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$64+ Cheap flights from Illinois to Baltimore (BWI)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 8/17. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — BWI
Jun 17 — Jun 241
Tue 6/17
Tue 6/24
1 adult, Economy
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Cheap flight deals from Illinois to Baltimore

Keep the following information in mind while searching for Illinois to Baltimore flight deals. Data was last updated June 12, 2025.

Round-trip from

$108
(CheapOair)

One-way from

$64
(Kiwi.com)

Popular in

January

Cheapest in

September

Average price

$234
From Illinois to Baltimore/Washington
Search Deals
One-way flight from Illinois to Baltimore/Washington
Search Deals
Highest demand for flights based on searches. 3% potential increase in price ($9 potential increase over avg. RT price).
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Cheapest flight prices on average. 0% potential price decrease ($2 potential savings vs. average RT price).
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Average for round-trip flights in June 2025
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Find flight deals from Illinois to Baltimore

Cheapest flights from Illinois to Baltimore
Explore the most affordable flight options available from Illinois to Baltimore. Find the lowest fares from popular airlines and budget airlines, with prices last updated on June 12, 2025.

This CheapOair deal was found by Cheapflights users on 6/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/92:48 pmMDW - BWI
Nonstop1h 58mFrontier
Mon 7/144:32 pmBWI - MDW
Nonstop2h 04mFrontier
Deal found 6/10$108
This Mytrip deal was found by Cheapflights users on 6/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/314:37 pmORD - BWI
Nonstop1h 54mSpirit Airlines
Sun 8/38:26 pmBWI - ORD
Nonstop2h 23mSpirit Airlines
Deal found 6/10$110
This Cheapflightsfares deal was found by Cheapflights users on 6/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/291:15 pmORD - BWI
Nonstop2h 06mFrontier
Sun 8/315:06 pmBWI - ORD
Nonstop2h 22mFrontier
Deal found 6/12$115
This FlightHub deal was found by Cheapflights users on 6/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/104:37 pmORD - BWI
Nonstop1h 54mMultiple Airlines
Mon 7/1411:36 amBWI - ORD
Nonstop2h 22mMultiple Airlines
Deal found 6/11$126
This Southwest deal was found by Cheapflights users on 6/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/611:45 amMDW - BWI
Nonstop1h 50mSouthwest
Tue 8/121:25 pmBWI - MDW
Nonstop1h 55mSouthwest
Deal found 6/10$139
This United Airlines deal was found by Cheapflights users on 6/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/67:00 amORD - BWI
Nonstop2h 03mUnited Airlines
Wed 8/1310:59 amBWI - ORD
Nonstop2h 15mUnited Airlines
Deal found 6/10$139
This Mytrip deal was found by Cheapflights users on 6/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 7/66:36 pmSTL - BWI
1 stop11h 28mSpirit Airlines
Sat 7/2610:11 pmBWI - STL
1 stop12h 41mSpirit Airlines
Deal found 6/11$140
This Southwest deal was found by Cheapflights users on 6/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/21:50 pmORD - BWI
Nonstop2h 00mSouthwest
Fri 7/411:55 amBWI - ORD
Nonstop2h 10mSouthwest
Deal found 6/10$159
This Delta deal was found by Cheapflights users on 6/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/156:20 pmMDW - BWI
1 stop3h 58mDelta
Sun 7/206:00 amBWI - MDW
1 stop3h 44mDelta
Deal found 6/11$197
This Delta deal was found by Cheapflights users on 6/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/2811:05 amORD - BWI
1 stop5h 31mDelta
Tue 9/26:00 amBWI - ORD
1 stop5h 20mDelta
Deal found 6/9$197
This Southwest deal was found by Cheapflights users on 6/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/196:05 amSTL - BWI
Nonstop2h 00mSouthwest
Wed 12/38:40 pmBWI - STL
Nonstop2h 20mSouthwest
Deal found 6/10$197
This American Airlines deal was found by Cheapflights users on 6/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/24:06 pmPIA - BWI
1 stop5h 10mAmerican Airlines
Sat 7/57:49 pmBWI - PIA
1 stop5h 23mAmerican Airlines
Deal found 6/10$199

Cheapflights Fare Finder

Customize your flight search to find flights from Illinois to Baltimore 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, Cheapflights users made 2,558,603 searches. Data last updated June 12, 2025.
Use the filters below to find and compare flights from Illinois to Baltimore that are best for you.

Fly from

Illinois

Fly to

Baltimore

Route

Depart

Return

Price

ChicagoBaltimore

MDW - BWI

MDWBWI

Chicago Midway

Wed 7/9

2:48 pm-5:46 pm

Nonstop1h 58m

Baltimore/Washington

Mon 7/14

4:32 pm-5:36 pm

Nonstop2h 04m

$108

ChicagoBaltimore

ORD - BWI

ORDBWI

Chicago O'Hare Intl

Thu 7/31

4:37 pm-7:31 pm

Nonstop1h 54m

Baltimore/Washington

Sun 8/3

8:26 pm-9:49 pm

Nonstop2h 23m

$110

ChicagoBaltimore

ORD - BWI

ORDBWI

Chicago O'Hare Intl

Fri 8/29

1:15 pm-4:21 pm

Nonstop2h 06m

Baltimore/Washington

Sun 8/31

5:06 pm-6:28 pm

Nonstop2h 22m

$115

ChicagoBaltimore

ORD - BWI

ORDBWI

Chicago O'Hare Intl

Thu 7/10

4:37 pm-7:31 pm

Nonstop1h 54m

Baltimore/Washington

Mon 7/14

11:36 am-12:58 pm

Nonstop2h 22m

$126

ChicagoBaltimore

MDW - BWI

MDWBWI

Chicago Midway

Wed 8/6

11:45 am-2:35 pm

Nonstop1h 50m

Baltimore/Washington

Tue 8/12

1:25 pm-2:20 pm

Nonstop1h 55m

$139

ChicagoBaltimore

ORD - BWI

ORDBWI

Chicago O'Hare Intl

Wed 8/6

7:00 am-10:03 am

Nonstop2h 03m

Baltimore/Washington

Wed 8/13

10:59 am-12:14 pm

Nonstop2h 15m

$139

St. LouisBaltimore

STL - BWI

STLBWI

Lambert-St Louis

Sun 7/6

6:36 pm-7:04 am

1 stop11h 28m

Baltimore/Washington

Sat 7/26

10:11 pm-9:52 am

1 stop12h 41m

$140

ChicagoBaltimore

ORD - BWI

ORDBWI

Chicago O'Hare Intl

Tue 7/8

1:50 pm-4:50 pm

Nonstop2h 00m

Baltimore/Washington

Tue 7/15

10:35 am-11:50 am

Nonstop2h 15m

$158

ChicagoBaltimore

MDW - BWI

MDWBWI

Chicago Midway

Tue 7/15

6:20 pm-11:18 pm

1 stop3h 58m

Baltimore/Washington

Sun 7/20

6:00 am-8:44 am

1 stop3h 44m

$197

ChicagoBaltimore

ORD - BWI

ORDBWI

Chicago O'Hare Intl

Thu 8/28

11:05 am-5:36 pm

1 stop5h 31m

Baltimore/Washington

Tue 9/2

6:00 am-10:20 am

1 stop5h 20m

$197

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/11

Showing 1-10 of 60 results
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Best time to book a flight from Illinois to Baltimore

Have a flexible travel schedule? Discover the best time to fly to Baltimore from Illinois with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Illinois to Baltimore

What is the cheapest month to book a flight from Illinois to Baltimore?

Currently, August is the cheapest month in which you can book a flight from Illinois to Baltimore (average of $241). Flying from Illinois to Baltimore in March is currently the most expensive (average of $290). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from IL to BWI?

Find hourly flight availability from Illinois to Baltimore. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated June 12, 2025.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Illinois to Baltimore as you normally would.

Weekly flight availability from Illinois to Baltimore

Explore weekly flight availability from Illinois to Baltimore. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated June 12, 2025.

The most flights from USIL to BWI are scheduled on a Monday (27 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (10 on average).

Rainfall in Baltimore by month

Plan your trip to Baltimore by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Baltimore ranges from 2.9 - 4.1 inches per month. July is typically the wettest month, when rainfall can reach 4.1 in. February is typically the driest time to visit Baltimore when rainfall is around 2.9 in.

Temperature in Baltimore by month

Plan your trip to Baltimore by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Baltimore, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 77.0 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 33.8 F).

Reviews of airlines servicing Baltimore

Get insights into the airlines that provide service to Baltimore. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Baltimore. Reviews last updated June 12, 2025.
Read through reviews of airlines operating flights from Illinois to Baltimore, such as Southwest, Delta and United Airlines. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Southwest
8.0
Very good
4,287 reviews

Entertainment

7.6

Crew

8.6

Overall

8.0

Comfort

8.0

Boarding

8.2

Food

7.1

Reviews

1 / 20
8.0
Excellent

John,May 2025

PVD - BNA

It’s southwest so no frills but clean, efficient and got me to my location.
Southwest
8.0
Very good
4,287 reviews
Southwest
8.0
Very good
4,287 reviews

Entertainment

7.6

Crew

8.6

Overall

8.0

Comfort

8.0

Boarding

8.2

Food

7.1

Reviews

1 / 20
8.0
Excellent

John,May 2025

PVD - BNA

It’s southwest so no frills but clean, efficient and got me to my location.
Delta
8.0
Very good
7,950 reviews
Southwest
8.0
Very good
4,287 reviews

Entertainment

7.6

Crew

8.6

Overall

8.0

Comfort

8.0

Boarding

8.2

Food

7.1

Reviews

1 / 20
8.0
Excellent

John,May 2025

PVD - BNA

It’s southwest so no frills but clean, efficient and got me to my location.
United Airlines
7.4
Good
8,790 reviews
Southwest
8.0
Very good
4,287 reviews

Entertainment

7.6

Crew

8.6

Overall

8.0

Comfort

8.0

Boarding

8.2

Food

7.1

Reviews

1 / 20
8.0
Excellent

John,May 2025

PVD - BNA

It’s southwest so no frills but clean, efficient and got me to my location.
American Airlines
7.2
Good
10,000 reviews
Southwest
8.0
Very good
4,287 reviews

Entertainment

7.6

Crew

8.6

Overall

8.0

Comfort

8.0

Boarding

8.2

Food

7.1

Reviews

1 / 20
8.0
Excellent

John,May 2025

PVD - BNA

It’s southwest so no frills but clean, efficient and got me to my location.
Spirit Airlines
6.3
Okay
8,052 reviews
Southwest
8.0
Very good
4,287 reviews

Entertainment

7.6

Crew

8.6

Overall

8.0

Comfort

8.0

Boarding

8.2

Food

7.1

Reviews

1 / 20
8.0
Excellent

John,May 2025

PVD - BNA

It’s southwest so no frills but clean, efficient and got me to my location.

Related info for your journey

Find useful and relevant information for your journey from Illinois to Baltimore. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly into for flights to Baltimore from Illinois?

    If you book a flight to Baltimore from Illinois, you will be flying to Baltimore/Washington, which is the city’s only airport. Baltimore/Washington (BWI) is located 8.5 mi from the center of Baltimore.

  • What are the cheapest airlines to fly from Illinois to Baltimore one-way?

    The cheapest airlines for a one-way flight from Illinois to Baltimore are Spirit Airlines ($64), Frontier ($67), and Southwest ($70).

  • What are the most popular routes from Illinois to Baltimore?

    The most popular flight routes from Illinois to Baltimore are Chicago O'Hare Intl - Baltimore/Washington, Chicago Midway - Baltimore/Washington and Lambert-St Louis - Baltimore/Washington.

  • What are the most reliable airlines from Illinois to Baltimore?

    Looking for the most reliable airlines to get you to your destination on time? Our data shows these are most likely to get you from Illinois to Baltimore on time: Republic Airways (100%), United Airlines (87%), Air New Zealand (81%).

  • What are the cheapest flights from Illinois to Baltimore?

    While on average a flight from Illinois to Baltimore is generally $275, our data shows the cheapest flight currently is $46. When looking at the most popular route, (Chicago O'Hare Intl - Baltimore/Washington), you can expect to pay $100 for that flight.

  • Can I find deals for flights from Illinois to Baltimore that include hotel bookings?

    Yes. In addition to deals on Illinois to Baltimore flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Illinois to Baltimore?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Illinois to Baltimore.

  • Can I find deals for business class flights from Illinois to Baltimore?

    Yes. Cheapflights offers flight deals from Illinois to Baltimore by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Illinois to Baltimore?

    Currently, August is the cheapest month in which you can book a flight from Illinois to Baltimore (average of $241). Flying from Illinois to Baltimore in March is currently the most expensive (average of $290). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

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Alternative routes for Illinois to Baltimore

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Top 6 airlines flying from Illinois to Baltimore

Discover the top 6 airlines that operate flights from Illinois to Baltimore. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated June 12, 2025.
AirlineCheapestAverageFlexibilityOn-time
Spirit AirlinesCheapest$38Average$174FlexibilityNo cancel feeOn-time65%
FrontierCheapest$63Average$171FlexibilityNo cancel feeOn-time62%
American AirlinesCheapest$123Average$400FlexibilityNo cancel feeOn-time71%
SouthwestCheapest$142Average$275FlexibilityNo cancel feeOn-time63%
United AirlinesCheapest$154Average$307FlexibilityNo cancel feeOn-time69%
DeltaCheapest$176Average$267FlexibilityNo cancel feeOn-timeN/A

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