United Airlines Denver to Ontario Flights

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Cheapflightsplus.com will find cheap United Airlines flights from Denver to Ontario. Compare airline ticket prices and book air tickets starting from $121 from trusted online travel agencies, web sites and directly from airlines. Check flights schedule of United Airlines, arrivals and departure details below.

Find Cheap Airfare Denver (CO) — Ontario (CA) by United Airlines

To find cheap tickets choose a day of your departure with attractive price on the graph below and click «Find flights». For round trip flights please click «Check prices for return flight». The cheapest airfare is in january: one-way - $121, two-way – $208.

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Cheap Flights from Denver to Ontario by United Airlines

Look at the list of plane tickets for the most popular direct and connecting flights by United Airlines, their prices start from $121. The fastest nonstop flight takes 2h 27m. The fastest connecting flight — 5h 30m.

Price	Departure	Arrival	Flight Time	Airline	Flight
from $133 Find flight	7:28 pm Denver Denver International	8:55 pm Ontario Ontario Int.	2h 27m	United Airlines	UA351
from $121 Find flight	11:33 am Denver Denver International	6:04 pm Ontario Ontario Int.	7h 31m layover 3h 12m - San Francisco	United Airlines	UA1561 UA251
from $121 Find flight	1:34 pm Denver Denver International	6:04 pm Ontario Ontario Int.	5h 30m layover 1h 10m - San Francisco	United Airlines	UA304 UA251
from $248 Find flight	1:30 pm Denver Denver International	8:40 pm Ontario Ontario Int.	8h 10m layover 3h 44m - San Francisco	United Airlines	UA1812 UA794
from $248 Find flight	3:50 pm Denver Denver International	8:40 pm Ontario Ontario Int.	5h 50m layover 1h 25m - San Francisco	United Airlines	UA1300 UA794
from $284 Find flight	10:15 am Denver Denver International	6:04 pm Ontario Ontario Int.	8h 49m layover 4h 31m - San Francisco	United Airlines	UA2041 UA251
from $284 Find flight	7:45 am Denver Denver International	6:04 pm Ontario Ontario Int.	11h 19m layover 6h 59m - San Francisco	United Airlines	UA2391 UA251
from $284 Find flight	9:05 am Denver Denver International	6:04 pm Ontario Ontario Int.	9h 59m layover 5h 39m - San Francisco	United Airlines	UA538 UA251
from $284 Find flight	6:00 am Denver Denver International	6:04 pm Ontario Ontario Int.	13h 4m layover 8h 45m - San Francisco	United Airlines	UA573 UA251
from $284 Find flight	1:34 pm Denver Denver International	9:58 am+1 день Ontario Ontario Int.	21h 24m layover 17h 0m - San Francisco	United Airlines	UA304 UA5740
from $284 Find flight	3:59 pm Denver Denver International	9:58 am+1 день Ontario Ontario Int.	18h 59m layover 14h 35m - San Francisco	United Airlines	UA1300 UA5740
from $304 Find flight	5:20 pm Denver Denver International	9:58 am+1 день Ontario Ontario Int.	17h 38m layover 13h 14m - San Francisco	United Airlines	UA1076 UA5740
from $283 Find flight	5:25 pm Denver Denver International	9:58 am+1 день Ontario Ontario Int.	17h 33m layover 11h 4m - Salt Lake City 0h 39m - San Francisco	United Airlines	UA331 UA5736 UA5740
from $283 Find flight	6:30 pm Denver Denver International	9:58 am+1 день Ontario Ontario Int.	16h 28m layover 9h 53m - Salt Lake City 0h 39m - San Francisco	United Airlines	UA5762 UA5736 UA5740
from $283 Find flight	7:40 pm Denver Denver International	9:58 am+1 день Ontario Ontario Int.	15h 18m layover 8h 49m - Salt Lake City 0h 39m - San Francisco	United Airlines	UA1226 UA5736 UA5740
from $289 Find flight	7:39 pm Denver Denver International	9:58 am+1 день Ontario Ontario Int.	15h 19m layover 8h 40m - Sacramento 1h 18m - San Francisco	United Airlines	UA2132 UA5460 UA5740

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*Departure and arrival times are local. Prices are for one-way flights. Information refreshed on 01/15/2025

United Airlines Flight Schedule Denver to Ontario

Below is a detailed 2025 flight schedule for today, tomorrow and all other days. It may vary depending on season and a day of the week of your desired trip. We recommend booking your itinerary at least 2 weeks prior your travel to get the best price and availability by the airline.

Departure	Flight Details	Flight Time	Price
7:28 pm — 8:55 pm	7:28 pm — 8:55 pm UA351 United Airlines Denver — Ontario	2h 27m	Find flight from$133
10:15 am — 6:04 pm	10:15 am — 12:04 pm UA2041 United Airlines Denver — San Francisco 4h 31m stop 4:35 pm — 6:04 pm UA251 United Airlines San Francisco — Ontario	8h 49m including layover	Find flight from$284
11:20 am — 6:05 pm	11:20 am — 1:17 pm UA1561 United Airlines Denver — San Francisco 3h 20m stop 4:37 pm — 6:05 pm UA1932 United Airlines San Francisco — Ontario	7h 45m including layover	Find flight from$248
11:33 am — 6:04 pm	11:33 am — 1:23 pm UA1561 United Airlines Denver — San Francisco 3h 12m stop 4:35 pm — 6:04 pm UA251 United Airlines San Francisco — Ontario	7h 31m including layover	Find flight from$121
12:45 pm — 9:57 pm	12:45 pm — 4:16 pm UA514 United Airlines Denver — Houston 3h 59m stop 8:15 pm — 9:57 pm UA1563 United Airlines Houston — Ontario	10h 12m including layover	Find flight from$582
1:30 pm — 8:40 pm	1:30 pm — 3:26 pm UA1812 United Airlines Denver — San Francisco 3h 44m stop 7:10 pm — 8:40 pm UA794 United Airlines San Francisco — Ontario	8h 10m including layover	Find flight from$248
1:34 pm — 6:04 pm	1:34 pm — 3:25 pm UA304 United Airlines Denver — San Francisco 1h 10m stop 4:35 pm — 6:04 pm UA251 United Airlines San Francisco — Ontario	5h 30m including layover	Find flight from$121
3:50 pm — 8:40 pm	3:50 pm — 5:45 pm UA1300 United Airlines Denver — San Francisco 1h 25m stop 7:10 pm — 8:40 pm UA794 United Airlines San Francisco — Ontario	5h 50m including layover	Find flight from$248
3:59 pm — 9:58 am +1 day	3:59 pm — 5:50 pm UA1300 United Airlines Denver — San Francisco 14h 35m stop 8:25 am — 9:58 am UA5740 United Airlines San Francisco — Ontario	18h 59m including layover	Find flight from$284
5:20 pm — 9:58 am +1 day	5:20 pm — 7:11 pm UA1076 United Airlines Denver — San Francisco 13h 14m stop 8:25 am — 9:58 am UA5740 United Airlines San Francisco — Ontario	17h 38m including layover	Find flight from$304
6:00 am — 6:04 pm	6:00 am — 7:50 am UA573 United Airlines Denver — San Francisco 8h 45m stop 4:35 pm — 6:04 pm UA251 United Airlines San Francisco — Ontario	13h 4m including layover	Find flight from$284
9:05 am — 6:04 pm	9:05 am — 10:56 am UA538 United Airlines Denver — San Francisco 5h 39m stop 4:35 pm — 6:04 pm UA251 United Airlines San Francisco — Ontario	9h 59m including layover	Find flight from$284
10:05 am — 9:57 pm	10:05 am — 1:21 pm UA1131 United Airlines Denver — San Antonio 4h 27m stop 5:48 pm — 6:55 pm UA465 United Airlines San Antonio — Houston 1h 20m stop 8:15 pm — 9:57 pm UA1563 United Airlines Houston — Ontario	12h 52m including layover	Find flight from$313
4:00 pm — 9:58 am +1 day	4:00 pm — 5:42 pm UA1208 United Airlines Denver — Sacramento 12h 18m stop 6:00 am — 7:07 am UA5460 United Airlines Sacramento — San Francisco 1h 18m stop 8:25 am — 9:58 am UA5740 United Airlines San Francisco — Ontario	18h 58m including layover	Find flight from$289
5:25 pm — 9:58 am +1 day	5:25 pm — 7:01 pm UA331 United Airlines Denver — Salt Lake City 11h 4m stop 6:05 am — 7:46 am UA5736 United Airlines Salt Lake City — San Francisco 39m stop 8:25 am — 9:58 am UA5740 United Airlines San Francisco — Ontario	17h 33m including layover	Find flight from$283
6:30 pm — 9:58 am +1 day	6:30 pm — 8:12 pm UA5762 United Airlines Denver — Salt Lake City 9h 53m stop 6:05 am — 7:46 am UA5736 United Airlines Salt Lake City — San Francisco 39m stop 8:25 am — 9:58 am UA5740 United Airlines San Francisco — Ontario	16h 28m including layover	Find flight from$283
7:40 pm — 9:58 am +1 day	7:40 pm — 9:16 pm UA1226 United Airlines Denver — Salt Lake City 8h 49m stop 6:05 am — 7:46 am UA5736 United Airlines Salt Lake City — San Francisco 39m stop 8:25 am — 9:58 am UA5740 United Airlines San Francisco — Ontario	15h 18m including layover	Find flight from$283
8:50 pm — 9:58 am +1 day	8:50 pm — 10:30 pm UA5665 United Airlines Denver — Salt Lake City 7h 35m stop 6:05 am — 7:46 am UA5736 United Airlines Salt Lake City — San Francisco 39m stop 8:25 am — 9:58 am UA5740 United Airlines San Francisco — Ontario	14h 8m including layover	Find flight from$303
9:41 am — 9:57 pm	9:41 am — 12:46 pm UA1350 United Airlines Denver — Dallas 5h 4m stop 5:50 pm — 7:06 pm UA1609 United Airlines Dallas — Houston 1h 9m stop 8:15 pm — 9:57 pm UA1563 United Airlines Houston — Ontario	13h 16m including layover	Find flight from$295

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

*Departure and arrival times are local. Last updated on 01/15/2025

Flight Information

There is 1 flight by United Airlines from Denver to Ontario every week with departures from Denver International and Arapahoe Co. All flights arrive at Ontario Int. and International Heliport.

Departures start from 10:05 am to 9:41 am. Nonstop flight is 2h 27m. The time difference between Denver and Ontario is 1h.

The fastest flight 2h 27m
Average flight time 2h 27m
The earliest flight 10:05 am
The latest flight 9:41 am
Distance 818 ml

The cheapest months for traveling to Ontario are january (from 121 $), february (from 133 $).

The cheapest flight by United Airlines that our users were able to find is $121. This airfare is economy class on one-way UA1561 flight for January 22, 2025 leaving Denver International in Denver at 11:33 am, it includes all taxes and additional fees.

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United Airlines Airplanes on the Route

List of the most popular United Airlines airplanes flying from Denver to Ontario:

Other Popular Airlines on the Route

Besides United Airlines there are other 4 airline carriers between Denver and Ontario. Please review schedules and prices from the most popular airlines to find the best airfare deals from Denver to Ontario.

Nonstop flights

There are 3 direct flights every day from Denver. Airlines and fares are below:

F9 - Frontier Airlines

from $43

Find

See more direct flights

Connecting Flights

List of flights with layovers (1 and more stops):

AS - Alaska Airlines

from $159

Find
F9 - Frontier Airlines

from $48

Find
Y4 - Volaris

from $360

Find
AM - Aeromexico

from $363

Find

See more connecting flights

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