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Cheap flights from Baltimore to Chicago from $104

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 6/20. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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0 bags

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Cheap round-trip flights

Enter your travel dates to find the best prices.
Frontier Logo
8:52 am - 7:41 pm
BWI
-
ORD
11h 49m
1 stop
Frontier Logo
8:05 am - 7:43 am
ORD
-
BWI
22h 38m
2 stops
$209Frontier
Sat, May 23 - Tue, May 26
Frontier Logo
8:36 am - 7:53 pm
BWI
-
ORD
12h 17m
1 stop
Frontier Logo
7:05 am - 3:34 pm
ORD
-
BWI
7h 29m
1 stop
$210Frontier
Wed, Jul 8 - Sun, Jul 12
Frontier Logo
9:23 pm - 7:55 am
BWI
-
ORD
11h 32m
1 stop
Frontier Logo
4:05 pm - 7:43 am
ORD
-
BWI
14h 38m
2 stops
$211Frontier
Fri, May 29 - Fri, Jun 5
United Airlines Logo
8:25 am - 9:39 am
BWI
-
ORD
2h 14mnonstop
United Airlines Logo
6:20 pm - 9:26 pm
ORD
-
BWI
2h 06mnonstop
$212United Airlines
Wed, May 27 - Thu, Jun 4
Frontier Logo
9:32 pm - 8:03 am
BWI
-
ORD
11h 31m
1 stop
Frontier Logo
6:55 am - 4:26 pm
ORD
-
BWI
8h 31m
1 stop
$213Frontier
Mon, Jun 15 - Sat, Jun 20
Frontier Logo
8:52 am - 7:51 pm
BWI
-
ORD
11h 59m
1 stop
Frontier Logo
3:44 pm - 5:07 pm
ORD
-
BWI
24h 23m
1 stop
$214Frontier
Thu, May 14 - Sun, May 17
Frontier Logo
11:09 am - 12:32 pm
BWI
-
ORD
2h 23mnonstop
Frontier Logo
9:33 pm - 8:57 am
ORD
-
BWI
10h 24m
1 stop
$215Frontier
Sat, Oct 10 - Mon, Oct 12
Multiple Airlines Logo
4:33 pm - 11:15 pm
BWI
-
ORD
7h 42m
1 stop
Multiple Airlines Logo
6:55 am - 3:34 pm
ORD
-
BWI
7h 39m
1 stop
$216Multiple Airlines
Wed, May 27 - Sun, May 31
Frontier Logo
1:10 pm - 12:25 pm
BWI
-
ORD
24h 15m
1 stop
Frontier Logo
7:05 am - 3:34 pm
ORD
-
BWI
7h 29m
1 stop
$217Frontier
Wed, Jul 15 - Sun, Jul 19
Frontier Logo
9:32 pm - 8:03 am
BWI
-
ORD
11h 31m
1 stop
Frontier Logo
1:50 pm - 11:00 pm
ORD
-
BWI
8h 10m
1 stop
$218Frontier
Mon, Aug 17 - Thu, Aug 27

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
Jun 3
BWI10:34 amBaltimore/Washington
2h 18m
ORD11:52 amChicago O'Hare Intl
Jun 10
ORD12:00 pmChicago O'Hare Intl
4h 46m
1 stop
BWI5:46 pmBaltimore/Washington
$222
American Airlines
Jun 6
BWI8:11 pmBaltimore/Washington
4h 47m
1 stop
ORD11:58 pmChicago O'Hare Intl
Jun 9
ORD9:00 pmChicago O'Hare Intl
1h 59m
BWI11:59 pmBaltimore/Washington
$245
American Airlines
Jun 3
BWI6:07 amBaltimore/Washington
2h 23m
ORD7:30 amChicago O'Hare Intl
Jun 8
ORD9:00 pmChicago O'Hare Intl
1h 59m
BWI11:59 pmBaltimore/Washington
$252

Frontier flights from Baltimore to Chicago O'Hare Intl Airport

Our best Frontier deals on Baltimore to Chicago O'Hare Intl Airport flight tickets
Frontier
May 23
BWI8:52 amBaltimore/Washington
11h 49m
1 stop
ORD7:41 pmChicago O'Hare Intl
May 26
ORD8:05 amChicago O'Hare Intl
22h 38m
2 stops
BWI7:43 amBaltimore/Washington
$209
Frontier
Jul 8
BWI8:36 amBaltimore/Washington
12h 17m
1 stop
ORD7:53 pmChicago O'Hare Intl
Jul 12
ORD7:05 amChicago O'Hare Intl
7h 29m
1 stop
BWI3:34 pmBaltimore/Washington
$210
Frontier
May 29
BWI9:23 pmBaltimore/Washington
11h 32m
1 stop
ORD7:55 amChicago O'Hare Intl
Jun 5
ORD4:05 pmChicago O'Hare Intl
14h 38m
2 stops
BWI7:43 amBaltimore/Washington
$211

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 May 4, 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 - ORD

BWIORD

Baltimore/Washington

Sat 5/23

8:52 am-7:41 pm

1 stop11h 49m

Chicago O'Hare Intl

Tue 5/26

8:05 am-7:43 am

2 stops22h 38m

$209

BaltimoreChicago

BWI - ORD

BWIORD

Baltimore/Washington

Wed 7/8

8:36 am-7:53 pm

1 stop12h 17m

Chicago O'Hare Intl

Sun 7/12

7:05 am-3:34 pm

1 stop7h 29m

$210

BaltimoreChicago

BWI - ORD

BWIORD

Baltimore/Washington

Fri 5/29

9:23 pm-7:55 am

1 stop11h 32m

Chicago O'Hare Intl

Fri 6/5

4:05 pm-7:43 am

2 stops14h 38m

$211
Quickest round-trip

BaltimoreChicago

BWI - ORD

BWIORD

Baltimore/Washington

Wed 5/27

8:25 am-9:39 am

Nonstop2h 14m

Chicago O'Hare Intl

Thu 6/4

6:20 pm-9:26 pm

Nonstop2h 06m

$212

BaltimoreChicago

BWI - ORD

BWIORD

Baltimore/Washington

Mon 6/15

9:32 pm-8:03 am

1 stop11h 31m

Chicago O'Hare Intl

Sat 6/20

6:55 am-4:26 pm

1 stop8h 31m

$213

BaltimoreChicago

BWI - ORD

BWIORD

Baltimore/Washington

Thu 5/14

8:52 am-7:51 pm

1 stop11h 59m

Chicago O'Hare Intl

Sun 5/17

3:44 pm-5:07 pm

1 stop24h 23m

$214

BaltimoreChicago

BWI - ORD

BWIORD

Baltimore/Washington

Sat 10/10

11:09 am-12:32 pm

Nonstop2h 23m

Chicago O'Hare Intl

Mon 10/12

9:33 pm-8:57 am

1 stop10h 24m

$215

BaltimoreChicago

BWI - ORD

BWIORD

Baltimore/Washington

Wed 5/27

4:33 pm-11:15 pm

1 stop7h 42m

Chicago O'Hare Intl

Sun 5/31

6:55 am-3:34 pm

1 stop7h 39m

$216

BaltimoreChicago

BWI - ORD

BWIORD

Baltimore/Washington

Wed 7/15

1:10 pm-12:25 pm

1 stop24h 15m

Chicago O'Hare Intl

Sun 7/19

7:05 am-3:34 pm

1 stop7h 29m

$217

BaltimoreChicago

BWI - ORD

BWIORD

Baltimore/Washington

Mon 8/17

9:32 pm-8:03 am

1 stop11h 31m

Chicago O'Hare Intl

Thu 8/27

1:50 pm-11:00 pm

1 stop8h 10m

$218

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?

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

The month of September 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 Friday when prices can be found for as low as $395. This is often the case because there is less demand to fly during this day of the week. On the other hand, Sunday 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 $534.

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 $391 when looking at flights departing in the evening. Try not to purchase tickets in the afternoon because they tend to be around $441. 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 $269 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 $191 on momondo.

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

As of May 2026, prices for Baltimore to Chicago O'Hare Intl Airport flights are approximately 7% cheaper 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

$176

Fastest flight time

2h 12m

Direct flights

Every day
The best one-way flight to Chicago O'Hare Intl Airport from Baltimore in the past 72 hours is $176. The best round-trip flight deal from Baltimore to Chicago O'Hare Intl Airport found on momondo in the last 72 hours is $328.
The fastest flight from Baltimore to Chicago O'Hare Intl Airport takes 2h 12m
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 12m.

  • 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
Spirit AirlinesPriceFrom $43Free CancellationRating
6.3
8,631 reviews
Search Spirit Airlines flights
FrontierPriceFrom $57Free CancellationRating
5.6
2,965 reviews
Search Frontier flights
SouthwestPriceFrom $134Free CancellationRating
7.9
4,307 reviews
Search Southwest flights
United AirlinesPriceFrom $152Free CancellationRating
7.4
9,680 reviews
Search United Airlines flights
American AirlinesPriceFrom $158Free CancellationRating
7.1
11,670 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 14 flights/week on average for this route. A good United Airlines flight deal for Baltimore to Chicago O'Hare Intl Airport starts from $152 round-trip, up to an average price of $311. 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 11,670 reviews) operates around 26 flights from Baltimore to Chicago O'Hare Intl Airport in any given week. The average American Airlines airfare for this route is around $310, with deals from around $158 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
South Haven
Rockford
Merrillville
Gurnee
Rosemont
Naperville
New Buffalo
Orland Park
Oak Brook
Kenosha
Joliet
Aurora
Janesville
Racine
Hammond
Tinley Park
Elgin
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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