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$50+ 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 2/12. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — BWI
Nov 12 — Nov 191
Wed 11/12
Wed 11/19
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 October 13, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$88
(Kiwi.com)

One-way from

$50
(Frontier)

Popular in

January

Cheapest in

August

Average price

$248
Provider with most accurate pricing for Chicago (CHI)-Washington, D.C. (WAS) flight deals.
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Provider most trusted by Cheapflights users for Chicago (CHI)-Washington, D.C. (WAS) flights.
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From Illinois to Baltimore/Washington
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One-way flight from Illinois to Baltimore/Washington
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Highest demand for flights based on searches. 5% potential increase in price ($12 potential increase over avg. RT price).
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Cheapest flight prices on average. 1% potential price decrease ($4 potential savings vs. average RT price).
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Average for round-trip flights in October 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 October 13, 2025.

This Kiwi.com deal was found by Cheapflights users on 10/11. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/1812:30 pmMDW - BWI
Nonstop1h 57mFrontier
Mon 10/207:54 pmBWI - MDW
Nonstop2h 06mFrontier
Deal found 10/11$87
This Kiwi.com deal was found by Cheapflights users on 10/12. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/133:40 pmMDW - BWI
Nonstop1h 55mFrontier
Sun 11/169:21 amBWI - MDW
Nonstop2h 05mFrontier
Deal found 10/12$88
This Kiwi.com deal was found by Cheapflights users on 10/12. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/143:40 pmMDW - BWI
Nonstop1h 55mFrontier
Sun 11/169:21 amBWI - MDW
Nonstop2h 05mFrontier
Deal found 10/12$89
This Frontier deal was found by Cheapflights users on 10/11. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/16:20 amMDW - BWI
1 stop7h 32mFrontier
Sun 11/29:21 amBWI - MDW
Nonstop2h 05mFrontier
Deal found 10/11$90
This Kiwi.com deal was found by Cheapflights users on 10/12. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/2712:53 pmORD - BWI
Nonstop2h 03mFrontier
Mon 11/34:09 pmBWI - ORD
Nonstop2h 16mFrontier
Deal found 10/12$90
This Frontier deal was found by Cheapflights users on 10/13. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/303:40 pmMDW - BWI
Nonstop1h 55mFrontier
Mon 11/37:25 pmBWI - MDW
Nonstop2h 06mFrontier
Deal found 10/13$91
This Frontier deal was found by Cheapflights users on 10/13. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/3011:11 amORD - BWI
Nonstop2h 03mFrontier
Mon 11/34:09 pmBWI - ORD
Nonstop2h 16mFrontier
Deal found 10/13$91
This Frontier deal was found by Cheapflights users on 10/12. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/133:40 pmMDW - BWI
Nonstop1h 55mFrontier
Mon 11/179:13 amBWI - MDW
1 stop10h 26mFrontier
Deal found 10/12$92
This Frontier deal was found by Cheapflights users on 10/12. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/1312:00 pmORD - BWI
Nonstop2h 03mFrontier
Mon 11/175:50 amBWI - ORD
1 stop5h 51mFrontier
Deal found 10/12$92
This Frontier deal was found by Cheapflights users on 10/12. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/2312:30 pmMDW - BWI
Nonstop1h 57mFrontier
Fri 10/247:54 pmBWI - MDW
Nonstop2h 06mFrontier
Deal found 10/12$95
This Frontier deal was found by Cheapflights users on 10/12. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/313:40 pmMDW - BWI
Nonstop1h 55mFrontier
Mon 11/34:30 pmBWI - MDW
1 stop6h 41mFrontier
Deal found 10/12$96
This CheapOair deal was found by Cheapflights users on 10/13. 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.
Thu 11/63:40 pmMDW - BWI
Nonstop1h 55mFrontier
Sun 11/99:21 amBWI - MDW
Nonstop2h 05mFrontier
Deal found 10/13$97

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 October 13, 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

Thu 11/6

3:40 pm-6:35 pm

Nonstop1h 55m

Baltimore/Washington

Sun 11/9

9:21 am-10:26 am

Nonstop2h 05m

$97

ChicagoBaltimore

ORD - BWI

ORDBWI

Chicago O'Hare Intl

Fri 11/14

12:04 pm-3:07 pm

Nonstop2h 03m

Baltimore/Washington

Sat 11/15

5:48 am-11:30 am

1 stop6h 42m

$120

ChicagoBaltimore

MDW - BWI

MDWBWI

Chicago Midway

Thu 10/30

6:20 am-3:20 pm

1 stop8h 00m

Baltimore/Washington

Sun 11/2

8:13 am-12:30 am

1 stop17h 17m

$129

ChicagoBaltimore

MDW - BWI

MDWBWI

Chicago Midway

Sat 11/15

1:15 pm-4:00 pm

Nonstop1h 45m

Baltimore/Washington

Wed 11/19

4:45 pm-5:50 pm

Nonstop2h 05m

$139

ChicagoBaltimore

ORD - BWI

ORDBWI

Chicago O'Hare Intl

Sat 11/15

6:25 pm-9:25 pm

Nonstop2h 00m

Baltimore/Washington

Wed 1/14

10:05 am-11:25 am

Nonstop2h 20m

$139

ChicagoBaltimore

MDW - BWI

MDWBWI

Chicago Midway

Wed 11/19

9:20 am-12:10 pm

Nonstop1h 50m

Baltimore/Washington

Mon 11/24

7:45 am-8:50 am

Nonstop2h 05m

$139

ChicagoBaltimore

ORD - BWI

ORDBWI

Chicago O'Hare Intl

Wed 11/12

7:05 am-9:59 am

Nonstop1h 54m

Baltimore/Washington

Wed 11/19

6:15 am-7:31 am

Nonstop2h 16m

$139

ChicagoBaltimore

ORD - BWI

ORDBWI

Chicago O'Hare Intl

Mon 11/24

7:05 am-9:59 am

Nonstop1h 54m

Baltimore/Washington

Fri 11/28

6:15 am-7:31 am

Nonstop2h 16m

$174

St. LouisBaltimore

STL - BWI

STLBWI

Lambert-St Louis

Sat 11/15

7:45 pm-8:34 am

2 stops35h 49m

Baltimore/Washington

Wed 11/19

10:00 am-11:01 pm

1 stop14h 01m

$174

ChicagoBaltimore

ORD - BWI

ORDBWI

Chicago O'Hare Intl

Thu 12/11

2:30 pm-5:25 pm

Nonstop1h 55m

Baltimore/Washington

Mon 12/15

1:10 pm-2:19 pm

Nonstop2h 09m

$177

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/12

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, February is the cheapest month in which you can book a flight from Illinois to Baltimore (average of $57). Flying from Illinois to Baltimore in April is currently the most expensive (average of $169). 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 October 13, 2025.

When flying from Illinois to Baltimore, the time of day you fly usually plays a role in the price. Save by searching for a flight in the evening, which can drop the price by up to 50% versus a flight in the morning.

What is the cheapest day to fly from Illinois to Baltimore?

Use this chart to determine the cheapest time to fly round-trip from Illinois to Baltimore. Price data was last updated on December 16, 2024.

Travelers seeking maximum savings on their Illinois to Baltimore flight should consider departing on Monday evenings when fares are most often at their lowest. Sunday afternoons flights should be avoided if possible as fares are typically the most expensive at this time.

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 October 13, 2025.

The most flights from USIL to BWI are scheduled on a Sunday (21 on average). You will have fewer flight options on Tuesday, which is when the least amount of flights are scheduled (19 on average).

How much does it cost to fly round-trip from Illinois to Baltimore?

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.

  • How long is the flight from Illinois to Baltimore?

    Departing from Illinois to Baltimore will take you 1h 45m. The distance from Illinois to Baltimore is about 609 mi. Most flights are nonstop.

  • 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 Frontier ($54), Southwest ($70), and Spirit Airlines ($102).

  • 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: Royal Jordanian (87%), Alaska Airlines (87%), American Airlines (87%).

  • What are the cheapest flights from Illinois to Baltimore?

    While on average a flight from Illinois to Baltimore is generally $269, our data shows the cheapest flight currently is $47. When looking at the most popular route, (Chicago O'Hare Intl - Baltimore/Washington), you can expect to pay $96 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, February is the cheapest month in which you can book a flight from Illinois to Baltimore (average of $57). Flying from Illinois to Baltimore in April is currently the most expensive (average of $169). 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 October 13, 2025.
AirlineCheapestAverageFlexibilityOn-time
Spirit AirlinesCheapest$45Average$152FlexibilityNo cancel feeOn-time65%
FrontierCheapest$75Average$159FlexibilityNo cancel feeOn-time62%
SouthwestCheapest$145Average$276FlexibilityNo cancel feeOn-time63%
United AirlinesCheapest$145Average$315FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$147Average$431FlexibilityNo cancel feeOn-time71%
DeltaCheapest$183Average$344FlexibilityNo cancel feeOn-timeN/A

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