HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Baltimore

$59+ 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 3/26. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — BWI
Jan 26 — Feb 21
Sun 1/26
Sun 2/2
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Illinois to Baltimore 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 Baltimore

Discover tips and strategies to find the most affordable flight options for your journey from Illinois (USIL) to Baltimore (BWI). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated January 21, 2025.

Round-trip from

$113
(Mytrip)

One-way from

$59
(Expedia)
From Illinois to Baltimore/Washington
Search Deals
One-way flight from Illinois to Baltimore/Washington
Search Deals

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 January 21, 2025.

This Mytrip deal was found by Cheapflights users on 1/20. 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.
Sat 2/85:05 pmSTL - BWI
1 stop13h 46mFrontier
Tue 2/1110:10 amBWI - STL
1 stop14h 21mFrontier
Deal found 1/20$113
This Kiwi.com deal was found by Cheapflights users on 1/20. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 2/2412:43 pmMDW - BWI
1 stop17h 38mFrontier
Tue 2/255:42 pmBWI - MDW
1 stop22h 31mFrontier
Deal found 1/20$127
This Frontier deal was found by Cheapflights users on 1/20. 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.
Fri 2/215:46 pmORD - BWI
1 stop5h 57mFrontier
Thu 2/2712:17 pmBWI - ORD
1 stop10h 49mFrontier
Deal found 1/20$129
This Booking.com deal was found by Cheapflights users on 1/20. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/25:31 pmORD - BWI
1 stop6h 05mMultiple Airlines
Sat 5/104:15 pmBWI - ORD
1 stop7h 06mMultiple Airlines
Deal found 1/20$135
This Southwest deal was found by Cheapflights users on 1/20. 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.
Wed 3/57:00 amORD - BWI
Nonstop1h 55mSouthwest
Tue 3/118:40 pmBWI - ORD
Nonstop2h 20mSouthwest
Deal found 1/20$138
This FlightHub deal was found by Cheapflights users on 1/20. 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.
Thu 1/305:11 amORD - BWI
1 stop8h 24mSpirit Airlines
Sat 2/15:25 pmBWI - ORD
1 stop7h 07mSpirit Airlines
Deal found 1/20$156
This Southwest deal was found by Cheapflights users on 1/20. 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.
Tue 2/256:55 pmMDW - BWI
Nonstop1h 50mSouthwest
Fri 2/288:25 pmBWI - MDW
Nonstop2h 10mSouthwest
Deal found 1/20$157
This American Airlines deal was found by Cheapflights users on 1/20. 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.
Wed 2/268:15 amORD - BWI
Nonstop1h 55mAmerican Airlines
Mon 3/36:13 pmBWI - ORD
Nonstop2h 21mAmerican Airlines
Deal found 1/20$157
This United Airlines deal was found by Cheapflights users on 1/19. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 3/110:55 amORD - BWI
Nonstop1h 58mUnited Airlines
Mon 3/36:45 amBWI - ORD
Nonstop2h 20mUnited Airlines
Deal found 1/19$158
This CheapOair deal was found by Cheapflights users on 1/20. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 2/64:28 pmSTL - BWI
1 stop6h 31mMultiple Airlines
Mon 2/109:20 pmBWI - STL
1 stop27h 11mMultiple Airlines
Deal found 1/20$188
This Delta deal was found by Cheapflights users on 1/20. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 2/216:28 pmMDW - BWI
1 stop3h 40mDelta
Wed 2/2610:20 amBWI - MDW
1 stop7h 00mDelta
Deal found 1/20$197
This Delta deal was found by Cheapflights users on 1/20. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 2/214:58 pmORD - BWI
1 stop5h 10mDelta
Tue 3/412:26 pmBWI - ORD
1 stop4h 47mDelta
Deal found 1/20$197

Find flights from Illinois to Baltimore within your budget

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 January 21, 2025.

Fly from

Any airport

Fly to

Any airport

Route

Depart

Return

Price

St. LouisBaltimore

STL - BWI

STLBWI

Lambert-St Louis

Sat 2/8

5:05 pm-7:51 am

1 stop13h 46m

Baltimore/Washington

Tue 2/11

10:10 am-11:31 pm

1 stop14h 21m

$113

ChicagoBaltimore

MDW - BWI

MDWBWI

Chicago Midway

Mon 2/24

12:43 pm-7:21 am

1 stop17h 38m

Baltimore/Washington

Tue 2/25

5:42 pm-3:13 pm

1 stop22h 31m

$127

ChicagoBaltimore

ORD - BWI

ORDBWI

Chicago O'Hare Intl

Tue 2/18

5:36 pm-12:43 am

1 stop6h 07m

Baltimore/Washington

Tue 2/25

8:21 am-9:27 am

1 stop26h 06m

$127

ChicagoBaltimore

MDW - BWI

MDWBWI

Chicago Midway

Wed 3/5

8:10 am-11:00 am

Nonstop1h 50m

Baltimore/Washington

Tue 3/11

12:35 pm-1:40 pm

Nonstop2h 05m

$138

ChicagoBaltimore

ORD - BWI

ORDBWI

Chicago O'Hare Intl

Wed 2/12

5:40 pm-12:43 am

1 stop6h 03m

Baltimore/Washington

Sat 2/15

5:41 pm-11:58 pm

1 stop7h 17m

$143

ChicagoBaltimore

ORD - BWI

ORDBWI

Chicago O'Hare Intl

Tue 2/11

7:00 am-9:55 am

Nonstop1h 55m

Baltimore/Washington

Tue 2/18

8:05 pm-9:30 pm

Nonstop2h 25m

$148

ChicagoBaltimore

ORD - BWI

ORDBWI

Chicago O'Hare Intl

Thu 1/30

5:11 am-2:35 pm

1 stop8h 24m

Baltimore/Washington

Sat 2/1

5:25 pm-11:32 pm

1 stop7h 07m

$156

ChicagoBaltimore

ORD - BWI

ORDBWI

Chicago O'Hare Intl

Tue 2/11

5:50 pm-8:48 pm

Nonstop1h 58m

Baltimore/Washington

Wed 2/12

10:05 am-11:24 am

Nonstop2h 19m

$159

ChicagoBaltimore

ORD - BWI

ORDBWI

Chicago O'Hare Intl

Wed 2/19

8:15 am-11:10 am

Nonstop1h 55m

Baltimore/Washington

Wed 2/26

12:30 pm-1:47 pm

Nonstop2h 17m

$168

St. LouisBaltimore

STL - BWI

STLBWI

Lambert-St Louis

Thu 2/27

5:20 pm-7:21 am

1 stop13h 01m

Baltimore/Washington

Tue 3/4

5:25 am-2:42 pm

1 stop10h 17m

$171

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/20

Showing 1-10 of 49 results
1
2
3
...
5

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.

Travel insights for flights from Illinois to Baltimore

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

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 January 21, 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 January 21, 2025.

The most flights from USIL to BWI are scheduled on a Monday (19 on average). You will have fewer flight options on Friday, which is when the least amount of flights are scheduled (11 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 January 21, 2025.
Read through reviews of airlines operating flights from Illinois to Baltimore, such as Frontier, Southwest and Spirit Airlines. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Southwest
8.1
Very good
4,659 reviews

Comfort

8.1

Crew

8.7

Overall

8.1

Entertainment

7.7

Food

7.2

Boarding

8.2

Reviews

1 / 10

We BARELY made the connection and when we got onboard we were treated like disobedient children who should have arrived earlier because we had to ask other passengers to move so we could sit with our kids. The flight attendants on the first flight were nice but the second one, they were snippy and fairly rude.

Southwest
8.1
Very good
4,659 reviews
Southwest
8.1
Very good
4,659 reviews

Comfort

8.1

Crew

8.7

Overall

8.1

Entertainment

7.7

Food

7.2

Boarding

8.2

Reviews

1 / 10

We BARELY made the connection and when we got onboard we were treated like disobedient children who should have arrived earlier because we had to ask other passengers to move so we could sit with our kids. The flight attendants on the first flight were nice but the second one, they were snippy and fairly rude.

Delta
8.0
Very good
8,521 reviews
Southwest
8.1
Very good
4,659 reviews

Comfort

8.1

Crew

8.7

Overall

8.1

Entertainment

7.7

Food

7.2

Boarding

8.2

Reviews

1 / 10

We BARELY made the connection and when we got onboard we were treated like disobedient children who should have arrived earlier because we had to ask other passengers to move so we could sit with our kids. The flight attendants on the first flight were nice but the second one, they were snippy and fairly rude.

United Airlines
7.4
Good
8,982 reviews
Southwest
8.1
Very good
4,659 reviews

Comfort

8.1

Crew

8.7

Overall

8.1

Entertainment

7.7

Food

7.2

Boarding

8.2

Reviews

1 / 10

We BARELY made the connection and when we got onboard we were treated like disobedient children who should have arrived earlier because we had to ask other passengers to move so we could sit with our kids. The flight attendants on the first flight were nice but the second one, they were snippy and fairly rude.

American Airlines
7.2
Good
10,000 reviews
Southwest
8.1
Very good
4,659 reviews

Comfort

8.1

Crew

8.7

Overall

8.1

Entertainment

7.7

Food

7.2

Boarding

8.2

Reviews

1 / 10

We BARELY made the connection and when we got onboard we were treated like disobedient children who should have arrived earlier because we had to ask other passengers to move so we could sit with our kids. The flight attendants on the first flight were nice but the second one, they were snippy and fairly rude.

Sun Country Air
7.0
Good
386 reviews
Southwest
8.1
Very good
4,659 reviews

Comfort

8.1

Crew

8.7

Overall

8.1

Entertainment

7.7

Food

7.2

Boarding

8.2

Reviews

1 / 10

We BARELY made the connection and when we got onboard we were treated like disobedient children who should have arrived earlier because we had to ask other passengers to move so we could sit with our kids. The flight attendants on the first flight were nice but the second one, they were snippy and fairly rude.

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 Frontier ($59), Spirit Airlines ($63), and Southwest ($69).

  • 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: Qatar Airways (85%), United Airlines (84%), Envoy Air (83%).

  • What are the cheapest flights from Illinois to Baltimore?

    While on average a flight from Illinois to Baltimore is generally $304, our data shows the cheapest flight currently is $99. When looking at the most popular route, (Chicago O'Hare Intl - Baltimore/Washington), you can expect to pay $125 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

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 Baltimore

See prices for flight routes from nearby airports that may be better suited for you.
Los Angeles to Reagan-National flights
Dallas/Fort Worth to Dulles Intl flights
Los Angeles to Baltimore flights
Atlanta to Dulles Intl flights
Dallas/Fort Worth to Baltimore flights
Dallas/Fort Worth to Reagan-National flights
Boston to Dulles Intl flights
Los Angeles to Dulles Intl flights
Orlando to Dulles Intl flights
O'Hare Intl to Dulles Intl flights
San Francisco to Reagan-National flights
Miami to Reagan-National flights
Boston to Philadelphia flights
O'Hare Intl to Baltimore flights
Hobby to Baltimore flights
San Francisco to Dulles Intl flights
Hobby to Reagan-National flights
Boston to Reagan-National flights
O'Hare Intl to Philadelphia flights
Atlanta to Reagan-National flights
O'Hare Intl to Reagan-National flights
Orlando to Philadelphia flights
Tampa to Dulles Intl flights
Orlando to Reagan-National flights
Boston to Baltimore flights
Orlando to Baltimore flights
Seattle to Reagan-National flights
San Francisco to Baltimore flights
Minneapolis to Baltimore flights
Hobby to Dulles Intl flights
Denver to Dulles Intl flights
Minneapolis to Reagan-National flights
Denver to Baltimore flights
George Bush Intcntl to Dulles Intl flights
Minneapolis to Dulles Intl flights
Miami to Dulles Intl flights
Seattle to Dulles Intl flights
Denver to Reagan-National flights
Atlanta to Baltimore flights
San Francisco to Philadelphia flights
George Bush Intcntl to Reagan-National flights
Tampa to Reagan-National flights
Fort Lauderdale to Baltimore flights
Austin to Dulles Intl flights
George Bush Intcntl to Baltimore flights
Miami to Baltimore flights
Denver to Philadelphia flights
Detroit to Dulles Intl flights
Los Angeles to Philadelphia flights
Seattle to Baltimore flights

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 January 21, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$66Average$154FlexibilityNo cancel feeOn-time62%
American AirlinesCheapest$119Average$375FlexibilityNo cancel feeOn-time71%
Spirit AirlinesCheapest$135Average$174FlexibilityNo cancel feeOn-time65%
SouthwestCheapest$138Average$276FlexibilityNo cancel feeOn-time63%
United AirlinesCheapest$160Average$354FlexibilityNo cancel feeOn-time69%
DeltaCheapest$176Average$268FlexibilityNo 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.