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$64+ 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 9/15. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — BWI
Aug 27 — Sep 31
Wed 8/27
Wed 9/3
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 August 22, 2025.

Round-trip from

$100
(FlightHub)

One-way from

$64
(CheapOair)

Popular in

January

Cheapest in

August

Average price

$169

Good round-trip deal

$141 or less

Good one-way deal

$83 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 August 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 August 22, 2025.

This FlightHub deal was found by Cheapflights users on 8/21. 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 10/2312:30 pmMDW - BWI
Nonstop1h 57mFrontier
Sat 10/254:12 pmBWI - MDW
Nonstop2h 01mFrontier
Deal found 8/21$100
This Cheapflightsfares deal was found by Cheapflights users on 8/20. 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.
Sun 9/146:10 amORD - BWI
Nonstop1h 52mSpirit Airlines
Tue 9/164:00 pmBWI - ORD
1 stop7h 48mSpirit Airlines
Deal found 8/20$100
This FlightHub deal was found by Cheapflights users on 8/21. 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 9/251:49 pmMDW - BWI
Nonstop2h 01mFrontier
Mon 9/295:40 pmBWI - MDW
Nonstop2h 03mFrontier
Deal found 8/21$101
This Frontier deal was found by Cheapflights users on 8/20. 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 9/65:40 pmORD - BWI
1 stop5h 26mFrontier
Sun 9/79:59 pmBWI - ORD
Nonstop2h 21mFrontier
Deal found 8/20$101
This Cheapflightsfares deal was found by Cheapflights users on 8/19. 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 8/19$102
This Cheapflightsfares deal was found by Cheapflights users on 8/20. 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.
Sun 8/318:40 amMDW - BWI
Nonstop1h 54mFrontier
Fri 9/55:40 pmBWI - MDW
Nonstop2h 03mFrontier
Deal found 8/20$103
This Frontier deal was found by Cheapflights users on 8/20. 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 9/46:11 pmORD - BWI
Nonstop2h 03mFrontier
Sun 9/79:59 pmBWI - ORD
Nonstop2h 21mFrontier
Deal found 8/20$103
This FlightHub deal was found by Cheapflights users on 8/18. 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 10/2312:30 pmMDW - BWI
Nonstop1h 57mFrontier
Sun 10/264:26 pmBWI - MDW
Nonstop2h 01mFrontier
Deal found 8/18$105
This Frontier deal was found by Cheapflights users on 8/20. 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 9/46:11 pmORD - BWI
Nonstop2h 03mFrontier
Fri 9/129:59 pmBWI - ORD
Nonstop2h 21mFrontier
Deal found 8/20$105
This Gotogate deal was found by Cheapflights users on 8/21. 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.
Fri 9/55:15 pmMDW - BWI
1 stop6h 02mFrontier
Mon 9/85:40 pmBWI - MDW
Nonstop2h 03mFrontier
Deal found 8/21$106
This Gotogate deal was found by Cheapflights users on 8/21. 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.
Fri 9/56:11 pmORD - BWI
Nonstop2h 03mFrontier
Mon 9/86:22 amBWI - ORD
1 stop10h 28mFrontier
Deal found 8/21$106
This Cheapflightsfares deal was found by Cheapflights users on 8/20. 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 9/51:49 pmMDW - BWI
Nonstop2h 01mFrontier
Sun 9/215:40 pmBWI - MDW
Nonstop2h 03mFrontier
Deal found 8/20$107

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 August 22, 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

Thu 10/23

12:30 pm-3:27 pm

Nonstop1h 57m

Baltimore/Washington

Sat 10/25

4:12 pm-5:13 pm

Nonstop2h 01m

$100

ChicagoBaltimore

ORD - BWI

ORDBWI

Chicago O'Hare Intl

Sat 9/13

11:57 am-11:25 pm

1 stop10h 28m

Baltimore/Washington

Thu 9/18

9:57 am-11:10 am

Nonstop2h 13m

$100

ChicagoBaltimore

ORD - BWI

ORDBWI

Chicago O'Hare Intl

Mon 9/8

6:11 pm-9:14 pm

Nonstop2h 03m

Baltimore/Washington

Fri 9/12

9:59 pm-11:20 pm

Nonstop2h 21m

$100

ChicagoBaltimore

MDW - BWI

MDWBWI

Chicago Midway

Thu 9/25

1:49 pm-4:50 pm

Nonstop2h 01m

Baltimore/Washington

Mon 9/29

5:40 pm-6:43 pm

Nonstop2h 03m

$101

ChicagoBaltimore

MDW - BWI

MDWBWI

Chicago Midway

Thu 10/30

3:40 pm-6:35 pm

Nonstop1h 55m

Baltimore/Washington

Mon 11/3

7:25 pm-8:31 pm

Nonstop2h 06m

$101

ChicagoBaltimore

MDW - BWI

MDWBWI

Chicago Midway

Fri 11/14

3:40 pm-6:35 pm

Nonstop1h 55m

Baltimore/Washington

Sun 11/16

9:21 am-10:26 am

Nonstop2h 05m

$101

ChicagoBaltimore

MDW - BWI

MDWBWI

Chicago Midway

Thu 11/6

3:40 pm-6:35 pm

Nonstop1h 55m

Baltimore/Washington

Mon 11/10

7:25 pm-8:31 pm

Nonstop2h 06m

$101

ChicagoBaltimore

ORD - BWI

ORDBWI

Chicago O'Hare Intl

Sat 9/6

5:40 pm-12:06 am

1 stop5h 26m

Baltimore/Washington

Sun 9/7

9:59 pm-11:20 pm

Nonstop2h 21m

$101

ChicagoBaltimore

MDW - BWI

MDWBWI

Chicago Midway

Fri 10/31

3:40 pm-6:35 pm

Nonstop1h 55m

Baltimore/Washington

Mon 11/3

7:25 pm-8:31 pm

Nonstop2h 06m

$103

ChicagoBaltimore

MDW - BWI

MDWBWI

Chicago Midway

Thu 9/4

1:49 pm-4:50 pm

Nonstop2h 01m

Baltimore/Washington

Sat 9/6

4:24 pm-9:18 am

1 stop17h 54m

$103

Flights are sorted by cheapest round-trip flights first.

Deals found on 8/21

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 August 22, 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 August 22, 2025.

The most flights from USIL to USMD are scheduled on a Sunday (24 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (2 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 August 22, 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
4,245 reviews

Overall

8.0

Food

7.0

Entertainment

7.5

Comfort

8.0

Boarding

8.1

Crew

8.6

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
4,245 reviews
Southwest
8.0
Very good
4,245 reviews

Overall

8.0

Food

7.0

Entertainment

7.5

Comfort

8.0

Boarding

8.1

Crew

8.6

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
8,934 reviews
Southwest
8.0
Very good
4,245 reviews

Overall

8.0

Food

7.0

Entertainment

7.5

Comfort

8.0

Boarding

8.1

Crew

8.6

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
4,245 reviews

Overall

8.0

Food

7.0

Entertainment

7.5

Comfort

8.0

Boarding

8.1

Crew

8.6

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
8,029 reviews
Southwest
8.0
Very good
4,245 reviews

Overall

8.0

Food

7.0

Entertainment

7.5

Comfort

8.0

Boarding

8.1

Crew

8.6

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
3,207 reviews
Southwest
8.0
Very good
4,245 reviews

Overall

8.0

Food

7.0

Entertainment

7.5

Comfort

8.0

Boarding

8.1

Crew

8.6

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 Frontier and Spirit Airlines fly from Illinois to Maryland in about 1h 57m. The time it takes to get you to your destination can typically vary by up to 8h 31m. 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 Frontier, with whom users have recently found tickets for as low as $64. However, be on the lookout for offers from Spirit Airlines and Southwest, 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 August 22, 2025.
AirlineCheapestAverageFlexibilityOn-time
Spirit AirlinesCheapest$46Average$173FlexibilityNo cancel feeOn-time65%
FrontierCheapest$78Average$174FlexibilityNo cancel feeOn-time62%
American AirlinesCheapest$137Average$428FlexibilityNo cancel feeOn-time71%
SouthwestCheapest$139Average$274FlexibilityNo cancel feeOn-time63%
United AirlinesCheapest$158Average$315FlexibilityNo cancel feeOn-time69%
DeltaCheapest$183Average$344FlexibilityNo cancel feeOn-timeN/A

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