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Pueblo

$68+ Cheap flights from Ontario (ONT) to Pueblo, CO

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 12/14. Fares are subject to change and may not be available on all flights or dates of travel.
ONT — COS
Nov 29 — Dec 61
Sat 11/29
Sat 12/6
1 adult, Economy
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Cheapflights Tip: The best prices from Ontario to Pueblo are usually found in January or February, booked 88 days in advance, depart on a Friday or Thursday and return on a Saturday

Cheap flight deals from Ontario to Pueblo

Keep the following information in mind while searching for Ontario to Pueblo flight deals. Data was last updated October 30, 2025.

Most accurate provider

CheapOair
3 stars

Most trusted provider

CheapOair
3 stars

Round-trip from

$91
(Mytrip)

One-way from

$68
(Kiwi.com)

Popular in

June

Cheapest in

January

Average price

$159
Provider with most accurate pricing for Los Angeles-Denver Intl flight deals.
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From Ontario to Pueblo
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One-way flight from Ontario to Pueblo
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Highest demand for flights based on searches. 15% potential increase in price ($28 potential increase over avg. RT price).
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Cheapest flight prices on average. 4% potential price decrease ($6 potential savings vs. average RT price).
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Average for round-trip flights in October 2025
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Find flight deals from Ontario to Pueblo

Cheapest flights from Ontario to Pueblo
Explore the most affordable flight options available from Ontario to Pueblo. Find the lowest fares from popular airlines and budget airlines, with prices last updated on October 30, 2025.

This Mytrip deal was found by Cheapflights users on 10/28. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/156:53 amONT - DEN
Nonstop2h 25mFrontier
Sun 11/167:45 amDEN - ONT
1 stop16h 55mFrontier
Deal found 10/28$91
This Frontier deal was found by Cheapflights users on 10/29. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/1512:05 pmONT - DEN
Nonstop2h 29mFrontier
Wed 11/198:05 pmDEN - ONT
Nonstop2h 22mFrontier
Deal found 10/29$92
This CheapOair deal was found by Cheapflights users on 10/30. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/153:20 pmONT - DEN
Nonstop2h 20mFrontier
Tue 12/3010:32 pmDEN - ONT
Nonstop2h 27mFrontier
Deal found 10/30$95
This CheapOair deal was found by Cheapflights users on 10/28. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/53:20 pmONT - DEN
Nonstop2h 20mFrontier
Tue 12/96:30 amDEN - ONT
1 stop15h 47mFrontier
Deal found 10/28$97
This Flightnetwork deal was found by Cheapflights users on 10/29. 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 Flightnetwork is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/118:45 amONT - DEN
Nonstop2h 22mFrontier
Tue 11/1810:29 pmDEN - ONT
1 stop23h 13mFrontier
Deal found 10/29$98
This CheapOair deal was found by Cheapflights users on 10/30. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/116:15 amONT - DEN
1 stop20h 43mFrontier
Mon 12/1512:58 pmDEN - ONT
Nonstop2h 27mFrontier
Deal found 10/30$100
This Frontier deal was found by Cheapflights users on 10/28. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/176:53 amONT - DEN
Nonstop2h 25mFrontier
Tue 11/188:05 pmDEN - ONT
Nonstop2h 22mFrontier
Deal found 10/28$101
This CheapOair deal was found by Cheapflights users on 10/27. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/156:53 amONT - DEN
Nonstop2h 25mFrontier
Mon 11/179:48 amDEN - ONT
Nonstop2h 22mFrontier
Deal found 10/27$102
This Priceline deal was found by Cheapflights users on 10/29. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/53:20 pmONT - DEN
Nonstop2h 20mFrontier
Sat 12/612:58 pmDEN - ONT
Nonstop2h 27mFrontier
Deal found 10/29$103
This Frontier deal was found by Cheapflights users on 10/29. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/151:37 pmONT - DEN
1 stop5h 28mFrontier
Sat 11/1510:29 pmDEN - ONT
Nonstop2h 21mFrontier
Deal found 10/29$104
This Frontier deal was found by Cheapflights users on 10/28. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/128:00 amONT - DEN
1 stop6h 48mFrontier
Sat 11/159:48 amDEN - ONT
Nonstop2h 22mFrontier
Deal found 10/28$106

Cheapflights Fare Finder

 
Customize your flight search to find flights from Ontario to Pueblo 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 October 30, 2025.
Use the filters below to find and compare flights from Ontario to Pueblo that are best for you.

Fly from

Ontario

Fly to

Pueblo

Route

Depart

Return

Price

OntarioDenver

ONT - DEN

ONTDEN

Ontario

Sat 11/15

1:37 pm-8:05 pm

1 stop5h 28m

Denver Intl

Mon 11/17

7:00 am-12:51 pm

1 stop6h 51m

$110

OntarioDenver

ONT - DEN

ONTDEN

Ontario

Sun 11/16

6:53 am-10:18 am

Nonstop2h 25m

Denver Intl

Mon 11/17

6:36 pm-9:57 pm

1 stop4h 21m

$135

OntarioDenver

ONT - DEN

ONTDEN

Ontario

Tue 11/11

8:45 am-12:07 pm

Nonstop2h 22m

Denver Intl

Sat 11/15

10:29 pm-7:17 am

1 stop9h 48m

$140

OntarioDenver

ONT - DEN

ONTDEN

Ontario

Thu 12/18

5:55 pm-11:25 pm

1 stop4h 30m

Denver Intl

Mon 12/22

10:45 pm-12:05 am

Nonstop2h 20m

$163

OntarioDenver

ONT - DEN

ONTDEN

Ontario

Thu 11/20

6:30 am-12:16 pm

1 stop4h 46m

Denver Intl

Sun 11/23

10:29 pm-11:57 pm

Nonstop2h 28m

$164

OntarioDenver

ONT - DEN

ONTDEN

Ontario

Tue 12/30

5:10 pm-10:50 pm

1 stop4h 40m

Denver Intl

Thu 1/1

8:00 am-1:15 pm

1 stop6h 15m

$177

OntarioDenver

ONT - DEN

ONTDEN

Ontario

Tue 12/23

5:10 pm-10:50 pm

1 stop4h 40m

Denver Intl

Tue 12/30

5:30 am-8:50 am

1 stop4h 20m

$177

OntarioDenver

ONT - DEN

ONTDEN

Ontario

Sun 12/28

6:45 am-10:06 am

Nonstop2h 21m

Denver Intl

Sat 1/3

10:32 pm-11:59 pm

Nonstop2h 27m

$179

OntarioDenver

ONT - DEN

ONTDEN

Ontario

Tue 12/9

5:45 am-9:00 am

Nonstop2h 15m

$79

OntarioDenver

ONT - DEN

ONTDEN

Ontario

Wed 12/10

11:15 am-2:25 pm

Nonstop2h 10m

$79

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/30

Showing 1-10 of 19 results
1
2

Best time to book a flight from Ontario to Pueblo

Have a flexible travel schedule? Discover the best time to fly to Pueblo from Ontario 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 Ontario to Pueblo

How far ahead should I book a flight from Ontario to Pueblo?

Use this chart to determine the optimal time to book a round-trip flight from Ontario to Pueblo. Price data was last updated on October 24, 2025.

The best time to book flights from Ontario to Pueblo is 88 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.

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

Currently, August is the cheapest month in which you can book a flight from Ontario to Pueblo (average of $45). Flying from Ontario to Pueblo in January is currently the most expensive (average of $273). 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 ONT to PU5?

Find hourly flight availability from Ontario to Pueblo. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated October 30, 2025.

A simple way to save on the total cost of your ticket is to fly from Ontario to Pueblo in the afternoon. If you’re flexible enough to do this you can expect to save up to 44% on your trip compared to booking a flight at noon.

Reviews of airlines servicing Pueblo

Get insights into the airlines that provide service to Pueblo. 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 Pueblo. Reviews last updated October 30, 2025.
Get a feel of what it's like to fly with Southwest, Delta, and United Airlines from Ontario to Pueblo by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Southwest
8.0
Very good
4,242 reviews

Comfort

8.0

Entertainment

7.5

Crew

8.6

Overall

8.0

Boarding

8.1

Food

7.0

Reviews

1 / 20
8.0
Excellent

Walter,Aug 2025

OAK - SAN

Dozens of flights and I've never seen a row's beverages forgotten. I even went back and asked the attendant to check on them and nothing. I really hope it didn't have something to do with the Black mother with her kid in the row. Otherwise it was a typical Southwest flight, rapid boarding, tolerable leg room.
Southwest
8.0
Very good
4,242 reviews
Southwest
8.0
Very good
4,242 reviews

Comfort

8.0

Entertainment

7.5

Crew

8.6

Overall

8.0

Boarding

8.1

Food

7.0

Reviews

1 / 20
8.0
Excellent

Walter,Aug 2025

OAK - SAN

Dozens of flights and I've never seen a row's beverages forgotten. I even went back and asked the attendant to check on them and nothing. I really hope it didn't have something to do with the Black mother with her kid in the row. Otherwise it was a typical Southwest flight, rapid boarding, tolerable leg room.
Delta
7.9
Good
7,993 reviews
Southwest
8.0
Very good
4,242 reviews

Comfort

8.0

Entertainment

7.5

Crew

8.6

Overall

8.0

Boarding

8.1

Food

7.0

Reviews

1 / 20
8.0
Excellent

Walter,Aug 2025

OAK - SAN

Dozens of flights and I've never seen a row's beverages forgotten. I even went back and asked the attendant to check on them and nothing. I really hope it didn't have something to do with the Black mother with her kid in the row. Otherwise it was a typical Southwest flight, rapid boarding, tolerable leg room.
United Airlines
7.4
Good
8,998 reviews
Southwest
8.0
Very good
4,242 reviews

Comfort

8.0

Entertainment

7.5

Crew

8.6

Overall

8.0

Boarding

8.1

Food

7.0

Reviews

1 / 20
8.0
Excellent

Walter,Aug 2025

OAK - SAN

Dozens of flights and I've never seen a row's beverages forgotten. I even went back and asked the attendant to check on them and nothing. I really hope it didn't have something to do with the Black mother with her kid in the row. Otherwise it was a typical Southwest flight, rapid boarding, tolerable leg room.
Frontier
5.8
Fair
3,123 reviews
Southwest
8.0
Very good
4,242 reviews

Comfort

8.0

Entertainment

7.5

Crew

8.6

Overall

8.0

Boarding

8.1

Food

7.0

Reviews

1 / 20
8.0
Excellent

Walter,Aug 2025

OAK - SAN

Dozens of flights and I've never seen a row's beverages forgotten. I even went back and asked the attendant to check on them and nothing. I really hope it didn't have something to do with the Black mother with her kid in the row. Otherwise it was a typical Southwest flight, rapid boarding, tolerable leg room.

Related info for your journey

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

  • What airport do you fly from for flights from Ontario to Pueblo?

    If you book a flight to Pueblo from Ontario, you will be flying from Ontario, which is the city’s only airport. Ontario (ONT) is located 3.1 mi from the center of Ontario. There are 2 flights from Ontario to Pueblo per day from 3 different airlines.

  • How long is the flight from Ontario to Pueblo?

    Departing from Ontario to Pueblo will take you 5h 28m. The distance between Ontario and Pueblo is about 817 mi.

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

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

  • How can I find direct flights from Ontario to Pueblo?

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

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

    Yes. Cheapflights offers flight deals from Ontario to Pueblo 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 Ontario to Pueblo?

    Currently, August is the cheapest month in which you can book a flight from Ontario to Pueblo (average of $45). Flying from Ontario to Pueblo in January is currently the most expensive (average of $273). 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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Top 3 airlines flying from Ontario to Pueblo

Discover the top 3 airlines that operate flights from Ontario to Pueblo. 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 October 30, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$109Average$272FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$218Average$416FlexibilityNo cancel feeOn-time69%
SouthwestCheapest$236Average$367FlexibilityNo cancel feeOn-time63%

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