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Cheap Flights To Ontario, CA

  • TipMay 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 24, 2017 0:30 -05:00Prices shown were found by travelers like you over the past 30 days

We've scanned 29,728,241,527 round trip itineraries and found the cheapest flights to Ontario, California. United & American frequently offer the best deals to Ontario, California flights, or select your preferred carrier below to see the cheapest days to fly.

United
SFOONT
Sat 3/4
nonstop
ONTSFO
Tue 3/7
nonstop
$107
American
PHXONT
Sat 3/18
nonstop
ONTPHX
Tue 3/21
nonstop
$117
American
SMFONT
Mon 3/13
nonstop
ONTSMF
Tue 3/14
nonstop
$147
Alaska
SLCONT
Mon 3/20
1 stop
ONTSLC
Fri 3/24
1 stop
$251
American
ATLONT
Tue 3/7
nonstop
ONTATL
Fri 3/10
nonstop
$298

Cheap Flights from Ontario, California (ONT)

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