Seattle (SEA) to Los Angeles (LAX) flights

Alaska Airlines, Delta Air Lines, United Airlines, SkyWest Airlines, Frontier Airlines, American Airlines fly nonstop from Seattle-Tacoma International Airport to Los Angeles International Airport, with about 151 flights a week in July 2026. The 954-mile flight takes about 2h 43m gate to gate.

From

SEA

Seattle

Seattle-Tacoma International Airport

LAX

Los Angeles

Los Angeles International Airport

Distance: 954 mi · 1,535 km
Flight time: 2h 43m
Airlines: 6
Seats filled: 78%

Flights a week, July 2026

7,436 flights and 903,994 passengers in 12 months

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

Airlines flying SEA to LAX

Airline	Flights a week	Aircraft	Passengers (12 months)	Flight time
Alaska Airlines	70	Boeing 737 MAX 9, Boeing 737-900ER, Boeing 737-800	440,948	2h 42m
Delta Air Lines	46	Boeing 737-800, Boeing 737-900ER, Airbus A321	289,475	2h 41m
United Airlines	14	Boeing 737 MAX 9, Boeing 737 MAX 8, Airbus A320-100/200	50,776	2h 42m
SkyWest Airlines	13	Bombardier CRJ700, Embraer E175	66,520	2h 52m
Frontier Airlines	7	Airbus A321, Airbus A320neo, Airbus A320-100/200	53,206	2h 44m
American Airlines	<1	Boeing 737-800, Airbus A321	2,237	2h 40m
Horizon AirSeasonal or ended	n/a	Embraer E175	832	2h 37m

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

SEA to LAX flight schedule

32 flight numbers flew this route in August 2026, 19 of them almost daily. The first usually leaves at 6:00am 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)
UA 1692United Airlines	6:00am	8:44am	8	83%
AS 505Alaska Airlines	6:03am	8:47am	31	83%
UA 6053United Airlines · operated by SkyWest Airlines	6:30am	9:34am	19	84%
AA 4896American Airlines · operated by SkyWest Airlines	7:00am	10:10am	31	88%
DL 1628Delta Air Lines	7:16am	10:05am	31	91%
AS 717Alaska Airlines	7:26am	10:20am	17	87%
AS 1306Alaska Airlines	9:35am	12:27pm	11	90%
DL 2769Delta Air Lines	9:59am	12:42pm	31	84%
AS 1367Alaska Airlines	10:03am	12:56pm	18	70%
F9 1178Frontier Airlines	10:34am	1:34pm	31	82%
AS 487Alaska Airlines	11:15am	2:01pm	26	61%
AA 4988American Airlines · operated by SkyWest Airlines	11:40am	2:40pm	27	59%
UA 4729United Airlines · operated by SkyWest Airlines	12:15pm	3:21pm	20	90%
DL 2914Delta Air Lines	12:36pm	3:24pm	31	84%
AS 502Alaska Airlines	12:38pm	3:25pm	18	83%
AS 696Alaska Airlines	1:38pm	4:25pm	31	79%
AA 6324American Airlines · operated by SkyWest Airlines	2:20pm	5:18pm	4	70%
AS 793Alaska Airlines	2:30pm	5:17pm	13	62%
DL 2830Delta Air Lines	2:50pm	5:33pm	31	84%
AS 1300Alaska Airlines	3:59pm	6:44pm	31	75%
UA 5577United Airlines · operated by SkyWest Airlines	4:30pm	7:36pm	14	86%
UA 1218United Airlines	4:45pm	7:34pm	9	n/a
AA 6438American Airlines · operated by SkyWest Airlines	5:02pm	7:55pm	27	79%
AS 492Alaska Airlines	5:10pm	7:55pm	26	76%
DL 2861Delta Air Lines	5:50pm	8:33pm	31	74%
AS 524Alaska Airlines	6:10pm	9:00pm	27	79%
AS 63Alaska Airlines	6:10pm	8:59pm	21	71%
UA 1730United Airlines	6:52pm	9:41pm	22	84%
AS 496Alaska Airlines	7:10pm	9:59pm	13	61%
DL 2854Delta Air Lines	7:55pm	10:45pm	31	75%
AS 1390Alaska Airlines	9:18pm	12:05am	12	70%
DL 2512Delta Air Lines	9:45pm	12:32am	17	70%

Is SEA to LAX on time?

From September 2025 to August 2026, 82% of 7,544 flights arrived within 15 minutes of schedule and 0.8% were cancelled. Flights leaving around 7am were the most punctual (90%), those around 11am the least (73%). Most delay time was caused by the airline (crew, maintenance, cleaning, fuelling) (46%).

Airline	Flights	On time	Average delay	Cancelled
Alaska Airlines	3,305	80%	9 min	0.9%
Delta Air Lines	2,229	82%	12 min	0.6%
United Airlines	977	91%	7 min	0.5%
American Airlines	725	79%	28 min	0.6%
Frontier Airlines	308	80%	13 min	2.9%

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	696	86%
7am to 8am	733	90%
8am to 9am	286	91%
9am to 10am	372	82%
10am to 11am	581	85%
11am to 12pm	397	73%
12pm to 1pm	613	90%
1pm to 2pm	244	80%
2pm to 3pm	495	80%
3pm to 4pm	295	76%
4pm to 5pm	259	87%
5pm to 6pm	979	81%
6pm to 7pm	370	79%
7pm to 8pm	523	78%
8pm to 9pm	334	71%
9pm to 10pm	326	73%

Flights by month

Month	Flights	Passengers
August 2025	637	90,056
September 2025	608	73,367
October 2025	615	72,852
November 2025	597	66,226
December 2025	625	75,388
January 2026	562	62,244
February 2026	557	63,622
March 2026	626	70,072
April 2026	610	73,519
May 2026	681	78,802
June 2026	652	83,841
July 2026	669	94,146

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