$43 Find Cheap Flights from Maryland to Illinois

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Low seasonJanuary
High seasonAugust
Cheapest flight$43
Best time to beat the crowds with an average 4% drop in price.
Most popular time to fly and prices are also 14% lower on average.
Flight from Baltimore to Chicago O'Hare Airport

FAQs for booking flights from Maryland to Illinois

  • How does KAYAK find such low prices on flights from Maryland to Illinois?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Maryland to Illinois.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Maryland to Illinois?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight from Maryland to Illinois is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Maryland to Illinois?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly from Maryland to Illinois with an airline and back with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Maryland to Illinois?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying from Maryland to Illinois up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

  • Which is the cheapest airport to fly into in Illinois?

    Prices will differ depending on the departure airport, but generally, the cheapest airport to fly to in Illinois is Chicago Midway Airport (MDW), with an average flight price of $150.

  • What is the cheapest day to fly to Illinois?

    Based on KAYAK data, the cheapest day to fly to Illinois is Friday where round-trip tickets can be as cheap as $308. On the other hand, the most expensive day to fly is Sunday, where round-trip prices are $625 on average.

  • What is the cheapest time of day to fly to Illinois?

    The cheapest time of day to fly to Illinois is generally in the evening, when round-trip flights cost $247 on average. Morning departures are around 96% more expensive than evening flights, on average. The most expensive time of day to fly to Illinois is generally in the morning, which is peak travel time and where the average cost of a ticket is $484.

  • What is the cheapest flight to Illinois?

    The cheapest ticket to Illinois from Maryland found in the last 72 hours was to Chicago Midway Airport, at $116 round-trip. The most popular route is Baltimore (BWI) to Chicago Midway Airport (MDW) and the cheapest round-trip airline ticket found on this route in the last 72 hours was $116.

  • What is the cheapest month to fly from Maryland to Illinois?

    The cheapest month for flights from Maryland to Illinois is January, when tickets cost $232 (return) on average. On the other hand, the most expensive months are March and February, when the average cost of round-trip tickets is $338 and $320 respectively.

  • How far in advance should I book a flight from Maryland to Illinois?

    To get a below average price on the flight from Maryland to Illinois, you should book around 4 weeks before departure. For the absolute cheapest price, our data suggests you should book 6 weeks before departure.

  • How long is the flight to Illinois?

    An average nonstop flight from Maryland to Illinois takes 7h 14m, covering a distance of 677 miles. The shortest route is Washington, D.C. Reagan-National Airport (DCA) to Chicago Midway Airport (MDW) with an average flight time of 1h 55m.

  • What are the most popular destinations in Illinois?

    Based on KAYAK flight searches, the most popular destination is Chicago (97% of total searches to Illinois). The next most popular destinations are Peoria (1%) and Moline (1%). Searches for flights to Evansville (0%), to Springfield (0%) and to Bloomington (0%) are also popular.

Reviews of the top 5 airlines serving from Maryland to Illinois

 
Need help choosing which airline to fly with from Maryland to Illinois? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
8.0
SouthwestOverall score based on 4244 reviews
8.6Crew
8.1Boarding
7.6Entertainment
8.0Comfort
7.0Food
Airline reviews

It was okay. The plane was delayed from earlier in the day, but they kept updating the departure time, sometimes later, sometimes earlier. That was stressful. Once we finally got on and took off, it was fine. I was supposed to have a connection in Chicago to Los Angeles, and the time for so late I was rebooked to arrive in LA 3 hours late. The departure time to Chicago later became early enough to have taken my original connection and arrive earlier but that wasn't an option.

6.0 GoodAnonymous, Jul 2025BDL - MDW
Read more Southwest reviews

It was okay. The plane was delayed from earlier in the day, but they kept updating the departure time, sometimes later, sometimes earlier. That was stressful. Once we finally got on and took off, it was fine. I was supposed to have a connection in Chicago to Los Angeles, and the time for so late I was rebooked to arrive in LA 3 hours late. The departure time to Chicago later became early enough to have taken my original connection and arrive earlier but that wasn't an option.

Everything was on time. I was disappointed by the front section female, African American flight attendant. I did not see her name tag or would have identified by name not race. As passengers moved to the bathroom early in flight, she would say with a disdainful tone “I have to say the seat belt light is on” then go back to her book. Better trained flight attendants say something like be careful the seat belt light is on.

Southwest is typically delayed, and it gets wearisome. It is no longer a discount airline and you get way less than you pay for when it comes to comfort and Ce.

Staff was far less than helpful at all times. Departure and arrival times mean nothing to Southwest. Extremely disappointed, will never fly with them again, and I’ll be sure to share my experience with all.

The seats were a bit cramped and worn, but otherwise okay.

Short flight with plenty of open seats. Drinks and snacks were still provided even on such a short flight. <1 hr

Flight was awfully bumpy and landing was a bit jolting. I was in the restroom when snacks and drinks were served and was not asked if i wanted any. I had to ask for water finally.

I like that it was on time and the staff was friendly.

No space for our carryon and needed to check at plane before boarding !

The crew was dutiful but seemed detached and bored. The boarding process is ineffective. No reason I shouldn’t be able to sit with my wife. I checked in at the first available minute and still got boarding tow “C”. Southwest used to be my first choice due to value. But no longer. Southwest is like traveling in a cattle car. Suggestion: be the first to make Wi-Fi free!

Overall it was good. I missed my connection but I was put on another flight.

Overall a very poor experience - booked premium economy tickets but due to last minute flight delays , all my itinery went for a toss and had to fly economy class with no access to lounge or any compensation by united airlines to make up for the flight delays . i had expected better experience than that from united.

It was fine, definitely older planes with no charging or anything. There’s no entertainment set up on board, but it is nice that they allow you to access the in flight entertainment from your phone without having to pay for the Wi-Fi and they do offer free texting.

I liked that the flight was nonstop from ORD to CIU for $200 round trip.

The schedule to Moline changed 5 times. The gate changed 6 times. That is a pathetic way to run an airline. No wonder that no one in our company flies on United Express to or from Moline. Changes happen most of the time. I learned my lesson on this trip…never again!

While the staff was pleasant and helpful, the following observations are for your awareness. There was some delay on the tarmac on take off and landing. The paid lunch/food offerings were limited. Entertainment was only available on WiFi at a cost.

The first flight was better in terms of the aircraft.

Smooth flight. Boarding was chaotic. Could not hear the gate agent over the intercom. People were lined up in the wrong lines. Groups one and two were told to board through line one and group 3 through line 2. All very confusing. Once in the air, the flight was smooth. There was no entertainment option on this aircraft, even though it was a larger aircraft.

Overall poor for me I paid extra for seats with leg room and my regional flights exit row seats have less leg room then the others that's money that could have been saved and on my final flight home the flights air was not operating it was unbearably hot in the cabin I will be contacting United and filing a DOT complaint

There's just no way to sit fully upright and comfortably in these seats. There needs to be 2 more inches of room, and that's not something that only one person on the flight needs - the whole flight needs 2 more inches of room. If that means you sell 6 less seats, so be it. It's too close for anyone. Forcing people to pay for "premium" economy just to get "barely enough space to breathe" isn't really an answer to that.

The flight was fine and the crew awesome. The problem is ORD and AA. Computers went down, ORD fell apart and a 40 min flight turned into a 3 hour trip. Guess the answer is to not try and fly to ORD after noon. But, as I said, crew was awesome and did everything they could to lesson the flight time.

The flight was fine but the 8 hour delay in Chicago was awful - 5 gate changes and repeated delays without an explanation. No vouchers. Nothing.

Most miserable flight ever. We waited almost 2 hours on the runway because the flight was oversold. American offered $1200 credit. Then there was some nonsense about weight distribution. Ridiculous. No food for 8 plus hours on the flight. I will be writing a letter.

The flight was 2 hour delayed, otherwise everything was excellent. The delay was due to the hourly limit requirement so given that as a reason, I'm happy with the flight!

Not sure the logic of the boarding in Groups. I was loaded first on the aisle. Then the guy in the middle. Then the guy by the window. Constantly holding up the other people boarding behind them with us blocking the aisle and this happened in most of the other rows

To start, I’d like to say that every American Airline personnel I interacted with on the ground, especially flight crew, was very friendly and did their best to help me out. Despite this, however, my experience with the airline was an entire mess. The 7:19 PM flight was heavily delayed due to weather, and pushed to 10:30 AM the next morning. Because of this, I had to spend the night inside of the airport. At some point later in the night, I got an email saying that the flight had been canceled. I called the support number, and the representative on the other line told me that the flight was still on and that I didn’t need to rebook. The next morning, no one came to the gate to open the door for the crew until almost 11 AM. By this time the flight crew had been waiting for over an hour, and they had called management to get someone to open the door for them multiple times. Around 11:30, the gate screen had changed to a different flight. I ended up buying a last minute ticket with Southwest airline just to get to Chicago, because the next flight with American wasn’t until 7:19 pm that day. Now, earlier that morning my suitcase had been sent ahead of me to ORD. I went to baggage claim to ask them if I could have my suitcase forwarded to where I was staying. The representative at SDF baggage claim said they could and put the claim in for me. As I was going back through TSA, I got an email that the airline had found my suitcase, but the next step was to send it BACK to SDF. I called the airline support number again, and I made it clear that my suitcase needed to stay in Chicago and to not come back to SDF. The representative told me that they would hold my suitcase at ORD and that it wasn’t going to be forwarded anywhere. Once I got there, I found that they had loaded my suitcase onto a plane to send it back to SDF. Thankfully, I had gotten to the baggage claim counter in time for them to put in a request to bring my suitcase back up. My refund with the airline is processing already, but because of this entire experience and miscommunication at every turn of the way, I will not book with American Airlines in the future.

The plane was late and then sat on the runway for almost 45 minutes before taking off.

Crew professional. Easy bag drop off. On time. Good entertainment.

Everything was great. Boarding, early departure, early arrival, and deplaning were smooth. Smooth flight.

Per usual, flight status, staff courtesy and professionalism were excellent

Booked through kayak, everything seemed normal but when it came time to go, my flight ticket didn’t exist, so I had to purchase another set of tickets at the airport the day of the flight, for about double. When I reached kayaks customer service, they claimed no responsibility, and pushed me onto another 3rd party booking service, airfare assist, where I have had no luck getting any kind of help or refund. I’ve used kayak many times, but I’ll never again after I’ve been burned by this.

The air fares are good, Charging me for every single thing 😩

I wanted to upgrade my seat because I’m 6’2 and never have enough leg room for my comfort. They upgraded my seat for free putting me in an emergency exit seat. I was very comfortable

Horrible considering I didn’t go and I bought travel insurance and I didn’t receive a refund.

While on the flight we had a delay and had to sit on the plane while maintenance fixed it. It’s ended up taking an hour and a half longer to leave than expected. I had an unruly passenger sitting behind me that vaped during the flight and was rude and loud for the majority of the flight.

The flight, the pilot, the flight crew, and the ground personnel were all great, despite the sudden and lengthy FAA Ground Stop in Boston, which SPIRIT obviously had nothing to do with and no control over.

Spirit is by far the worst airline to travel with, period. Seats are cardboard, flight attendants need anger management and if you ask for water, you’re basically a criminal. I don’t care how much it costs but I will travel with an airline who actually cares about their customers. Oh and one more thing, the next time your gate agent puts his foot on someone’s baggage's scale, I hope they get what’s coming next, a viral video of your scams. You suck Spirit, do better.

I mean, it’s Spirit. But it was frustrating to have our flight canceled, get bumped to a later flight, and then Spirit was unwilling to check our bag until 4 hours before our flight… tell us we could not sit in the waiting area’s chairs… and really negative experience getting checked in and dropping the bag.

Not having it be changed after we bought the flight tickets from a direct flight getting in at a reasonable time to a connecting flight red eye of 9 hours, so that we would lose our 35 dollars in nonrefundable insurance would've been great! Our country really does need low-cost carrier options, but this type of "service" ain't it. Fortunately, had a little better success with them flying to and from San Juan PR last month at least.

terrible service, no room for a dog underfoot, a broken chair that is impossible to sit on and all this costs a lot of money

Late, terrible communication, horrible planning of passenger seating until the literal last minute. One of the worst flying experiences of my life. Y'all suck

Both legs of the flight were changed. The day of the flight and length of the trip.

First of all, we never got on the connecting flight to Denver. They delayed our flight for two hours. If we would have gotten on that flight, we would have been stuck in Denver for 13 hours. So we re- routed our flight for a straight through flight to Oklahoma two days later. THEN, they delayed that flight for two hours. After that we were able to finally get on our flight and come home. Frontier Airlines - one of the worst airlines I have ever been on.

Terrible communication with weather delay, lost baggage, near impossible to reach customer service

My tickets got canceled on me by your site and I didn't have a flight. Then you kept sending me emails on the status of q flight I didn't have tickets for.

The delay was ridiculous because nary a word escaped from the gate attendant regarding our flight status. It was a complete joke.

I missed a flight because of a delay. I had to buy a new ticket through Southwest.

The crew was mostly okay. The flight attendant who answered our questions was curt and unhelpful unfortunately. He seemed upset and I understand having off days.

Flight was delayed one hour. Notification to the crowd waiting near the gate was terrible…announcements were unclear and very hard to hear and therefore understand. Frontier does NOT send texts to notify, only email. The reader board over the gate itself was NEVER updated to indicate the gate had been changed. It’s like a bunch of children are running things.

I’m not gonna fly Frontier Airlines because booking is not an option. No water or food is for high price, not equipped for health emergency incompetent crew for emergency services. Cheap airline shows it is cheaper in all service categories. Boarding is the best of all airlines!

Book cheap flights from Maryland to Illinois

Recent round-trip flight deals

9/21Sun
nonstopSpirit Airlines
2h 13mBWI-ORD
9/25Thu
nonstopSpirit Airlines
1h 52mORD-BWI
$82
9/18Thu
nonstopSpirit Airlines
2h 13mBWI-ORD
9/21Sun
nonstopSpirit Airlines
1h 52mORD-BWI
$83
10/2Thu
nonstopFrontier
2h 21mBWI-ORD
10/6Mon
nonstopFrontier
2h 03mORD-BWI
$93
9/19Fri
nonstopFrontier
2h 21mBWI-ORD
9/22Mon
nonstopFrontier
2h 03mORD-BWI
$105
9/9Tue
nonstopSouthwest
2h 00mBWI-MDW
9/27Sat
nonstopSouthwest
1h 50mMDW-BWI
$139
8/27Wed
nonstopUnited Airlines
2h 14mBWI-ORD
9/3Wed
nonstopUnited Airlines
2h 03mORD-BWI
$139
8/16Sat
nonstopSouthwest
2h 05mPHL-MDW
8/19Tue
nonstopSouthwest
2h 00mMDW-PHL
$141
8/13Wed
nonstopUnited Airlines
2h 24mPHL-ORD
8/26Tue
nonstopUnited Airlines
2h 12mORD-PHL
$141
8/23Sat
nonstopAmerican Airlines
2h 17mBWI-ORD
8/25Mon
nonstopAmerican Airlines
2h 19mORD-BWI
$148
8/14Thu
nonstopAmerican Airlines
2h 25mPHL-ORD
8/19Tue
nonstopAmerican Airlines
2h 04mORD-PHL
$149

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Recent one-way flight deals

9/18Thu
nonstopSpirit Airlines
2h 13mBWI-ORD
$43
8/31Sun
nonstopSpirit Airlines
2h 06mBWI-ORD
$45
10/13Mon
nonstopFrontier
2h 31mPHL-ORD
$48
10/13Mon
nonstopFrontier
2h 15mPHL-MDW
$48
8/27Wed
nonstopSouthwest
2h 00mBWI-MDW
$70
8/27Wed
nonstopUnited Airlines
2h 15mBWI-ORD
$70
8/13Wed
nonstopSouthwest
2h 10mPHL-MDW
$71
11/8Sat
nonstopUnited Airlines
2h 20mPHL-ORD
$71
11/17Mon
nonstopAmerican Airlines
2h 19mBWI-ORD
$78
8/6Wed
nonstopAmerican Airlines
2h 26mPHL-ORD
$79

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Last minute flights from Maryland to Illinois

Last minute flight, train and bus deals

7/19Sat
multi-stopFrontier
6h 08mPHL-ORD
7/21Mon
nonstopFrontier
2h 26mORD-PHL
$155
7/19Sat
multi-stopFrontier
18h 05mPHL-MDW
8/1Fri
nonstopFrontier
2h 05mMDW-PHL
$159
7/15Tue
multi-stopSpirit Airlines
10h 46mBWI-ORD
7/15Tue
multi-stopSpirit Airlines
6h 13mORD-BWI
$182
7/15Tue
multi-stopSpirit Airlines
10h 46mBWI-ORD
7/17Thu
multi-stopSpirit Airlines
12h 49mORD-BWI
$184
7/19Sat
nonstopUnited Airlines
2h 25mPHL-ORD
7/26Sat
nonstopUnited Airlines
2h 15mORD-PHL
$284
7/19Sat
multi-stopSouthwest
7h 30mPHL-MDW
7/26Sat
nonstopSouthwest
1h 55mMDW-PHL
$294
7/19Sat
nonstopSouthwest
2h 15mPHL-MDW
7/26Sat
nonstopSouthwest
1h 55mMDW-PHL
$319
7/15Tue
multi-stopAmerican Airlines
4h 08mDCA-ORD
7/15Tue
nonstopAmerican Airlines
1h 54mORD-DCA
$442
7/19Sat
multi-stopAmerican Airlines
4h 44mDCA-ORD
7/19Sat
nonstopAmerican Airlines
1h 56mORD-DCA
$448
7/15Tue
nonstopUnited Airlines
2h 16mDCA-ORD
7/16Wed
nonstopUnited Airlines
1h 58mORD-DCA
$499

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Everything you need to know for your flight to Illinois

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