Question 1

How many flights depart from Colorado to United States on average per day?

Accepted Answer

200 flights are operational daily from Colorado to United States as of August 2025. The most popular departure time for this route is 11:00AM, with 43% of flights per day taking off at noon.

Question 2

What is the cheapest day to depart on your flight to United States?

Accepted Answer

According to our data, Thursday is the cheapest day to fly to United States from Colorado. The lowest ticket price found for a Thursday departure recently was $340. Keep in mind that prices can always vary depending on your route and whether or not you are flying domestic or international. If your travel schedule is flexible, try to avoid departing on a Sunday because tickets tend to average around $517. These prices are subject to change though, so be sure to set up a Price Alert for flights to United States.

Question 3

How far in advance should I book a flight to United States?

Accepted Answer

You are more likely to see cheaper flights to United States from Colorado when booking weeks ahead of your departure date. In general, you can expect to find flights to United States for around $276 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to United States from Colorado for as low as $208 on momondo.

Question 4

What is the cheapest Colorado to United States flight route?

Accepted Answer

Fly from Denver Intl to Las Vegas Harry Reid Intl for the best Colorado - United States flight prices

Question 5

How many flights depart from Colorado to United States on average per week?

Accepted Answer

As of August 2025, there are 1,401 flights per week flying from Colorado to United States. The most common day of the week flights depart is Mon, with 24% of flights taking off on this day.

Question 6

Can stopping save me money on Colorado to United States flights?

Accepted Answer

No. A direct flight is the cheapest option for a flight between Colorado to United States.

Question 7

What is the cheapest month to fly to United States?

Accepted Answer

In general, September is the cheapest month to fly from Colorado to United States. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $228. If you aren’t able to travel during the month of September, then book flights to United States from Colorado during October instead. Flights to United States in October, while not as cheap as those in September, still average around $243.

Question 8

What airlines fly to United States?

Accepted Answer

Frontier, United Airlines and Southwest are the top three most popular airlines that fly to United States from Colorado according to our data. Frontier is the first choice among our users, with 49% of people opting to fly with this airline when traveling to United States. Keep in mind that there are 10 different airlines that fly to United States on a routine basis, so you have a few additional options to choose from.

Question 9

What is the cheapest time of day to depart on your flight to United States?

Accepted Answer

The cheapest time of day to fly to United States is in the afternoon when flights can be purchased for as low as $268. Try not to purchase tickets at noon because they tend to be around $651. Of course, these prices can vary depending on the time of year and what airport you fly to.

Question 10

What is the cheapest airline that flies from Colorado to United States?

Accepted Answer

Frontier, United Airlines, and Alaska Airlines are the most popular carriers operating from Colorado to United States

Question 11

What cabin class options are available on Colorado to United States flights?

Accepted Answer

There are 4 cabin classes available to choose from on Colorado to United States flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Question 12

How long is the flight from Colorado to United States?

Accepted Answer

Flight times vary depending on what airport in Colorado you fly out of and what airport in United States you fly into. For example, flying from Aspen to Los Angeles takes 2h 16m on average. On the other hand, flying from Montrose to Los Angeles takes 2h 20m on average. Keep in mind that it’s always quicker to opt for a non-stop flight, so be sure to check momondo if there are any available for your route.

Question 13

When did momondo last update prices for flights from Colorado to United States?

Accepted Answer

Prices for flights from Colorado to United States refresh daily.

Question 14

How many operators does momondo search for flights from Colorado to United States?

Accepted Answer

As of August 2025, there are 9 operators available to choose from for flights from Colorado to United States.

Question 15

How old do you have to be to fly from Colorado to United States?

Accepted Answer

The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Colorado to United States.

Question 16

What documentation or ID do you need to fly to United States?

Accepted Answer

The travel and health documents required for your trip to United States can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at United States. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

Airline	Rating	Free Cancellation	Price
Frontier	PriceFrom $38	Free Cancellation	Rating 5.8 3,212 reviews	Search Frontier flights
Allegiant Air	PriceFrom $86	Free Cancellation	Rating 7.2 701 reviews	Search Allegiant Air flights
Delta	PriceFrom $88	Free Cancellation	Rating 8.0 7,981 reviews	Search Delta flights
Southwest	PriceFrom $97	Free Cancellation	Rating 8.0 4,246 reviews	Search Southwest flights
Breeze Airways	PriceFrom $97	Free Cancellation	Rating 8.0 196 reviews	Search Breeze Airways flights
United Airlines	PriceFrom $113	Free Cancellation	Rating 7.4 8,925 reviews	Search United Airlines flights
JetBlue	PriceFrom $128	Free Cancellation	Rating 7.2 2,915 reviews	Search JetBlue flights
American Airlines	PriceFrom $149	Free Cancellation	Rating 7.2 10,000 reviews	Search American Airlines flights
Sun Country Air	PriceFrom $152	Free Cancellation	Rating 6.9 333 reviews	Search Sun Country Air flights
Alaska Airlines	PriceFrom $230	Free Cancellation	Rating 8.0 10,000 reviews	Search Alaska Airlines flights

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How to get the cheapest flight ticket from Colorado to United States

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What is the cheapest month to fly to United States?

What is the cheapest day to depart on your flight to United States?

What is the cheapest time of day to depart on your flight to United States?

The cheapest time of day to fly to United States is in the afternoon when flights can be purchased for as low as $268. Try not to purchase tickets at noon because they tend to be around $651. Of course, these prices can vary depending on the time of year and what airport you fly to.

What is the cheapest Colorado to United States flight route?

Fly from Denver Intl to Las Vegas Harry Reid Intl for the best Colorado - United States flight prices

How far in advance should I book a flight to United States?

What cabin class options are available on Colorado to United States flights?

There are 4 cabin classes available to choose from on Colorado to United States flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Can stopping save me money on Colorado to United States flights?

No. A direct flight is the cheapest option for a flight between Colorado to United States.

What is the cheapest airline that flies from Colorado to United States?

Frontier, United Airlines, and Alaska Airlines are the most popular carriers operating from Colorado to United States

What airlines fly to United States?

How many flights depart from Colorado to United States on average per day?

200 flights are operational daily from Colorado to United States as of August 2025. The most popular departure time for this route is 11:00AM, with 43% of flights per day taking off at noon.

How many flights depart from Colorado to United States on average per week?

As of August 2025, there are 1,401 flights per week flying from Colorado to United States. The most common day of the week flights depart is Mon, with 24% of flights taking off on this day.

How long is the flight from Colorado to United States?

When did momondo last update prices for flights from Colorado to United States?

How many operators does momondo search for flights from Colorado to United States?

How old do you have to be to fly from Colorado to United States?

What documentation or ID do you need to fly to United States?

What is the most popular plane model from Colorado to United States?

Best airlines flying from Colorado to United States

Compare and see reviews for airlines that fly from Colorado to United States with momondo

Why use momondo?

Why should I use momondo to find a flight deal from Colorado to United States?

Can I find flights from Colorado to United States with flexible booking policies on momondo?

How can momondo help me find flights from Colorado to United States?

I’m not ready to book a flight from Colorado to United States right now. Can momondo alert me if prices change?

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