UA1831: United flight 1831
Atlanta (ATL) → Washington (IAD) · departs 2:40p, lands 4:32p 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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UA1831 timetable
Published departure and arrival times, each in its airport's local time, from the flights we sampled.
| Route | Departs | Arrives | Scheduled | Days |
|---|---|---|---|---|
| ATL → IADAtlanta to Washington | 2:40p | 4:32p | 1h52m | Daily |
| IAD → EWRWashington Dulles to Newark | 5:30p | 7:00p | 1h30m | Sat |
| IAD → EWRWashington Dulles to Newark | 5:50p | 7:20p | 1h30m | Mon, Tue, Wed, Thu, Fri, Sun |
Other nonstops from Atlanta to Washington
The departures either side of UA1831. Times are Atlanta time.
| Flight | Departs | Days |
|---|---|---|
| Delta DL1444 | 9:45a | Mon, Tue, Wed, Thu, Fri, Sun |
| United UA632 | 9:50a | Daily |
| Delta DL1922 | 12:25p | Tue–Sat |
| This flight UA1831 | 2:40p | Daily |
| Frontier | 3:25p | Daily |
| Delta DL2902 | 4:33p | Mon, Thu, Fri, Sun |
| Delta DL1309 | 6:30p | Daily |
All 18 flights from ATL to IAD, by time →
Flying back from Washington
United flies Washington to Atlanta nonstop 26 times a week, from 8:20a to 10:25p: 8:20a UA2739 · 12:45p UA471 · 5:50p UA2081 · 10:25p UA1357 · every nonstop IAD → ATL →
How UA1831 ran in our sample
ATL → IAD
7 of 7 departures left within 15 minutes of schedule (Oct 4–10). Only flights that departed are counted: cancellations are not in our data.
IAD → EWR
4 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 737-900 on 3 of 7; also Boeing 737 MAX 9 (2), Airbus A319 (1), Boeing 737 MAX 8 (1).
Other flights on this route: UA1998 · UA2396 · UA1498 · UA1997 · all of them →
What time does UA1831 leave Atlanta?
UA1831 is scheduled to depart Atlanta (ATL) at 2:40p (daily), Atlanta time, and to land in Washington (IAD) at about 4:32p local time, a scheduled 1h52m. Times are the published ones from the flights we sampled Oct 4–10; check United for today's.
What time does UA1831 leave Washington Dulles?
UA1831 is scheduled to depart Washington Dulles (IAD) at 5:30p (Sat), 5:50p (Mon, Tue, Wed, Thu, Fri, Sun), Washington Dulles time, and to land in Newark (EWR) at about 7:00p local time, a scheduled 1h30m. Times are the published ones from the flights we sampled Oct 14–20; check United for today's.
What plane is UA1831?
Boeing 737-900 on 3 of the 7 UA1831 flights from IAD we sampled Oct 14–20; the rest were a Boeing 737 MAX 9 or Airbus A319 or Boeing 737 MAX 8. Airlines swap aircraft, so the plane on a given day can differ.
Does UA1831 fly every day?
Yes — UA1831 flew Atlanta to Washington every day of the week we sampled (Oct 4–10).
Is UA1831 usually on time?
Of 7 UA1831 departures from ATL we sampled Oct 4–10, 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 Atlanta
Timetable from United departures we observed; UA1831 is a United Airlines flight number, and Hop Nonstop is not affiliated with United. Schedules change — confirm with the airline before you travel.