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$72+ Cheap flights from Baltimore (BWI) to Chicago (CHI)

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 11/4. Fares are subject to change and may not be available on all flights or dates of travel.
BWI — CHI
août 4 — août 111
lun. 8/4
lun. 8/11
1 adult, Economy
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Cheapflights Tip: The best prices from Baltimore/Washington to Chicago are usually found in January or September, booked 78 days in advance, depart on a Friday or Thursday and return on a Wednesday

Cheap flight deals from Baltimore to Chicago

Discover tips and strategies to find the most affordable flight options for your journey from Baltimore (BWI) to Chicago (CHI). 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 juillet 30, 2025.

Round-trip from

$117
(Cheapflightsfares)

One-way from

$73
(Frontier)

Popular in

April

Cheapest in

January

Average price

$210
From Baltimore/Washington to Chicago (CHI)
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One-way flight from Baltimore/Washington to Chicago (CHI)
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Highest demand for flights based on searches. 16% potential increase in price ($42 potential increase over avg. RT price).
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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 July 2025
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Find flight deals from Baltimore to Chicago

Cheapest flights from Baltimore to Chicago
Explore the most affordable flight options available from Baltimore to Chicago. Find the lowest fares from popular airlines and budget airlines, with prices last updated on juillet 30, 2025.

This Cheapflightsfares deal was found by Cheapflights users on 7/29. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
ven. 9/125:40 pmBWI - MDW
Nonstop2h 03mFrontier
dim. 9/141:49 pmMDW - BWI
Nonstop2h 01mFrontier
Deal found 7/29$117
This Cheapflightsfares deal was found by Cheapflights users on 7/29. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
ven. 9/129:59 pmBWI - ORD
Nonstop2h 21mFrontier
dim. 9/146:11 pmORD - BWI
Nonstop2h 03mFrontier
Deal found 7/29$117
This Booking.com deal was found by Cheapflights users on 7/28. 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.
jeu. 9/116:00 amBWI - ORD
1 stop11h 24mSpirit Airlines
jeu. 9/186:10 amORD - BWI
Nonstop1h 52mSpirit Airlines
Deal found 7/28$118
This Southwest deal was found by Cheapflights users on 7/28. 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.
mer. 9/31:25 pmBWI - MDW
Nonstop1h 55mSouthwest
mer. 9/102:55 pmMDW - BWI
Nonstop1h 50mSouthwest
Deal found 7/28$161
This Southwest deal was found by Cheapflights users on 7/28. 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.
mer. 9/310:35 amBWI - ORD
Nonstop2h 15mSouthwest
sam. 9/61:30 pmORD - BWI
Nonstop2h 00mSouthwest
Deal found 7/28$161
This Kiwi.com deal was found by Cheapflights users on 7/27. 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.
lun. 8/1111:36 amBWI - ORD
Nonstop2h 22mMultiple Airlines
jeu. 8/146:20 amORD - BWI
Nonstop1h 49mMultiple Airlines
Deal found 7/27$165
This United Airlines deal was found by Cheapflights users on 7/28. 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.
mer. 8/2710:51 amBWI - ORD
Nonstop2h 14mUnited Airlines
dim. 8/317:00 amORD - BWI
Nonstop1h 55mUnited Airlines
Deal found 7/28$169
This Mytrip deal was found by Cheapflights users on 7/29. 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.
jeu. 9/117:49 pmBWI - RFD
2 stops19h 36mMultiple Airlines
lun. 9/1510:37 amRFD - BWI
1 stop10h 59mMultiple Airlines
Deal found 7/29$186

Cheapflights Fare Finder

 
Customize your flight search to find flights from Baltimore to Chicago 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 juillet 30, 2025.
Use the filters below to find and compare flights from Baltimore to Chicago that are best for you.

Fly from

Baltimore

Fly to

Chicago

Route

Depart

Return

Price

BaltimoreChicago

BWI - MDW

BWIMDW

Baltimore/Washington

ven. 9/12

5:40 pm-6:43 pm

Nonstop2h 03m

Chicago Midway

dim. 9/14

1:49 pm-4:50 pm

Nonstop2h 01m

$117

BaltimoreChicago

BWI - ORD

BWIORD

Baltimore/Washington

ven. 9/12

9:59 pm-11:20 pm

Nonstop2h 21m

Chicago O'Hare Intl

dim. 9/14

6:11 pm-9:14 pm

Nonstop2h 03m

$117

BaltimoreChicago

BWI - ORD

BWIORD

Baltimore/Washington

jeu. 9/11

6:00 am-4:24 pm

1 stop11h 24m

Chicago O'Hare Intl

jeu. 9/18

6:10 am-9:02 am

Nonstop1h 52m

$118

BaltimoreChicago

BWI - MDW

BWIMDW

Baltimore/Washington

mer. 9/3

1:25 pm-2:20 pm

Nonstop1h 55m

Chicago Midway

mer. 9/10

2:55 pm-5:45 pm

Nonstop1h 50m

$161

BaltimoreChicago

BWI - ORD

BWIORD

Baltimore/Washington

mer. 9/3

10:35 am-11:50 am

Nonstop2h 15m

Chicago O'Hare Intl

sam. 9/6

1:30 pm-4:30 pm

Nonstop2h 00m

$161

BaltimoreChicago

BWI - ORD

BWIORD

Baltimore/Washington

ven. 8/29

5:06 pm-6:28 pm

Nonstop2h 22m

Chicago O'Hare Intl

jeu. 9/4

6:10 am-9:02 am

Nonstop1h 52m

$166

BaltimoreChicago

BWI - ORD

BWIORD

Baltimore/Washington

mer. 8/27

10:51 am-12:05 pm

Nonstop2h 14m

Chicago O'Hare Intl

dim. 8/31

7:00 am-9:55 am

Nonstop1h 55m

$169

BaltimoreChicago

BWI - RFD

BWIRFD

Baltimore/Washington

jeu. 9/11

7:49 pm-2:25 pm

2 stops19h 36m

Chicago Greater Rockford

lun. 9/15

10:37 am-10:36 pm

1 stop10h 59m

$186

BaltimoreChicago

BWI - ORD

BWIORD

Baltimore/Washington

mar. 11/4

8:28 pm-9:23 am

1 stop13h 55m

$72

BaltimoreChicago

BWI - MDW

BWIMDW

Baltimore/Washington

sam. 10/11

5:55 pm-6:59 pm

Nonstop2h 04m

$73

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/30

Showing 1-10 of 19 results
1
2

The best insider tips for Baltimore to Chicago 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 trip
Airlines
Frontier

Frontier's UpFront Plus seats guarantee an empty middle seat for added comfort.


Early morning flights have a better chance of on-time departure and arrival.

Read more about Frontierby Marisa Garcia
United Airlines

Basic Economy allows a personal item only; no carry-on bags without exceptions.


Economy Plus offers extra legroom seats towards the front of the economy cabin.

Read more about United Airlinesby Harriet Baskas
Airports
BWI

For a stress-free departure, arrive early during busy hours (6-8 a.m. and 3-7 p.m.) to navigate security smoothly.

Read more about BWIby Emily Zemler
ORD

Take the 'L' train for a reliable and cost-effective way to reach downtown Chicago from ORD.

Read more about ORDby Ramsey Qubein
MDW

Use the Orange Line for a quick, 30-minute ride to downtown Chicago from MDW.

Read more about MDWby Ramsey Qubein
Our travel experts
Marisa Garcia

Marisa Garcia

Expert on Frontier

Marisa Garcia

Marisa Garcia

Marisa knows planes inside and out, spending 16 years working on aircraft in hangars at airports around the world. She is an aviation industry expert, specialized in airline interiors and regulations. Ten years ago, she pivoted to journalism. She shares her insights in leading aviation, travel, and business publications and on her site FlightChic.

Read more
Harriet Baskas

Harriet Baskas

Expert on United Airlines

Harriet Baskas

Harriet Baskas

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.

Read more
Ramsey Qubein

Ramsey Qubein

Expert on ORD and MDW

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

Best time to book a flight from Baltimore to Chicago

Have a flexible travel schedule? Discover the best time to fly to Chicago 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

How far ahead should I book a flight from Baltimore to Chicago?

Use this chart to determine the optimal time to book a round-trip flight from Baltimore to Chicago. Price data was last updated on July 25, 2025.

To ensure you get the cheapest price possible for a flight from Baltimore to Chicago, you should look to book at least 78 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.

What is the cheapest month to book a flight from Baltimore to Chicago?

Currently, August is the cheapest month in which you can book a flight from Baltimore to Chicago (average of $245). Flying from Baltimore to Chicago 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 CHI?

Find hourly flight availability from Baltimore to Chicago. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated juillet 30, 2025.

Unlike in the morning, when flights are generally more expensive, you can save up to 50% on flights from Baltimore to Chicago by exploring options for tickets in the afternoon.

What is the cheapest day to fly from Baltimore to Chicago?

Use this chart to determine the cheapest time to fly round-trip from Baltimore to Chicago. Price data was last updated on July 27, 2025.

Travelers seeking maximum savings on their Baltimore to Chicago flight should consider departing on Wednesday 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

Explore weekly flight availability from Baltimore to Chicago. 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 juillet 30, 2025.

The most flights from BWI to CHI are scheduled on a Wednesday (33 on average). You will have fewer flight options on Sunday, which is when the least amount of flights are scheduled (7 on average).

Reviews of airlines servicing Chicago

Get insights into the airlines that provide service to Chicago. 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 Chicago. Reviews last updated juillet 30, 2025.
Get a feel of what it's like to fly with Southwest, Delta, and United Airlines from Baltimore to Chicago by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Southwest
8.0
Very good
4,241 reviews

Overall

8.0

Entertainment

7.5

Comfort

8.0

Crew

8.6

Boarding

8.1

Food

7.0

Reviews

1 / 20
8.0
Excellent

Gina,Jul 2025

LAS - DEN

We experienced bad weather, which turned our 1.5 hour flight from Las Vegas to Denver, into 3.5. The pilot and crew kept us updated and explained that we had to circle and or possibly redirect to another airport. After circling for sometime, we were able to land smoothly in Denver. Thank you to all the flight crew, tower control, and all who got us to our destination safely.
Southwest
8.0
Very good
4,241 reviews
Southwest
8.0
Very good
4,241 reviews

Overall

8.0

Entertainment

7.5

Comfort

8.0

Crew

8.6

Boarding

8.1

Food

7.0

Reviews

1 / 20
8.0
Excellent

Gina,Jul 2025

LAS - DEN

We experienced bad weather, which turned our 1.5 hour flight from Las Vegas to Denver, into 3.5. The pilot and crew kept us updated and explained that we had to circle and or possibly redirect to another airport. After circling for sometime, we were able to land smoothly in Denver. Thank you to all the flight crew, tower control, and all who got us to our destination safely.
Delta
8.0
Very good
7,980 reviews
Southwest
8.0
Very good
4,241 reviews

Overall

8.0

Entertainment

7.5

Comfort

8.0

Crew

8.6

Boarding

8.1

Food

7.0

Reviews

1 / 20
8.0
Excellent

Gina,Jul 2025

LAS - DEN

We experienced bad weather, which turned our 1.5 hour flight from Las Vegas to Denver, into 3.5. The pilot and crew kept us updated and explained that we had to circle and or possibly redirect to another airport. After circling for sometime, we were able to land smoothly in Denver. Thank you to all the flight crew, tower control, and all who got us to our destination safely.
United Airlines
7.4
Good
8,896 reviews
Southwest
8.0
Very good
4,241 reviews

Overall

8.0

Entertainment

7.5

Comfort

8.0

Crew

8.6

Boarding

8.1

Food

7.0

Reviews

1 / 20
8.0
Excellent

Gina,Jul 2025

LAS - DEN

We experienced bad weather, which turned our 1.5 hour flight from Las Vegas to Denver, into 3.5. The pilot and crew kept us updated and explained that we had to circle and or possibly redirect to another airport. After circling for sometime, we were able to land smoothly in Denver. Thank you to all the flight crew, tower control, and all who got us to our destination safely.
Sun Country Air
6.9
Okay
334 reviews
Southwest
8.0
Very good
4,241 reviews

Overall

8.0

Entertainment

7.5

Comfort

8.0

Crew

8.6

Boarding

8.1

Food

7.0

Reviews

1 / 20
8.0
Excellent

Gina,Jul 2025

LAS - DEN

We experienced bad weather, which turned our 1.5 hour flight from Las Vegas to Denver, into 3.5. The pilot and crew kept us updated and explained that we had to circle and or possibly redirect to another airport. After circling for sometime, we were able to land smoothly in Denver. Thank you to all the flight crew, tower control, and all who got us to our destination safely.
Spirit Airlines
6.3
Okay
8,048 reviews
Southwest
8.0
Very good
4,241 reviews

Overall

8.0

Entertainment

7.5

Comfort

8.0

Crew

8.6

Boarding

8.1

Food

7.0

Reviews

1 / 20
8.0
Excellent

Gina,Jul 2025

LAS - DEN

We experienced bad weather, which turned our 1.5 hour flight from Las Vegas to Denver, into 3.5. The pilot and crew kept us updated and explained that we had to circle and or possibly redirect to another airport. After circling for sometime, we were able to land smoothly in Denver. Thank you to all the flight crew, tower control, and all who got us to our destination safely.

Related info for your journey

Find useful and relevant information for your journey from Baltimore to Chicago. 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?

    If you book a flight to Chicago 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 23 flights from Baltimore/Washington to Chicago per day from 6 different airlines.

  • What are the cheapest airlines flying from Baltimore to Chicago round-trip?

    Cheapflights users have booked flights from Baltimore to Chicago round-trip from $117. Other airlines that can offer you cheap pricing are Spirit Airlines, from $118, and Southwest, from $161. You may be able to fly from Baltimore to Chicago for 46% less than the average price by searching for these airlines.

  • What are the cheapest airlines to fly from Baltimore to Chicago one-way?

    For one-way options, check prices for Frontier. According to our data, you can fly for as low as $73. Users have also found prices from $74 and $81 on Spirit Airlines and Southwest, respectively.

  • What are the most popular routes from Baltimore to Chicago?

    When deciding which route to take from Baltimore to Chicago consider Baltimore/Washington - Chicago O'Hare Intl, Baltimore/Washington - Chicago Midway or Baltimore/Washington - Chicago Greater Rockford as they are the most popular.

  • What are the most reliable airlines from Baltimore to Chicago?

    No one likes to see their flight delayed. When booking a flight from Baltimore to Chicago consider choosing ANA (95%), Spirit Airlines (93%) or Royal Jordanian (88%) as they are the most reliable in getting you off to your destination on time.

  • What are the cheapest flights from Baltimore to Chicago?

    On average you can expect to pay $1,494 for a flight from Baltimore to Chicago. The cheapest flight overall is $76 while the most popular route, (Baltimore/Washington - Chicago O'Hare Intl) is currently priced at $77.

  • Can I find deals for flights from Baltimore to Chicago that include hotel bookings?

    Yes. In addition to deals on Baltimore to Chicago flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Baltimore to Chicago?

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

  • Can I find deals for business class flights from Baltimore to Chicago?

    Yes. Cheapflights offers flight deals from Baltimore to Chicago 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?

    Currently, August is the cheapest month in which you can book a flight from Baltimore to Chicago (average of $245). Flying from Baltimore to Chicago 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 Chicago?

Book flights to Chicago if you plan to visit one of these locations
Merrillville
Lansing
Hammond
Benton Harbor
Porter
Valparaiso
Chesterton

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Alternative routes for Baltimore to Chicago

See prices for flight routes from nearby airports that may be better suited for you.
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Top 6 airlines flying from Baltimore to Chicago

Discover the top 6 airlines that operate flights from Baltimore to Chicago. 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 juillet 30, 2025.
AirlineCheapestAverageFlexibilityOn-time
Spirit AirlinesCheapest$52Average$152FlexibilityNo cancel feeOn-time65%
FrontierCheapest$61Average$160FlexibilityNo cancel feeOn-time62%
DeltaCheapest$98Average$310FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$152Average$292FlexibilityNo cancel feeOn-time71%
SouthwestCheapest$157Average$289FlexibilityNo cancel feeOn-time63%
United AirlinesCheapest$157Average$302FlexibilityNo cancel feeOn-time69%

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