BWI

$47 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

KAYAK searches hundreds of travel sites at once for deals on flights to Baltimore

Travelers love KAYAK
41,299,237 searches in the past 7 days on KAYAK

Save 23% or moreCompare multiple travel sites with one search.

Track pricesNot ready to book? Create a price alert for when prices drop.

Bundle and saveSave money when you bundle your flight + hotel.

Filter your dealsChoose cabin class, free Wi-Fi and more.

Everything you should know

Cheapest round-trip
$86
Overall average: $263
Frontier
Tue 12/23Tue 12/30
ORD - BWI • Non-stop
Cheapest one-way
$47
Typical prices: $162-$394
Frontier
Tue 12/23
STL - BWI • 1 stop
Start a new search
KAYAK searches 100s of sites at once to find you the best travel deals.
We hope you love your trip to Baltimore!
Flight Deals
Useful Info
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

Tue, Dec 23 - Tue, Dec 30
Frontier Logo
5:35 am - 8:42 amORD-BWI
2h 07mnonstop
Frontier Logo
9:37 am - 10:55 amBWI-ORD
2h 18mnonstop
$86Frontier
Find Deal
Thu, Feb 19 - Sun, Feb 22
Multiple Airlines Logo
10:18 am - 8:32 pmORD-BWI
9h 14m1 stop
Multiple Airlines Logo
8:58 am - 10:22 amBWI-ORD
2h 24mnonstop
$87Multiple Airlines
Find Deal
Tue, Dec 23 - Tue, Dec 30
Frontier Logo
6:00 am - 12:29 amORD-BWI
17h 29m1 stop
Frontier Logo
9:37 am - 10:55 amBWI-ORD
2h 18mnonstop
$90Frontier
Find Deal
Wed, Dec 3 - Sun, Dec 7
Multiple Airlines Logo
6:48 am - 1:21 pmORD-BWI
5h 33m1 stop
Multiple Airlines Logo
9:13 am - 10:31 amBWI-ORD
2h 18mnonstop
$96Multiple Airlines
Find Deal
Sun, Feb 8 - Wed, Feb 11
American Airlines Logo
2:50 pm - 5:52 pmORD-BWI
2h 02mnonstop
American Airlines Logo
6:00 am - 7:30 amBWI-ORD
2h 30mnonstop
$119American Airlines
Find Deal
Fri, Jan 23 - Thu, Feb 5
Spirit Airlines Logo
10:18 am - 8:32 pmORD-BWI
9h 14m1 stop
Spirit Airlines Logo
5:44 pm - 7:01 pmBWI-ORD
2h 17mnonstop
$134Spirit Airlines
Find Deal
Thu, Dec 11 - Sun, Jan 11
American Airlines Logo
2:09 pm - 10:12 pmSTL-BWI
7h 03m1 stop
American Airlines Logo
9:17 am - 3:04 pmBWI-STL
6h 47m1 stop
$149American Airlines
Find Deal
Wed, Nov 12 - Sat, Nov 15
Southwest Logo
6:55 pm - 9:45 pmMDW-BWI
1h 50mnonstop
Southwest Logo
11:20 am - 12:25 pmBWI-MDW
2h 05mnonstop
$159Southwest
Find Deal
Fri, Dec 5 - Sun, Dec 7
Southwest Logo
12:55 pm - 3:40 pmMDW-BWI
1h 45mnonstop
Southwest Logo
7:45 am - 8:50 amBWI-MDW
2h 05mnonstop
$170Southwest
Find Deal
Sun, Nov 16 - Sat, Nov 22
Spirit Airlines Logo
6:21 pm - 10:38 amSTL-BWI
15h 17m1 stop
Spirit Airlines Logo
7:09 pm - 10:03 amBWI-STL
15h 54m1 stop
$196Spirit Airlines
Find Deal
Useful Info

Good to know

Low seasonFebruary
Cheapest flight$47
Best time to beat the crowds but there is an average 3% increase in price.
Most popular time to fly with an average 7% increase in price.
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)

Not what you’re looking for? Find thousands of other hotels, flights, car rentals and package deals with KAYAK.