Alaska Airlines AS3121 Flight status
According to Trip.com real-time data, the AS3121 flight operated by Alaska Airlines on Oct 30, 2026 is scheduled to fly from San Diego (SAN) to Denver (DEN). The flight is expected to depart at 20:19 (local time in San Diego, UTC-7) and arrive at 23:11 (local time in Denver, UTC-6) .
Thu, Oct 29
Fri, Oct 30
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Arrived
The flight has arrived 18m early
2h 40m
Check-in Counter
--
Boarding Gate
32
Arrival Gate
A42
Baggage
9
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Scheduled
Your flight will depart on time.
2h 40m
Check-in Counter
--
Boarding Gate
22
Arrival Gate
A40
Baggage
9
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AS3121 Aircraft Details
According to Trip.com real-time data, the AS3121 flight from San Diego to Denver on 10/30/2026 is operated using the aircraft model Embraer 175. This aircraft has been in service for 8y, 11m. The aircraft has 76 seats.
Embraer 175
Punctuality (Departure)
64
%
Punctuality (Arrival)
96
%
Early on average
16 minutes
Age
8y, 11m
Seats
76
Flight Distance
--
Economy
Premium Economy
First
In-Flight Services
None
Inflight entertainment is available
Unknown
No power outlets are available
Seat Information
81 cm
More legroom than on 74% of flights
46 cm
Seat width better than on 82% of flights
100°
Reclining Angle
2-2
Seat layout example
In-Flight Services
Meal included
In-flight entertainment is unavailable
Wi-Fi is available
No power outlets are available
Seat Information
89 cm
More legroom than on 61% of flights
46 cm
Seat width better than on 82% of flights
100°
Reclining Angle
--
Seat layout example
In-Flight Services
Meal included
Inflight entertainment is available
Unknown
Power outlet
Seat Information
107 cm
More legroom than on 94% of flights
51 cm
Seat width
120°
Reclining Angle
1-2
Seat layout example
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Flight History for AS3121
Trip.com historical records show that the last AS3121 flight departed on Thu, Oct 29 from SAN at approximately 20:54. This flight is expected to arrrive in DEN at 23:41.
| Date | Airport | Aircraft Model | Departure | Arrival | Status | |
|---|---|---|---|---|---|---|
| Departure | Arrival | |||||
| Sat, Oct 24 | San Diego (SAN) | Denver (DEN) | E75L | 18:43 | 21:35 | Arrived |
| Sun, Oct 25 | San Diego (SAN) | Denver (DEN) | E75L | 20:49 | 23:39 | Arrived |
| Mon, Oct 26 | San Diego (SAN) | Denver (DEN) | E75L | 21:00 | 23:55 | Arrived |
| Tue, Oct 27 | San Diego (SAN) | Denver (DEN) | E75L | 18:48 | 21:37 | Arrived |
| Wed, Oct 28 | San Diego (SAN) | Denver (DEN) | E75L | 19:02 | 21:52 | Arrived |
| Thu, Oct 29 | San Diego (SAN) | Denver (DEN) | E75L | 20:54 | 23:41 | Arrived |
| Fri, Oct 30 | San Diego (SAN) | Denver (DEN) | E75L | 20:19 | 23:11 | Scheduled |
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AS3121 On-Time Performance
Based on the average performance of this flight over the last 30 trips, the on-time departure rate of AS3121 is 64% (Late on average 31 minutes), and the on-time arrival rate is 96% (Early on average 16 minutes).
On-Time Departures
Punctuality
64
%
Late on average
31 minutes
Early
0
%
On time
64
%
30 mins late
28
%
60 mins late
4
%
90 mins late
4
%
Cancelled
4
%
On-Time Arrivals
Punctuality
96
%
Early on average
16 minutes
Early
80
%
On time
16
%
30 mins late
0
%
60 mins late
4
%
90 mins late
0
%
Cancelled
4
%
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Flight FAQs
What is the current status of flight as3121?
Flight as3121 has not departed yet and is currently on schedule. Scheduled departure 20:19, arrival 23:59 (updated Oct 30, 2026).Is flight as3121 on time today?
Flight as3121 has not departed yet and is currently on schedule. Scheduled departure is 20:19, with arrival at 23:59. Recheck gate and timing before you head to the airport.Has flight as3121 departed yet? What is the departure time?
Flight as3121 is scheduled to depart at 20:19. The latest actual or estimated departure time is 20:19, and the current status is Scheduled (updated Oct 30, 2026).When is flight as3121 scheduled to arrive?
Flight as3121 is scheduled to arrive at 23:59. The latest estimated or actual arrival time is 23:11. Status is Scheduled as of Oct 30, 2026.What is the gate information for flight as3121?
For flight as3121, the departure terminal is T2 and the boarding gate is 22. Gate assignments can change at short notice—confirm on airport screens before heading to security.What is the baggage carousel number for flight as3121?
After arrival, baggage for flight as3121 is expected at carousel 9 in terminal T1. Carousel numbers are assigned close to landing and may change—follow airport signs on arrival.What route does flight as3121 fly?
Flight as3121 is operated by Alaska Airlines from San Diego (SAN) to Denver (DEN). Typical flight time is about 2 hours 40 minutes; operating days may include Friday.How can I check real-time status for flight as3121?
Track flight as3121 on this Trip.com status page for live departure, arrival, gate and baggage updates. For push alerts on the go, open the same flight in the Trip.com App and turn on flight notifications.If flight as3121 is delayed or canceled, what should I do?
If as3121 is delayed or canceled, first confirm the latest status here (Scheduled, updated Oct 30, 2026). Contact Alaska Airlines or your booking channel for rebooking or refund options, and check Trip.com Manage Booking if you booked on Trip.com.Has flight as3121 departed from San Diego?
Flight as3121 has not departed from San Diego (SAN) yet and is currently on schedule for 20:19.What is the seat configuration for flight as3121?
Flight as3121 usually flies a Embraer 175 with seat layout 2-2. Layouts can differ by aircraft subtype and cabin product—confirm your seat map in Manage Booking after you purchase.
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Time on arrival: San Diego 22:11
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