Route · DAL → STL · 2020–2025 BTS data
Dallas to St. Louis
According to PlainFlights' route traffic ranking (BTS On-Time Performance total flights), DAL to STL (Dallas to St. Louis) ranks #1015 of 4927 tracked domestic routes by total flights (most flights = #1).
Data updated 2026-06-13
- 81%
- On-time
- +2 pts
- vs US avg
- 58 min
- Delay when late
- 11,129
- Flights
- #1015 of 4927
- Corpus placement
Cancelled
1.4%
Best Month
Dec 2025 90%
Worst Month
May 2024 71%
Distance
546 mi
Carriers
1
Monthly Performance
Recent 24 months of route data.
| Period | Flights | Delayed | Cancelled | Diverted | Carriers |
|---|---|---|---|---|---|
| Dec 2025 | 154 | 15 | 1 | 0 | WN |
| Nov 2025 | 150 | 28 | 3 | 1 | WN |
| Oct 2025 | 156 | 31 | 2 | 0 | WN |
| Sep 2025 | 172 | 23 | 0 | 0 | WN |
| Aug 2025 | 172 | 39 | 3 | 0 | WN |
| Jul 2025 | 161 | 40 | 0 | 0 | WN |
| Jun 2025 | 160 | 43 | 2 | 0 | WN |
| May 2025 | 173 | 45 | 5 | 2 | WN |
| Apr 2025 | 181 | 35 | 3 | 0 | WN |
| Mar 2025 | 172 | 34 | 1 | 0 | WN |
| Feb 2025 | 160 | 16 | 0 | 0 | WN |
| Jan 2025 | 176 | 25 | 20 | 1 | WN |
| Dec 2024 | 182 | 31 | 1 | 0 | WN |
| Nov 2024 | 172 | 25 | 1 | 1 | WN |
| Oct 2024 | 184 | 30 | 1 | 0 | WN |
| Sep 2024 | 170 | 19 | 0 | 0 | WN |
| Aug 2024 | 176 | 23 | 1 | 0 | WN |
| Jul 2024 | 173 | 49 | 0 | 1 | WN |
| Jun 2024 | 169 | 48 | 0 | 0 | WN |
| May 2024 | 177 | 51 | 6 | 1 | WN |
| Apr 2024 | 171 | 37 | 1 | 0 | WN |
| Mar 2024 | 165 | 41 | 0 | 0 | WN |
| Feb 2024 | 166 | 18 | 0 | 0 | WN |
| Jan 2024 | 178 | 34 | 6 | 0 | WN |
DAL–STL seasonal on-time pattern
Best: February (90.6%) · weakest: June (71.9%)
Strongest calendar month
February
90.6% on-time · ~151 flights/mo
Busiest calendar month
January
~161 flights/mo avg
Weakest calendar month
June
71.9% on-time · ~147 flights/mo
Cancellation Rate
1.4%
57 of 4,070 flights
Diversion Rate
0.2%
7 of 4,070 flights
Explore origin & destination
On-time and delay data for the airports this route connects.
DAL - Dallas
Full on-time, delay-cause, and seasonal performance for Dallas, TX.
DAL on-time profileSTL - St. Louis
Full on-time, delay-cause, and seasonal performance for St. Louis, MO.
STL on-time profileCompare the two airports
See DAL and STL side by side on delays, cancellations, and reliability.
Compare DAL vs STLOrigin-hub reliability standing
Mid-pack among DAL departures
From DAL, this corridor sits with 47 other 75–85% on-time routes out of 57 tracked departures, not the hub's reliability leaders (0 at ≥85%) and not the softest ( 10 below 75%). Destination: St. Louis · fleet on-time rank #2736 of 4927.
Similar routes
Other BTS-tracked routes with comparable performance or trip length to DAL–STL.
Routes with a similar on-time rate
What the Data Says About DAL to STL
11,129 tracked flights put the DAL to STL pairing (Dallas to St. Louis) at a 81% on-time rate, squarely in line with the wider network. Delays that do occur run 58.2 minutes on average. Across the 546-mile route and its 1 carrier, the trailing 24 months show 1.4% cancelled and 0.2% diverted (4,070 flights sampled).
The monthly split is wide on this route: Dec 2025 posted the strongest performance at 90% on-time, while May 2024 came in at just 71% - a 19-point swing worth factoring into travel timing.
On the multi-year calendar, DAL–STL peaks in February at 90.6% on-time while January carries the heaviest traffic (~161 flights per month) ; the softest month is June at 71.9%, a 18.7-point swing that repeats because the corridor's weather and holiday mix stays stable year to year.
Frequently Asked Questions
Where does DAL to STL rank among US routes by traffic? ▼
How often are flights delayed from DAL to STL? ▼
What is the cancellation rate for DAL to STL? ▼
How far is the flight from DAL to STL? ▼
When is the best time to fly from DAL to STL? ▼
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 DAL–STL data
DAL–STL is mid-pack at 81% on-time; month and carrier mix move more than the corridor headline.
- Compare DAL and STL airport profiles: delay causes and top routes differ even on the same corridor. DAL airport
- If your dates flex, February (90.6% on-time) beats June (71.9%) on this corridor. Seasonal chart
- 4 other routes post a similar 81% 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.