ONT - COS

$176 Find Cheap Flights from Ontario to Colorado Springs - Compare and Save

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 12/15. 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.
1 adult
1 adult, Economy, 0 bags

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Everything you should know

Cheapest round-trip
$351
Typical prices: $369-$572
Delta
Sat 8/29Sat 9/5
ONT - COS • 1 stop
Cheapest one-way
$176
Typical prices: $274-$358
Delta
Tue 12/15
ONT - COS • 1 stop
Top airlines
Cheapest • from $351 (round-trip)
Best reviews • 8.0 score
Airline reviews
Airline reviews
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Airline reviews
Airline reviews
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Nonstop flights
Not available
There are currently no direct flights between Ontario and Colorado Springs. You'll need at least 1 connection.
Insights
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Insights
Top layover airports
Cheapest • Avg $314 (round-trip)
Shortest trip • 4h 22m (one-way)
Insights
Insights
Insights
Insights
When to travel
Cheapest • 28% price drop
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
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We hope you love your trip to Colorado Springs!
Flight Deals
Booking Insights
Flight Deals

Cheap Flights from Ontario to Colorado Springs (ONT-COS)

 
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.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Ontario to Colorado Springs

Sat, Aug 29 - Sat, Sep 5
Delta Logo
5:05 pm - 10:28 pm
ONT
-
COS
4h 23m
1 stop
Delta Logo
6:16 pm - 10:23 pm
COS
-
ONT
5h 07m
1 stop
$351Delta
Sat, Sep 5 - Sat, Sep 12
Southwest Logo
3:15 pm - 8:10 pm
ONT
-
COS
3h 55m
1 stop
Southwest Logo
2:00 pm - 5:25 pm
COS
-
ONT
4h 25m
1 stop
$351Southwest
Sat, Sep 5 - Sat, Sep 12
Southwest Logo
5:40 am - 11:00 am
ONT
-
COS
4h 20m
1 stop
Southwest Logo
8:55 am - 4:00 pm
COS
-
ONT
8h 05m
1 stop
$351Southwest
Tue, Aug 25 - Tue, Sep 1
Southwest Logo
1:10 pm - 7:55 pm
ONT
-
COS
5h 45m
1 stop
Southwest Logo
10:05 am - 4:05 pm
COS
-
ONT
7h 00m
1 stop
$353Southwest
Sat, Oct 24 - Wed, Oct 28
Delta Logo
5:03 pm - 10:22 pm
ONT
-
COS
4h 19m
1 stop
Delta Logo
6:07 pm - 11:55 pm
COS
-
ONT
6h 48m
1 stop
$355Delta
Tue, Oct 20 - Wed, Oct 28
Delta Logo
5:03 pm - 10:22 pm
ONT
-
COS
4h 19m
1 stop
Delta Logo
6:07 pm - 11:55 pm
COS
-
ONT
6h 48m
1 stop
$355Delta
Sat, Sep 5 - Sat, Sep 12
United Airlines Logo
5:00 am - 1:17 pm
ONT
-
COS
7h 17m
1 stop
United Airlines Logo
10:27 am - 6:11 pm
COS
-
ONT
8h 44m
2 stops
$356United Airlines
Sat, Sep 5 - Sat, Sep 12
United Airlines Logo
1:56 pm - 9:56 pm
ONT
-
COS
7h 00m
2 stops
United Airlines Logo
6:00 am - 12:12 pm
COS
-
ONT
7h 12m
2 stops
$361United Airlines
Thu, Sep 24 - Tue, Sep 29
American Airlines Logo
1:04 pm - 10:55 pm
ONT
-
COS
8h 51m
2 stops
American Airlines Logo
8:07 am - 6:17 pm
COS
-
ONT
11h 10m
2 stops
$589American Airlines
Thu, Sep 24 - Tue, Sep 29
American Airlines Logo
1:04 pm - 10:55 pm
ONT
-
COS
8h 51m
2 stops
American Airlines Logo
8:07 am - 6:17 pm
COS
-
ONT
11h 10m
2 stops
$619American Airlines
Booking Insights

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.

How much is a round-trip flight from Ontario to Colorado Springs?

This analysis is based on the cheapest round-trip price found on KAYAK in the last 12 months by searching for a flight from Ontario to Colorado Springs departing in September.

Flight prices are below average for this route right now.

Flights to Colorado Springs from Ontario usually cost between $390 and $666 in September.
The lowest price found in the past 5 days was $351 on Southwest (Sep 5-Sep 12).

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 February, where tickets cost $304 (return) on average. On the other hand, the most expensive months are August and March, where the average cost of round-trip tickets is $581 and $487 respectively.

Good to know

Low season

January

Cheapest flight

$176
Best time to beat the crowds but there is an average 13% increase in price.
Most popular time to fly and prices are also 6% 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 5 days, the lowest price for a flight from Ontario to Colorado Springs was $176 for a one-way ticket and $351 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?

    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 Delta?

    The two airlines most popular with KAYAK users for flights from Ontario to Colorado Springs are Southwest and Delta. With an average price for the route of $424 and an overall rating of 8.0, Southwest is the most popular choice. Delta is also a great choice for the route, with an average price of $300 and an overall rating of 7.8.

  • 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.

Reviews of the 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 4227 reviews
8.1Boarding
7.0Food
8.0Comfort
7.5Entertainment
8.6Crew
Airline reviews

Friendly crew kept coming by to make sure all was ok, provide additional refreshments, etc.

10.0 ExcellentTamara, Jul 2026
MCO - DEN
Read more Southwest reviews

Friendly crew kept coming by to make sure all was ok, provide additional refreshments, etc.

Flight was constantly delayed with significant changes in time, it was supposed to get to Colorado Springs at 8:30 PM but it got there after midnight.

Flight was delayed, full flight and I had to change gates. Southwest flights are always late later in the day.

Sacrament staff are always polite and helpful. Airport is easy to maneuver and boarding is straightforward.

Southwest is typically delayed, and it gets wearisome. It is no longer a discount airline and you get way less than you pay for when it comes to comfort and Ce.

A bit expensive for the overall service; but the flight departed on time and arrived early.

The 700 model seating is too tight both seat size & leg room

Flights were full but SWA still managed to get everyone loaded and depart on time. No snack or beverage service on the first leg due to turbulance. Seats were clean but very little cushioning. Reasonable amount of leg room.

I liked receiving attention from aged and well experienced flight attendants. I disliked the non-gluten-free snack but I brought my own so I was OK.

Our two flights from GRR to MDW and MDW to OAK were both delayed due to weather. Be sure to build in a sufficient buffer in the transfer time to account for this type of problem. SW recommends connections as short as 40 min. Don't do this. We had to change concourses in MDW, a pretty long walk, to make our connection. Rule of thumb I use when traveling on flights with multiple legs is for connections of 80 min or more, unless there is no plane change, in which case it doesn't matter.

Smooth flight. Left on time, and got in 15 minutes early. Onboard video was great

Flight was canceled, and no effort was made to help with rebooking, no hotel vouchers, no car transportation and minimal food voucher and most places for food were closed by the time the voucher was given. Waited for 3 hours for bags. Simply the worst travel experience I have ever had

It was a great flight and the stewards and stewardess were all kind and accommodating!! The seats were comfortable and entertainment screen excellent!

My flight was 6 pm 6/6. Every hour they delayed it again - air condition issues then no pilot then the crew had worked too many hours and cancelled the flight at 11 pm. Sent customers to NJ a 45 minutes uber ride to a hotel. Had to be back by 5 am for a 7 am flight and again no pilot etc with another three hours of delays.

737-800 in first class was pretty dumpy. Seat had an uncomfortable angle, storage under the seat was blocked so even my very modest backpack didn't fit, power outlet was flaky. Weird tiny seat pockets that couldn't hold a gallon ziploc bag, emesis bag missing, etc. etc. No in-flight service due to turbulence. Crew was excellent, boarding was smooth despite a full flight.

Delta flight was on time, seats were comfortable, and crew was nice.

Airline lost my luggage and set me back a day worth of travel due to having to stay in Denver to wait on my luggage

The flight was overbooked and the staff at the gate started calling for volunteers to drop out and offering incentives. That delayed the flight

There was no wifi even after my husband paid for wifi it wasn’t working. The plane looked and felt old.

Update the cabin with tv screens or at least music sources.

Flight was late, the only reason I almost missed my flight was that my connection was also late.

Seat pitch is horrible especially on the 15 hour flight. Gate crew at SFO was Outstanding. The flight crew was also great.

Booked through Kayak Business, had a seat in middle and towards back due to booking rate, not comfortable.

I had a cancelled flight because of technical issues going to my destination, and a delayed flight coming home. All told it wasn’t a total bust.

Seats are uncomfortable. This has been a trend in the industry for decades. Trying to fit more seats on each plane to increase profits at the expense of the passenger.

Women boarding passengers at the gate was absolutely rude and disrespectful of passengers. The flight attendant was absolutely delightful! Smiling and connected with the passengers. So happy. The seats are cramped and uncomfortable but I guess that’s just the way it is Communication regarding flight was excellent

I understand stuff happens, but plane failures are likely due to lack of maintenance. Additionally, air conditioning wasn't working, no snack/drink service, no WiFi. Fortunately, the crew was communicative and light-hearted. United grabbed another plane and we were able to get to our destination.

I was supposed to be on business class at first class from Denver back to Miami due to weather changes. I missed my connection and it’s put on a flight to Fort Lauderdale. Instead of honoring my business class/1st class ticket, they put me in coach, but there were two first class seats open. I think it’s absolutely disgusting that I paid for first class $1300 ticket and they put me in economy and they had to open seats available and I have still not been refunded the difference. I ended up having to eat a snack box instead of the meal I was supposed to get and did not get home till 2 AM so I think that’s a little pathetic that I had to live off crackers for dinner And my poor dog ate some cheese and salami. Oh yes, apparently when they switched me to the new flight they forgot to mention I had a service dog

It was fine. The flight attendant appeared to be in a bad mood but everything was fine.

The entertainment would not work. The comfort of the seats leaves something to be desired, pretty uncomfortable.

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

Information on your arrival and departure airports