Cheap flights from Ontario to Denver

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Travelers usually depart from Ontario International, Montclair (Ontario), Ontario Bus Stop, or Ontario, CA station when they travel from Ontario to Denver. Book your trip to arrive at Denver International, Denver Union Station, Denver Greyhound station, Denver, CO - Federal Center Station, or Denver, CO - Colorado Park & Ride. The distance between Ontario and Denver is 1317 km. The most popular airlines for this route are Southwest Airline, American Airlines, Frontier Airlines, United Airlines, and Delta Air Lines. Ontario and Denver have 200 direct flights per week.

Weekly flights

MondaysTuesdaysWednesdaysThursdaysFridaysSaturdaysSundays
Number of flights37443926-2925

Fly direct with

Frontier Airlines on Mondays, Thursdays, Fridays, and Sundays.

Southwest Airline on Mondays, Tuesdays, Wednesdays, Thursdays, Fridays, Saturdays, and Sundays.

United Airlines on Mondays, Tuesdays, Wednesdays, Thursdays, Fridays, Saturdays, and Sundays.

Check-in for a flight from Ontario to Denver

NameCarrier codeIATA CodePassport needed during bookingAirport check-in closesOnline check-in available
Southwest AirlineSWAWNNoUnknownNo
American AirlinesAALAAYesUnknownNo
Frontier AirlinesFFTF9NoUnknownNo
United AirlinesUALUAYesUnknownNo
Delta Air LinesDALDLYesUnknownNo

Frequently asked questions

How long does it take to travel from Ontario to Denver?

A one-way nonstop (direct) flight between Ontario and Denver takes around 2.2 hours.

What is the flight distance between Ontario and Denver?

The flight distance between Ontario and Denver is 1317 km.

What airlines offer nonstop (direct) flights between Ontario and Denver?

Several carriers operate flights between Ontario and Denver. Airlines offering nonstop (direct) flights include Southwest Airline, United Airlines, Frontier Airlines.

What are the most popular routes to and from Ontario?

Travelers frequently search for route combinations, such as Ontario and McCarran International, Denver International, Tampa International, Phoenix Sky Harbor International, Sacramento International, Reno–Tahoe International, Kansas City International, St. Louis Lambert International, San Jose International, McGhee Tyson, Oakland International.

What are the most popular routes to and from Denver?

Travelers frequently search for route combinations, such as Denver and Los Angeles International, McCarran International, Phoenix Sky Harbor International, George Bush Intercontinental, O Hare International, Southwest Florida International, Louis Armstrong New Orleans International, Philadelphia International, Charlotte Douglas International, Portland International, San Antonio International.

What airports are near Ontario?

The main airport in Ontario is Ontario International. It is also served by Los Angeles International, San Diego International, Tijuana International, John Wayne, Ontario International, Hollywood Burbank, Palm Springs International, Long Beach, Imperial County, Meadows Field.

What airports are near Denver?

The main airport in Denver is Rocky Mountain Metropolitan Airport. It is also served by Colorado Springs, Eagle County Regional, Cheyenne Regional, Laramie Regional, Pueblo Memorial.

What buses and trains depart from Ontario?

A number of bus and train companies depart from Ontario, including Megabus bus, Flixbus, Amtrak train.

Planning a trip? Thanks to our Virtual Interlining algorithm, we offer billions of route combinations between any A and any B in the world by plane, train, and bus. Find the cheapest routes and best deals for you, as well as the best dates on which to travel.

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