What is the cheapest airline that flies from Baltimore/Washington to Chicago O'Hare Intl?

Delta is the most popular carrier operating from Baltimore/Washington to Chicago O'Hare Intl

What airlines fly to Chicago O'Hare Intl Airport?

United Airlines, American Airlines and Frontier are the top three most popular airlines that fly to Chicago O'Hare Intl Airport from Baltimore according to our data. United Airlines is the first choice among our users, with 60% of people opting to fly with this airline when traveling to Chicago O'Hare Intl Airport. Keep in mind that there are 4 different airlines that fly to Chicago O'Hare Intl Airport on a routine basis, so you have a few additional options to choose from.

How many flights depart from Baltimore to Chicago O'Hare Intl Airport on average per day?

As of June 2026, there are 17 flights per day flying from Baltimore to Chicago O'Hare Intl Airport. The most common time of day flights depart is 10:00AM, with 76% of flights taking off at noon.

How many flights depart from Baltimore to Chicago O'Hare Intl Airport on average per week?

As of June 2026, 123 flights take off from Baltimore and land in Chicago O'Hare Intl Airport each week. The most common flight departure day for this route is Tue, with 17% of weekly flights taking off on this day.

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?

As of June 2026, there are 4 operators available to choose from 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.

$80 Cheap Flights from Baltimore to Chicago O'Hare Intl Airport in 2026

Q: 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 $262 to $418. The lowest price recently found on this route was $232.

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from Baltimore to Chicago

Round-trip

One-way

Last minute

Direct

Cheap round-trip flights

Enter your travel dates to find the best prices.

12:02 pm - 1:26 pm

BWI

ORD

2h 24mnonstop

2:03 pm - 8:29 am

ORD

BWI

17h 26m

1 stop

$232Frontier

Sun, Sep 27 - Tue, Sep 29

8:36 am - 7:53 pm

BWI

ORD

12h 17m

1 stop

7:05 am - 3:34 pm

ORD

BWI

7h 29m

1 stop

$233Frontier

Tue, Jul 21 - Wed, Jul 22

2:18 pm - 8:55 pm

BWI

ORD

7h 37m

1 stop

8:05 am - 3:46 pm

ORD

BWI

6h 41m

1 stop

$234Delta

Sat, Aug 8 - Tue, Aug 11

8:36 am - 7:53 pm

BWI

ORD

12h 17m

1 stop

7:05 am - 6:33 pm

ORD

BWI

10h 28m

1 stop

$235Frontier

Wed, Jul 8 - Wed, Jul 15

8:36 am - 7:53 pm

BWI

ORD

12h 17m

1 stop

7:05 am - 3:34 pm

ORD

BWI

7h 29m

1 stop

$236Frontier

Tue, Jul 14 - Wed, Jul 15

9:37 pm - 7:53 am

BWI

ORD

11h 16m

1 stop

1:50 pm - 11:17 pm

ORD

BWI

8h 27m

1 stop

$237Frontier

Tue, Jul 14 - Wed, Jul 15

6:15 am - 7:30 am

BWI

ORD

2h 15mnonstop

8:13 pm - 11:19 pm

ORD

BWI

2h 06mnonstop

$238United Airlines

Sat, Aug 1 - Thu, Aug 6

1:55 pm - 5:39 pm

BWI

ORD

4h 44m

1 stop

6:51 am - 9:58 am

ORD

BWI

2h 07mnonstop

$239American Airlines

Tue, Jul 21 - Tue, Jul 28

12:02 pm - 1:26 pm

BWI

ORD

2h 24mnonstop

8:00 am - 11:07 am

ORD

BWI

2h 07mnonstop

$240Frontier

Fri, Sep 11 - Sun, Sep 13

9:32 pm - 7:53 am

BWI

ORD

11h 21m

1 stop

8:00 am - 11:07 am

ORD

BWI

2h 07mnonstop

$241Frontier

Thu, Sep 3 - Thu, Sep 10

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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

Jul 28

BWI8:13 pmBaltimore/Washington

2h 31m

ORD9:44 pmChicago O'Hare Intl

Aug 5

ORD6:55 pmChicago O'Hare Intl

2h 04m

BWI9:59 pmBaltimore/Washington

$229

American Airlines

Jul 29

BWI1:55 pmBaltimore/Washington

4h 44m

1 stop

ORD5:39 pmChicago O'Hare Intl

Aug 1

ORD6:54 amChicago O'Hare Intl

2h 07m

BWI10:01 amBaltimore/Washington

$239

American Airlines

Aug 8

BWI8:10 pmBaltimore/Washington

2h 27m

ORD9:37 pmChicago O'Hare Intl

Aug 10

ORD8:30 pmChicago O'Hare Intl

2h 07m

BWI11:37 pmBaltimore/Washington

$243

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

Oct 14

BWI12:15 pmBaltimore/Washington

5h 22m

1 stop

ORD4:37 pmChicago O'Hare Intl

Oct 15

ORD5:45 pmChicago O'Hare Intl

4h 10m

1 stop

BWI10:55 pmBaltimore/Washington

$234

Delta

Aug 1

BWI6:50 pmBaltimore/Washington

6h 03m

1 stop

ORD11:53 pmChicago O'Hare Intl

Aug 5

ORD5:30 amChicago O'Hare Intl

6h 35m

1 stop

BWI1:05 pmBaltimore/Washington

$245

Delta

Jul 23

BWI12:33 pmBaltimore/Washington

6h 56m

1 stop

ORD6:29 pmChicago O'Hare Intl

Jul 25

ORD5:18 pmChicago O'Hare Intl

5h 00m

1 stop

BWI11:18 pmBaltimore/Washington

$263

momondo Fare Finder

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

Sun 9/27

12:02 pm-1:26 pm

Nonstop2h 24m

Chicago O'Hare Intl

Tue 9/29

2:03 pm-8:29 am

1 stop17h 26m

$232

BaltimoreChicago

BWI - ORD

BWIORD

Baltimore/Washington

Tue 7/21

8:36 am-7:53 pm

1 stop12h 17m

Chicago O'Hare Intl

Wed 7/22

7:05 am-3:34 pm

1 stop7h 29m

$233

BaltimoreChicago

BWI - ORD

BWIORD

Baltimore/Washington

Sat 8/8

2:18 pm-8:55 pm

1 stop7h 37m

Chicago O'Hare Intl

Tue 8/11

8:05 am-3:46 pm

1 stop6h 41m

$234

BaltimoreChicago

BWI - ORD

BWIORD

Baltimore/Washington

Wed 7/8

8:36 am-7:53 pm

1 stop12h 17m

Chicago O'Hare Intl

Wed 7/15

7:05 am-6:33 pm

1 stop10h 28m

$235

BaltimoreChicago

BWI - ORD

BWIORD

Baltimore/Washington

Tue 7/14

8:36 am-7:53 pm

1 stop12h 17m

Chicago O'Hare Intl

Wed 7/15

7:05 am-3:34 pm

1 stop7h 29m

$236

BaltimoreChicago

BWI - ORD

BWIORD

Baltimore/Washington

Tue 7/14

9:37 pm-7:53 am

1 stop11h 16m

Chicago O'Hare Intl

Wed 7/15

1:50 pm-11:17 pm

1 stop8h 27m

$237

Quickest round-trip

BaltimoreChicago

BWI - ORD

BWIORD

Baltimore/Washington

Sat 8/1

6:15 am-7:30 am

Nonstop2h 15m

Chicago O'Hare Intl

Thu 8/6

8:13 pm-11:19 pm

Nonstop2h 06m

$238

BaltimoreChicago

BWI - ORD

BWIORD

Baltimore/Washington

Tue 7/21

1:55 pm-5:39 pm

1 stop4h 44m

Chicago O'Hare Intl

Tue 7/28

6:51 am-9:58 am

Nonstop2h 07m

$239

BaltimoreChicago

BWI - ORD

BWIORD

Baltimore/Washington

Fri 9/11

12:02 pm-1:26 pm

Nonstop2h 24m

Chicago O'Hare Intl

Sun 9/13

8:00 am-11:07 am

Nonstop2h 07m

$240

BaltimoreChicago

BWI - ORD

BWIORD

Baltimore/Washington

Thu 9/3

9:32 pm-7:53 am

1 stop11h 21m

Chicago O'Hare Intl

Thu 9/10

8:00 am-11:07 am

Nonstop2h 07m

$241

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

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

Prices

Airlines

Other information

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 $233.

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 $406. 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 $560.

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 $415 when looking at flights departing in the evening. Try not to purchase tickets in the afternoon because they tend to be around $459. 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 $278 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 $212 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 June 2026, prices for Baltimore to Chicago O'Hare Intl Airport flights are approximately 13% 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	$220
Fastest flight time	2h 02m
Direct flights	Every day

The best one-way flight to Chicago O'Hare Intl Airport from Baltimore in the past 72 hours is $220. The best round-trip flight deal from Baltimore to Chicago O'Hare Intl Airport found on momondo in the last 72 hours is $370.

The fastest flight from Baltimore to Chicago O'Hare Intl Airport takes 2h 02m

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 02m.
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?
As of June 2026, there are 4 operators available to choose from 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?
Based on momondo bookings for this flight route, the most popular plane model on flight routes from Baltimore to Chicago O'Hare Intl Airport is Boeing 737 MAX 8 (14.00% of total bookings). The next most popular plane models are Boeing 737-800 (12.12%), Boeing 737-900 (11.12%), and Embraer 175 (9.70%).
What is the most popular airline from Baltimore to Chicago O'Hare Intl Airport?
momondo data reveals that the most frequently booked airline on the route from Baltimore to Chicago O'Hare Intl Airport is United Airlines, representing 46% of all bookings. The subsequent popular airlines are American Airlines at 25%, Frontier at 25%, and Southwest at 3%.

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
Frontier	PriceFrom $57	Free Cancellation	Rating 5.6 2,876 reviews	Search Frontier flights
Southwest	PriceFrom $117	Free Cancellation	Rating 7.9 4,244 reviews	Search Southwest flights
United Airlines	PriceFrom $154	Free Cancellation	Rating 7.4 9,868 reviews	Search United Airlines flights
American Airlines	PriceFrom $158	Free Cancellation	Rating 7.1 11,723 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 20 flights/week on average for this route. A good United Airlines flight deal for Baltimore to Chicago O'Hare Intl Airport starts from $154 round-trip, up to an average price of $329. 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 11,723 reviews) operates around 21 flights from Baltimore to Chicago O'Hare Intl Airport in any given week. The average American Airlines airfare for this route is around $306, 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.

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Rosemont

Naperville

Orland Park

Oak Brook

New Buffalo

Joliet

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Hammond

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Janesville

Evanston

Elgin

South Holland

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.

An easier way to manage your Chicago O'Hare Intl Airport trip

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Cheap flights from Baltimore to Chicago from $99

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 7/14. 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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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

Delta flights from Baltimore to Chicago O'Hare Intl Airport

Our best Delta deals on Baltimore to Chicago O'Hare Intl Airport flight tickets

momondo Fare Finder

Use the filters below to find and compare flights from Baltimore to Chicago O'Hare Intl Airport that are best for you.

See travel insights to Chicago from

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

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?

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

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

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

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

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

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

What is the cheapest airline that flies from Baltimore/Washington to Chicago O'Hare Intl?

What airlines fly to Chicago O'Hare Intl Airport?

How many flights depart from Baltimore to Chicago O'Hare Intl Airport on average per day?

How many flights depart from Baltimore to Chicago O'Hare Intl Airport on average per week?

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

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

Fastest flight time

Direct flights

Frequently asked questions about flying 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

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

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

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An easier way to manage your Chicago O'Hare Intl Airport trip

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According to popular flight searches on momondo this year

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List of cabin classes available on flights landing in Chicago. Availability may vary depending on flight origin and airline.

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