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Cheap flights from Baltimore to Chicago from $61

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 12/15. 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
0 bags

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Cheap round-trip flights

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Frontier Logo
4:09 pm - 5:25 pmBWI-ORD
2h 16mnonstop
Frontier Logo
12:09 pm - 3:12 pmORD-BWI
2h 03mnonstop
$109Frontier
Find Deal
Sun, Nov 9 - Mon, Nov 10
Frontier Logo
9:12 am - 10:36 amBWI-ORD
2h 24mnonstop
Frontier Logo
5:15 am - 8:17 amORD-BWI
2h 02mnonstop
$110Frontier
Find Deal
Sun, Dec 7 - Fri, Dec 12
Frontier Logo
8:37 am - 1:16 pmBWI-ORD
29h 39m1 stop
Frontier Logo
5:11 am - 8:18 amORD-BWI
2h 07mnonstop
$111Frontier
Find Deal
Thu, Dec 4 - Sun, Dec 7
Multiple Airlines Logo
4:55 pm - 11:29 pmBWI-ORD
7h 34m1 stop
Multiple Airlines Logo
12:00 pm - 3:03 pmORD-BWI
2h 03mnonstop
$112Multiple Airlines
Find Deal
Sat, Nov 8 - Thu, Nov 13
Frontier Logo
3:09 pm - 4:25 pmBWI-ORD
2h 16mnonstop
Frontier Logo
12:11 pm - 3:14 pmORD-BWI
2h 03mnonstop
$113Frontier
Find Deal
Thu, Oct 30 - Mon, Nov 3
Multiple Airlines Logo
4:52 pm - 11:06 pmBWI-ORD
7h 14m1 stop
Multiple Airlines Logo
12:00 pm - 3:03 pmORD-BWI
2h 03mnonstop
$114Multiple Airlines
Find Deal
Tue, Nov 4 - Thu, Nov 6
Frontier Logo
3:09 pm - 4:25 pmBWI-ORD
2h 16mnonstop
Frontier Logo
6:30 pm - 6:29 pmORD-BWI
22h 59m1 stop
$115Frontier
Find Deal
Thu, Oct 30 - Mon, Nov 10
Spirit Airlines Logo
9:36 pm - 9:47 amBWI-ORD
13h 11m1 stop
Spirit Airlines Logo
5:10 am - 3:47 pmORD-BWI
9h 37m1 stop
$129Spirit Airlines
Find Deal
Tue, Nov 11 - Tue, Nov 18
Spirit Airlines Logo
9:36 pm - 9:47 amBWI-ORD
13h 11m1 stop
Spirit Airlines Logo
10:52 am - 11:07 pmORD-BWI
11h 15m1 stop
$130Spirit Airlines
Find Deal
Mon, Nov 10 - Tue, Nov 11
United Airlines Logo
6:15 am - 7:32 amBWI-ORD
2h 17mnonstop
United Airlines Logo
6:25 pm - 9:25 pmORD-BWI
2h 00mnonstop
$139United Airlines
Find Deal
Sat, Nov 15 - Sat, Nov 15

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

Our best Spirit Airlines deals on Baltimore to Chicago O'Hare Intl Airport flight tickets
Spirit Airlines
Nov 11
BWI9:36 pmBaltimore/Washington
13h 11m
1 stop
ORD9:47 amChicago O'Hare Intl
Nov 18
ORD5:10 amChicago O'Hare Intl
9h 37m
1 stop
BWI3:47 pmBaltimore/Washington
$129
Find similar
Spirit Airlines
Nov 10
BWI9:36 pmBaltimore/Washington
13h 11m
1 stop
ORD9:47 amChicago O'Hare Intl
Nov 11
ORD10:52 amChicago O'Hare Intl
11h 15m
1 stop
BWI11:07 pmBaltimore/Washington
$130
Find similar
Spirit Airlines
Nov 3
BWI9:36 pmBaltimore/Washington
13h 11m
1 stop
ORD9:47 amChicago O'Hare Intl
Nov 4
ORD10:52 amChicago O'Hare Intl
11h 15m
1 stop
BWI11:07 pmBaltimore/Washington
$134
Find similar

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
Nov 9
BWI4:09 pmBaltimore/Washington
2h 16m
ORD5:25 pmChicago O'Hare Intl
Nov 10
ORD12:09 pmChicago O'Hare Intl
2h 03m
BWI3:12 pmBaltimore/Washington
$109
Find similar
Frontier
Dec 7
BWI9:12 amBaltimore/Washington
2h 24m
ORD10:36 amChicago O'Hare Intl
Dec 12
ORD5:15 amChicago O'Hare Intl
2h 02m
BWI8:17 amBaltimore/Washington
$110
Find similar
Frontier
Dec 4
BWI8:37 amBaltimore/Washington
29h 39m
1 stop
ORD1:16 pmChicago O'Hare Intl
Dec 7
ORD5:11 amChicago O'Hare Intl
2h 07m
BWI8:18 amBaltimore/Washington
$111
Find similar

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 October 16, 2025.
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

BaltimoreChicago

BWI - ORD

BWIORD

Baltimore/Washington

Sun 11/9

4:09 pm-5:25 pm

Nonstop2h 16m

Chicago O'Hare Intl

Mon 11/10

12:09 pm-3:12 pm

Nonstop2h 03m

$109

BaltimoreChicago

BWI - ORD

BWIORD

Baltimore/Washington

Sun 12/7

9:12 am-10:36 am

Nonstop2h 24m

Chicago O'Hare Intl

Fri 12/12

5:15 am-8:17 am

Nonstop2h 02m

$110

BaltimoreChicago

BWI - ORD

BWIORD

Baltimore/Washington

Thu 12/4

8:37 am-1:16 pm

1 stop29h 39m

Chicago O'Hare Intl

Sun 12/7

5:11 am-8:18 am

Nonstop2h 07m

$111

BaltimoreChicago

BWI - ORD

BWIORD

Baltimore/Washington

Sat 11/8

4:55 pm-11:29 pm

1 stop7h 34m

Chicago O'Hare Intl

Thu 11/13

12:00 pm-3:03 pm

Nonstop2h 03m

$112

BaltimoreChicago

BWI - ORD

BWIORD

Baltimore/Washington

Thu 10/30

3:09 pm-4:25 pm

Nonstop2h 16m

Chicago O'Hare Intl

Mon 11/3

12:11 pm-3:14 pm

Nonstop2h 03m

$113

BaltimoreChicago

BWI - ORD

BWIORD

Baltimore/Washington

Tue 11/4

4:52 pm-11:06 pm

1 stop7h 14m

Chicago O'Hare Intl

Thu 11/6

12:00 pm-3:03 pm

Nonstop2h 03m

$114

BaltimoreChicago

BWI - ORD

BWIORD

Baltimore/Washington

Thu 10/30

3:09 pm-4:25 pm

Nonstop2h 16m

Chicago O'Hare Intl

Mon 11/10

6:30 pm-6:29 pm

1 stop22h 59m

$115

BaltimoreChicago

BWI - ORD

BWIORD

Baltimore/Washington

Tue 11/11

9:36 pm-9:47 am

1 stop13h 11m

Chicago O'Hare Intl

Tue 11/18

5:10 am-3:47 pm

1 stop9h 37m

$129

BaltimoreChicago

BWI - ORD

BWIORD

Baltimore/Washington

Mon 11/10

9:36 pm-9:47 am

1 stop13h 11m

Chicago O'Hare Intl

Tue 11/11

10:52 am-11:07 pm

1 stop11h 15m

$130

BaltimoreChicago

BWI - ORD

BWIORD

Baltimore/Washington

Sat 11/15

6:15 am-7:32 am

Nonstop2h 17m

Chicago O'Hare Intl

Sat 11/15

6:25 pm-9:25 pm

Nonstop2h 00m

$139

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 cheapest month to fly to Chicago O'Hare Intl Airport?

The month of January is another great option to travel to Chicago O'Hare Intl Airport, with average flight prices from Baltimore averaging around $232.

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 $390. 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 $524.

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 $342 when looking at flights departing in the evening. Try not to purchase tickets in the afternoon because they tend to be around $455. 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 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 $279 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 $220 on momondo.

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

There are 4 cabin classes available to choose from on Baltimore/Washington to Chicago O'Hare Intl 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 October 2025, prices for Baltimore to Chicago O'Hare Intl Airport flights are approximately 41% 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

$123

Fastest flight time

2h 08m

Direct flights

Every day
The best one-way flight to Chicago O'Hare Intl Airport from Baltimore in the past 72 hours is $123. The best round-trip flight deal from Baltimore to Chicago O'Hare Intl Airport found on momondo in the last 72 hours is $222.
The fastest flight from Baltimore to Chicago O'Hare Intl Airport takes 2h 08m
Direct flights go from Baltimore to Chicago O'Hare Intl Airport every day.
Search flight deals

  • 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 16m.

  • 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 $52Free CancellationRating
6.3
8,097 reviews
Search Spirit Airlines flights
FrontierPriceFrom $75Free CancellationRating
5.8
3,137 reviews
Search Frontier flights
SouthwestPriceFrom $157Free CancellationRating
8.0
4,241 reviews
Search Southwest flights
United AirlinesPriceFrom $158Free CancellationRating
7.4
8,982 reviews
Search United Airlines flights
American AirlinesPriceFrom $164Free CancellationRating
7.2
11,043 reviews
Search American Airlines flights

  • Southwest Flights From Baltimore to Chicago O'Hare Intl Airport

    Southwest is one of the most popular airlines flying from Baltimore to Chicago O'Hare Intl Airport, operating 3 flights/week on average for this route. A good Southwest flight deal for Baltimore to Chicago O'Hare Intl Airport starts from $157 round-trip, up to an average price of $287. Our users have rated Southwest at 8.0/10.

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

    United Airlines (7.4/10 from 8,982 reviews) operates around 21 flights from Baltimore to Chicago O'Hare Intl Airport in any given week. The average United Airlines airfare for this route is around $307, 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
South Haven
Schaumburg
Rockford
Merrillville
Gurnee
Naperville
Rosemont
Kenosha
New Buffalo
Joliet
Oak Brook
Racine
Orland Park
Hammond
Tinley Park
Janesville
Elgin
Aurora
Benton Harbor

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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