What are the cheapest airlines to fly from St. Louis to Pueblo one-way?

The cheapest airlines for a one-way flight from St. Louis to Pueblo are Frontier ($29), United Airlines ($98), and Southwest ($108).

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 St. Louis to Pueblo?

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

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

When flying from St. Louis to Pueblo, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

What airport do you fly from for flights from St. Louis to Pueblo?

If you book a flight to Pueblo from St. Louis, you will be flying from Lambert-St Louis, which is the city’s only airport. Lambert-St Louis (STL) is located 12.7 mi from the center of St. Louis. There are 11 flights from Lambert-St Louis to Pueblo per day from 3 different airlines.

Can I find deals for flights from St. Louis to Pueblo that include hotel bookings?

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

How can I find direct flights from St. Louis to Pueblo?

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

Can I find deals for business class flights from St. Louis to Pueblo?

Yes. Cheapflights offers flight deals from St. Louis 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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Cheapflights Tip: The best prices from Lambert-St Louis to Pueblo are usually found in January or November, booked 18 days in advance, depart on a Saturday or Wednesday and return on a Saturday

Find flight deals from St. Louis to Pueblo

Most accurate provider	FlightHub 3 stars
Most trusted provider	FlightHub 3 stars
Popular in	June
Cheapest in	January
Average price	$278

Provider with most accurate pricing for Lambert-St Louis-Denver Intl flight deals.

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Provider most trusted by Cheapflights users for Lambert-St Louis-Denver Intl flights.

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Highest demand for flights based on searches. 15% potential increase in price ($49 potential increase over avg. RT price).

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Cheapest flight prices on average. 2% potential price decrease ($7 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

Read reviews from past customers who have flown Southwest,United Airlines, andFrontier from St. Louis to Pueblo. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.

Southwest

7.9

Good

4,210 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

7.9

Good

4,210 reviews

Southwest

7.9

Good

4,210 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

7.3

Good

10,390 reviews

Southwest

7.9

Good

4,210 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

5.5

Fair

2,525 reviews

Southwest

7.9

Good

4,210 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 St. Louis to Pueblo?
If you book a flight to Pueblo from St. Louis, you will be flying from Lambert-St Louis, which is the city’s only airport. Lambert-St Louis (STL) is located 12.7 mi from the center of St. Louis. There are 11 flights from Lambert-St Louis to Pueblo per day from 3 different airlines.
What are the cheapest airlines to fly from St. Louis to Pueblo one-way?
The cheapest airlines for a one-way flight from St. Louis to Pueblo are Frontier ($29), United Airlines ($98), and Southwest ($108).
Can I find deals for flights from St. Louis to Pueblo that include hotel bookings?
Yes. In addition to deals on St. Louis to Pueblo flights, Cheapflights offers vacation packages that include both flights and hotel.
How can I find direct flights from St. Louis to Pueblo?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from St. Louis to Pueblo.
Can I find deals for business class flights from St. Louis to Pueblo?
Yes. Cheapflights offers flight deals from St. Louis 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 St. Louis to Pueblo

Airline	Cheapest	Average	Flexibility	On-time
Southwest	Cheapest$236	Average$382	FlexibilityNo cancel fee	On-time63%
American Airlines	Cheapest$276	Average$566	FlexibilityNo cancel fee	On-time71%
United Airlines	Cheapest$276	Average$382	FlexibilityNo cancel fee	On-time69%

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Find cheap flights from St. Louis 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 St. Louis to Pueblo

Most accurate provider

Most trusted provider

Popular in

Cheapest in

Average price

Reviews of airlines servicing Pueblo

Read reviews from past customers who have flown Southwest,United Airlines, andFrontier from St. Louis to Pueblo. Users can see the overall rating for each airline as well as how each is rated 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 St. Louis to Pueblo?

What are the cheapest airlines to fly from St. Louis to Pueblo one-way?

Can I find deals for flights from St. Louis to Pueblo that include hotel bookings?

How can I find direct flights from St. Louis to Pueblo?

Can I find deals for business class flights from St. Louis 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 St. Louis 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 St. Louis to Pueblo by cabin class

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

St. Louis and Pueblo flights

Browse other St. Louis and Pueblo flight options. Last updated on October 19, 2026.

Other flights from St. Louis

Browse through other flights departing from St. Louis. Flights are based on user searches made on Cheapflights and were last updated on October 19, 2026.

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St. Louis to Pueblo flights

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Top 3 airlines flying from St. Louis to Pueblo

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Cheap flights from St. Louis (STL) to Pueblo, CO

Find cheap flights from St. Louis 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 St. Louis to Pueblo

Most accurate provider

Most trusted provider

Popular in

Cheapest in

Average price

Reviews of airlines servicing Pueblo

Read reviews from past customers who have flown Southwest,United Airlines, andFrontier from St. Louis to Pueblo. Users can see the overall rating for each airline as well as how each is rated 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 St. Louis to Pueblo?

What are the cheapest airlines to fly from St. Louis to Pueblo one-way?

Can I find deals for flights from St. Louis to Pueblo that include hotel bookings?

How can I find direct flights from St. Louis to Pueblo?

Can I find deals for business class flights from St. Louis 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 St. Louis 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 St. Louis to Pueblo by cabin class

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

St. Louis and Pueblo flights

Browse other St. Louis and Pueblo flight options. Last updated on October 19, 2026.

Other flights from St. Louis

Browse through other flights departing from St. Louis. Flights are based on user searches made on Cheapflights and were last updated on October 19, 2026.

Popular flight searches

Check out other popular destinations found by fellow travelers in 2026

St. Louis to Pueblo flights

Consider these flights traveling from St. Louis to Pueblo.

Top 3 airlines flying from St. Louis to Pueblo

100% Free

Book with Flexibility

Travel Smart