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St. Louis

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

DEN — STL
Nov 22 — Nov 291
Sun 11/22
Sun 11/29
1 adult, Economy
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Cheapflights Tip: The best prices from Breckenridge to Lambert-St Louis are usually found in January or February, booked 51 days in advance, depart on a Saturday or Friday and return on a Saturday

Find flight deals from Breckenridge to St. Louis

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Popular in

June

Cheapest in

January

Average price

$305
Provider with most accurate pricing for Denver Intl-Lambert-St Louis flight deals.
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Provider most trusted by Cheapflights users for Denver Intl-Lambert-St Louis flights.
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Highest demand for flights based on searches. 9% potential increase in price ($30 potential increase over avg. RT price).
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Cheapest flight prices on average. 1% potential price decrease ($5 potential savings vs. average RT price).
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Average for round-trip flights in October 2026
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Cheapflights Insights

Everything you need to know about your flight from Breckenridge to St. Louis

What is the cheapest time of day to fly from BK9 to STL?

One of the essential ways to save on airfare from Breckenridge to St. Louis is to remain as flexible as possible. Flights that are at noon tend to be the most expensive. A flight in the afternoon could potentially save you up to 24% on airfare.

What is the cheapest day to fly from Breckenridge to St. Louis?

Travelers seeking maximum savings on their Breckenridge to St. Louis flight should consider departing on Saturday afternoons when fares are most often at their lowest. Monday at noon flights should be avoided if possible as fares are typically the most expensive at this time.

Reviews of airlines servicing St. Louis

Read reviews from past customers who have flown Southwest,United Airlines, andFrontier from Breckenridge to St. Louis. 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
4,219 reviews

Boarding

8.1

Crew

8.6

Overall

7.9

Entertainment

7.4

Food

7.0

Comfort

8.0

Reviews

1 / 20
10.0
Excellent

Courtney,Sep 2026

DEN - STL

I still think the aircraft should load from the back and window seats first for all passengers. It's so much easier and efficient to board when you do not have to worry about hitting Anyone already seated.
Southwest
7.9
Good
4,219 reviews
Southwest
7.9
Good
4,219 reviews

Boarding

8.1

Crew

8.6

Overall

7.9

Entertainment

7.4

Food

7.0

Comfort

8.0

Reviews

1 / 20
10.0
Excellent

Courtney,Sep 2026

DEN - STL

I still think the aircraft should load from the back and window seats first for all passengers. It's so much easier and efficient to board when you do not have to worry about hitting Anyone already seated.
United Airlines
7.3
Good
10,422 reviews
Southwest
7.9
Good
4,219 reviews

Boarding

8.1

Crew

8.6

Overall

7.9

Entertainment

7.4

Food

7.0

Comfort

8.0

Reviews

1 / 20
10.0
Excellent

Courtney,Sep 2026

DEN - STL

I still think the aircraft should load from the back and window seats first for all passengers. It's so much easier and efficient to board when you do not have to worry about hitting Anyone already seated.
Frontier
5.5
Fair
2,519 reviews
Southwest
7.9
Good
4,219 reviews

Boarding

8.1

Crew

8.6

Overall

7.9

Entertainment

7.4

Food

7.0

Comfort

8.0

Reviews

1 / 20
10.0
Excellent

Courtney,Sep 2026

DEN - STL

I still think the aircraft should load from the back and window seats first for all passengers. It's so much easier and efficient to board when you do not have to worry about hitting Anyone already seated.

Related info for your journey

  • What airport do you fly into for flights to St. Louis from Breckenridge?

    Located just 12.7 mi from the city center, Lambert-St Louis is the airport most travelers will use when flying to St. Louis from Breckenridge. Booking flights from Breckenridge to Lambert-St Louis (STL) should be relatively easy as there are 8 daily inbound flights from Breckenridge from 3 different airlines.

  • How popular is this Breckenridge to St. Louis flight route?

    Within the past month, 18 users have taken a look at flights from Breckenridge to Lambert-St Louis.

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

    To fly one-way, consider booking your trip with Frontier, which is currently one of the cheapest options available, starting at $40. United Airlines flights start at $106 while deals on Southwest start at $106 one-way.

  • What are the most reliable airlines from Breckenridge to St. Louis?

    The top 3 most reliable airlines when flying from Breckenridge to St. Louis are Frontier (92%), Volaris (83%) and Air Canada (75%).

  • What are the cheapest flights from Breckenridge to St. Louis?

    Looking at all options, your cheapest flight can be booked for $88. While the most popular route (Denver Intl - Lambert-St Louis) can be booked for $145 on average, our data indicates $335 when flying from Breckenridge to St. Louis.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Breckenridge to St. Louis by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

See more FAQs

Traveling to a place near St. Louis?

Book flights to St. Louis if you plan to visit one of these locations
Fairview Heights
O'Fallon
Fenton
Swansea
Eureka
Wentzville
Maryland Heights
Chesterfield
Collinsville
Edwardsville
Glencoe

Browse thousands of different options on Cheapflights for your next trip

Top 3 airlines flying from Breckenridge to St. Louis

AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$61Average$209FlexibilityNo cancel feeOn-time62%
United AirlinesCheapest$197Average$422FlexibilityNo cancel feeOn-time69%
SouthwestCheapest$199Average$363FlexibilityNo cancel feeOn-time63%

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