Phoenix (PHX) to Seattle (SEA) flights

Alaska Airlines, Delta Air Lines, Envoy Air, Southwest Airlines fly nonstop from Phoenix Sky Harbor International Airport to Seattle-Tacoma International Airport, with about 130 flights a week in July 2026. The 1,107-mile flight takes about 3h 6m gate to gate.

From

PHX

Phoenix

Phoenix Sky Harbor International Airport

SEA

Seattle

Seattle-Tacoma International Airport

Distance: 1,107 mi · 1,782 km
Flight time: 3h 6m
Airlines: 4
Seats filled: 84%

Flights a week, July 2026

7,180 flights and 908,036 passengers in 12 months

Map data: Natural Earth. Lines follow the shortest (great-circle) path.

Airlines flying PHX to SEA

Airline	Flights a week	Aircraft	Passengers (12 months)	Flight time
Alaska Airlines	44	Boeing 737-900ER, Boeing 737 MAX 9, Boeing 737-800	423,383	3h 8m
Delta Air Lines	34	Boeing 737-800, Airbus A220-300, Boeing 737-900ER	218,076	3h 3m
Envoy Air	27	Embraer E175	50,044	3h 7m
Southwest Airlines	24	Boeing 737 MAX 8, Boeing 737-800, Boeing 737-700 / MAX 7	145,953	2h 59m
SkyWest AirlinesSeasonal or ended	n/a	Embraer E175, Bombardier CRJ700, Bombardier CRJ900	26,448	3h 19m
American AirlinesSeasonal or ended	n/a	Airbus A319, Airbus A320-100/200, Airbus A321	22,517	3h 14m
Frontier AirlinesSeasonal or ended	n/a	Airbus A320neo, Airbus A321, Airbus A320-100/200	21,615	3h 12m

Airlines are the operating carrier: regional airlines such as SkyWest or Horizon often fly under a larger airline's brand.

PHX to SEA flight schedule

32 flight numbers flew this route in August 2026, 12 of them almost daily. The first usually leaves at 6:02am and the last at 9:45pm. Times are local and can change; check with the airline before you book.

Flight	Departs	Arrives	Days flown in August 2026	On time (12 months)
AS 605Alaska Airlines	6:02am	9:05am	13	93%
AS 799Alaska Airlines	6:02am	9:08am	10	83%
DL 1570Delta Air Lines	6:59am	10:05am	31	90%
WN 2964Southwest Airlines	7:05am	10:10am	12	83%
AA 4081American Airlines · operated by Envoy Air	7:15am	10:29am	27	90%
AA 3793American Airlines · operated by Envoy Air	7:20am	10:36am	4	87%
AS 645Alaska Airlines	7:20am	10:29am	31	85%
WN 1040Southwest Airlines	9:00am	12:05pm	4	n/a
WN 2474Southwest Airlines	9:00am	12:05pm	12	58%
AS 637Alaska Airlines	9:10am	12:17pm	31	84%
DL 2374Delta Air Lines	9:14am	12:25pm	31	89%
AA 2524American Airlines	11:20am	2:28pm	27	85%
WN 4742Southwest Airlines	11:20am	2:20pm	4	n/a
AS 603Alaska Airlines	11:23am	2:30pm	31	87%
AA 3440American Airlines · operated by Envoy Air	11:32am	2:46pm	4	85%
DL 2419Delta Air Lines	12:12pm	3:23pm	31	93%
WN 3669Southwest Airlines	2:05pm	5:05pm	12	83%
WN 3258Southwest Airlines	2:30pm	5:30pm	8	n/a
AA 3934American Airlines · operated by Envoy Air	2:34pm	5:46pm	4	89%
AA 4035American Airlines · operated by Envoy Air	2:35pm	5:44pm	4	80%
AS 425Alaska Airlines	2:37pm	5:43pm	18	74%
DL 2449Delta Air Lines	3:59pm	7:05pm	31	83%
AS 289Alaska Airlines	4:00pm	7:06pm	17	68%
AS 401Alaska Airlines	4:06pm	7:14pm	11	87%
WN 995Southwest Airlines	4:30pm	7:30pm	4	n/a
AA 4307American Airlines · operated by Envoy Air	5:00pm	8:10pm	31	83%
DL 2442Delta Air Lines	5:42pm	8:48pm	31	82%
WN 3267Southwest Airlines	6:15pm	9:15pm	12	70%
AS 1348Alaska Airlines	6:39pm	9:47pm	13	58%
AS 611Alaska Airlines	6:53pm	10:00pm	30	82%
AS 746Alaska Airlines	8:51pm	11:59pm	8	n/a
WN 4065Southwest Airlines	9:45pm	12:40am	12	50%

Is PHX to SEA on time?

From September 2025 to August 2026, 82% of 7,202 flights arrived within 15 minutes of schedule and 0.7% were cancelled. Flights leaving around 6am were the most punctual (93%), those around 6pm the least (72%). Most delay time was caused by late-arriving aircraft (47%).

Airline	Flights	On time	Average delay	Cancelled
Alaska Airlines	2,886	84%	10 min	0.8%
Delta Air Lines	1,767	88%	10 min	1%
American Airlines	1,394	85%	9 min	0.2%
Southwest Airlines	1,039	62%	18 min	0.8%
Frontier Airlines	116	84%	15 min	0%

Airlines as sold: flights operated by regional partners count under the airline on the ticket. Average delay is across all completed flights, early arrivals counted as zero.

On-time arrivals by departure time

Scheduled departure	Flights	On time
6am to 7am	516	93%
7am to 8am	695	88%
8am to 9am	590	83%
9am to 10am	480	78%
10am to 11am	275	84%
11am to 12pm	638	86%
12pm to 1pm	461	89%
1pm to 2pm	242	82%
2pm to 3pm	622	82%
3pm to 4pm	517	79%
4pm to 5pm	355	80%
5pm to 6pm	653	79%
6pm to 7pm	362	72%
7pm to 8pm	320	85%
8pm to 9pm	156	75%

Flights by month

Month	Flights	Passengers
August 2025	582	74,290
September 2025	540	66,222
October 2025	597	71,769
November 2025	592	71,965
December 2025	625	78,258
January 2026	580	67,720
February 2026	566	70,134
March 2026	668	90,073
April 2026	666	84,564
May 2026	621	82,906
June 2026	569	76,527
July 2026	575	73,656

Source: US Department of Transportation, T-100 Segment data, August 2025 to July 2026.