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.

$56 CHEAP FLIGHTS from Illinois to Baltimore

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Flight Deals

Cheap Flights from Illinois to Baltimore

Discover the best prices for you by selecting your travel dates on KAYAK.

Round-trip

One-way

Last minute

Direct

Recent round-trip flight deals from Illinois to Baltimore

Wed, Sep 30 - Wed, Oct 7

2:29 pm - 9:30 pmSTL Lambert-St Louis-BWI Baltimore/Washington

6h 01m1 stop Atlanta Hartsfield-Jackson

6:38 am - 1:10 pmBWI Baltimore/Washington-STL Lambert-St Louis

7h 32m1 stop Atlanta Hartsfield-Jackson

$119Frontier

Fri, Sep 25 - Sun, Sep 27

6:20 am - 9:25 amORD Chicago O'Hare Intl-BWI Baltimore/Washington

2h 05mnonstop

10:20 am - 11:40 amBWI Baltimore/Washington-ORD Chicago O'Hare Intl

2h 20mnonstop

$122Frontier

Thu, Nov 12 - Mon, Nov 16

5:00 am - 11:45 amSTL Lambert-St Louis-BWI Baltimore/Washington

5h 45m1 stop Fort Lauderdale

4:50 pm - 7:25 pmBWI Baltimore/Washington-STL Lambert-St Louis

3h 35m1 stop Pittsburgh

$270Southwest

Thu, Dec 10 - Mon, Dec 14

4:20 pm - 9:45 pmSTL Lambert-St Louis-BWI Baltimore/Washington

4h 25m1 stop Nashville Intl

4:50 pm - 7:25 pmBWI Baltimore/Washington-STL Lambert-St Louis

3h 35m1 stop Pittsburgh

$270Southwest

Sat, Oct 3 - Mon, Oct 5

8:43 am - 1:57 pmSTL Lambert-St Louis-BWI Baltimore/Washington

4h 14m1 stop Charlotte Douglas

8:16 pm - 11:59 pmBWI Baltimore/Washington-STL Lambert-St Louis

4h 43m1 stop Charlotte Douglas

$275American Airlines

Tue, Oct 13 - Mon, Oct 19

10:22 am - 5:46 pmSTL Lambert-St Louis-BWI Baltimore/Washington

6h 24m1 stop Charlotte Douglas

5:48 pm - 11:59 pmBWI Baltimore/Washington-STL Lambert-St Louis

7h 11m1 stop Charlotte Douglas

$275American Airlines

Thu, Nov 26 - Tue, Dec 1

12:29 pm - 7:49 pmSTL Lambert-St Louis-BWI Baltimore/Washington

6h 20m1 stop Atlanta Hartsfield-Jackson

8:00 am - 1:28 pmBWI Baltimore/Washington-STL Lambert-St Louis

6h 28m1 stop Atlanta Hartsfield-Jackson

$275Delta

Tue, Oct 13 - Mon, Oct 19

6:47 am - 11:52 amSTL Lambert-St Louis-BWI Baltimore/Washington

4h 05m1 stop Detroit Metropolitan Wayne County

7:40 pm - 11:54 pmBWI Baltimore/Washington-STL Lambert-St Louis

5h 14m1 stop Atlanta Hartsfield-Jackson

$275Delta

Thu, Oct 22 - Mon, Oct 26

7:45 pm - 8:57 pmORD Chicago O'Hare Intl-BWI Baltimore/Washington

24h 12m2 stops Minneapolis St Paul Orlando

9:58 am - 11:21 amBWI Baltimore/Washington-ORD Chicago O'Hare Intl

2h 23mnonstop

$285Multiple Airlines

Thu, Oct 29 - Sun, Nov 1

10:26 am - 4:44 pmORD Chicago O'Hare Intl-BWI Baltimore/Washington

5h 18m1 stop Atlanta Hartsfield-Jackson

5:40 am - 5:10 pmBWI Baltimore/Washington-ORD Chicago O'Hare Intl

12h 30m2 stops Atlanta Hartsfield-Jackson Minneapolis St Paul

$289Multiple Airlines

Recent last minute flight deals from Illinois to Baltimore

Fri, Sep 11 - Sat, Sep 12

6:20 am - 9:25 amORD Chicago O'Hare Intl-BWI Baltimore/Washington

2h 05mnonstop

8:45 pm - 10:02 pmBWI Baltimore/Washington-ORD Chicago O'Hare Intl

2h 17mnonstop

$160Frontier

Thu, Sep 10 - Sat, Sep 12

6:20 am - 9:25 amORD Chicago O'Hare Intl-BWI Baltimore/Washington

2h 05mnonstop

8:45 pm - 10:02 pmBWI Baltimore/Washington-ORD Chicago O'Hare Intl

2h 17mnonstop

$161Frontier

Sat, Sep 12 - Tue, Sep 15

6:15 pm - 9:29 pmORD Chicago O'Hare Intl-BWI Baltimore/Washington

2h 14mnonstop

5:35 pm - 6:55 pmBWI Baltimore/Washington-ORD Chicago O'Hare Intl

2h 20mnonstop

$279United Airlines

Wed, Sep 9 - Thu, Sep 10

10:49 am - 1:58 pmORD Chicago O'Hare Intl-BWI Baltimore/Washington

2h 09mnonstop

6:05 am - 7:26 amBWI Baltimore/Washington-ORD Chicago O'Hare Intl

2h 21mnonstop

$311United Airlines

Thu, Sep 10 - Sat, Sep 12

7:55 pm - 10:50 pmMDW Chicago Midway-BWI Baltimore/Washington

1h 55mnonstop

3:40 pm - 4:40 pmBWI Baltimore/Washington-MDW Chicago Midway

2h 00mnonstop

$311Southwest

Fri, Sep 11 - Sat, Sep 12

7:55 pm - 10:50 pmMDW Chicago Midway-BWI Baltimore/Washington

1h 55mnonstop

7:30 pm - 8:35 pmBWI Baltimore/Washington-MDW Chicago Midway

2h 05mnonstop

$311Southwest

Thu, Sep 10 - Sat, Sep 12

11:50 am - 5:41 pmORD Chicago O'Hare Intl-BWI Baltimore/Washington

4h 51m1 stop Charlotte Douglas

10:38 am - 2:20 pmBWI Baltimore/Washington-ORD Chicago O'Hare Intl

4h 42m1 stop Charlotte Douglas

$331American Airlines

Sat, Sep 12 - Sat, Sep 19

6:20 am - 4:46 pmORD Chicago O'Hare Intl-BWI Baltimore/Washington

9h 26m1 stop Atlanta Hartsfield-Jackson

9:25 pm - 7:13 pmBWI Baltimore/Washington-ORD Chicago O'Hare Intl

22h 48m2 stops Atlanta Hartsfield-Jackson Minneapolis St Paul

$357Multiple Airlines

Wed, Sep 9 - Sat, Sep 19

9:56 am - 1:05 pmORD Chicago O'Hare Intl-BWI Baltimore/Washington

2h 09mnonstop

6:00 am - 7:29 amBWI Baltimore/Washington-ORD Chicago O'Hare Intl

2h 29mnonstop

$359American Airlines

Wed, Sep 9 - Sat, Sep 19

3:50 pm - 8:31 amORD Chicago O'Hare Intl-BWI Baltimore/Washington

15h 41m1 stop Orlando

9:25 pm - 7:13 pmBWI Baltimore/Washington-ORD Chicago O'Hare Intl

22h 48m2 stops Atlanta Hartsfield-Jackson Minneapolis St Paul

$363Multiple Airlines

Recent direct flight deals from Illinois to Baltimore

Fri, Sep 25 - Sun, Sep 27

6:20 am - 9:25 amORD Chicago O'Hare Intl-BWI Baltimore/Washington

2h 05mnonstop

10:20 am - 11:40 amBWI Baltimore/Washington-ORD Chicago O'Hare Intl

2h 20mnonstop

$122Frontier

Thu, Sep 24 - Sun, Sep 27

6:20 am - 9:25 amORD Chicago O'Hare Intl-BWI Baltimore/Washington

2h 05mnonstop

10:20 am - 11:40 amBWI Baltimore/Washington-ORD Chicago O'Hare Intl

2h 20mnonstop

$124Frontier

Thu, Oct 1 - Sat, Oct 3

6:20 am - 9:25 amORD Chicago O'Hare Intl-BWI Baltimore/Washington

2h 05mnonstop

5:03 pm - 6:27 pmBWI Baltimore/Washington-ORD Chicago O'Hare Intl

2h 24mnonstop

$124Frontier

Tue, Oct 20 - Sat, Oct 24

6:30 pm - 9:25 pmMDW Chicago Midway-BWI Baltimore/Washington

1h 55mnonstop

3:10 pm - 4:10 pmBWI Baltimore/Washington-MDW Chicago Midway

2h 00mnonstop

$299Southwest

Thu, Oct 1 - Thu, Oct 8

7:35 pm - 10:20 pmMDW Chicago Midway-BWI Baltimore/Washington

1h 45mnonstop

6:15 am - 7:15 amBWI Baltimore/Washington-MDW Chicago Midway

2h 00mnonstop

$299Southwest

Sat, Oct 10 - Wed, Oct 14

2:45 pm - 5:58 pmORD Chicago O'Hare Intl-BWI Baltimore/Washington

2h 13mnonstop

11:40 am - 12:59 pmBWI Baltimore/Washington-ORD Chicago O'Hare Intl

2h 19mnonstop

$299American Airlines

Mon, Dec 21 - Thu, Dec 24

1:19 pm - 4:27 pmORD Chicago O'Hare Intl-BWI Baltimore/Washington

2h 08mnonstop

6:21 am - 8:00 amBWI Baltimore/Washington-ORD Chicago O'Hare Intl

2h 39mnonstop

$299American Airlines

Thu, Oct 15 - Sat, Oct 17

7:30 am - 10:30 amORD Chicago O'Hare Intl-BWI Baltimore/Washington

2h 00mnonstop

9:09 am - 10:29 amBWI Baltimore/Washington-ORD Chicago O'Hare Intl

2h 20mnonstop

$299United Airlines

Thu, Oct 22 - Sat, Oct 24

7:30 am - 10:30 amORD Chicago O'Hare Intl-BWI Baltimore/Washington

2h 00mnonstop

9:09 am - 10:29 amBWI Baltimore/Washington-ORD Chicago O'Hare Intl

2h 20mnonstop

$299United Airlines

Tue, Nov 3 - Mon, Nov 9

6:15 pm - 9:05 pmMDW Chicago Midway-BWI Baltimore/Washington

1h 50mnonstop

7:05 pm - 8:10 pmBWI Baltimore/Washington-MDW Chicago Midway

2h 05mnonstop

$299Southwest

Useful Info

Low season	January
High season	October
Cheapest flight	$56

Best time to beat the crowds with an average 1% drop in price.

Most popular time to fly and prices are also 17% lower on average.

Flight from St. Louis 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.