Cheap flights to Ontario
LA/Ontario International is the only airport serving visitors heading into this Californian city from European gateways like Warsaw, Milan and Prague. If you are planning a visit between spring and autumn, booking several months ahead usually secures better fares than waiting for last‑minute deals. The search phrase people type most often for this route is cheap flights to Ontario, which surfaces exactly the fare tools and airline comparisons you need before confirming dates.
Flights to Ontario — where from
| From | Airline | Flight | Date | Price from |
|---|---|---|---|---|
| London | United Airlines | with a stop | 14 Apr 2027 | from $642 |
| Warsaw | KLM Royal Dutch Airlines | with a stop | 14 Dec 2026 | from $1,015 |
| Krakow | Lufthansa | with a stop | 20 Nov 2026 | from $1,312 |
Airports — Ontario
LA/Ontario International sits about twenty miles from downtown Los Angeles, so getting into town involves either a shuttle or taxi ride that typically takes around forty minutes depending on traffic. You can also catch public buses or use rideshare services to reach central neighborhoods without paying premium airport rates. Most visitors find the transfer straightforward once they know which option fits their budget and arrival time.
When to go
The quietest months for travel into Ontario are January through March, when fewer flights operate but prices tend to drop noticeably. Summer sees heavier traffic as families visit California during school holidays, while December brings a mix of holiday demand and discounted early‑bird fares. Weekday departures on Tuesdays or Wednesdays often carry lighter schedules than weekend flights, giving you more choice when picking times.