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: $57, 2026-11-12 to 2026-11-18
- Denver: $92, 2026-11-10 to 2026-11-16
- Seattle: $132, 2026-11-12 to 2026-11-15
- Salt Lake City: $144, 2026-10-19 to 2026-10-24
- 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