Airport Tips & Quick Reference Guide to Seattle–Tacoma Airport - Seatac (SEA)

UA2851 United Airlines - Flight Status

Below, you can find details about United Airlines flight UA2851, 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 Wednesday, May 06, 2026.

UA2851 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

UA2851 United Airlines to Dulles

Landed - On-time
Flight Status for Wednesday May 06, 2026
This flight is also scheduled for Today (May 07, 2026). See it here
This flight is also scheduled for Tomorrow (May 08, 2026). See it here

Airline information

United Airlines
United Airlines
Equipment: Boeing 737-900 Passenger (Scimitar Winglets)

Departure

Seattle (SEA)
May 06, 2026
Seattle-Tacoma International Airport
Departed at:
08:24 am
Gate:
B9
Scheduled Departure Time: 08:10 am

Arrival

Dulles (IAD)
May 06, 2026
Washington Dulles International Airport
Arrived at:
04:13 pm
Terminal:
-
Gate:
D16
Scheduled Arrival Time: 04:22 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:

- ET1369 - Ethiopian Airlines

- LH7485 - Lufthansa

- OS7908 - Austrian

- SN8850 - Brussels Airlines

Additional Information

Which is the frequency of flight UA2851?
The flight UA2851 is scheduled to flight on daily basis.

Which is the distance of flight UA2851?
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: 2026-05-07 11:52:28
Current Time in Dulles: 2026-05-07 14:52:28

Alternative Flights

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

Alaska Airlines
- Flight Number: AS348. (On Time performance: 90 - Average Delay: 3 minutes)
- Flight Number: AS367. (On Time performance: 86 - Average Delay: 7 minutes)
- Flight Number: AS737. (On Time performance: 85 - Average Delay: 8 minutes)

Delta Air Lines
- Flight Number: DL541. (On Time performance: 78 - Average Delay: 21 minutes)

United Airlines
- Flight Number: UA264.
- Flight Number: UA2861. (On Time performance: 94 - Average Delay: -5 minutes)
- Flight Number: UA755.

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: It is not possible to calculate the On-Time Performance for this flight accurately by month due to insufficient or non-representative data, as doing so could lead to misleading conclusions

Last Past Flights UA2851

Date
Departure
Arrival
Duration
Aircraft
Status
Wednesday
06 May
08:24 am
Seattle (SEA)
04:13 pm
Dulles (IAD)
04h 49min
Boeing 737-900
Boeing 737-900
Landed - On-time
Tuesday
05 May
08:03 am
Seattle (SEA)
03:34 pm
Dulles (IAD)
04h 31min
Boeing 737-900
Boeing 737-900
Landed - On-time
Monday
04 May
08:07 am
Seattle (SEA)
03:55 pm
Dulles (IAD)
04h 48min
Boeing 737-900
Boeing 737-900
Landed - On-time
Sunday
03 May
08:03 am
Seattle (SEA)
04:02 pm
Dulles (IAD)
04h 59min
Boeing 737-900
Boeing 737-900
Landed - On-time
Saturday
02 May
08:06 am
Seattle (SEA)
04:12 pm
Dulles (IAD)
05h 06min
Boeing 737-900
Boeing 737-900
Landed - On-time
Friday
01 May
09:47 am
Seattle (SEA)
05:36 pm
Dulles (IAD)
04h 49min
Boeing 737-900
Boeing 737-900
Landed - Delayed
Thursday
30 April
08:08 am
Seattle (SEA)
04:15 pm
Dulles (IAD)
05h 07min
Boeing 737-900
Boeing 737-900
Landed - On-time