/6$121
This Booking.com deal was found by Cheapflights users on 11/4. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
dom. 11/2312:24 pmBWI - ORD
1 stop6h 15mFrontier
mié. 11/264:15 pmORD - BWI
Nonstop1h 59mFrontier
Deal found 11/4$122
This Kiwi.com deal was found by Cheapflights users on 11/6. 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.
mié. 12/108:00 amBWI - ORD
1 stop7h 31mFrontier
vie. 12/124:20 pmORD - BWI
1 stop7h 12mFrontier
Deal found 11/6$123
This Mytrip deal was found by Cheapflights users on 11/6. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 11/136:15 amBWI - ORD
1 stop5h 26mFrontier
lun. 11/1712:04 pmORD - BWI
Nonstop2h 03mFrontier
Deal found 11/6$125
This Super.com deal was found by Cheapflights users on 11/6. 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 Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
vie. 11/144:02 pmBWI - ORD
Nonstop2h 16mFrontier
lun. 11/1712:04 pmORD - BWI
Nonstop2h 03mFrontier
Deal found 11/6$126
This Frontier deal was found by Cheapflights users on 11/5. 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.
jue. 11/206:38 pmBWI - ORD
1 stop6h 30mFrontier
vie. 11/2112:29 pmORD - BWI
1 stop7h 38mFrontier
Deal found 11/5$127
This CheapOair deal was found by Cheapflights users on 11/5. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 12/811:48 amBWI - ORD
1 stop6h 39mFrontier
jue. 12/1111:44 amORD - BWI
1 stop11h 40mFrontier
Deal found 11/5$128
This CheapOair deal was found by Cheapflights users on 11/6. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 12/83:36 pmBWI - ORD
Nonstop2h 18mFrontier
vie. 12/126:30 pmORD - BWI
Nonstop2h 07mFrontier
Deal found 11/6$129

Cheap 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 noviembre 6, 2025.

Most accurate provider

CheapOair
3 stars

Most trusted provider

CheapOair
3 stars

Round-trip from

$118
(Super.com)

One-way from

$55
(CheapOair)

Popular in

February

Cheapest in

September

Average price

$269
Provider with most accurate pricing for Baltimore/Washington-Chicago O'Hare Intl flight deals.
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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
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Highest demand for flights based on searches. 7% potential increase in price ($24 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($6 potential savings vs. average RT price).
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Average for round-trip flights in November 2025
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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 noviembre 6, 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

vie. 11/21

9:18 am-5:39 pm

1 stop9h 21m

Chicago O'Hare Intl

lun. 11/24

6:30 am-10:19 am

1 stop26h 49m

$144

BaltimoreChicago

BWI - ORD

BWIORD

Baltimore/Washington

vie. 12/12

1:40 pm-10:24 pm

2 stops9h 44m

Chicago O'Hare Intl

dom. 12/14

5:11 am-8:18 am

Nonstop2h 07m

$154

BaltimoreChicago

BWI - ORD

BWIORD

Baltimore/Washington

mié. 11/19

9:36 pm-9:17 am

1 stop12h 41m

Chicago O'Hare Intl

vie. 11/21

12:29 pm-9:07 pm

1 stop7h 38m

$155

BaltimoreChicago

BWI - ORD

BWIORD

Baltimore/Washington

mar. 12/23

9:37 am-10:55 am

Nonstop2h 18m

Chicago O'Hare Intl

vie. 12/26

1:40 pm-4:47 pm

Nonstop2h 07m

$159

BaltimoreChicago

BWI - ORD

BWIORD

Baltimore/Washington

lun. 11/17

9:13 am-4:56 pm

1 stop8h 43m

Chicago O'Hare Intl

dom. 11/23

3:37 pm-8:01 am

1 stop15h 24m

$167

BaltimoreChicago

BWI - ORD

BWIORD

Baltimore/Washington

vie. 1/23

7:15 am-2:45 pm

1 stop8h 30m

Chicago O'Hare Intl

dom. 1/25

1:45 pm-8:15 pm

2 stops5h 30m

$182

BaltimoreChicago

BWI - ORD

BWIORD

Baltimore/Washington

vie. 1/16

6:15 am-2:45 pm

1 stop9h 30m

Chicago O'Hare Intl

dom. 1/18

1:45 pm-8:55 pm

1 stop6h 10m

$189

BaltimoreChicago

BWI - ORD

BWIORD

Baltimore/Washington

jue. 12/4

10:40 am-9:48 pm

1 stop12h 08m

Chicago O'Hare Intl

mié. 12/10

7:41 pm-6:55 pm

3 stops22h 14m

$205

BaltimoreChicago

BWI - ORD

BWIORD

Baltimore/Washington

lun. 2/2

10:05 am-11:25 am

Nonstop2h 20m

Chicago O'Hare Intl

sáb. 2/7

11:05 am-2:11 pm

Nonstop2h 06m

$209

BaltimoreChicago

BWI - ORD

BWIORD

Baltimore/Washington

lun. 2/2

10:05 am-11:25 am

Nonstop2h 20m

Chicago O'Hare Intl

mié. 2/4

6:35 pm-9:41 pm

Nonstop2h 06m

$209

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/4

Showing 1-10 of 22 results
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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 November.
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
PricelinePrice Accuracy1 starTrust Score*3 stars
OvagoPrice Accuracy2 starsTrust Score*2 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 October 31, 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, September is the cheapest month in which you can book a flight from Baltimore to Chicago O'Hare Intl Airport (average of $81). Flying from Baltimore to Chicago O'Hare Intl Airport in March is currently the most expensive (average of $163). 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 noviembre 6, 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 75% 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 November 2, 2025.

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

How much does it cost to fly round-trip from Baltimore to Chicago O'Hare Intl Airport?

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

Snippets provided in this section are AI-generated based on a summarization of Cheapflights-commissioned articles. The articles are presented as-is, for general informational purposes only, and may not be up-to-date. The opinions contained in the articles are original to the author and reflect their authentic experience, which may vary significantly from the experience of others.
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 noviembre 6, 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
4,240 reviews

Entertainment

7.5

Food

7.0

Comfort

8.0

Crew

8.6

Boarding

8.1

Overall

8.0

Reviews

1 / 20
2.0
Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines
Southwest
8.0
Very good
4,240 reviews
Southwest
8.0
Very good
4,240 reviews

Entertainment

7.5

Food

7.0

Comfort

8.0

Crew

8.6

Boarding

8.1

Overall

8.0

Reviews

1 / 20
2.0
Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines
United Airlines
7.4
Good
9,007 reviews
Southwest
8.0
Very good
4,240 reviews

Entertainment

7.5

Food

7.0

Comfort

8.0

Crew

8.6

Boarding

8.1

Overall

8.0

Reviews

1 / 20
2.0
Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines
American Airlines
7.2
Good
11,040 reviews
Southwest
8.0
Very good
4,240 reviews

Entertainment

7.5

Food

7.0

Comfort

8.0

Crew

8.6

Boarding

8.1

Overall

8.0

Reviews

1 / 20
2.0
Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines
Spirit Airlines
6.3
Okay
8,123 reviews
Southwest
8.0
Very good
4,240 reviews

Entertainment

7.5

Food

7.0

Comfort

8.0

Crew

8.6

Boarding

8.1

Overall

8.0

Reviews

1 / 20
2.0
Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines
Frontier
5.8
Fair
3,115 reviews
Southwest
8.0
Very good
4,240 reviews

Entertainment

7.5

Food

7.0

Comfort

8.0

Crew

8.6

Boarding

8.1

Overall

8.0

Reviews

1 / 20
2.0
Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines

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 13 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 9h 21m. Frontier provides one of the quickest options available for as low as $144. The distance from Baltimore to Chicago O'Hare Intl Airport is about 620 mi.

  • 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 $52. Other airlines that can offer you cheap pricing are Frontier, from $72, and Southwest, from $156. Spirit Airlines is currently priced 81% below the average price you’ll pay for this route.

  • 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 Sun Country Air (100%), Spirit Airlines (100%) and ANA (93%).

  • 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 $909, our data indicates the cheapest price to be $56. The most popular route (Baltimore/Washington - Chicago O'Hare Intl), is priced around $76.

  • 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, September is the cheapest month in which you can book a flight from Baltimore to Chicago O'Hare Intl Airport (average of $81). Flying from Baltimore to Chicago O'Hare Intl Airport in March is currently the most expensive (average of $163). 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
Skokie
Des Plaines
Gurnee
Hoffman Estates
Beloit
Delavan
Elgin
Oak Brook
Elk Grove Village
Downers Grove
Rockford
Naperville
Orland Park
Bridgeview
Warrenville
Waukegan
Aurora
Racine

Browse thousands of different options on Cheapflights for your next trip

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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 noviembre 6, 2025.
AirlineCheapestAverageFlexibilityOn-time
Spirit AirlinesCheapest$52Average$120FlexibilityNo cancel feeOn-time65%
FrontierCheapest$72Average$168FlexibilityNo cancel feeOn-time62%
SouthwestCheapest$156Average$289FlexibilityNo cancel feeOn-time63%
United AirlinesCheapest$158Average$308FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$166Average$313FlexibilityNo cancel feeOn-time71%

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