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Denver, CO (DEN) to Ontario, CA (ONT)
These results cover a metro area with several airports. Review your choices carefully.
 
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Continental
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UNITED
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US Airways
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Midwest Airlines
Frontier Airlines
Frontier Airlines
Nonstop
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1 stop
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Prices are per person for roundtrip travel; they are e-ticket prices and include all flight taxes and fees. Prices do not include baggage fees or other fees charged directly by the airline.
 1  Choose a departing flight or view complete roundtrips
Sort by:   checkedPrice   not checkedDuration   not checkedDeparture time   not checkedArrival time  
 
Roundtrip: from  $213.99 + $21.21 taxes & fees = $235.20
6:20 pm Depart Denver (DEN)
Arrive Ontario (ONT) 7:35 pm 		Mon 19-Apr
Duration: 2hr 15mn
UNITED UNITED 215
Nonstop flight
 
  Select this departure  
 
Roundtrip: from  $213.99 + $21.21 taxes & fees = $235.20
6:20 pm Depart Denver (DEN)
Arrive Ontario (ONT) 7:35 pm 		Mon 19-Apr
Duration: 2hr 15mn
Continental Continental Continental 6332 operated by UNITED6332
Nonstop flight
 
  Select this departure  
 
Roundtrip: from  $213.99 + $21.21 taxes & fees = $235.20
9:10 pm Depart Denver (DEN)
Arrive Ontario (ONT) 10:27 pm 		Mon 19-Apr
Duration: 2hr 17mn
Continental Continental Continental 6364 operated by UNITED6364
Nonstop flight
 
  Select this departure  
 
Roundtrip: from  $213.99 + $21.21 taxes & fees = $235.20
9:10 pm Depart Denver (DEN)
Arrive Ontario (ONT) 10:27 pm 		Mon 19-Apr
Duration: 2hr 17mn
UNITED UNITED 271
Nonstop flight
 
  Select this departure  
 
Roundtrip: from  $213.99 + $21.21 taxes & fees = $235.20
11:45 am Depart Denver (DEN)
Arrive Ontario (ONT) 1:03 pm 		Mon 19-Apr
Duration: 2hr 18mn
Continental Continental Continental 6460 operated by UNITED6460
Nonstop flight
 
  Select this departure  
 
Roundtrip: from  $213.99 + $21.21 taxes & fees = $235.20
11:45 am Depart Denver (DEN)
Arrive Ontario (ONT) 1:03 pm 		Mon 19-Apr
Duration: 2hr 18mn
UNITED UNITED 315
Nonstop flight
 
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Roundtrip: from  $213.99 + $31.81 taxes & fees = $245.80
3:15 pm Depart Denver (DEN)
Arrive Ontario (ONT) 8:31 pm 		Mon 19-Apr
Duration: 6hr 16mn
UNITED UNITED 735  / UNITED 6140 operated by /UNITED EXPRESS/SKYWEST AIRLINE6140
Connect in San Francisco (SFO)
 
  Select this departure  
 
Roundtrip: from  $213.99 + $42.41 taxes & fees = $256.40
3:15 pm Depart Denver (DEN)
Arrive Ontario (ONT) 8:31 pm 		Mon 19-Apr
Duration: 6hr 16mn
UNITED UNITED UNITED 6067 operated by /UNITED EXPRESS/SKYWEST AIRLINE6067  / UNITED 6095 operated by /UNITED EXPRESS/SKYWEST AIRLINE6095  / UNITED 6140 operated by /UNITED EXPRESS/SKYWEST AIRLINE6140
Connect in Salt Lake City (SLC), San Francisco (SFO)
 
  Select this departure  
 
Roundtrip: from  $229.00 + $42.40 taxes & fees = $271.40
2:15 pm Depart Denver (DEN)
Arrive Ontario (ONT) 8:31 pm 		Mon 19-Apr
Duration: 7hr 16mn
UNITED UNITED 421  / UNITED 6095 operated by /UNITED EXPRESS/SKYWEST AIRLINE6095  / UNITED 6140 operated by /UNITED EXPRESS/SKYWEST AIRLINE6140
Connect in Salt Lake City (SLC), San Francisco (SFO)
 
  Select this departure  
 
Roundtrip: from  $245.99 + $31.81 taxes & fees = $277.80
6:15 am Depart Denver (DEN)
Arrive Ontario (ONT) 9:23 am 		Mon 19-Apr
Duration: 4hr 8mn
Delta Delta Delta 953 operated by /MESABA DBA DELTA CONNECTION953  / Delta 4753 operated by /SKYWEST DBA DELTA CONNECTION4753
Connect in Salt Lake City (SLC)
 
  Select this departure  
 
Roundtrip: from  $245.99 + $31.81 taxes & fees = $277.80
5:30 pm Depart Denver (DEN)
Arrive Ontario (ONT) 8:40 pm 		Mon 19-Apr
Duration: 4hr 10mn
Delta Delta 1847  / Delta 4615 operated by /SKYWEST DBA DELTA CONNECTION4615
Connect in Salt Lake City (SLC)
 
  Select this departure  
 
Roundtrip: from  $245.99 + $31.81 taxes & fees = $277.80
4:28 pm Depart Denver (DEN)
Arrive Ontario (ONT) 8:40 pm 		Mon 19-Apr
Duration: 5hr 12mn
Delta Delta Delta 954 operated by /MESABA DBA DELTA CONNECTION954  / Delta 4615 operated by /SKYWEST DBA DELTA CONNECTION4615
Connect in Salt Lake City (SLC)
 
  Select this departure  
 
Roundtrip: from  $247.99 + $31.81 taxes & fees = $279.80
6:10 pm Depart Denver (DEN)
Arrive Ontario (ONT) 9:26 pm 		Mon 19-Apr
Duration: 4hr 16mn
Frontier Airlines Frontier Airlines 859
US Airways US Airways 639
Connect in Phoenix (Sky Harbor Intl.)
 
  Select this departure  
 
Roundtrip: from  $247.99 + $31.81 taxes & fees = $279.80
8:15 am Depart Denver (DEN)
Arrive Ontario (ONT) 11:42 am 		Mon 19-Apr
Duration: 4hr 27mn
Frontier Airlines Frontier Airlines 851
US Airways US Airways 1551
Connect in Phoenix (Sky Harbor Intl.)
 
  Select this departure  
 
Roundtrip: from  $247.99 + $31.81 taxes & fees = $279.80
1:25 pm Depart Denver (DEN)
Arrive Ontario (ONT) 6:14 pm 		Mon 19-Apr
Duration: 5hr 49mn
Midwest Airlines Midwest Airlines Midwest Airlines 857 operated by Frontier Airlines857
US Airways US Airways 644
Connect in Phoenix (Sky Harbor Intl.)
 
  Select this departure  
 
Roundtrip: from  $247.99 + $31.81 taxes & fees = $279.80
1:25 pm Depart Denver (DEN)
Arrive Ontario (ONT) 6:14 pm 		Mon 19-Apr
Duration: 5hr 49mn
Frontier Airlines Frontier Airlines 857
US Airways US Airways 644
Connect in Phoenix (Sky Harbor Intl.)
 
  Select this departure  
 
Roundtrip: from  $254.00 + $31.80 taxes & fees = $285.80
5:10 pm Depart Denver (DEN)
Arrive Ontario (ONT) 10:45 pm 		Mon 19-Apr
Duration: 6hr 35mn
American Airlines American Airlines American Airlines 6845 operated by Alaska Airlines6845  / American Airlines 6773 operated by Alaska Airlines6773
Connect in Seattle (SEA)
 
  Select this departure  
 
Roundtrip: from  $264.00 + $31.80 taxes & fees = $295.80
11:55 am Depart Denver (DEN)
Arrive Ontario (ONT) 3:11 pm 		Mon 19-Apr
Duration: 4hr 16mn
UNITED UNITED 739
US Airways US Airways 638
Connect in Phoenix (Sky Harbor Intl.)
 
  Select this departure  
 
Roundtrip: from  $264.00 + $31.80 taxes & fees = $295.80
11:30 am Depart Denver (DEN)
Arrive Ontario (ONT) 3:11 pm 		Mon 19-Apr
Duration: 4hr 41mn
Continental Continental Continental 6603 operated by UNITED6603
US Airways US Airways 638
Connect in Phoenix (Sky Harbor Intl.)
 
  Select this departure  
 
Roundtrip: from  $267.00 + $31.80 taxes & fees = $298.80
11:45 am Depart Denver (DEN)
Arrive Ontario (ONT) 3:48 pm 		Mon 19-Apr
Duration: 5hr 3mn
Delta Delta Delta 4659 operated by /SKYWEST DBA DELTA CONNECTION4659  / Delta 4749 operated by /SKYWEST DBA DELTA CONNECTION4749
Connect in Salt Lake City (SLC)
 
  Select this departure  
 
Roundtrip: from  $267.00 + $31.80 taxes & fees = $298.80
8:25 am Depart Denver (DEN)
Arrive Ontario (ONT) 1:23 pm 		Mon 19-Apr
Duration: 5hr 58mn
UNITED UNITED 741  / UNITED 6350 operated by /UNITED EXPRESS/SKYWEST AIRLINE6350
Connect in San Francisco (SFO)
 
  Select this departure  
 
Roundtrip: from  $268.00 + $31.80 taxes & fees = $299.80
3:15 pm Depart Denver (DEN)
Arrive Ontario (ONT) 8:31 pm 		Mon 19-Apr
Duration: 6hr 16mn
Continental Continental Continental 6600 operated by UNITED6600
UNITED UNITED UNITED 6140 operated by /UNITED EXPRESS/SKYWEST AIRLINE6140
Connect in San Francisco (SFO)
 
  Select this departure  
 
Roundtrip: from  $278.00 + $31.80 taxes & fees = $309.80
8:25 am Depart Denver (DEN)
Arrive Ontario (ONT) 1:23 pm 		Mon 19-Apr
Duration: 5hr 58mn
Midwest Airlines Midwest Airlines Midwest Airlines 653 operated by Frontier Airlines653
UNITED UNITED UNITED 6350 operated by /UNITED EXPRESS/SKYWEST AIRLINE6350
Connect in San Francisco (SFO)
 
  Select this departure  
 
Roundtrip: from  $278.00 + $31.80 taxes & fees = $309.80
8:25 am Depart Denver (DEN)
Arrive Ontario (ONT) 1:23 pm 		Mon 19-Apr
Duration: 5hr 58mn
Frontier Airlines Frontier Airlines 653
UNITED UNITED UNITED 6350 operated by /UNITED EXPRESS/SKYWEST AIRLINE6350
Connect in San Francisco (SFO)
 
  Select this departure  
 
Roundtrip: from  $278.99 + $31.81 taxes & fees = $310.80
6:00 am Depart Denver (DEN)
Arrive Ontario (ONT) 8:59 am 		Mon 19-Apr
Duration: 3hr 59mn
US Airways US Airways 652  / 641
Connect in Phoenix (Sky Harbor Intl.)
 
  Select this departure  
 
Roundtrip: from  $278.99 + $31.81 taxes & fees = $310.80
12:10 pm Depart Denver (DEN)
Arrive Ontario (ONT) 3:11 pm 		Mon 19-Apr
Duration: 4hr 1mn
US Airways US Airways 367  / 638
Connect in Phoenix (Sky Harbor Intl.)
 
  Select this departure  
 
Roundtrip: from  $278.99 + $31.81 taxes & fees = $310.80
6:20 pm Depart Denver (DEN)
Arrive Ontario (ONT) 9:26 pm 		Mon 19-Apr
Duration: 4hr 6mn
US Airways US Airways 480  / 639
Connect in Phoenix (Sky Harbor Intl.)
 
  Select this departure  
 
Roundtrip: from  $278.99 + $31.81 taxes & fees = $310.80
11:30 am Depart Denver (DEN)
Arrive Ontario (ONT) 3:11 pm 		Mon 19-Apr
Duration: 4hr 41mn
US Airways US Airways US Airways 6111 operated by UNITED6111  / 638
Connect in Phoenix (Sky Harbor Intl.)
 
  Select this departure  
 
Roundtrip: from  $278.99 + $31.81 taxes & fees = $310.80
8:00 am Depart Denver (DEN)
Arrive Ontario (ONT) 11:42 am 		Mon 19-Apr
Duration: 4hr 42mn
US Airways US Airways 472  / 1551
Connect in Phoenix (Sky Harbor Intl.)
 
  Select this departure  
 
Roundtrip: from  $289.99 + $31.81 taxes & fees = $321.80
1:55 pm Depart Denver (DEN)
Arrive Ontario (ONT) 5:59 pm 		Mon 19-Apr
Duration: 5hr 4mn
UNITED UNITED 733  / UNITED 6150 operated by /UNITED EXPRESS/SKYWEST AIRLINE6150
Connect in San Francisco (SFO)
 
  Select this departure  
 
Roundtrip: from  $303.00 + $31.80 taxes & fees = $334.80
1:55 pm Depart Denver (DEN)
Arrive Ontario (ONT) 5:59 pm 		Mon 19-Apr
Duration: 5hr 4mn
Continental Continental Continental 6599 operated by UNITED6599
UNITED UNITED UNITED 6150 operated by /UNITED EXPRESS/SKYWEST AIRLINE6150
Connect in San Francisco (SFO)
 
  Select this departure  
 
Roundtrip: from  $313.00 + $24.80 taxes & fees = $337.80
3:20 pm Depart Denver (DEN)
Arrive Ontario (ONT) 6:14 pm 		Mon 19-Apr
Duration: 3hr 54mn
US Airways US Airways 644
1 stop
 
  Select this departure  
 
Roundtrip: from  $313.00 + $42.40 taxes & fees = $355.40
12:56 pm Depart Denver (DEN)
Arrive Ontario (ONT) 3:48 pm 		Mon 19-Apr
Duration: 3hr 52mn
Delta Delta Delta 4771 operated by /SKYWEST DBA DELTA CONNECTION4771  / Delta 4749 operated by /SKYWEST DBA DELTA CONNECTION4749
Connect in Salt Lake City (SLC)
 
  Select this departure  
 
Roundtrip: from  $313.00 + $42.40 taxes & fees = $355.40
10:40 am Depart Denver (DEN)
Arrive Ontario (ONT) 3:48 pm 		Mon 19-Apr
Duration: 6hr 8mn
Delta Delta Delta 967 operated by /MESABA DBA DELTA CONNECTION967  / Delta 4749 operated by /SKYWEST DBA DELTA CONNECTION4749
Connect in Salt Lake City (SLC)
 
  Select this departure  
 
Roundtrip: from  $325.99 + $31.81 taxes & fees = $357.80
8:45 am Depart Denver (DEN)
Arrive Ontario (ONT) 12:03 pm 		Mon 19-Apr
Duration: 4hr 18mn
Delta Delta Delta 4647 operated by /SKYWEST DBA DELTA CONNECTION4647  / Delta 4745 operated by /SKYWEST DBA DELTA CONNECTION4745
Connect in Salt Lake City (SLC)
 
  Select this departure  
 
Roundtrip: from  $325.99 + $31.81 taxes & fees = $357.80
7:30 am Depart Denver (DEN)
Arrive Ontario (ONT) 12:03 pm 		Mon 19-Apr
Duration: 5hr 33mn
Delta Delta Delta 4645 operated by /SKYWEST DBA DELTA CONNECTION4645  / Delta 4745 operated by /SKYWEST DBA DELTA CONNECTION4745
Connect in Salt Lake City (SLC)
 
  Select this departure  
 
Roundtrip: from  $475.00 + $21.21 taxes & fees = $496.21
9:10 pm Depart Denver (DEN)
Arrive Ontario (ONT) 10:27 pm 		Mon 19-Apr
Duration: 2hr 17mn
US Airways US Airways US Airways 6171 operated by UNITED6171
Nonstop flight
 
  Select this departure  
 
Roundtrip: from  $475.00 + $21.21 taxes & fees = $496.21
11:45 am Depart Denver (DEN)
Arrive Ontario (ONT) 1:03 pm 		Mon 19-Apr
Duration: 2hr 18mn
US Airways US Airways US Airways 6168 operated by UNITED6168
Nonstop flight
 
  Select this departure  
 
Roundtrip: select to check price
5:10 pm Depart Denver (DEN)
Arrive Ontario (ONT) 10:45 pm 		Mon 19-Apr
Duration: 6hr 35mn
Alaska Airlines Alaska Airlines 673  / 536
Connect in Seattle (SEA)
 
  Select this departure  
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