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Uncover the best deals on Colorado Springs to Ontario flights by comparing fares from hundreds of airlines and agencies.
Good to Know: Cheapest and Fastest COS - ONT Flights
Useful information for finding best airline tickets from City of Colorado Springs Municipal to Ontario International on your next trip.
Cheapest Round Trip Flight
$327
American Airlines
• 1 stop
• 12h 9m
Nov 01 – Nov 05
The cheapest round trip flight from Colorado Springs to Ontario (COS-ONT-COS) is currently $327
Cheapest Direct Flight
$142
Southwest Airlines
• nonstop
• 5h 50m
Oct 28
The cheapest nonstop flight from Colorado Springs to Ontario (COS-ONT) is currently $142
Fastest Flight
5h 50m
The fastest nonstop flight from Colorado Springs to Ontario (COS-ONT) takes 5h 50m
Top Airlines Flying from Colorado Springs to Ontario
Latest Flight Deals from Colorado Springs (COS) to Ontario (ONT)
Compare and book low fare round-trip air tickets from Colorado Springs to Ontario. Ideal for travelers with confirmed return itineraries.
Nov 01 - Nov 05, Economy
Colorado Springs → Ontario
12h 9m
5:17 PM - 11:46 PM • 1 stop
Colorado Springs → Ontario
13h 25m
9:29 AM - 6:34 PM • 2 stops
American Airlines
Nov 01 - Nov 05, Economy
Colorado Springs → Ontario
15h 59m
12:54 PM - 9:53 PM • 2 stops
Colorado Springs → Ontario
11h 44m
10:30 AM - 6:34 PM • 1 stop
American Airlines
Nov 01 - Nov 05, Economy
Colorado Springs → Ontario
6h 50m
7:45 PM - 10:55 PM • 1 stop
Colorado Springs → Ontario
5h 40m
5:00 AM - 9:40 AM • nonstop
Southwest Airlines
Nov 01 - Nov 05, Economy
Colorado Springs → Ontario
10h 35m
5:05 PM - 10:40 PM • 1 stop
Colorado Springs → Ontario
16h 45m
5:00 AM - 4:05 PM • 1 stop
Southwest Airlines
Nov 01 - Nov 05, Economy
Colorado Springs → Ontario
14h
12:15 PM - 7:55 PM • 1 stop
Colorado Springs → Ontario
6h 40m
6:50 PM - 11:50 PM • 1 stop
Southwest Airlines
Flying to Ontario soon? We've surfaced some of the most affordable last-minute flights from Colorado Springs to Ontario, ideal for urgent plans or spontaneous trips.
Nov 01 - Nov 05, Economy
Colorado Springs → Ontario
12h 9m
5:17 PM - 11:46 PM • 1 stop
Colorado Springs → Ontario
13h 25m
9:29 AM - 6:34 PM • 2 stops
American Airlines
Nov 01 - Nov 05, Economy
Colorado Springs → Ontario
15h 59m
12:54 PM - 9:53 PM • 2 stops
Colorado Springs → Ontario
11h 44m
10:30 AM - 6:34 PM • 1 stop
American Airlines
Nov 01 - Nov 05, Economy
Colorado Springs → Ontario
6h 50m
7:45 PM - 10:55 PM • 1 stop
Colorado Springs → Ontario
5h 40m
5:00 AM - 9:40 AM • nonstop
Southwest Airlines
Nov 01 - Nov 05, Economy
Colorado Springs → Ontario
10h 35m
5:05 PM - 10:40 PM • 1 stop
Colorado Springs → Ontario
16h 45m
5:00 AM - 4:05 PM • 1 stop
Southwest Airlines
Nov 01 - Nov 05, Economy
Colorado Springs → Ontario
14h
12:15 PM - 7:55 PM • 1 stop
Colorado Springs → Ontario
6h 40m
6:50 PM - 11:50 PM • 1 stop
Southwest Airlines
Looking for the fastest way to Ontario? These direct flight options from COS to ONT offer both convenience and value—no layovers, just straight to your destination.
Oct 28 - Nov 05, Economy
Colorado Springs → Ontario
5h 50m
6:30 AM - 9:20 AM • nonstop
Colorado Springs → Ontario
5h 40m
5:00 AM - 9:40 AM • nonstop
Southwest Airlines
Oct 28 - Nov 05, Economy
Colorado Springs → Ontario
6h 40m
7:45 AM - 10:45 AM • nonstop
Colorado Springs → Ontario
5h 40m
5:00 AM - 9:40 AM • nonstop
Southwest Airlines
Oct 26 - Nov 01, Economy
Colorado Springs → Ontario
5h 50m
2:30 PM - 5:20 PM • nonstop
Colorado Springs → Ontario
5h 40m
5:00 AM - 9:40 AM • nonstop
Southwest Airlines
Oct 26 - Nov 01, Economy
Colorado Springs → Ontario
5h 50m
5:30 AM - 8:20 AM • nonstop
Colorado Springs → Ontario
5h 40m
5:00 AM - 9:40 AM • nonstop
Southwest Airlines
Oct 29 - Nov 03, Economy
Colorado Springs → Ontario
5h 50m
5:30 AM - 8:20 AM • nonstop
Colorado Springs → Ontario
5h 40m
4:10 PM - 8:50 PM • nonstop
Southwest Airlines
FAQs on Colorado Springs to Ontario Flights
What are the airports in Colorado Springs?
COS
What’s the most popular airline flying from COS to ONT?
The most popular airline flying from Colorado Springs to Ontario are
Can I fly from COS to ONT non-stop?
Yes, you can fly COS to ONT non-stop on
Which airlines fly nonstop between Colorado Springs and Ontario?
The non-stop flights between Colorado Springs and Ontario are .
What’s the earliest departure time from COS to ONT Airport?
The earliest flight leaves COS at 5:30 am and lands in ONT - Ontario International
What are the airports in Ontario?
ONT
Can I make changes to my Colorado Springs to Ontario flight tickets or cancel them on FareLeaders.com?
No. We are an airfare comparison site. All the tickets are booked by the travel agent offering the flight deal and any changes or cancellations to be made are directly done directly by them or the airlines.
Can I cancel my flight tickets from COS to ONT?
Read the fare rules of the Colorado Springs to Ontario air tickets booked. Some airlines allow you to cancel the tickets within a stipulated time period with a cancellation fee.
Which airline alliances offer flights from Colorado Springs and Ontario?
operate flights between Colorado Springs and Ontario
How long does a flight from Colorado Springs to Ontario take?
It takes approximately 2 hour to fly non-stop from COS to ONT, which is 788.89 miles by air.
Which airlines provide the cheapest flights from Colorado Springs (COS) to Ontario (ONT) ?
In the past couple of days, the cheapest tickets to ONT from COS were found on WN : USD 712
Do I need a passport to fly between COS and ONT?
No
What’s the latest departure time from COS to ONT ?
The last flight leaves COS at 7:45 pm
Colorado Springs (COS) to Ontario (ONT): Airport Information
| Origin Airport | City of Colorado Springs Municipal , Colorado Springs, US |
| Destination Airport | Ontario International , Ontario, US |
| Distance | 789 miles |
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