For a quick departure from ORD, take the "L" train from downtown Chicago to avoid traffic delays.

Most accurate provider | CheapOair 3 stars |
|---|---|
Most trusted provider | CheapOair 3 stars |
Round-trip from | $95 (CheapOair) |
One-way from | $50 (Frontier) |
Popular in | March |
Cheapest in | September |
Average price | $255 |
Fly from
Fly to
Route
Depart
Return
Price
ChicagoBaltimore
ORD - BWI
ORDBWI
Chicago O'Hare Intl
Sun 12/14
5:11 am-8:18 am
Nonstop2h 07m
Baltimore/Washington
Thu 12/18
10:40 am-7:02 pm
1 stop9h 22m
ChicagoBaltimore
ORD - BWI
ORDBWI
Chicago O'Hare Intl
Wed 11/19
5:10 am-3:47 pm
1 stop9h 37m
Baltimore/Washington
Sun 11/23
7:30 am-5:11 pm
1 stop10h 41m
ChicagoBaltimore
ORD - BWI
ORDBWI
Chicago O'Hare Intl
Thu 12/25
6:02 pm-11:31 pm
1 stop4h 29m
Baltimore/Washington
Mon 1/19
4:45 pm-8:59 pm
1 stop5h 14m
ChicagoBaltimore
ORD - BWI
ORDBWI
Chicago O'Hare Intl
Sat 12/6
2:30 pm-5:24 pm
Nonstop1h 54m
Baltimore/Washington
Tue 12/9
5:18 pm-6:26 pm
Nonstop2h 08m
ChicagoBaltimore
ORD - BWI
ORDBWI
Chicago O'Hare Intl
Fri 1/9
11:05 am-4:40 pm
1 stop4h 35m
Baltimore/Washington
Tue 1/13
6:00 am-9:40 am
1 stop4h 40m
ChicagoBaltimore
ORD - BWI
ORDBWI
Chicago O'Hare Intl
Tue 12/9
2:30 pm-5:25 pm
Nonstop1h 55m
Baltimore/Washington
Wed 12/10
10:20 am-11:28 am
Nonstop2h 08m
ChicagoBaltimore
ORD - BWI
ORDBWI
Chicago O'Hare Intl
Tue 1/6
6:08 pm-11:07 pm
1 stop3h 59m
Baltimore/Washington
Tue 1/13
5:25 pm-9:04 pm
1 stop4h 39m
ChicagoBaltimore
ORD - BWI
ORDBWI
Chicago O'Hare Intl
Tue 12/9
10:55 am-1:50 pm
Nonstop1h 55m
Baltimore/Washington
Thu 12/11
10:20 am-11:28 am
Nonstop2h 08m
ChicagoBaltimore
ORD - BWI
ORDBWI
Chicago O'Hare Intl
Sat 12/6
10:55 am-1:50 pm
Nonstop1h 55m
Baltimore/Washington
Sun 12/7
5:18 pm-6:26 pm
Nonstop2h 08m
ChicagoBaltimore
ORD - BWI
ORDBWI
Chicago O'Hare Intl
Thu 12/25
6:02 pm-11:31 pm
1 stop4h 29m
Baltimore/Washington
Thu 1/1
6:00 am-11:50 am
1 stop6h 50m
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy2 stars | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*1 star | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy- | 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 Accuracy2 stars | Trust Score*3 stars | |
| Price Accuracy- | Trust Score*1 star |
The best time to book flights from Chicago O'Hare Intl Airport to Baltimore is 71 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.
Currently, July is the cheapest month in which you can book a flight from Chicago O'Hare Intl Airport to Baltimore (average of $59). Flying from Chicago O'Hare Intl Airport to Baltimore in March is currently the most expensive (average of $177). 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.
It’s typically best to fly out from Chicago O'Hare Intl Airport to Baltimore in the morning. Doing so could potentially save you 6% on the flight price compared to flying in the afternoon, which is usually more expensive.
Travelers seeking maximum savings on their Chicago O'Hare Intl Airport to Baltimore flight should consider departing on Friday afternoons when fares are most often at their lowest. Sunday afternoons flights should be avoided if possible as fares are typically the most expensive at this time.
About 18% of weekly flights between Chicago and Baltimore have experienced delays in the past year, with the average delay time being 133 minutes.
Historically, flights departing in the morning are less likely to be delayed, whereas flights leaving in the evening tend to experience delays more often.
Tuesday tends to have the lowest number of delays on this route, whereas Friday has historically faced a higher average of delays compared to other days of the week.
Over the last year, Braathens Regional Aviation have had the lowest number of delays on this route, with no flights being classified as delayed.
Comfort
Entertainment
Boarding
Overall
Crew
Food
Reviews
Mike,Aug 2025
OKC - AUS
Comfort
Entertainment
Boarding
Overall
Crew
Food
Reviews
Mike,Aug 2025
OKC - AUS
Comfort
Entertainment
Boarding
Overall
Crew
Food
Reviews
Mike,Aug 2025
OKC - AUS
Comfort
Entertainment
Boarding
Overall
Crew
Food
Reviews
Mike,Aug 2025
OKC - AUS
Comfort
Entertainment
Boarding
Overall
Crew
Food
Reviews
Mike,Aug 2025
OKC - AUS
Comfort
Entertainment
Boarding
Overall
Crew
Food
Reviews
Mike,Aug 2025
OKC - AUS
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$45 | Average$147 | FlexibilityNo cancel fee | On-time65% | |
| Cheapest$63 | Average$146 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$143 | Average$296 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$147 | Average$284 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$157 | Average$263 | FlexibilityNo cancel fee | On-time63% |