ON TIMEBOARD

PUW Pullman-Moscow delays

Pullman-Moscow Regional Airport, Pullman, WA. Every scheduled departure, September 2025 to August 2026.

On time
82%
departing flights, arrival < 15 min late
Left on time
82%
gate departure < 15 min late
Cancelled
1.6%
1,245 departures
Taxi out
15m
gate to wheels-up

82% of flights leaving Pullman (PUW) arrived on time over the past 12 months, 6 points better than the national average of 76%. About 3 flights leave PUW on a typical day; 1.6% were cancelled. 82% pushed back from the gate on time, so most of the lateness is already there when the flight leaves the gate.

At a glance

How late?

The on-time rate treats a flight 20 minutes late the same as one 5 hours late. Here's the split for flights leaving PUW: when a flight was late, it was under 45 minutes late 61% of the time. About 1 in 21 flights landed an hour or more late, and 1 in 156 three hours or more; 1.6% were cancelled outright.

Share of all 1,245 scheduled flights, past 12 months, by arrival time against schedule.

Best time of day to fly out of PUW

Not enough flights at each hour to compare times of day reliably.

40%70%100%5 a.m. departures: 91% on time (291 flights)915a6 a.m. departures: too few flights (74 flights)6a7 a.m. departures: too few flights7a8 a.m. departures: too few flights8a9 a.m. departures: too few flights9a10 a.m. departures: too few flights10a11 a.m. departures: too few flights (13 flights)11anoon departures: too few flights12p1 p.m. departures: 83% on time (117 flights)831p2 p.m. departures: 66% on time (154 flights)662p3 p.m. departures: 75% on time (127 flights)753p4 p.m. departures: too few flights (55 flights)4p5 p.m. departures: too few flights (74 flights)5p6 p.m. departures: too few flights (30 flights)6p7 p.m. departures: 78% on time (245 flights)787p8 p.m. departures: too few flights (65 flights)8p
PUW departures, share arriving on time, by scheduled local departure hour, past 12 months.
82%+ on time76–82%68–76%under 68%too few flights

Hour × month

Each cell: on-time rate for that departure hour in that calendar month, 2023–2026. Find your travel month, then look along the row for the greenest hour.

Best and worst months

January is the hardest month at PUW, with 69% of flights on time across 2023–2026; April is the best at 90%. Summer (June–August) runs 8 points worse than autumn: heavy schedules, peak loads and afternoon thunderstorms. Winter costs 11 points against autumn. Cancellations peak in February (4.0% of flights).

40%70%100%Jan: 69% on time (304 flights)69JanFeb: 72% on time (277 flights)72FebMar: 85% on time (311 flights)85MarApr: 90% on time (304 flights)90AprMay: 80% on time (274 flights)80MayJun: 75% on time (238 flights)75JunJul: 78% on time (244 flights)78JulAug: 75% on time (266 flights)75AugSep: 85% on time (274 flights)85SepOct: 84% on time (309 flights)84OctNov: 83% on time (317 flights)83NovDec: 76% on time (346 flights)76Dec

Airlines at PUW

Alaska Airlines runs 100% of departures from PUW, so PUW is effectively its hub. When Alaska Airlines has a bad day, so does the airport.

AirlineDeparturesOn timeLeft on timeCancelledTypical arrival
Alaska Airlines1,24582%82%1.6%−5 min

Why flights are late at PUW

Airlines report a cause for every flight that arrives 15 or more minutes late. At PUW, 42% of delay minutes came from the airlines themselves: crew, maintenance, cleaning, fueling and baggage. Next is late-arriving aircraft at 41%.

Airline (crew, maintenance, ops) 42%Late inbound plane 41%Air traffic & airport (NAS) 13%Severe weather 4%

The average taxi from gate to takeoff is 15 minutes, shorter than at most large U.S. airports.

Month by month

50%75%100%Sep 2023Jan 2024Jan 2025Jan 2026Oct 2023: 80% on time, 0.0% cancelledNov 2023: 77% on time, 0.9% cancelledDec 2023: 85% on time, 0.9% cancelledJan 2024: 55% on time, 6.0% cancelledDec 2024: 76% on time, 5.2% cancelledJan 2025: 69% on time, 4.9% cancelledOct 2025: 90% on time, 2.7% cancelledNov 2025: 89% on time, 0.9% cancelledDec 2025: 68% on time, 4.0% cancelledJan 2026: 82% on time, 1.0% cancelledMar 2026: 86% on time, 1.7% cancelledApr 2026: 89% on time, 0.0% cancelledMay 2026: 80% on time, 1.0% cancelled
Share of flights on time, by month (hover a point for cancellations)

Last flights of the day

The last flight of the day is a different bet. Across routes from PUW, each airline's final departure was cancelled 2.2% of the time, against 1.3% for its earlier flights (1.7× as often). Late in the day crews run short on duty hours, aircraft arrive late from elsewhere, and with no later flight to fold passengers into, cancelling is easier for the airline. 0.5% of last flights landed 3+ hours late. The riskiest last flight out was Alaska Airlines to Seattle (2.2% cancelled).

Last flight toAirlineLeavesCancelled3h+ lateOn time
SEA SeattleAlaska Airlines7:23 p.m.2.2%0.5%79%

Each airline's last scheduled departure of the day on a route, on days it flies the route at least twice; past 12 months. Riskiest first.

Tips for flying out of PUW

Routes from PUW

Least reliable first. Routes with at least 365 flights a year.

ToFlightsOn timeCancelledTypical arrival
SEA Seattle1,05181%1.6%−4 min

Flights into PUW

Arriving rather than leaving? These are the routes into Pullman-Moscow, least reliable first. The weakest is from Seattle (84% on time).

FromFlightsOn timeCancelled
SEA Seattle1,05184%1.6%

Questions about PUW delays

What month has the most flight delays at PUW?

January (69% on time). April is the best month (90%).

Why are flights delayed at PUW?

The biggest cause was the airlines themselves (42% of delay minutes): crew, maintenance, cleaning, fueling and baggage. Then late-arriving aircraft (41%).

How often are flights cancelled at PUW?

1.6% of scheduled departures over the past 12 months, peaking in February at 4.0%.

Hours are scheduled local departure times. "On time" means arriving less than 15 minutes late at the destination; cancelled and diverted flights count as not on time. Method.