St Louis to Pittsburgh (STL–PIT) — Airlines, Schedules & Connections

STL Airport Page →
552 mi airlines charter/private 15/wk
On-time Some delays Frequent delays
Flight Schedule 8 flights Verified 55m ago
Also flown by charter / private operators.
Nonstop Charter / private 1-Stop 2-Stop Hide separate tickets Hide overnight Hide codeshares
  Flight Airline AC Dep Arr Dur OTP Sched  
✈ Nonstop
✓
→
WN3971
WN Southwest
7M8
10:05 AM
CDT T2
12:40 PM
EDT
1h 35m
49%
M T W T F S S
Prices
✓
→
WN2252
WN Southwest
73H
10:20 AM
CDT T2
12:55 PM
EDT
1h 35m
49%
M T W T F S S
Prices
✓
→
WN383
WN Southwest
7S7
10:25 AM
CDT T2
1:00 PM
EDT
1h 35m
49%
M T W T F S S
Prices
✓
→
WN2525
WN Southwest
73H
10:30 AM
CDT T2
1:05 PM
EDT
1h 35m
49%
M T W T F S S
Prices
✓
→
WN3972
WN Southwest
73H
7:55 PM
CDT T2
10:30 PM
EDT
1h 35m
49%
M T W T F S S
Prices
✓
→
UA3783
UA United
7M9
10:45 PM
CDT T1
1:15 AM+1
EDT
1h 30m
55%
M T W T F S S
Prices
✓
←
WN3386
WN Southwest
737
6:45 AM
EDT
7:30 AM
CDT
1h 45m
—
M T W T F S S
Prices
✓
←
WN3387
WN Southwest
737
7:45 PM
EDT
8:30 PM
CDT
1h 45m
—
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 28m LXJWN → WN Chicago (MDW) to Pittsburgh flights
BNA Nashville 3h 30m WN → G4WN Nashville (BNA) to Pittsburgh flights
DTW Detroit 3h 34m AFDLKE → AMDLKE Detroit (DTW) to Pittsburgh flights
ORD Chicago 3h 59m AAACAS → AAACAS Chicago (ORD) to Pittsburgh flights
MKE Milwaukee 4h 2m WN → DL Milwaukee (MKE) to Pittsburgh flights
BWI Baltimore 4h 2m SYWN → WN Baltimore (BWI) to Pittsburgh flights
ATL Atlanta 4h 9m AFAMDL → AFAMDL Atlanta (ATL) to Pittsburgh flights
DCA Washington 4h 18m AAWN → AAAS Washington (DCA) to Pittsburgh flights
PHL Philadelphia 4h 22m AAEIWN → AAAS Philadelphia (PHL) to Pittsburgh flights
CLT Charlotte 4h 22m AABALXJ → AA Charlotte (CLT) to Pittsburgh flights
✦ 1-STOP More options, longer trips
✧ 2-STOP Loading... Reach the hardest destinations
St Louis to Pittsburgh
2 carriers, 15 flights/week nonstop.
2 Airlines 552 mi 1h 35m nonstop +1h ahead

STL–PIT is served by 2 airlines with nonstop service. Southwest Airlines and United Airlines lead the route. The flight covers 552 miles in approximately 1h 35m. Beyond nonstop, 1-stop connecting options are also available.

Also explore STL Routes PIT Routes STL Live Flights PIT Live Flights STL Delays PIT Delays
All flights from Pittsburgh (PIT) Pittsburgh to St Louis flights
Carriers on this route

Airline Landscape

All carriers operating nonstop STL–PIT service, compared side by side.
Airline Freq/wk Aircraft Duration Dep OTP Alliance Codeshares
WN Southwest Airlines 14 73H, 7M8, 7S7 1h35 100% – –
UA United Airlines 1 7M9 1h30 100% Star Alliance –
Aircraft on this route
73H Boeing 737-800 (Winglets) – WN
7M8 Boeing 737 MAX 8 – WN
7M9 Boeing 737 MAX 9 – UA
7S7 Boeing 737 MAX 7 – WN
Alliance coverage
Unaffiliated: WN (14 flights/wk, 93%)
Star Alliance: UA (1 flights/wk, 7%)
OTP based on airport-level delay snapshots. Duration ranges reflect seasonal/directional variation.
Schedule

Weekly Schedule Pattern

Nonstop flight frequency by day of week, STL to PIT direction.
Mon
2
flights
Tue
2
flights
Wed
2
flights
Thu
3
flights
Fri
2
flights
Sat
2
flights
Sun
2
flights
Departure time distribution
12 AM6 AM12 PM6 PM12 AM
Morning departures
Afternoon/evening departures
6
Nonstop flights
15
Outbound / wk
15
Return / wk
Connections

Connection Landscape

Beyond nonstop. 1-stop and 2-stop options for STL to PIT.
1-STOP
One-Stop Connections
61
Hubs
~3h
Fastest
~28h
Longest
MDW ~3h 28m BNA ~3h 30m DTW ~3h 34m ORD ~3h 59m MKE ~4h 2m
Verified with published schedule alignment and minimum connection time.
2-STOP
Two-Stop Connections
2,342
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.
Reliability

On-Time Performance

What to expect at each end of your journey.
Outbound
STL → PIT
100%
Generally reliable. Most flights run on time.
Departing
100%
Arriving
50%
Return
PIT → STL
100%
Generally reliable. Most flights run on time.
Departing
100%
Arriving
100%
OTP = percentage of flights arriving within 15 min of schedule. Based on airport-level delay snapshots. STL delays → PIT delays →
Know before you go

Travel Essentials

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

When it's 6:00 PM in St Louis, it's 7:00 PM in Pittsburgh.
Distance & Flight Time
552 mi / 889 km
Nonstop flight time is approximately 1h 35m gate to gate.
Facts

STL–PIT Quick Facts

Key statistics for the St Louis to Pittsburgh route.
Route details
Distance552 mi / 889 km
Flight time1h 35m
Time difference+1 hour
Airlines (nonstop)2
Weekly flights15 out / 15 return
1-stop connectionsAvailable
Origin: STL
Full nameSt. Louis Lambert International Airport
IATA / ICAOSTL / KSTL
TimezoneAmerica/Chicago
Passengers/yr15.6M
Elevation618 ft / 188 m
Destination: PIT
Full namePittsburgh International Airport
IATA / ICAOPIT / KPIT
TimezoneAmerica/New_York
Passengers/yr9.7M
Elevation1,203 ft / 367 m
FAQ

Frequently Asked Questions

Common questions about STL to PIT flights.
Nonstop flights from St. Louis Lambert International Airport to Pittsburgh International Airport take about 1h 35m gate to gate. The route covers 552 miles.
2 airlines operate flights from STL to PIT: Southwest Airlines and United 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, Nashville and Detroit Metropolitan Wayne County.
Pittsburgh is 1 hour ahead of St Louis.
Yes, return flights from PIT 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 PIT

St. Louis Lambert International Airport (STL) and Pittsburgh International Airport (PIT) are connected by nonstop service from Southwest Airlines and United Airlines. With 15 weekly departures, this is a well served route.

STL to PIT Flight Duration and Schedule

Nonstop flight time from STL to PIT is about 1 hours 35 minutes gate to gate. The route covers a distance of 552 miles (889 km). There are approximately 15 weekly flights outbound and 15 return, totaling 30 flights per week in both directions.

Connecting Options and Alternatives

1-stop connecting options are also available, commonly via Chicago Midway, Nashville and Detroit Metropolitan Wayne County. Two-stop connections are also available via intermediate hubs.