BWI

$42 Find Cheap Flights from Illinois to Baltimore

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight to Baltimore departing on 12/23. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy, 0 bags

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Everything you should know

Cheapest round-trip
$92
Overall average: $244
Frontier
Sat 11/29Fri 12/5
ORD - BWI • Non-stop
Cheapest one-way
$42
Typical prices: $159-$379
Frontier
Tue 12/23
STL - BWI • 1 stop
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Flight Deals
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Flight Deals

Cheap Flights from Illinois to Baltimore

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Illinois to Baltimore that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Illinois to Baltimore

Sat, Nov 29 - Fri, Dec 5
Frontier Logo
5:20 am - 8:19 amORD-BWI
1h 59mnonstop
Frontier Logo
3:36 pm - 4:54 pmBWI-ORD
2h 18mnonstop
$92Frontier
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Mon, Dec 15 - Sun, Dec 28
Frontier Logo
6:30 pm - 9:37 pmORD-BWI
2h 07mnonstop
Frontier Logo
3:36 pm - 4:54 pmBWI-ORD
2h 18mnonstop
$93Frontier
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Wed, Nov 26 - Tue, Dec 2
Multiple Airlines Logo
12:25 pm - 3:21 pmMDW-BWI
1h 56mnonstop
Multiple Airlines Logo
6:29 pm - 8:46 amBWI-MDW
15h 17m1 stop
$108Multiple Airlines
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Sun, Dec 21 - Wed, Dec 24
Multiple Airlines Logo
10:57 am - 12:34 amSTL-BWI
12h 37m1 stop
Multiple Airlines Logo
2:05 pm - 9:40 amBWI-STL
20h 35m2 stops
$143Multiple Airlines
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Tue, Mar 24 - Tue, Mar 31
United Airlines Logo
2:45 pm - 9:42 pmPIA-BWI
5h 57m1 stop
United Airlines Logo
6:30 am - 10:02 amBWI-PIA
4h 32m1 stop
$249United Airlines
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Sat, Feb 21 - Tue, Feb 24
Delta Logo
5:00 pm - 12:39 amMLI-BWI
6h 39m1 stop
Delta Logo
4:45 pm - 10:32 pmBWI-MLI
6h 47m1 stop
$249Delta
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Thu, Dec 18 - Thu, Jan 8
American Airlines Logo
5:43 pm - 11:43 pmMLI-BWI
5h 00m1 stop
American Airlines Logo
2:46 pm - 9:58 pmBWI-MLI
8h 12m2 stops
$254American Airlines
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Sun, Dec 21 - Sun, Dec 28
American Airlines Logo
5:00 am - 1:05 pmPIA-BWI
7h 05m1 stop
American Airlines Logo
8:15 pm - 11:56 pmBWI-PIA
4h 41m1 stop
$264American Airlines
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Fri, Dec 19 - Fri, Jan 2
United Airlines Logo
10:47 am - 4:58 pmMLI-BWI
5h 11m1 stop
United Airlines Logo
6:15 am - 10:12 amBWI-MLI
4h 57m1 stop
$309United Airlines
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Tue, Dec 23 - Wed, Dec 31
Delta Logo
4:58 pm - 12:43 amMLI-BWI
6h 45m1 stop
Delta Logo
4:49 pm - 10:30 pmBWI-MLI
6h 41m1 stop
$318Delta
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Good to know

Low seasonFebruary
Cheapest flight$42
Most popular time to fly and prices are also 5% lower on average.
Flight from St. Louis to Baltimore

FAQs for booking flights from Illinois to Baltimore

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

    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 Illinois to Baltimore.

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Baltimore from 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 Illinois to Baltimore?

    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 to Baltimore with an airline and back to Illinois with another airline.

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

    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 to Baltimore from Illinois up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Everything you need to know for your flight to Baltimore

Information on the airport you'll fly into in Baltimore

Baltimore (BWI)