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

PIT Airport Page →
552 mi airlines 26/wk
On-time Some delays Frequent delays
Flight Schedule 11 flights Verified 36m ago
Nonstop 1-Stop 2-Stop Hide separate tickets Hide overnight
  Flight Airline AC Dep Arr Dur OTP Sched  
WN1190
WN Southwest
737
6:40 AM
EDT
7:35 AM
EDT
1h 55m
M T W T F S S
Prices
WN4639
WN Southwest
73H
6:50 AM
EDT
7:40 AM
EDT
1h 50m
M T W T F S S
Prices
WN3263
WN Southwest
738
6:50 AM
EDT
7:45 AM
EDT
1h 55m
M T W T F S S
Prices
WN1687
WN Southwest
7S7
7:05 PM
EDT
8:00 PM
EDT
1h 55m
M T W T F S S
Prices
WN3945
WN Southwest
7M8
7:10 PM
EDT
8:00 PM
EDT
1h 50m
M T W T F S S
Prices
WN3750
WN Southwest
B38M
7:40 PM
EDT
8:30 PM
EDT
1h 50m
M T W T F S S
Prices
WN1502
WN Southwest
7M8
8:05 PM
EDT
8:55 PM
EDT
1h 50m
M T W T F S S
Prices
WN2074
WN Southwest
7S7
1:08 PM
EDT T2
3:39 PM
EDT
2h 31m
M T W T F S S
Prices
WN8860
WN Southwest
6:12 PM
EDT
8:39 PM
EDT
2h 27m
M T W T F S S
Prices
WN2620
WN Southwest
7S7
6:45 PM
EDT T2
9:20 PM
EDT
1h 35m
M T W T F S S
Prices
WN2338
WN Southwest
737
7:40 PM
EDT T2
10:15 PM
EDT
1h 35m
M T W T F S S
Prices

No flights match your filters.

No nonstop flights on this route. connecting options below.

1-STOP
2-STOP Loading...
Pittsburgh to St Louis
2 carriers, 26 flights/week nonstop.
2 Airlines 26 Flights/wk 552 mi 1h 50m nonstop 68 1-stop hubs

PIT–STL is served by 2 airlines with nonstop service. Southwest Airlines and Delta Air Lines lead the route. The flight covers 552 miles in approximately 1h 50m. Beyond nonstop, 68 hubs offer 1-stop connections.

Airline Landscape

All carriers operating nonstop PIT–STL service, compared side by side.
Airline Freq/wk Aircraft Duration Dep OTP Alliance Codeshares
WN Southwest Airlines 26 737, 738, 73H, 7M8, 7S7, B38M 1h50-1h55 40%
DL Delta Air Lines 0 40% SkyTeam
Aircraft on this route
737 Boeing 737-700 – WN
738 Boeing 737-800 – WN
73H Boeing 737-800 – WN
7M8 Boeing 737 MAX 8 – WN
7S7 Boeing 737 MAX 7 – WN
B38MWN
Alliance coverage
Unaffiliated: WN (26 flights/wk, 100%)
SkyTeam: DL (0 flights/wk, 0%)
OTP based on airport-level delay snapshots. Duration ranges reflect seasonal/directional variation.

Weekly Schedule Pattern

Nonstop flight frequency by day of week, PIT to STL direction.
Mon
4
flights
Tue
4
flights
Wed
4
flights
Thu
4
flights
Fri
4
flights
Sat
2
flights
Sun
4
flights
Departure time distribution
12 AM6 AM12 PM6 PM12 AM
Morning departures
Afternoon/evening departures
7
Nonstop flights
26
Outbound / wk
21
Return / wk

Connection Landscape

Beyond nonstop. 1-stop and 2-stop options for PIT to STL.
1-STOP
One-Stop Connections
68
Hubs
~2h
Fastest
~26h
Longest
Verified with published schedule alignment and minimum connection time.
2-STOP
Two-Stop Connections
2,202
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
PIT → STL
40%
Frequent delays expected. Consider flexible booking.
Departing
40%
Arriving
87%
Return
STL → PIT
73%
Moderate delays possible. Allow buffer time.
Departing
73%
Arriving
67%
OTP = percentage of flights arriving within 15 min of schedule. Based on airport-level delay snapshots. PIT delays → STL delays →

Other ways to reach St Louis from Pittsburgh

Nearby airports with service to St. Louis Lambert International Airport.
Metric PIT→STL CLE→STL
Distance from PIT 106 mi
Nonstop airlines 2 2
Weekly flights 26 27
Flight time 1h 50m 0h 34m
Departure OTP 40%
Airports within 200 miles of PIT with service to St. Louis Lambert International Airport.

Travel Essentials

Practical planning for this route.
Time Difference
0h
St Louis is 0 hours the same as Pittsburgh.
PIT: EDT · STL: EDT

When it's 6:00 PM in Pittsburgh, it's 6:00 PM in St Louis.
Distance & Flight Time
552 mi / 889 km
Nonstop flight time is approximately 1h 50m to 1h 55m.

PIT–STL Quick Facts

Key statistics for the Pittsburgh to St Louis route.
Route details
Distance552 mi / 889 km
Flight time1h 50m to 1h 55m
Time difference0 hours
Airlines (nonstop)2
Weekly flights26 out / 21 return
1-stop connections68 hubs
Origin: PIT
IATA / ICAOPIT / KPIT
TimezoneAmerica/Detroit
Passengers/yr9.7M
Elevation1,203 ft / 367 m
Destination: STL
IATA / ICAOSTL / KSTL
TimezoneAmerica/Indiana/Vincennes
Passengers/yr15.6M
Elevation618 ft / 188 m

Frequently Asked Questions

Common questions about PIT to STL flights.
Nonstop flights from Pittsburgh International Airport to St. Louis Lambert International Airport take approximately 1h 50m to 1h 55m. The route covers 552 miles.
2 airlines operate nonstop service: Delta Air Lines and Southwest Airlines.
There are approximately 26 nonstop flights per week from PIT to STL. The return direction has about 21 weekly flights.
Yes, 1-stop connections are available through BUF, LWB, MKC, TEB, PNS, ABE, NAS, BDL, PDK, DSM, PIE, OMA, SAV, ASE, BCT, EYW, EGE, AFW, SCF, CUN, SJC, SJU, AUS, PUJ, PBI, DCA, BNA, ORD, MSP, DTW, MEM, MDW, IAD, RDU, CLE, RSW, EWR, PHL, ATL, BWI, DFW, MCO, IAH, DAL, TPA, SEA, CMH, MIA, MSY, DEN, CLT, LGA, YYZ, BOS, JAX, HOU, LAS, PHX, FLL, VPS, SFO, HPN, SLC, SRQ, CHS, LAX, LUK and CVG. These options provide additional schedule flexibility.
Yes, return flights from STL to PIT are available. Use the direction toggle at the top to view the return schedule.
Nearby alternatives include CLE. See the Alternatives section for a full comparison.
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 PIT to STL

Pittsburgh International Airport (PIT) and St. Louis Lambert International Airport (STL) are connected by nonstop service from Delta Air Lines and Southwest Airlines. With 26 weekly departures, this is a well served route.

PIT to STL Flight Duration and Schedule

Nonstop flight time from PIT to STL ranges from 1 hours 50 minutes to 1 hours 55 minutes. The route covers a distance of 552 miles (889 km). There are approximately 26 weekly flights outbound and 21 return, totaling 47 flights per week in both directions.

Connecting Options and Alternatives

68 one-stop connections are available, with the fastest taking approximately 2 hours via BUF. Two-stop connections are also available via intermediate hubs. Nearby alternative airports include Cleveland (CLE).