Alaska Airlines AS311 Flight Status
Based on Trip.com’s real-time data, the AS311 flight operated by Alaska Airlines on Sep 20, 2026 is scheduled to fly from Boston (BOS) to Portland (PDX). The flight is expected to depart at 09:33 (local time in Boston, UTC-4) and land at 12:16 (local time in Portland, UTC-7) .
Sat, Sep 19
Sun, Sep 20
Mon, Sep 21
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Arrived
The flight has arrived 21m early
6h 5m
Check-in Counter
--
Boarding Gate
B4
Arrival Gate
C11
Baggage
3
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Scheduled
Your flight will depart on time.
6h 5m
Check-in Counter
--
Boarding Gate
B6
Arrival Gate
C18
Baggage
3
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Scheduled
Your flight will depart on time.
6h 5m
Check-in Counter
--
Boarding Gate
B4
Arrival Gate
C10
Baggage
--
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Information provided by VariFlight For the latest updates, please refer to airport announcements or consult your airline. You can also explore more flights from Boston to Portland or track other flights with our flight status tracker.
Track the Previous Flight Status: Scheduled
AS214
|
Seattle (SEA) 
Boston (BOS)
Boston (BOS)Scheduled: 07:39
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AS311 Aircraft Details
According to Trip.com real-time data, the AS311 flight flying from Boston to Portland on 9/20/2026 is operated by the aircraft model Boeing 737-900. This aircraft has been in service for 9y, 4m. The aircraft is equipped with 154 seats.
Boeing 737-900
Punctuality (Departure)
80%
Punctuality (Arrival)
90%
Early on average
1 minute
Age
9y, 4m
Seats
154
Distance
--
Economy
First
Onboard Amenities
None
Inflight entertainment is available
Wi-Fi (additional charge)
USB port and power outlet
Seating Plan
--
Legroom
43 cm
Seat width
100°
Reclining Angle
3-3
Seat layout example
Onboard Amenities
Meal included
Inflight entertainment is available
Wi-Fi (additional charge)
USB port and power outlet
Seating Plan
104 cm
More legroom than on 33% of flights
53 cm
Seat width
120°
Reclining Angle
2-2
Seat layout example
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Flight History for AS311
Trip.com historical records show that the last AS311 flight departed on Sat, Sep 19 from BOS at approximately 09:44. This flight is expected to arrrive in PDX at 12:17.
| Date | Airport | Aircraft Type | Departure | Arrival | Status | |
|---|---|---|---|---|---|---|
| Departure | Arrival | |||||
| Tue, Sep 15 | Boston (BOS) | Portland (PDX) | 739 | 09:51 | 12:38 | Arrived |
| Wed, Sep 16 | Boston (BOS) | Portland (PDX) | B39M | 09:56 | 12:43 | Arrived |
| Thu, Sep 17 | Boston (BOS) | Portland (PDX) | 739 | 09:52 | 12:43 | Arrived |
| Fri, Sep 18 | Boston (BOS) | Portland (PDX) | 739 | 09:45 | 12:19 | Arrived |
| Sat, Sep 19 | Boston (BOS) | Portland (PDX) | B39M | 09:44 | 12:17 | Arrived |
| Sun, Sep 20 | Boston (BOS) | Portland (PDX) | 739 | 09:33 | 12:16 | Scheduled |
| Mon, Sep 21 | Boston (BOS) | Portland (PDX) | 739 | 09:33 | 12:38 | Scheduled |
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AS311 On-Time Performance
Based on the average performance of this flight over the past 30 trips, the on-time departure rate of AS311 is 80% (Late on average 22 minutes), and the on-time arrival rate is 90% (Early on average 1 minute).
On-Time Departures
Punctuality
80%
Late on average 22 minutes
Early
0%
On time
80%
30 mins late
13%
60 mins late
7%
90 mins late
0%
Cancelled
0%
On-Time Arrivals
Punctuality
90%
Early on average 1 minute
Early
57%
On time
33%
30 mins late
10%
60 mins late
0%
90 mins late
0%
Cancelled
0%
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Frequently Asked Questions
What is the current status of flight as311?
Flight as311 has not departed yet and is currently on schedule. Scheduled departure 09:33, arrival 12:38 (updated Sep 20, 2026).Is flight as311 on time today?
Flight as311 has not departed yet and is currently on schedule. Scheduled departure is 09:33, with arrival at 12:38. Recheck gate and timing before you head to the airport.Has flight as311 departed yet? What is the departure time?
Flight as311 is scheduled to depart at 09:33. The latest actual or estimated departure time is 09:33, and the current status is Scheduled (updated Sep 20, 2026).When is flight as311 scheduled to arrive?
Flight as311 is scheduled to arrive at 12:38. The latest estimated or actual arrival time is 12:16. Status is Scheduled as of Sep 20, 2026.What is the gate information for flight as311?
For flight as311, the departure terminal is B and the boarding gate is B6. Gate assignments can change at short notice—confirm on airport screens before heading to security.What route does flight as311 fly?
Flight as311 is operated by Alaska Airlines from Boston (BOS) to Portland (PDX). Typical flight time is about 6 hours5 minutes; operating days may include Sunday.How can I check real-time status for flight as311?
Track flight as311 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 as311 is delayed or canceled, what should I do?
If as311 is delayed or canceled, first confirm the latest status here (Scheduled, updated Sep 20, 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 as311 departed from Boston?
Flight as311 has not departed from Boston (BOS) yet and is currently on schedule for 09:33.What is the seat configuration for flight as311?
Flight as311 usually flies a Boeing 737-900 with seat layout 3-3. Layouts can differ by aircraft subtype and cabin product—confirm your seat map in Manage Booking after you purchase.
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Destination Info: Portland Weather & Time
Intermittent clouds
|
12°C - 26°C
Expected weather conditions upon arrival
-3 hour time difference
Time on arrival: Boston 15:16| Portland 12:16
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