LGA to DEN flight delays & on-time performance
Nonstop flights from LaGuardia Airport to Denver International Airport · 1,620 miles · Aug 2025 – Jul 2026
No FAA-reported ground stops or delays at LGA or DEN right now. Individual flights can still be delayed by the airline; check with your airline for your flight.
Key facts
- Flights from New York (LGA) to Denver (DEN) arrived on time 71% of the time in Aug 2025 – Jul 2026, worse than the 78% national average.
- 3% were cancelled, and 10% arrived an hour or more late.
- United Airlines was the most punctual airline here (79% on time); Southwest Airlines was the least (62%).
- Departures scheduled around 7am did best (85% on time); around 5pm did worst (48%).
- Saturday was the most reliable day to fly (79% on time) and Sunday the least (68%).
- The largest source of delay minutes was late-arriving aircraft (41%).
Which airline is most on time from LGA 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 |
|---|---|---|---|---|---|
| United Airlines | 79% | 2.1% | 18 min | 7.4% | 2,020 |
| Delta Air Lines | 72% | 4.3% | 20 min | 10.5% | 1,032 |
| Frontier Airlines | 70% | 3.3% | 33 min | 12.8% | 121 |
| Southwest Airlines | 62% | 3.5% | 25 min | 12.6% | 1,494 |
Best time of day to fly
On-time arrival rate by scheduled departure hour (local time).
- 6am85%216 flights
- 7am85%794 flights
- 8am90%82 flights
- 9am46%66 flights
- 10am85%382 flights
- 11am65%104 flights
- 12pm85%410 flights
- 1pm71%119 flights
- 2pm62%494 flights
- 3pm71%380 flights
- 4pm58%564 flights
- 5pm48%153 flights
- 6pm64%581 flights
- 8pm37%121 flights
- 9pm68%72 flights
- 10pm71%116 flights
Best day of the week
On-time arrival rate by day of departure.
- Monday68%5.9% cancelled
- Tuesday74%4.0% cancelled
- Wednesday72%1.6% cancelled
- Thursday68%1.6% cancelled
- Friday73%1.4% cancelled
- Saturday79%2.4% cancelled
- Sunday68%4.4% 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 aircraft41%
- Air traffic control & airport congestion27%
- Airline (crew, maintenance, cleaning, fueling)26%
- Extreme weather6%
- Security0%
Why flights are cancelled
Share of cancellations by reason.
- Extreme weather59%
- Airline (crew, maintenance, cleaning, fueling)22%
- Air traffic control & airport congestion19%
- Security0%
LGA to DEN: common questions
- How often are LGA to DEN 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 New York to Denver cancelled?
- 3.0% of scheduled flights were cancelled (142 of 4,667).
- How long are typical delays?
- Across all flights the average arrival delay was 21 min (early arrivals count as zero). Flights that were late arrived 71 min behind schedule on average, and 9.9% of flights were an hour or more late.
- How long is taxi time at LGA?
- Flights on this route spent 25 min taxiing from the gate to takeoff on average.
Related routes
Return trip: DEN to LGA — 72% on time
More flights from New York
Data: U.S. DOT Bureau of Transportation Statistics, Aug 2025 – Jul 2026 (12 months). Latest month published by BTS: July 2026. Route: LGA → DEN, nonstop flights by US airlines that report to the DOT. How we calculate this.