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Cheap flights from Baltimore to Chicago from $89

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Baltimore to Chicago departing on 9/4. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
1 adult, Economy, 0 bags

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from Baltimore to Chicago

Cheap round-trip flights

Enter your travel dates to find the best prices.
Frontier Logo
5:08 pm - 6:39 pmBWI  Baltimore/Washington-ORD Chicago O'Hare Intl
2h 31mnonstop
Frontier Logo
7:05 am - 5:43 pmORD  Chicago O'Hare Intl-BWI Baltimore/Washington
9h 38m1 stop Atlanta Hartsfield-Jackson
$189Frontier
Thu, Aug 27 - Tue, Sep 1
Frontier Logo
5:08 pm - 6:39 pmBWI  Baltimore/Washington-ORD Chicago O'Hare Intl
2h 31mnonstop
Frontier Logo
7:05 am - 5:43 pmORD  Chicago O'Hare Intl-BWI Baltimore/Washington
9h 38m1 stop Atlanta Hartsfield-Jackson
$189Frontier
Thu, Aug 27 - Wed, Sep 2
American Airlines Logo
11:23 am - 12:40 pmBWI  Baltimore/Washington-ORD Chicago O'Hare Intl
2h 17mnonstop
American Airlines Logo
6:58 am - 10:07 amORD  Chicago O'Hare Intl-BWI Baltimore/Washington
2h 09mnonstop
$189American Airlines
Sat, Sep 12 - Mon, Sep 14
American Airlines Logo
1:39 pm - 3:00 pmBWI  Baltimore/Washington-ORD Chicago O'Hare Intl
2h 21mnonstop
American Airlines Logo
6:58 am - 10:07 amORD  Chicago O'Hare Intl-BWI Baltimore/Washington
2h 09mnonstop
$189American Airlines
Sat, Sep 12 - Mon, Sep 14
Frontier Logo
11:09 am - 12:32 pmBWI  Baltimore/Washington-ORD Chicago O'Hare Intl
2h 23mnonstop
Frontier Logo
7:00 am - 10:14 amORD  Chicago O'Hare Intl-BWI Baltimore/Washington
2h 14mnonstop
$190Frontier
Fri, Oct 16 - Sun, Oct 18
United Airlines Logo
12:15 pm - 1:31 pmBWI  Baltimore/Washington-ORD Chicago O'Hare Intl
2h 16mnonstop
United Airlines Logo
10:49 am - 1:58 pmORD  Chicago O'Hare Intl-BWI Baltimore/Washington
2h 09mnonstop
$191United Airlines
Thu, Sep 24 - Mon, Sep 28
American Airlines Logo
6:31 pm - 8:00 pmBWI  Baltimore/Washington-ORD Chicago O'Hare Intl
2h 29mnonstop
American Airlines Logo
9:20 pm - 12:24 amORD  Chicago O'Hare Intl-BWI Baltimore/Washington
2h 04mnonstop
$191American Airlines
Mon, Oct 19 - Thu, Oct 22
United Airlines Logo
10:25 am - 11:45 amBWI  Baltimore/Washington-ORD Chicago O'Hare Intl
2h 20mnonstop
United Airlines Logo
7:45 pm - 11:00 pmORD  Chicago O'Hare Intl-BWI Baltimore/Washington
2h 15mnonstop
$194United Airlines
Tue, Sep 1 - Thu, Sep 3
Delta Logo
7:00 am - 12:40 pmBWI  Baltimore/Washington-ORD Chicago O'Hare Intl
6h 40m1 stop Atlanta Hartsfield-Jackson
Delta Logo
8:05 am - 3:41 pmORD  Chicago O'Hare Intl-BWI Baltimore/Washington
6h 36m1 stop Atlanta Hartsfield-Jackson
$201Delta
Sun, Sep 6 - Sat, Sep 12
Delta Logo
6:00 am - 12:40 pmBWI  Baltimore/Washington-ORD Chicago O'Hare Intl
7h 40m1 stop Atlanta Hartsfield-Jackson
Delta Logo
7:05 am - 11:45 amORD  Chicago O'Hare Intl-BWI Baltimore/Washington
3h 40m1 stop Detroit Metropolitan Wayne County
$201Delta
Sun, Sep 6 - Sat, Sep 12

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American Airlines flights from Baltimore to Chicago O'Hare Intl Airport

Our best American Airlines deals on Baltimore to Chicago O'Hare Intl Airport flight tickets
American Airlines
Sep 12
BWI1:39 pmBaltimore/Washington
2h 21m
ORD3:00 pmChicago O'Hare Intl
Sep 14
ORD6:58 amChicago O'Hare Intl
2h 09m
BWI10:07 amBaltimore/Washington
$189
American Airlines
Sep 10
BWI6:01 amBaltimore/Washington
2h 29m
ORD7:30 amChicago O'Hare Intl
Sep 14
ORD6:58 amChicago O'Hare Intl
2h 09m
BWI10:07 amBaltimore/Washington
$197
American Airlines
Sep 5
BWI8:10 pmBaltimore/Washington
2h 27m
ORD9:37 pmChicago O'Hare Intl
Sep 8
ORD5:05 amChicago O'Hare Intl
5h 04m
1 stop
BWI11:09 amBaltimore/Washington
$218

Delta flights from Baltimore to Chicago O'Hare Intl Airport

Our best Delta deals on Baltimore to Chicago O'Hare Intl Airport flight tickets
Delta
Sep 6
BWI7:00 amBaltimore/Washington
6h 40m
1 stop
ORD12:40 pmChicago O'Hare Intl
Sep 12
ORD8:05 amChicago O'Hare Intl
6h 36m
1 stop
BWI3:41 pmBaltimore/Washington
$201
Delta
Sep 9
BWI6:10 amBaltimore/Washington
5h 27m
1 stop
ORD10:37 amChicago O'Hare Intl
Sep 9
ORD3:40 pmChicago O'Hare Intl
4h 48m
1 stop
BWI9:28 pmBaltimore/Washington
$205
Delta
Sep 3
BWI10:25 amBaltimore/Washington
7h 26m
1 stop
ORD4:51 pmChicago O'Hare Intl
Sep 6
ORD10:50 amChicago O'Hare Intl
7h 35m
1 stop
BWI7:25 pmBaltimore/Washington
$210

momondo Fare Finder

 
Customize your flight search to find flights from Baltimore to Chicago O'Hare Intl Airport 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, momondo users made 832,500 searches. Data last updated August 13, 2026.
Use the filters below to find and compare flights from Baltimore to Chicago O'Hare Intl Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

BaltimoreChicago

BWI Baltimore/Washington - ORD Chicago O'Hare Intl

BWIORD

Baltimore/Washington

Thu 8/27

5:08 pm-6:39 pm

Nonstop2h 31m

Chicago O'Hare Intl

Tue 9/1

7:05 am-5:43 pm

1 stop9h 38m

$189

BaltimoreChicago

BWI Baltimore/Washington - ORD Chicago O'Hare Intl

BWIORD

Baltimore/Washington

Thu 8/27

5:08 pm-6:39 pm

Nonstop2h 31m

Chicago O'Hare Intl

Wed 9/2

7:05 am-5:43 pm

1 stop9h 38m

$189

BaltimoreChicago

BWI Baltimore/Washington - ORD Chicago O'Hare Intl

BWIORD

Baltimore/Washington

Sat 9/12

11:23 am-12:40 pm

Nonstop2h 17m

Chicago O'Hare Intl

Mon 9/14

6:58 am-10:07 am

Nonstop2h 09m

$189

BaltimoreChicago

BWI Baltimore/Washington - ORD Chicago O'Hare Intl

BWIORD

Baltimore/Washington

Sat 9/12

1:39 pm-3:00 pm

Nonstop2h 21m

Chicago O'Hare Intl

Mon 9/14

6:58 am-10:07 am

Nonstop2h 09m

$189

BaltimoreChicago

BWI Baltimore/Washington - ORD Chicago O'Hare Intl

BWIORD

Baltimore/Washington

Fri 10/16

11:09 am-12:32 pm

Nonstop2h 23m

Chicago O'Hare Intl

Sun 10/18

7:00 am-10:14 am

Nonstop2h 14m

$190
Quickest round-trip

BaltimoreChicago

BWI Baltimore/Washington - ORD Chicago O'Hare Intl

BWIORD

Baltimore/Washington

Thu 9/24

12:15 pm-1:31 pm

Nonstop2h 16m

Chicago O'Hare Intl

Mon 9/28

10:49 am-1:58 pm

Nonstop2h 09m

$191

BaltimoreChicago

BWI Baltimore/Washington - ORD Chicago O'Hare Intl

BWIORD

Baltimore/Washington

Mon 10/19

6:31 pm-8:00 pm

Nonstop2h 29m

Chicago O'Hare Intl

Thu 10/22

9:20 pm-12:24 am

Nonstop2h 04m

$191

BaltimoreChicago

BWI Baltimore/Washington - ORD Chicago O'Hare Intl

BWIORD

Baltimore/Washington

Tue 9/1

10:25 am-11:45 am

Nonstop2h 20m

Chicago O'Hare Intl

Thu 9/3

7:45 pm-11:00 pm

Nonstop2h 15m

$194

BaltimoreChicago

BWI Baltimore/Washington - ORD Chicago O'Hare Intl

BWIORD

Baltimore/Washington

Sun 9/6

7:00 am-12:40 pm

1 stop6h 40m

Chicago O'Hare Intl

Sat 9/12

8:05 am-3:41 pm

1 stop6h 36m

$201

BaltimoreChicago

BWI Baltimore/Washington - ORD Chicago O'Hare Intl

BWIORD

Baltimore/Washington

Sun 9/6

6:00 am-12:40 pm

1 stop7h 40m

Chicago O'Hare Intl

Sat 9/12

7:05 am-11:45 am

1 stop3h 40m

$201

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to Chicago from

How to get the cheapest flight ticket from Baltimore to Chicago O'Hare Intl Airport

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the typical price of a round-trip flight between Baltimore and Chicago O'Hare Intl Airport?

Prices are currently low for flights on this route.

Typical prices usually range from $211 to $393.
The lowest price recently found on this route was $189.

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

The month of October is another great option to travel to Chicago O'Hare Intl Airport, with average flight prices from Baltimore averaging around $234.

What is the cheapest day to depart on your flight to Chicago O'Hare Intl Airport?

The cheapest day to depart on your flight to Chicago O'Hare Intl Airport is on a Saturday when prices can be found for as low as $411. This is often the case because there is less demand to fly during this day of the week. On the other hand, Monday is the most expensive day to depart from Baltimore because it is more convenient for both business and leisure travelers. As a result, prices tend to be around $558.

What is the cheapest time of day to depart on your flight to Chicago O'Hare Intl Airport?

Flying to Chicago O'Hare Intl Airport from Baltimore in the evening is the least expensive time of day to depart. momondo users have found prices as low as $423 when looking at flights departing in the evening. Try not to purchase tickets in the afternoon because they tend to be around $482. Of course, these prices can vary depending on the time of year and what airport you fly to.

What is the cheapest Baltimore/Washington to Chicago O'Hare Intl flight route?

Fly from Baltimore/Washington to Chicago O'Hare Intl for the best Baltimore/Washington - Chicago O'Hare Intl flight prices

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

You are more likely to see cheaper flights to Chicago O'Hare Intl Airport from Baltimore when booking weeks ahead of your departure date. In general, you can expect to find flights to Chicago O'Hare Intl Airport for around $291 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Chicago O'Hare Intl Airport from Baltimore for as low as $243 on momondo.

What cabin class options are available on Baltimore to Chicago O'Hare Intl Airport flights?

There are 4 cabin classes available to choose from on Baltimore to Chicago O'Hare Intl Airport flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

How have Baltimore to Chicago O'Hare Intl Airport flight prices changed over time?

As of August 2026, prices for Baltimore to Chicago O'Hare Intl Airport flights are approximately 2% more expensive when compared to flights at the same time last year.

When to book flights from Baltimore to Chicago O'Hare Intl Airport

Are you open to changing your travel dates? Check out the ideal times to fly from Baltimore to Chicago O'Hare Intl Airport according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Baltimore to Chicago O'Hare Intl Airport (BWI to ORD) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Baltimore to Chicago O'Hare Intl Airport

Best Price Found

$188

Fastest flight time

2h 10m

Direct flights

Every day
The best one-way flight to Chicago O'Hare Intl Airport from Baltimore in the past 72 hours is $188. The best round-trip flight deal from Baltimore to Chicago O'Hare Intl Airport found on momondo in the last 72 hours is $339.
The fastest flight from Baltimore to Chicago O'Hare Intl Airport takes 2h 10m
Direct flights go from Baltimore to Chicago O'Hare Intl Airport every day.
Search flight deals

Frequently asked questions about flying from Baltimore to Chicago O'Hare Intl Airport

  • How far is Baltimore/Washington to Chicago O'Hare Intl by plane?

    The straight-line distance from Baltimore/Washington to Chicago O'Hare Intl is 619.6 mi. By plane, this route typically takes 2h 10m.

  • When did momondo last update prices for flights from Baltimore/Washington Airport to Chicago O'Hare Intl Airport?

    Prices for flights from Baltimore/Washington Airport to Chicago O'Hare Intl Airport refresh daily.

  • How many operators does momondo search for flights from Baltimore/Washington Airport to Chicago O'Hare Intl Airport?

  • How old do you have to be to fly from Baltimore/Washington Airport to Chicago O'Hare Intl Airport?

    The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Baltimore/Washington Airport to Chicago O'Hare Intl Airport.

  • What documentation or ID do you need to fly to Chicago O'Hare Intl Airport?

    The required travel and health documents for your Chicago O'Hare Intl Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Chicago O'Hare Intl Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

  • What is the most popular plane model from Baltimore to Chicago O'Hare Intl Airport?

  • What is the most popular airline from Baltimore to Chicago O'Hare Intl Airport?

Best airlines flying from Baltimore to Chicago O'Hare Intl Airport

Compare and see reviews for airlines that fly from Baltimore to Chicago O'Hare Intl Airport with momondo
Airline
Rating
Free Cancellation
Price
FrontierPriceFrom $57Free CancellationRating
5.6
2,700 reviews
Search Frontier flights
SouthwestPriceFrom $134Free CancellationRating
8.0
4,217 reviews
Search Southwest flights
United AirlinesPriceFrom $166Free CancellationRating
7.4
10,112 reviews
Search United Airlines flights
American AirlinesPriceFrom $174Free CancellationRating
7.1
11,921 reviews
Search American Airlines flights

  • United Airlines Flights From Baltimore to Chicago O'Hare Intl Airport

    United Airlines is one of the most popular airlines flying from Baltimore to Chicago O'Hare Intl Airport, operating 12 flights/week on average for this route. A good United Airlines flight deal for Baltimore to Chicago O'Hare Intl Airport starts from $166 round-trip, up to an average price of $334. Our users have rated United Airlines at 7.4/10.

  • American Airlines Flights From Baltimore to Chicago O'Hare Intl Airport

    American Airlines (7.1/10 from 11,921 reviews) operates around 11 flights from Baltimore to Chicago O'Hare Intl Airport in any given week. The average American Airlines airfare for this route is around $317, with deals from around $174 rare but found on momondo. Referenced prices are for round-trip Baltimore to Chicago O'Hare Intl Airport flight searches in the last 72 hours.

Traveling to a place near Chicago?

Book flights to Chicago if you plan to visit one of these locations
Lake Geneva
Schaumburg
Merrillville
Rockford
South Haven
Gurnee
Rosemont
Oak Brook
Orland Park
Naperville
Joliet
New Buffalo
Kenosha
Hammond
Racine
Aurora
Janesville
Elgin
South Holland
Evanston

Why use momondo?

Why should I use momondo to find a flight deal from Baltimore to Chicago?

momondo collates all your flight options in one place and lets you filter them to find the perfect flight from Baltimore to Chicago. momondo saves you time and could save you money on your trip.

Can I find flights from Baltimore to Chicago with flexible booking policies on momondo?

Yes. momondo enables you to select and highlight flights to Chicago from Baltimore with this policy.

How can momondo help me find flights from Baltimore to Chicago?

Once all potential Baltimore to Chicago flight options are in front of you, momondo lets you sort and filter flights based on preferences such as airline, price and flight times amongst many other options.

I’m not ready to book a flight from Baltimore to Chicago right now. Can momondo alert me if prices change?

Yes momondo offers price alerts on flights to Chicago from Baltimore. After performing a search on this page you should be able to see the price alert set up feature. Simply provide a valid email address and momondo will instantly alert you when prices change.

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