$99+ 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 12/1. Fares are subject to change and may not be available on all flights or dates of travel.
COS — ONT
Jul 15 — Jul 221
Round-trip
1 adult, Economy
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Find cheap flights from Colorado Springs to Ontario with Cheapflights
1. Tell us where you want to go
Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”2. Select your favorite providers
We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.3. Compare prices and book
Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.Cheap flight deals from Colorado Springs to Ontario
Cheapest
Best
Last-minute
One-way
Cheapest flights from Colorado Springs to OntarioExplore 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 June 15, 2026.
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 June 15, 2026.
This Southwest deal was found by Cheapflights users on 6/15. 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.
Tue 8/185:40 pm
COS
- ONT
1 stop4h 15m
Southwest
Sat 8/225:40 am
ONT
- COS
1 stop5h 30m
Southwest
Deal found 6/15![Southwest logo]()
$210
This Delta deal was found by Cheapflights users on 6/11. 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 8/186:16 pm
COS
- ONT
1 stop6h 18m
Delta
Sat 8/225:05 pm
ONT
- COS
1 stop4h 23m
Delta
Deal found 6/11![Delta logo]()
$223
This Delta deal was found by Cheapflights users on 6/10. 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.
Wed 9/26:16 pm
COS
- ONT
1 stop5h 07m
Delta
Wed 9/95:05 pm
ONT
- COS
1 stop4h 24m
Delta
Deal found 6/10![Delta logo]()
$231
This Southwest deal was found by Cheapflights users on 6/12. 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.
Wed 7/87:55 pm
COS
- ONT
1 stop4h 10m
Southwest
Sat 7/256:30 pm
ONT
- COS
1 stop4h 05m
Southwest
Deal found 6/12![Southwest logo]()
$269
This United Airlines deal was found by Cheapflights users on 6/14. 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.
Tue 8/258:38 am
COS
- ONT
2 stops10h 33m
United Airlines
Wed 8/265:00 am
ONT
- COS
1 stop4h 44m
United Airlines
Deal found 6/14![United Airlines logo]()
$282
This Southwest deal was found by Cheapflights users on 6/14. 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.
Tue 7/286:00 am
COS
- ONT
2 stops7h 55m
Southwest
Thu 7/3012:45 pm
ONT
- COS
1 stop5h 35m
Southwest
Deal found 6/14![Southwest logo]()
$299
This United Airlines deal was found by Cheapflights users on 6/13. 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 11/145:13 pm
COS
- ONT
1 stop4h 07m
United Airlines
Mon 11/165:00 am
ONT
- COS
1 stop4h 41m
United Airlines
Deal found 6/13![United Airlines logo]()
$303
Best flights from Colorado Springs to OntarioDiscover carefully curated flight deals from Colorado Springs to Ontario that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated June 15, 2026.
Discover carefully curated flight deals from Colorado Springs to Ontario that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated June 15, 2026.
This Delta deal was found by Cheapflights users on 6/14. 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 8/186:16 pm
COS
- ONT
1 stop6h 18m
Delta
Sat 8/225:05 pm
ONT
- COS
1 stop4h 23m
Delta
Deal found 6/14![Delta logo]()
$210
This United Airlines deal was found by Cheapflights users on 6/14. 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.
Tue 8/258:38 am
COS
- ONT
2 stops10h 33m
United Airlines
Wed 8/265:00 am
ONT
- COS
1 stop4h 44m
United Airlines
Deal found 6/14![United Airlines logo]()
$282
This Southwest deal was found by Cheapflights users on 6/14. 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 7/104:55 pm
COS
- ONT
1 stop4h 05m
Southwest
Sat 7/186:30 pm
ONT
- COS
1 stop4h 05m
Southwest
Deal found 6/14![Southwest logo]()
$377
This Delta deal was found by Cheapflights users on 6/10. 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.
Wed 9/26:16 pm
COS
- ONT
1 stop5h 07m
Delta
Wed 9/95:05 pm
ONT
- COS
1 stop4h 24m
Delta
Deal found 6/10![Delta logo]()
$231
This Southwest deal was found by Cheapflights users on 6/10. 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 8/144:20 pm
COS
- ONT
2 stops6h 45m
Southwest
Sun 8/165:35 am
ONT
- COS
1 stop5h 00m
Southwest
Deal found 6/10![Southwest logo]()
$379
This Delta deal was found by Cheapflights users on 6/12. 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.
Fri 9/186:14 pm
COS
- ONT
1 stop6h 23m
Delta
Mon 9/215:13 pm
ONT
- COS
1 stop4h 41m
Delta
Deal found 6/12![Delta logo]()
$345
Last-minute flights from Colorado Springs to OntarioDiscover last-minute flight deals from Colorado Springs to Ontario. Data last updated June 15, 2026 and is based on user searches.
Discover last-minute flight deals from Colorado Springs to Ontario. Data last updated June 15, 2026 and is based on user searches.
This Southwest deal was found by Cheapflights users on 6/12. 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.
Sat 7/49:15 am
COS
- ONT
1 stop5h 15m
Southwest
Tue 7/74:10 pm
ONT
- COS
1 stop6h 40m
Southwest
Deal found 6/12![Southwest logo]()
$305
This Southwest deal was found by Cheapflights users on 6/12. 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.
Wed 7/87:55 pm
COS
- ONT
1 stop4h 10m
Southwest
Sat 7/256:30 pm
ONT
- COS
1 stop4h 05m
Southwest
Deal found 6/12![Southwest logo]()
$269
This Southwest deal was found by Cheapflights users on 6/12. 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 7/104:55 pm
COS
- ONT
1 stop4h 05m
Southwest
Sat 7/186:30 pm
ONT
- COS
1 stop4h 05m
Southwest
Deal found 6/12![Southwest logo]()
$377
This Southwest deal was found by Cheapflights users on 6/12. 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 7/174:55 pm
COS
- ONT
1 stop4h 05m
Southwest
Mon 7/208:45 pm
ONT
- COS
1 stop3h 40m
Southwest
Deal found 6/12![Southwest logo]()
$391
This Southwest deal was found by Cheapflights users on 6/14. 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.
Tue 7/286:00 am
COS
- ONT
2 stops7h 55m
Southwest
Thu 7/3012:45 pm
ONT
- COS
1 stop5h 35m
Southwest
Deal found 6/14![Southwest logo]()
$299
One-way flights from Colorado Springs to OntarioSearch for one-way flight options from Colorado Springs to Ontario. Find affordable one-way fares based on user searches. Data last updated June 15, 2026.
Search for one-way flight options from Colorado Springs to Ontario. Find affordable one-way fares based on user searches. Data last updated June 15, 2026.
This Delta deal was found by Cheapflights users on 6/14. 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 12/15:55 pm
COS
- ONT
1 stop6h 53m
Delta
Deal found 6/14![Delta logo]()
$99
This Southwest deal was found by Cheapflights users on 6/14. 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.
Tue 12/17:50 am
COS
- ONT
2 stops6h 25m
Southwest
Deal found 6/14![Southwest logo]()
$195
This Southwest deal was found by Cheapflights users on 6/13. 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 9/187:20 am
COS
- ONT
1 stop4h 00m
Southwest
Deal found 6/13![Southwest logo]()
$196
This United Airlines deal was found by Cheapflights users on 6/12. 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.
Tue 7/285:13 pm
COS
- ONT
1 stop4h 29m
United Airlines
Deal found 6/12![United Airlines logo]()
$218
This United Airlines deal was found by Cheapflights users on 6/10. 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.
Fri 11/277:00 am
COS
- ONT
1 stop6h 33m
United Airlines
Deal found 6/10![United Airlines logo]()
$223
This United Airlines deal was found by Cheapflights users on 6/11. 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 8/85:30 am
COS
- ONT
2 stops7h 42m
United Airlines
Deal found 6/11![United Airlines logo]()
$228
This United Airlines deal was found by Cheapflights users on 6/13. 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.
Thu 11/127:00 am
COS
- ONT
1 stop6h 33m
United Airlines
Deal found 6/13![United Airlines logo]()
$230
This Delta deal was found by Cheapflights users on 6/12. 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.
Fri 9/188:00 am
COS
- ONT
1 stop5h 10m
Delta
Deal found 6/12![Delta logo]()
$234
This KAYAK deal was found by Cheapflights users on 6/13. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 6/246:20 pm
COS
- ONT
1 stop6h 29m
Delta
Deal found 6/13![Delta logo]()
$236
This Kiwi.com deal was found by Cheapflights users on 6/13. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/75:09 pm
COS
- ONT
3 stops31h 41m
Multiple Airlines
Deal found 6/13![Multiple Airlines logo]()
$253
Find 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 June 15, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $210 (Delta) |
One-way from | $99 (Delta) |
Popular in | March |
Cheapest in | January |
Average price | $287 |
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 June 15, 2026.
Use the filters below to find and compare flights from Colorado Springs to Ontario that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
Colorado SpringsOntario
COS - ONT
COSONT
Colorado Springs
Tue 8/18
6:16 pm-11:34 pm
1 stop6h 18m
Ontario
Sat 8/22
5:05 pm-10:28 pm
1 stop4h 23m
$210
Colorado SpringsOntario
COS - ONT
COSONT
Colorado Springs
Wed 9/2
6:16 pm-10:23 pm
1 stop5h 07m
Ontario
Wed 9/9
5:05 pm-10:29 pm
1 stop4h 24m
$231
Colorado SpringsOntario
COS - ONT
COSONT
Colorado Springs
Tue 8/25
8:38 am-6:11 pm
2 stops10h 33m
Ontario
Wed 8/26
5:00 am-10:44 am
1 stop4h 44m
$282
Colorado SpringsOntario
COS - ONT
COSONT
Colorado Springs
Fri 9/18
6:14 pm-11:37 pm
1 stop6h 23m
Ontario
Mon 9/21
5:13 pm-10:54 pm
1 stop4h 41m
$345
Quickest round-trip
Colorado SpringsOntario
COS - ONT
COSONT
Colorado Springs
Fri 7/10
4:55 pm-8:00 pm
1 stop4h 05m
Ontario
Sat 7/18
6:30 pm-11:35 pm
1 stop4h 05m
$377
Colorado SpringsOntario
COS - ONT
COSONT
Colorado Springs
Fri 8/14
4:20 pm-10:05 pm
2 stops6h 45m
Ontario
Sun 8/16
5:35 am-11:35 am
1 stop5h 00m
$379
Cheapest one-way
Colorado SpringsOntario
COS - ONT
COSONT
Colorado Springs
Tue 12/1
5:55 pm-11:48 pm
1 stop6h 53m
$99
Colorado SpringsOntario
COS - ONT
COSONT
Colorado Springs
Tue 12/1
7:50 am-1:15 pm
2 stops6h 25m
$195
Quickest one-way
Colorado SpringsOntario
COS - ONT
COSONT
Colorado Springs
Fri 9/18
7:20 am-10:20 am
1 stop4h 00m
$196
Colorado SpringsOntario
COS - ONT
COSONT
Colorado Springs
Sat 8/8
5:30 am-12:12 pm
2 stops7h 42m
$228
Showing 1-10 of 14 resultsSorted by cheapest first
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 June.
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy1 star | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars |
- 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.
COS-ONT
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, January is the cheapest month in which you can book a flight from Colorado Springs to Ontario (average of $196). Flying from Colorado Springs to Ontario in March is currently the most expensive (average of $496). 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.
How much does it cost to fly round-trip from Colorado Springs to Ontario?
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 June 15, 2026.
Get a feel of what it's like to fly with Southwest,Delta, andUnited 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.
Boarding
8.1
Crew
8.6
Comfort
8.0
Entertainment
7.5
Food
7.0
Overall
7.9
Reviews
1 / 20
10.0
ExcellentWalter,May 2026
LAS - BUR
Boarding
8.1
Crew
8.6
Comfort
8.0
Entertainment
7.5
Food
7.0
Overall
7.9
Reviews
1 / 20
10.0
ExcellentWalter,May 2026
LAS - BUR
Boarding
8.1
Crew
8.6
Comfort
8.0
Entertainment
7.5
Food
7.0
Overall
7.9
Reviews
1 / 20
10.0
ExcellentWalter,May 2026
LAS - BUR
Boarding
8.1
Crew
8.6
Comfort
8.0
Entertainment
7.5
Food
7.0
Overall
7.9
Reviews
1 / 20
10.0
ExcellentWalter,May 2026
LAS - BUR
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.
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Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.
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Complete your trip
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Other flights from Colorado Springs
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Alternative routes for Colorado Springs to Ontario
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Complete your trip
Complete your trip to Ontario by adding a car rental and/or hotel reservation to your travel itinerary.
Search flights from Colorado Springs to Ontario by cabin class
Find flights from Colorado Springs to Ontario, based on your preferred cabin class, be it economy, premium economy, business, or first class.
Other flights to Ontario
Explore flights to Ontario departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on June 15, 2026.
Colorado Springs and Ontario flights
Browse other Colorado Springs and Ontario flight options. Last updated on June 15, 2026.
Other flights from Colorado Springs
Browse through other flights departing from Colorado Springs. Flights are based on user searches made on Cheapflights and were last updated on June 15, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
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 June 15, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$196 | Average$277 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$212 | Average$353 | FlexibilityNo cancel fee | On-time63% | |
| Cheapest$223 | Average$483 | FlexibilityNo cancel fee | On-time69% |