American Airlines AA3878 Flight Status
Based on Trip.com’s real-time data, the AA3878 flight operated by American Airlines on Nov 12, 2026 is scheduled to fly from Phoenix (PHX) to Monterey (MRY). The flight is expected to depart at 21:45 (local time in Phoenix, UTC-7) and land at 22:48 (local time in Monterey, UTC-8) .
Sun, Nov 8
Thu, Nov 12
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Arrived
The flight has arrived 3m late
2h 3m
Check-in Counter
--
Boarding Gate
B18
Arrival Gate
2
Baggage
1
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Scheduled
Your flight will depart on time.
2h 3m
Check-in Counter
--
Boarding Gate
--
Arrival Gate
2
Baggage
1
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AA3878 Aircraft Details
According to Trip.com real-time data, the AA3878 flight flying from Phoenix to Monterey on 11/11/2026 is operated by the aircraft model Embraer 175. This aircraft has been in service for 5y, 10m. The aircraft is equipped with 76 seats.
Embraer 175
Punctuality (Departure)
33
%
Punctuality (Arrival)
100
%
Early on average
2 minutes
Age
5y, 10m
Seats
76
Distance
--
Economy
Premium Economy
First
Onboard Amenities
Snacks
Inflight entertainment is available
Wi-Fi is available
USB port and power outlet
Seating Plan
76 cm
Legroom
46 cm
Seat width better than on 29% of flights
96°
Reclining Angle
2-2
Seat layout example
Onboard Amenities
Meal included
Entertainment available, please bring your own device
Wi-Fi is available
No power outlets are available
Seating Plan
86 cm
More legroom than on 29% of flights
46 cm
Seat width better than on 29% of flights
96°
Reclining Angle
--
Seat layout example
Onboard Amenities
Snacks
Inflight entertainment is available
Wi-Fi is available
USB port and power outlet
Seating Plan
94 cm
Legroom
51 cm
Seat width better than on 29% of flights
102°
Reclining Angle
1-2
Seat layout example
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Flight History for AA3878
Check more records from Trip.com about AA3878 before and after today
| Date | Airport | Aircraft Type | Departure | Arrival | Status | |
|---|---|---|---|---|---|---|
| Departure | Arrival | |||||
| Sun, Nov 1 | Phoenix (PHX) | Monterey (MRY) | E75L | 22:28 | 23:07 | Arrived |
| Thu, Nov 5 | Phoenix (PHX) | Monterey (MRY) | E75L | 21:49 | 22:20 | Arrived |
| Sun, Nov 8 | Phoenix (PHX) | Monterey (MRY) | E75L | 22:22 | 22:51 | Arrived |
| Thu, Nov 12 | Phoenix (PHX) | Monterey (MRY) | E170 | 21:45 | 22:48 | Scheduled |
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AA3878 On-Time Performance
Based on the average performance of this flight over the past 30 trips, the on-time departure rate of AA3878 is 33% (Late on average 28 minutes), and the on-time arrival rate is 100% (Early on average 2 minutes).
On-Time Departures
Punctuality
33
%
Late on average
28 minutes
Early
0
%
On time
33
%
30 mins late
67
%
60 mins late
0
%
90 mins late
0
%
Cancelled
0
%
On-Time Arrivals
Punctuality
100
%
Early on average
2 minutes
Early
33
%
On time
67
%
30 mins late
0
%
60 mins late
0
%
90 mins late
0
%
Cancelled
0
%
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Frequently Asked Questions
What is the current status of flight aa3878?
Flight aa3878 has not departed yet and is currently on schedule. Scheduled departure 21:45, arrival 22:48 (updated Nov 11, 2026).Is flight aa3878 on time today?
Flight aa3878 has not departed yet and is currently on schedule. Scheduled departure is 21:45, with arrival at 22:48. Recheck gate and timing before you head to the airport.Has flight aa3878 departed yet? What is the departure time?
Flight aa3878 is scheduled to depart at 21:45. The latest actual or estimated departure time is 21:45, and the current status is Scheduled (updated Nov 11, 2026).When is flight aa3878 scheduled to arrive?
Flight aa3878 is scheduled to arrive at 22:48. The latest estimated or actual arrival time is 22:48. Status is Scheduled as of Nov 11, 2026.What route does flight aa3878 fly?
Flight aa3878 is operated by American Airlines from Phoenix (PHX) to Monterey (MRY). Typical flight time is about 2 hours3 minutes; operating days may include Wednesday.How can I check real-time status for flight aa3878?
Track flight aa3878 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 aa3878 is delayed or canceled, what should I do?
If aa3878 is delayed or canceled, first confirm the latest status here (Scheduled, updated Nov 11, 2026). Contact American Airlines or your booking channel for rebooking or refund options, and check Trip.com Manage Booking if you booked on Trip.com.Has flight aa3878 departed from Phoenix?
Flight aa3878 has not departed from Phoenix (PHX) yet and is currently on schedule for 21:45.What is the seat configuration for flight aa3878?
Flight aa3878 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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Destination Info: Monterey Weather & Time
Clear
|
11°C - 22°C
Expected weather conditions upon arrival
-1 hour time difference
Time on arrival: Phoenix 23:48
|
Monterey 22:48
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