PDX to LAX flight delays & on-time performance
Nonstop flights from Portland International Airport to Los Angeles International Airport · 833 miles · Aug 2025 – Jul 2026
No FAA-reported ground stops or delays at PDX or LAX right now. Individual flights can still be delayed by the airline; check with your airline for your flight.
Key facts
- Flights from Portland (PDX) to Los Angeles (LAX) arrived on time 87% of the time in Aug 2025 – Jul 2026, better than the 78% national average.
- 0.7% were cancelled, and 4% arrived an hour or more late.
- Delta Air Lines was the most punctual airline here (90% on time); SkyWest Airlines was the least (80%).
- Departures scheduled around 12pm did best (92% on time); around 9pm did worst (82%).
- Wednesday was the most reliable day to fly (90% on time) and Sunday the least (85%).
- The largest source of delay minutes was airline (crew, maintenance, cleaning, fueling) (51%).
Which airline is most on time from PDX to LAX?
Ranked by on-time arrival rate. Regional airlines fly under their partner's brand (e.g. SkyWest for Delta Connection or United Express).
| Airline | On time | Cancelled | Avg delay | 1 hr+ late | Flights |
|---|---|---|---|---|---|
| Delta Air Lines | 90% | 0.9% | 10 min | 4.0% | 1,691 |
| Alaska Airlines | 86% | 0.5% | 8 min | 2.5% | 1,845 |
| Frontier Airlines | 84% | 1.8% | 8 min | 4.7% | 219 |
| SkyWest AirlinesRegional airline operating flights for United Express, Delta Connection, American Eagle and Alaska. | 80% | 0.3% | 24 min | 10.9% | 590 |
Best time of day to fly
On-time arrival rate by scheduled departure hour (local time).
- 6am89%511 flights
- 7am89%481 flights
- 10am87%697 flights
- 12pm92%235 flights
- 1pm88%295 flights
- 2pm85%447 flights
- 4pm82%92 flights
- 5pm85%826 flights
- 7pm88%131 flights
- 8pm86%197 flights
- 9pm82%264 flights
Best day of the week
On-time arrival rate by day of departure.
- Monday86%1.0% cancelled
- Tuesday86%0.0% cancelled
- Wednesday90%0.2% cancelled
- Thursday86%0.3% cancelled
- Friday86%1.2% cancelled
- Saturday90%0.6% cancelled
- Sunday85%1.4% cancelled
On-time trend by month
Why flights are late
Share of delay minutes by cause, as reported by airlines to the DOT.
- Airline (crew, maintenance, cleaning, fueling)51%
- Late-arriving aircraft39%
- Air traffic control & airport congestion9%
- Extreme weather1%
- Security0%
Why flights are cancelled
Share of cancellations by reason.
- Airline (crew, maintenance, cleaning, fueling)87%
- Extreme weather13%
- Air traffic control & airport congestion0%
- Security0%
PDX to LAX: common questions
- How often are PDX to LAX flights on time?
- 87% of flights arrived less than 15 minutes late in Aug 2025 – Jul 2026, compared with 78% for all US flights.
- How often are flights from Portland to Los Angeles cancelled?
- 0.7% of scheduled flights were cancelled (30 of 4,345).
- How long are typical delays?
- Across all flights the average arrival delay was 11 min (early arrivals count as zero). Flights that were late arrived 74 min behind schedule on average, and 4.3% of flights were an hour or more late.
- How long is taxi time at PDX?
- Flights on this route spent 16 min taxiing from the gate to takeoff on average.
Related routes
Return trip: LAX to PDX — 86% on time
More flights from Portland
Data: U.S. DOT Bureau of Transportation Statistics, Aug 2025 – Jul 2026 (12 months). Latest month published by BTS: July 2026. Route: PDX → LAX, nonstop flights by US airlines that report to the DOT. How we calculate this.