Informational Guide to Seattle–Tacoma Airport - Seatac (SEA) - NON OFFICIAL

DL403 Delta Air Lines - Flight Status

Below, you can find details about Delta Air Lines flight DL403, which currently operates between the airports of Austin - Austin-Bergstrom International Airport (Airport Code AUS) and Seattle - Seattle-Tacoma International Airport (Airport Code SEA).
This flight data pertains specifically to the flight's details for Sunday, April 12, 2026.

DL403 On Time performance:
n/a
It is not possible to calculate the On-Time Performance for this flight accurately due to insufficient or non-representative data, as doing so could lead to misleading conclusions.

Flight Status

DL403 Delta Air Lines from Austin

En Route - On-time
Flight Status for Sunday April 12, 2026

Airline information

Delta Air Lines
Delta Air Lines
Equipment: Airbus A220-300 Passenger

Departure

Austin (AUS)
April 12, 2026
Austin-Bergstrom International Airport
Departed at:
05:53 pm
Terminal:
M
Gate:
12
Scheduled Departure Time: 06:06 pm

Arrival

Seattle (SEA)
April 12, 2026
Seattle-Tacoma International Airport
Estimated Arrival Time:
08:06 pm
Gate:
B7
Scheduled Arrival Time: 08:49 pm
Baggage: 4
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.seattle-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.

Additional Information

Which is the frequency of flight DL403?
The flight DL403 is currently not scheduled at Seattle Airport - SEATAC.

Which is the distance of flight DL403?
The distance between the two airports is 1769 miles.

Are the departure airport and arrival airport at the same Time Zone?
No, each airport is in a different timezone. The times shown above, are presented in the local time of each respective airport.
Current Time in Austin: 2026-04-12 21:44:54
Current Time in Seattle: 2026-04-12 19:44:54

Alternative Flights

The following airlines serves the same route between Austin and Seattle:

Alaska Airlines
- Flight Number: AS339. (On Time performance: 76 - Average Delay: 15 minutes)
- Flight Number: AS503. (On Time performance: 87 - Average Delay: 13 minutes)
- Flight Number: AS595. (On Time performance: 85 - Average Delay: 5 minutes)
- Flight Number: AS782. (On Time performance: 96 - Average Delay: 1 minutes)

Delta Air Lines
- Flight Number: DL396. (On Time performance: 76 - Average Delay: 13 minutes)
- Flight Number: DL780. (On Time performance: 95 - Average Delay: 3 minutes)
- Flight Number: DL831. (On Time performance: 81 - Average Delay: 26 minutes)

Punctuality and delays

It is not possible to calculate the On-Time Performance for this flight accurately due to insufficient or non-representative data, as doing so could lead to misleading conclusions.

Delays analyzed by Week: It is not possible to calculate the On-Time Performance for this flight accurately by weekday due to insufficient or non-representative data, as doing so could lead to misleading conclusions
Delays analyzed by Month: It is not possible to calculate the On-Time Performance for this flight accurately by month due to insufficient or non-representative data, as doing so could lead to misleading conclusions

Last Past Flights DL403

No flights for DL403 were scheduled in the past month. The last flight took place on Sunday, April 12, 2026