Route
TUS → DEN
Tucson International Airport Denver International Airport
How punctual is this route?
- On-time arrivals
- 83.9%
- Less than 15 minutes late
- Cancelled
- 0.6%
- Of scheduled flights
- Average delay when late
- 78 min
- Flights arriving 15+ minutes late
- Flights tracked
- 2,719
- Scheduled flights in the period
What caused the delays
- Airline (crew, maintenance, cleaning) 33%
- Air traffic control & airport 31%
- Late-arriving aircraft 31%
- Extreme weather 4%
- Security 0%
Share of delay minutes airlines attributed to each cause (BTS).
Show as table
| Month | On time | Flights |
|---|---|---|
| September 2025 | 82.2% | 193 |
| October 2025 | 86.7% | 256 |
| November 2025 | 90.6% | 264 |
| December 2025 | 82.5% | 271 |
| January 2026 | 90.1% | 254 |
| February 2026 | 83.6% | 246 |
| March 2026 | 79.6% | 275 |
| April 2026 | 87.7% | 260 |
| May 2026 | 82.3% | 233 |
| June 2026 | 77.4% | 147 |
| July 2026 | 76.7% | 150 |
| August 2026 | 79.6% | 170 |
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 |
|---|---|---|---|---|
| Southwest Airlines | 1,197 | 79.9% | 0.6% | 67 min |
| United Airlines | 923 | 86.2% | 0.5% | 83 min |
| SkyWest Airlines | 522 | 89.0% | 0.6% | 115 min |
| Frontier Airlines | 77 | 82.9% | 1.3% | 57 min |
Delay odds by flight
How often each flight number arrived 15 or more minutes late over the last year.
-
OO5598
12% late · 189 flights
-
UA2671
20% late · 165 flights
-
UA2368
4% late · 138 flights
-
OO5820
8% late · 132 flights
-
F92614
17% late · 77 flights
-
WN1599
63% late · 60 flights
-
WN155
9% late · 58 flights
-
WN3900
47% late · 58 flights
-
WN3911
9% late · 58 flights
-
WN4597
3% late · 58 flights
-
OO6010
17% late · 53 flights
-
UA1374
17% late · 52 flights
-
UA1401
13% late · 52 flights
-
WN4059
4% late · 52 flights
-
WN519
17% late · 52 flights
-
UA2418
9% late · 47 flights
-
WN2218
19% late · 42 flights
-
WN2946
10% late · 42 flights
-
WN4598
21% late · 42 flights
-
OO6020
15% late · 41 flights
-
WN3017
18% late · 40 flights
-
WN4482
2% late · 40 flights
-
UA281
19% late · 37 flights
-
OO4758
0% late · 35 flights
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