The cheapest flights to Ontario

When to find the cheapest flights to Ontario

  • any
  • November 2019
  • December 2019
  • January 2020
  • February 2020
  • March 2020
  • April 2020
  • May 2020
  • June 2020
  • July 2020
  • August 2020
  • September 2020
  • October 2020
  • day of search
  • price
  • departure city
American Airlinesoutbound: Jan 2, 2020
1 stop (7h44m)
American Airlines
American Airlinesreturn: Jan 2, 2020
1 stop (7h31m)
American Airlines
Southwest Airlinesoutbound: Nov 24, 2019
1 stop (9h05m)
Southwest Airlines
Frontier Airlinesreturn: Nov 24, 2019
1 stop (24h34m)
Frontier Airlines
JetBlueoutbound: Feb 15, 2020
direct (6h35m)
JetBlue
Alaska Airlinesreturn: Feb 21, 2020
direct (5h21m)
Alaska Airlines
Spirit Airlinesoutbound: Dec 22, 2019
1 stop (23h43m)
Spirit Airlines
Southwest Airlinesreturn: Jan 3, 2020
1 stop (13h22m)
Southwest Airlines
Alaska Airlinesoutbound: Dec 24, 2019
direct (2h35m)
Alaska Airlines
United Airlinesreturn: Jan 2, 2020
1 stop (4h49m)
United Airlines
Frontier Airlinesoutbound: Dec 12, 2019
1 stop (11h59m)
Frontier Airlines
Frontier Airlinesreturn: Dec 16, 2019
1 stop (14h25m)
Frontier Airlines
United Airlinesoutbound: Mar 28, 2020
1 stop (5h33m)
United Airlines
United Airlinesreturn: Mar 31, 2020
1 stop (5h03m)
United Airlines
  • New York
  • Atlanta
  • Charlotte
  • Chicago
  • Dallas
  • Denver
  • Las Vegas
  • Los Angeles
  • Miami
  • San Francisco
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All flight tickets to Ontario (USA)

  • any
  • November 2019
  • December 2019
  • January 2020
  • February 2020
  • March 2020
  • April 2020
  • May 2020
  • June 2020
  • July 2020
  • August 2020
  • September 2020
  • October 2020
  • popularity
  • price
  • departure city
Southwest Airlinesoutbound: Nov 24, 2019
1 stop (9h05m)
Southwest Airlines
Frontier Airlinesreturn: Nov 24, 2019
1 stop (24h34m)
Frontier Airlines
American Airlinesoutbound: Jan 2, 2020
1 stop (7h44m)
American Airlines
American Airlinesreturn: Jan 2, 2020
1 stop (7h31m)
American Airlines