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Cheap Flights To Ontario, CA

  • TipNovember is the cheapest month to fly to Ontario, California

Best Deals to Ontario, California Last modified: Oct 16, 2017 4:25 -04:00Prices shown were found by travelers like you over the past 30 days

We've scanned 38,522,067,418 round trip itineraries and found the cheapest flights to Ontario, California. Alaska & Frontier frequently offer the best deals to Ontario, California flights, or select your preferred carrier below to see the cheapest days to fly.

Alaska
SJCONT
Sat 11/4
nonstop
ONTSJC
Mon 11/6
nonstop
Alaska
SFOONT
Mon 11/13
nonstop
ONTSFO
Thu 11/16
nonstop
Alaska
OAKONT
Sat 12/2
nonstop
ONTOAK
Mon 12/11
nonstop
Alaska
PDXONT
Thu 12/7
nonstop
ONTPDX
Wed 12/13
nonstop
$107
Frontier
AUSONT
Tue 10/17
nonstop
ONTAUS
Tue 10/24
nonstop
$107

Cheap Flights from Ontario, California (ONT)

Looking for somewhere to go? Start here.

Cheap Flights to Ontario, California (ONT) - FareCompare