• Find cheap flights
  • Booking tips
idealo Preisfinderidealo Preisfinder - Finde den niedrigsten Flugpreis nach Abflugdatum
LANG_widget_price_headline_widget
LANG_widget_price_interface_add_inbound
LANG_widget_price_interface_add_inbound_label
LANG_widget_price_interface_add_inbound_label
LANG_widget_price_interface_add_inbound
LANG_widget_price_outbound_only
LANG_widget_price_price_per_person
LANG_widget_price_check_availablility
Outbound flight: 08/25/21
13:45 DEN
15:04 ONT
Denver International Airport, CO
Ontario-CA
direct
United Airlines
Return flight: 09/08/21
16:53 ONT
20:18 DEN
Ontario-CA
Denver International Airport, CO
direct
Spirit Airlines
$125
Check
Outbound flight: 08/25/21
14:41 DEN
19:48 ONT
Denver International Airport, CO
Ontario-CA
1 Stopover
American Airlines
Return flight: 09/08/21
16:53 ONT
20:18 DEN
Ontario-CA
Denver International Airport, CO
direct
Spirit Airlines
$130
Check
Outbound flight: 09/14/21
06:00 DEN
08:35 ONT
Denver International Airport, CO
Ontario-CA
1 Stopover
American Airlines
Return flight: 09/28/21
16:40 ONT
23:54 DEN
Ontario-CA
Denver International Airport, CO
1 Stopover
American Airlines
$155
Check
Outbound flight: 08/25/21
08:42 DEN
13:40 ONT
Denver International Airport, CO
Ontario-CA
1 Stopover
American Airlines
Return flight: 09/08/21
11:15 ONT
17:19 DEN
Ontario-CA
Denver International Airport, CO
1 Stopover
Spirit Airlines
$164
Check
Outbound flight: 09/14/21
06:00 DEN
09:36 ONT
Denver International Airport, CO
Ontario-CA
1 Stopover
Delta Air Lines
Return flight: 09/28/21
10:00 ONT
16:34 DEN
Ontario-CA
Denver International Airport, CO
1 Stopover
Delta Air Lines
$193
Check
Outbound flight: 09/14/21
06:00 DEN
08:35 ONT
Denver International Airport, CO
Ontario-CA
1 Stopover
American Airlines
Return flight: 09/28/21
16:53 ONT
20:18 DEN
Ontario-CA
Denver International Airport, CO
direct
Spirit Airlines
$193
Check
Outbound flight: 09/14/21
06:00 DEN
09:36 ONT
Denver International Airport, CO
Ontario-CA
1 Stopover
Delta Air Lines
Return flight: 09/28/21
20:15 ONT
23:39 DEN
Ontario-CA
Denver International Airport, CO
direct
Delta Air Lines
$198
Check
Outbound flight: 11/25/21
19:02 DEN
20:17 ONT
Denver International Airport, CO
Ontario-CA
direct
United Airlines
Return flight: 12/09/21
11:45 ONT
15:21 DEN
Ontario-CA
Denver International Airport, CO
direct
Frontier Airlines
$223
Check
Outbound flight: 09/11/21
11:15 DEN
12:33 ONT
Denver International Airport, CO
Ontario-CA
direct
United Airlines
Return flight: 09/25/21
00:49 ONT
04:18 DEN
Ontario-CA
Denver International Airport, CO
direct
Frontier Airlines
$254
Check
Outbound flight: 09/11/21
10:48 DEN
18:08 ONT
Denver International Airport, CO
Ontario-CA
1 Stopover
American Airlines
Return flight: 09/25/21
11:45 ONT
15:21 DEN
Ontario-CA
Denver International Airport, CO
direct
Frontier Airlines
$259
Check
Prices based on recent searches, subject to last-minute changes
Page 1 / 12

Tips and tricks to help you find cheap flights from Denver to Ontario

Favorite airline: United Airlines
100 % of flights booked on the route from Denver to Ontario are booked with United Airlines and Alaska Airlines.
United Airlines
60 %
Alaska Airlines
40 %
Direct flights are the cheapest connection
Compared to direct flights, flights with a stopover on this route are on average 7 % more expensive.
non stop flight
1 stop
02h 21min
08h 25min
$351
$379
The favorite connection is non-stop
Non-stop flights are especially popular on this route. 60 % of travelers will book a direct flight.
Route
bookings
Direct flights
02h 21min, from $351
60 %
1 stopover Seattle-Tacoma International Airport, WA
08h 25min, from $379
40 %
Flight information Denver - Ontario
Alternative flight routes
Cheap direct flights
Flight details Denver - Ontario
  • Flight duration: min. 02:19 / max. 05:20
  • Distance: 1317 km
  • Flights per week: 28
  • Return flight duration: min. 02:09 / max. 06:20
Top Flight Routes
privacy | terms and conditions / about
* Prices may vary, please check the travel details given by the online travel agency before booking. Prices include taxes.