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$59+ Cheap flights from Illinois to Maryland

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 10/9. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — BWI
Oct 17 — Oct 241
Fri 10/17
Fri 10/24
1 adult, Economy
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Cheap flight deals from Illinois to Maryland

Keep the following information in mind while searching for Illinois to Maryland flight deals. Data was last updated September 17, 2025.

Round-trip from

$88
(Cheapflightsfares)

One-way from

$59
(Frontier)

Popular in

January

Cheapest in

August

Average price

$212

Good round-trip deal

$111 or less

Good one-way deal

$89 or less
From Illinois to Maryland
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One-way flight from Illinois to Maryland
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Highest demand for flights based on searches. 5% potential increase in price ($13 potential increase over avg. RT price).
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Cheapest flight prices on average. 1% potential price decrease ($3 potential savings vs. average RT price).
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Average for round-trip flights in September 2025
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Price to beat on a round-trip flight from Illinois to Maryland.
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Price to beat on a one-way flight from Illinois to Maryland.
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Find flight deals from Illinois to Maryland

Cheapest flights from Illinois to Maryland
Explore the most affordable flight options available from Illinois to Maryland. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 17, 2025.

This Cheapflightsfares deal was found by Cheapflights users on 9/15. 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 10/1712:48 pmORD - BWI
Nonstop2h 03mFrontier
Mon 10/205:04 pmBWI - ORD
Nonstop2h 16mFrontier
Deal found 9/15$88
This Frontier deal was found by Cheapflights users on 9/15. 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 10/1712:48 pmORD - BWI
Nonstop2h 03mFrontier
Sun 10/198:48 pmBWI - ORD
Nonstop2h 29mFrontier
Deal found 9/15$89
This Frontier deal was found by Cheapflights users on 9/16. 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 11/612:00 pmORD - BWI
Nonstop2h 03mFrontier
Sun 11/94:09 pmBWI - ORD
Nonstop2h 16mFrontier
Deal found 9/16$91
This Kiwi.com deal was found by Cheapflights users on 9/15. 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 10/2312:30 pmMDW - BWI
Nonstop1h 57mFrontier
Sat 10/254:12 pmBWI - MDW
Nonstop2h 01mFrontier
Deal found 9/15$92
This Gotogate deal was found by Cheapflights users on 9/15. 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 Gotogate 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 9/15$94
This CheapOair deal was found by Cheapflights users on 9/17. 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 10/1612:30 pmMDW - BWI
Nonstop1h 57mFrontier
Mon 10/207:54 pmBWI - MDW
Nonstop2h 06mFrontier
Deal found 9/17$96
This Kiwi.com deal was found by Cheapflights users on 9/17. 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 10/36:11 pmORD - BWI
Nonstop2h 03mFrontier
Mon 10/69:59 pmBWI - ORD
Nonstop2h 21mFrontier
Deal found 9/17$96
This Kiwi.com deal was found by Cheapflights users on 9/17. 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 11/63:40 pmMDW - BWI
Nonstop1h 55mFrontier
Sun 11/99:21 amBWI - MDW
Nonstop2h 05mFrontier
Deal found 9/17$98
This CheapOair deal was found by Cheapflights users on 9/16. 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.
Fri 11/73:47 pmMDW - BWI
Nonstop1h 55mFrontier
Mon 11/107:25 pmBWI - MDW
Nonstop2h 06mFrontier
Deal found 9/16$99
This Cheapflightsfares deal was found by Cheapflights users on 9/15. 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 11/143:11 pmORD - BWI
Nonstop1h 54mSpirit Airlines
Sun 11/165:44 pmBWI - ORD
Nonstop2h 17mSpirit Airlines
Deal found 9/15$99
This Spirit deal was found by Cheapflights users on 9/16. 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 Spirit is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/73:11 pmORD - BWI
Nonstop1h 54mSpirit Airlines
Sun 11/95:44 pmBWI - ORD
Nonstop2h 17mSpirit Airlines
Deal found 9/16$100
This Cheapflightsfares deal was found by Cheapflights users on 9/15. 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.
Thu 10/303:40 pmMDW - BWI
Nonstop1h 55mFrontier
Mon 11/37:25 pmBWI - MDW
Nonstop2h 06mFrontier
Deal found 9/15$101

Cheapflights Fare Finder

 
Customize your flight search to find flights from Illinois to Maryland 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 September 17, 2025.
Use the filters below to find and compare flights from Illinois to Maryland that are best for you.

Fly from

Illinois

Fly to

Maryland

Route

Depart

Return

Price

ChicagoBaltimore

MDW - BWI

MDWBWI

Chicago Midway

Wed 10/22

7:40 pm-10:30 pm

Nonstop1h 50m

Baltimore/Washington

Sat 10/25

7:55 pm-8:55 pm

Nonstop2h 00m

$139

ChicagoPhiladelphia

ORD - PHL

ORDPHL

Chicago O'Hare Intl

Wed 12/10

2:30 pm-5:39 pm

Nonstop2h 09m

Philadelphia

Sat 12/13

5:07 pm-6:36 pm

Nonstop2h 29m

$139

ChicagoBaltimore

MDW - BWI

MDWBWI

Chicago Midway

Wed 10/15

7:40 pm-10:30 pm

Nonstop1h 50m

Baltimore/Washington

Wed 10/22

1:25 pm-2:25 pm

Nonstop2h 00m

$139

ChicagoPhiladelphia

ORD - PHL

ORDPHL

Chicago O'Hare Intl

Sat 10/18

8:45 am-11:56 am

Nonstop2h 11m

Philadelphia

Tue 10/21

6:30 am-7:52 am

Nonstop2h 22m

$139

ChicagoBaltimore

ORD - BWI

ORDBWI

Chicago O'Hare Intl

Wed 10/22

2:22 pm-5:26 pm

Nonstop2h 04m

Baltimore/Washington

Wed 10/29

6:15 am-7:31 am

Nonstop2h 16m

$139

ChicagoBaltimore

ORD - BWI

ORDBWI

Chicago O'Hare Intl

Wed 12/10

6:20 pm-9:19 pm

Nonstop1h 59m

Baltimore/Washington

Sat 12/13

10:20 am-11:28 am

Nonstop2h 08m

$139

ChicagoWashington, D.C.

MDW - IAD

MDWIAD

Chicago Midway

Thu 10/2

6:20 am-12:55 pm

1 stop5h 35m

Washington, D.C. Dulles Intl

Tue 10/7

9:00 am-1:38 pm

1 stop5h 38m

$143

ChicagoWashington, D.C.

MDW - IAD

MDWIAD

Chicago Midway

Mon 10/20

9:45 am-7:14 pm

1 stop8h 29m

Washington, D.C. Dulles Intl

Wed 10/22

9:00 am-1:38 pm

1 stop5h 38m

$143

ChicagoWashington, D.C.

MDW - IAD

MDWIAD

Chicago Midway

Wed 10/15

8:05 am-7:46 pm

1 stop10h 41m

Washington, D.C. Dulles Intl

Fri 10/17

9:28 pm-10:21 am

1 stop13h 53m

$143

ChicagoWashington, D.C.

MDW - IAD

MDWIAD

Chicago Midway

Sat 10/25

6:15 am-3:17 pm

1 stop8h 02m

Washington, D.C. Dulles Intl

Wed 10/29

8:47 am-12:41 pm

1 stop4h 54m

$143

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/16

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

Have a flexible travel schedule? Discover the best time to fly to Maryland 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 Maryland

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

Currently, August is the cheapest month in which you can book a flight from Illinois to Maryland (average of $241). Flying from Illinois to Maryland 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 MD?

Find hourly flight availability from Illinois to Maryland. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated September 17, 2025.

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

Weekly flight availability from Illinois to Maryland

Explore weekly flight availability from Illinois to Maryland. 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 September 17, 2025.

The most flights from USIL to USMD are scheduled on a Monday (24 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (9 on average).

Reviews of airlines servicing Maryland

Get insights into the airlines that provide service to Maryland. 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 Maryland. Reviews last updated September 17, 2025.
Read through reviews of airlines operating flights from Illinois to Maryland, such as Southwest, United Airlines, and American Airlines. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Southwest
8.0
Very good
4,242 reviews

Boarding

8.1

Comfort

8.0

Crew

8.6

Entertainment

7.5

Food

7.0

Overall

8.0

Reviews

1 / 20
2.0
Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines
Southwest
8.0
Very good
4,242 reviews
Southwest
8.0
Very good
4,242 reviews

Boarding

8.1

Comfort

8.0

Crew

8.6

Entertainment

7.5

Food

7.0

Overall

8.0

Reviews

1 / 20
2.0
Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines
United Airlines
7.4
Good
8,926 reviews
Southwest
8.0
Very good
4,242 reviews

Boarding

8.1

Comfort

8.0

Crew

8.6

Entertainment

7.5

Food

7.0

Overall

8.0

Reviews

1 / 20
2.0
Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines
American Airlines
7.2
Good
10,000 reviews
Southwest
8.0
Very good
4,242 reviews

Boarding

8.1

Comfort

8.0

Crew

8.6

Entertainment

7.5

Food

7.0

Overall

8.0

Reviews

1 / 20
2.0
Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines
Spirit Airlines
6.3
Okay
8,023 reviews
Southwest
8.0
Very good
4,242 reviews

Boarding

8.1

Comfort

8.0

Crew

8.6

Entertainment

7.5

Food

7.0

Overall

8.0

Reviews

1 / 20
2.0
Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines
Frontier
5.8
Fair
3,173 reviews
Southwest
8.0
Very good
4,242 reviews

Boarding

8.1

Comfort

8.0

Crew

8.6

Entertainment

7.5

Food

7.0

Overall

8.0

Reviews

1 / 20
2.0
Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines

Related info for your journey

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

  • How long is the flight from Illinois to Maryland?

    Airlines like Southwest, United Airlines, and Frontier fly from Illinois to Maryland in about 1h 50m. The time it takes to get you to your destination can typically vary by up to 3h 45m. There are 609 mi between Illinois and Maryland. Both multi-stop and nonstop flights can be found to your destination and back.

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

    The cheapest airline one-way is Southwest, with whom users have recently found tickets for as low as $70. However, be on the lookout for offers from United Airlines and Frontier, as they are both options that can get you from Illinois to Maryland for a low price.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Illinois to Maryland 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 Maryland?

    Currently, August is the cheapest month in which you can book a flight from Illinois to Maryland (average of $241). Flying from Illinois to Maryland 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 Maryland

See prices for flight routes from nearby airports that may be better suited for you.
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Top 6 airlines flying from Illinois to Maryland

Discover the top 6 airlines that operate flights from Illinois to Maryland. 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 September 17, 2025.
AirlineCheapestAverageFlexibilityOn-time
Spirit AirlinesCheapest$45Average$142FlexibilityNo cancel feeOn-time65%
FrontierCheapest$75Average$159FlexibilityNo cancel feeOn-time62%
American AirlinesCheapest$124Average$419FlexibilityNo cancel feeOn-time71%
SouthwestCheapest$153Average$274FlexibilityNo cancel feeOn-time63%
United AirlinesCheapest$154Average$313FlexibilityNo cancel feeOn-time69%
DeltaCheapest$183Average$346FlexibilityNo cancel feeOn-timeN/A

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