DEN to DAL flight delays & on-time performance
Nonstop flights from Denver International Airport to Dallas Love Field · 651 miles · Aug 2025 – Jul 2026
No FAA-reported ground stops or delays at DEN or DAL right now. Individual flights can still be delayed by the airline; check with your airline for your flight.
Key facts
- Flights from Denver (DEN) to Dallas (DAL) arrived on time 71% of the time in Aug 2025 – Jul 2026, worse than the 78% national average.
- 1.2% were cancelled, and 9% arrived an hour or more late.
- Southwest Airlines is the only airline reporting nonstop flights on this route.
- Departures scheduled around 5am did best (97% on time); around 7pm did worst (47%).
- Saturday was the most reliable day to fly (76% on time) and Sunday the least (64%).
- The largest source of delay minutes was late-arriving aircraft (47%).
Which airline is most on time from DEN to DAL?
Ranked by on-time arrival rate. Regional airlines fly under their partner's brand (e.g. SkyWest for Delta Connection or United Express).
| Airline | On time | Cancelled | Avg delay | 1 hr+ late | Flights |
|---|---|---|---|---|---|
| Southwest Airlines | 71% | 1.2% | 18 min | 9.0% | 2,983 |
Best time of day to fly
On-time arrival rate by scheduled departure hour (local time).
- 5am97%179 flights
- 6am93%166 flights
- 7am89%206 flights
- 8am91%185 flights
- 9am83%185 flights
- 10am80%254 flights
- 11am65%105 flights
- 12pm76%152 flights
- 1pm70%263 flights
- 2pm69%114 flights
- 3pm57%191 flights
- 4pm52%135 flights
- 5pm63%137 flights
- 6pm52%225 flights
- 7pm47%234 flights
- 8pm52%252 flights
Best day of the week
On-time arrival rate by day of departure.
- Monday72%1.6% cancelled
- Tuesday74%1.5% cancelled
- Wednesday76%0.7% cancelled
- Thursday66%0.7% cancelled
- Friday67%1.1% cancelled
- Saturday76%1.4% cancelled
- Sunday64%1.5% cancelled
On-time trend by month
Why flights are late
Share of delay minutes by cause, as reported by airlines to the DOT.
- Late-arriving aircraft47%
- Airline (crew, maintenance, cleaning, fueling)32%
- Air traffic control & airport congestion20%
- Extreme weather1%
- Security0%
Why flights are cancelled
Share of cancellations by reason.
- Extreme weather58%
- Air traffic control & airport congestion25%
- Airline (crew, maintenance, cleaning, fueling)17%
- Security0%
DEN to DAL: common questions
- How often are DEN to DAL flights on time?
- 71% of flights arrived less than 15 minutes late in Aug 2025 – Jul 2026, compared with 78% for all US flights.
- How often are flights from Denver to Dallas cancelled?
- 1.2% of scheduled flights were cancelled (36 of 2,983).
- How long are typical delays?
- Across all flights the average arrival delay was 18 min (early arrivals count as zero). Flights that were late arrived 56 min behind schedule on average, and 9.0% of flights were an hour or more late.
- How long is taxi time at DEN?
- Flights on this route spent 16 min taxiing from the gate to takeoff on average.
Related routes
Return trip: DAL to DEN — 70% on time
More flights from Denver
Data: U.S. DOT Bureau of Transportation Statistics, Aug 2025 – Jul 2026 (12 months). Latest month published by BTS: July 2026. Route: DEN → DAL, nonstop flights by US airlines that report to the DOT. How we calculate this.