United Airlines
UA577 Flight status
According to Trip.com real-time data, the UA577 flight operated by United Airlines on Oct 8, 2026 is scheduled to fly from St. Louis (STL) to Boston (BOS). The flight is expected to depart at 07:30 (local time in St. Louis, UTC-5) and arrive at 14:35 (local time in Boston, UTC-4) .
Wed, Oct 7
Thu, Oct 8
Fri, Oct 9
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Arrived
The flight has arrived 6m early
6h 5m
EWR
2h 37m
Check-in Counter
--
Boarding Gate
A21
Arrival Gate
B28
Baggage
7
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Scheduled
Your flight will depart on time.
6h 5m
EWR
2h 45m
Check-in Counter
--
Boarding Gate
A19
Arrival Gate
B29
Baggage
7
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Scheduled
Your flight will depart on time.
6h 5m
EWR
2h 13m
Check-in Counter
--
Boarding Gate
--
Arrival Gate
--
Baggage
7
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Information provided by VariFlight
For real-time updates, please check airport displays or contact your airline.
Track the Previous Flight Status: Scheduled
UA2040
|
New York (NYC)
St. Louis (STL)
St. Louis (STL)
Scheduled: 21:09
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UA577 Aircraft Details
According to Trip.com real-time data, the UA577 flight from St. Louis to Boston on 10/8/2026 is operated using the aircraft model Airbus A319. This aircraft has been in service for 3y, 7m. The aircraft has 166 seats.
Airbus A319
Punctuality (Departure)
90
%
Punctuality (Arrival)
73
%
Late on average
27 minutes
Age
3y, 7m
Seats
166
Flight Distance
--
Economy
First
Premium Economy
In-Flight Services
None
On-demand entertainment
Wi-Fi is available
USB port and power outlet
Seat Information
76 cm
Legroom
43 cm
Seat width
100°
Reclining Angle
--
Seat layout example
In-Flight Services
Snacks
On-demand entertainment
Wi-Fi is available
USB port and power outlet
Seat Information
94 cm
Legroom
53 cm
Seat width better than on 100% of flights
120°
Reclining Angle
--
Seat layout example
In-Flight Services
Snacks
On-demand entertainment
Wi-Fi is available
USB port and power outlet
Seat Information
86 cm
Legroom
43 cm
Seat width
100°
Reclining Angle
--
Seat layout example
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Flight History for UA577
Trip.com historical records show that the last UA577 flight departed on Wed, Oct 7 from STL at approximately 07:38. This flight is expected to arrrive in BOS at 14:29.
| Date | Airport | Aircraft Model | Departure | Arrival | Status | |
|---|---|---|---|---|---|---|
| Departure | Arrival | |||||
| Sat, Oct 3 | St. Louis (STL) | New York (EWR) | 319 | 07:54 | 10:44 | Arrived |
| Sun, Oct 4 | St. Louis (STL) | Boston (BOS) | B38M | 07:38 | 14:48 | Arrived |
| Mon, Oct 5 | St. Louis (STL) | Boston (BOS) | B38M | 07:46 | 14:45 | Arrived |
| Tue, Oct 6 | St. Louis (STL) | Boston (BOS) | B38M | 07:36 | 14:43 | Arrived |
| Wed, Oct 7 | St. Louis (STL) | Boston (BOS) | B38M | 07:38 | 14:29 | Arrived |
| Thu, Oct 8 | St. Louis (STL) | Boston (BOS) | B38M | 07:30 | 14:35 | Scheduled |
| Fri, Oct 9 | St. Louis (STL) | Boston (BOS) | B38M | 07:30 | 14:35 | Scheduled |
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UA577 On-Time Performance
Based on the average performance of this flight over the last 30 trips, the on-time departure rate of UA577 is 90% (Late on average 20 minutes), and the on-time arrival rate is 73% (Late on average 27 minutes).
On-Time Departures
Punctuality
90
%
Late on average
20 minutes
Early
0
%
On time
90
%
30 mins late
3
%
60 mins late
3
%
90 mins late
3
%
Cancelled
0
%
On-Time Arrivals
Punctuality
73
%
Late on average
27 minutes
Early
47
%
On time
27
%
30 mins late
17
%
60 mins late
0
%
90 mins late
10
%
Cancelled
0
%
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Flight FAQs
-
What is the current status of flight ua577?
Flight ua577 has not departed yet and is currently on schedule. Scheduled departure 07:30, arrival 14:35 (updated Oct 8, 2026). -
Is flight ua577 on time today?
Flight ua577 has not departed yet and is currently on schedule. Scheduled departure is 07:30, with arrival at 14:35. Recheck gate and timing before you head to the airport. -
Has flight ua577 departed yet? What is the departure time?
Flight ua577 is scheduled to depart at 07:30. The latest actual or estimated departure time is 07:30, and the current status is Scheduled (updated Oct 8, 2026). -
When is flight ua577 scheduled to arrive?
Flight ua577 is scheduled to arrive at 14:35. The latest estimated or actual arrival time is 14:35. Status is Scheduled as of Oct 8, 2026. -
What is the gate information for flight ua577?
For flight ua577, the departure terminal is T1 and the boarding gate is A19. Gate assignments can change at short notice—confirm on airport screens before heading to security. -
What is the baggage carousel number for flight ua577?
After arrival, baggage for flight ua577 is expected at carousel 7 in terminal B. Carousel numbers are assigned close to landing and may change—follow airport signs on arrival. -
What route does flight ua577 fly?
Flight ua577 is operated by United Airlines from St. Louis (STL) to Boston (BOS). Typical flight time is about 6 hours 5 minutes; operating days may include Thursday. -
How can I check real-time status for flight ua577?
Track flight ua577 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 ua577 is delayed or canceled, what should I do?
If ua577 is delayed or canceled, first confirm the latest status here (Scheduled, updated Oct 8, 2026). Contact United Airlines or your booking channel for rebooking or refund options, and check Trip.com Manage Booking if you booked on Trip.com. -
Has flight ua577 departed from St. Louis?
Flight ua577 has not departed from St. Louis (STL) yet and is currently on schedule for 07:30.
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Arrival Info: Boston Weather & Current Time
Mostly clear
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12°C - 18°C
Weather forecast for your arrival day
1 hour time difference
Time on arrival: St. Louis 13:35
|
Boston 14:35
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