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

STL Airport Page →
736 mi airlines 28/wk
On-time Some delays Frequent delays
Flight Schedule 17 flights Verified 45m ago
Nonstop 1-Stop 2-Stop Hide separate tickets Hide overnight Hide codeshares
  Flight Airline AC Dep Arr Dur OTP Sched  
✈ Nonstop
WN4440
WN Southwest
B38M
5:43 AM
CDT T2
8:28 AM
EDT
1h 45m
M T W T F S S
Prices
WN1769
WN Southwest
7S7
8:20 AM
CDT T2
11:25 AM
EDT
2h 5m
M T W T F S S
Prices
WN3518
WN Southwest
73H
9:20 AM
CDT T2
12:25 PM
EDT
2h 5m
M T W T F S S
Prices
WN3461
WN Southwest
73H
11:00 AM
CDT T2
2:05 PM
EDT
2h 5m
M T W T F S S
Prices
WN2098
WN Southwest
7S7
11:15 AM
CDT T2
2:15 PM
EDT
2h
M T W T F S S
Prices
WN4340
WN Southwest
73H
1:05 PM
CDT T2
4:10 PM
EDT
2h 5m
M T W T F S S
Prices
WN2737
WN Southwest
737
1:15 PM
CDT T2
4:20 PM
EDT
2h 5m
M T W T F S S
Prices
WN3144
WN Southwest
737
4:00 PM
CDT T2
7:05 PM
EDT
2h 5m
M T W T F S S
Prices
WN4442
WN Southwest
737
6:45 PM
CDT T2
9:45 PM
EDT
2h
M T W T F S S
Prices
WN1555
WN Southwest
7S7
8:00 PM
CDT T2
11:00 PM
EDT
2h
M T W T F S S
Prices
WN1333
WN Southwest
B38M
6:10 AM
EDT
7:30 AM
CDT
2h 20m
M T W T F S S
Prices
WN1565
WN Southwest
73H
8:35 AM
EDT
10:00 AM
CDT
2h 25m
M T W T F S S
Prices
WN1335
WN Southwest
B38M
9:30 AM
EDT
10:50 AM
CDT
2h 20m
M T W T F S S
Prices
WN2496
WN Southwest
7S7
9:45 AM
EDT
11:05 AM
CDT
2h 20m
M T W T F S S
Prices
WN1337
WN Southwest
B38M
1:55 PM
EDT
3:15 PM
CDT
2h 20m
M T W T F S S
Prices
WN987
WN Southwest
7S7
6:20 PM
EDT
7:45 PM
CDT
2h 25m
M T W T F S S
Prices
WN1358
WN Southwest
7M8
7:00 PM
EDT
8:25 PM
CDT
2h 25m
M T W T F S S
Prices

No flights match your filters.

No nonstop flights on this route. connecting options below.

1-STOP More options, longer trips
2-STOP Loading... Reach the hardest destinations
St Louis to Baltimore
1 carrier, 28 flights/week nonstop.
1 Airlines 28 Flights/wk 736 mi 1h 45m nonstop +1h ahead 99 1-stop hubs

STL–BWI is served by 1 airline with nonstop service. Southwest Airlines leads the route. The flight covers 736 miles in approximately 1h 45m. Beyond nonstop, 99 hubs offer 1-stop connections.

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 28 737, 73H, 7S7, B38M 1h45-2h05 100%
Aircraft on this route
737 Boeing 737-700 – WN
73H Boeing 737-800 (Winglets) – WN
7S7 Boeing 737 MAX 7 – WN
B38M Boeing 737 MAX 8 – WN
Alliance coverage
Unaffiliated: WN (28 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
3
flights
Thu
4
flights
Fri
4
flights
Sat
3
flights
Sun
6
flights
Departure time distribution
12 AM6 AM12 PM6 PM12 AM
Morning departures
Afternoon/evening departures
10
Nonstop flights
28
Outbound / wk
26
Return / wk

Connection Landscape

Beyond nonstop. 1-stop and 2-stop options for STL to BWI.
1-STOP
One-Stop Connections
99
Hubs
~3h
Fastest
~21h
Longest
Verified with published schedule alignment and minimum connection time.
2-STOP
Two-Stop Connections
2,693
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.

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 1h 45m to 2h 5m.

STL–BWI Quick Facts

Key statistics for the St Louis to Baltimore route.
Route details
Distance736 mi / 1,184 km
Flight time1h 45m to 2h 5m
Time difference+1 hour
Airlines (nonstop)1
Weekly flights28 out / 26 return
1-stop connections99 hubs
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 approximately 1h 45m to 2h 5m. The route covers 736 miles.
1 airline operates nonstop service: Southwest Airlines.
There are approximately 28 nonstop flights per week from STL to BWI. The return direction has about 26 weekly flights.
Yes, 1-stop connections are available through IND, MMU, TEB, LAN, MKC, YYZ, LEX, DCA, DSM, BHM, ACY, EWR, LUK, TTN, YIP, LGA, FRG, BDL, PDK, CVG, SYR, FOK, AGS, AFW, YUL, ILM, RIC, BED, APF, GRR, ISM, PBI, ELH, VPS, FXE, MLB, BCT, NAS, SUA, BIF, CHS, TMB, ASE, BZN, GCM, SBD, SCF, MBJ, SJU, SJD, BFI, SJC, CUN, ONT, SNA, ABQ, ATL, BNA, SLC, ORD, MDW, DTW, MSP, SMF, DAL, CLT, MSY, RSW, PIT, MCI, RDU, CMH, HOU, TPA, CLE, SAN, MKE, BOS, JAX, DEN, MIA, IAH, DFW, ECP, MCO, SRQ, PHX, LHR, FLL, PDX, AUS, SAV, SFO, MYR, LAX, PUJ, SAT, SEA and LAS. These options provide additional schedule flexibility.
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. With 28 weekly departures, this is a heavily served route.

STL to BWI Flight Duration and Schedule

Nonstop flight time from STL to BWI ranges from 1 hours 45 minutes to 2 hours 5 minutes. The route covers a distance of 736 miles (1,184 km). There are approximately 28 weekly flights outbound and 26 return, totaling 54 flights per week in both directions.

Connecting Options and Alternatives

99 one-stop connections are available, with the fastest taking approximately 3 hours via IND. Two-stop connections are also available via intermediate hubs.