Flights to Ontario (ONT)

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Airlines
Stops
Fare Type
Nearby Airports
When to Travel
$342RT
Midweek Fare
Columbus, OH (CMH)toOntario, CA (ONT)
Best Times to Go
Delta
$472RT
Columbus, OH (CMH)toOntario, CA (ONT)
Sat, Feb 8 - Tue, Feb 11
United
$534RT
Weekend Deal
Columbus, OH (CMH)toOntario, CA (ONT)
Fri, Mar 14 - Mon, Mar 17
American
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$286RT
Midweek Fare
Albuquerque, NM (ABQ)toOntario, CA (ONT)
Wed, Mar 19 - Wed, Mar 26
Delta
$406RT
Weekend Deal
Albuquerque, NM (ABQ)toOntario, CA (ONT)
Fri, Feb 7 - Mon, Feb 10
Delta
$416RT
Weekend Deal
Albuquerque, NM (ABQ)toOntario, CA (ONT)
Fri, Feb 14 - Sun, Feb 16
American
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$435RT
Anchorage, AK (ANC)toOntario, CA (ONT)
Mon, Feb 24 - Mon, Mar 3
Delta
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$140RT
Atlanta, GA (ATL)toOntario, CA (ONT)
Best Times to Go
Frontier
$342RT
Midweek Fare
Atlanta, GA (ATL)toOntario, CA (ONT)
Wed, Apr 16 - Wed, Apr 23
Alaska
$439RT
Weekend Deal
Atlanta, GA (ATL)toOntario, CA (ONT)
Fri, May 2 - Tue, May 6
Alaska
See more deals from Atlanta, GA (ATL)
$120RT
Austin, TX (AUS)toOntario, CA (ONT)
Best Times to Go
Frontier
$228RT
Austin, TX (AUS)toOntario, CA (ONT)
Fri, Feb 28 - Fri, Mar 7
Frontier
$256RT
Midweek Fare
Austin, TX (AUS)toOntario, CA (ONT)
Thu, May 1 - Thu, May 8
Delta
See more deals from Austin, TX (AUS)
$317RT
Baltimore, MD (BWI)toOntario, CA (ONT)
Best Times to Go
Delta
$326RT
Baltimore, MD (BWI)toOntario, CA (ONT)
Best Times to Go
Delta
$342RT
Baltimore, MD (BWI)toOntario, CA (ONT)
Mon, May 5 - Fri, May 9
Delta
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$633RT
Baton Rouge, LA (BTR)toOntario, CA (ONT)
Wed, Jun 11 - Mon, Jun 16
Delta
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$332RT
Bellingham, WA (BLI)toOntario, CA (ONT)
Mon, Feb 24 - Fri, Feb 28
Alaska
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$345RT
Billings, MT (BIL)toOntario, CA (ONT)
Sat, May 3 - Wed, May 7
Alaska
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$232RT
Boise, ID (BOI)toOntario, CA (ONT)
Best Times to Go
Delta
$252RT
Boise, ID (BOI)toOntario, CA (ONT)
Mon, Mar 10 - Mon, Mar 17
Delta
$260RT
Weekend Deal
Boise, ID (BOI)toOntario, CA (ONT)
Fri, Feb 7 - Mon, Feb 10
Delta
See more deals from Boise, ID (BOI)
$308RT
Boston, MA (BOS)toOntario, CA (ONT)
Best Times to Go
Delta
$312RT
Midweek Fare
Boston, MA (BOS)toOntario, CA (ONT)
Tue, Mar 18 - Tue, Mar 25
Delta
$316RT
Midweek Fare
Boston, MA (BOS)toOntario, CA (ONT)
Tue, Apr 1 - Tue, Apr 8
Delta
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$236RT
Weekend Deal
Bozeman, MT (BZN)toOntario, CA (ONT)
Fri, Feb 7 - Tue, Feb 11
Delta
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$379RT
Midweek Fare
Buffalo, NY (BUF)toOntario, CA (ONT)
Wed, Mar 19 - Wed, Mar 26
Delta
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$503RT
Weekend Deal
Cedar Rapids, IA (CID)toOntario, CA (ONT)
Thu, May 8 - Sun, May 11
American
See more deals from Cedar Rapids, IA (CID)
$330RT
Weekend Deal
Charleston, SC (CHS)toOntario, CA (ONT)
Fri, Feb 21 - Mon, Feb 24
Delta
See more deals from Charleston, SC (CHS)
$328RT
Midweek Fare
Charlotte, NC (CLT)toOntario, CA (ONT)
Best Times to Go
Delta
$428RT
Charlotte, NC (CLT)toOntario, CA (ONT)
Sun, May 25 - Sat, May 31
United
$539RT
Nonstop|Weekend Deal
Charlotte, NC (CLT)toOntario, CA (ONT)
Thu, Mar 6 - Sun, Mar 9
American
See more deals from Charlotte, NC (CLT)
$120RT
Midweek Fare
Chicago, IL (MDW)toOntario, CA (ONT)
Best Times to Go
Frontier
$256RT
Weekend Deal
Chicago, IL (MDW)toOntario, CA (ONT)
Best Times to Go
Delta
$378RT
Chicago, IL (MDW)toOntario, CA (ONT)
Sat, Jun 7 - Sat, Jun 14
Delta
See more deals from Chicago, IL (MDW)
$120RT
Chicago, IL (ORD)toOntario, CA (ONT)
Best Times to Go
Frontier
$250RT
Midweek Fare
Chicago, IL (ORD)toOntario, CA (ONT)
Wed, Mar 26 - Wed, Apr 2
Frontier
$256RT
Chicago, IL (ORD)toOntario, CA (ONT)
Best Times to Go
Delta
See more deals from Chicago, IL (ORD)
$140RT
Cincinnati, OH (CVG)toOntario, CA (ONT)
Mon, Mar 3 - Mon, Mar 10
Frontier
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$160RT
Midweek Fare
Cleveland, OH (CLE)toOntario, CA (ONT)
Best Times to Go
Frontier
$367RT
Weekend Deal
Cleveland, OH (CLE)toOntario, CA (ONT)
Thu, May 1 - Mon, May 5
Delta
$636RT
Cleveland, OH (CLE)toOntario, CA (ONT)
Wed, Jun 11 - Sun, Jun 15
American
See more deals from Cleveland, OH (CLE)
$464RT
Corpus Christi, TX (CRP)toOntario, CA (ONT)
Fri, Feb 21 - Fri, Feb 28
American
See more deals from Corpus Christi, TX (CRP)
$236RT
Dallas, TX (DAL)toOntario, CA (ONT)
Best Times to Go
Delta
$307RT
Midweek Fare
Dallas, TX (DAL)toOntario, CA (ONT)
Wed, Apr 16 - Wed, Apr 23
Delta
$368RT
Dallas, TX (DAL)toOntario, CA (ONT)
Sat, Feb 8 - Tue, Feb 11
Delta
See more deals from Dallas, TX (DAL)
$106RT
Nonstop
Dallas/Fort Worth, TX (DFW)toOntario, CA (ONT)
Best Times to Go
Frontier
$119RT
Midweek Fare
Dallas/Fort Worth, TX (DFW)toOntario, CA (ONT)
Wed, Apr 2 - Wed, Apr 9
Frontier
$142RT
Nonstop|Weekend Deal
Dallas/Fort Worth, TX (DFW)toOntario, CA (ONT)
Fri, Feb 21 - Mon, Feb 24
Frontier
See more deals from Dallas, TX (DFW)
$58RT
Nonstop|Midweek Fare
Denver, CO (DEN)toOntario, CA (ONT)
Best Times to Go
Frontier
$63RT
Nonstop|Midweek Fare
Denver, CO (DEN)toOntario, CA (ONT)
Wed, Mar 5 - Wed, Mar 12
Frontier
$68RT
Nonstop|Midweek Fare
Denver, CO (DEN)toOntario, CA (ONT)
Wed, Apr 2 - Wed, Apr 9
Frontier
See more deals from Denver, CO (DEN)
$406RT
Midweek Fare
Des Moines, IA (DSM)toOntario, CA (ONT)
Wed, Apr 23 - Tue, Apr 29
Delta
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$352RT
Midweek Fare
Detroit, MI (DTW)toOntario, CA (ONT)
Best Times to Go
Delta
$429RT
Weekend Deal
Detroit, MI (DTW)toOntario, CA (ONT)
Thu, May 8 - Tue, May 13
Alaska
$442RT
Midweek Fare
Detroit, MI (DTW)toOntario, CA (ONT)
Tue, Feb 25 - Tue, Mar 4
American
See more deals from Detroit, MI (DTW)
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