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

UA755 United Airlines - Flight Status

Codeshare Flights
The flight LH7487 from Lufthansa (LH) is a codeshare flight operated by United Airlines (UA) under the flight number UA755. Check this page for details about flight UA755.

Below, you can find details about United Airlines flight UA755, 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 Saturday, May 16, 2026.

UA755 On Time performance:
86
We have calculated the percentage of flights that arrived within 15 minutes of their scheduled time, or earlier, based on real flight data from the last 3 months. More about punctuality and delays

Flight Status

UA755 United Airlines to Dulles

Scheduled - On-time
Flight Status for Saturday May 16, 2026
This flight was also scheduled for Yesterday (May 15, 2026). See it here
This flight is also scheduled for Tomorrow (May 17, 2026). See it here

Airline information

United Airlines
United Airlines
Equipment: Airbus A319

Departure

Seattle (SEA)
May 16, 2026
Seattle-Tacoma International Airport
Estimated Departure Time:
12:56 pm
Gate:
B9
Scheduled Departure Time: 12:56 pm

Arrival

Dulles (IAD)
May 16, 2026
Washington Dulles International Airport
Estimated Arrival Time:
09:08 pm
Terminal:
-
Gate:
D2
Scheduled Arrival Time: 09:08 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 UA755?
The flight UA755 is scheduled to flight on daily basis.

Which is the distance of flight UA755?
The distance between the two airports is 2300 miles.

Which is the flight time of flight UA755?
The scheduled flight time gate to gate is: 05:12 hours.
The real flight time gate to gate on average is: 04:30 hours.

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: 2026-05-16 01:26:51
Current Time in Dulles: 2026-05-16 04:26:51

Alternative Flights

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

Alaska Airlines
- Flight Number: AS348. (On Time performance: 95 - Average Delay: 1 minutes)
- Flight Number: AS367. (On Time performance: 87 - Average Delay: 6 minutes)
- Flight Number: AS737. (On Time performance: 85 - Average Delay: 9 minutes)

Delta Air Lines
- Flight Number: DL541. (On Time performance: 80 - Average Delay: 19 minutes)

United Airlines
- Flight Number: UA264. (On Time performance: 90 - Average Delay: 3 minutes)
- Flight Number: UA2851. (On Time performance: 79 - Average Delay: 15 minutes)
- Flight Number: UA2861. (On Time performance: 94 - Average Delay: -5 minutes)

Punctuality and delays

We have gathered data from recent months and present below an analysis of how timely the flights have been.

In terms of On-Time Performance, by analyzing the flight data from the last three months, spanning from April 30, 2026 to May 13, 2026, we have obtained these figures.
Total number of flights: 14
On Time: 12 ( 86 % )
Moderate Delay: 0 ( 0 % )
Significant Delay: 0 ( 0 % )
Major Delay: 1 ( 7 % )
Canceled: 0 ( 0 % )
Diverted: 1 ( 7 % )

Average Delay: 9 minutes.
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 UA755

Date
Departure
Arrival
Duration
Aircraft
Status
Friday
15 May
01:14 pm
Seattle (SEA)
09:01 pm
Dulles (IAD)
04h 47min
Boeing 737MAX
Boeing 737MAX
Landed - On-time
Thursday
14 May
01:02 pm
Seattle (SEA)
09:10 pm
Dulles (IAD)
05h 08min
Boeing 737MAX
Boeing 737MAX
Landed - On-time
Wednesday
13 May
01:00 pm
Seattle (SEA)
09:31 pm
Raleigh/Durham (RDU)
05h 31min
Boeing 737MAX
Boeing 737MAX
Landed - DIVERTED
Tuesday
12 May
01:03 pm
Seattle (SEA)
08:36 pm
Dulles (IAD)
04h 33min
Boeing 737MAX
Boeing 737MAX
Landed - On-time
Monday
11 May
12:57 pm
Seattle (SEA)
08:22 pm
Dulles (IAD)
04h 25min
Boeing 737MAX
Boeing 737MAX
Landed - On-time
Sunday
10 May
01:02 pm
Seattle (SEA)
08:36 pm
Dulles (IAD)
04h 34min
Boeing 737MAX
Boeing 737MAX
Landed - On-time
Saturday
09 May
12:55 pm
Seattle (SEA)
08:47 pm
Dulles (IAD)
04h 52min
Airbus A319
Airbus A319
Landed - On-time
Friday
08 May
01:00 pm
Seattle (SEA)
08:37 pm
Dulles (IAD)
04h 37min
Boeing 737MAX
Boeing 737MAX
Landed - On-time
Thursday
07 May
01:04 pm
Seattle (SEA)
08:50 pm
Dulles (IAD)
04h 46min
Boeing 737MAX
Boeing 737MAX
Landed - On-time
Wednesday
06 May
01:02 pm
Seattle (SEA)
08:33 pm
Dulles (IAD)
04h 31min
Boeing 737MAX
Boeing 737MAX
Landed - On-time