HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Maryland

$55+ 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 3/12. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — BWI
Feb 25 — Mar 41
Tue 2/25
Tue 3/4
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Illinois to Maryland with Cheapflights

1. Tell us where you want to go
Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”
2. Select your favorite providers
We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.
3. Compare prices and book
Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

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 February 20, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$110
(Frontier)

One-way from

$55
(Frontier)

Popular in

March

Cheapest in

August

Average price

$267

Good round-trip deal

$148 or less

Good one-way deal

$69 or less
Provider with most accurate pricing for Chicago (CHI)-Washington, D.C. (WAS) flight deals.
Search Deals
Provider most trusted by Cheapflights users for Chicago (CHI)-Washington, D.C. (WAS) flights.
Search Deals
From Illinois to Maryland
Search Deals
One-way flight from Illinois to Maryland
Search Deals
Highest demand for flights based on searches. 8% potential increase in price ($20 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease ($5 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in February 2025
Search Deals
Price to beat on a round-trip flight from Illinois to Maryland.
Search Deals
Price to beat on a one-way flight from Illinois to Maryland.
Search Deals

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 February 20, 2025.

This Frontier deal was found by Cheapflights users on 2/19. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/235:41 pmSTL - PHL
1 stop12h 51mFrontier
Sat 4/264:28 pmPHL - STL
1 stop8h 36mFrontier
Deal found 2/19$110
This FlightHub deal was found by Cheapflights users on 2/20. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 6/46:00 amORD - BWI
1 stop9h 51mMultiple Airlines
Sat 6/77:17 pmBWI - ORD
1 stop13h 39mMultiple Airlines
Deal found 2/20$112
This Frontier deal was found by Cheapflights users on 2/20. 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 5/246:01 pmORD - BWI
1 stop5h 34mFrontier
Tue 5/276:00 amBWI - ORD
1 stop6h 32mFrontier
Deal found 2/20$113
This Mytrip deal was found by Cheapflights users on 2/20. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/256:25 pmORD - BWI
1 stop4h 47mSpirit Airlines
Mon 3/316:05 amBWI - ORD
1 stop27h 39mSpirit Airlines
Deal found 2/20$116
This Kiwi.com deal was found by Cheapflights users on 2/19. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 4/256:15 amMDW - BWI
Nonstop1h 50mFrontier
Mon 4/2810:00 amBWI - MDW
Nonstop2h 06mFrontier
Deal found 2/19$117
This CheapOair deal was found by Cheapflights users on 2/19. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 3/306:47 pmSTL - PHL
1 stop13h 11mMultiple Airlines
Tue 4/14:16 pmPHL - STL
1 stop8h 30mMultiple Airlines
Deal found 2/19$139
This Southwest deal was found by Cheapflights users on 2/19. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 3/298:55 pmMDW - BWI
Nonstop1h 45mSouthwest
Tue 4/16:45 amBWI - MDW
Nonstop2h 10mSouthwest
Deal found 2/19$159
This American Airlines deal was found by Cheapflights users on 2/20. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 4/56:45 pmORD - BWI
Nonstop2h 04mAmerican Airlines
Tue 4/87:30 amBWI - ORD
Nonstop2h 10mAmerican Airlines
Deal found 2/20$159
This Mytrip deal was found by Cheapflights users on 2/18. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 3/306:47 pmSTL - PHL
1 stop13h 11mSpirit Airlines
Mon 3/317:40 pmPHL - STL
1 stop23h 12mSpirit Airlines
Deal found 2/18$161
This Frontier deal was found by Cheapflights users on 2/19. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/1511:00 amMDW - IAD
1 stop7h 44mFrontier
Mon 4/2112:58 pmIAD - MDW
1 stop7h 48mFrontier
Deal found 2/19$175
This Southwest deal was found by Cheapflights users on 2/20. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 3/611:25 amORD - BWI
Nonstop1h 50mSouthwest
Mon 3/1011:45 amBWI - ORD
Nonstop2h 20mSouthwest
Deal found 2/20$177
This American Airlines deal was found by Cheapflights users on 2/19. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/186:05 amORD - DCA
Nonstop1h 50mAmerican Airlines
Tue 3/182:54 pmDCA - ORD
Nonstop2h 21mAmerican Airlines
Deal found 2/19$177

Find flights from Illinois to Maryland within your budget

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 February 20, 2025.

Fly from

Illinois

Fly to

Maryland

Route

Depart

Return

Price

St. LouisPhiladelphia

STL - PHL

STLPHL

Lambert-St Louis

Wed 4/23

5:41 pm-7:32 am

1 stop12h 51m

Philadelphia

Sat 4/26

4:28 pm-12:04 am

1 stop8h 36m

$110

ChicagoBaltimore

ORD - BWI

ORDBWI

Chicago O'Hare Intl

Wed 6/4

6:00 am-4:51 pm

1 stop9h 51m

Baltimore/Washington

Sat 6/7

7:17 pm-7:56 am

1 stop13h 39m

$112

ChicagoBaltimore

ORD - BWI

ORDBWI

Chicago O'Hare Intl

Sat 5/24

6:01 pm-12:35 am

1 stop5h 34m

Baltimore/Washington

Tue 5/27

6:00 am-11:32 am

1 stop6h 32m

$113

ChicagoBaltimore

ORD - BWI

ORDBWI

Chicago O'Hare Intl

Tue 3/25

6:25 pm-12:12 am

1 stop4h 47m

Baltimore/Washington

Mon 3/31

6:05 am-8:44 am

1 stop27h 39m

$116

ChicagoBaltimore

MDW - BWI

MDWBWI

Chicago Midway

Fri 4/25

6:15 am-9:05 am

Nonstop1h 50m

Baltimore/Washington

Mon 4/28

10:00 am-11:06 am

Nonstop2h 06m

$117

St. LouisPhiladelphia

STL - PHL

STLPHL

Lambert-St Louis

Sun 3/30

6:47 pm-8:58 am

1 stop13h 11m

Philadelphia

Tue 4/1

4:16 pm-11:46 pm

1 stop8h 30m

$139

ChicagoBaltimore

MDW - BWI

MDWBWI

Chicago Midway

Sat 3/29

8:55 pm-11:40 pm

Nonstop1h 45m

Baltimore/Washington

Tue 4/1

6:45 am-7:55 am

Nonstop2h 10m

$159

ChicagoBaltimore

ORD - BWI

ORDBWI

Chicago O'Hare Intl

Sat 4/5

6:45 pm-9:49 pm

Nonstop2h 04m

Baltimore/Washington

Tue 4/8

7:30 am-8:40 am

Nonstop2h 10m

$159

St. LouisPhiladelphia

STL - PHL

STLPHL

Lambert-St Louis

Sun 3/30

6:47 pm-8:58 am

1 stop13h 11m

Philadelphia

Mon 3/31

7:40 pm-5:52 pm

1 stop23h 12m

$161

ChicagoWashington, D.C.

MDW - IAD

MDWIAD

Chicago Midway

Tue 4/15

11:00 am-7:44 pm

1 stop7h 44m

Washington, D.C. Dulles Intl

Mon 4/21

12:58 pm-7:46 pm

1 stop7h 48m

$175

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/19

Showing 1-10 of 60 results
1
2
3
...
6

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.

Travel insights for flights from Illinois to Maryland

Get recent, data-driven insights about flights from Illinois to Maryland including ideal travel times, pricing trends, and more.

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 February 20, 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 February 20, 2025.

The most flights from USIL to USMD are scheduled on a Monday (21 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (7 on average).

Rainfall in Maryland by month

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

In terms of precipitation, rainfall in Maryland 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 Maryland when rainfall is around 2.9 in.

Temperature in Maryland by month

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

If weather is an important factor for your trip to Maryland, 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 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 February 20, 2025.
To help decide which airline to fly from Illinois to Maryland, see what other customers have to say about Southwest, Alaska Airlines and Delta. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Southwest
8.1
Very good
4,411 reviews

Food

7.1

Boarding

8.2

Overall

8.1

Entertainment

7.6

Comfort

8.1

Crew

8.7

Reviews

1 / 20

2.0
Mediocre

Anonymous,Feb 2025

MCO - STL

Cancelled at last minute, SWA unable to assist in formulating alternate plans. Wound up renting a car and driving 13 hours to beat bad weather forecast at home. Not SWA’s fault that there was significant bad weather across the country.

Southwest
8.1
Very good
4,411 reviews
Southwest
8.1
Very good
4,411 reviews

Food

7.1

Boarding

8.2

Overall

8.1

Entertainment

7.6

Comfort

8.1

Crew

8.7

Reviews

1 / 20

2.0
Mediocre

Anonymous,Feb 2025

MCO - STL

Cancelled at last minute, SWA unable to assist in formulating alternate plans. Wound up renting a car and driving 13 hours to beat bad weather forecast at home. Not SWA’s fault that there was significant bad weather across the country.

Alaska Airlines
8.0
Very good
9,697 reviews
Southwest
8.1
Very good
4,411 reviews

Food

7.1

Boarding

8.2

Overall

8.1

Entertainment

7.6

Comfort

8.1

Crew

8.7

Reviews

1 / 20

2.0
Mediocre

Anonymous,Feb 2025

MCO - STL

Cancelled at last minute, SWA unable to assist in formulating alternate plans. Wound up renting a car and driving 13 hours to beat bad weather forecast at home. Not SWA’s fault that there was significant bad weather across the country.

Delta
8.0
Very good
8,219 reviews
Southwest
8.1
Very good
4,411 reviews

Food

7.1

Boarding

8.2

Overall

8.1

Entertainment

7.6

Comfort

8.1

Crew

8.7

Reviews

1 / 20

2.0
Mediocre

Anonymous,Feb 2025

MCO - STL

Cancelled at last minute, SWA unable to assist in formulating alternate plans. Wound up renting a car and driving 13 hours to beat bad weather forecast at home. Not SWA’s fault that there was significant bad weather across the country.

JetBlue
7.4
Good
3,070 reviews
Southwest
8.1
Very good
4,411 reviews

Food

7.1

Boarding

8.2

Overall

8.1

Entertainment

7.6

Comfort

8.1

Crew

8.7

Reviews

1 / 20

2.0
Mediocre

Anonymous,Feb 2025

MCO - STL

Cancelled at last minute, SWA unable to assist in formulating alternate plans. Wound up renting a car and driving 13 hours to beat bad weather forecast at home. Not SWA’s fault that there was significant bad weather across the country.

United Airlines
7.4
Good
8,765 reviews
Southwest
8.1
Very good
4,411 reviews

Food

7.1

Boarding

8.2

Overall

8.1

Entertainment

7.6

Comfort

8.1

Crew

8.7

Reviews

1 / 20

2.0
Mediocre

Anonymous,Feb 2025

MCO - STL

Cancelled at last minute, SWA unable to assist in formulating alternate plans. Wound up renting a car and driving 13 hours to beat bad weather forecast at home. Not SWA’s fault that there was significant bad weather across the country.

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.

  • 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 $55. However, be on the lookout for offers from Spirit Airlines and American Airlines, 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

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Illinois to Maryland

See prices for flight routes from nearby airports that may be better suited for you.
John F Kennedy Intl to Miami flights
Newark to Fort Lauderdale flights
Newark to Miami flights
LaGuardia to Fort Lauderdale flights
LaGuardia to Miami flights
John F Kennedy Intl to Fort Lauderdale flights
John F Kennedy Intl to Los Angeles flights
Newark to Orlando flights
Los Angeles to John F Kennedy Intl flights
John F Kennedy Intl to Las Vegas flights
Newark to Los Angeles flights
John F Kennedy Intl to Orlando flights
Los Angeles to Newark flights
John F Kennedy Intl to West Palm Beach flights
LaGuardia to Dallas/Fort Worth flights
John F Kennedy Intl to Dallas/Fort Worth flights
O'Hare Intl to Fort Lauderdale flights
O'Hare Intl to Las Vegas flights
John F Kennedy Intl to O'Hare Intl flights
Dallas/Fort Worth to LaGuardia flights
LaGuardia to Orlando flights
Dallas/Fort Worth to Seattle flights
San Francisco to John F Kennedy Intl flights
Dallas/Fort Worth to Las Vegas flights
Newark to Las Vegas flights
Newark to Tampa flights
Boston to Fort Lauderdale flights
Seattle to Los Angeles flights
Newark to Dallas/Fort Worth flights
Dallas/Fort Worth to Orlando flights
O'Hare Intl to John F Kennedy Intl flights
O'Hare Intl to Miami flights
Seattle to Sky Harbor Intl flights
O'Hare Intl to Sky Harbor Intl flights
Dallas/Fort Worth to John F Kennedy Intl flights
John F Kennedy Intl to San Francisco flights
LaGuardia to Tampa flights
John F Kennedy Intl to Sky Harbor Intl flights
John F Kennedy Intl to Tampa flights
Reagan-National to Miami flights
Minneapolis to Sky Harbor Intl flights
Dulles Intl to Orlando flights
Seattle to Las Vegas flights
Minneapolis to Las Vegas flights
Los Angeles to Seattle flights
John F Kennedy Intl to Atlanta flights
Dallas/Fort Worth to Newark flights
San Francisco to Newark flights
Dulles Intl to Dallas/Fort Worth flights
Boston to Miami flights

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 February 20, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$66Average$154FlexibilityNo cancel feeOn-time62%
American AirlinesCheapest$119Average$394FlexibilityNo cancel feeOn-time71%
Spirit AirlinesCheapest$135Average$174FlexibilityNo cancel feeOn-time65%
SouthwestCheapest$138Average$273FlexibilityNo cancel feeOn-time63%
United AirlinesCheapest$162Average$325FlexibilityNo cancel feeOn-time69%
DeltaCheapest$176Average$270FlexibilityNo cancel feeOn-timeN/A
100% Free
Cheapflights is completely free to use, so you can start saving the moment you arrive.
Book with Flexibility
Our users can plan ahead with confidence and find flights with no change fees
Travel Smart
Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.