Informational Guide to Boston Logan Airport (BOS) - NON OFFICIAL

AS357 Alaska Airlines - Flight Status

Below, you can find details about Alaska Airlines flight AS357, which currently operates between the airports of Boston - Boston Logan International Airport (Airport Code BOS) and San Francisco - San Francisco International Airport (Airport Code SFO).
This flight data pertains specifically to the flight's details for Thursday, November 20, 2025.

AS357 On Time performance:
52
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

AS357 Alaska Airlines to San Francisco

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

Boston (BOS)
November 20, 2025
Boston Logan International Airport

Arrival

San Francisco (SFO)
November 20, 2025
San Francisco International 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.boston-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:

- AA7459 - American Airlines

- FJ5863 - Fiji Airways

- HA4827 - Hawaiian Airlines

- QR3412 - Qatar Airways

Additional Information

Which is the frequency of flight AS357?
The flight AS357 is scheduled to flight on daily basis.

Which is the distance of flight AS357?
The distance between the two airports is 2698 miles.

Which is the flight time of flight AS357?
The scheduled flight time gate to gate is: 06:51 hours.
The real flight time gate to gate on average is: 06:55 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 Boston: 2025-11-24 19:19:57
Current Time in San Francisco: 2025-11-24 16:19:57

Alternative Flights

The following airlines serves the same route between Boston and San Francisco:

JetBlue
- Flight Number: B6133. (On Time performance: 92 - Average Delay: 18 minutes)
- Flight Number: B62233. (On Time performance: 81 - Average Delay: 26 minutes)
- Flight Number: B6333. (On Time performance: 63 - Average Delay: 41 minutes)
- Flight Number: B6733. (On Time performance: 70 - Average Delay: 29 minutes)
- Flight Number: B6933.

Delta Air Lines
- Flight Number: DL1655. (On Time performance: 69 - Average Delay: 33 minutes)
- Flight Number: DL362. (On Time performance: 84 - Average Delay: 12 minutes)
- Flight Number: DL475. (On Time performance: 60 - Average Delay: 52 minutes)

United Airlines
- Flight Number: UA1008. (On Time performance: 89 - Average Delay: 10 minutes)
- Flight Number: UA1701. (On Time performance: 43 - Average Delay: 67 minutes)
- Flight Number: UA2279. (On Time performance: 87 - Average Delay: 21 minutes)
- Flight Number: UA2400. (On Time performance: 57 - Average Delay: 43 minutes)
- Flight Number: UA2441. (On Time performance: 88 - Average Delay: 14 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 October 26, 2025 to November 18, 2025, we have obtained these figures.
Total number of flights: 23
On Time: 12 ( 52 % )
Moderate Delay: 1 ( 4 % )
Significant Delay: 3 ( 13 % )
Major Delay: 6 ( 26 % )
Canceled: 0 ( 0 % )
Diverted: 1 ( 4 % )

Average Delay: 48 minutes.
Delays analyzed by Weekday: We have gathered available data from last six months, spanning from May 19, 2025 to November 18, 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 November 03, 2024 to October 30, 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.

Note: We have excluded some months from the graph, since the quantity and quality of the data is not representative enough.

Last Past Flights AS357

Date
Departure
Arrival
Duration
Aircraft
Status
Thursday
20 November
08:02 pm
Boston (BOS)
11:18 pm
San Francisco (SFO)
06h 16min
Boeing 737MAX
Boeing 737MAX
Landed - Delayed
Wednesday
19 November
06:44 pm
Boston (BOS)
11:14 pm
San Francisco (SFO)
07h 30min
Boeing 737-800
Boeing 737-800
Landed - Delayed
Tuesday
18 November
06:49 pm
Boston (BOS)
10:12 pm
San Francisco (SFO)
06h 23min
Boeing 737MAX
Boeing 737MAX
Landed - On-time
Monday
17 November
06:49 pm
Boston (BOS)
10:25 pm
San Francisco (SFO)
06h 36min
Boeing 737MAX
Boeing 737MAX
Landed - On-time
Sunday
16 November
06:53 pm
Boston (BOS)
10:33 pm
San Francisco (SFO)
06h 40min
Boeing 737-900
Boeing 737-900
Landed - On-time
Saturday
15 November
06:54 pm
Boston (BOS)
11:00 pm
San Francisco (SFO)
07h 06min
Boeing 737-900
Boeing 737-900
Landed - On-time
Friday
14 November
06:40 pm
Boston (BOS)
10:36 pm
San Francisco (SFO)
06h 56min
Boeing 737MAX
Boeing 737MAX
Landed - On-time
Thursday
13 November
06:56 pm
Boston (BOS)
11:08 pm
San Francisco (SFO)
07h 12min
Boeing 737-900
Boeing 737-900
Landed - Delayed
Wednesday
12 November
07:05 pm
Boston (BOS)
11:20 pm
San Francisco (SFO)
07h 15min
Boeing 737MAX
Boeing 737MAX
Landed - Delayed
Tuesday
11 November
07:44 pm
Boston (BOS)
11:22 pm
San Francisco (SFO)
06h 38min
Boeing 737-900
Boeing 737-900
Landed - Delayed