UA1821: United flight 1821
New York LaGuardia (LGA) → Houston (IAH) · departs 8:15p, lands 11:32p local · Mon, Tue, Wed, Thu, Fri, Sun
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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UA1821 timetable
Published departure and arrival times, each in its airport's local time, from the flights we sampled Nov 5–11.
| Route | Departs | Arrives | Scheduled | Days |
|---|---|---|---|---|
| LGA → IAHNew York LaGuardia to Houston | 8:15p | 11:32p | 4h17m | Mon, Tue, Wed, Thu, Fri, Sun |
Other nonstops from New York LaGuardia to Houston
The departures either side of UA1821. Times are New York LaGuardia time.
| Flight | Departs | Days |
|---|---|---|
| United UA2161 | 3:39p | Mon–Fri |
| United UA2446 | 5:45p | Daily |
| Delta DL2109 | 6:25p | Daily |
| This flight UA1821 | 8:15p | Mon, Tue, Wed, Thu, Fri, Sun |
All 12 flights from LGA to IAH, by time →
Flying back from Houston
United flies Houston to New York LaGuardia nonstop 52 times a week, from 7:00a to 6:40p: 7:00a UA1697 · 10:00a UA678 · 2:25p UA1805 · 4:25p UA334 · 6:40p UA2495 · every nonstop IAH → LGA →
How UA1821 ran in our sample
6 of 6 departures left within 15 minutes of schedule (Nov 5–11). Only flights that departed are counted: cancellations are not in our data.
Aircraft: Boeing 737-800 on 5 of 6; also Boeing 737 MAX 8 (1).
What time does UA1821 leave New York LaGuardia?
UA1821 is scheduled to depart New York LaGuardia (LGA) at 8:15p (Mon, Tue, Wed, Thu, Fri, Sun), New York LaGuardia time, and to land in Houston (IAH) at about 11:32p local time, a scheduled 4h17m. Times are the published ones from the flights we sampled Nov 5–11; check United for today's.
What plane is UA1821?
Boeing 737-800 on 5 of the 6 UA1821 flights from LGA we sampled Nov 5–11; the rest were a Boeing 737 MAX 8. Airlines swap aircraft, so the plane on a given day can differ.
Does UA1821 fly every day?
In the week we sampled (Nov 5–11), UA1821 flew New York LaGuardia to Houston on Mon, Tue, Wed, Thu, Fri, Sun.
Is UA1821 usually on time?
Of 6 UA1821 departures from LGA we sampled Nov 5–11, 6 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 New York LaGuardia
Timetable from United departures we observed; UA1821 is a United Airlines flight number, and Hop Nonstop is not affiliated with United. Schedules change — confirm with the airline before you travel.