The cheapest flights to Ontario

When to find the cheapest flights to Ontario

  • any
  • December 2022
  • January 2023
  • February 2023
  • March 2023
  • April 2023
  • May 2023
  • June 2023
  • July 2023
  • August 2023
  • September 2023
  • October 2023
  • November 2023
  • day of search
  • price
  • departure city
Las Vegas - Ontario
Frontier Airlinesoutbound: Dec 10, 2022
direct (1h06m)
Frontier Airlines
Frontier Airlinesreturn: Dec 17, 2022
direct (1h09m)
Frontier Airlines
$70 Verify
Similar flights 24 hours ago
Seattle - Ontario
Alaska Airlinesoutbound: Feb 17, 2023
direct (2h30m)
Alaska Airlines
Spirit Airlinesreturn: Feb 26, 2023
1 stop (6h27m)
Spirit Airlines
$271 Verify
Similar flights 27 days ago
  • New York
  • Atlanta
  • Charlotte
  • Chicago
  • Dallas
  • Denver
  • Las Vegas
  • Los Angeles
  • Miami
  • San Francisco
Return
Departure
Availability of fares is not guaranteed for offers found in the last 7 days.
Choose your departure month
*Best price per person, all taxes and surcharges included; found in the last 14 days on liligo.com

All flight tickets to Ontario (USA)

  • any
  • December 2022
  • January 2023
  • February 2023
  • March 2023
  • April 2023
  • May 2023
  • June 2023
  • July 2023
  • August 2023
  • September 2023
  • October 2023
  • November 2023
  • popularity
  • price
  • departure city
Las Vegas - Ontario
Frontier Airlinesoutbound: Dec 10, 2022
direct (1h06m)
Frontier Airlines
Frontier Airlinesreturn: Dec 17, 2022
direct (1h09m)
Frontier Airlines
$70 Verify
Similar flights 24 hours ago
All departures