Expect security screening at STL to take 5-10 minutes during off-peak times. Check real-time wait times online before heading to the airport.
Round-trip from | $135 (FlightHub) |
---|---|
One-way from | $65 (Cheapflightsfares) |
Popular in | December |
Cheapest in | September |
Average price | $328 |
Fly from
Fly to
Route
Depart
Return
Price
St. LouisBaltimore
STL - BWI
STLBWI
Lambert-St Louis
Thu 8/14
2:30 pm-10:09 pm
1 stop6h 39m
Baltimore/Washington
Sat 8/16
2:30 pm-1:32 pm
1 stop24h 02m
St. LouisBaltimore
STL - BWI
STLBWI
Lambert-St Louis
Fri 8/8
3:53 pm-9:42 pm
1 stop4h 49m
Baltimore/Washington
Thu 8/14
7:45 pm-11:55 pm
1 stop5h 10m
St. LouisBaltimore
STL - BWI
STLBWI
Lambert-St Louis
Thu 10/2
5:55 am-8:55 am
Nonstop2h 00m
Baltimore/Washington
Mon 10/6
7:30 pm-8:45 pm
Nonstop2h 15m
St. LouisBaltimore
STL - BWI
STLBWI
Lambert-St Louis
Tue 8/19
6:40 am-11:38 am
1 stop3h 58m
Baltimore/Washington
Thu 8/21
7:00 am-12:31 pm
1 stop6h 31m
St. LouisBaltimore
STL - BWI
STLBWI
Lambert-St Louis
Sat 7/19
2:52 pm-11:55 pm
1 stop8h 03m
Baltimore/Washington
Sun 7/27
7:20 am-1:34 pm
1 stop7h 14m
St. LouisBaltimore
STL - BWI
STLBWI
Lambert-St Louis
Thu 9/18
2:30 pm-10:08 pm
1 stop6h 38m
Baltimore/Washington
Sun 9/21
6:27 pm-9:06 am
1 stop15h 39m
St. LouisBaltimore
STL - BWI
STLBWI
Lambert-St Louis
Sun 9/7
2:30 pm-10:08 pm
1 stop6h 38m
St. LouisBaltimore
STL - BWI
STLBWI
Lambert-St Louis
Thu 10/23
11:02 am-4:33 pm
1 stop4h 31m
St. LouisBaltimore
STL - BWI
STLBWI
Lambert-St Louis
Sat 9/20
6:27 am-1:58 pm
1 stop6h 31m
St. LouisBaltimore
STL - BWI
STLBWI
Lambert-St Louis
Wed 8/20
11:10 am-4:10 pm
1 stop4h 00m
Booking 75 days in advance of your planned departure date is, on average, the best time to get cheap flights from St. Louis to Baltimore. The general trend is that the closer you book to the departure date, the more expensive your flight will be.
Currently, August is the cheapest month in which you can book a flight from St. Louis to Baltimore (average of $241). Flying from St. Louis to Baltimore in March is currently the most expensive (average of $290). 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 St. Louis to Baltimore at noon. Doing so could potentially save you 4% on the flight price compared to flying in the morning, which is usually more expensive.
Travelers seeking maximum savings on their St. Louis to Baltimore flight should consider departing on Thursday at noon when fares are most often at their lowest. Saturday afternoons flights should be avoided if possible as fares are typically the most expensive at this time.
Crew
Overall
Entertainment
Food
Boarding
Comfort
Reviews
John,May 2025
PVD - BNA
Crew
Overall
Entertainment
Food
Boarding
Comfort
Reviews
John,May 2025
PVD - BNA
Crew
Overall
Entertainment
Food
Boarding
Comfort
Reviews
John,May 2025
PVD - BNA
Crew
Overall
Entertainment
Food
Boarding
Comfort
Reviews
John,May 2025
PVD - BNA
Crew
Overall
Entertainment
Food
Boarding
Comfort
Reviews
John,May 2025
PVD - BNA
Crew
Overall
Entertainment
Food
Boarding
Comfort
Reviews
John,May 2025
PVD - BNA
Airline | Cheapest | Average | Flexibility | On-time |
---|---|---|---|---|
Cheapest$120 | Average$218 | FlexibilityNo cancel fee | On-time62% | |
Cheapest$166 | Average$325 | FlexibilityNo cancel fee | On-time71% | |
Cheapest$176 | Average$289 | FlexibilityNo cancel fee | On-timeN/A | |
Cheapest$201 | Average$374 | FlexibilityNo cancel fee | On-time63% | |
Cheapest$232 | Average$376 | FlexibilityNo cancel fee | On-time69% |