Cheap flights from St. Louis to Colorado from $74
This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from St. Louis to Colorado departing on 8/9. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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How to get the cheapest flight ticket from St. Louis to Colorado
Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip
What is the cheapest month to fly to Colorado?
The month of September is, on average, the cheapest month to fly to Colorado from St. Louis, with most prices found around $157. The month of August is another great option to travel to Colorado, with average flight prices from St. Louis averaging around $158.
What is the cheapest day to depart on your flight to Colorado?
The cheapest day to depart from St. Louis to Colorado is on a Wednesday when prices can be found for as low as $295. On the other hand, Sunday is the most expensive day to depart from St. Louis because it is more convenient for both business and leisure travelers. As a result, prices tend to be around $414.
What is the cheapest time of day to depart on your flight to Colorado?
The cheapest time of day to fly to Colorado is in the evening when flights can be purchased for as low as $159. In the morning is when there is more demand to fly to Colorado, so prices are often more expensive at around $469 per ticket.
What is the cheapest Lambert-St Louis to Colorado flight route?
Fly from Lambert-St Louis to Denver Intl for the best Lambert-St Louis - Colorado flight prices
How far in advance should I book a flight to Colorado?
You are more likely to see cheaper flights to Colorado from St. Louis when booking 4 weeks ahead of your departure date. In general, you can expect to find flights to Colorado for around $211 when searching 4 weeks out.However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Colorado from St. Louis for as low as $148 on momondo.
What cabin class options are available on Lambert-St Louis to Colorado flights?
There are 4 cabin classes available to choose from on Lambert-St Louis to Colorado flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.
What is the cheapest airline that flies from Lambert-St Louis to Colorado?
Frontier, United Airlines, and American Airlines are the most popular carriers operating from Lambert-St Louis to Colorado
What airlines fly to Colorado?
Frontier, United Airlines and Southwest are the top three most popular airlines that fly to Colorado from St. Louis according to our data. Frontier is the first choice among our users, with 45% of people opting to fly with this airline when traveling to Colorado. Keep in mind that there are 5 different airlines that fly to Colorado on a routine basis, so you have a few additional options to choose from.
How many flights depart from St. Louis to Colorado on average per day?
15 flights are operational daily from St. Louis to Colorado as of June 2025. The most popular departure time for this route is 9:00AM, with 40% of flights per day taking off in the afternoon.
How many flights depart from St. Louis to Colorado on average per week?
The number of flights available between St. Louis and Colorado is 108 per week as of June 2025. The most frequent departure day is Mon, with 19% of weekly flights leaving on this day.
Cheap St. Louis to Colorado flight deals and tips
Find info about flight duration, direct flights, and airports for your flight from St. Louis to Colorado
When did momondo last update prices for flights from Lambert-St Louis Airport to Colorado?
Prices for flights from Lambert-St Louis Airport to Colorado refresh daily.
How many operators does momondo search for flights from Lambert-St Louis Airport to Colorado?
As of June 2025, there are 5 operators available to choose from for flights from Lambert-St Louis Airport to Colorado.
How old do you have to be to fly from Lambert-St Louis Airport to Colorado?
Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Lambert-St Louis Airport to Colorado.
What documentation or ID do you need to fly to Colorado?
The travel and health documents you'll need for your trip to Colorado may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Colorado. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.
What is the most popular plane model from St. Louis to Colorado?
Based on momondo bookings for flights between St. Louis and Colorado, the leading plane model is Boeing 737-800 Passenger/BBJ2 (winglets), making up 16.79% of the total bookings. Other popular models include Boeing 737 MAX 8 with 16.60%, Boeing 737-700 Passenger/BBJ1 (winglets) with 14.52%, and Airbus A319 with 10.81%.
Best airlines flying from St. Louis to Colorado
Compare and see reviews for airlines that fly from St. Louis to Colorado with momondo
| Airline | Rating | Free Cancellation | Price | ||
|---|---|---|---|---|---|
| PriceFrom $45 | Free Cancellation | Rating 5.9 3,299 reviews | |||
| PriceFrom $128 | Free Cancellation | Rating 8.0 7,964 reviews | |||
| PriceFrom $153 | Free Cancellation | Rating 7.4 8,809 reviews | |||
| PriceFrom $184 | Free Cancellation | Rating 8.0 4,278 reviews | |||
| PriceFrom $192 | Free Cancellation | Rating 7.2 10,000 reviews |
Why use momondo?
Why should I use momondo to find a flight deal from St. Louis to Colorado?
momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights from St. Louis to Colorado. Millions of users trust and use momondo every year so you are in good hands.
Can I find flights from St. Louis to Colorado with flexible booking policies on momondo?
All flight searches from St. Louis to Colorado on momondo can be filtered to show those which offer flexible booking policies.
How can momondo help me find flights from St. Louis to Colorado?
Once you have performed a search in the form on the page, momondo provides useful filters and insights. We can show you the cheapest days and times to fly as well as help filter your options to help you make an informed choice when booking flights to Colorado from St. Louis.
I’m not ready to book a flight from St. Louis to Colorado right now. Can momondo alert me if prices change?
Yes. momondo can track prices for St. Louis to Colorado flights and alert you when they change. Perform a search to set up the price alert. All that is required is a valid email address.