What airlines fly to Denver?

Frontier, United Airlines and Southwest are the top three most popular airlines that fly to Denver from United States 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 Denver. Keep in mind that there are 11 different airlines that fly to Denver on a routine basis, so you have a few additional options to choose from.

What day of the week experiences the fewest flight delays on this route?

Saturday is statistically the day of the week which experiences the fewest number of delays on this flight route. Thursday has historically seen more delays on average compared to the rest of the week.

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

Frontier, United Airlines, and Southwest are the most popular carriers operating from United States to Denver Intl

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

As of December 2025, there are 1,835 flights per week flying from United States to Denver. The most common day of the week flights depart is Thu, with 19% of flights taking off on this day.

How often are flights from the United States to Denver delayed?

Historically, on average around 16% of flights between United States and Denver have experienced a delay on any given week. The average delay length over the past 12 months has been 143 minutes.

Which airline has the best punctuality record on the United States to Denver flights?

According to our data, Air Canada have had the least number of delays on this route over the last 12 months; with about 8% of their flights experiencing any sort of delay.

What is the most punctual flight time for the United States to Denver flights?

Generally, flights departing in the morning tend to experience fewer delays. Flights in the evening have, in the past, seen delays more frequently in comparison.

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

As of December 2025, there are 262 flights per day flying from United States to Denver. The most common time of day flights depart is 8:00AM, with 40% of flights taking off in the afternoon.

How long does it take to fly to Denver?

Flight times vary depending on what airport in United States you fly out of and what airport in Denver you fly into. For example, flying from Los Angeles to Denver takes 2h 22m on average. On the other hand, flying from San Francisco to Denver takes 2h 25m 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.

When did momondo last update prices for flights from United States to Denver Intl Airport?

Prices for flights from United States to Denver Intl Airport are updated daily.

How many operators does momondo search for flights from United States to Denver Intl Airport?

As of December 2025, there are 10 operators available to choose from for flights from United States to Denver Intl Airport.

How old do you have to be to fly from United States to Denver Intl Airport?

The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from United States to Denver Intl Airport.

What documentation or ID do you need to fly to Denver Intl Airport?

The travel and health documents required for your trip to Denver Intl Airport 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 Denver Intl Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

$38 Cheap Flights from the United States to Denver in 2025/26

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Recent round-trip flight deals from the United States to Denver

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12:19 pm - 4:10 pm

SEA

DEN

2h 51mnonstop

12:34 pm - 2:43 pm

DEN

SEA

3h 09mnonstop

$72Frontier

Fri, Jan 16 - Sat, Jan 17

12:19 pm - 4:10 pm

SEA

DEN

2h 51mnonstop

9:00 am - 11:09 am

DEN

SEA

3h 09mnonstop

$73Frontier

Fri, Jan 16 - Sun, Jan 18

3:58 pm - 7:46 pm

SEA

DEN

2h 48mnonstop

7:00 am - 9:11 am

DEN

SEA

3h 11mnonstop

$74Multiple Airlines

Sat, Jan 17 - Sat, Jan 24

7:00 am - 8:23 am

DFW

DEN

2h 23mnonstop

10:00 am - 1:07 pm

DEN

DFW

2h 07mnonstop

$75Frontier

Tue, Feb 10 - Sun, Feb 15

2:02 pm - 3:57 pm

ORD

DEN

2h 55mnonstop

7:24 pm - 10:53 pm

DEN

ORD

2h 29mnonstop

$105United Airlines

Sat, Feb 28 - Wed, Mar 4

9:00 am - 10:40 am

HOU

DEN

2h 40mnonstop

8:35 am - 12:05 pm

DEN

HOU

2h 30mnonstop

$145Southwest

Wed, Feb 4 - Tue, Feb 10

9:05 pm - 10:40 pm

HOU

DEN

2h 35mnonstop

6:25 pm - 9:55 pm

DEN

HOU

2h 30mnonstop

$157Southwest

Wed, Jan 14 - Wed, Jan 21

12:47 pm - 6:13 pm

HOU

DEN

6h 26m1 stop

8:44 am - 4:12 pm

DEN

HOU

6h 28m1 stop

$161American Airlines

Wed, Jan 14 - Wed, Jan 21

6:00 am - 9:55 am

HOU

DEN

4h 55m1 stop

10:45 am - 6:06 pm

DEN

HOU

6h 21m1 stop

$162American Airlines

Sat, Jan 10 - Tue, Jan 13

7:20 am - 10:24 am

BOS

DEN

5h 04mnonstop

11:38 am - 5:35 pm

DEN

BOS

3h 57mnonstop

$177Delta

Thu, Jan 8 - Wed, Jan 14

Alaska Airlines flights from United States to Denver

Our best Alaska Airlines deals on United States to Denver flight tickets

Alaska Airlines

Jan 10

SEA7:54 pmSeattle/Tacoma Intl

2h 41m

DEN11:35 pmDenver Intl

Jan 11

DEN7:00 amDenver Intl

3h 11m

SEA9:11 amSeattle/Tacoma Intl

$89

Find similar

Alaska Airlines

Jan 9

SEA7:54 pmSeattle/Tacoma Intl

2h 41m

DEN11:35 pmDenver Intl

Jan 13

DEN5:09 pmDenver Intl

3h 06m

SEA7:15 pmSeattle/Tacoma Intl

$97

Find similar

Alaska Airlines

Jan 4

SEA8:17 pmSeattle/Tacoma Intl

2h 42m

DEN11:59 pmDenver Intl

Jan 6

DEN11:31 amDenver Intl

5h 30m

1 stop

SEA4:01 pmSeattle/Tacoma Intl

$108

Find similar

United Airlines flights from United States to Denver

Our best United Airlines deals on United States to Denver flight tickets

United Airlines

Jan 14

DFW8:55 amDallas/Fort Worth

2h 16m

DEN10:11 amDenver Intl

Jan 21

DEN3:35 pmDenver Intl

2h 04m

DFW6:39 pmDallas/Fort Worth

$91

Find similar

United Airlines

Jan 21

DFW8:55 amDallas/Fort Worth

2h 16m

DEN10:11 amDenver Intl

Jan 24

DEN1:45 pmDenver Intl

2h 04m

DFW4:49 pmDallas/Fort Worth

$98

Find similar

United Airlines

Jan 19

LAX7:01 amLos Angeles

2h 29m

DEN10:30 amDenver Intl

Jan 23

DEN7:50 amDenver Intl

2h 46m

LAX9:36 amLos Angeles

$99

Find similar

Fly from

Fly to

Route

Depart

Return

Price

SeattleDenver

SEA - DEN

SEADEN

Seattle/Tacoma Intl

Fri 1/16

12:19 pm-4:10 pm

Nonstop2h 51m

Denver Intl

Sat 1/17

12:34 pm-2:43 pm

Nonstop3h 09m

$72

SeattleDenver

SEA - DEN

SEADEN

Seattle/Tacoma Intl

Fri 1/16

12:19 pm-4:10 pm

Nonstop2h 51m

Denver Intl

Sun 1/18

9:00 am-11:09 am

Nonstop3h 09m

$73

SeattleDenver

SEA - DEN

SEADEN

Seattle/Tacoma Intl

Sat 1/17

3:58 pm-7:46 pm

Nonstop2h 48m

Denver Intl

Sat 1/24

7:00 am-9:11 am

Nonstop3h 11m

$74

DallasDenver

DFW - DEN

DFWDEN

Dallas/Fort Worth

Tue 2/10

7:00 am-8:23 am

Nonstop2h 23m

Denver Intl

Sun 2/15

10:00 am-1:07 pm

Nonstop2h 07m

$75

ChicagoDenver

ORD - DEN

ORDDEN

Chicago O'Hare Intl

Sat 2/28

2:02 pm-3:57 pm

Nonstop2h 55m

Denver Intl

Wed 3/4

7:24 pm-10:53 pm

Nonstop2h 29m

$105

HoustonDenver

HOU - DEN

HOUDEN

Houston Hobby

Wed 2/4

9:00 am-10:40 am

Nonstop2h 40m

Denver Intl

Tue 2/10

8:35 am-12:05 pm

Nonstop2h 30m

$145

HoustonDenver

HOU - DEN

HOUDEN

Houston Hobby

Wed 1/14

9:05 pm-10:40 pm

Nonstop2h 35m

Denver Intl

Wed 1/21

6:25 pm-9:55 pm

Nonstop2h 30m

$157

HoustonDenver

HOU - DEN

HOUDEN

Houston Hobby

Wed 1/14

12:47 pm-6:13 pm

1 stop6h 26m

Denver Intl

Wed 1/21

8:44 am-4:12 pm

1 stop6h 28m

$161

HoustonDenver

HOU - DEN

HOUDEN

Houston Hobby

Sat 1/10

6:00 am-9:55 am

1 stop4h 55m

Denver Intl

Tue 1/13

10:45 am-6:06 pm

1 stop6h 21m

$162

BostonDenver

BOS - DEN

BOSDEN

Boston Logan Intl

Thu 1/8

7:20 am-10:24 am

Nonstop5h 04m

Denver Intl

Wed 1/14

11:38 am-5:35 pm

Nonstop3h 57m

$177

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

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

Delays

Other information

What is the cheapest month to fly to Denver?

The cheapest month to fly to Denver from United States is in January. Flight prices, which tend to average around $277, are often lower during this time because this is during the off-season. If you don’t want to visit Denver in January, then you should wait until October to fly from United States, when ticket prices are also cheap, with an average price of $277.

What is the cheapest day to depart on your flight to Denver?

The cheapest day to depart on your flight to Denver is on a Wednesday when prices can be found for as low as $366. This is often the case because there is less demand to fly during this day of the week. The most expensive day to fly to Denver is Sunday, with ticket prices averaging around $451.

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

The cheapest time of day to fly to Denver is in the evening when flights can be purchased for as low as $287. Flights in the morning are often more expensive with an average ticket price of $420.

What is the cheapest United States to Denver Intl flight route?

Fly from Los Angeles to Denver Intl for the best United States - Denver Intl flight prices

How far in advance should I book a flight to Denver?

You are more likely to see cheaper flights to Denver from United States when booking weeks ahead of your departure date. In general, you can expect to find flights to Denver for around $284 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Denver from United States for as low as $257 on momondo.

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

There are 4 cabin classes available to choose from on United States to Denver Intl 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 United States to Denver flights?

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

Cheap United States to Denver flight deals and tips

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

Best Price Found	$49
Fastest flight time	0h 55m
Direct flights	Every day
Airports in Denver	1 airport

The best one-way flight to Denver from United States in the past 72 hours is $49. The best round-trip flight deal from United States to Denver found on momondo in the last 72 hours is $108.

The fastest flight from United States to Denver takes 0h 55m

Direct flights go from United States to Denver every day.

There is 1 airport near Denver: Denver Intl (DEN)

Search flight deals

When did momondo last update prices for flights from United States to Denver Intl Airport?
Prices for flights from United States to Denver Intl Airport are updated daily.
How many operators does momondo search for flights from United States to Denver Intl Airport?
As of December 2025, there are 10 operators available to choose from for flights from United States to Denver Intl Airport.
How old do you have to be to fly from United States to Denver Intl Airport?
The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from United States to Denver Intl Airport.
What documentation or ID do you need to fly to Denver Intl Airport?
The travel and health documents required for your trip to Denver Intl Airport 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 Denver Intl Airport. 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 United States to Denver?
Based on momondo bookings for flights between United States and Denver, the leading plane model is Airbus A321neo, making up 16.29% of the total bookings. Other popular models include Boeing 737 MAX 8 with 14.41%, Boeing 737-800 with 10.08%, and Boeing 737-900 with 9.84%.

Best airlines flying from United States to Denver

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

Airline	Rating	Free Cancellation	Price
Frontier	PriceFrom $56	Free Cancellation	Rating 5.8 3,092 reviews	Search Frontier flights
Allegiant Air	PriceFrom $88	Free Cancellation	Rating 7.2 698 reviews	Search Allegiant Air flights
Delta	PriceFrom $116	Free Cancellation	Rating 7.9 8,011 reviews	Search Delta flights
JetBlue	PriceFrom $127	Free Cancellation	Rating 7.2 2,900 reviews	Search JetBlue flights
Sun Country Air	PriceFrom $130	Free Cancellation	Rating 6.9 332 reviews	Search Sun Country Air flights
United Airlines	PriceFrom $133	Free Cancellation	Rating 7.4 9,063 reviews	Search United Airlines flights
Southwest	PriceFrom $137	Free Cancellation	Rating 8.0 4,253 reviews	Search Southwest flights
American Airlines	PriceFrom $153	Free Cancellation	Rating 7.2 11,045 reviews	Search American Airlines flights

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Cripple Creek

Manitou Springs

Longmont

Boulder

Greeley

Lakewood

Thornton

Westminster

Winter Park

Copper Mountain

Silverthorne

Centennial

Frisco

Grand Lake

Why use momondo?

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

momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights from United States to Denver. Millions of users trust and use momondo every year so you are in good hands.

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

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

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

Once all potential United States to Denver flight options are in front of you, momondo lets you sort and filter flights based on preferences such as airline, price and flight times amongst many other options.

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

Price alerts on flights to Denver from United States are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.

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Cheap flights from the United States to Denver from $38

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from the United States to Denver departing on 1/1. 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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Alaska Airlines flights from United States to Denver

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United Airlines flights from United States to Denver

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

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 Denver?

What is the cheapest day to depart on your flight to Denver?

The cheapest day to depart on your flight to Denver is on a Wednesday when prices can be found for as low as $366. This is often the case because there is less demand to fly during this day of the week. The most expensive day to fly to Denver is Sunday, with ticket prices averaging around $451.

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

The cheapest time of day to fly to Denver is in the evening when flights can be purchased for as low as $287. Flights in the morning are often more expensive with an average ticket price of $420.

What is the cheapest United States to Denver Intl flight route?

Fly from Los Angeles to Denver Intl for the best United States - Denver Intl flight prices

How far in advance should I book a flight to Denver?

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

There are 4 cabin classes available to choose from on United States to Denver Intl 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 United States to Denver flights?

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

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

Frontier, United Airlines, and Southwest are the most popular carriers operating from United States to Denver Intl

What airlines fly to Denver?

How often are flights from the United States to Denver delayed?

Historically, on average around 16% of flights between United States and Denver have experienced a delay on any given week. The average delay length over the past 12 months has been 143 minutes.

What is the most punctual flight time for the United States to Denver flights?

Generally, flights departing in the morning tend to experience fewer delays. Flights in the evening have, in the past, seen delays more frequently in comparison.

What day of the week experiences the fewest flight delays on this route?

Saturday is statistically the day of the week which experiences the fewest number of delays on this flight route. Thursday has historically seen more delays on average compared to the rest of the week.

Which airline has the best punctuality record on the United States to Denver flights?

According to our data, Air Canada have had the least number of delays on this route over the last 12 months; with about 8% of their flights experiencing any sort of delay.

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

As of December 2025, there are 262 flights per day flying from United States to Denver. The most common time of day flights depart is 8:00AM, with 40% of flights taking off in the afternoon.

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

As of December 2025, there are 1,835 flights per week flying from United States to Denver. The most common day of the week flights depart is Thu, with 19% of flights taking off on this day.

How long does it take to fly to Denver?

Cheap United States to Denver flight deals and tips

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

Best Price Found

Fastest flight time

Direct flights

Airports in Denver

When did momondo last update prices for flights from United States to Denver Intl Airport?

How many operators does momondo search for flights from United States to Denver Intl Airport?

How old do you have to be to fly from United States to Denver Intl Airport?

What documentation or ID do you need to fly to Denver Intl Airport?

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

Best airlines flying from United States to Denver

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

Traveling to a place near Denver?

Why use momondo?

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

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

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

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

An easier way to manage your Denver 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

Airports servicing Colorado