Dallas/Fort Worth (DFW) to St. Louis (STL): On-Time Performance
Data through July 2026
The calendar drives reliability on DFW–STL. February 2025 flights landed on schedule 85% of the time, but July 2026 dropped to 52% — a gap of 32 points. Across the full period the route averages 70% on-time against a national 78%. Morning departures also hold up better than evening ones (81% vs 62%), which matters most in the rough months.
- On-time
- 70%
- arrived <15 min late
- Avg delay
- 23 min
- completed flights
- Cancelled
- 2.8%
- Flights/day
- 6.5
- last 12 months
- Duration
- 1h 48m
- scheduled
- Distance
- 550 mi
Best airline from DFW to STL
5 airlines flew this route regularly between 2024-07 and 2026-07.
| Airline | On-time | Avg delay | Cancelled | Flights |
|---|---|---|---|---|
| Envoy Airmost reliable | 86% | 8 min | 2.6% | 731 |
| Frontier Airlines | 78% | 16 min | 0.6% | 165 |
| PSA Airlines | 73% | 19 min | 4.4% | 114 |
| American Airlines | 67% | 27 min | 3.0% | 3,865 |
| SkyWest Airlines | 61% | 31 min | 0.7% | 145 |
Monthly on-time trend
Best time to fly from DFW to STL
Aim for departures around 12 p.m. (85% on-time); avoid 6 p.m. departures (51%).
By day of week
| Day | On-time | Avg delay |
|---|---|---|
| Monday | 66% | 29 min |
| Tuesdaybest | 76% | 22 min |
| Wednesday | 73% | 19 min |
| Thursday | 70% | 23 min |
| Friday | 71% | 22 min |
| Saturday | 72% | 21 min |
| Sunday | 64% | 28 min |
What causes delays on this route
Share of total delay minutes by cause, as reported by carriers to the US DOT.
- Late-arriving aircraft55%
- Airline operations30%
- National airspace system8%
- Weather8%
Frequently asked questions
- How often are flights from DFW to STL delayed?
- 30% of DFW–STL flights arrived 15 or more minutes late (the US DOT definition of a delay) between 2024-07 and 2026-07. The average arrival delay across completed flights was 23 minutes.
- Which airline is most reliable from DFW to STL?
- Envoy Air has the best on-time record on this route at 86%, based on 731 flights. 5 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 6 p.m. have the worst (51%). 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 30% of the time.
- How often are DFW to STL flights cancelled?
- 2.8% of scheduled flights on this route were cancelled between 2024-07 and 2026-07, slightly above the national rate of 1.6%.
- What is the worst month to fly from DFW to STL?
- July 2026 was the roughest month in this dataset, with only 52% of arrivals on time. The best was February 2025 at 85%. If your dates are flexible, that 32-point gap is worth planning around.
Explore related pages
More routes from DFW
Other ways to fly to St. Louis (STL)
Related guides
Based on 5,020 flights, 2024-07–2026-07. Source: US DOT Bureau of Transportation Statistics. Updated 2026-09-28.