ONT - COS

$119 Find Cheap Flights from Ontario to Colorado Springs

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Ontario to Colorado Springs departing on 7/2. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
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KAYAK searches hundreds of travel sites at once for deals on flights to Colorado Springs

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Ontario to Colorado Springs, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Ontario to Colorado Springs, as well as popular online travel agencies
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Cheap Flights from Ontario to Colorado Springs

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Ontario to Colorado Springs that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.

Recent round-trip flight deals from Ontario to Colorado Springs

KAYAK's recommended round-trip deals from the most popular airlines that fly from Ontario to Colorado Springs.
Discover the best prices for you by selecting your travel dates on KAYAK.
Southwest Logo
4:25 pm - 11:50 pmONT-COS
6h 25m1 stop
Southwest Logo
8:00 pm - 11:10 pmCOS-ONT
4h 10m1 stop
$244Southwest
Find Deal
Tue, Jul 1 - Sat, Jul 5
American Airlines Logo
2:44 pm - 11:45 pmONT-COS
8h 01m1 stop
American Airlines Logo
5:01 pm - 11:59 pmCOS-ONT
7h 58m1 stop
$267American Airlines
Find Deal
Wed, May 28 - Sat, Jun 7
Delta Logo
1:10 pm - 6:53 pmONT-COS
4h 43m1 stop
Delta Logo
8:15 am - 12:17 pmCOS-ONT
5h 02m1 stop
$271Delta
Find Deal
Tue, Jun 3 - Tue, Jun 10
American Airlines Logo
2:44 pm - 11:45 pmONT-COS
8h 01m1 stop
American Airlines Logo
5:00 am - 12:00 pmCOS-ONT
8h 00m2 stops
$272American Airlines
Find Deal
Wed, May 28 - Sat, Jun 7
Southwest Logo
12:20 pm - 5:00 pmONT-COS
3h 40m1 stop
Southwest Logo
2:35 pm - 8:45 pmCOS-ONT
7h 10m2 stops
$276Southwest
Find Deal
Wed, Aug 13 - Wed, Aug 20
American Airlines Logo
1:14 pm - 11:45 pmONT-COS
9h 31m2 stops
American Airlines Logo
5:00 am - 12:00 pmCOS-ONT
8h 00m2 stops
$277American Airlines
Find Deal
Wed, May 28 - Sat, Jun 7
American Airlines Logo
6:17 am - 6:20 pmONT-COS
11h 03m2 stops
American Airlines Logo
6:02 am - 5:52 pmCOS-ONT
12h 50m2 stops
$281American Airlines
Find Deal
Wed, Aug 13 - Wed, Aug 20
Delta Logo
1:10 pm - 6:53 pmONT-COS
4h 43m1 stop
Delta Logo
8:15 am - 12:17 pmCOS-ONT
5h 02m1 stop
$284Delta
Find Deal
Tue, Jun 3 - Sun, Jun 8
United Airlines Logo
4:15 pm - 11:51 pmONT-COS
6h 36m1 stop
United Airlines Logo
5:15 pm - 8:53 pmCOS-ONT
4h 38m1 stop
$317United Airlines
Find Deal
Thu, May 15 - Mon, May 19
United Airlines Logo
6:32 pm - 11:59 pmONT-COS
4h 27m1 stop
United Airlines Logo
5:20 pm - 9:04 pmCOS-ONT
4h 44m1 stop
$324United Airlines
Find Deal
Fri, May 30 - Tue, Jun 3
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KAYAK's insights & trends for Ontario to Colorado Springs flights

Get data-powered insights and trends into flights from Ontario to Colorado Springs to help you find the cheapest flights, the best time to fly and much more.

What’s the cheapest day of the week to fly from Ontario to Colorado Springs?

The average price of all round-trip flights from Ontario to Colorado Springs clicked on KAYAK for each day over the last 12 months.

If you are looking for a flight deal from Ontario to Colorado Springs, look for departures on Wednesdays and avoid leaving on a Sunday, as it's usually the priciest day. When flying back from Colorado Springs, Saturday is the cheapest day to fly and Thursday is the most expensive.

What is the cheapest month to fly from Ontario to Colorado Springs?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Ontario to Colorado Springs, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from Ontario to Colorado Springs is August, where tickets cost $350 (return) on average. On the other hand, the most expensive months are June and November, where the average cost of round-trip tickets is $435 and $422 respectively.

How far in advance should I book a flight from Ontario to Colorado Springs?

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights from Ontario to Colorado Springs, removes the top 0.1% to account for outliers, and then takes the average of all the values for each week.

To get a below average price on the flight from Ontario to Colorado Springs, you should book around 4 weeks before departure. For the absolute cheapest price, our data suggests you should book 12 weeks before departure.

Good to know

Low seasonJanuary
High seasonAugust
Cheapest flight$119
Best time to beat the crowds but there is an average 3% increase in price.
Most popular time to fly and prices are also 12% lower on average.
Flight from Ontario to Colorado Springs

When to book flights from Ontario to Colorado Springs

Are your dates flexible? Find out the best times to travel from Ontario to Colorado Springs based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking flights from Ontario to Colorado Springs

  • What is the cheapest flight from Ontario to Colorado Springs?

    In the last 3 days, the lowest price for a flight from Ontario to Colorado Springs was $119 for a one-way ticket and $244 for a round-trip.

  • Do I need a passport to fly between Ontario and Colorado Springs?

    No, a passport isn't needed to fly from Ontario to Colorado Springs. However, local authorities might ask for an official ID.

  • Which aircraft models fly most regularly from Ontario to Colorado Springs?

    We unfortunately don’t have that data for this specific route.

  • Which airline alliances offer flights from Ontario to Colorado Springs?

    oneworld, SkyTeam, and Star Alliance are the airline alliances operating flights between Ontario and Colorado Springs, with SkyTeam being the most commonly used for this route.

  • Which is the best airline for flights from Ontario to Colorado Springs, Southwest or United Airlines?

    The two airlines most popular with KAYAK users for flights from Ontario to Colorado Springs are Southwest and United Airlines. With an average price for the route of $368 and an overall rating of 8.0, Southwest is the most popular choice. United Airlines is also a great choice for the route, with an average price of $418 and an overall rating of 7.4.

  • How does KAYAK find such low prices on flights from Ontario to Colorado Springs?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Ontario to Colorado Springs.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Ontario to Colorado Springs?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Colorado Springs from Ontario is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Ontario to Colorado Springs?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Colorado Springs with an airline and back to Ontario with another airline. Booking your flights between Ontario and COS can sometimes prove cheaper using this method.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Ontario to Colorado Springs?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Colorado Springs from Ontario up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Top 3 airlines serving from Ontario to Colorado Springs

 
See real verified KAYAK customer reviews for airlines flying from Ontario to Colorado Springs. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Ontario to Colorado Springs? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
8.0
SouthwestOverall score based on 4294 reviews
7.6Entertainment
8.6Crew
8.2Boarding
8.0Comfort
7.1Food
Airline reviews

After a 3 hour layover in Denver my flight was delayed over 5 hours! No explanation; no assistance; no offer to provide compensation; no one at Southwest was willing to offer any assistance. 8 hours in the Denver airport - ridiculous!

2.0 MediocreAnonymous, Apr 2025MSY - DEN
Read more Southwest reviews

After a 3 hour layover in Denver my flight was delayed over 5 hours! No explanation; no assistance; no offer to provide compensation; no one at Southwest was willing to offer any assistance. 8 hours in the Denver airport - ridiculous!

It was a perfect flight in all aspects! Both legs!

Great flight, 47 passengers on a 180 seat plane. Stewardess was pleasant and cheerful.

I liked the crew member who gave flight instructions on "in case of a problem:. The seats are so small that only a young teenager could sit in middle seat.

WiFi on the flight was not working. Thus, entertainment options were limited.

Great flight staff. Ease of boarding. Overall, very uneventful and easy trip.

I really like open seating. I hate that I've heard this is going away. This is one of the unique things that makes Southwest my goto choice.

Employees were kind and funny, as always! Flight was late but no announcements were made for people with tight connections to help them transition quickly. No service due to turbulence.

I recently flew Southwest from San Jose to Honolulu. I was very impressed with the flight crew, especially the flight attendant in charge of the front of the plane. She came through the aisle at least five times for drinks and water, and two times for snacks. I have not seen such service since I flew first class. Also, for the first time, they gave us the correct baggage claim number, and the luggage came out quickly. I can't wait for Southwest to have assigned seating! I absolutely hate the Cattle Call boarding procedure and the mad dash to get seats and overhead bins. However, the boarding was efficient.

For the first time in a long time we had a flawless experience with Southwest. Both flights were early and no mechanical errors at all. We were shocked and pleasantly surprised 😮.

The gate attendant let me walk right by her with a bag too big for the overhead compartment

Food choices were very limited. Taste of the dishes was average.

I liked all the informational texts. I always knew where to go and when .

Received an email the night before showing that there would be seatback entertainment on our flight. We get on and there was no seatback entertainment. And then it was a scramble to try to set up the iPads for the kids before takeoff so they could watch something for the four hour flight.

The reason I don’t fly United. No in seat entertainment for a long flight and inconsistent WiFi and entertainment available from my device.

It was a good flight. Nothing comes to mind about how it could have been better. It was a newer plane, seemed like a great upgrade from your older ones. Staff was very good as well.

The food for long haul was poor compared to Singapore airlines economy. Pasta plain with tomato sauce . Singapore airlines give me Hagen dash small ice cream cup it was great. The choices of dinner course Singapore air also much better The crew mostly friendly. The economy seat are as expected.

The plane was clean. The staff was excellent. The flight attendants were very good. Enjoyable flight. Overall. The seats in the back are too small but, will always be.

Flight was 3 1/2 hour delayed with no credit or meal vouchers

late departure due to some unspecified issue with ventilating the cabin. They got it running but it was FREEZING for the whole flight. I asked for a blanket but they didn't provide one. They could not turn up the heat. it was quite miserable.

Very helpful ground crew after an earlier flight delay and being rebooked on a different flight.

Terrible. The flight was delayed two hours due to weather. Then when we got on the plane, the first pilot ended up timing out and we had to wait for a second pilot. Second pile came on board and we tax it out. Had to return back to the gate because of an unruly passenger. Then the copilot timed out. Had to wait for new copilot. Also had to wait for maintenance to check for fuel. Then found out the second pilot timed out and we had to wait for a third pilot. Was ready to go and then needed maintenance again for another issue. In the end, it was 2 o’clock in the morning when they announced that the flight couldn’t go because the third pilot and the second copilot had timed out.

The plane was late and then sat on the runway for almost 45 minutes before taking off.

We kept being told that the flight was full and that all overhead compartments were full and therefore had to check in our hand luggage. We were some of the last people to board and noticed that there was still sufficient space in the overhead compartments. We were obliged to check in hand luggage when there was space and so had to wait at luggage retrieval which took a while to then noticed damage to our luggage - not a great experience!

This was an overnight flight. There was no meal service in first class, just a simple snack basket was offered along with beverages. There should have been some type of continental breakfast prior to arrival in PHL. As an Executive Platinum American Airlines Advantage member, I received no name recognition from the first class flight attendant. When disembarking at PHL, the flight attendants were more interested in their cell phones than saying "thank you" to the passengers as they disembarked.

The flight was quick and to the point. The crew just did their job w/o excessive talking and everything was just perfect.

Awkward carry on process. Forced to check all carry on. No overhead space of worthiness. Left delayed, but made up the time. Crew was amicable.

One of the best flights I’ve had. So smooth.

Amazingly comfy flight - I had upgraded for a reasonable price and it was worth it. The food also was good.

Had to wait on pilot and crew to depart and had to wait to arrive at the gate because they only had 2 crews working. Delays, delays....Planes just keep getting smaller and tighter and they nickle and dime for everything. When will an airline actually wake up and make flying more enjoyable?

Everything you need to know for your flight from Ontario to Colorado Springs

Information on your arrival and departure airports

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