What airlines fly to United States?

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 48% of people opting to fly with this airline when traveling to United States. Keep in mind that there are 9 different airlines that fly to United States on a routine basis, so you have a few additional options to choose from.

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

319 flights are operational daily from Colorado to United States as of September 2026. The most popular departure time for this route is 1:00PM, with 43% of flights per day taking off at noon.

How long is the flight from Colorado to United States?

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 21m on average. On the other hand, flying from Denver to Los Angeles takes 2h 24m 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.

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

As of September 2026, there are 2,237 flights per week flying from Colorado to United States. The most common day of the week flights depart is Sun, with 19% of flights taking off on this day.

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

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

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

Prices for flights from Colorado to United States refresh daily.

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

As of September 2026, there are 7 operators available to choose from for flights from Colorado to United States.

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

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.

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

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.

$68 Cheap Flights from Colorado to the United States in 2026/27

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from Colorado to the United States

Round-trip

One-way

Last minute

Direct

Cheap round-trip flights

Enter your travel dates to find the best prices.

10:55 pm - 12:29 amDEN Denver Intl-LAX Los Angeles Los Angeles

2h 34mnonstop

11:40 am - 3:14 pmLAX Los Angeles Los Angeles-DEN Denver Intl

2h 34mnonstop

$84Frontier

Tue, Oct 20 - Thu, Oct 22

2:22 pm - 3:55 pmDEN Denver Intl-LAX Los Angeles Los Angeles

2h 33mnonstop

11:53 am - 3:22 pmLAX Los Angeles Los Angeles-DEN Denver Intl

2h 29mnonstop

$84Frontier

Thu, Feb 25 - Mon, Mar 1

5:57 pm - 11:31 pmDEN Denver Intl-LAX Los Angeles Los Angeles

6h 34m1 stop Seattle/Tacoma Intl

11:40 am - 3:14 pmLAX Los Angeles Los Angeles-DEN Denver Intl

2h 34mnonstop

$128Multiple Airlines

Wed, Oct 21 - Thu, Oct 22

7:53 am - 1:24 pmDEN Denver Intl-LAX Los Angeles Los Angeles

6h 31m1 stop Portland

11:40 am - 3:14 pmLAX Los Angeles Los Angeles-DEN Denver Intl

2h 34mnonstop

$128Multiple Airlines

Tue, Oct 20 - Thu, Oct 22

7:03 am - 3:04 pmDEN Denver Intl-LAS Las Vegas Harry Reid Intl

9h 01m1 stop Seattle/Tacoma Intl

12:37 pm - 7:19 pmLAS Las Vegas Harry Reid Intl-DEN Denver Intl

5h 42m1 stop San Diego

$154Alaska Airlines

Tue, Nov 3 - Tue, Nov 10

1:40 pm - 3:05 pmDEN Denver Intl-LAX Los Angeles Los Angeles

2h 25mnonstop

5:40 pm - 9:00 pmLAX Los Angeles Los Angeles-DEN Denver Intl

2h 20mnonstop

$157Southwest

Sat, Nov 7 - Mon, Nov 9

5:25 pm - 6:55 pmDEN Denver Intl-LAX Los Angeles Los Angeles

2h 30mnonstop

7:40 pm - 11:00 pmLAX Los Angeles Los Angeles-DEN Denver Intl

2h 20mnonstop

$157Southwest

Tue, Oct 20 - Tue, Oct 27

7:09 am - 9:20 amDEN Denver Intl-LAX Los Angeles Los Angeles

3h 11mnonstop

6:39 pm - 10:09 pmLAX Los Angeles Los Angeles-DEN Denver Intl

2h 30mnonstop

$157American Airlines

Tue, Nov 3 - Mon, Nov 9

7:59 pm - 9:46 pmDEN Denver Intl-LAX Los Angeles Los Angeles

2h 47mnonstop

8:33 pm - 11:59 pmLAX Los Angeles Los Angeles-DEN Denver Intl

2h 26mnonstop

$157American Airlines

Mon, Dec 21 - Thu, Dec 31

12:00 pm - 7:24 pmDEN Denver Intl-LAS Las Vegas Harry Reid Intl

8h 24m1 stop Seattle/Tacoma Intl

6:00 am - 12:47 pmLAS Las Vegas Harry Reid Intl-DEN Denver Intl

5h 47m1 stop San Diego

$169Alaska Airlines

Tue, Jan 19 - Wed, Jan 27

Cheap last minute flights

Enter your travel dates to find the best prices.

1:10 pm - 2:39 pmDEN Denver Intl-LAX Los Angeles Los Angeles

2h 29mnonstop

5:20 pm - 11:44 pmLAX Los Angeles Los Angeles-DEN Denver Intl

5h 24m1 stop Las Vegas Harry Reid Intl

$113Frontier

Tue, Sep 22 - Sat, Sep 26

9:07 am - 1:06 pmDEN Denver Intl-LAX Los Angeles Los Angeles

4h 59m1 stop Salt Lake City

11:36 am - 3:05 pmLAX Los Angeles Los Angeles-DEN Denver Intl

2h 29mnonstop

$148Frontier

Wed, Sep 23 - Sun, Sep 27

10:29 pm - 1:11 pmDEN Denver Intl-LAS Las Vegas Harry Reid Intl

15h 42m1 stop San Francisco

5:28 pm - 11:44 pmLAS Las Vegas Harry Reid Intl-DEN Denver Intl

5h 16m1 stop San Diego

$300Multiple Airlines

Sat, Sep 26 - Thu, Oct 1

1:10 pm - 2:39 pmDEN Denver Intl-LAX Los Angeles Los Angeles

2h 29mnonstop

11:05 am - 6:32 pmLAX Los Angeles Los Angeles-DEN Denver Intl

6h 27m1 stop Portland

$308Multiple Airlines

Tue, Sep 22 - Sat, Sep 26

9:00 am - 2:00 pmDEN Denver Intl-LAX Los Angeles Los Angeles

6h 00m2 stops Tucson Las Vegas Harry Reid Intl

5:20 am - 10:45 amLAX Los Angeles Los Angeles-DEN Denver Intl

4h 25m1 stop Las Vegas Harry Reid Intl

$320Southwest

Wed, Sep 23 - Wed, Oct 14

5:45 pm - 7:19 pmDEN Denver Intl-LAX Los Angeles Los Angeles

2h 34mnonstop

5:00 am - 8:24 amLAX Los Angeles Los Angeles-DEN Denver Intl

2h 24mnonstop

$347United Airlines

Wed, Sep 23 - Mon, Oct 12

8:08 am - 1:12 pmDEN Denver Intl-LAX Los Angeles Los Angeles

6h 04m1 stop Portland

1:10 pm - 10:37 pmLAX Los Angeles Los Angeles-DEN Denver Intl

8h 27m1 stop Seattle/Tacoma Intl

$384Alaska Airlines

Sun, Sep 27 - Tue, Oct 6

4:40 pm - 5:35 pmDEN Denver Intl-LAS Las Vegas Harry Reid Intl

1h 55mnonstop

9:40 pm - 12:35 amLAS Las Vegas Harry Reid Intl-DEN Denver Intl

1h 55mnonstop

$407Southwest

Thu, Sep 24 - Thu, Oct 1

9:53 am - 3:47 pmDEN Denver Intl-LGA New York LaGuardia

3h 54mnonstop

7:29 am - 9:46 amLGA New York LaGuardia-DEN Denver Intl

4h 17mnonstop

$419United Airlines

Fri, Sep 25 - Tue, Oct 6

8:08 am - 1:12 pmDEN Denver Intl-LAX Los Angeles Los Angeles

6h 04m1 stop Portland

12:57 pm - 10:12 pmLAX Los Angeles Los Angeles-DEN Denver Intl

8h 15m2 stops San Francisco San Diego

$439Alaska Airlines

Sun, Sep 27 - Tue, Oct 6

Cheap direct flights

Enter your travel dates to find the best prices.

10:55 pm - 12:29 amDEN Denver Intl-LAX Los Angeles Los Angeles

2h 34mnonstop

11:40 am - 3:14 pmLAX Los Angeles Los Angeles-DEN Denver Intl

2h 34mnonstop

$84Frontier

Tue, Oct 20 - Thu, Oct 22

2:22 pm - 3:55 pmDEN Denver Intl-LAX Los Angeles Los Angeles

2h 33mnonstop

11:53 am - 3:22 pmLAX Los Angeles Los Angeles-DEN Denver Intl

2h 29mnonstop

$84Frontier

Thu, Feb 25 - Mon, Mar 1

1:07 pm - 3:12 pmDEN Denver Intl-SEA Seattle/Tacoma Intl

3h 05mnonstop

6:54 pm - 10:37 pmSEA Seattle/Tacoma Intl-DEN Denver Intl

2h 43mnonstop

$146Multiple Airlines

Sat, Oct 24 - Tue, Oct 27

1:04 pm - 3:12 pmDEN Denver Intl-SEA Seattle/Tacoma Intl

3h 08mnonstop

7:23 am - 11:14 amSEA Seattle/Tacoma Intl-DEN Denver Intl

2h 51mnonstop

$146Multiple Airlines

Wed, Nov 11 - Tue, Nov 17

1:40 pm - 3:05 pmDEN Denver Intl-LAX Los Angeles Los Angeles

2h 25mnonstop

5:40 pm - 9:00 pmLAX Los Angeles Los Angeles-DEN Denver Intl

2h 20mnonstop

$157Southwest

Sat, Nov 7 - Mon, Nov 9

5:25 pm - 6:55 pmDEN Denver Intl-LAX Los Angeles Los Angeles

2h 30mnonstop

7:40 pm - 11:00 pmLAX Los Angeles Los Angeles-DEN Denver Intl

2h 20mnonstop

$157Southwest

Tue, Oct 20 - Tue, Oct 27

7:09 am - 9:20 amDEN Denver Intl-LAX Los Angeles Los Angeles

3h 11mnonstop

6:39 pm - 10:09 pmLAX Los Angeles Los Angeles-DEN Denver Intl

2h 30mnonstop

$157American Airlines

Tue, Nov 3 - Mon, Nov 9

7:59 pm - 9:46 pmDEN Denver Intl-LAX Los Angeles Los Angeles

2h 47mnonstop

8:33 pm - 11:59 pmLAX Los Angeles Los Angeles-DEN Denver Intl

2h 26mnonstop

$157American Airlines

Mon, Dec 21 - Thu, Dec 31

12:36 pm - 2:02 pmDEN Denver Intl-LAX Los Angeles Los Angeles

2h 26mnonstop

8:33 pm - 11:59 pmLAX Los Angeles Los Angeles-DEN Denver Intl

2h 26mnonstop

$157Delta

Sat, Nov 7 - Mon, Nov 9

7:00 am - 8:40 amDEN Denver Intl-LAX Los Angeles Los Angeles

2h 40mnonstop

7:35 pm - 11:00 pmLAX Los Angeles Los Angeles-DEN Denver Intl

2h 25mnonstop

$157Delta

Thu, Dec 24 - Mon, Jan 11

Save money when you book flights with momondo

Big names and deals

Search 100s of travel sites to compare prices.

Filter for what you want

Free Wi-Fi? Stopover? Instantly customize your results.

Trusted and free

We’re completely free to use - no hidden charges or fees.

Price Alerts

Not ready to book? to track prices.

Search flight deals

Frontier flights from Colorado to United States

Our best Frontier deals on Colorado to United States flight tickets

Frontier

Oct 20

DEN10:55 pmDenver Intl

2h 34m

LAX12:29 amLos Angeles Los Angeles

Oct 22

LAX11:40 amLos Angeles Los Angeles

2h 34m

DEN3:14 pmDenver Intl

$84

Frontier

Oct 24

DEN3:00 pmDenver Intl

4h 17m

1 stop

LAX6:17 pmLos Angeles Los Angeles

Oct 28

LAX11:42 amLos Angeles Los Angeles

2h 29m

DEN3:11 pmDenver Intl

$86

Frontier

Oct 14

DEN10:55 pmDenver Intl

2h 34m

LAX12:29 amLos Angeles Los Angeles

Oct 20

LAX9:15 amLos Angeles Los Angeles

26h 33m

1 stop

DEN12:48 pmDenver Intl

$87

Southwest flights from Colorado to United States

Our best Southwest deals on Colorado to United States flight tickets

Southwest

Oct 3

DEN7:25 amDenver Intl

2h 05m

LAS8:30 amLas Vegas Harry Reid Intl

Oct 6

LAS3:00 pmLas Vegas Harry Reid Intl

1h 55m

DEN5:55 pmDenver Intl

$169

Southwest

Oct 3

DEN7:25 amDenver Intl

2h 05m

LAS8:30 amLas Vegas Harry Reid Intl

Oct 5

LAS10:40 pmLas Vegas Harry Reid Intl

2h 00m

DEN1:40 amDenver Intl

$201

Southwest

Oct 3

DEN7:25 amDenver Intl

2h 05m

LAS8:30 amLas Vegas Harry Reid Intl

Oct 3

LAS2:55 pmLas Vegas Harry Reid Intl

1h 55m

DEN5:50 pmDenver Intl

$204

momondo Fare Finder

Use the filters below to find and compare flights from Colorado to the United States that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

DenverLos Angeles

DEN Denver Intl - LAX Los Angeles Los Angeles

DENLAX

Denver Intl

Tue 10/20

10:55 pm-12:29 am

Nonstop2h 34m

Los Angeles Los Angeles

Thu 10/22

11:40 am-3:14 pm

Nonstop2h 34m

$84

DenverLos Angeles

DEN Denver Intl - LAX Los Angeles Los Angeles

DENLAX

Denver Intl

Thu 2/25

2:22 pm-3:55 pm

Nonstop2h 33m

Los Angeles Los Angeles

Mon 3/1

11:53 am-3:22 pm

Nonstop2h 29m

$84

DenverLos Angeles

DEN Denver Intl - LAX Los Angeles Los Angeles

DENLAX

Denver Intl

Wed 10/21

5:57 pm-11:31 pm

1 stop6h 34m

Los Angeles Los Angeles

Thu 10/22

11:40 am-3:14 pm

Nonstop2h 34m

$128

DenverLos Angeles

DEN Denver Intl - LAX Los Angeles Los Angeles

DENLAX

Denver Intl

Tue 10/20

7:53 am-1:24 pm

1 stop6h 31m

Los Angeles Los Angeles

Thu 10/22

11:40 am-3:14 pm

Nonstop2h 34m

$128

DenverLas Vegas

DEN Denver Intl - LAS Las Vegas Harry Reid Intl

DENLAS

Denver Intl

Tue 11/3

7:03 am-3:04 pm

1 stop9h 01m

Las Vegas Harry Reid Intl

Tue 11/10

12:37 pm-7:19 pm

1 stop5h 42m

$154

Quickest round-trip

DenverLos Angeles

DEN Denver Intl - LAX Los Angeles Los Angeles

DENLAX

Denver Intl

Sat 11/7

1:40 pm-3:05 pm

Nonstop2h 25m

Los Angeles Los Angeles

Mon 11/9

5:40 pm-9:00 pm

Nonstop2h 20m

$157

DenverLos Angeles

DEN Denver Intl - LAX Los Angeles Los Angeles

DENLAX

Denver Intl

Tue 10/20

5:25 pm-6:55 pm

Nonstop2h 30m

Los Angeles Los Angeles

Tue 10/27

7:40 pm-11:00 pm

Nonstop2h 20m

$157

DenverLos Angeles

DEN Denver Intl - LAX Los Angeles Los Angeles

DENLAX

Denver Intl

Tue 11/3

7:09 am-9:20 am

Nonstop3h 11m

Los Angeles Los Angeles

Mon 11/9

6:39 pm-10:09 pm

Nonstop2h 30m

$157

DenverLos Angeles

DEN Denver Intl - LAX Los Angeles Los Angeles

DENLAX

Denver Intl

Mon 12/21

7:59 pm-9:46 pm

Nonstop2h 47m

Los Angeles Los Angeles

Thu 12/31

8:33 pm-11:59 pm

Nonstop2h 26m

$157

DenverLas Vegas

DEN Denver Intl - LAS Las Vegas Harry Reid Intl

DENLAS

Denver Intl

Tue 1/19

12:00 pm-7:24 pm

1 stop8h 24m

Las Vegas Harry Reid Intl

Wed 1/27

6:00 am-12:47 pm

1 stop5h 47m

$169

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

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

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

Prices

Airlines

Other information

What is the cheapest month to fly to United States?

In general, January 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 $270. If you aren’t able to travel during the month of January, then book flights to United States from Colorado during February instead. Flights to United States in February, while not as cheap as those in January, still average around $283.

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

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 $374. 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 $533. These prices are subject to change though, so be sure to set up a Price Alert for flights 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 $353. Try not to purchase tickets at noon because they tend to be around $519. 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 Los Angeles Los Angeles for the best Colorado - United States flight prices

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

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 $287 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 $263 on momondo.

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.

Cheap Colorado to United States flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Colorado to United States

Best Price Found	$68
Fastest flight time	0h 40m
Direct flights	Every day
Airports in United States	4,301 airports

The best one-way flight to United States from Colorado in the past 72 hours is $68. The best round-trip flight deal from Colorado to United States found on momondo in the last 72 hours is $84.

The fastest flight from Colorado to United States takes 0h 40m

Direct flights go from Colorado to United States every day.

There are 4,301 airports in United States. From Colorado there are direct flights to Dallas/Fort Worth (DFW), Las Vegas Harry Reid Intl (LAS).

Search flight deals

Frequently asked questions about flying from Colorado to the United States

When did momondo last update prices for flights from Colorado to United States?
Prices for flights from Colorado to United States refresh daily.
How many operators does momondo search for flights from Colorado to United States?
As of September 2026, there are 7 operators available to choose from for flights from Colorado to United States.
How old do you have to be to fly from Colorado to United States?
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.
What documentation or ID do you need to fly to United States?
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.
What is the most popular plane model from Colorado to United States?
momondo data reveals that the most frequently booked plane model on the route from Colorado to United States is Boeing 737 MAX 8, representing 18.86% of all bookings. The subsequent popular models are Airbus A321neo at 17.05%, Boeing 737-800 Passenger/BBJ2 (winglets) at 11.85%, and Airbus A320neo at 10.68%.

Best airlines flying from Colorado to United States

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

Airline	Rating	Free Cancellation	Price
Frontier	PriceFrom $54	Free Cancellation	Rating 5.6 2,588 reviews	Search Frontier flights
JetBlue	PriceFrom $80	Free Cancellation	Rating 7.1 3,033 reviews	Search JetBlue flights
Allegiant Air	PriceFrom $90	Free Cancellation	Rating 7.3 678 reviews	Search Allegiant Air flights
Delta	PriceFrom $98	Free Cancellation	Rating 7.8 8,591 reviews	Search Delta flights
Breeze Airways	PriceFrom $119	Free Cancellation	Rating 8.2 324 reviews	Search Breeze Airways flights
Alaska Airlines	PriceFrom $141	Free Cancellation	Rating 7.9 12,953 reviews	Search Alaska Airlines flights
American Airlines	PriceFrom $144	Free Cancellation	Rating 7.0 12,072 reviews	Search American Airlines flights
United Airlines	PriceFrom $146	Free Cancellation	Rating 7.4 10,225 reviews	Search United Airlines flights
Southwest	PriceFrom $157	Free Cancellation	Rating 8.0 4,192 reviews	Search Southwest flights

Why use momondo?

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

momondo collates all your flight options in one place and lets you filter them to find the perfect flight from Colorado to United States. momondo saves you time and could save you money on your trip.

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

Yes. momondo enables you to select and highlight flights to United States from Colorado with this policy.

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

momondo helps you find the best flight between Colorado and United States by providing filters to narrow your choice of flights to those matching your criteria. You can select flights based on numerous factors such as price, departure and landing times, airport and airline.

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

Yes momondo offers price alerts on flights to United States from Colorado. After performing a search on this page you should be able to see the price alert set up feature. Simply provide a valid email address and momondo will instantly alert you when prices change.

An easier way to manage your United States trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.

Start using Trips

Find my bookings

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.

1 adult

Wed 10/21

Wed 10/28

Email me momondo's favorite deals

By creating a price alert you accept our terms of use and privacy policy.

Find better results for your trip to the United States

Popular cities

Other flights from Colorado

Other flights to the United States

Airlines

Cabin classes

Complete your trip

Feeling lucky

Popular cities in the United States

Flights to New Yorkfrom $69

Flights to Los Angelesfrom $38

Flights to Orlandofrom $48

Flights to Miamifrom $50

Flights to San Franciscofrom $43

Flights to Chicagofrom $50

Flights to Las Vegasfrom $50

Flights to Washington, D.C.from $38

Flights to Fort Lauderdalefrom $38

Flights to Bostonfrom $106

Flights to Atlantafrom $38

Flights to Dallasfrom $59

Cheap flights from Colorado to the United States from $68

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Colorado to the United States departing on 11/2. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.

Find the cheapest flights from Colorado to the United States

Cheap round-trip flights

Cheap one-way flights

Cheap last minute flights

Cheap direct flights

Big names and deals

Big names and deals

Filter for what you want

Filter for what you want

Trusted and free

Trusted and free

Price Alerts

Price Alerts

Frontier flights from Colorado to United States

Our best Frontier deals on Colorado to United States flight tickets

Southwest flights from Colorado to United States

Our best Southwest deals on Colorado to United States flight tickets

momondo Fare Finder

Use the filters below to find and compare flights from Colorado to the United States that are best for you.

See travel insights to the United States from

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

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?

What is the cheapest Colorado to United States flight route?

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

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

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

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

What airlines fly to United States?

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

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

How long is the flight from Colorado to United States?

Cheap Colorado to United States flight deals and tips

Best Price Found

Fastest flight time

Direct flights

Airports in United States

Frequently asked questions about flying from Colorado to the 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?

An easier way to manage your United States trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.

Find better results for your trip to the United States

Popular cities in the United States

Popular flights according to clicks in the last 7 days on momondo

Colorado flight routes

According to popular flight searches on momondo this year

United States flight routes

According to popular flight searches on momondo this year

Fly your favorite airline to the United States

Airlines are sorted and displayed according to clicks in the past 7 days on momondo

Cabin classes currently available on flights to the United States

List of cabin classes available on flights landing in the United States. Availability may vary depending on flight origin and airline.

Complete your trip to the United States

Explore popular destinations other users love

According to popular flight searches on momondo this year