Skip to content
-
Skip to footer
Help
Search
United States - English
keyboard_arrow_down
Book
My Trip
Travel info
MileagePlus® Program
Deals
Help
Roundtrip
expand_more
1 Passenger, Economy
expand_more
Promotion Code
expand_more
Book with money
expand_more
From
To
close
Departure
fc-booking-departure-date-aria-label
05/09/25
today
Return
fc-booking-return-date-aria-label
05/16/25
today
Search flights
Changed bag rules
and
optional services
Cruise
open_in_new
Packages
open_in_new
Home
United flights
Flights to United States
Flights to Ontario
Best fares
Packages: bundle & save
Premium cabin offers
More flights to Ontario with United Airlines
Taipei - Ontario
Shanghai - Ontario
Singapore - Ontario
Okinawa - Ontario
Tokyo - Ontario
Palma de Mallorca - Ontario
London - Ontario
Edinburgh - Ontario
Tel Aviv - Ontario
Paris - Ontario
Prague - Ontario
Mexico City - Ontario
Cancun - Ontario
San Salvador - Ontario
Guatemala City - Ontario
San Pedro Sula - Ontario
Managua - Ontario
Cabo San Lucas - Ontario
Agana, Guam - Ontario
Birmingham - Ontario
Huntsville - Ontario
Washington, D.C. - Ontario
Fort Myers - Ontario
Fort Lauderdale - Ontario
Jacksonville - Ontario
Miami - Ontario
Orlando - Ontario
Pensacola - Ontario
Tampa - Ontario
Atlanta - Ontario
Indianapolis - Ontario
Wichita - Ontario
Louisville - Ontario
New Orleans - Ontario
Baltimore - Ontario
Kansas City - Ontario
Saint Louis - Ontario
Gulfport - Ontario
Asheville - Ontario
Charlotte - Ontario
Greensboro - Ontario
Raleigh - Ontario
Cincinnati - Ontario
Columbus - Ontario
Dayton - Ontario
Oklahoma City - Ontario
Philadelphia - Ontario
Greenville - Ontario
Chattanooga - Ontario
Memphis - Ontario
View more
