United · ONT
What gates does United use at Ontario Airport (ONT)?
United uses gates 201, 202, 203 and 204 at Ontario Airport (ONT), mainly in Terminal 2, with about 7-8 departures a day (Oct 3–5, 2026). It is the main airline at 3 of them.
Based on 294 United flights at ONT, Oct 3–5, 2026 (full days)
How United compares at ONT
- 6th of the 10 airlines with regular flights at ONT by departures: 9% of them (7-8 departures a day of about 79 a day).
- 9% of the seats leaving ONT: about 1,169 a day, 159 per departure.
- 1.2 turns a day at each gate it turns planes at, 60% fewer than the airport’s 2.9.
- Median turn at the gate: 64 min, 10 min longer than the airport median (54 min).
- 9% of its departures are regional jets, against 11% across ONT.
- At ONT, United’s 7-8 departures a day compare with Frontier’s 8 and Delta’s 9. United has 3 gates of its own; Frontier 2; Delta 3.
Where United flies nonstop from ONT
4 nonstop destinations. Nonstop routes seen Oct 3–5, 2026; a few days of data can miss weekly or seasonal routes.
| Destination | Flights | Other airlines on this route |
|---|---|---|
| San FranciscoSFO | 3-4/day | Frontier (4-5/week) |
| DenverDEN | 2/day | Southwest (4/day), Frontier (2/day) |
| Chicago O'HareORD | 1/day | none seen |
| HoustonIAH | 1/day | Frontier (4-5/week) |
When United flies at ONT
- First departure of the day usually around 4:50 am, the last around 6:30 pm.
- Busiest hour: 10:00 pm–11:00 pm, with about 2 of its arrivals and departures.
- About 5 of its aircraft spend the night at ONT (arrive in the evening, leave the next morning).
United’s aircraft at ONT
| Aircraft | Departures | Seats each |
|---|---|---|
| 737 MAX 9 | 2/day | 179 |
| 737-900 | 2/day | 179 |
| 737-800 | 1-2/day | 166 |
| A319 | 1/day | 126 |
| E175 | 4-5/week | 76 |
About 1,169 seats leave ONT on United each day. Of the gates it holds, 3 have taken a narrow-body. Seats are capacity from each airline’s seat map per aircraft type, not passengers.
United’s gates at ONT
Terminal 2 201, 202, 203
Held = the airline flying the gate most (regional partners count as their brand).
Gates it shares
| Gate | Who holds it | Other airlines there |
|---|---|---|
| 204 | Common use | Delta |
About this data
Based on 3 full days of flights at ONT, Oct 3–5, 2026. Gates of its own are the gates where United flies the most (regional partners count as their brand). Every one of its departures has a seat count.
United at ONT: questions
What terminal is United at Ontario Airport (ONT)?
United flies from Terminal 2 at Ontario Airport (ONT).
What gates does United use at ONT?
United has 3 gates at ONT (the airline flying each one most): 201, 202 and 203. It used 4 gates in all over Oct 3–5, 2026.
How many flights a day does United have from ONT?
About 7-8 departures a day and 1,169 seats, averaged over Oct 3–5, 2026.
Where does United fly nonstop from ONT?
United flies nonstop to 4 cities from ONT, the most often to San Francisco, Denver, Chicago O'Hare and Houston. Routes seen Oct 3–5, 2026.
When is United’s first flight out of ONT?
Usually around 4:50 am; the last leaves around 6:30 pm.
Does United share gates at ONT?
Yes: 1 gate it uses is shared or used most by another airline, e.g. gate 204 with Delta.
Other airlines at ONT
All of ONT’s gates by airline · United at every airport we map · Nonstop routes from ONT