Route · PIT → STL · 2020–2025 BTS data
Pittsburgh to St. Louis
The PIT–STL corridor (Pittsburgh, PA → St. Louis, MO) runs ahead of the national average, served by 1 carrier across roughly 554 miles.
Data updated 2026-06-13
- 87.2%
- On-time
- +8.2 pts
- vs US avg
- 63 min
- Delay when late
- 1,434
- Flights
Cancelled
0.1%
Best Month
N/A
Worst Month
N/A
Distance
554 mi
Carriers
1
Monthly Performance
Recent 24 months of route data.
| Period | Flights | Delayed | Cancelled | Diverted | Carriers |
|---|---|---|---|---|---|
| Dec 2025 | 31 | 7 | 0 | 0 | WN |
| Nov 2025 | 31 | 2 | 0 | 0 | WN |
| Oct 2025 | 35 | 6 | 0 | 0 | WN |
| Sep 2025 | 34 | 3 | 0 | 0 | WN |
| Aug 2025 | 35 | 7 | 0 | 0 | WN |
| Jul 2025 | 35 | 5 | 0 | 0 | WN |
| Jun 2025 | 34 | 4 | 0 | 0 | WN |
| May 2025 | 31 | 9 | 0 | 0 | WN |
| Apr 2025 | 30 | 6 | 0 | 0 | WN |
| Mar 2025 | 31 | 3 | 0 | 0 | WN |
| Dec 2024 | 32 | 2 | 0 | 0 | WN |
| Nov 2024 | 30 | 1 | 0 | 0 | WN |
| Oct 2024 | 35 | 3 | 0 | 0 | WN |
| Sep 2024 | 34 | 2 | 0 | 0 | WN |
| Aug 2024 | 35 | 5 | 0 | 0 | WN |
| Jul 2024 | 35 | 11 | 0 | 0 | WN |
| Jun 2024 | 33 | 4 | 0 | 0 | WN |
| Jan 2024 | 31 | 4 | 1 | 0 | WN |
| Dec 2023 | 31 | 2 | 0 | 0 | WN |
| Nov 2023 | 30 | 2 | 0 | 0 | WN |
| Oct 2023 | 36 | 6 | 0 | 0 | WN |
| Sep 2023 | 33 | 0 | 0 | 0 | WN |
| Aug 2023 | 31 | 8 | 0 | 0 | WN |
| Jul 2023 | 31 | 7 | 0 | 0 | WN |
Cancellation Rate
0.1%
1 of 784 flights
Diversion Rate
0.0%
0 of 784 flights
Explore origin & destination
On-time and delay data for the airports this route connects.
PIT - Pittsburgh
Full on-time, delay-cause, and seasonal performance for Pittsburgh, PA.
Origin airport →STL - St. Louis
Full on-time, delay-cause, and seasonal performance for St. Louis, MO.
Destination airport →Compare the two airports
See PIT and STL side by side on delays, cancellations, and reliability.
Open comparison tool →Similar routes
Other BTS-tracked routes with comparable performance or trip length to PIT–STL.
Routes with a similar on-time rate
What the Data Says About PIT to STL
Pittsburgh to St. Louis (PIT to STL) is one of the more dependable pairings in the BTS On-Time Performance dataset: a 87.2% on-time rate across 1,434 flights, with delays that do happen averaging 63.0 minutes. The corridor runs roughly 554 miles and is served by 1 carrier. Over the most recent 24 months, 1 of 784 flights were cancelled (0.1%) and 0 diverted (0.0%).
Monthly performance data for this route did not show a clear best/worst split in the sample window; review the monthly table above for period-by-period detail.
Frequently Asked Questions
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Data source
Data Source: Bureau of Transportation Statistics (BTS), On-Time Performance Data. Statistics reflect cumulative performance across all available reporting periods.
Read our methodology - how this data is sourced, computed, and verified.
Every figure on PlainFlights is rendered directly from BTS On-Time Performance data, no number is typed in by an editor. This page aggregates this specific route's on-time performance and monthly trend, live from the dataset. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error.