$122 Cheap Flights from Ontario Intl. Airport (ONT) to Colorado Springs (COS)

You can find cheap one-way flights from $122 and cheap return flights $243 Ontario, CA (ONT-Los Angeles - Ontario Intl.) to Colorado Springs, CO (COS) with Expedia. One-way flights typically cost between $161 and $567, and return flights often range between $315 and $852. Flight prices vary based on the month and day of the week you want to travel, as well as the airline and how far in advance you book your ticket. Filter your search on Expedia by "Price (lowest to highest)" to see the cheapest fares first, and use the Price Tracking tool to receive alerts when Ontario, CA (ONT-Los Angeles - Ontario Intl.) to Colorado Springs, CO (COS) ticket fares go up or down.

*Typical price ranges based on flights available on Expedia in the last year. Prices include multi-airline options.

September is the cheapest month to fly from Ontario, CA (ONT) to Colorado Springs, CO (COS), with average return fares around $289. This is about 22% lower than the average price throughout the year, as September typically experiences lower travel demand after the summer. Other cheap months to fly from Ontario to Colorado Springs include January and August.

*Averages based on flights available on Expedia in the last year.

Enter ONT to COS and your travel dates, then apply the 'Nonstop' filter to see only direct flights.

Southwest Airlines is one of the cheapest airlines offering connecting flights from Los Angeles - Ontario Intl. (ONT) to Colorado Springs (COS), with return tickets starting from around $204 with a layover in Harry Reid Intl. (LAS). Use Expedia's search tool to compare the prices and schedules of airlines that fly this route to find the best option for your plans and budget.

*Prices based on flights available on Expedia in the last year.

To find a cheap flight from Ontario, CA (ONT-Los Angeles - Ontario Intl.) to Colorado Springs, CO (COS), be flexible with your dates. Traveling outside of peak vacation months and booking a mid-week flight can help you save. Early morning and late night flights are often more affordable, too. Expedia allows you to compare flight times, airlines and routes all in one place to find low fares. You can also set up Price Tracking and receive alerts when fares go up or down.

For flights from Ontario, CA (ONT) to Colorado Springs, CO (COS), the ideal months to travel are September and August. September offers the best average price at around $289 for a return flight, while August is popular for its pleasant weather and vibrant atmosphere. These months provide a great combination of affordability and enjoyable travel experiences.

*Prices based on flights available on Expedia in the last year.

Sort flights by "Departure (earliest)" on Expedia to find the earliest flight from ONT to COS. To compare more early flights, use the "Early Morning" and "Morning" filters in your search.

For flights from Los Angeles - Ontario Intl. (ONT) to Colorado Springs (COS), the most popular departure times are in the early afternoon, from 12pm to 3pm. This accounts for around 25% of total traffic. Airlines such as Southwest Airlines, United Airlines, and American Airlines offer flights during this window. Many travelers prefer this time as it fits well with their schedules, allowing for a leisurely morning.

Flying from ONT to COS with a connection usually takes about 6 hours 20 minutes, traveling roughly 787 miles. Keep in mind that actual flight times can vary due to wind patterns, weather, and air traffic.

First class seats are offered on the ONT to COS route. First class cabins are available on:

• American Airlines
• Delta Air Lines
• United Airlines

It's easy to earn miles on a Ontario, CA (ONT-Los Angeles - Ontario Intl.) to Colorado Springs, CO (COS) flight when you book with Expedia. Before you confirm your booking, simply select your frequent flyer program and enter your program number. As a member of One Key™, you can also earn OneKeyCash™* on top of your airline miles when you book with Expedia.

*Excludes taxes and fees. OneKeyCash is not redeemable for cash and can only be used on Expedia and other participating brands.

Typically, booking a last minute flight from Ontario, CA (ONT-Los Angeles - Ontario Intl.) to Colorado Springs, CO (COS) will be more expensive than booking in advance. As the departure date approaches, there are usually fewer seats available which can drive up the cost. However, if there's some wiggle room with your travel dates and times, you could bag a cheap last-minute fare.

Securing a Ontario, CA (ONT-Los Angeles - Ontario Intl.) to Colorado Springs, CO (COS) Colorado Springs Vacation Packages is usually cheaper than booking separately. With Expedia, you can enjoy the ease of organizing your travels all in one place. Select from our extensive range of stays and then add flights, activities and car rentals to your booking. Bundle everything together, and you could save hundreds of dollars.

If you booked your Ontario, CA (ONT-Los Angeles - Ontario Intl.) to Colorado Springs, CO (COS) flight within the last 24 hours, you may be able to modify or cancel it without any fees. Depending on the airline and the type of ticket you have, additional charges may apply for changes beyond this timeframe. Airline policies and contact information can be found in your itinerary or confirmation email. Or, head to our Customer Service portal if you'd like more information.