SAN to PDX flight delays & on-time performance
Nonstop flights from San Diego International Airport to Portland International Airport · 933 miles · Aug 2025 – Jul 2026
- SAN: Airport closed. Closed, expected to reopen Oct 11 at 13:00 UTC.
On-time arrivals
84%
arrived < 15 min late
Cancelled
1.0%
18 flights
Avg arrival delay
9 min
52 min when late
Airlines
3
1,776 flights tracked
Key facts
- Flights from San Diego (SAN) to Portland (PDX) arrived on time 84% of the time in Aug 2025 – Jul 2026, better than the 78% national average.
- 1% were cancelled, and 4% arrived an hour or more late.
- Alaska Airlines was the most punctual airline here (86% on time); Southwest Airlines was the least (60%).
- Departures scheduled around 7am did best (93% on time); around 5pm did worst (75%).
- Saturday was the most reliable day to fly (90% on time) and Friday the least (77%).
- The largest source of delay minutes was late-arriving aircraft (59%).
Which airline is most on time from SAN to PDX?
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 |
|---|---|---|---|---|---|
| SkyWest AirlinesRegional airline operating flights for United Express, Delta Connection, American Eagle and Alaska. | 87% | 0.0% | 10 min | 3.3% | 30 |
| Alaska Airlines | 86% | 1.1% | 9 min | 3.7% | 1,586 |
| Southwest Airlines | 60% | 0.0% | 17 min | 6.3% | 160 |
Best time of day to fly
On-time arrival rate by scheduled departure hour (local time).
- 6am92%84 flights
- 7am93%238 flights
- 10am89%256 flights
- 11am85%147 flights
- 1pm77%70 flights
- 2pm81%351 flights
- 3pm36%36 flights
- 4pm97%33 flights
- 5pm75%68 flights
- 6pm82%264 flights
- 7pm65%37 flights
- 8pm81%76 flights
- 9pm86%112 flights
Best day of the week
On-time arrival rate by day of departure.
- Monday83%0.4% cancelled
- Tuesday90%0.8% cancelled
- Wednesday86%1.3% cancelled
- Thursday82%0.8% cancelled
- Friday77%1.5% cancelled
- Saturday90%1.7% cancelled
- Sunday81%0.7% cancelled
On-time trend by month
Why flights are late
Share of delay minutes by cause, as reported by airlines to the DOT.
- Late-arriving aircraft59%
- Airline (crew, maintenance, cleaning, fueling)30%
- Air traffic control & airport congestion9%
- Extreme weather1%
- Security0%
Why flights are cancelled
Share of cancellations by reason.
- Airline (crew, maintenance, cleaning, fueling)50%
- Extreme weather44%
- Air traffic control & airport congestion6%
- Security0%
SAN to PDX: common questions
- How often are SAN to PDX flights on time?
- 84% 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 San Diego to Portland cancelled?
- 1.0% of scheduled flights were cancelled (18 of 1,776).
- How long are typical delays?
- Across all flights the average arrival delay was 9 min (early arrivals count as zero). Flights that were late arrived 52 min behind schedule on average, and 3.9% of flights were an hour or more late.
- How long is taxi time at SAN?
- Flights on this route spent 23 min taxiing from the gate to takeoff on average.
Related routes
Return trip: PDX to SAN — 77% on time
More flights from San Diego
Data: U.S. DOT Bureau of Transportation Statistics, Aug 2025 – Jul 2026 (12 months). Latest month published by BTS: July 2026. Route: SAN → PDX, nonstop flights by US airlines that report to the DOT. How we calculate this.