Route
DEN → PDX
Denver International Airport Portland International Airport
How punctual is this route?
- On-time arrivals
- 74.8%
- Less than 15 minutes late
- Cancelled
- 0.3%
- Of scheduled flights
- Average delay when late
- 60 min
- Flights arriving 15+ minutes late
- Flights tracked
- 4,280
- Scheduled flights in the period
What caused the delays
- Late-arriving aircraft 54%
- Airline (crew, maintenance, cleaning) 31%
- Air traffic control & airport 13%
- Extreme weather 2%
- Security 0%
Share of delay minutes airlines attributed to each cause (BTS).
Show as table
| Month | On time | Flights |
|---|---|---|
| September 2025 | 82.0% | 395 |
| October 2025 | 76.8% | 393 |
| November 2025 | 79.9% | 345 |
| December 2025 | 66.0% | 346 |
| January 2026 | 83.2% | 269 |
| February 2026 | 78.8% | 245 |
| March 2026 | 69.7% | 294 |
| April 2026 | 85.8% | 303 |
| May 2026 | 79.0% | 366 |
| June 2026 | 60.4% | 435 |
| July 2026 | 73.0% | 457 |
| August 2026 | 70.3% | 432 |
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 | 1,822 | 82.3% | 0.4% | 65 min |
| Southwest Airlines | 1,547 | 62.1% | 0.3% | 56 min |
| Alaska Airlines | 643 | 80.5% | 0.3% | 66 min |
| Frontier Airlines | 255 | 85.4% | 0.4% | 68 min |
| SkyWest Airlines | 13 | 46.2% | 0.0% | 45 min |
Delay odds by flight
How often each flight number arrived 15 or more minutes late over the last year.
-
UA498
23% late · 364 flights
-
UA1247
12% late · 363 flights
-
UA1337
17% late · 327 flights
-
UA644
16% late · 312 flights
-
AS684
12% late · 247 flights
-
F92553
14% late · 234 flights
-
UA1770
33% late · 146 flights
-
AS679
26% late · 118 flights
-
UA2455
12% late · 103 flights
-
AS1626
13% late · 70 flights
-
AS1807
49% late · 69 flights
-
WN4271
38% late · 61 flights
-
WN943
23% late · 61 flights
-
WN2581
50% late · 60 flights
-
WN1997
48% late · 58 flights
-
WN4017
9% late · 58 flights
-
WN2109
7% late · 56 flights
-
UA1145
2% late · 55 flights
-
WN4433
22% late · 55 flights
-
UA2390
21% late · 53 flights
-
WN1671
73% late · 52 flights
-
WN300
25% late · 51 flights
-
WN888
29% late · 51 flights
-
WN492
14% late · 49 flights
Reviews
No reviews yet. Be the first to review this route.