Flight AS539
Alaska Airlines flight AS539
Looking for AS539 in the air…
Alerts at this flight's airports
-
Read the story →
Watch Ground Delay Program SAN
Ground Delay Program at San Diego International Airport (SAN): Average 37 minutes, up to 1 hour and 11 minutes
Reason: airport volume
Airport status
Seattle (SEA) to San Jose (SJC)
Historically, this flight arrives 15+ minutes late 27% of the time, and when it is late the delay averages 47 minutes. It was cancelled 0.0% of the time.
- On-time arrivals
- 72.9%
- Less than 15 minutes late
- Cancelled
- 0.0%
- Of scheduled flights
- Average delay when late
- 47 min
- Flights arriving 15+ minutes late
- Flights tracked
- 70
- Scheduled flights in the period
What caused the delays
- Late-arriving aircraft 79%
- Airline (crew, maintenance, cleaning) 18%
- Air traffic control & airport 3%
- Extreme weather 0%
- Security 0%
Share of delay minutes airlines attributed to each cause (BTS).
Portland (PDX) to Dallas-Fort Worth (DFW)
Historically, this flight arrives 15+ minutes late 8% of the time, and when it is late the delay averages 37 minutes. It was cancelled 0.0% of the time.
- On-time arrivals
- 92.2%
- Less than 15 minutes late
- Cancelled
- 0.0%
- Of scheduled flights
- Average delay when late
- 37 min
- Flights arriving 15+ minutes late
- Flights tracked
- 52
- Scheduled flights in the period
What caused the delays
- Air traffic control & airport 89%
- Airline (crew, maintenance, cleaning) 11%
- Late-arriving aircraft 0%
- Extreme weather 0%
- Security 0%
Share of delay minutes airlines attributed to each cause (BTS).
Boston (BOS) to San Diego (SAN)
Historically, this flight arrives 15+ minutes late 4% of the time, and when it is late the delay averages 32 minutes. It was cancelled 0.0% of the time.
- On-time arrivals
- 96.4%
- Less than 15 minutes late
- Cancelled
- 0.0%
- Of scheduled flights
- Average delay when late
- 32 min
- Flights arriving 15+ minutes late
- Flights tracked
- 28
- Scheduled flights in the period
What caused the delays
- Late-arriving aircraft 100%
- Airline (crew, maintenance, cleaning) 0%
- Air traffic control & airport 0%
- Extreme weather 0%
- Security 0%
Share of delay minutes airlines attributed to each cause (BTS).
Palm Springs (PSP) to Seattle (SEA)
Historically, this flight arrives 15+ minutes late 19% of the time, and when it is late the delay averages 97 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
- 97 min
- Flights arriving 15+ minutes late
- Flights tracked
- 22
- Scheduled flights in the period
What caused the delays
- Late-arriving aircraft 79%
- Air traffic control & airport 16%
- Airline (crew, maintenance, cleaning) 5%
- Extreme weather 0%
- Security 0%
Share of delay minutes airlines attributed to each cause (BTS).
Los Angeles (LAX) to San Francisco (SFO)
Only 10 flights on record, which is too few for reliable odds.
- On-time arrivals
- 11.1%
- Less than 15 minutes late
- Cancelled
- 10.0%
- Of scheduled flights
- Average delay when late
- 39 min
- Flights arriving 15+ minutes late
- Flights tracked
- 10
- Scheduled flights in the period
What caused the delays
- Air traffic control & airport 82%
- Extreme weather 18%
- Airline (crew, maintenance, cleaning) 0%
- Late-arriving aircraft 0%
- Security 0%
Share of delay minutes airlines attributed to each cause (BTS).
Boise (BOI) to Seattle (SEA)
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
More headlines →-
Los Angeles World Airports partners with local brands to transform its dining and retail offering at LAX
Future Travel Experience LAX
-
Los Angeles International Airport Departures
Flightradar24 LAX
-
LAX People Mover Delayed to 2027, More Travel News
Eye of the Flyer LAX
-
LAX roasted over absurd Starbucks pricing — one of the worst markups in the country
New York Post LAX
-
Outrageous new report puts LAX in interesting company
New York Post LAX
-
LAX ranked most reliable airport in U.S. in 2026: Report
AOL.com LAX
Headlines found by Google News; stories open on the publisher's site.
Show as table
| Month | On time | Flights |
|---|---|---|
| October 2025 | 83.3% | 25 |
| November 2025 | 95.0% | 21 |
| December 2025 | 90.9% | 22 |
| January 2026 | 100.0% | 5 |
| March 2026 | 100.0% | 1 |
| April 2026 | 0.0% | 1 |
| May 2026 | 94.7% | 19 |
| June 2026 | 80.0% | 30 |
| July 2026 | 83.9% | 31 |
| August 2026 | 40.7% | 28 |
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