Route Reliability
New York → Denver
LGA–DEN · 1,620 miles · LaGuardia Airport to Denver International Airport
- 72%
- Arrive within 15 minutes
- 12 min
- Average arrival delay
- 3.0%
- Cancelled
- 4,672
- Flights in the data
Data through May 2026.
Who flies it best
Ranked by on-time arrivals. Historical results, not predictions.
- 1.United Airlines79%2,012 flights
- 2.Delta Air Lines73%1,038 flights
- 3.Southwest Airlines63%1,441 flights
- 4.Frontier Airlines63%181 flights
What the data says
Morning flights do better here.
LGA–DEN flights departing between 6–9 AM arrived on time 89% of the time, versus 59% between 6–9 PM.
Sunday scaries are real for this one.
LGA–DEN flights arrived on time 79% of the time on Saturdays. On Sundays: 68%.
United Airlines has a clear lead on this route.
United Airlines arrived on time 79% of the time on this route; Frontier Airlines managed 63%.
Keep a backup plan handy.
This route was cancelled 3.0% of the time. Typical for U.S. flights is around 1–2%.
Best historical flights
Ranked by on-time arrivals, minimum 100 flights. Past performance, not a promise.
Top flights by on-time rate
More flights on this route
The breakdown
- Mon71%(671 flights)
- Tue72%(685 flights)
- Wed74%(693 flights)
- Thu69%(677 flights)
- Fri72%(695 flights)
- Sat79%(443 flights)
- Sun68%(637 flights)
- 6–9 AM89%(1064 flights)
- 9 AM–12 PM78%(504 flights)
- 12–3 PM74%(973 flights)
- 3–6 PM61%(1046 flights)
- 6–9 PM59%(645 flights)
- 9 PM–12 AM61%(269 flights)
Jun 63% → May 75% on time
| Month | On-time percentage | Flights |
|---|---|---|
| June 2025 | 63% | 377 |
| July 2025 | 62% | 372 |
| August 2025 | 76% | 396 |
| September 2025 | 78% | 396 |
| October 2025 | 70% | 391 |
| November 2025 | 71% | 353 |
| December 2025 | 63% | 372 |
| January 2026 | 84% | 368 |
| February 2026 | 78% | 315 |
| March 2026 | 66% | 379 |
| April 2026 | 78% | 393 |
| May 2026 | 75% | 389 |
Same trip, other airports
Keep nerding
Based on 4,672 historical flights, because apparently we checked. Historical flight data: U.S. Bureau of Transportation Statistics, June 2025 – May 2026. Data through May 2026. How we calculate this.