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

AS304 Alaska Airlines - Flight Status

Below, you can find details about Alaska Airlines flight AS304, which currently operates between the airports of Seattle - Seattle-Tacoma International Airport (Airport Code SEA) and Detroit - Detroit Metropolitan Wayne County Airport (Airport Code DTW).
This flight data pertains specifically to the flight's details for Monday, April 21, 2025.

AS304 On Time performance:
90
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

AS304 Alaska Airlines to Detroit

We only provide flight information for yesterday, today and tomorrow. This flight is not scheduled for this interval of time.

Airline information

Alaska Airlines
Alaska Airlines

Departure

Seattle (SEA)
April 21, 2025
Seattle-Tacoma International Airport

Arrival

Detroit (DTW)
April 21, 2025
Detroit Metropolitan Wayne County Airport
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.

Codeshare Flights

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

- AA7531 - American Airlines

- HA6587 - Hawaiian Airlines

- JL6385 - JAL

- TN2357 - Air Tahiti Nui

Additional Information

Which is the frequency of flight AS304?
The flight AS304 is scheduled to flight on daily basis.

Which is the distance of flight AS304?
The distance between the two airports is 1922 miles.

Which is the flight time of flight AS304?
The scheduled flight time gate to gate is: 04:19 hours.
The real flight time gate to gate on average is: 04:11 hours.

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 Seattle: 2025-04-30 02:19:38
Current Time in Detroit: 2025-04-30 05:19:38

Alternative Flights

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

Alaska Airlines
- Flight Number: AS313.
- Flight Number: AS380.

Delta Air Lines
- Flight Number: DL1706. (On Time performance: 100 - Average Delay: 0 minutes)
- Flight Number: DL533. (On Time performance: 87 - Average Delay: 9 minutes)
- Flight Number: DL758. (On Time performance: 89 - Average Delay: 7 minutes)
- Flight Number: DL810. (On Time performance: 88 - Average Delay: 3 minutes)
- Flight Number: DL812. (On Time performance: 96 - Average Delay: 2 minutes)

Punctuality and delays

We have gathered data from recent months and present below an analysis of how timely the flights have been.

In terms of On-Time Performance, by analyzing the flight data from the last three months, spanning from January 26, 2025 to April 21, 2025, we have obtained these figures.
Total number of flights: 81
On Time: 73 ( 90 % )
Moderate Delay: 3 ( 4 % )
Significant Delay: 3 ( 4 % )
Major Delay: 2 ( 2 % )
Canceled: 0 ( 0 % )
Diverted: 0 ( 0 % )

Average Delay: 5 minutes.
Delays analyzed by Weekday: We have gathered available data from last six months, spanning from October 26, 2024 to April 21, 2025. Next, you can observe the results broken down by day of the week: number of flights analyzed, on-time performance per day, and average delay per day.

Delays analyzed by Month: We have gathered available data from last twelve closed months, spanning from April 02, 2024 to March 31, 2025. Next, you can observe the results broken down by month: number of flights analyzed, on-time performance per month, and average delay per month.

Last Past Flights AS304

Date
Departure
Arrival
Duration
Aircraft
Status
Monday
21 April
08:38 am
Seattle (SEA)
03:44 pm
Detroit (DTW)
04h 06min
Boeing 737MAX
Boeing 737MAX
Landed - On-time
Sunday
20 April
08:37 am
Seattle (SEA)
03:49 pm
Detroit (DTW)
04h 12min
Boeing 737MAX
Boeing 737MAX
Landed - On-time
Saturday
19 April
09:52 am
Seattle (SEA)
05:23 pm
Detroit (DTW)
04h 31min
Boeing 737MAX
Boeing 737MAX
Landed - Delayed
Friday
18 April
08:44 am
Seattle (SEA)
03:59 pm
Detroit (DTW)
04h 15min
Boeing 737MAX
Boeing 737MAX
Landed - On-time
Thursday
17 April
08:37 am
Seattle (SEA)
04:05 pm
Detroit (DTW)
04h 28min
Boeing 737-800
Boeing 737-800
Landed - On-time
Wednesday
16 April
08:38 am
Seattle (SEA)
03:44 pm
Detroit (DTW)
04h 06min
Boeing 737-800
Boeing 737-800
Landed - On-time
Tuesday
15 April
08:37 am
Seattle (SEA)
03:58 pm
Detroit (DTW)
04h 21min
Boeing 737-800
Boeing 737-800
Landed - On-time
Monday
14 April
08:45 am
Seattle (SEA)
03:49 pm
Detroit (DTW)
04h 04min
Boeing 737MAX
Boeing 737MAX
Landed - On-time
Sunday
13 April
08:36 am
Seattle (SEA)
03:42 pm
Detroit (DTW)
04h 06min
Boeing 737-800
Boeing 737-800
Landed - On-time
Saturday
12 April
08:47 am
Seattle (SEA)
03:48 pm
Detroit (DTW)
04h 01min
Boeing 737-800
Boeing 737-800
Landed - On-time