Route · STL → SMF · 2020–2025 BTS data
St. Louis to Sacramento
According to PlainFlights' route traffic ranking (BTS On-Time Performance total flights), STL to SMF (St. Louis to Sacramento) ranks #4334 of 4927 tracked domestic routes by total flights (most flights = #1).
Data updated 2026-06-13
- 78%
- On-time
- -1 pts
- vs US avg
- 56 min
- Delay when late
- 1,220
- Flights
- #4334 of 4927
- Corpus placement
Cancelled
0.7%
Best Month
N/A
Worst Month
N/A
Distance
1,679 mi
Carriers
1
Monthly Performance
Recent 24 months of route data.
| Period | Flights | Delayed | Cancelled | Diverted | Carriers |
|---|---|---|---|---|---|
| Dec 2025 | 31 | 11 | 0 | 0 | WN |
| Oct 2025 | 31 | 12 | 0 | 0 | WN |
| Sep 2025 | 30 | 1 | 0 | 0 | WN |
| Aug 2025 | 31 | 4 | 0 | 0 | WN |
| Jul 2025 | 31 | 5 | 0 | 0 | WN |
| Jun 2025 | 30 | 9 | 0 | 0 | WN |
| May 2025 | 31 | 9 | 0 | 0 | WN |
| Apr 2025 | 30 | 8 | 0 | 0 | WN |
| Dec 2024 | 31 | 9 | 0 | 0 | WN |
| Oct 2024 | 31 | 9 | 0 | 0 | WN |
| Sep 2024 | 34 | 10 | 0 | 0 | WN |
| Aug 2024 | 34 | 11 | 0 | 0 | WN |
| Jul 2024 | 31 | 8 | 0 | 0 | WN |
| Jun 2024 | 30 | 7 | 0 | 0 | WN |
| May 2024 | 31 | 13 | 0 | 0 | WN |
| Apr 2024 | 30 | 5 | 0 | 1 | WN |
| Mar 2024 | 31 | 7 | 0 | 0 | WN |
| Jan 2024 | 31 | 13 | 0 | 0 | WN |
| Dec 2023 | 31 | 8 | 0 | 0 | WN |
| Sep 2023 | 30 | 9 | 0 | 0 | WN |
| Aug 2023 | 31 | 10 | 0 | 0 | WN |
| Jul 2023 | 31 | 21 | 0 | 0 | WN |
| Dec 2022 | 31 | 14 | 5 | 0 | WN |
| Nov 2022 | 30 | 9 | 0 | 0 | WN |
STL–SMF seasonal on-time pattern
Best: April (84.4%) · weakest: January (58.1%)
Strongest calendar month
April
84.4% on-time · ~30 flights/mo
Busiest calendar month
July
~33 flights/mo avg
Weakest calendar month
January
58.1% on-time · ~31 flights/mo
Cancellation Rate
0.7%
5 of 743 flights
Diversion Rate
0.1%
1 of 743 flights
Explore origin & destination
On-time and delay data for the airports this route connects.
STL - St. Louis
Full on-time, delay-cause, and seasonal performance for St. Louis, MO.
STL on-time profileSMF - Sacramento
Full on-time, delay-cause, and seasonal performance for Sacramento, CA.
SMF on-time profileCompare the two airports
See STL and SMF side by side on delays, cancellations, and reliability.
Compare STL vs SMFOrigin-hub reliability standing
Mid-pack among STL departures
From STL, this corridor sits with 45 other 75–85% on-time routes out of 51 tracked departures, not the hub's reliability leaders (5 at ≥85%) and not the softest ( 1 below 75%). Destination: Sacramento · fleet on-time rank #3853 of 4927.
Similar routes
Other BTS-tracked routes with comparable performance or trip length to STL–SMF.
Routes with a similar on-time rate
What the Data Says About STL to SMF
The St. Louis to Sacramento corridor (STL to SMF) posts a 78% on-time rate on the lower edge of the average band, based on 1,220 tracked flights. Late flights run 56.1 minutes behind on average. 1 carrier cover the 1,679-mile route; over the last 24 months, 5 of 743 flights were cancelled (0.7%) and 0.1% diverted.
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.
On the multi-year calendar, STL–SMF peaks in April at 84.4% on-time while July carries the heaviest traffic (~33 flights per month) ; the softest month is January at 58.1%, a 26.3-point swing that repeats because the corridor's weather and holiday mix stays stable year to year.
Frequently Asked Questions
Where does STL to SMF rank among US routes by traffic? ▼
How often are flights delayed from STL to SMF? ▼
What is the cancellation rate for STL to SMF? ▼
How far is the flight from STL to SMF? ▼
Airports on this route
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.
Using STL–SMF data
STL–SMF is mid-pack at 78% on-time; month and carrier mix move more than the corridor headline.
- Compare STL and SMF airport profiles: delay causes and top routes differ even on the same corridor. STL airport
- If your dates flex, April (84.4% on-time) beats January (58.1%) on this corridor. Seasonal chart
- 4 other routes post a similar 78% on-time rate; compare before you commit to this pairing. Similar routes
On-time rate reflects the BTS historical average across all reporting carriers on this origin–destination pair, not any single flight or booking recommendation.
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.