AS 1040 Seattle to Ontario Flight Status

Alaska Airlines Flight AS1040 from Seattle Tacoma International Airport SEA to Ontario International Airport ONT is not scheduled for today June 3rd, 2026.
The last time the flight was scheduled was on October 3rd, 2025.
Check the table below for AS1040's most recent flight history:

AS 1040 Flight Status & Schedule

Date Departure Arrival Status
Oct 03 21:29 23:31
Landed
Track >
Oct 02 22:41 00:55
Landed Late
Track >
Sep 29 21:27 23:39
Landed
Track >
Sep 28 22:03 00:10
Landed
Track >
Sep 26 21:24 23:24
Landed
Track >

Alaska Airlines AS 1040 Seattle to Ontario Flight Information

Alaska Airlines Flight AS1040 connects Seattle, United States to Ontario, United States, taking off from Seattle Tacoma International Airport SEA and landing at Ontario International Airport ONT.

How long is the AS1040 flight from Seattle to Ontario?

The average flight time from Seattle to Ontario is 2 hours and 6 minutes. The flight distance is 1540 km / 957 miles and the average flight speed is 729 km/h / 453 mph.

What is the On-Time Performance (OTP) of Alaska Airlines Flight AS1040 Seattle to Ontario?

The Airportia On-Time Performance Rating for Alaska Airlines Flight AS1040 is 4.8/5 stars. This metric is calculated using data from the past 10 flights.

Which terminal is the flight AS1040 arriving at?

Flight AS1040 arrives at Ontario International Airport (ONT) Terminal 2.

When was the latest AS1040 flight?

The latest flight took off on Saturday, October 4th, 2025 with the flight status being Landed on 23:31.

How else can the flight AS1040 be referenced as?

This Alaska Airlines flight can also be referenced as ASA1040, AS 1040, ASA 1040.

How often is flight AS1040 delayed?

On average, 30% of all AS1040 flights are delayed. The average delay is 32 minutes.

Can I get compensation for my delayed or cancelled AS1040 flight or baggage issues?

If your AS1040 flight was cancelled, delayed, or if you experienced baggage issues such as delayed, damaged, or lost bags, you may be entitled to compensation. Compensation amounts and eligibility depend on various regulations, including EC 261/2004, UK261, CA Montreal Convention, US GoodWill, BR-ANAC, SA-GACA and TK-SHY.

See our AS1040 Flight Tracker above for more details.

AS1040 and Seattle SEA to Ontario ONT Flights

Flight AS1040 is code-shared by 2 airlines using the flight numbers HA6811, QR4277

Other flights departing from Seattle SEA: AS3396, AS1109, AS3333, AS315

Other flights arriving at Ontario ONT: AA2276, AS716, DL1345, A81930

All flights connecting Seattle SEA to Ontario ONT.

AS1040 Alaska Airlines Flight: Seattle to Ontario Route Map

AS1040 Alaska Airlines Flight Map: Seattle to Ontario
Flight Delay Compensation up to 600€/$: Claim for delay, cancellation, or baggage issues >
Flight-schedule data supplied by Aviation Edge Real-time Flight Schedules API.