ON TIMEBOARD

PDX → RNO on time

Portland (Portland, OR) to Reno Tahoe (Reno, NV). Every scheduled flight, September 2025 to August 2026.

On time
88%
arrived < 15 min late
Cancelled
0.7%
1,005 flights
Typical arrival
−6 min
median vs schedule
When late
+53 min
average delay
Flights / day
3
1 airline

88% of flights from Portland to Reno arrived on time over the past 12 months. That is better than the typical U.S. route. The 7 a.m. departures ran on time 92% of the time; the 5 p.m. ones 83%. 3% of flights arrived more than an hour late or not at all.

How late?

The on-time rate treats a flight 20 minutes late the same as one 5 hours late. Here's the split for PDX → RNO: when a flight was late, it was under 45 minutes late 69% of the time. About 1 in 46 flights landed an hour or more late, and 1 in 201 three hours or more; 0.7% were cancelled outright.

Share of all 1,005 scheduled flights, past 12 months, by arrival time against schedule.

By airline

AirlineFlightsOn timeCancelledTypical arrival1h+ lateAvg when lateOperated by
Alaska Airlines1,00588%0.7%−6 min2.2%+53 minHorizon Air 68%, Alaska Airlines 22%, SkyWest 10%

Airline = the name on the ticket. Regional flights (e.g. "Delta Connection") count under the ticketing airline, and the operator is listed.

Best time of day to fly

On-time rate by scheduled departure hour (local time at PDX). Delays build through the day as late planes knock on, so early flights usually do best.

40%70%100%7 a.m. departures: 92% on time (275 flights)927a8 a.m. departures: too few flights (21 flights)8a9 a.m. departures: too few flights9a10 a.m. departures: too few flights (64 flights)10a11 a.m. departures: too few flights (5 flights)11anoon departures: too few flights12p1 p.m. departures: too few flights (33 flights)1p2 p.m. departures: 91% on time (150 flights)912p3 p.m. departures: 86% on time (133 flights)863p4 p.m. departures: too few flights4p5 p.m. departures: 83% on time (218 flights)835p6 p.m. departures: too few flights (43 flights)6p7 p.m. departures: too few flights7p8 p.m. departures: too few flights8p9 p.m. departures: too few flights (63 flights)9p
PDX → RNO, share of flights arriving on time, by departure hour. Hours with under 100 flights are greyed out.
82%+ on time76–82%68–76%under 68%too few flights

Last flight of the day

On PDX → RNO, each airline's last flight of the day was cancelled 0.5% of the time, against 0.8% for its earlier flights, so here the last flight is actually the safer one. It arrived 3+ hours late 1.1% of the time (earlier flights: 0.2%). It matters more than the numbers suggest. Miss an earlier flight and there's another one that evening; miss the last one and you're usually waiting until morning.

AirlineLast departureLast: cancelledLast: 3h+ lateEarlier: cancelledNext morning
Alaska Airlines5:55 p.m.0.5%1.1%0.8%first flight 7:00 a.m.

Last flight = the airline's last scheduled departure on this route that day, on days it flies the route at least twice; past 12 months. Times are typical scheduled times over the latest three months.

By month

Each calendar month pooled over 2023–2026. Best: October (92%). Worst: December (82%).

40%70%100%Jan: 86% on time (173 flights)86JanFeb: 83% on time (150 flights)83FebMar: 89% on time (180 flights)89MarApr: 91% on time (214 flights)91AprMay: 86% on time (275 flights)86MayJun: 89% on time (302 flights)89JunJul: 87% on time (331 flights)87JulAug: 87% on time (321 flights)87AugSep: 89% on time (268 flights)89SepOct: 92% on time (224 flights)92OctNov: 91% on time (230 flights)91NovDec: 82% on time (213 flights)82Dec

By day of week

DayFlightsOn timeCancelled
Monday14990%0.0%
Tuesday14389%0.7%
Wednesday14387%2.1%
Thursday14586%0.7%
Friday14691%0.7%
Saturday13488%0.0%
Sunday14588%0.7%

Why flights were late

Share of delay minutes on flights 15+ minutes late, as reported to BTS by the airlines.

Airline (crew, maintenance, ops) 45%Late inbound plane 42%Air traffic & airport (NAS) 12%

Cancellations: air traffic/airport 4 · weather 2 · airline 1

Month by month

60%80%100%Sep 2023Jan 2024Jan 2025Jan 2026Jun 2024: 86% on time, 0.0% cancelledJul 2024: 86% on time, 0.0% cancelledAug 2024: 90% on time, 0.9% cancelledJun 2025: 91% on time, 0.0% cancelledJul 2025: 87% on time, 0.0% cancelledAug 2025: 90% on time, 0.0% cancelledSep 2025: 87% on time, 0.0% cancelled
Share of flights on time, by month (hover a point for cancellations)
PDX → RNO, monthly on-time and cancellation rate.

Flight numbers on this route

Regular flights with at least 120 scheduled trips in the past year. Sorted by departure time.

FlightDepartsFlightsOn timeCancelledTypical arrivalOperated by
AS 20877:00 a.m.22588%0.4%−3 minHorizon Air

Worst days in the past year

DateFlightsOn timeCancelled
Aug 12, 202630%0
Dec 29, 2025333%0
Nov 12, 2025333%2
Aug 11, 2026333%0
Jun 18, 2026333%0

Questions

How often are flights from PDX to RNO on time?

88% of 1,005 scheduled flights from Portland, OR to Reno, NV arrived within 15 minutes of schedule between September 2025 and August 2026. 0.7% were cancelled.

What is the best time of day to fly PDX to RNO?

Flights scheduled to leave at 7 a.m. were the most reliable (92% on time). The 5 p.m. departures were the least (83%).

What month has the most delays from PDX to RNO?

December (82% on time). The best month is October (92%), over 2023–2026.

Is the last flight of the day from PDX to RNO more likely to be cancelled?

No, the opposite. Each airline's last PDX–RNO flight of the day was cancelled 0.5% of the time over the past year, against 0.8% for its earlier flights. If the last flight is cancelled, the next one is usually the following morning.

Related

Domestic flights by the airlines that report to the U.S. DOT, plus their regional partners. "On time" means arriving less than 15 minutes after schedule; cancelled and diverted flights count as not on time. Past performance is a guide, not a forecast. Method.