Dallas/Fort Worth (DFW) to St. Louis (STL): On-Time Performance
Data through May 2026
The calendar drives reliability on DFW–STL. February 2025 flights landed on schedule 85% of the time, but August 2025 dropped to 55% — a gap of 29 points. Across the full period the route averages 71% on-time against a national 78%. Morning departures also hold up better than evening ones (82% vs 63%), which matters most in the rough months.
- On-time
- 71%
- arrived <15 min late
- Avg delay
- 22 min
- completed flights
- Cancelled
- 2.7%
- Flights/day
- 6.5
- last 12 months
- Duration
- 1h 48m
- scheduled
- Distance
- 550 mi
Best airline from DFW to STL
4 airlines flew this route regularly between 2024-06 and 2026-05.
| Airline | On-time | Avg delay | Cancelled | Flights |
|---|---|---|---|---|
| Envoy Airmost reliable | 85% | 8 min | 2.4% | 787 |
| Frontier Airlines | 78% | 15 min | 1.6% | 128 |
| American Airlines | 68% | 25 min | 2.8% | 3,679 |
| SkyWest Airlines | 59% | 34 min | 0.8% | 131 |
Monthly on-time trend
Best time to fly from DFW to STL
Aim for departures around 12 p.m. (85% on-time); avoid 3 p.m. departures (52%).
By day of week
| Day | On-time | Avg delay |
|---|---|---|
| Monday | 69% | 27 min |
| Tuesdaybest | 78% | 19 min |
| Wednesday | 72% | 18 min |
| Thursday | 71% | 22 min |
| Friday | 72% | 20 min |
| Saturday | 72% | 22 min |
| Sunday | 66% | 26 min |
What causes delays on this route
Share of total delay minutes by cause, as reported by carriers to the US DOT.
- Late-arriving aircraft53%
- Airline operations30%
- National airspace system8%
- Weather8%
Frequently asked questions
- How often are flights from DFW to STL delayed?
- 29% of DFW–STL flights arrived 15 or more minutes late (the US DOT definition of a delay) between 2024-06 and 2026-05. The average arrival delay across completed flights was 22 minutes.
- Which airline is most reliable from DFW to STL?
- Envoy Air has the best on-time record on this route at 85%, based on 787 flights. 4 airlines flew DFW–STL frequently enough to compare in this period.
- What is the best time of day to fly from DFW to STL?
- Departures around 12 p.m. have the best record (85% on-time), while departures around 3 p.m. have the worst (52%). As on most US routes, delays accumulate through the day, so earlier flights are generally safer.
- How long is the flight from DFW to STL?
- The scheduled DFW–STL flight time averages 1h 48m over 550 miles. Actual arrival times vary — flights on this route land 15+ minutes late 29% of the time.
- How often are DFW to STL flights cancelled?
- 2.7% of scheduled flights on this route were cancelled between 2024-06 and 2026-05, slightly above the national rate of 1.6%.
- What is the worst month to fly from DFW to STL?
- August 2025 was the roughest month in this dataset, with only 55% of arrivals on time. The best was February 2025 at 85%. If your dates are flexible, that 29-point gap is worth planning around.
Explore related pages
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Based on 4,772 flights, 2024-06–2026-05. Source: US DOT Bureau of Transportation Statistics. Updated 2026-07-01.