The cheapest flights to Ontario

When to find the cheapest flights to Ontario

  • any
  • February 2020
  • March 2020
  • April 2020
  • May 2020
  • June 2020
  • July 2020
  • August 2020
  • September 2020
  • October 2020
  • November 2020
  • December 2020
  • January 2021
  • day of search
  • price
  • departure city
Frontier Airlinesoutbound: Feb 28, 2020
1 stop (13h34m)
Frontier Airlines
Frontier Airlinesreturn: Mar 2, 2020
1 stop (9h10m)
Frontier Airlines
Frontier Airlinesoutbound: Mar 6, 2020
1 stop (13h42m)
Frontier Airlines
Frontier Airlinesreturn: Mar 9, 2020
1 stop (11h34m)
Frontier Airlines
Alaska Airlinesoutbound: Feb 25, 2020
direct (2h39m)
Alaska Airlines
Alaska Airlinesreturn: Feb 29, 2020
direct (2h45m)
Alaska Airlines
United Airlinesoutbound: Jun 4, 2020
1 stop (9h13m)
United Airlines
Frontier Airlinesreturn: Jun 8, 2020
1 stop (17h20m)
Frontier Airlines
JetBlueoutbound: May 1, 2020
direct (6h16m)
JetBlue
Frontier Airlinesreturn: May 6, 2020
direct (5h12m)
Frontier 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
  • February 2020
  • March 2020
  • April 2020
  • May 2020
  • June 2020
  • July 2020
  • August 2020
  • September 2020
  • October 2020
  • November 2020
  • December 2020
  • January 2021
  • popularity
  • price
  • departure city
Frontier Airlinesoutbound: Jun 19, 2020
1 stop (10h25m)
Frontier Airlines
Alaska Airlinesreturn: Jun 22, 2020
direct (3h20m)
Alaska Airlines
Frontier Airlinesoutbound: Mar 6, 2020
1 stop (13h42m)
Frontier Airlines
Frontier Airlinesreturn: Mar 9, 2020
1 stop (11h34m)
Frontier Airlines
Frontier Airlinesoutbound: Feb 28, 2020
1 stop (13h34m)
Frontier Airlines
Frontier Airlinesreturn: Mar 2, 2020
1 stop (9h10m)
Frontier Airlines