What is the current status of flight ua3781?

Flight ua3781 has been canceled (status: Canceled). Contact United Airlines or your booking channel for rebooking or refund (updated Nov 2, 2026).

Is flight ua3781 on time today?

Flight ua3781 has been canceled (status: Canceled). Contact United Airlines or your booking channel for rebooking or refund options; if booked on Trip.com, use Manage Booking.

What route does flight ua3781 fly?

Flight ua3781 is operated by United Airlines from Seattle (BFI) to Long Beach (LGB). Typical flight time is about 2 hours40 minutes; operating days may include Monday.

How can I check real-time status for flight ua3781?

Track flight ua3781 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 ua3781 is delayed or canceled, what should I do?

If ua3781 is delayed or canceled, first confirm the latest status here (Canceled, updated Nov 2, 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 ua3781 departed from Seattle?

Flight ua3781 has been canceled and did not depart from Seattle (BFI). Contact United Airlines or your booking channel for next steps.

United Airlines

UA3781 Flight Status

According to real-time data from Trip.com, flight UA3781, operated by United Airlines and scheduled to fly from Seattle (BFI to Long Beach (LGB), has been cancelled. Please contact the airline or airport counter for the latest information.

SEA-LGB

Access more flight status info on the Trip.com app

Canceled

Please refer to the airline for the latest information

Seattle(BFI)

King County (Boeing Field) International Airport

2h 40m

Long Beach(LGB)

Long Beach Airport

Check-in Counter

Boarding Gate

Arrival Gate

Baggage

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Information provided by VariFlight For real-time updates, please check airport displays or contact your airline. You can also explore more flights from Seattle to Long Beach or track other flights with our flight status tracker.

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UA3781

UA3781 Aircraft Details

Plane model info unavailable

Punctuality (Departure)

Punctuality (Arrival)

Early on average

Age

Seats

Flight Distance

Economy

In-Flight Services

Unknown

Seat Information

Legroom

Seat width

Reclining Angle

Seat layout example

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Frequently Asked Questions

What is the current status of flight ua3781?
Flight ua3781 has been canceled (status: Canceled). Contact United Airlines or your booking channel for rebooking or refund (updated Nov 2, 2026).
Is flight ua3781 on time today?
Flight ua3781 has been canceled (status: Canceled). Contact United Airlines or your booking channel for rebooking or refund options; if booked on Trip.com, use Manage Booking.
What route does flight ua3781 fly?
Flight ua3781 is operated by United Airlines from Seattle (BFI) to Long Beach (LGB). Typical flight time is about 2 hours40 minutes; operating days may include Monday.
How can I check real-time status for flight ua3781?
Track flight ua3781 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 ua3781 is delayed or canceled, what should I do?
If ua3781 is delayed or canceled, first confirm the latest status here (Canceled, updated Nov 2, 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 ua3781 departed from Seattle?
Flight ua3781 has been canceled and did not depart from Seattle (BFI). Contact United Airlines or your booking channel for next steps.