UA1366 United Airlines - Flight Status
Below, you can find details about United Airlines flight UA1366, which currently operates between the airports of Dulles - Washington Dulles International Airport (Airport Code IAD) and Seattle - Seattle-Tacoma International Airport (Airport Code SEA).
This flight data pertains specifically to the flight's details for Thursday, December 18, 2025.
Table of contents:
Flight Status Additional Information Alternative Flights Punctuality and delays Last Past Flights UA1366
Flight Status Additional Information Alternative Flights Punctuality and delays Last Past Flights UA1366
UA1366 On Time performance:
n/a
It is not possible to calculate the On-Time Performance for this flight accurately due to insufficient or non-representative data, as doing so could lead to misleading conclusions. Flight Status
UA1366 United Airlines from Dulles
Scheduled - On-time
Flight Status for Thursday December 18, 2025
Scheduled - On-time
Flight Status for Thursday December 18, 2025
Airline information
United Airlines
Equipment: Boeing 737MAX 8 Passenger
Departure
Dulles (IAD)
December 18, 2025
Washington Dulles International Airport
Estimated Departure Time:
08:26 am
Terminal:
-
Gate:
D18
Scheduled Departure Time: 08:26 am
Arrival
Seattle (SEA)
December 18, 2025
Seattle-Tacoma International Airport
Estimated Arrival Time:
11:27 am
Gate:
B15
Scheduled Arrival Time: 11:27 am
Baggage: 9
Disclaimer
The information displayed on this website is gathered from third-party providers with a wide reputation on the sector, which in turn obtain the information from the airlines. This data is provided only for informative purposes. www.seattle-airport.com assumes no responsibility for loss or damage as a result of relying on information posted here. Please contact your airline to verify flight status.
Additional Information
Which is the frequency of flight UA1366?
The flight UA1366 is currently not scheduled at Seattle Airport - SEATAC.
Which is the distance of flight UA1366?
The distance between the two airports is 2300 miles.
Are the departure airport and arrival airport at the same Time Zone?
No, each airport is in a different timezone. The times shown above, are presented in the local time of each respective airport.
Current Time in Dulles: 2025-12-17 16:28:24
Current Time in Seattle: 2025-12-17 13:28:24
The flight UA1366 is currently not scheduled at Seattle Airport - SEATAC.
Which is the distance of flight UA1366?
The distance between the two airports is 2300 miles.
Are the departure airport and arrival airport at the same Time Zone?
No, each airport is in a different timezone. The times shown above, are presented in the local time of each respective airport.
Current Time in Dulles: 2025-12-17 16:28:24
Current Time in Seattle: 2025-12-17 13:28:24
Alternative Flights
The following airlines serves the same route between Dulles and Seattle:
Alaska Airlines
- Flight Number: AS351. (On Time performance: 74 - Average Delay: 16 minutes)
- Flight Number: AS409. (On Time performance: 46 - Average Delay: 35 minutes)
Delta Air Lines
- Flight Number: DL1015. (On Time performance: 77 - Average Delay: 22 minutes)
United Airlines
- Flight Number: UA1724. (On Time performance: 82 - Average Delay: 7 minutes)
- Flight Number: UA326. (On Time performance: 83 - Average Delay: 13 minutes)
Alaska Airlines
- Flight Number: AS351. (On Time performance: 74 - Average Delay: 16 minutes)
- Flight Number: AS409. (On Time performance: 46 - Average Delay: 35 minutes)
Delta Air Lines
- Flight Number: DL1015. (On Time performance: 77 - Average Delay: 22 minutes)
United Airlines
- Flight Number: UA1724. (On Time performance: 82 - Average Delay: 7 minutes)
- Flight Number: UA326. (On Time performance: 83 - Average Delay: 13 minutes)
Punctuality and delays
It is not possible to calculate the On-Time Performance for this flight accurately due to insufficient or non-representative data, as doing so could lead to misleading conclusions.
Delays analyzed by Week: It is not possible to calculate the On-Time Performance for this flight accurately by weekday due to insufficient or non-representative data, as doing so could lead to misleading conclusions
Delays analyzed by Month: We have gathered available data from last twelve closed months, spanning from March 30, 2025 to May 31, 2025. Next, you can observe the results broken down by month: number of flights analyzed, on-time performance per month, and average delay per month.
Note: We have excluded some months from the graph, since the quantity and quality of the data is not representative enough.
Delays analyzed by Week: It is not possible to calculate the On-Time Performance for this flight accurately by weekday due to insufficient or non-representative data, as doing so could lead to misleading conclusions
Delays analyzed by Month: We have gathered available data from last twelve closed months, spanning from March 30, 2025 to May 31, 2025. Next, you can observe the results broken down by month: number of flights analyzed, on-time performance per month, and average delay per month.
Last Past Flights UA1366
No flights for UA1366 were scheduled in the past month. The last flight took place on Thursday, December 18, 2025