DAL to DEN flight delays & on-time performance
Nonstop flights from Dallas Love Field to Denver International Airport · 651 miles · Aug 2025 – Jul 2026
No FAA-reported ground stops or delays at DAL or DEN right now. Individual flights can still be delayed by the airline; check with your airline for your flight.
Key facts
- Flights from Dallas (DAL) to Denver (DEN) arrived on time 70% of the time in Aug 2025 – Jul 2026, worse than the 78% national average.
- 1.4% were cancelled, and 10% arrived an hour or more late.
- Southwest Airlines is the only airline reporting nonstop flights on this route.
- Departures scheduled around 6am did best (94% on time); around 5pm did worst (49%).
- Tuesday was the most reliable day to fly (74% on time) and Thursday the least (66%).
- The largest source of delay minutes was late-arriving aircraft (45%).
Which airline is most on time from DAL to DEN?
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 | 70% | 1.4% | 18 min | 9.6% | 2,985 |
Best time of day to fly
On-time arrival rate by scheduled departure hour (local time).
- 6am94%240 flights
- 7am90%175 flights
- 8am74%202 flights
- 9am82%149 flights
- 10am72%155 flights
- 11am79%233 flights
- 12pm76%248 flights
- 1pm60%170 flights
- 2pm67%220 flights
- 3pm67%170 flights
- 4pm60%162 flights
- 5pm49%150 flights
- 6pm58%189 flights
- 7pm55%230 flights
- 8pm57%109 flights
- 9pm67%85 flights
- 10pm56%98 flights
Best day of the week
On-time arrival rate by day of departure.
- Monday69%2.0% cancelled
- Tuesday74%0.7% cancelled
- Wednesday74%0.7% cancelled
- Thursday66%0.7% cancelled
- Friday68%1.3% cancelled
- Saturday71%2.2% cancelled
- Sunday67%1.9% 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 aircraft45%
- Airline (crew, maintenance, cleaning, fueling)27%
- Air traffic control & airport congestion23%
- Extreme weather5%
- Security0%
Why flights are cancelled
Share of cancellations by reason.
- Extreme weather54%
- Airline (crew, maintenance, cleaning, fueling)27%
- Air traffic control & airport congestion20%
- Security0%
DAL to DEN: common questions
- How often are DAL to DEN flights on time?
- 70% 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 Dallas to Denver cancelled?
- 1.4% of scheduled flights were cancelled (41 of 2,985).
- 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 57 min behind schedule on average, and 9.6% of flights were an hour or more late.
- How long is taxi time at DAL?
- Flights on this route spent 14 min taxiing from the gate to takeoff on average.
Related routes
Return trip: DEN to DAL — 71% on time
More flights from Dallas
Data: U.S. DOT Bureau of Transportation Statistics, Aug 2025 – Jul 2026 (12 months). Latest month published by BTS: July 2026. Route: DAL → DEN, nonstop flights by US airlines that report to the DOT. How we calculate this.