Route
RDU → DEN
Raleigh-Durham International Airport Denver International Airport
How punctual is this route?
- On-time arrivals
- 81.9%
- Less than 15 minutes late
- Cancelled
- 0.7%
- Of scheduled flights
- Average delay when late
- 74 min
- Flights arriving 15+ minutes late
- Flights tracked
- 1,734
- Scheduled flights in the period
What caused the delays
- Late-arriving aircraft 44%
- Airline (crew, maintenance, cleaning) 26%
- Air traffic control & airport 24%
- Extreme weather 5%
- Security 1%
Share of delay minutes airlines attributed to each cause (BTS).
Show as table
| Month | On time | Flights |
|---|---|---|
| September 2025 | 80.5% | 133 |
| October 2025 | 84.6% | 136 |
| November 2025 | 84.8% | 138 |
| December 2025 | 69.9% | 147 |
| January 2026 | 86.9% | 138 |
| February 2026 | 88.1% | 128 |
| March 2026 | 85.1% | 149 |
| April 2026 | 83.0% | 147 |
| May 2026 | 89.0% | 155 |
| June 2026 | 76.5% | 154 |
| July 2026 | 79.5% | 157 |
| August 2026 | 77.0% | 152 |
Source: U.S. DOT Bureau of Transportation Statistics on-time data, September 2025 – August 2026. Covers flights operated by reporting U.S. carriers. About our data
Airlines on this route
| Airline | Flights | On time | Cancelled | Avg. delay when late |
|---|---|---|---|---|
| United Airlines | 727 | 87.7% | 0.4% | 97 min |
| Southwest Airlines | 710 | 74.8% | 1.0% | 60 min |
| Frontier Airlines | 297 | 84.6% | 1.0% | 84 min |
Delay odds by flight
How often each flight number arrived 15 or more minutes late over the last year.
-
UA2288
18% late · 331 flights
-
F92225
16% late · 264 flights
-
UA2383
9% late · 124 flights
-
WN1950
24% late · 64 flights
-
WN1291
41% late · 59 flights
-
WN1543
9% late · 58 flights
-
WN271
34% late · 58 flights
-
WN3308
6% late · 58 flights
-
UA530
11% late · 55 flights
-
UA2167
6% late · 53 flights
-
UA2270
2% late · 45 flights
-
WN3428
61% late · 45 flights
-
WN4083
14% late · 43 flights
-
WN199
12% late · 42 flights
-
UA1022
9% late · 36 flights
-
WN2263
6% late · 33 flights
-
F92439
13% late · 32 flights
-
UA2376
12% late · 32 flights
-
UA2395
3% late · 32 flights
-
WN1123
13% late · 31 flights
-
WN3349
58% late · 28 flights
-
WN3733
50% late · 28 flights
-
WN2062
26% late · 27 flights
-
WN454
19% late · 26 flights
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