Historical on-time performance

SEAPHX

Seattle to Phoenix

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

Flights on SEA–PHX arrive on time 78% of the time over the last 12 months.

On-time rate78%arrived within 15 min

Median delayon timetypical arrival

p90 delay35 min1 in 10 flights is worsetail risk

Cancelled0.4%of scheduled flights

based on 7,028 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
SkyWest Airlines	82%	on time	30 min	0.2%	992
Delta Air Linesbest	85%	on time	25 min	0.3%	1,768
Envoy Air	79%	on time	35 min	0.0%	296
Southwest Airlines	76%	on time	35 min	0.6%	1,037
Alaska Airlines	74%	on time	35 min	0.6%	2,873
Frontier Airlines⚠ low data	73%	on time	55 min	1.6%	62

SkyWest Airlines
On-time82%
Medianon time
p9030 min
Cancel0.2%
Flights992
Delta Air Linesbest
On-time85%
Medianon time
p9025 min
Cancel0.3%
Flights1,768
Envoy Air
On-time79%
Medianon time
p9035 min
Cancel0.0%
Flights296
Southwest Airlines
On-time76%
Medianon time
p9035 min
Cancel0.6%
Flights1,037
Alaska Airlines
On-time74%
Medianon time
p9035 min
Cancel0.6%
Flights2,873
Frontier Airlines
On-time73%
Medianon time
p9055 min
Cancel1.6%
Flights62

Why flights run late

Delay causes

Airline46%
Weather1%
Air traffic (NAS)21%
Late aircraft32%
Security0%

Most delay minutes here are attributed to Airline.

Over time

On-time trend

By season

On-time rate by month

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Related pages

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