HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
O'Hare Intl

$70+ 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 3/25. Fares are subject to change and may not be available on all flights or dates of travel.
BWI — ORD
feb. 24 — mar. 31
lun. 2/24
lun. 3/3
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

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
We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.
3. Compare prices and book
Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

The best prices from Baltimore/Washington to Chicago O'Hare Intl are usually found in January or April, booked 88 days in advance, depart on a Friday or Thursday and return on a Wednesday

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 febrero 19, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$95
(Mytrip)

One-way from

$70
(Southwest)

Popular in

March

Cheapest in

January

Average price

$330
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.
Search Deals
From Baltimore/Washington to Chicago O'Hare Intl
Search Deals
One-way flight from Baltimore/Washington to Chicago O'Hare Intl
Search Deals
Highest demand for flights based on searches. 9% potential increase in price ($31 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($8 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in February 2025
Search Deals

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 febrero 19, 2025.

This Frontier deal was found by Cheapflights users on 2/19. 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.
mié. 3/56:00 amBWI - ORD
1 stop11h 31mFrontier
mar. 3/115:43 pmORD - BWI
1 stop5h 34mFrontier
Deal found 2/19$100
This Mytrip deal was found by Cheapflights users on 2/18. 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.
mié. 4/26:05 amBWI - ORD
1 stop27h 39mSpirit Airlines
lun. 4/78:33 pmORD - BWI
1 stop26h 39mSpirit Airlines
Deal found 2/18$101
This FlightHub deal was found by Cheapflights users on 2/18. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sáb. 5/175:47 pmBWI - ORD
1 stop5h 41mMultiple Airlines
sáb. 5/246:01 pmORD - BWI
1 stop5h 34mMultiple Airlines
Deal found 2/18$112
This Southwest deal was found by Cheapflights users on 2/18. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 4/78:05 pmBWI - ORD
Nonstop2h 25mSouthwest
mié. 4/91:50 pmORD - BWI
Nonstop1h 55mSouthwest
Deal found 2/18$158
This American Airlines deal was found by Cheapflights users on 2/18. 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.
mié. 3/1911:51 amBWI - ORD
Nonstop2h 18mAmerican Airlines
mié. 4/26:49 pmORD - BWI
Nonstop1h 57mAmerican Airlines
Deal found 2/18$169
This United Airlines deal was found by Cheapflights users on 2/18. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 3/206:45 amBWI - ORD
Nonstop2h 20mUnited Airlines
jue. 3/271:55 pmORD - BWI
Nonstop1h 48mUnited Airlines
Deal found 2/18$219
This Delta deal was found by Cheapflights users on 2/18. 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.
jue. 3/276:00 amBWI - ORD
1 stop4h 18mDelta
lun. 3/3110:25 amORD - BWI
1 stop5h 30mDelta
Deal found 2/18$239

Find flights from Baltimore to O'Hare Intl within your budget

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 febrero 19, 2025.

Fly from

Baltimore

Fly to

O'Hare Intl

Route

Depart

Return

Price

BaltimoreChicago

BWI - ORD

BWIORD

Baltimore/Washington

mié. 3/5

6:00 am-4:31 pm

1 stop11h 31m

Chicago O'Hare Intl

mié. 3/12

8:43 am-5:55 pm

1 stop8h 12m

$100

BaltimoreChicago

BWI - ORD

BWIORD

Baltimore/Washington

mié. 4/2

6:05 am-8:44 am

1 stop27h 39m

Chicago O'Hare Intl

lun. 4/7

8:33 pm-12:12 am

1 stop26h 39m

$101

BaltimoreChicago

BWI - ORD

BWIORD

Baltimore/Washington

sáb. 5/17

5:47 pm-10:28 pm

1 stop5h 41m

Chicago O'Hare Intl

sáb. 5/24

6:01 pm-12:35 am

1 stop5h 34m

$112

BaltimoreChicago

BWI - ORD

BWIORD

Baltimore/Washington

mié. 3/19

11:51 am-1:09 pm

Nonstop2h 18m

Chicago O'Hare Intl

mié. 4/2

6:49 pm-9:46 pm

Nonstop1h 57m

$169

BaltimoreChicago

BWI - ORD

BWIORD

Baltimore/Washington

lun. 4/7

8:05 pm-9:30 pm

Nonstop2h 25m

Chicago O'Hare Intl

mié. 4/9

4:00 pm-10:35 pm

1 stop5h 35m

$187

BaltimoreChicago

BWI - ORD

BWIORD

Baltimore/Washington

jue. 3/20

6:45 am-8:05 am

Nonstop2h 20m

Chicago O'Hare Intl

jue. 3/27

1:55 pm-4:43 pm

Nonstop1h 48m

$219

BaltimoreChicago

BWI - ORD

BWIORD

Baltimore/Washington

jue. 3/27

6:00 am-9:18 am

1 stop4h 18m

Chicago O'Hare Intl

lun. 3/31

10:25 am-4:55 pm

1 stop5h 30m

$239

BaltimoreChicago

BWI - ORD

BWIORD

Baltimore/Washington

mar. 3/25

11:45 am-1:05 pm

Nonstop2h 20m

$70

BaltimoreChicago

BWI - ORD

BWIORD

Baltimore/Washington

sáb. 3/1

8:24 am-10:25 pm

1 stop15h 01m

$71

BaltimoreChicago

BWI - ORD

BWIORD

Baltimore/Washington

sáb. 3/8

9:51 pm-8:39 am

1 stop11h 48m

$72

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/18

Showing 1-10 of 15 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 February.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars
Kiwi.comPrice Accuracy3 starsTrust Score*2 stars
PricelinePrice Accuracy1 starTrust Score*3 stars
eDreamsPrice Accuracy3 starsTrust Score*3 stars
CheapOairPrice Accuracy1 starTrust Score*3 stars
FareScanPrice Accuracy-Trust Score*3 stars
CheapTicketsDealPrice Accuracy3 starsTrust Score*3 stars
Trip.comPrice Accuracy1 starTrust 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 FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Baltimore-Chicago O'Hare Intl Airport flight deals on Cheapflights vs. FlightHub >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 FlightHub the most. FlightHub 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.

Travel insights for flights from Baltimore to O'Hare Intl

Get recent, data-driven insights about flights from Baltimore to O'Hare Intl including ideal travel times, pricing trends, and more.

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 February 14, 2025.

Booking 85 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, August is the cheapest month in which you can book a flight from Baltimore to Chicago O'Hare Intl Airport (average of $245). Flying from Baltimore to Chicago O'Hare Intl Airport in March is currently the most expensive (average of $321). 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 febrero 19, 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 in the morning tend to be the most expensive. A flight in the evening could potentially save you up to 46% 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 February 16, 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.

Weekly flight availability from Baltimore to Chicago O'Hare Intl Airport

Explore weekly flight availability from Baltimore to O'Hare Intl. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated febrero 19, 2025.

The most flights from BWI to ORD are scheduled on a Friday (19 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (2 on average).

Rainfall in O'Hare Intl by month

Plan your trip to O'Hare Intl by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Chicago O'Hare Intl Airport ranges from 1.7 - 4.9 inches per month. August is typically the wettest month, when rainfall can reach 4.9 in. January is typically the driest time to visit Chicago O'Hare Intl Airport when rainfall is around 1.7 in.

Temperature in O'Hare Intl by month

Plan your trip to O'Hare Intl by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Chicago O'Hare Intl Airport, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 73.4 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 23.0 F).

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 febrero 19, 2025.
See what other customers who have flown with Southwest, Delta and United Airlines from Baltimore to Chicago have to say. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Southwest
8.1
Very good
4,413 reviews

Boarding

8.2

Overall

8.1

Food

7.1

Comfort

8.1

Crew

8.7

Entertainment

7.6

Reviews

1 / 20

2.0
Mediocre

Anonymous,Feb 2025

MCO - STL

Cancelled at last minute, SWA unable to assist in formulating alternate plans. Wound up renting a car and driving 13 hours to beat bad weather forecast at home. Not SWA’s fault that there was significant bad weather across the country.

Southwest
8.1
Very good
4,413 reviews
Southwest
8.1
Very good
4,413 reviews

Boarding

8.2

Overall

8.1

Food

7.1

Comfort

8.1

Crew

8.7

Entertainment

7.6

Reviews

1 / 20

2.0
Mediocre

Anonymous,Feb 2025

MCO - STL

Cancelled at last minute, SWA unable to assist in formulating alternate plans. Wound up renting a car and driving 13 hours to beat bad weather forecast at home. Not SWA’s fault that there was significant bad weather across the country.

Delta
8.0
Very good
8,236 reviews
Southwest
8.1
Very good
4,413 reviews

Boarding

8.2

Overall

8.1

Food

7.1

Comfort

8.1

Crew

8.7

Entertainment

7.6

Reviews

1 / 20

2.0
Mediocre

Anonymous,Feb 2025

MCO - STL

Cancelled at last minute, SWA unable to assist in formulating alternate plans. Wound up renting a car and driving 13 hours to beat bad weather forecast at home. Not SWA’s fault that there was significant bad weather across the country.

United Airlines
7.4
Good
8,771 reviews
Southwest
8.1
Very good
4,413 reviews

Boarding

8.2

Overall

8.1

Food

7.1

Comfort

8.1

Crew

8.7

Entertainment

7.6

Reviews

1 / 20

2.0
Mediocre

Anonymous,Feb 2025

MCO - STL

Cancelled at last minute, SWA unable to assist in formulating alternate plans. Wound up renting a car and driving 13 hours to beat bad weather forecast at home. Not SWA’s fault that there was significant bad weather across the country.

American Airlines
7.2
Good
10,000 reviews
Southwest
8.1
Very good
4,413 reviews

Boarding

8.2

Overall

8.1

Food

7.1

Comfort

8.1

Crew

8.7

Entertainment

7.6

Reviews

1 / 20

2.0
Mediocre

Anonymous,Feb 2025

MCO - STL

Cancelled at last minute, SWA unable to assist in formulating alternate plans. Wound up renting a car and driving 13 hours to beat bad weather forecast at home. Not SWA’s fault that there was significant bad weather across the country.

Sun Country Air
7.0
Good
374 reviews
Southwest
8.1
Very good
4,413 reviews

Boarding

8.2

Overall

8.1

Food

7.1

Comfort

8.1

Crew

8.7

Entertainment

7.6

Reviews

1 / 20

2.0
Mediocre

Anonymous,Feb 2025

MCO - STL

Cancelled at last minute, SWA unable to assist in formulating alternate plans. Wound up renting a car and driving 13 hours to beat bad weather forecast at home. Not SWA’s fault that there was significant bad weather across the country.

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 14 flights from Baltimore/Washington to Chicago O'Hare Intl per day from 6 different airlines.

  • 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 $95. Other airlines that can offer you cheap pricing are Frontier, from $100, and United Airlines, from $169. Spirit Airlines is currently priced 66% 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?

    $70 is the cheapest one-way deal found within the past few days, from Southwest. You may also be able to find cheap deals on Frontier and Spirit Airlines, with prices starting from $71 and $72, 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 ANA (92%), Royal Jordanian (90%) and United Airlines (89%).

  • 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 $1,124, our data indicates the cheapest price to be $98. The most popular route (Baltimore/Washington - Chicago O'Hare Intl), is priced around $98.

  • 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, August is the cheapest month in which you can book a flight from Baltimore to Chicago O'Hare Intl Airport (average of $245). Flying from Baltimore to Chicago O'Hare Intl Airport in March is currently the most expensive (average of $321). 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 Baltimore?

Book flights to Baltimore if you plan to visit one of these locations
Naperville
Rosemont
Schaumburg
Beloit
Racine
Hoffman Estates
Rockford
Tinley Park
Skokie
Arlington Heights
Northbrook
Joliet
Orland Park
Merrillville
Kenosha
Lake Geneva
New Buffalo
Evanston
Des Plaines
Elgin

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Top 6 airlines flying from Baltimore to O'Hare Intl

Discover the top 6 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 febrero 19, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$70Average$163FlexibilityNo cancel feeOn-time62%
Spirit AirlinesCheapest$101Average$197FlexibilityNo cancel feeOn-time65%
American AirlinesCheapest$133Average$263FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$151Average$306FlexibilityNo cancel feeOn-time69%
SouthwestCheapest$158Average$278FlexibilityNo cancel feeOn-time63%
DeltaCheapest$186Average$236FlexibilityNo cancel feeOn-timeN/A
100% Free
Cheapflights is completely free to use, so you can start saving the moment you arrive.
Book with Flexibility
Our users can plan ahead with confidence and find flights with no change fees
Travel Smart
Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.