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Airport · 12 months to July 2026
Portland International: delays and on-time record
Portland, Oregon
BTS: A flight is counted as on time if it arrived less than 15 minutes after its scheduled time. Only carriers with at least 0.5 percent of domestic scheduled passenger revenue report. Data through July 2026; this is a monthly history, not live airport status.
Reporting carriers scheduled 63,282 domestic departures from Portland International (PDX), Portland, in the 12 months to July 2026: about 173 a day to 74 destinations.
82.7% of those flights left the gate less than 15 minutes late, 6.6 points above the national departure figure of 76.1%. Flights arriving at PDX were on time 80.4% of the time, 4.4 points above the national arrival figure of 76.0%.
0.7% of scheduled departures were cancelled (national: 1.8%), and the average departure delay, counting early and on-time departures as zero, was 11.6 min.
Alaska Airlines is the largest reporting carrier at PDX with 38% of departures. Among carriers with at least 633 departures, Delta Air Lines had the highest on-time arrival share for its PDX departures (88.9%) and Southwest Airlines the lowest (76.1%).
On-time departures are down 1.9 points on the previous 12 months (84.6%).
Of the delay minutes that carriers assigned to a BTS cause category for flights leaving PDX, air carrier 37%, late-arriving aircraft 36% and national aviation system 24%.
- On time 82.0%
- Arrived 15+ minutes late 17.0%
- Cancelled 0.7%
- Diverted 0.3%
As origin and as destination, against the nation
| Measure | Departures from PDX | Arrivals at PDX | All reported flights | PDX departures, previous 12 months |
|---|---|---|---|---|
| Departed on time (less than 15 min late) | 82.7% | 79.2% | 76.1% | 84.6% |
| Arrived on time | 82.0% | 80.4% | 76.0% | 83.0% |
| Cancelled | 0.7% | 0.8% | 1.8% | 0.6% |
| Diverted | 0.3% | 0.1% | 0.3% | 0.2% |
| Average departure delay (late minutes only) | 11.6 min | 13.0 min | 17.4 min | 10.5 min |
| Arrival delay minutes per 100 flights | 1,134 | 1,205 | 1,684 | 1,078 |
| Scheduled flights | 63,282 | 63,274 | 7,043,858 | 60,594 |
12 months to July 2026. The first column follows flights that left PDX; the second follows flights that landed there. Year on year, on-time departures moved −1.9 pts.
Airlines at PDX
| Reporting carrier | Flights | Share | On time | Avg arrival delay | Cancelled |
|---|---|---|---|---|---|
| AS Alaska Airlines | 23,990 | 38% | 82.5% | 0.6 min | 0.6% |
| OO SkyWest Airlines | 10,528 | 17% | 85.1% | 1.4 min | 0.6% |
| WN Southwest Airlines | 8,559 | 14% | 76.1% | 7.6 min | 0.3% |
| DL Delta Air Lines | 7,194 | 11% | 88.9% | -4.6 min | 1.1% |
| UA United Airlines | 6,627 | 10% | 80.7% | 2.4 min | 0.6% |
| AA American Airlines | 4,504 | 7% | 78.4% | 10.1 min | 2.0% |
| F9 Frontier Airlines | 865 | 1% | 77.7% | 4.5 min | 1.4% |
| G4 Allegiant Air | 396 | 1% | 71.5% | 37.0 min | 0.3% |
| HA Hawaiian Airlines | 375 | 1% | 56.3% | 29.2 min | 1.3% |
| B6 JetBlue Airways | 138 | 0% | 67.4% | 22.7 min | 3.6% |
| NK Spirit Airlines | 70 | 0% | 84.3% | -2.1 min | 0.0% |
| MQ Envoy Air | 36 | 0% | 80.6% | 1.4 min | 0.0% |
Departures from PDX by reporting carrier, ordered by flights; on time means the flight reached its destination less than 15 minutes late. Green is at or above the airport's overall share of 82.0%. Carriers fly different routes at different hours, so the rows are not a like-for-like test.
Busiest routes from PDX
| Route | Cities | Flights | On time | Avg arrival delay | Cancelled |
|---|---|---|---|---|---|
| PDX–SEA | Portland to Seattle | 4,942 | 84.8% | -0.1 min | 0.7% |
| PDX–LAX | Portland to Los Angeles | 4,345 | 86.2% | -0.3 min | 0.7% |
| PDX–DEN | Portland to Denver | 4,286 | 81.9% | 2.3 min | 0.4% |
| PDX–PHX | Portland to Phoenix | 3,750 | 78.7% | 9.1 min | 0.4% |
| PDX–SFO | Portland to San Francisco | 3,494 | 69.0% | 12.4 min | 0.4% |
| PDX–LAS | Portland to Las Vegas | 2,956 | 80.0% | 5.1 min | 0.5% |
| PDX–ORD | Portland to Chicago | 2,808 | 77.6% | 6.2 min | 1.0% |
| PDX–DFW | Portland to Dallas/Fort Worth | 2,380 | 78.7% | 7.6 min | 2.5% |
| PDX–SLC | Portland to Salt Lake City | 2,374 | 88.1% | -2.4 min | 1.1% |
| PDX–SMF | Portland to Sacramento | 1,966 | 81.8% | 3.7 min | 0.3% |
| PDX–SAN | Portland to San Diego | 1,771 | 76.3% | 5.4 min | 0.8% |
| PDX–SJC | Portland to San Jose | 1,672 | 81.8% | 3.7 min | 0.2% |
| PDX–ATL | Portland to Atlanta | 1,551 | 87.1% | -4.5 min | 1.0% |
| PDX–SNA | Portland to Santa Ana | 1,550 | 89.7% | -5.1 min | 1.1% |
| PDX–MSP | Portland to Minneapolis | 1,543 | 91.3% | -7.7 min | 0.6% |
| PDX–OAK | Portland to Oakland | 1,287 | 77.2% | 6.6 min | 0.7% |
| PDX–IAH | Portland to Houston | 1,227 | 84.7% | -0.8 min | 0.5% |
| PDX–ANC | Portland to Anchorage | 1,209 | 83.0% | 0.2 min | 0.0% |
| PDX–GEG | Portland to Spokane | 1,030 | 85.3% | 0.8 min | 0.9% |
| PDX–BUR | Portland to Burbank | 995 | 85.2% | 0.6 min | 0.9% |
| PDX–JFK | Portland to New York | 914 | 84.1% | -5.2 min | 2.0% |
| PDX–BOI | Portland to Boise | 908 | 85.7% | 0.6 min | 0.8% |
| PDX–HNL | Portland to Honolulu | 908 | 60.4% | 19.0 min | 1.4% |
| PDX–EWR | Portland to Newark | 899 | 81.9% | -2.6 min | 1.9% |
| PDX–PSP | Portland to Palm Springs | 738 | 82.1% | 2.1 min | 1.2% |
| PDX–OGG | Portland to Kahului | 728 | 89.3% | -9.8 min | 0.1% |
| PDX–MDW | Portland to Chicago | 684 | 88.6% | -3.5 min | 0.7% |
| PDX–BOS | Portland to Boston | 671 | 77.5% | 3.6 min | 1.3% |
| PDX–STS | Portland to Santa Rosa | 640 | 82.3% | 1.0 min | 0.5% |
| PDX–AUS | Portland to Austin | 607 | 84.5% | 0.6 min | 0.5% |
| PDX–FAT | Portland to Fresno | 588 | 84.0% | 4.7 min | 0.3% |
| PDX–EUG | Portland to Eugene | 582 | 89.5% | -1.6 min | 1.2% |
| PDX–ONT | Portland to Ontario | 566 | 83.2% | 1.7 min | 0.5% |
| PDX–CLT | Portland to Charlotte | 440 | 90.0% | -9.2 min | 1.4% |
| PDX–MCO | Portland to Orlando | 391 | 81.6% | -2.8 min | 0.3% |
| PDX–DTW | Portland to Detroit | 379 | 77.6% | 15.2 min | 1.1% |
| PDX–KOA | Portland to Kona | 365 | 85.5% | -4.0 min | 0.0% |
| PDX–TUS | Portland to Tucson | 365 | 83.6% | 1.5 min | 0.0% |
| PDX–DCA | Portland to Washington | 363 | 84.8% | -8.3 min | 0.3% |
| PDX–MCI | Portland to Kansas City | 347 | 81.8% | 2.1 min | 0.3% |
| PDX–MIA | Portland to Miami | 342 | 83.0% | -1.2 min | 0.9% |
| PDX–BNA | Portland to Nashville | 318 | 77.7% | 3.1 min | 0.0% |
| PDX–RNO | Portland to Reno | 310 | 91.6% | -4.1 min | 0.0% |
| PDX–IAD | Portland to Washington | 291 | 92.4% | -12.5 min | 0.7% |
| PDX–MFR | Portland to Medford | 271 | 86.0% | 3.3 min | 2.2% |
| PDX–RDM | Portland to Bend/Redmond | 269 | 86.6% | 2.0 min | 1.5% |
| PDX–PHL | Portland to Philadelphia | 262 | 84.4% | -4.9 min | 1.9% |
| PDX–LIH | Portland to Lihue | 253 | 87.7% | -9.8 min | 0.0% |
| PDX–DAL | Portland to Dallas | 230 | 57.4% | 18.7 min | 0.0% |
| PDX–BWI | Portland to Baltimore | 200 | 84.0% | 0.1 min | 0.0% |
| PDX–BLI | Portland to Bellingham | 136 | 90.4% | -0.8 min | 0.7% |
The 51 busiest of 74 routes with reported flights. Routes with at least 10 flights a month have their own page.
Month by month
By scheduled departure hour
Among hours with at least 1,266 departures, 5 am to 6 am had the highest on-time share (94.4% of 3,160 flights) and 3 pm to 4 pm the lowest (75.0% of 1,853).
Delay causes
Cancellations by reported reason (471 in the period): air carrier 46%, weather 40%, national aviation system 13%, security 0%.
Checkpoint volumes
TSA publishes daily checkpoint passenger counts for the country as a whole, not for PDX on its own. The national series through September 2026 is on the checkpoint volumes page.
Questions and answers
How often do flights leave PDX on time?
82.7% of the 63,282 scheduled domestic departures in the 12 months to July 2026 left less than 15 minutes late; the national figure was 76.1%. 0.7% were cancelled.
How often do flights arrive at PDX on time?
80.4% of 63,274 scheduled arrivals were on time by the BTS definition, against 76.0% nationally.
Which airline has the highest on-time share at PDX?
Counting departures from PDX and whether they reached their destination on time, Delta Air Lines had the highest share (88.9% of 7,194 flights), then SkyWest Airlines (85.1%) and Alaska Airlines (82.5%). Carriers fly different routes at different hours, so the figures are not a like-for-like test.
What causes delays at PDX?
For departures from PDX that reached their destination 15 or more minutes late, carriers attributed the delay minutes as follows: air carrier 37%, late-arriving aircraft 36%, national aviation system 24%, extreme weather 3%, security 0%.
What time of day has the highest on-time share at PDX?
Departures scheduled from 5 am to 6 am local time left on time 94.4% of the time, the highest of any hour with enough flights to compare; 3 pm to 4 pm was lowest at 75.0%.
Is it getting better?
On-time departures for the 12 months to July 2026 were 82.7%, down 1.9 points on the previous 12 months (84.6%). The monthly chart shows each of the last 36 months, and each month has its own page.
Does this page show today's delays at PDX?
No. BTS publishes on-time records about two months after the month ends, so this page is a monthly history through July 2026. For live conditions use the FAA airport status service or your airline.
Provenance
Source: Bureau of Transportation Statistics, Reporting Carrier On-Time Performance (1987 to present), monthly files August 2023 to July 2026; airport name from the BTS airport lookup table. US government works in the public domain. Domestic scheduled flights by reporting carriers only: international flights, charters and smaller carriers are not in the source. Totals and averages only; no individual flight or aircraft is identified. See the methodology; report processing errors through corrections.