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Flight AS504

Alaska Airlines flight AS504

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  • Advisory Coastal Flood Advisory OAK, SFO, SQL, STS

    COASTAL FLOOD ADVISORY REMAINS IN EFFECT UNTIL 1 PM PST MONDAY

    Weather

Los Angeles (LAX) to Seattle (SEA)

Historically, this flight arrives 15+ minutes late 14% of the time, and when it is late the delay averages 38 minutes. It was cancelled 1.4% of the time.

On-time arrivals
86.3%
Less than 15 minutes late
Cancelled
1.4%
Of scheduled flights
Average delay when late
38 min
Flights arriving 15+ minutes late
Flights tracked
74
Scheduled flights in the period

What caused the delays

  • Airline (crew, maintenance, cleaning) 56%
  • Air traffic control & airport 44%
  • Late-arriving aircraft 0%
  • Extreme weather 0%
  • Security 0%

Share of delay minutes airlines attributed to each cause (BTS).

Portland (PDX) to San Francisco (SFO)

Historically, this flight arrives 15+ minutes late 45% of the time, and when it is late the delay averages 49 minutes. It was cancelled 0.0% of the time.

On-time arrivals
55.1%
Less than 15 minutes late
Cancelled
0.0%
Of scheduled flights
Average delay when late
49 min
Flights arriving 15+ minutes late
Flights tracked
69
Scheduled flights in the period

What caused the delays

  • Air traffic control & airport 41%
  • Late-arriving aircraft 39%
  • Airline (crew, maintenance, cleaning) 20%
  • Extreme weather 0%
  • Security 0%

Share of delay minutes airlines attributed to each cause (BTS).

Nashville (BNA) to Seattle (SEA)

Historically, this flight arrives 15+ minutes late 29% of the time, and when it is late the delay averages 118 minutes. It was cancelled 0.0% of the time.

On-time arrivals
70.6%
Less than 15 minutes late
Cancelled
0.0%
Of scheduled flights
Average delay when late
118 min
Flights arriving 15+ minutes late
Flights tracked
34
Scheduled flights in the period

What caused the delays

  • Airline (crew, maintenance, cleaning) 69%
  • Air traffic control & airport 31%
  • Late-arriving aircraft 0%
  • Extreme weather 0%
  • Security 0%

Share of delay minutes airlines attributed to each cause (BTS).

Seattle (SEA) to Palm Springs (PSP)

Historically, this flight arrives 15+ minutes late 19% of the time, and when it is late the delay averages 92 minutes. It was cancelled 4.5% of the time.

On-time arrivals
81.0%
Less than 15 minutes late
Cancelled
4.5%
Of scheduled flights
Average delay when late
92 min
Flights arriving 15+ minutes late
Flights tracked
22
Scheduled flights in the period

What caused the delays

  • Airline (crew, maintenance, cleaning) 87%
  • Late-arriving aircraft 13%
  • Air traffic control & airport 0%
  • Extreme weather 0%
  • Security 0%

Share of delay minutes airlines attributed to each cause (BTS).

Seattle (SEA) to Nashville (BNA)

Only 13 flights on record, which is too few for reliable odds.

On-time arrivals
92.3%
Less than 15 minutes late
Cancelled
0.0%
Of scheduled flights
Average delay when late
34 min
Flights arriving 15+ minutes late
Flights tracked
13
Scheduled flights in the period

What caused the delays

  • Late-arriving aircraft 96%
  • Air traffic control & airport 4%
  • Airline (crew, maintenance, cleaning) 0%
  • Extreme weather 0%
  • Security 0%

Share of delay minutes airlines attributed to each cause (BTS).

Seattle (SEA) to Kailua-Kona (KOA)

Only 11 flights on record, which is too few for reliable odds.

On-time arrivals
90.9%
Less than 15 minutes late
Cancelled
0.0%
Of scheduled flights
Average delay when late
29 min
Flights arriving 15+ minutes late
Flights tracked
11
Scheduled flights in the period

What caused the delays

  • Airline (crew, maintenance, cleaning) 100%
  • Late-arriving aircraft 0%
  • Air traffic control & airport 0%
  • Extreme weather 0%
  • Security 0%

Share of delay minutes airlines attributed to each cause (BTS).

Seattle (SEA) to Houston (IAH)

Only 1 flight on record, which is too few for reliable odds.

On-time arrivals
100.0%
Less than 15 minutes late
Cancelled
0.0%
Of scheduled flights
Average delay when late
—
Flights arriving 15+ minutes late
Flights tracked
1
Scheduled flights in the period

In the news

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On-time arrivals by month
Oct 2025 Aug 2026
Show as table
MonthOn timeFlights
October 2025 85.2% 28
November 2025 100.0% 1
December 2025 84.6% 26
January 2026 79.3% 30
February 2026 89.3% 28
March 2026 58.8% 17
April 2026 90.9% 11
May 2026 100.0% 1
June 2026 61.9% 21
July 2026 56.7% 30
August 2026 64.5% 31

Source: U.S. DOT Bureau of Transportation Statistics on-time data, September 2025 – August 2026. Covers flights operated by reporting U.S. carriers. About our data

Latest airport & airline headlines

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Headlines found by Google News; stories open on the publisher's site.