St Louis to Baltimore (STL–BWI) — Airlines, Schedules & Connections

STL Airport Page →
736 mi airlines charter/private 32/wk
On-time Some delays Frequent delays
Flight Schedule 17 flights Verified 53m ago
Nonstop Charter / private 1-Stop 2-Stop Hide separate tickets Hide overnight Hide codeshares
  Flight Airline AC Dep Arr Dur OTP Sched  
✈ Nonstop
WN3898
WN Southwest
73H
5:10 AM
CDT T2
8:15 AM
EDT
2h 5m
49%
M T W T F S S
Prices
WN3894
WN Southwest
737
6:55 AM
CDT T2
9:42 AM
EDT
1h 47m
49%
M T W T F S S
Prices
WN1162
WN Southwest
7S7
7:15 AM
CDT T2
10:20 AM
EDT
2h 5m
49%
M T W T F S S
Prices
WN4614
WN Southwest
B38M
11:00 AM
CDT T2
2:05 PM
EDT
2h 5m
49%
M T W T F S S
Prices
WN793
WN Southwest
7M8
2:30 PM
CDT T2
5:35 PM
EDT
2h 5m
49%
M T W T F S S
Prices
WN2653
WN Southwest
7M8
5:10 PM
CDT T2
8:15 PM
EDT
2h 5m
49%
M T W T F S S
Prices
SY3008
SY Sun Country
738
5:48 PM
CDT
8:36 PM
EDT
1h 48m
M T W T F S S
Prices
WN1946
WN Southwest
7S7
6:20 PM
CDT T2
9:25 PM
EDT
2h 5m
49%
M T W T F S S
Prices
WN5059
WN Southwest
7M8
6:45 PM
CDT T2
9:45 PM
EDT
2h
49%
M T W T F S S
Prices
WN3897
WN Southwest
7M8
6:48 PM
CDT T2
9:36 PM
EDT
1h 48m
49%
M T W T F S S
Prices
WN1109
WN Southwest
737
6:38 AM
EDT
7:53 AM
CDT
2h 15m
53%
M T W T F S S
Prices
WN855
WN Southwest
73H
7:55 AM
EDT
9:10 AM
CDT
2h 15m
53%
M T W T F S S
Prices
WN1110
WN Southwest
7M8
9:25 AM
EDT
10:40 AM
CDT
2h 15m
53%
M T W T F S S
Prices
WN733
WN Southwest
737
10:15 AM
EDT
11:30 AM
CDT
2h 15m
53%
M T W T F S S
Prices
DL8887
DL Delta
6:30 PM
EDT
8:12 PM
CDT
2h 42m
M T W T F S S
Prices
WN1111
WN Southwest
7S7
7:00 PM
EDT
8:20 PM
CDT
2h 20m
53%
M T W T F S S
Prices
WN1118
WN Southwest
73H
9:55 PM
EDT
11:15 PM
CDT
2h 20m
53%
M T W T F S S
Prices

No flights match your filters.

No scheduled airline flights on this route — it's flown by charter / private operators (). No nonstop flights on this route. connecting options below.

✦ 1-Stop connections via 10 hubs
MDW Chicago 3h 40m LXJWN UAWN Chicago (MDW) to Baltimore flights
CMH Columbus 3h 40m WN WN Columbus (CMH) to Baltimore flights
CLE Cleveland 3h 45m WN WN Cleveland (CLE) to Baltimore flights
DTW Detroit 3h 50m AFDLKE AMDLF9 Detroit (DTW) to Baltimore flights
PIT Pittsburgh 3h 50m UAWN WN Pittsburgh (PIT) to Baltimore flights
RDU Raleigh/Durham 3h 50m WN WN Raleigh/Durham (RDU) to Baltimore flights
MKE Milwaukee 3h 55m WN WN Milwaukee (MKE) to Baltimore flights
BNA Nashville 4h WN WN Nashville (BNA) to Baltimore flights
ATL Atlanta 4h 15m AFAMDL 8CAFAM Atlanta (ATL) to Baltimore flights
MCI Kansas City 4h 15m WN SYWN Kansas City (MCI) to Baltimore flights
1-STOP More options, longer trips
2-STOP Loading... Reach the hardest destinations
St Louis to Baltimore
2 carriers, 32 flights/week nonstop.
2 Airlines 736 mi 2h 5m nonstop +1h ahead

STL–BWI is served by 2 airlines with nonstop service. Southwest Airlines and Sun Country Airlines lead the route. The flight covers 736 miles in approximately 2h 5m. Beyond nonstop, 1-stop connecting options are also available.

Airline Landscape

All carriers operating nonstop STL–BWI service, compared side by side.
Airline Freq/wk Aircraft Duration Dep OTP Alliance Codeshares
WN Southwest Airlines 30 737, 73H, 7M8, 7S7, B38M 1h47-2h05 100%
SY Sun Country Airlines 2 738 1h48 100%
Aircraft on this route
737 Boeing 737-700 – WN
738 Boeing 737-800 – SY
73H Boeing 737-800 (Winglets) – WN
7M8 Boeing 737 MAX 8 – WN
7S7 Boeing 737 MAX 7 – WN
B38M Boeing 737 MAX 8 – WN
Alliance coverage
Unaffiliated: SY + WN (32 flights/wk, 100%)
OTP based on airport-level delay snapshots. Duration ranges reflect seasonal/directional variation.

Weekly Schedule Pattern

Nonstop flight frequency by day of week, STL to BWI direction.
Mon
4
flights
Tue
4
flights
Wed
4
flights
Thu
4
flights
Fri
4
flights
Sat
6
flights
Sun
6
flights
Departure time distribution
12 AM6 AM12 PM6 PM12 AM
Morning departures
Afternoon/evening departures
10
Nonstop flights
32
Outbound / wk
28
Return / wk

Connection Landscape

Beyond nonstop. 1-stop and 2-stop options for STL to BWI.
1-STOP
One-Stop Connections
70
Hubs
~3h
Fastest
~20h
Longest
Verified with published schedule alignment and minimum connection time.
2-STOP
Two-Stop Connections
2,876
Candidates
Two-stop connections loaded in the connections tab above.
Connections computed from published schedules with minimum connection time verification. Use the interactive explorer above the fold to filter by airline, tier, and layover time.

On-Time Performance

What to expect at each end of your journey.
Outbound
STL → BWI
100%
Generally reliable. Most flights run on time.
Departing
100%
Arriving
67%
Return
BWI → STL
50%
Frequent delays expected. Consider flexible booking.
Departing
50%
Arriving
100%
OTP = percentage of flights arriving within 15 min of schedule. Based on airport-level delay snapshots. STL delays → BWI delays →

Travel Essentials

Practical planning for this route.
Time Difference
+1h
Baltimore is 1 hour ahead of St Louis.
STL: CDT · BWI: EDT

When it's 6:00 PM in St Louis, it's 7:00 PM in Baltimore.
Distance & Flight Time
736 mi / 1,184 km
Nonstop flight time is approximately 2h 5m gate to gate.

STL–BWI Quick Facts

Key statistics for the St Louis to Baltimore route.
Route details
Distance736 mi / 1,184 km
Flight time2h 5m
Time difference+1 hour
Airlines (nonstop)2
Weekly flights32 out / 28 return
1-stop connectionsAvailable
Origin: STL
IATA / ICAOSTL / KSTL
TimezoneAmerica/Chicago
Passengers/yr15.6M
Elevation618 ft / 188 m
Destination: BWI
IATA / ICAOBWI / KBWI
TimezoneAmerica/New_York
Passengers/yr26.4M
Elevation146 ft / 45 m

Frequently Asked Questions

Common questions about STL to BWI flights.
Nonstop flights from St. Louis Lambert International Airport to Baltimore/Washington International Thurgood Marshall Airport take about 2h 5m gate to gate. The route covers 736 miles.
2 airlines operate flights from STL to BWI: Southwest Airlines and Sun Country Airlines.
This route has daily service. Check the schedule above for departure days and times in each direction.
Yes, 1-stop connections are available, ranked by layover time. Common connecting points include Chicago Midway, John Glenn Columbus and Cleveland Hopkins.
Baltimore is 1 hour ahead of St Louis.
Yes, return flights from BWI to STL are available. Use the direction toggle at the top to view the return schedule.
Click the 'Search Flights' button to check availability and prices on Google Flights. You can also compare airlines and schedules on this page to find the best option.
See the On-Time Performance section for the latest delay data at both airports. This shows departure and arrival reliability to help you plan.
Route data is updated regularly from official airline schedules. On-time performance data comes from recent airport delay snapshots.

Flights from STL to BWI

St. Louis Lambert International Airport (STL) and Baltimore/Washington International Thurgood Marshall Airport (BWI) are connected by nonstop service from Southwest Airlines and Sun Country Airlines. With 32 weekly departures, this is a heavily served route.

STL to BWI Flight Duration and Schedule

Nonstop flight time from STL to BWI is about 2 hours 5 minutes gate to gate. The route covers a distance of 736 miles (1,184 km). There are approximately 32 weekly flights outbound and 28 return, totaling 60 flights per week in both directions.

Connecting Options and Alternatives

1-stop connecting options are also available, commonly via Chicago Midway, John Glenn Columbus and Cleveland Hopkins. Two-stop connections are also available via intermediate hubs.