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St. Louis

$40+ Cheap flights from Breckenridge, CO to St. Louis (STL)

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 3/18. Fares are subject to change and may not be available on all flights or dates of travel.
DEN — STL
Feb 28 — Mar 71
Sat 2/28
Sat 3/7
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 74 days in advance, depart on a Friday or Saturday and return on a Wednesday

Cheap flight deals from Breckenridge to St. Louis

Cheapest flights from Breckenridge to St. Louis
Explore the most affordable flight options available from Breckenridge to St. Louis. Find the lowest fares from popular airlines and budget airlines, with prices last updated on January 29, 2026.

This Super.com deal was found by Cheapflights users on 1/28. 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 Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 2/2010:01 am
DEN
-
STL
Nonstop2h 08m
Frontier
Mon 2/231:54 pm
STL
-
DEN
Nonstop2h 36m
Frontier
Deal found 1/28$79
This Frontier deal was found by Cheapflights users on 1/27. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 2/63:38 pm
DEN
-
STL
Nonstop2h 06m
Frontier
Sun 2/812:03 pm
STL
-
DEN
Nonstop2h 33m
Frontier
Deal found 1/27$81
This Kiwi.com deal was found by Cheapflights users on 1/27. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 2/2810:48 am
DEN
-
STL
Nonstop2h 08m
Frontier
Mon 3/28:22 pm
STL
-
DEN
1 stop16h 34m
Frontier
Deal found 1/27$84
This Frontier deal was found by Cheapflights users on 1/28. 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.
Sat 3/146:35 am
DEN
-
STL
Nonstop2h 14m
Frontier
Sat 3/218:12 pm
STL
-
DEN
Nonstop2h 37m
Frontier
Deal found 1/28$85
This Super.com deal was found by Cheapflights users on 1/27. 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 Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/16:40 am
DEN
-
STL
Nonstop2h 08m
Frontier
Sat 4/48:16 pm
STL
-
DEN
Nonstop2h 33m
Frontier
Deal found 1/27$87
This Frontier deal was found by Cheapflights users on 1/28. 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.
Sat 2/2110:48 am
DEN
-
STL
Nonstop2h 08m
Frontier
Sat 2/282:51 pm
STL
-
DEN
Nonstop2h 27m
Frontier
Deal found 1/28$88
This Frontier deal was found by Cheapflights users on 1/28. 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.
Sat 3/146:35 am
DEN
-
STL
Nonstop2h 14m
Frontier
Fri 3/208:12 pm
STL
-
DEN
Nonstop2h 37m
Frontier
Deal found 1/28$89
This Cheapflightsfares deal was found by Cheapflights users on 1/28. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 2/2512:48 pm
DEN
-
STL
Nonstop2h 05m
Frontier
Wed 3/48:17 pm
STL
-
DEN
1 stop12h 22m
Frontier
Deal found 1/28$92
This Cheapflightsfares deal was found by Cheapflights users on 1/27. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 2/2110:48 am
DEN
-
STL
Nonstop2h 08m
Frontier
Wed 2/254:51 pm
STL
-
DEN
Nonstop2h 34m
Frontier
Deal found 1/27$93
This Orbitz deal was found by Cheapflights users on 1/26. 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 Orbitz is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 2/1110:50 am
DEN
-
STL
Nonstop2h 08m
Frontier
Wed 2/188:17 pm
STL
-
DEN
1 stop12h 22m
Frontier
Deal found 1/26$98

Find flight deals from Breckenridge to St. Louis

Keep the following information in mind while searching for Breckenridge to St. Louis flight deals. Data was last updated January 29, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$79
(Super.com)

One-way from

$40
(Expedia)

Popular in

June

Cheapest in

January

Average price

$181
Provider with most accurate pricing for Denver Intl-Lambert-St Louis flight deals.
Search Deals
Provider most trusted by Cheapflights users for Denver Intl-Lambert-St Louis flights.
Search Deals
From Breckenridge to Lambert-St Louis
Search Deals
One-way flight from Breckenridge to Lambert-St Louis
Search Deals
Highest demand for flights based on searches. 8% potential increase in price ($21 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($6 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in January 2026
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Breckenridge to St. Louis 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 January 29, 2026.
Use the filters below to find and compare flights from Breckenridge to St. Louis that are best for you.

Fly from

Breckenridge

Fly to

St. Louis

Route

Depart

Return

Price

DenverSt. Louis

DEN - STL

DENSTL

Denver Intl

Fri 2/20

10:01 am-1:09 pm

Nonstop2h 08m

Lambert-St Louis

Mon 2/23

8:47 pm-7:54 am

1 stop12h 07m

$114

DenverSt. Louis

DEN - STL

DENSTL

Denver Intl

Mon 3/23

6:35 am-9:49 am

Nonstop2h 14m

Lambert-St Louis

Fri 3/27

8:12 pm-9:49 pm

Nonstop2h 37m

$118

DenverSt. Louis

DEN - STL

DENSTL

Denver Intl

Wed 2/25

8:00 pm-6:51 am

2 stops33h 51m

Lambert-St Louis

Wed 3/4

5:18 pm-6:53 pm

Nonstop2h 35m

$123

DenverSt. Louis

DEN - STL

DENSTL

Denver Intl

Fri 2/20

10:01 am-1:09 pm

Nonstop2h 08m

Lambert-St Louis

Mon 2/23

8:22 pm-11:14 am

2 stops15h 52m

$139

DenverSt. Louis

DEN - STL

DENSTL

Denver Intl

Wed 2/11

10:29 pm-9:26 pm

1 stop21h 57m

Lambert-St Louis

Wed 2/18

8:17 pm-7:39 am

1 stop12h 22m

$144

DenverSt. Louis

DEN - STL

DENSTL

Denver Intl

Fri 2/27

11:49 am-12:27 am

2 stops11h 38m

Lambert-St Louis

Wed 3/4

5:18 pm-6:53 pm

Nonstop2h 35m

$156

DenverSt. Louis

DEN - STL

DENSTL

Denver Intl

Sat 3/7

6:35 am-9:49 am

Nonstop2h 14m

Lambert-St Louis

Mon 3/9

7:47 am-9:34 pm

2 stops14h 47m

$162

DenverSt. Louis

DEN - STL

DENSTL

Denver Intl

Fri 3/13

6:35 am-9:49 am

Nonstop2h 14m

Lambert-St Louis

Sun 3/15

8:06 pm-3:56 am

1 stop8h 50m

$167

DenverSt. Louis

DEN - STL

DENSTL

Denver Intl

Wed 4/15

11:59 pm-10:30 am

1 stop9h 31m

Lambert-St Louis

Sun 5/3

8:12 pm-9:45 pm

Nonstop2h 33m

$198

DenverSt. Louis

DEN - STL

DENSTL

Denver Intl

Sat 2/21

10:10 am-1:14 pm

Nonstop2h 04m

Lambert-St Louis

Mon 2/23

4:30 pm-6:05 pm

Nonstop2h 35m

$217

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/27

Showing 1-10 of 21 results
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Best time to book a flight from Breckenridge to St. Louis

Have a flexible travel schedule? Discover the best time to fly to St. Louis from Breckenridge 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 Breckenridge to St. Louis

How far ahead should I book a flight from Breckenridge to St. Louis?

Use this chart to determine the optimal time to book a round-trip flight from Breckenridge to St. Louis. Price data was last updated on January 23, 2026.

To ensure you get the cheapest price possible for a flight from Breckenridge to St. Louis, you should look to book at least 74 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.

What is the cheapest month to book a flight from Breckenridge to St. Louis?

Currently, February is the cheapest month in which you can book a flight from Breckenridge to St. Louis (average of $37). Flying from Breckenridge to St. Louis in July is currently the most expensive (average of $129). 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 BK9 to STL?

Find hourly flight availability from Breckenridge to St. Louis. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated January 29, 2026.

One of the essential ways to save on airfare from Breckenridge to St. Louis is to remain as flexible as possible. Flights that are in the afternoon tend to be the most expensive. A flight in the morning could potentially save you up to 15% on airfare.

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

Use this chart to determine the cheapest time to fly round-trip from Breckenridge to St. Louis. Price data was last updated on January 24, 2026.

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

Weekly flight availability from Breckenridge to St. Louis

Explore weekly flight availability from Breckenridge to St. Louis. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated January 29, 2026.

The most flights from BK9 to STL are scheduled on a Wednesday (12 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (5 on average).

Reviews of airlines servicing St. Louis

Get insights into the airlines that provide service to St. Louis. 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 St. Louis. Reviews last updated January 29, 2026.
Read reviews from past customers who have flown Southwest, United Airlines, and Frontier 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
8.0
Very good
4,267 reviews

Boarding

8.1

Food

7.0

Overall

8.0

Crew

8.6

Entertainment

7.5

Comfort

8.0

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
4,267 reviews
Southwest
8.0
Very good
4,267 reviews

Boarding

8.1

Food

7.0

Overall

8.0

Crew

8.6

Entertainment

7.5

Comfort

8.0

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
9,215 reviews
Southwest
8.0
Very good
4,267 reviews

Boarding

8.1

Food

7.0

Overall

8.0

Crew

8.6

Entertainment

7.5

Comfort

8.0

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
5.7
Fair
3,056 reviews
Southwest
8.0
Very good
4,267 reviews

Boarding

8.1

Food

7.0

Overall

8.0

Crew

8.6

Entertainment

7.5

Comfort

8.0

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

Find useful and relevant information for your journey from Breckenridge to St. Louis. 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 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 9 daily inbound flights from Breckenridge from 3 different airlines.

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

    Within the past month, 30 users have taken a look at flights from Breckenridge to Lambert-St Louis.

  • How long is the flight from Breckenridge to St. Louis?

    For as low as $114, Frontier can have you in St. Louis from Breckenridge in 2h 08m. Breckenridge and St. Louis are separated by a distance of 767 mi. Generally, flights for this route are nonstop.

  • 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 $29. Southwest flights start at $84 while deals on United Airlines start at $111 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 SkyWest Airlines (100%), Frontier (88%) and Southwest (78%).

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

    Looking at all options, your cheapest flight can be booked for $43. While the most popular route (Denver Intl - Lambert-St Louis) can be booked for $116 on average, our data indicates $236 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.

  • What is the cheapest month to book a flight from Breckenridge to St. Louis?

    Currently, February is the cheapest month in which you can book a flight from Breckenridge to St. Louis (average of $37). Flying from Breckenridge to St. Louis in July is currently the most expensive (average of $129). 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

Traveling to a place near St. Louis?

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

Browse thousands of different options on Cheapflights for your next trip

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Alternative routes for Breckenridge to St. Louis

See prices for flight routes from nearby airports that may be better suited for you.
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Top 3 airlines flying from Breckenridge to St. Louis

Discover the top 3 airlines that operate flights from Breckenridge to St. Louis. 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 January 29, 2026.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$52Average$158FlexibilityNo cancel feeOn-time62%
United AirlinesCheapest$154Average$387FlexibilityNo cancel feeOn-time69%
SouthwestCheapest$177Average$347FlexibilityNo cancel feeOn-time63%

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