Cheap flights Denver — Ontario (DEN — ONT)

Good to know - Cheap tickets Denver — Ontario

Minimal flight time 2h 13m
Flight distance 1289 km
Most popular airline UPS
Round-trip from $28

Airfare Denver – Ontario by month

Here you can find out in what months how much a ticket Denver – Ontario costs to buy cheap plane tickets.

Month One-way Round-trip
July 2026
June 2026
May 2026
April 2026
March 2026
February 2026
January 2026
December 2025
November 2025
October 2025
September 2025
August 2025

Remember that the optimal time for booking air tickets is 59 days before the departure date, this is the average time at which air tickets were sold at the lowest prices.

Schedule of direct flights Denver — Ontario

Departure Arrival Flight days Flight Airlines Flight time Airports
05:45 07:00 tue, wed, thu 5X9763 UPS 2h 15m Denver International Airport — Ontario International Airport Select dates
05:45 07:07 tue, thu 5X9763 UPS 2h 22m Denver International Airport — Ontario International Airport Select dates
07:00 08:13 tue, wed, thu 5X2805 UPS 2h 13m Denver International Airport — Ontario International Airport Select dates
07:00 08:20 wed, thu, fri 5X2805 UPS 2h 20m Denver International Airport — Ontario International Airport Select dates
08:20 09:50 mon WN1968 Southwest Airlines 2h 30m Denver International Airport — Ontario International Airport Select dates
08:30 09:55 mon, tue, wed, thu, fri WN3787 Southwest Airlines 2h 25m Denver International Airport — Ontario International Airport Select dates
08:40 10:05 sat, sun WN3787 Southwest Airlines 2h 25m Denver International Airport — Ontario International Airport Select dates
11:15 12:43 mon, tue, wed UA430 United Express 2h 28m Denver International Airport — Ontario International Airport Select dates
11:20 12:48 mon, wed, thu, fri, sat, sun UA430 United Express 2h 28m Denver International Airport — Ontario International Airport Select dates
11:20 12:49 tue UA430 United Express 2h 29m Denver International Airport — Ontario International Airport Select dates
All routes

Popular airlines flying Denver — Ontario

Flight Denver – Ontario is served by 9 airlines.  4 airlines operate direct flights.


Airlines with direct flights


Other airlines flying with transfers

Dynamics airfare Denver — Ontario by month for the last year

according to LowCost.Club for the last year

The airfare depends on the departure date. Our chart shows the low season prices on route Denver — Ontario

The graph shows that booking flights Denver — Ontario is best planned for June and flights Denver — Ontario — Denver in the month of June.

Flights Denver — Ontario

The selection of cheap flights Denver — Ontario

The price of the flight Denver — Ontario (United States) — Denver from $28 (round-trip).

The average price of the flight Denver — Ontario (United States) — Denver $125 (round-trip).

Low cost flights Denver — Ontario (DEN — ONT)

The distance between Denver and Ontario 801 miles (or 1289 kilometres).

The time difference between Denver and Ontario is 1 h.

Minimal flight time from Denver to Ontario 2h 13m.

Routes from nearby cities to Ontario

A flight from a neighbouring city can help you save money on plane tickets.

Aspen — Ontario

Vail — Ontario

Hayden — Ontario

Laramie — Ontario

The closest airports to Denver with a flight to Ontario are in Aspen.

Popular International routes from Denver

Denver — Moscow

Denver — Istanbul

Denver — Porto

Denver — Osaka

Denver — Oslo

Popular routes from Ontario

If you are going to fly from Ontario, then study the popular flights. The most popular flights from Ontario:

Popular domestic routes from Denver

Denver — Miami

Denver — Orlando

Denver — Honolulu

Denver — New York

Denver — Las Vegas

FAQ about Denver — Ontario

Yes, they do: 5X9763, 5X2805, WN1968, WN3787, UA430, WN1855, WN3459, WN1104, UA2028, WN981, 5X805, F91261

Yes, you can fly from Denver to Ontario. Denver has 3 airports (Centennial Airport, Buffalo Municipal Airport, Denver International Airport) for flights. UPS, Southwest Airlines, United Express, Frontier (Penny the Owl Livery) depart from Denver on mon, tue, wed, thu, fri, sat, sun. There are non-direct flights through Alaska Airlines, Alpine Air Express, Amazon Air, American Eagle, Delta Connection, FedEx, NetJets, SkyWest Airlines, Volaris.

A direct flight lasts an average of 2h 13m, during which time the aircraft covers a distance of 1289 km.

The price of flights Denver — Ontario starts from $28.

Planes fly Denver — Ontario 7 times a week on the following days: mon, tue, wed, thu, fri, sat, sun

In Denver — Centennial Airport, Buffalo Municipal Airport, Denver International Airport. In Ontario — Ontario International Airport, International Heliport.

The following flights fly between Denver and Ontario: 5X9763, 5X9763, 5X2805, 5X2805, WN1968, WN3787, WN3787, UA430, UA430, UA430, WN1968, WN1855, WN3459, WN1855, WN1104, UA2028, UA2028, WN981, WN981, WN981, WN981, 5X805, 5X805, F91261

High season is considered to be July and the cheapest month is June. Enter your preferred airports (or cities) and dates into the search form above to unlock the latest Denver — Ontario flight deals.

The following airlines have direct flights Denver — Ontario: UPS, Southwest Airlines, United Express, Frontier (Penny the Owl Livery).

All the following airlines flights Denver — Ontario: Alaska Airlines, Alpine Air Express, Amazon Air, American Eagle, Delta Connection, FedEx, Frontier (Penny the Owl Livery), NetJets, SkyWest Airlines, Southwest Airlines, United Express, UPS, Volaris.

Low price calendar