United Airlines UA577 Flight Status
According to Trip.com real-time data, the UA577 flight operated by United Airlines on Oct 22, 2026 is scheduled to fly from St. Louis (STL) to Boston (BOS). The flight is expected to depart at 7:30 AM (local time in St. Louis, UTC-5) and land at 2:35 PM (local time in Boston, UTC-4) .
Wed, Oct 21
Thu, Oct 22
Fri, Oct 23
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Arrived
The flight has arrived 46m late
6h 5m
EWR
2h 42m
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 48m
Check-in Counter
--
Boarding Gate
A21
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
A19
Arrival Gate
--
Baggage
7
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United Airlines From HK$1,544
Search flights Information provided by VariFlight For real-time updates, please check airport displays or contact your airline. You can also explore more flights from St. Louis to Boston or track other flights with our flight status tracker.
Track the Previous Flight Status: Landed at St. Louis
UA2040
|
New York (NYC)
St. Louis (STL)
St. Louis (STL)
Scheduled: 9:36 PM
|
27m early
fake text
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UA577 Aircraft Details
According to Trip.com real-time data, the UA577 flight flying from St. Louis to Boston on 10/22/2026 is operated by the aircraft model Airbus A319. This aircraft has been in service for 1y, 6m. The aircraft is equipped with 166 seats.
Airbus A319
Punctuality (Departure)
93
%
Punctuality (Arrival)
77
%
Late on average
30 minutes
Age
1y, 6m
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
None
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 21 from STL at approximately 7:36 AM. This flight is expected to arrrive in BOS at 3:21 PM.
| Date | Airport | Aircraft Model | Departure | Arrival | Status | |
|---|---|---|---|---|---|---|
| Departure | Arrival | |||||
| Sat, Oct 17 | St. Louis (STL) | New York (EWR) | 319 | 8:14 AM | 11:16 AM | Arrived |
| Sun, Oct 18 | St. Louis (STL) | Boston (BOS) | B38M | 7:41 AM | 2:13 PM | Arrived |
| Mon, Oct 19 | St. Louis (STL) | Boston (BOS) | B38M | 7:43 AM | 2:14 PM | Arrived |
| Tue, Oct 20 | St. Louis (STL) | Boston (BOS) | B38M | 7:32 AM | 1:56 PM | Arrived |
| Wed, Oct 21 | St. Louis (STL) | Boston (BOS) | B38M | 7:36 AM | 3:21 PM | Arrived |
| Thu, Oct 22 | St. Louis (STL) | Boston (BOS) | B38M | 7:30 AM | 2:35 PM | Scheduled |
| Fri, Oct 23 | St. Louis (STL) | Boston (BOS) | 319 | 7:30 AM | 2:35 PM | Scheduled |
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UA577 On-Time Performance
Based on the average performance of this flight over the past 30 trips, the on-time departure rate of UA577 is 93% (Late on average 17 minutes), and the on-time arrival rate is 77% (Late on average 30 minutes).
On-Time Departures
Punctuality
93
%
Late on average
17 minutes
Early
0
%
On time
93
%
30 mins late
3
%
60 mins late
0
%
90 mins late
3
%
Canceled
0
%
On-Time Arrivals
Punctuality
77
%
Late on average
30 minutes
Early
40
%
On time
37
%
30 mins late
10
%
60 mins late
0
%
90 mins late
13
%
Canceled
0
%
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Frequently Asked Questions
What is the current status of flight ua577?
Flight ua577 has not departed yet and is currently on schedule. Scheduled departure 7:30 AM, arrival 2:35 PM (updated Oct 22, 2026).Is flight ua577 on time today?
Flight ua577 has not departed yet and is currently on schedule. Scheduled departure is 7:30 AM, with arrival at 2:35 PM. 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 7:30 AM. The latest actual or estimated departure time is 7:30 AM, and the current status is Scheduled (updated Oct 22, 2026).When is flight ua577 scheduled to arrive?
Flight ua577 is scheduled to arrive at 2:35 PM. The latest estimated or actual arrival time is 2:35 PM. Status is Scheduled as of Oct 22, 2026.What is the gate information for flight ua577?
For flight ua577, the departure terminal is T1 and the boarding gate is A21. 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 hours5 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 22, 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 7:30 AM.
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Arrival Info: Boston Weather & Current Time
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Time on arrival: St. Louis 13:35
|
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