Cheap flights to United States from Ontario
Round trips from Ontario from $44. Cheapest dates, deal ratings and where to book.
- Las Vegas: $44, 2026-10-19 to 2026-10-30
- San Francisco: $66, 2026-12-09 to 2026-12-12
- Denver: $92, 2026-11-10 to 2026-11-16
- Salt Lake City: $144, 2026-10-19 to 2026-10-24
- Seattle: $146, 2026-11-12 to 2026-11-15
- Sacramento: $151, 2026-11-19 to 2026-11-23
- Chicago: $153, 2026-10-15 to 2026-10-19
- Boise: $155, 2027-03-08 to 2027-03-15