Historical on-time performance

PHXSEA

Phoenix to Seattle

1,107 miData through Dec 2025Source: US DOT · BTS

Flights on PHX–SEA arrive on time 81% of the time over the last 12 months.

On-time rate81%arrived within 15 min

Median delayon timetypical arrival

p90 delay30 min1 in 10 flights is worsetail risk

Cancelled0.5%of scheduled flights

based on 7,059 flights over the last 12 months. On-time means arriving within 15 minutes (BTS standard).

By airline

How each carrier compares

Airline	On-time	Median	p90	Cancel	Flights
Delta Air Linesbest	89%	on time	15 min	0.3%	1,769
Envoy Air	84%	on time	25 min	0.0%	297
SkyWest Airlines	78%	on time	40 min	0.2%	992
Alaska Airlines	80%	on time	30 min	0.7%	2,870
American Airlines⚠ low data	77%	on time	25 min	0.0%	30
Southwest Airlines	70%	on time	40 min	0.4%	1,039
Frontier Airlines⚠ low data	76%	on time	25 min	1.6%	62

Delta Air Linesbest
On-time89%
Medianon time
p9015 min
Cancel0.3%
Flights1,769
Envoy Air
On-time84%
Medianon time
p9025 min
Cancel0.0%
Flights297
SkyWest Airlines
On-time78%
Medianon time
p9040 min
Cancel0.2%
Flights992
Alaska Airlines
On-time80%
Medianon time
p9030 min
Cancel0.7%
Flights2,870
American Airlines
On-time77%
Medianon time
p9025 min
Cancel0.0%
Flights30
Southwest Airlines
On-time70%
Medianon time
p9040 min
Cancel0.4%
Flights1,039
Frontier Airlines
On-time76%
Medianon time
p9025 min
Cancel1.6%
Flights62

Why flights run late

Delay causes

Airline35%
Weather3%
Air traffic (NAS)16%
Late aircraft46%
Security0%

Most delay minutes here are attributed to Late aircraft.

Over time

On-time trend

By season

On-time rate by month

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Related pages

Delay predictorfor this route→PHX airportPhoenix→SEA airportSeattle→Spirit Airlines on this routecarrier detail→Spirit Airlinesairline profile→