What are the cheapest airlines to fly from Ontario to Pueblo one-way?

For one-way options, check prices for Frontier. According to our data, you can fly for as low as $41. Users have also found prices from $78 and $78 on United Airlines and Southwest, respectively.

In terms of precipitation, rainfall in Pueblo ranges from 0.5 - 2.3 inches per month. May is typically the wettest month, when rainfall can reach 2.3 in. January is typically the driest time to visit Pueblo when rainfall is around 0.5 in.

If weather is an important factor for your trip to Pueblo, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 73.4 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 30.2 F).

What are the most popular airlines that fly from Ontario to Pueblo?

The most popular airlines flying from Ontario to Pueblo are Frontier, Southwest and United Airlines. Something to consider prior to booking your flight.

What is the cheapest time of day to fly from ONT to PU5?

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Ontario to Pueblo as you normally would.

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 10 flights from Ontario to Pueblo per day from 3 different airlines.

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.

Find Cheap Flights from Ontario to Pueblo

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Cheapflights Tip: The best prices from Ontario to Pueblo are usually found in February or January, booked 72 days in advance, depart on a Saturday or Friday and return on a Tuesday

Find flight deals from Ontario to Pueblo

Most accurate provider	FlightHub 3 stars
Most trusted provider	FlightHub 3 stars
Popular in	June
Cheapest in	February
Average price	$213

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Highest demand for flights based on searches. 19% potential increase in price ($55 potential increase over avg. RT price).

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Cheapest flight prices on average. 3% potential price decrease ($9 potential savings vs. average RT price).

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Average for round-trip flights in October 2026

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Reviews of airlines servicing Pueblo

Get a feel of what it's like to fly with Southwest,Delta, andUnited 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

4,213 reviews

Reviews

1 / 20

2.0

Mediocre

Thomas,Dec 2025

SEA - DEN

Plane two hours late in leaving 1:00 pm west coat time got home next day at 2:45am most car rental places are closed and don’t open till 5am

Southwest

8.0

Very good

4,213 reviews

Southwest

8.0

Very good

4,213 reviews

Reviews

1 / 20

2.0

Mediocre

Thomas,Dec 2025

SEA - DEN

Plane two hours late in leaving 1:00 pm west coat time got home next day at 2:45am most car rental places are closed and don’t open till 5am

Delta

7.8

Good

8,633 reviews

Southwest

8.0

Very good

4,213 reviews

Reviews

1 / 20

2.0

Mediocre

Thomas,Dec 2025

SEA - DEN

Plane two hours late in leaving 1:00 pm west coat time got home next day at 2:45am most car rental places are closed and don’t open till 5am

United Airlines

7.4

Good

10,279 reviews

Southwest

8.0

Very good

4,213 reviews

Reviews

1 / 20

2.0

Mediocre

Thomas,Dec 2025

SEA - DEN

Plane two hours late in leaving 1:00 pm west coat time got home next day at 2:45am most car rental places are closed and don’t open till 5am

Frontier

5.6

Fair

2,554 reviews

Southwest

8.0

Very good

4,213 reviews

Reviews

1 / 20

2.0

Mediocre

Thomas,Dec 2025

SEA - DEN

Plane two hours late in leaving 1:00 pm west coat time got home next day at 2:45am most car rental places are closed and don’t open till 5am

Related info for your journey

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 10 flights from Ontario to Pueblo per day from 3 different airlines.
What are the cheapest airlines to fly from Ontario to Pueblo one-way?
For one-way options, check prices for Frontier. According to our data, you can fly for as low as $41. Users have also found prices from $78 and $78 on United Airlines and Southwest, respectively.
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.

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Top 3 airlines flying from Ontario to Pueblo

Airline	Cheapest	Average	Flexibility	On-time
Delta	Cheapest$196	Average$300	FlexibilityNo cancel fee	On-timeN/A
United Airlines	Cheapest$213	Average$336	FlexibilityNo cancel fee	On-time69%
Southwest	Cheapest$275	Average$426	FlexibilityNo cancel fee	On-time63%

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Find cheap flights from Ontario to Pueblo with Cheapflights

1. Tell us where you want to go

2. Select your favorite providers

3. Compare prices and book

Find flight deals from Ontario to Pueblo

Most accurate provider

Most trusted provider

Popular in

Cheapest in

Average price

Reviews of airlines servicing Pueblo

Get a feel of what it's like to fly with Southwest,Delta, andUnited 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.

Related info for your journey

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

What are the cheapest airlines to fly from Ontario to Pueblo one-way?

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

How can I find direct flights from Ontario to Pueblo?

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

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Ontario to Pueblo

See prices for flight routes from nearby airports that may be better suited for you.

Complete your trip

Complete your trip to Pueblo by adding a car rental and/or hotel reservation to your travel itinerary.

Search flights from Ontario to Pueblo by cabin class

Find flights from Ontario to Pueblo, based on your preferred cabin class, be it economy, premium economy, business, or first class.

Ontario and Pueblo flights

Browse other Ontario and Pueblo flight options. Last updated on October 4, 2026.

Other flights from Ontario

Browse through other flights departing from Ontario. Flights are based on user searches made on Cheapflights and were last updated on October 4, 2026.

Popular flight searches

Check out other popular destinations found by fellow travelers in 2026

Ontario to Pueblo flights

Consider these flights traveling from Ontario to Pueblo.

Top 3 airlines flying from Ontario to Pueblo

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Cheap flights from Ontario (ONT) to Pueblo, CO

Find cheap flights from Ontario to Pueblo with Cheapflights

1. Tell us where you want to go

2. Select your favorite providers

3. Compare prices and book

Find flight deals from Ontario to Pueblo

Most accurate provider

Most trusted provider

Popular in

Cheapest in

Average price

Reviews of airlines servicing Pueblo

Get a feel of what it's like to fly with Southwest,Delta, andUnited 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.

Related info for your journey

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

What are the cheapest airlines to fly from Ontario to Pueblo one-way?

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

How can I find direct flights from Ontario to Pueblo?

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

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Ontario to Pueblo

See prices for flight routes from nearby airports that may be better suited for you.

Complete your trip

Complete your trip to Pueblo by adding a car rental and/or hotel reservation to your travel itinerary.

Search flights from Ontario to Pueblo by cabin class

Find flights from Ontario to Pueblo, based on your preferred cabin class, be it economy, premium economy, business, or first class.

Ontario and Pueblo flights

Browse other Ontario and Pueblo flight options. Last updated on October 4, 2026.

Other flights from Ontario

Browse through other flights departing from Ontario. Flights are based on user searches made on Cheapflights and were last updated on October 4, 2026.

Popular flight searches

Check out other popular destinations found by fellow travelers in 2026

Ontario to Pueblo flights

Consider these flights traveling from Ontario to Pueblo.

Top 3 airlines flying from Ontario to Pueblo

100% Free

Book with Flexibility

Travel Smart