Cheap Flights To Ontario, CA

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

Best Deals to Ontario, California Last modified: Sep 25, 2018 3:52 -04:00Prices shown were found by travelers like you over the past 30 days

We've scanned 48,195,047,545 round trip itineraries and found the cheapest flights to Ontario, California. American & Alaska frequently offer the best deals to Ontario, California flights, or select your preferred carrier below to see the cheapest days to fly.

American
PHXONT
Tue 10/9
nonstop
ONTPHX
Wed 10/10
nonstop
$165
Alaska
SJCONT
Mon 10/8
nonstop
ONTSJC
Mon 10/15
nonstop
$201
Alaska
SFOONT
Thu 10/18
nonstop
ONTSFO
Thu 10/18
nonstop
$209
American
DFWONT
Tue 10/16
nonstop
ONTDFW
Mon 10/22
nonstop
$211
American
OAKONT
Sat 10/6
1 stop
ONTOAK
Mon 10/8
1 stop
$230

Cheap Flights from Ontario, California (ONT)

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Cheap Flights to Ontario, California from $147 round trip (ONT) - FareCompare