AS1258 Alaska Airlines - Flight Status

Codeshare Flights

The flight JL5423 from JAL (JL) is a codeshare flight operated by Alaska Airlines (AS) under the flight number AS1258. Check this page for details about flight AS1258.

Warning

This flight has been diverted and landed in a different airport than scheduled. Contact airline to obtain more information. This was the original destination:

San Diego (SAN) - San Diego International Airport

There is more than one flight with the same flight number on the same day. This is the other flight:

AS1258 Ontario (ONT) to San Diego (SAN) Departure: 12:20 pm Arrival: 01:31 pm Check flight

Below, you can find details about Alaska Airlines flight AS1258, which currently operates between the airports of Seattle - Seattle-Tacoma International Airport (Airport Code SEA) and Ontario - Ontario International Airport (Airport Code ONT).
This flight data pertains specifically to the flight's details for Thursday, September 18, 2025.

Table of contents:
Flight Status Codeshare Flights

AS1258 On Time performance:

We have calculated the percentage of flights that arrived within 15 minutes of their scheduled time, or earlier, based on real flight data from the last 3 months. More about punctuality and delays

Flight Status

AS1258 Alaska Airlines from Seattle

Landed - Delayed

Delay: 87 minutes

Flight Status for Thursday September 18, 2025

This flight is also scheduled for Tomorrow (September 19, 2025). See it here

Airline information

Alaska Airlines

Equipment: Boeing 737-900 (winglets) Passenger/BBJ3

Departure

Seattle (SEA)

September 18, 2025

Seattle-Tacoma International Airport

Departed at:

08:02 am

Terminal:

Gate:

S10

Scheduled Departure Time: 07:15 am

Arrival

Ontario (ONT)

September 18, 2025

Ontario International Airport

Arrived at:

11:47 am

Terminal:

Gate:

Scheduled Arrival Time: 10:20 am

Disclaimer

The information displayed on this website is gathered from third-party providers with a wide reputation on the sector, which in turn obtain the information from the airlines. This data is provided only for informative purposes. www.san-diego-airport.com assumes no responsibility for loss or damage as a result of relying on information posted here. Please contact your airline to verify flight status.

Codeshare Flights

This flight is shared with other airlines, this means that these other flights are the same:

- HA6888 - Hawaiian Airlines

- JL5423 - JAL

- TN2652 - Air Tahiti Nui