Airport Tips & Quick Reference Guide to Seattle–Tacoma Airport - Seatac (SEA)

AS577 Alaska Airlines - Flight Status

Codeshare Flights
The flight AY2601 from Finnair (AY) is a codeshare flight operated by Alaska Airlines (AS) under the flight number AS577. Check this page for details about flight AS577.

Below, you can find details about Alaska Airlines flight AS577, which currently operates between the airports of Seattle - Seattle-Tacoma International Airport (Airport Code SEA) and Dallas - Dallas Fort Worth International Airport (Airport Code DFW).
This flight data pertains specifically to the flight's details for Sunday, May 31, 2026.

AS577 On Time performance:
87
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

AS577 Alaska Airlines to Dallas

Scheduled - On-time
Flight Status for Sunday May 31, 2026
This flight was also scheduled for Yesterday (May 29, 2026). See it here
This flight is also scheduled for Today (May 30, 2026). See it here

Airline information

Alaska Airlines
Alaska Airlines
Equipment: Boeing 737MAX 9 Passenger

Departure

Seattle (SEA)
May 31, 2026
Seattle-Tacoma International Airport
Estimated Departure Time:
06:00 am
Gate:
N9
Scheduled Departure Time: 06:00 am

Arrival

Dallas (DFW)
May 31, 2026
Dallas Fort Worth International Airport
Estimated Arrival Time:
12:03 pm
Terminal:
E
Gate:
E10
Scheduled Arrival Time: 12:03 pm
Baggage: E14
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:

- AY2601 - Finnair

- QR2196 - Qatar Airways

Additional Information

Which is the frequency of flight AS577?
The flight AS577 is scheduled to flight on daily basis.

Which is the distance of flight AS577?
The distance between the two airports is 1658 miles.

Which is the flight time of flight AS577?
The scheduled flight time gate to gate is: 04:03 hours.
The real flight time gate to gate on average is: 03:56 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: 2026-05-30 09:38:01
Current Time in Dallas: 2026-05-30 11:38:01

Alternative Flights

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

American Airlines
- Flight Number: AA1667. (On Time performance: 89 - Average Delay: 30 minutes)
- Flight Number: AA2003. (On Time performance: 70 - Average Delay: 19 minutes)
- Flight Number: AA2429.
- Flight Number: AA2695. (On Time performance: 95 - Average Delay: 2 minutes)
- Flight Number: AA2748. (On Time performance: 94 - Average Delay: 5 minutes)
- Flight Number: AA707. (On Time performance: 75 - Average Delay: 13 minutes)
- Flight Number: AA717. (On Time performance: 76 - Average Delay: 21 minutes)
- Flight Number: AA727. (On Time performance: 48 - Average Delay: 39 minutes)
- Flight Number: AA757. (On Time performance: 80 - Average Delay: 13 minutes)
- Flight Number: AA767. (On Time performance: 69 - Average Delay: 35 minutes)

Alaska Airlines
- Flight Number: AS317. (On Time performance: 76 - Average Delay: 10 minutes)
- Flight Number: AS414. (On Time performance: 92 - Average Delay: 7 minutes)
- Flight Number: AS424. (On Time performance: 82 - Average Delay: 9 minutes)
- Flight Number: AS426. (On Time performance: 77 - Average Delay: 12 minutes)
- Flight Number: AS440. (On Time performance: 80 - Average Delay: 5 minutes)
- Flight Number: AS549. (On Time performance: 82 - Average Delay: 8 minutes)
- Flight Number: AS553. (On Time performance: 83 - Average Delay: 9 minutes)
- Flight Number: AS586. (On Time performance: 81 - Average Delay: 10 minutes)

Delta Air Lines
- Flight Number: DL803. (On Time performance: 85 - Average Delay: 16 minutes)
- Flight Number: DL870. (On Time performance: 80 - Average Delay: 25 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 May 13, 2026 to May 27, 2026, we have obtained these figures.
Total number of flights: 15
On Time: 13 ( 87 % )
Moderate Delay: 0 ( 0 % )
Significant Delay: 1 ( 7 % )
Major Delay: 1 ( 7 % )
Canceled: 0 ( 0 % )
Diverted: 0 ( 0 % )

Average Delay: 10 minutes.
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 AS577

Date
Departure
Arrival
Duration
Aircraft
Status
Friday
29 May
05:57 am
Seattle (SEA)
11:45 am
Dallas (DFW)
03h 48min
Boeing 737MAX
Boeing 737MAX
Landed - On-time
Thursday
28 May
05:59 am
Seattle (SEA)
12:10 pm
Dallas (DFW)
04h 11min
Boeing 737MAX
Boeing 737MAX
Landed - On-time
Wednesday
27 May
05:53 am
Seattle (SEA)
12:10 pm
Dallas (DFW)
04h 17min
Boeing 737MAX
Boeing 737MAX
Landed - On-time
Tuesday
26 May
05:54 am
Seattle (SEA)
12:03 pm
Dallas (DFW)
04h 09min
Boeing 737-900
Boeing 737-900
Landed - On-time
Monday
25 May
05:58 am
Seattle (SEA)
11:45 am
Dallas (DFW)
03h 47min
Boeing 737MAX
Boeing 737MAX
Landed - On-time
Sunday
24 May
05:52 am
Seattle (SEA)
11:38 am
Dallas (DFW)
03h 46min
Boeing 737-900
Boeing 737-900
Landed - On-time
Saturday
23 May
05:53 am
Seattle (SEA)
11:36 am
Dallas (DFW)
03h 43min
Boeing 737MAX
Boeing 737MAX
Landed - On-time
Friday
22 May
05:55 am
Seattle (SEA)
11:38 am
Dallas (DFW)
03h 43min
Boeing 737MAX
Boeing 737MAX
Landed - On-time
Thursday
21 May
05:53 am
Seattle (SEA)
11:28 am
Dallas (DFW)
03h 35min
Boeing 737MAX
Boeing 737MAX
Landed - On-time
Wednesday
20 May
05:57 am
Seattle (SEA)
12:58 pm
Dallas (DFW)
05h 01min
Boeing 737MAX
Boeing 737MAX
Landed - Delayed