Frontier's UpFront Plus seats guarantee an empty middle seat for added comfort.
Early morning flights have a better chance of on-time departure and arrival.

Most accurate provider | Justfly.com 3 stars |
|---|---|
Most trusted provider | Justfly.com 3 stars |
Round-trip from | $117 (Kiwi.com) |
One-way from | $57 (Cheapflightsfares) |
Popular in | March |
Cheapest in | September |
Average price | $242 |
Fly from
Fly to
Route
Depart
Return
Price
BaltimoreChicago
BWI - MDW
BWIMDW
Baltimore/Washington
Thu 2/5
10:55 am-12:05 pm
Nonstop2h 10m
Chicago Midway
Mon 2/9
7:05 pm-9:55 pm
Nonstop1h 50m
BaltimoreChicago
BWI - MDW
BWIMDW
Baltimore/Washington
Thu 1/8
4:20 pm-6:35 pm
1 stop3h 15m
Chicago Midway
Sat 1/10
5:40 pm-8:30 pm
Nonstop1h 50m
BaltimoreChicago
BWI - MDW
BWIMDW
Baltimore/Washington
Wed 11/19
4:45 pm-5:50 pm
Nonstop2h 05m
Chicago Midway
Wed 11/19
6:55 pm-9:45 pm
Nonstop1h 50m
BaltimoreChicago
BWI - ORD
BWIORD
Baltimore/Washington
Sat 1/17
6:15 am-12:15 pm
1 stop7h 00m
Chicago O'Hare Intl
Sun 1/18
11:55 am-8:35 pm
1 stop7h 40m
BaltimoreChicago
BWI - MDW
BWIMDW
Baltimore/Washington
Wed 12/31
11:20 am-2:05 pm
1 stop3h 45m
Chicago Midway
Thu 1/1
6:55 pm-9:45 pm
Nonstop1h 50m
BaltimoreChicago
BWI - MDW
BWIMDW
Baltimore/Washington
Wed 12/31
6:00 am-8:49 am
1 stop3h 49m
Chicago Midway
Thu 1/1
6:00 am-12:55 pm
1 stop5h 55m
BaltimoreChicago
BWI - ORD
BWIORD
Baltimore/Washington
Sun 12/7
10:20 am-11:28 am
Nonstop2h 08m
Chicago O'Hare Intl
Thu 12/11
6:09 pm-9:08 pm
Nonstop1h 59m
BaltimoreChicago
BWI - MDW
BWIMDW
Baltimore/Washington
Sun 1/18
6:00 am-8:54 am
1 stop3h 54m
Chicago Midway
Mon 1/19
6:17 pm-12:45 am
1 stop5h 28m
BaltimoreChicago
BWI - ORD
BWIORD
Baltimore/Washington
Wed 12/3
5:18 pm-6:26 pm
Nonstop2h 08m
Chicago O'Hare Intl
Sat 12/6
2:30 pm-5:24 pm
Nonstop1h 54m
BaltimoreChicago
BWI - ORD
BWIORD
Baltimore/Washington
Mon 11/24
6:00 am-10:01 am
1 stop5h 01m
Chicago O'Hare Intl
Thu 11/27
11:19 am-5:17 pm
1 stop4h 58m
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy2 stars | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*1 star | |
| Price Accuracy1 star | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy2 stars | Trust Score*2 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy2 stars | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*2 stars | |
| Price Accuracy- | Trust Score*1 star |
To ensure you get the cheapest price possible for a flight from Baltimore to Chicago, you should look to book at least 84 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.
Currently, March is the cheapest month in which you can book a flight from Baltimore to Chicago (average of $50). Flying from Baltimore to Chicago in June is currently the most expensive (average of $132). 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.
Unlike at noon, when flights are generally more expensive, you can save up to 64% on flights from Baltimore to Chicago by exploring options for tickets in the evening.
Travelers seeking maximum savings on their Baltimore to Chicago flight should consider departing on Friday evenings when fares are most often at their lowest. Tuesday at noon flights should be avoided if possible as fares are typically the most expensive at this time.
Boarding
Crew
Comfort
Entertainment
Overall
Food
Reviews
Mike,Aug 2025
OKC - AUS
Boarding
Crew
Comfort
Entertainment
Overall
Food
Reviews
Mike,Aug 2025
OKC - AUS
Boarding
Crew
Comfort
Entertainment
Overall
Food
Reviews
Mike,Aug 2025
OKC - AUS
Boarding
Crew
Comfort
Entertainment
Overall
Food
Reviews
Mike,Aug 2025
OKC - AUS
Boarding
Crew
Comfort
Entertainment
Overall
Food
Reviews
Mike,Aug 2025
OKC - AUS
Boarding
Crew
Comfort
Entertainment
Overall
Food
Reviews
Mike,Aug 2025
OKC - AUS
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$52 | Average$124 | FlexibilityNo cancel fee | On-time65% | |
| Cheapest$68 | Average$169 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$98 | Average$328 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$157 | Average$293 | FlexibilityNo cancel fee | On-time63% | |
| Cheapest$158 | Average$307 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$166 | Average$312 | FlexibilityNo cancel fee | On-time71% |