Cheap Flights from Denver, CO to Ontario, CA from $35

One way Round trip

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On Cheapflightsplus.com you will find 39 direct and 190 connecting flights from Denver to Ontario. You can compare airfare deals from 7 airlines and multiple travel sites from $35, book and save on cheap plane tickets and last minute offers. Also check out DEN-ONT flight schedule to find best flight time, convenient departure and arrival airports.

Find One-Way and Round-Trip Denver to Ontario Flight Deals

To find the cheapest one way airline ticket select the date with the lowest price on the calendar below and click «Find Flights». To search for round-trip flight deals click on the link «Check prices for return flights» and select the date of the return flight. Cheapest flights in November: $35 (one-way), $60 (round-trip).

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Best Flights from Denver to Ontario Today

Take a look at the list of non stop flights and flights with layovers from Denver to Ontario with the lowest price of $35. The fastest direct flight takes 2h 15m and the fastest connecting – 3h 44m.

Price	Departure	Arrival	Flight Duration	Airline	Flight
from $44 Find flight	10:20 Denver Denver International	11:48 Ontario Ontario Int.	2h 28m	Frontier Airlines	F9371
from $44 Find flight	11:15 Denver Denver International	12:33 Ontario Ontario Int.	2h 18m	United Airlines	UA5593
from $44 Find flight	13:45 Denver Denver International	15:04 Ontario Ontario Int.	2h 19m	United Airlines	UA617
from $44 Find flight	19:02 Denver Denver International	20:17 Ontario Ontario Int.	2h 15m	United Airlines	UA1689
from $44 Find flight	19:45 Denver Denver International	21:09 Ontario Ontario Int.	2h 24m	United Airlines	UA683
from $46 Find flight	08:10 Denver Denver International	09:35 Ontario Ontario Int.	2h 25m	Southwest Airlines	WN2541
from $46 Find flight	08:20 Denver Denver International	09:45 Ontario Ontario Int.	2h 25m	Southwest Airlines	WN1824
from $46 Find flight	08:20 Denver Denver International	09:45 Ontario Ontario Int.	2h 25m	Southwest Airlines	WN1265
from $46 Find flight	08:20 Denver Denver International	09:45 Ontario Ontario Int.	2h 25m	Southwest Airlines	WN2167
from $46 Find flight	08:40 Denver Denver International	10:00 Ontario Ontario Int.	2h 20m	Southwest Airlines	WN832
from $35 Find flight	11:00 Denver Denver International	15:45 Ontario Ontario Int.	5h 45m layover 0h 48m - Dallas	American Airlines	AA1622 AA2381
from $35 Find flight	09:00 Denver Denver International	15:45 Ontario Ontario Int.	7h 45m layover 2h 45m - Dallas	American Airlines	AA2285 AA2381
from $35 Find flight	08:00 Denver Denver International	15:45 Ontario Ontario Int.	8h 45m layover 3h 41m - Dallas	American Airlines	AA1594 AA2381

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*Departure and arrival times - local. Prices indicated for one-way flights. Information updated on May 02, 2024

Flight Schedule Denver (Colorado) to Ontario (California)

Full flight schedule will help you in detecting at what time planes fly from Denver to Ontario. You can also specify the concrete flights and airlines on the route and how long the flight actually is. Use the calendar for today, tomorrow or other specific date as some flights are available only on certain days of the week.

Departure	Flight Details	Flight Duration	Price
08:00 — 09:25	08:00 — 09:25 WN3388 Southwest Airlines Denver — Ontario	2h 25m	Find flight from$77
08:05 — 09:30	08:05 — 09:30 WN2105 Southwest Airlines Denver — Ontario	2h 25m	Find flight from$113
08:10 — 09:35	08:10 — 09:35 WN2541 Southwest Airlines Denver — Ontario	2h 25m	Find flight from$46
08:20 — 09:45	08:20 — 09:45 WN1824 Southwest Airlines Denver — Ontario	2h 25m	Find flight from$46
08:20 — 09:45	08:20 — 09:45 WN1265 Southwest Airlines Denver — Ontario	2h 25m	Find flight from$46
08:20 — 09:45	08:20 — 09:45 WN2167 Southwest Airlines Denver — Ontario	2h 25m	Find flight from$46
08:35 — 09:53	08:35 — 09:53 F9375 Frontier Airlines Denver — Ontario	2h 18m	Find flight from$56
08:40 — 10:00	08:40 — 10:00 WN832 Southwest Airlines Denver — Ontario	2h 20m	Find flight from$46
08:45 — 10:05	08:45 — 10:05 WN1367 Southwest Airlines Denver — Ontario	2h 20m	Find flight from$63
09:05 — 10:20	09:05 — 10:20 WN1534 Southwest Airlines Denver — Ontario	2h 15m	Find flight from$46
10:20 — 11:48	10:20 — 11:48 F9371 Frontier Airlines Denver — Ontario	2h 28m	Find flight from$44
11:15 — 12:33	11:15 — 12:33 UA5593 United Airlines Denver — Ontario	2h 18m	Find flight from$44
11:45 — 13:05	11:45 — 13:05 WN3171 Southwest Airlines Denver — Ontario	2h 20m	Find flight from$98
11:55 — 13:15	11:55 — 13:15 WN1097 Southwest Airlines Denver — Ontario	2h 20m	Find flight from$46
12:25 — 13:40	12:25 — 13:40 WN194 Southwest Airlines Denver — Ontario	2h 15m	Find flight from$46
12:35 — 13:55	12:35 — 13:55 WN2263 Southwest Airlines Denver — Ontario	2h 20m	Find flight from$46
13:10 — 14:30	13:10 — 14:30 WN2962 Southwest Airlines Denver — Ontario	2h 20m	Find flight from$82
13:45 — 15:04	13:45 — 15:04 UA617 United Airlines Denver — Ontario	2h 19m	Find flight from$44
14:20 — 15:35	14:20 — 15:35 WN1368 Southwest Airlines Denver — Ontario	2h 15m	Find flight from$46
14:30 — 15:45	14:30 — 15:45 WN1745 Southwest Airlines Denver — Ontario	2h 15m	Find flight from$46
15:10 — 16:25	15:10 — 16:25 WN2567 Southwest Airlines Denver — Ontario	2h 15m	Find flight from$46
15:55 — 17:15	15:55 — 17:15 WN246 Southwest Airlines Denver — Ontario	2h 20m	Find flight from$46
17:45 — 19:10	17:45 — 19:10 WN917 Southwest Airlines Denver — Ontario	2h 25m	Find flight from$151
17:59 — 19:17	17:59 — 19:17 F9373 Frontier Airlines Denver — Ontario	2h 18m	Find flight from$56
18:40 — 20:00	18:40 — 20:00 WN1880 Southwest Airlines Denver — Ontario	2h 20m	Find flight from$46
18:55 — 20:20	18:55 — 20:20 WN912 Southwest Airlines Denver — Ontario	2h 25m	Find flight from$46
19:02 — 20:17	19:02 — 20:17 UA1689 United Airlines Denver — Ontario	2h 15m	Find flight from$44
19:30 — 20:50	19:30 — 20:50 WN3646 Southwest Airlines Denver — Ontario	2h 20m	Find flight from$46
19:45 — 21:09	19:45 — 21:09 UA683 United Airlines Denver — Ontario	2h 24m	Find flight from$44
19:50 — 21:05	19:50 — 21:05 WN2539 Southwest Airlines Denver — Ontario	2h 15m	Find flight from$46
21:15 — 22:30	21:15 — 22:30 WN478 Southwest Airlines Denver — Ontario	2h 15m	Find flight from$46
21:30 — 22:45	21:30 — 22:45 WN1653 Southwest Airlines Denver — Ontario	2h 15m	Find flight from$58
21:40 — 23:00	21:40 — 23:00 WN449 Southwest Airlines Denver — Ontario	2h 20m	Find flight from$46
21:55 — 23:15	21:55 — 23:15 WN2705 Southwest Airlines Denver — Ontario	2h 20m	Find flight from$46
22:20 — 23:45	22:20 — 23:45 WN732 Southwest Airlines Denver — Ontario	2h 25m	Find flight from$110
05:00 — 13:25	05:00 — 07:48 AA1067 American Airlines Denver — Dallas 4h 37m stop 12:25 — 13:25 AA1086 American Airlines Dallas — Ontario	9h 25m including layover	Find flight from$36
05:00 — 09:57	05:00 — 07:48 AA1067 American Airlines Denver — Dallas 1h 7m stop 08:55 — 09:57 AA1472 American Airlines Dallas — Ontario	5h 57m including layover	Find flight from$40
06:00 — 11:58	06:00 — 08:48 AA2612 American Airlines Denver — Dallas 1h 57m stop 10:45 — 11:58 AA2945 American Airlines Dallas — Ontario	6h 58m including layover	Find flight from$40
06:30 — 13:38	06:30 — 09:28 AA2612 American Airlines Denver — Dallas 3h 11m stop 12:39 — 13:38 AA1086 American Airlines Dallas — Ontario	8h 8m including layover	Find flight from$40
07:55 — 12:02	07:55 — 09:45 UA419 United Airlines Denver — San Francisco 50m stop 10:35 — 12:02 UA5371 United Airlines San Francisco — Ontario	5h 7m including layover	Find flight from$46
08:00 — 15:45	08:00 — 11:01 AA1594 American Airlines Denver — Dallas 3h 41m stop 14:42 — 15:45 AA2381 American Airlines Dallas — Ontario	8h 45m including layover	Find flight from$35
08:00 — 13:25	08:00 — 11:03 AA1594 American Airlines Denver — Dallas 1h 22m stop 12:25 — 13:25 AA1086 American Airlines Dallas — Ontario	6h 25m including layover	Find flight from$36
09:00 — 15:45	09:00 — 11:57 AA2285 American Airlines Denver — Dallas 2h 45m stop 14:42 — 15:45 AA2381 American Airlines Dallas — Ontario	7h 45m including layover	Find flight from$35
09:00 — 13:50	09:00 — 11:57 AA2285 American Airlines Denver — Dallas 48m stop 12:45 — 13:50 AA1086 American Airlines Dallas — Ontario	5h 50m including layover	Find flight from$36
11:00 — 15:45	11:00 — 13:54 AA1622 American Airlines Denver — Dallas 48m stop 14:42 — 15:45 AA2381 American Airlines Dallas — Ontario	5h 45m including layover	Find flight from$35
12:47 — 19:49	12:47 — 15:39 AA884 American Airlines Denver — Dallas 3h 9m stop 18:48 — 19:49 AA810 American Airlines Dallas — Ontario	8h 2m including layover	Find flight from$40
13:50 — 19:49	13:50 — 16:45 AA1996 American Airlines Denver — Dallas 2h 3m stop 18:48 — 19:49 AA810 American Airlines Dallas — Ontario	6h 59m including layover	Find flight from$40
14:40 — 19:48	14:40 — 17:28 AA2635 American Airlines Denver — Dallas 1h 17m stop 18:45 — 19:48 AA810 American Airlines Dallas — Ontario	6h 8m including layover	Find flight from$40
15:40 — 19:30	15:40 — 17:19 UA735 United Airlines Denver — San Francisco 53m stop 18:12 — 19:30 UA5930 United Airlines San Francisco — Ontario	4h 50m including layover	Find flight from$46

Departure	Arrival	Flight Details	Flight Time	Price
		stop stop	including layover	Find flight from$

*Departure and arrival times - local. Updated on May 2, 2024

Flight Information

Below we will explain in detail what the flights cost on the destination from Denver to Ontario depends on and how to choose the most interesting flight option for you.

Distance between Denver and Ontario is 1316 miles. Time difference between the cities is 1h. Airplanes depart 05:00 to 23:55 from 2 Denver airports and arrive 05:00 to 23:55 to 2 Ontario airports. Average flight time is 2h 20m.

The fastest flight 2h 15m
Average flight time 2h 20m
The earliest flight 05:00
The latest flight 23:55
Distance 818 ml

What is the lowest airfare Denver to Ontario?

The cheapest plane ticket found by our users is $35. This airfare is for economy class on one-way AA1594 flight by American Airlines for October 3, 2020 which leaves Denver International in Denver at 08:00 am and arrives at Ontario Ontario Int. at 15:45.

Economy class

$35

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Business class

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First class

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Popular Airlines on the Route

The flight Denver — Ontario is served by 7 regular airlines and 3 low-cost airlines. Most of the flights on this route are operated by American Airlines - 54 departures per week at the price of from $ 35 . And the most expensive tickets are offered by United Airlines airline - from $ 463.

Direct flights

There are 39 nonstop flights on the route. The fastest direct flight is UA1689 by United Airlines takes 2h 15m and the cheapest is AA1594 by American Airlines for $44.

F9 - Frontier Airlines

from $44

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UA - United Airlines

from $44

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WN - Southwest Airlines

from $46

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Connecting Flights

There are 190 flights with layovers on the route. The fastest connecting flight is DL1181 by Delta Air Lines Inc. takes 3h 44m and the cheapest is AA1594 by American Airlines for $35.

AA - American Airlines

from $35

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AS - Alaska Airlines

from $90

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F9 - Frontier Airlines

from $66

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DL - Delta Air Lines Inc.

from $57

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UA - United Airlines

from $46

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WN - Southwest Airlines

from $79

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NK - Spirit Airlines

from $62

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Airports

You can fly from Denver to Ontario from 2 airports (Denver International, Arapahoe Co).

Denver airports

Denver International-DEN

from $35
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Arapahoe Co-APA

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Ontario airports

Ontario Int.-ONT

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International Heliport-JIO

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Airplanes

There are flights to Ontario from Denver by 7 airlines that use 10 aircraft brands. They range from huge modern airplanes to small-sized.

Boeing 737-800

from $35

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Airbus A321

from $35

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Airbus A321-100/200

from $36

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Airbus A319

from $44

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Boeing 737-900

from $44

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Bombardier CRJ

from $44

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Boeing 777

from $46

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Boeing 757-300

from $46

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Airbus A320

from $46

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Boeing 737-900 (winglets)

from $91

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Top Domestic Destinations from Denver

You may also consider searching for discounted plane tickets to some other popular places from Denver within United States.

Denver — Chicago

from $66

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Denver — Phoenix

from $59

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Denver — Indianapolis

from $79

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Denver — Las Vegas

from $70

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Denver — Boston

from $68

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Denver — Tampa

from $57

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Denver — Omaha

from $64

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Denver — Houston

from $67

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Denver — Boise

from $77

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Denver — San Diego

from $78

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Top International Destinations from Denver

Our state-of-the art metasearch will definitely provide you with the best airfare on international flights. We’re proud to partner with many reliable travel suppliers located outside the US what gives us an opportunity to offer the most competitive prices on far destinations.

Denver — London

from $63

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Denver — Paris

from $75

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Denver — Vancouver

from $60

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Denver — Cancun

from $66

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Denver — Birmingham

from $71

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Denver — Zurich

from $64

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Denver — Puerto Vallarta

from $56

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Denver — Athens

from $54

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Denver — Manchester

from $79

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Denver — Frankfurt

from $70

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All flights from Denver | All flights to Ontario

How to book a plane ticket yourself?

Fill in the search parameters — cities of departure and destination, departure and return dates and click «Find flights»
Select the best flight that you like. Please, check the airports of departure and arrival. Select the best fare, but pay attention to the following flight details - airports of departure and arrival, flight duration and layovers. Please use filters and sort to find the best flight.
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Fill in all passenger and payment information — passport and contact information, please double check all passengers’ names and make a payment for your itinerary.
That's it — you will receive an email with your e-ticket usually within 10 minutes after your flight is confirmed. Please, print the e-ticket and have it with you at the airport. You would need to have only a passport and/or a required form of ID to travel. Please, check your Visa requirements if you travel outside of the United States or Canada.
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