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Cheap Flights To Ontario, CA

  • TipMarch is the cheapest month to fly to Ontario, California
  • Tip$110 is the average round-trip fare price from PDX to ONT

Best Deals to Ontario, California Last modified: Feb 22, 2017 0:31 -05:00Prices shown were found by travelers like you over the past 30 days

We've scanned 28,784,057,981 round trip itineraries and found the cheapest flights to Ontario, California. Alaska & American frequently offer the best deals to Ontario, California flights, or select your preferred carrier below to see the cheapest days to fly.

Alaska
SEAONT
Sat 3/11
nonstop
ONTSEA
Thu 3/23
nonstop
$137
American
SMFONT
Mon 3/13
nonstop
ONTSMF
Tue 3/14
nonstop
$142
Alaska
SJCONT
Fri 4/14
1 stop
ONTSJC
Sun 4/16
1 stop
$287
American
ATLONT
Mon 2/27
nonstop
ONTATL
Sun 3/5
nonstop
$304
American
PHLONT
Thu 3/9
1 stop
ONTPHL
Tue 3/14
1 stop
$314

Cheap Flights from Ontario, California (ONT)

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Cheap Flights to Ontario, California - Round trip airfares for Ontario, California flights (ONT)