Find which airlines fly direct from Ontario to San Francisco, which days they fly and book direct flights.
Direct departures
Monday
Air Canada, Frontier, United Airlines, +2 more
Air Canada, Frontier, +3 more
1
2
Tuesday
Air Canada, Copa Airlines, Frontier, +2 more
Air Canada, Copa Airlines, +3 more
1
2
Wednesday
Air Canada, Copa Airlines, Frontier, +2 more
Air Canada, Copa Airlines, +3 more
1
2
Thursday
Air Canada, Copa Airlines, Emirates, +2 more
Air Canada, Copa Airlines, +3 more
1
2
Friday
Air Canada, Emirates, Frontier, +2 more
Air Canada, Emirates, +3 more
1
2
Saturday
Air Canada, Emirates, Frontier, +2 more
Air Canada, Emirates, +3 more
1
2
Sunday
Air Canada, Copa Airlines, Emirates, +2 more
Air Canada, Copa Airlines, +3 more
1
2
Direct returns
Monday
Air Canada, Frontier, United Airlines, +1 more
Air Canada, Frontier, +2 more
1
Tuesday
Air Canada, Copa Airlines, Frontier, +2 more
Air Canada, Copa Airlines, +3 more
1
2
Wednesday
Air Canada, Copa Airlines, Frontier, +2 more
Air Canada, Copa Airlines, +3 more
1
2
Thursday
Air Canada, Copa Airlines, Frontier, +2 more
Air Canada, Copa Airlines, +3 more
1
2
Friday
Air Canada, Frontier, United Airlines, +1 more
Air Canada, Frontier, +2 more
1
Saturday
Air Canada, Frontier, United Airlines, +1 more
Air Canada, Frontier, +2 more
1
Sunday
Air Canada, Copa Airlines, Frontier, +2 more
Air Canada, Copa Airlines, +3 more
1
2