Informational Guide to Seattle–Tacoma Airport - Seatac (SEA) - NON OFFICIAL

UA2131 United Airlines - Flight Status

Below, you can find details about United Airlines flight UA2131, which currently operates between the airports of Seattle - Seattle-Tacoma International Airport (Airport Code SEA) and Dulles - Washington Dulles International Airport (Airport Code IAD).
This flight data pertains specifically to the flight's details for Monday, September 29, 2025.

UA2131 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

UA2131 United Airlines to Dulles

En Route - On-time
Flight Status for Monday September 29, 2025
This flight was also scheduled for Yesterday (September 28, 2025). See it here

Airline information

United Airlines
United Airlines
Equipment: Boeing 737MAX 8 Passenger

Departure

Seattle (SEA)
September 29, 2025
Seattle-Tacoma International Airport
Departed at:
01:07 pm
Gate:
A8
Scheduled Departure Time: 01:12 pm

Arrival

Dulles (IAD)
September 29, 2025
Washington Dulles International Airport
Estimated Arrival Time:
09:13 pm
Terminal:
-
Gate:
C23
Scheduled Arrival Time: 09:20 pm
Baggage: 3
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.

Codeshare Flights

This flight is shared with other airlines, this means that these other flights are the same:

- AV2029 - Avianca

- CM2765 - Copa Airlines

- LH7487 - Lufthansa

Additional Information

Which is the frequency of flight UA2131?
The flight UA2131 is scheduled to flight on Monday, Thursday, Friday, Saturday, Sunday on a weekly basis.

Which is the distance of flight UA2131?
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 Seattle: 2025-09-29 13:28:14
Current Time in Dulles: 2025-09-29 16:28:14

Alternative Flights

The following airlines serves the same route between Seattle and Dulles:

Alaska Airlines
- Flight Number: AS348. (On Time performance: 65 - Average Delay: 15 minutes)
- Flight Number: AS367. (On Time performance: 77 - Average Delay: 15 minutes)
- Flight Number: AS401. (On Time performance: 79 - Average Delay: 7 minutes)
- Flight Number: AS406. (On Time performance: 64 - Average Delay: 17 minutes)

Delta Air Lines
- Flight Number: DL541. (On Time performance: 76 - Average Delay: 11 minutes)

United Airlines
- Flight Number: UA2217. (On Time performance: 93 - Average Delay: 40 minutes)
- Flight Number: UA2497. (On Time performance: 95 - Average Delay: -5 minutes)
- Flight Number: UA684. (On Time performance: 97 - Average Delay: 1 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 September 02, 2024 to September 25, 2024. 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 UA2131

Date
Departure
Arrival
Duration
Aircraft
Status
Sunday
28 September
01:06 pm
Seattle (SEA)
09:10 pm
Dulles (IAD)
05h 04min
Boeing 737MAX
Boeing 737MAX
Landed - On-time
Saturday
27 September
01:14 pm
Seattle (SEA)
08:55 pm
Dulles (IAD)
04h 41min
Boeing 737MAX
Boeing 737MAX
Landed - On-time
Friday
26 September
01:05 pm
Seattle (SEA)
09:02 pm
Dulles (IAD)
04h 57min
Boeing 737MAX
Boeing 737MAX
Landed - On-time
Thursday
25 September
01:06 pm
Seattle (SEA)
08:57 pm
Dulles (IAD)
04h 51min
Boeing 737MAX
Boeing 737MAX
Landed - On-time