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$110+ Cheap flights from Colorado Springs to Ontario (COS - ONT)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 4/16. Fares are subject to change and may not be available on all flights or dates of travel.
COS — ONT
Mar 26 — Apr 21
Wed 3/26
Wed 4/2
1 adult, Economy
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Cheap flight deals from Colorado Springs to Ontario

Discover tips and strategies to find the most affordable flight options for your journey from Colorado Springs (COS) to Ontario (ONT). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated March 21, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$289
(United Airlines)

One-way from

$110
(Delta)

Popular in

January

Cheapest in

September

Average price

$493
Provider with most accurate pricing for Colorado Springs-Ontario flight deals.
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Provider most trusted by Cheapflights users for Colorado Springs-Ontario flights.
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From Colorado Springs to Ontario
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One-way flight from Colorado Springs to Ontario
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Highest demand for flights based on searches. 15% potential increase in price ($79 potential increase over avg. RT price).
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Cheapest flight prices on average. 8% potential price decrease ($34 potential savings vs. average RT price).
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Average for round-trip flights in March 2025
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Find flight deals from Colorado Springs to Ontario

Cheapest flights from Colorado Springs to Ontario
Explore the most affordable flight options available from Colorado Springs to Ontario. Find the lowest fares from popular airlines and budget airlines, with prices last updated on March 21, 2025.

This United Airlines deal was found by Cheapflights users on 3/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 4/123:30 pmCOS - ONT
1 stop6h 12mUnited Airlines
Mon 4/145:00 amONT - COS
1 stop4h 49mUnited Airlines
Deal found 3/20$289
This Delta deal was found by Cheapflights users on 3/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/195:55 pmCOS - ONT
1 stop6h 48mDelta
Sun 8/319:55 amONT - COS
1 stop6h 18mDelta
Deal found 3/20$322
This Southwest deal was found by Cheapflights users on 3/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 4/253:45 pmCOS - ONT
1 stop8h 15mSouthwest
Mon 4/282:55 pmONT - COS
1 stop5h 30mSouthwest
Deal found 3/19$332
This American Airlines deal was found by Cheapflights users on 3/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/214:39 pmCOS - ONT
1 stop6h 31mAmerican Airlines
Thu 4/242:44 pmONT - COS
1 stop8h 02mAmerican Airlines
Deal found 3/20$370

Cheapflights Fare Finder

Customize your flight search to find flights from Colorado Springs to Ontario that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated March 21, 2025.
Use the filters below to find and compare flights from Colorado Springs to Ontario that are best for you.

Fly from

Colorado Springs

Fly to

Ontario

Route

Depart

Return

Price

Colorado SpringsOntario

COS - ONT

COSONT

Colorado Springs

Sat 4/12

3:30 pm-8:42 pm

1 stop6h 12m

Ontario

Mon 4/14

5:00 am-10:49 am

1 stop4h 49m

$289

Colorado SpringsOntario

COS - ONT

COSONT

Colorado Springs

Tue 8/19

5:55 pm-11:43 pm

1 stop6h 48m

Ontario

Sun 8/31

9:55 am-5:13 pm

1 stop6h 18m

$322

Colorado SpringsOntario

COS - ONT

COSONT

Colorado Springs

Fri 4/25

3:45 pm-11:00 pm

1 stop8h 15m

Ontario

Mon 4/28

2:55 pm-9:25 pm

1 stop5h 30m

$332

Colorado SpringsOntario

COS - ONT

COSONT

Colorado Springs

Mon 4/21

4:39 pm-10:10 pm

1 stop6h 31m

Ontario

Thu 4/24

2:44 pm-11:46 pm

1 stop8h 02m

$370

Colorado SpringsOntario

COS - ONT

COSONT

Colorado Springs

Wed 4/16

8:05 am-12:16 pm

1 stop5h 11m

$110

Colorado SpringsOntario

COS - ONT

COSONT

Colorado Springs

Thu 4/17

5:55 am-9:20 am

1 stop4h 25m

$144

Colorado SpringsOntario

COS - ONT

COSONT

Colorado Springs

Wed 4/16

12:41 pm-9:58 pm

2 stops10h 17m

$149

Colorado SpringsOntario

COS - ONT

COSONT

Colorado Springs

Tue 6/24

6:00 am-12:14 pm

2 stops7h 14m

$150

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/20

Compare providers for flights from Colorado Springs to Ontario

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Colorado Springs to Ontario in March.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars
eDreamsPrice Accuracy3 starsTrust Score*3 stars
PricelinePrice Accuracy1 starTrust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Colorado Springs-Ontario flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Colorado Springs-Ontario flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Colorado Springs-Ontario flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Colorado Springs-Ontario flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Colorado Springs-Ontario flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from Colorado Springs to Ontario

Have a flexible travel schedule? Discover the best time to fly to Ontario from Colorado Springs with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

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

What is the cheapest month to book a flight from Colorado Springs to Ontario?

Currently, August is the cheapest month in which you can book a flight from Colorado Springs to Ontario (average of $246). Flying from Colorado Springs to Ontario in March is currently the most expensive (average of $324). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from COS to ONT?

Find hourly flight availability from Colorado Springs to Ontario. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated March 21, 2025.

Unlike at noon, when flights are generally more expensive, you can save up to 14% on flights from Colorado Springs to Ontario by exploring options for tickets in the evening.

Rainfall in Ontario by month

Plan your trip to Ontario by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Ontario ranges from 0.1 - 3.4 inches per month. February is typically the wettest month, when rainfall can reach 3.4 in. June is typically the driest time to visit Ontario when rainfall is around 0.1 in.

Temperature in Ontario by month

Plan your trip to Ontario by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Ontario, use this chart to help with planning. For those seeking warmer temperatures, August is the ideal time of year to visit, when temperatures reach an average of 78.8 F. Travelers looking to avoid the cold should look outside of December, when temperatures are typically at their lowest (around 53.6 F).

Reviews of airlines servicing Ontario

Get insights into the airlines that provide service to Ontario. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Ontario. Reviews last updated March 21, 2025.
Get a feel of what it's like to fly with Southwest, Delta and United Airlines from Colorado Springs to Ontario by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Southwest
8.1
Very good
4,278 reviews

Boarding

8.2

Food

7.1

Comfort

8.1

Entertainment

7.6

Crew

8.7

Overall

8.1

Reviews

1 / 20
10.0
Excellent

Merlyn,Feb 2025

LAX - SMF

New Terminal is neat, lost of stores and places to catch a bite.
Southwest
8.1
Very good
4,278 reviews
Southwest
8.1
Very good
4,278 reviews

Boarding

8.2

Food

7.1

Comfort

8.1

Entertainment

7.6

Crew

8.7

Overall

8.1

Reviews

1 / 20
10.0
Excellent

Merlyn,Feb 2025

LAX - SMF

New Terminal is neat, lost of stores and places to catch a bite.
Delta
8.0
Very good
7,895 reviews
Southwest
8.1
Very good
4,278 reviews

Boarding

8.2

Food

7.1

Comfort

8.1

Entertainment

7.6

Crew

8.7

Overall

8.1

Reviews

1 / 20
10.0
Excellent

Merlyn,Feb 2025

LAX - SMF

New Terminal is neat, lost of stores and places to catch a bite.
United Airlines
7.4
Good
8,605 reviews
Southwest
8.1
Very good
4,278 reviews

Boarding

8.2

Food

7.1

Comfort

8.1

Entertainment

7.6

Crew

8.7

Overall

8.1

Reviews

1 / 20
10.0
Excellent

Merlyn,Feb 2025

LAX - SMF

New Terminal is neat, lost of stores and places to catch a bite.
American Airlines
7.2
Good
10,000 reviews
Southwest
8.1
Very good
4,278 reviews

Boarding

8.2

Food

7.1

Comfort

8.1

Entertainment

7.6

Crew

8.7

Overall

8.1

Reviews

1 / 20
10.0
Excellent

Merlyn,Feb 2025

LAX - SMF

New Terminal is neat, lost of stores and places to catch a bite.

Related info for your journey

Find useful and relevant information for your journey from Colorado Springs to Ontario. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What are the cheapest airlines flying from Colorado Springs to Ontario round-trip?

    Our cheapest airline available from Colorado Springs to Ontario is United Airlines. Our recent data shows that you can find tickets from as low as $289 on this airline. Additional options worth looking into are Delta and Southwest, starting at $322 and $332 round-trip. Users have found that United Airlines is 35% cheaper than the other options available to this destination.

  • What are the cheapest airlines to fly from Colorado Springs to Ontario one-way?

    $110 is the cheapest one-way deal found within the past few days, from Delta. You may also be able to find cheap deals on Southwest and American Airlines, with prices starting from $144 and $149, respectively.

  • Can I find deals for flights from Colorado Springs to Ontario that include hotel bookings?

    Yes. In addition to deals on Colorado Springs to Ontario flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Colorado Springs to Ontario?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Colorado Springs to Ontario.

  • Can I find deals for business class flights from Colorado Springs to Ontario?

    Yes. Cheapflights offers flight deals from Colorado Springs to Ontario by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

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

    Currently, August is the cheapest month in which you can book a flight from Colorado Springs to Ontario (average of $246). Flying from Colorado Springs to Ontario in March is currently the most expensive (average of $324). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

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Alternative routes for Colorado Springs to Ontario

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Top 3 airlines flying from Colorado Springs to Ontario

Discover the top 3 airlines that operate flights from Colorado Springs to Ontario. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated March 21, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$250Average$356FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$295Average$391FlexibilityNo cancel feeOn-time69%
SouthwestCheapest$296Average$406FlexibilityNo cancel feeOn-time63%
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