Journey information
Overview: Ontario, CA to Denver, CO flight
Flights from Ontario, CA to Denver, CO depart on average 102 times per day, taking around 6h 41m. Cheap flight tickets for this journey start at $142 (€115) but you can travel from only $126 (€102) by bus.
There are 20 flights per day. The earliest flight runs at 00:04, the last at 23:55. The fastest flight covers the 800 miles (1289 km) distance in 2h 32m. November is the cheapest month to fly.
Distance 800 miles (1289 km) |
Average flight duration 6h 41m |
Cheapest ticket price $142 (€115) |
Flights per day 102 |
Direct flights 20 |
Fastest flight 2h 32m |
Cheapest month November |
First flight 00:04 |
Last flight 23:55 |
The cheapest and fastest flights from Ontario, CA to Denver, CO
Cheapest price
$157
Average price
$157
Fastest journey
2 h 32 m
Average duration
2 h 32 m
Flights per day
1
Distance
1289 km
The best way to find a cheap flight ticket from Ontario, CA to Denver, CO is to book your journey as far in advance as possible and to avoid traveling at rush hour.
The average ticket from Ontario, CA to Denver, CO will cost around $157 if you buy it on the day, but the cheapest tickets can be found for only $157.
Of the 1 flights that leave Ontario, CA for Denver, CO onMon, Mar 23, 1 travel direct so it’s quite easy to avoid journeys where you’ll have to change along the way.
On Mon, Mar 23 the direct flights cover the 1289 km distance in an average of 2 h 32 m but if you time it right, some flights will get you there in just 2 h 32 m .
On Mon, Mar 23 the longest flights will take 2 h 32 m and usually involve a change or two along the way, but you might be able to save a few pennies if you’re on a budget.


Travel Information
Compare bus, flight, and train for Ontario, CA to Denver, CO
Omio recommends booking the train as it is the most popular option from Ontario, CA to Denver, CO among Omio's users. If you are prioritising price take the flight with prices starting from $142. For those with little time consider booking a flight which can get you there in 6h 41m. The ticket price range depends on the travel mode: a flight costs an average of $142, and a train costs an average of $487.
Distance: 800 miles (1289 km)
Compare flight with
| Flight | Most popular Train | Bus |
|---|---|---|
$176 Average price Cheapest | $1766 Average price | $178 Average price |
9h 41m Average total duration Fastest 6h 41m Onboard + 3h 0m Additional time* | 80h 32m Average total duration 80h 2m Onboard + 30m Additional time* | 24h 38m Average total duration 24h 8m Onboard + 30m Additional time* |
Direct Options | Direct Options | Direct Options |
Live departures
Ontario, CA to Denver, CO flight times
The table below shows live departures for Ontario, CA to Denver, CO flights for tomorrow, Sunday, March 22. You can also manually refresh the results below to see updated flight journeys.
| Provider | Departs | Duration | Arrives | Transfers | Tickets |
|---|---|---|---|---|---|
![]() | 2:45 PM Ontario, CA | 2h32 | 5:17 PM Denver, CO | 0 transfersDirect | |
This is the last flight of the day. | |||||
Find all the dates and times for this journey
Compare prices and tickets Ontario, CA to Denver, CO by bus, flight, or train
Compare bus, flight, and train prices over the next three weeks. See the best deals at a glance, find the lowest fares, and choose the option that fits your budget.
Mar 23
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Mar 29
FAQs: Ontario, CA to Denver, CO Flight
Find answers to the most common questions about traveling from Ontario, CA to Denver, CO by flight. From journey times and ticket prices to direct connections, first and last departures, and even whether the route is scenic, our FAQs cover everything you need to plan your trip. Whether you’re looking for the fastest flight, the cheapest option, or tips for making the most of your visit at Denver, CO, this guide helps you travel smarter and with confidence.

- Denver Arts Festival, a vibrant celebration of local artists and their work featuring exhibitions, live music, and food
- Great American Beer Festival, the largest beer festival in the U.S. showcasing thousands of craft beers from across the country
- Denver Film Festival, an annual event highlighting independent films and filmmakers with screenings, panels, and special events.
- Memorial Day, the unofficial start of summer with vibrant outdoor activities and events
- Independence Day, spectacular fireworks and lively celebrations throughout the city
- Labor Day, pleasant weather perfect for enjoying Denver's parks and festivals.
popular airports
Popular airports from Ontario, CA to Denver, CO
- Free Wi-Fi available throughout the airport.
- Shops in terminals, including duty-free and local brands.
- Parking available near the terminal, approximately 0.30€ (IDR 5,000) per hour.
- Various options in terminals, including fast food and sit-down restaurants
- Available outside the terminal.
- Elevators, ramps
- Available throughout the airport.
- Hotels nearby, such as Ontario Airport Hotel & Conference Center.
- Available in terminal 4, approx. $15 per use.
- Several lounges available, including Aspire Lounge.
- Available throughout the airport.
- Car rental services available on-site, including major brands
- Bus line 61, Ontario Airport at terminal Way 2, 38 miles
- Free Wi-Fi available throughout the airport.
- Shops located in Jeppesen terminal and concourses, including Duty-Free and local brands.
- Parking available, approximately 4.7€ ($5) per hour, parkade adjacent to terminal.
- Various restaurants in Jeppesen terminal and concourses, including American and intertiol cuisine.
- Available outside the terminal.
- Elevators, ramps
- Available throughout the airport.
- Westin Hotel connected to the terminal.
- Showers available at the Westin Hotel, approximately $20.
- Multiple lounges available, including United Club and Delta Sky Club.
- Lost and Found located in Jeppesen terminal, Level 5.
- Car rental services available on airport property, shuttle service to rental car lots.
- A Line train, Denver Airport Station, 37 minutes to Union Station
More options for your journey from Ontario, CA to Denver, CO
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