How many flights depart from Baltimore to Illinois on average per week?

As of March 2026, 112 flights take off from Baltimore and land in Illinois each week. The most common flight departure day for this route is Sun, with 29% of weekly flights taking off on this day.

What airlines fly to Illinois?

United Airlines, American Airlines and Frontier are the top three most popular airlines that fly to Illinois from Baltimore according to our data. United Airlines is the first choice among our users, with 46% of people opting to fly with this airline when traveling to Illinois. Keep in mind that there are 6 different airlines that fly to Illinois on a routine basis, so you have a few additional options to choose from.

What is the cheapest airline that flies from Baltimore/Washington to Illinois?

Southwest, United Airlines, and Delta are the most popular carriers operating from Baltimore/Washington to Illinois

How many flights depart from Baltimore to Illinois on average per day?

As of March 2026, there are 16 flights per day flying from Baltimore to Illinois. The most common time of day flights depart is 6:00AM, with 48% of flights taking off at noon.

When did momondo last update prices for flights from Baltimore/Washington Airport to Illinois?

Prices for flights from Baltimore/Washington Airport to Illinois are refreshed on a daily basis.

How many operators does momondo search for flights from Baltimore/Washington Airport to Illinois?

As of March 2026, there are 6 operators available to choose from for flights from Baltimore/Washington Airport to Illinois.

How old do you have to be to fly from Baltimore/Washington Airport to Illinois?

The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Baltimore/Washington Airport to Illinois.

What documentation or ID do you need to fly to Illinois?

The travel and health documents required for your trip to Illinois can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Illinois. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

$70 Cheap Flights from Baltimore to Illinois in 2026

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Find the cheapest flights from Baltimore to Illinois

Round-trip

One-way

Last minute

Direct

Cheap round-trip flights

Enter your travel dates to find the best prices.

4:25 pm - 5:51 pm

BWI

ORD

2h 26mnonstop

12:25 pm - 3:30 pm

ORD

BWI

2h 05mnonstop

$119Frontier

Thu, May 7 - Mon, May 11

5:09 pm - 6:35 pm

BWI

ORD

2h 26mnonstop

8:00 am - 11:06 am

ORD

BWI

2h 06mnonstop

$120Frontier

Thu, Apr 2 - Wed, Apr 8

9:43 pm - 9:47 am

BWI

RFD

13h 04m

1 stop

7:09 pm - 11:31 am

RFD

BWI

15h 22m

1 stop

$201Multiple Airlines

Sat, May 9 - Mon, May 11

6:55 pm - 10:57 pm

BWI

PIA

5h 02m

1 stop

8:05 am - 2:02 pm

PIA

BWI

4h 57m

1 stop

$251United Airlines

Wed, Apr 15 - Wed, Apr 22

8:09 pm - 11:54 pm

BWI

MLI

4h 45m

1 stop

12:51 pm - 7:39 pm

MLI

BWI

5h 48m

1 stop

$251American Airlines

Wed, Apr 15 - Wed, Apr 22

6:00 am - 10:02 am

BWI

PIA

5h 02m

1 stop

2:50 pm - 9:23 pm

PIA

BWI

5h 33m

1 stop

$260United Airlines

Thu, Apr 16 - Tue, Apr 21

5:39 am - 12:21 pm

BWI

MLI

7h 42m

1 stop

5:15 am - 11:11 am

MLI

BWI

4h 56m

1 stop

$260American Airlines

Thu, Apr 16 - Tue, Apr 21

10:52 am - 4:32 pm

BWI

MLI

6h 40m

1 stop

5:15 pm - 12:53 am

MLI

BWI

6h 38m

1 stop

$265Delta

Tue, Mar 17 - Tue, Mar 24

9:18 am - 7:00 pm

BWI

RFD

10h 42m

1 stop

7:50 pm - 8:23 am

RFD

BWI

11h 33m

1 stop

$287Multiple Airlines

Fri, Jul 10 - Mon, Jul 13

6:00 am - 10:20 am

BWI

MLI

5h 20m

1 stop

11:00 am - 5:24 pm

MLI

BWI

5h 24m

1 stop

$294Delta

Sat, May 23 - Tue, May 26

Frontier flights from Baltimore to Illinois

Our best Frontier deals on Baltimore to Illinois flight tickets

Frontier

May 7

BWI4:25 pmBaltimore/Washington

2h 26m

ORD5:51 pmChicago O'Hare Intl

May 11

ORD12:25 pmChicago O'Hare Intl

2h 05m

BWI3:30 pmBaltimore/Washington

$119

Frontier

Apr 2

BWI5:09 pmBaltimore/Washington

2h 26m

ORD6:35 pmChicago O'Hare Intl

Apr 8

ORD8:00 amChicago O'Hare Intl

2h 06m

BWI11:06 amBaltimore/Washington

$120

Frontier

Apr 16

BWI4:42 pmBaltimore/Washington

2h 26m

ORD6:08 pmChicago O'Hare Intl

Apr 20

ORD12:20 pmChicago O'Hare Intl

2h 05m

BWI3:25 pmBaltimore/Washington

$122

Spirit Airlines flights from Baltimore to Illinois

Our best Spirit Airlines deals on Baltimore to Illinois flight tickets

Spirit Airlines

Mar 9

BWI10:06 amBaltimore/Washington

10h 05m

1 stop

ORD7:11 pmChicago O'Hare Intl

Mar 10

ORD5:15 amChicago O'Hare Intl

11h 31m

1 stop

BWI5:46 pmBaltimore/Washington

$162

Spirit Airlines

Mar 2

BWI12:30 pmBaltimore/Washington

12h 17m

1 stop

ORD11:47 pmChicago O'Hare Intl

Mar 3

ORD12:44 pmChicago O'Hare Intl

9h 09m

1 stop

BWI10:53 pmBaltimore/Washington

$163

Spirit Airlines

Mar 5

BWI11:30 amBaltimore/Washington

7h 16m

1 stop

ORD5:46 pmChicago O'Hare Intl

Mar 11

ORD10:44 amChicago O'Hare Intl

11h 09m

1 stop

BWI10:53 pmBaltimore/Washington

$169

Fly from

Fly to

Route

Depart

Return

Price

BaltimoreChicago

BWI - ORD

BWIORD

Baltimore/Washington

Thu 5/7

4:25 pm-5:51 pm

Nonstop2h 26m

Chicago O'Hare Intl

Mon 5/11

12:25 pm-3:30 pm

Nonstop2h 05m

$119

BaltimoreChicago

BWI - ORD

BWIORD

Baltimore/Washington

Thu 4/2

5:09 pm-6:35 pm

Nonstop2h 26m

Chicago O'Hare Intl

Wed 4/8

8:00 am-11:06 am

Nonstop2h 06m

$120

BaltimoreChicago

BWI - RFD

BWIRFD

Baltimore/Washington

Sat 5/9

9:43 pm-9:47 am

1 stop13h 04m

Chicago Greater Rockford

Mon 5/11

7:09 pm-11:31 am

1 stop15h 22m

$201

BaltimorePeoria

BWI - PIA

BWIPIA

Baltimore/Washington

Wed 4/15

6:55 pm-10:57 pm

1 stop5h 02m

Greater Peoria

Wed 4/22

8:05 am-2:02 pm

1 stop4h 57m

$251

BaltimoreMoline

BWI - MLI

BWIMLI

Baltimore/Washington

Wed 4/15

8:09 pm-11:54 pm

1 stop4h 45m

Moline Quad-City

Wed 4/22

12:51 pm-7:39 pm

1 stop5h 48m

$251

BaltimorePeoria

BWI - PIA

BWIPIA

Baltimore/Washington

Thu 4/16

6:00 am-10:02 am

1 stop5h 02m

Greater Peoria

Tue 4/21

2:50 pm-9:23 pm

1 stop5h 33m

$260

BaltimoreMoline

BWI - MLI

BWIMLI

Baltimore/Washington

Thu 4/16

5:39 am-12:21 pm

1 stop7h 42m

Moline Quad-City

Tue 4/21

5:15 am-11:11 am

1 stop4h 56m

$260

BaltimoreMoline

BWI - MLI

BWIMLI

Baltimore/Washington

Tue 3/17

10:52 am-4:32 pm

1 stop6h 40m

Moline Quad-City

Tue 3/24

5:15 pm-12:53 am

1 stop6h 38m

$265

BaltimoreChicago

BWI - RFD

BWIRFD

Baltimore/Washington

Fri 7/10

9:18 am-7:00 pm

1 stop10h 42m

Chicago Greater Rockford

Mon 7/13

7:50 pm-8:23 am

1 stop11h 33m

$287

BaltimoreMoline

BWI - MLI

BWIMLI

Baltimore/Washington

Sat 5/23

6:00 am-10:20 am

1 stop5h 20m

Moline Quad-City

Tue 5/26

11:00 am-5:24 pm

1 stop5h 24m

$294

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 Illinois

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 cheapest month to fly to Illinois?

The cheapest month to fly to Illinois from Baltimore is in September. Flight prices, which tend to average around $161, are often lower during this time because this is during the off-season. If you aren’t able to travel to Illinois during the month of September, then flying in January is also cheap. Prices for this month can be found on momondo for an average of $171.

What is the cheapest day to depart on your flight to Illinois?

The cheapest day to depart from Baltimore to Illinois is on a Friday when prices can be found for as low as $283. Flights from Baltimore to Illinois on a Sunday will generally be more expensive and average around $469. Keep in mind that these prices on both days could fluctuate depending on the season and the demand.

What is the cheapest time of day to depart on your flight to Illinois?

Our most recent data shows that the best time of day to fly to Illinois is in the evening. Flights from Baltimore to Illinois during this time can be as low as $242. Flights in the morning are often more expensive with an average ticket price of $415.

What is the cheapest Baltimore/Washington to Illinois flight route?

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

How far in advance should I book a flight to Illinois?

You are more likely to see cheaper flights to Illinois from Baltimore when booking weeks ahead of your departure date. In general, you can expect to find flights to Illinois for around $275 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Illinois from Baltimore for as low as $184 on momondo.

What cabin class options are available on Baltimore/Washington to Illinois flights?

There are 4 cabin classes available to choose from on Baltimore/Washington to Illinois flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Can stopping save me money on Baltimore to Illinois flights?

No. A direct flight is the cheapest option for a flight between Baltimore to Illinois.

Cheap Baltimore to Illinois flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Baltimore to Illinois

Best Price Found	$146
Fastest flight time	2h 00m
Direct flights	Every day
Airports in Illinois	98 airports

The best one-way flight to Illinois from Baltimore in the past 72 hours is $146. The best round-trip flight deal from Baltimore to Illinois found on momondo in the last 72 hours is $254.

The fastest flight from Baltimore to Illinois takes 2h 00m

Direct flights go from Baltimore to Illinois every day.

There are 98 airports in Illinois. From Baltimore there are direct flights to Chicago O'Hare Intl (ORD), Chicago Midway (MDW).

Search flight deals

When did momondo last update prices for flights from Baltimore/Washington Airport to Illinois?
Prices for flights from Baltimore/Washington Airport to Illinois are refreshed on a daily basis.
How many operators does momondo search for flights from Baltimore/Washington Airport to Illinois?
As of March 2026, there are 6 operators available to choose from for flights from Baltimore/Washington Airport to Illinois.
How old do you have to be to fly from Baltimore/Washington Airport to Illinois?
The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Baltimore/Washington Airport to Illinois.
What documentation or ID do you need to fly to Illinois?
The travel and health documents required for your trip to Illinois can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Illinois. We always recommend checking with your airline or a trusted third party such as IATA to get advice.
What is the most popular plane model from Baltimore to Illinois?
Based on momondo bookings for flights between Baltimore and Illinois, the leading plane model is Boeing 737 MAX 8, making up 11.95% of the total bookings. Other popular models include Boeing 737-900 with 10.50%, Embraer 175 with 9.99%, and Embraer 170 with 8.77%.

Best airlines flying from Baltimore to Illinois

Compare and see reviews for airlines that fly from Baltimore to Illinois with momondo

Airline	Rating	Free Cancellation	Price
Spirit Airlines	PriceFrom $41	Free Cancellation	Rating 6.3 8,487 reviews	Search Spirit Airlines flights
Frontier	PriceFrom $57	Free Cancellation	Rating 5.7 3,040 reviews	Search Frontier flights
United Airlines	PriceFrom $131	Free Cancellation	Rating 7.4 9,376 reviews	Search United Airlines flights
Southwest	PriceFrom $139	Free Cancellation	Rating 8.0 4,306 reviews	Search Southwest flights
American Airlines	PriceFrom $158	Free Cancellation	Rating 7.1 11,369 reviews	Search American Airlines flights
Delta	PriceFrom $239	Free Cancellation	Rating 7.9 8,237 reviews	Search Delta flights

Why use momondo?

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

momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights from Baltimore to Illinois. Millions of users trust and use momondo every year so you are in good hands.

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

momondo does allow users to show only those flights to Illinois from Baltimore which offer a flexible booking policy as well as other useful filters and features.

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

Once all potential Baltimore to Illinois 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 Illinois right now. Can momondo alert me if prices change?

Price alerts on flights to Illinois from Baltimore are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.