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

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

What airlines fly to Baltimore?

United Airlines, American Airlines and Frontier are the top three most popular airlines that fly to Baltimore from Illinois according to our data. United Airlines is the first choice among our users, with 48% of people opting to fly with this airline when traveling to Baltimore. Keep in mind that there are 7 different airlines that fly to Baltimore on a routine basis, so you have a few additional options to choose from.

How long does it take to fly to Baltimore?

On average, it takes 2h 37m to fly from Illinois to Baltimore if you fly out of Chicago (the most popular airport in Illinois) and into Washington, D.C. Dulles Intl Airport (the most popular airport in Baltimore). If you’re flying out of Peoria and into Washington, D.C. Dulles Intl Airport, then the flight time is around 4h 14m.

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

The number of flights available between Illinois and Baltimore is 27 per day as of March 2026. The most frequent departure time is 6:00PM, with 48% of daily flights leaving in the evening.

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

As of March 2026, 194 flights take off from Illinois and land in Baltimore each week. The most common flight departure day for this route is Fri, with 18% of weekly flights taking off on this day.

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

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

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

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

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

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 Illinois to Baltimore/Washington Airport.

What documentation or ID do you need to fly to Baltimore/Washington Airport?

The travel and health documents you'll need for your trip to Baltimore/Washington Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Baltimore/Washington Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

$74 Cheap Flights from Illinois to Baltimore in 2026

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Find the cheapest flights from Illinois to Washington, D.C.

Round-trip

One-way

Last minute

Direct

Cheap round-trip flights

Enter your travel dates to find the best prices.

12:20 pm - 3:25 pm

ORD

BWI

2h 05mnonstop

3:25 pm - 11:58 pm

BWI

ORD

9h 33m

1 stop

$136Frontier

Mon, Apr 20 - Mon, Apr 27

8:00 am - 11:06 am

ORD

BWI

2h 06mnonstop

4:05 pm - 11:17 pm

BWI

ORD

8h 12m

1 stop

$137Multiple Airlines

Wed, Apr 8 - Wed, Apr 8

6:08 pm - 12:44 am

ORD

BWI

5h 36m

1 stop

12:17 pm - 5:00 pm

BWI

ORD

5h 43m

1 stop

$139Frontier

Tue, Apr 14 - Wed, Apr 15

7:53 am - 7:00 pm

EVV

BWI

10h 07m

1 stop

9:38 am - 7:06 pm

BWI

EVV

10h 28m

1 stop

$292Multiple Airlines

Fri, Apr 17 - Mon, Apr 20

2:50 pm - 9:02 pm

PIA

BWI

5h 12m

1 stop

6:15 am - 10:04 am

BWI

PIA

4h 49m

1 stop

$310United Airlines

Fri, May 1 - Sat, May 9

1:55 pm - 9:23 pm

MLI

BWI

6h 28m

1 stop

6:00 am - 12:27 pm

BWI

MLI

7h 27m

1 stop

$310United Airlines

Wed, Apr 15 - Sun, Apr 19

3:47 pm - 11:33 pm

CMI

BWI

6h 46m

1 stop

5:00 am - 9:22 am

BWI

CMI

5h 22m

1 stop

$328American Airlines

Wed, Apr 1 - Sun, Apr 5

1:22 pm - 7:22 pm

PIA

BWI

5h 00m

1 stop

8:09 pm - 11:33 pm

BWI

PIA

4h 24m

1 stop

$329American Airlines

Thu, Apr 23 - Mon, Apr 27

12:00 pm - 6:50 pm

BMI

BWI

5h 50m

1 stop

6:00 am - 11:11 am

BWI

BMI

6h 11m

1 stop

$329Delta

Wed, Jun 24 - Sun, Jun 28

11:00 am - 5:24 pm

MLI

BWI

5h 24m

1 stop

6:00 am - 10:26 am

BWI

MLI

5h 26m

1 stop

$329Delta

Thu, Jun 4 - Sun, Jun 7

United Airlines flights from Illinois to Baltimore

Our best United Airlines deals on Illinois to Baltimore flight tickets

United Airlines

May 1

PIA2:50 pmGreater Peoria

5h 12m

1 stop

BWI9:02 pmBaltimore/Washington

May 9

BWI6:15 amBaltimore/Washington

4h 49m

1 stop

PIA10:04 amGreater Peoria

$310

United Airlines

May 21

MLI6:34 pmMoline Quad-City

4h 59m

1 stop

BWI12:33 amBaltimore/Washington

May 24

BWI5:32 pmBaltimore/Washington

4h 32m

1 stop

MLI9:04 pmMoline Quad-City

$329

United Airlines

Apr 2

PIA8:05 amGreater Peoria

4h 57m

1 stop

BWI2:02 pmBaltimore/Washington

Apr 6

BWI6:55 pmBaltimore/Washington

5h 02m

1 stop

PIA10:57 pmGreater Peoria

$339

Frontier flights from Illinois to Baltimore

Our best Frontier deals on Illinois to Baltimore flight tickets

Frontier

Apr 20

ORD12:20 pmChicago O'Hare Intl

2h 05m

BWI3:25 pmBaltimore/Washington

Apr 27

BWI3:25 pmBaltimore/Washington

9h 33m

1 stop

ORD11:58 pmChicago O'Hare Intl

$136

Frontier

Apr 16

ORD12:42 pmChicago O'Hare Intl

2h 05m

BWI3:47 pmBaltimore/Washington

Apr 20

BWI9:21 pmBaltimore/Washington

24h 56m

1 stop

ORD9:17 pmChicago O'Hare Intl

$139

Frontier

Apr 21

MDW2:15 pmChicago Midway

9h 29m

1 stop

BWI12:44 amBaltimore/Washington

Apr 25

BWI5:53 pmBaltimore/Washington

5h 21m

1 stop

MDW10:14 pmChicago Midway

$140

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

ChicagoBaltimore

ORD - BWI

ORDBWI

Chicago O'Hare Intl

Mon 4/20

12:20 pm-3:25 pm

Nonstop2h 05m

Baltimore/Washington

Mon 4/27

3:25 pm-11:58 pm

1 stop9h 33m

$136

ChicagoBaltimore

ORD - BWI

ORDBWI

Chicago O'Hare Intl

Wed 4/8

8:00 am-11:06 am

Nonstop2h 06m

Baltimore/Washington

Wed 4/8

4:05 pm-11:17 pm

1 stop8h 12m

$137

ChicagoBaltimore

ORD - BWI

ORDBWI

Chicago O'Hare Intl

Tue 4/14

6:08 pm-12:44 am

1 stop5h 36m

Baltimore/Washington

Wed 4/15

12:17 pm-5:00 pm

1 stop5h 43m

$139

EvansvilleBaltimore

EVV - BWI

EVVBWI

Evansville Dress Regional

Fri 4/17

7:53 am-7:00 pm

1 stop10h 07m

Baltimore/Washington

Mon 4/20

9:38 am-7:06 pm

1 stop10h 28m

$292

PeoriaBaltimore

PIA - BWI

PIABWI

Greater Peoria

Fri 5/1

2:50 pm-9:02 pm

1 stop5h 12m

Baltimore/Washington

Sat 5/9

6:15 am-10:04 am

1 stop4h 49m

$310

MolineBaltimore

MLI - BWI

MLIBWI

Moline Quad-City

Wed 4/15

1:55 pm-9:23 pm

1 stop6h 28m

Baltimore/Washington

Sun 4/19

6:00 am-12:27 pm

1 stop7h 27m

$310

ChampaignBaltimore

CMI - BWI

CMIBWI

Champaign University-Willard

Wed 4/1

3:47 pm-11:33 pm

1 stop6h 46m

Baltimore/Washington

Sun 4/5

5:00 am-9:22 am

1 stop5h 22m

$328

Quickest round-trip

PeoriaBaltimore

PIA - BWI

PIABWI

Greater Peoria

Thu 4/23

1:22 pm-7:22 pm

1 stop5h 00m

Baltimore/Washington

Mon 4/27

8:09 pm-11:33 pm

1 stop4h 24m

$329

BloomingtonBaltimore

BMI - BWI

BMIBWI

Bloomington-Normal

Wed 6/24

12:00 pm-6:50 pm

1 stop5h 50m

Baltimore/Washington

Sun 6/28

6:00 am-11:11 am

1 stop6h 11m

$329

MolineBaltimore

MLI - BWI

MLIBWI

Moline Quad-City

Thu 6/4

11:00 am-5:24 pm

1 stop5h 24m

Baltimore/Washington

Sun 6/7

6:00 am-10:26 am

1 stop5h 26m

$329

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 Illinois to Baltimore

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 Baltimore?

If you’re not able to fly to Baltimore in September, then August is your next best option. Flight prices from Illinois to Baltimore during August average around $187.

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

The cheapest day to depart from Illinois to Baltimore is on a Friday. Travelers who choose to depart for Baltimore on a Friday will often find tickets for as low as $203. If your travel schedule is flexible, try to avoid departing on a Saturday because tickets tend to average around $270. These prices are subject to change though, so be sure to set up a Price Alert for flights to Baltimore.

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

Flying to Baltimore from Illinois at noon is the least expensive time of day to depart. momondo users have found prices as low as $215 when looking at flights departing at noon. Flights in the evening are often more expensive with an average ticket price of $280.

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

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

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

You are more likely to see cheaper flights to Baltimore from Illinois when booking weeks ahead of your departure date. In general, you can expect to find flights to Baltimore for around $230 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Baltimore from Illinois for as low as $154 on momondo.

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

There are 4 cabin classes available to choose from on Illinois to Baltimore/Washington 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 Illinois to Baltimore flights?

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

Cheap Illinois to Baltimore flight deals and tips

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

Best Price Found	$140
Fastest flight time	1h 45m
Direct flights	Every day
Airports in Baltimore	1 airport

The best one-way flight to Baltimore from Illinois in the past 72 hours is $140. The best round-trip flight deal from Illinois to Baltimore found on momondo in the last 72 hours is $204.

The fastest flight from Illinois to Baltimore takes 1h 45m

Direct flights go from Illinois to Baltimore every day.

There is 1 airport in Baltimore. From Illinois there are direct flights to Baltimore/Washington (BWI).

Search flight deals

When did momondo last update prices for flights from Illinois to Baltimore/Washington Airport?
Prices for flights from Illinois to Baltimore/Washington Airport are refreshed on a daily basis.
How many operators does momondo search for flights from Illinois to Baltimore/Washington Airport?
As of March 2026, there are 6 operators available to choose from for flights from Illinois to Baltimore/Washington Airport.
How old do you have to be to fly from Illinois to Baltimore/Washington Airport?
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 Illinois to Baltimore/Washington Airport.
What documentation or ID do you need to fly to Baltimore/Washington Airport?
The travel and health documents you'll need for your trip to Baltimore/Washington Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Baltimore/Washington Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.
What is the most popular plane model from Illinois to Baltimore?
Based on momondo bookings for flights between Illinois and Baltimore, the leading plane model is Embraer 175, making up 11.52% of the total bookings. Other popular models include Boeing 737-900 with 10.56%, Airbus A319 with 9.69%, and Boeing 737-800 with 9.43%.

Best airlines flying from Illinois to Baltimore

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

Airline	Rating	Free Cancellation	Price
Spirit Airlines	PriceFrom $42	Free Cancellation	Rating 6.3 8,532 reviews	Search Spirit Airlines flights
Frontier	PriceFrom $57	Free Cancellation	Rating 5.7 3,019 reviews	Search Frontier flights
United Airlines	PriceFrom $114	Free Cancellation	Rating 7.4 9,455 reviews	Search United Airlines flights
American Airlines	PriceFrom $152	Free Cancellation	Rating 7.1 11,486 reviews	Search American Airlines flights
Southwest	PriceFrom $157	Free Cancellation	Rating 8.0 4,324 reviews	Search Southwest flights
Delta	PriceFrom $183	Free Cancellation	Rating 7.9 8,314 reviews	Search Delta flights

Why use momondo?

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

We help find the flight that best suits your needs, momondo compares prices from hundreds of airlines and travel agents and helps you filter them to find the best flight from Illinois to Baltimore for you.

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

Yes. All flights to Baltimore from Illinois on momondo can be compared and filtered by various policies on offer, including flexible booking.

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

Once you have performed a search for Illinois to Baltimore flights, momondo helps you find the right one by offering useful filters to narrow down your flight selection. Flights can be filtered by multiple factors such as airline, airport and price; but also by other criteria like aircraft type and payment method.

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

Price alerts on flights to Baltimore from Illinois 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.

An easier way to manage your Baltimore trip

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Cheap flights from Illinois to Washington, D.C. from $74

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Illinois to Washington, D.C. departing on 5/19. 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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United Airlines flights from Illinois to Baltimore

Our best United Airlines deals on Illinois to Baltimore flight tickets

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Our best Frontier deals on Illinois to Baltimore flight tickets

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How to get the cheapest flight ticket from Illinois to Baltimore

What is the cheapest month to fly to Baltimore?

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

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

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

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

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

Can stopping save me money on Illinois to Baltimore flights?

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

What airlines fly to Baltimore?

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

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

How long does it take to fly to Baltimore?

Cheap Illinois to Baltimore flight deals and tips

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

Best Price Found

Fastest flight time

Direct flights

Airports in Baltimore

Best airlines flying from Illinois to Baltimore

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

Why use momondo?

An easier way to manage your Baltimore trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.

Find better results for your trip to the United States

Airports servicing Maryland

Fly your favorite airline to Washington, D.C.

Airlines are sorted and displayed according to clicks in the past 7 days on momondo

Cabin classes currently available on flights to Washington, D.C.

List of cabin classes available on flights landing in Washington, D.C.. Availability may vary depending on flight origin and airline.

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Popular flights according to clicks in the last 7 days on momondo

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