UA1128: United flight 1128
Washington Dulles (IAD) → Seattle (SEA) · departs 5:45p, lands 8:37p local · Daily
The timetable below has every scheduled departure; for today's flight, check United.
An estimate from the published timetable, not live tracking: it cannot know about delays, diversions or cancellations.
Live status at United →The route
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UA1128 timetable
Published departure and arrival times, each in its airport's local time, from the flights we sampled.
| Route | Departs | Arrives | Scheduled | Days |
|---|---|---|---|---|
| IAD → SEAWashington Dulles to Seattle | 5:45p | 8:37p | 5h52m | Daily |
| ORD → IADChicago to Washington | 1:30p | 4:33p | 2h3m | Daily |
Other nonstops from Washington Dulles to Seattle
The departures either side of UA1128. Times are Washington Dulles time.
| Flight | Departs | Days |
|---|---|---|
| Alaska AS375 | 9:38a | Daily |
| United UA1824 | 1:05p | Daily |
| Alaska AS737 | 5:33p | Mon, Thu, Fri, Sun |
| This flight UA1128 | 5:45p | Daily |
All 6 flights from IAD to SEA, by time →
Flying back from Seattle
United flies Seattle to Washington Dulles nonstop 15 times a week, from 8:25a to 11:45p: 8:25a UA1523 · 11:14p UA2693 · every nonstop SEA → IAD →
How UA1128 ran in our sample
IAD → SEA
7 of 7 departures left within 15 minutes of schedule (Oct 14–20). Only flights that departed are counted: cancellations are not in our data.
Aircraft: Boeing 737 MAX 9 on 5 of 7; also Boeing 737 MAX 8 (1), Boeing 737-800 (1).
ORD → IAD
7 of 7 departures left within 15 minutes of schedule (Oct 25–31). Only flights that departed are counted: cancellations are not in our data.
Aircraft: Boeing 737 MAX 9 on 5 of 7; also Boeing 737-800 (1), Boeing 737-900 (1).
Other flights on this route: UA1055 · UA1357 · UA1486 · UA587 · UA1095 · UA2202 · UA1779 · all of them →
What time does UA1128 leave Washington Dulles?
UA1128 is scheduled to depart Washington Dulles (IAD) at 5:45p (daily), Washington Dulles time, and to land in Seattle (SEA) at about 8:37p local time, a scheduled 5h52m. Times are the published ones from the flights we sampled Oct 14–20; check United for today's.
What time does UA1128 leave Chicago?
UA1128 is scheduled to depart Chicago (ORD) at 1:30p (daily), Chicago time, and to land in Washington (IAD) at about 4:33p local time, a scheduled 2h3m. Times are the published ones from the flights we sampled Oct 25–31; check United for today's.
What plane is UA1128?
Boeing 737 MAX 9 on 5 of the 7 UA1128 flights from IAD we sampled Oct 14–20; the rest were a Boeing 737 MAX 8 or Boeing 737-800. Airlines swap aircraft, so the plane on a given day can differ.
Does UA1128 fly every day?
Yes — UA1128 flew Washington Dulles to Seattle every day of the week we sampled (Oct 14–20).
Is UA1128 usually on time?
Of 7 UA1128 departures from IAD we sampled Oct 14–20, 7 left within 15 minutes of the scheduled time. That counts only flights that departed — cancellations are not in our data — and one week is a small sample, so treat it as a hint, not a rating.
More United flights from Washington Dulles
Timetable from United departures we observed; UA1128 is a United Airlines flight number, and Hop Nonstop is not affiliated with United. Schedules change — confirm with the airline before you travel.