What airlines fly to Denver?

United Airlines, Frontier and Southwest are the top three most popular airlines that fly to Denver from Raleigh according to our data. United Airlines is the first choice among our users, with 37% of people opting to fly with this airline when traveling to Denver. Keep in mind that there are 7 different airlines that fly to Denver on a routine basis, so you have a few additional options to choose from.

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

Generally, flights departing at night 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?

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

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

The number of flights available between Raleigh and Denver is 38 per week as of November 2025. The most frequent departure day is Mon, with 18% of weekly flights leaving on this day.

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

5 flights are operational daily from Raleigh to Denver as of November 2025. The most popular departure time for this route is 8:00AM, with 58% of flights per day taking off at noon.

How often are flights from Raleigh to Denver delayed?

Historically, on average around 15% of flights between Raleigh and Denver have experienced a delay on any given week. The average delay length over the past 12 months has been 155 minutes.

What is the cheapest airline that flies from Raleigh-Durham to Denver Intl?

Southwest, United Airlines, and JetBlue are the most popular carriers operating from Raleigh-Durham to Denver Intl

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

According to our data, United Airlines have had the least number of delays on this route over the last 12 months; with about 11% of their flights experiencing any sort of delay.

When did momondo last update prices for flights from Raleigh-Durham Airport to Denver Intl Airport?

Prices for flights from Raleigh-Durham Airport to Denver Intl Airport are refreshed on a daily basis.

How many operators does momondo search for flights from Raleigh-Durham Airport to Denver Intl Airport?

There are 7 operators available for flights from Raleigh-Durham Airport to Denver Intl Airport as of November 2025.

How old do you have to be to fly from Raleigh-Durham Airport 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 Raleigh-Durham Airport to Denver Intl Airport.

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

The travel and health documents you'll need for your trip to Denver Intl Airport 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 Denver Intl Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

$107 Cheap Flights from Raleigh to Denver in 2025/26

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2:24 pm - 8:38 pmRDU-DEN

8h 14m1 stop

1:21 pm - 6:44 pmDEN-RDU

3h 23mnonstop

$145Frontier

Find Deal

Thu, Jan 22 - Mon, Jan 26

12:55 pm - 10:08 pmRDU-DEN

11h 13m1 stop

1:21 pm - 6:41 pmDEN-RDU

3h 20mnonstop

$146Frontier

Find Deal

Thu, Jan 1 - Sun, Jan 11

1:03 pm - 9:38 pmRDU-DEN

10h 35m1 stop

6:00 am - 12:47 pmDEN-RDU

28h 47m1 stop

$147Frontier

Find Deal

Thu, Dec 11 - Sun, Dec 14

4:35 pm - 9:49 pmRDU-DEN

7h 14m1 stop

6:20 am - 6:29 pmDEN-RDU

10h 09m1 stop

$148Frontier

Find Deal

Thu, Jan 29 - Mon, Feb 2

6:10 am - 9:38 pmRDU-DEN

17h 28m1 stop

6:07 pm - 2:27 pmDEN-RDU

18h 20m1 stop

$149Frontier

Find Deal

Thu, Jan 8 - Thu, Jan 15

7:57 pm - 9:49 pmRDU-DEN

27h 52m1 stop

1:21 pm - 6:41 pmDEN-RDU

3h 20mnonstop

$151Frontier

Find Deal

Mon, Jan 5 - Mon, Jan 12

1:03 pm - 9:38 pmRDU-DEN

10h 35m1 stop

12:11 pm - 5:31 pmDEN-RDU

3h 20mnonstop

$152Frontier

Find Deal

Thu, Dec 11 - Sun, Dec 14

7:36 pm - 9:49 pmRDU-DEN

4h 13mnonstop

1:21 pm - 6:41 pmDEN-RDU

3h 20mnonstop

$153Frontier

Find Deal

Mon, Jan 5 - Fri, Jan 9

7:39 pm - 9:49 pmRDU-DEN

4h 10mnonstop

12:59 am - 9:29 pmDEN-RDU

18h 30m1 stop

$154Frontier

Find Deal

Mon, Feb 2 - Tue, Feb 10

5:39 pm - 1:23 amRDU-DEN

9h 44m1 stop

12:11 pm - 5:31 pmDEN-RDU

3h 20mnonstop

$155Frontier

Find Deal

Sat, Dec 6 - Sun, Dec 14

Frontier flights from Raleigh to Denver

Our best Frontier deals on Raleigh to Denver flight tickets

Frontier

Jan 22

RDU2:24 pmRaleigh-Durham

8h 14m

1 stop

DEN8:38 pmDenver Intl

Jan 26

DEN1:21 pmDenver Intl

3h 23m

RDU6:44 pmRaleigh-Durham

$145

Find similar

Frontier

Jan 1

RDU12:55 pmRaleigh-Durham

11h 13m

1 stop

DEN10:08 pmDenver Intl

Jan 11

DEN1:21 pmDenver Intl

3h 20m

RDU6:41 pmRaleigh-Durham

$146

Find similar

Frontier

Dec 11

RDU1:03 pmRaleigh-Durham

10h 35m

1 stop

DEN9:38 pmDenver Intl

Dec 14

DEN6:00 amDenver Intl

28h 47m

1 stop

RDU12:47 pmRaleigh-Durham

$147

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Fly from

Fly to

Route

Depart

Return

Price

RaleighDenver

RDU - DEN

RDUDEN

Raleigh-Durham

Thu 1/22

2:24 pm-8:38 pm

1 stop8h 14m

Denver Intl

Mon 1/26

1:21 pm-6:44 pm

Nonstop3h 23m

$145

RaleighDenver

RDU - DEN

RDUDEN

Raleigh-Durham

Thu 1/1

12:55 pm-10:08 pm

1 stop11h 13m

Denver Intl

Sun 1/11

1:21 pm-6:41 pm

Nonstop3h 20m

$146

RaleighDenver

RDU - DEN

RDUDEN

Raleigh-Durham

Thu 12/11

1:03 pm-9:38 pm

1 stop10h 35m

Denver Intl

Sun 12/14

6:00 am-12:47 pm

1 stop28h 47m

$147

RaleighDenver

RDU - DEN

RDUDEN

Raleigh-Durham

Thu 1/29

4:35 pm-9:49 pm

1 stop7h 14m

Denver Intl

Mon 2/2

6:20 am-6:29 pm

1 stop10h 09m

$148

RaleighDenver

RDU - DEN

RDUDEN

Raleigh-Durham

Thu 1/8

6:10 am-9:38 pm

1 stop17h 28m

Denver Intl

Thu 1/15

6:07 pm-2:27 pm

1 stop18h 20m

$149

RaleighDenver

RDU - DEN

RDUDEN

Raleigh-Durham

Mon 1/5

7:57 pm-9:49 pm

1 stop27h 52m

Denver Intl

Mon 1/12

1:21 pm-6:41 pm

Nonstop3h 20m

$151

RaleighDenver

RDU - DEN

RDUDEN

Raleigh-Durham

Thu 12/11

1:03 pm-9:38 pm

1 stop10h 35m

Denver Intl

Sun 12/14

12:11 pm-5:31 pm

Nonstop3h 20m

$152

RaleighDenver

RDU - DEN

RDUDEN

Raleigh-Durham

Mon 1/5

7:36 pm-9:49 pm

Nonstop4h 13m

Denver Intl

Fri 1/9

1:21 pm-6:41 pm

Nonstop3h 20m

$153

RaleighDenver

RDU - DEN

RDUDEN

Raleigh-Durham

Mon 2/2

7:39 pm-9:49 pm

Nonstop4h 10m

Denver Intl

Tue 2/10

12:59 am-9:29 pm

1 stop18h 30m

$154

RaleighDenver

RDU - DEN

RDUDEN

Raleigh-Durham

Sat 12/6

5:39 pm-1:23 am

1 stop9h 44m

Denver Intl

Sun 12/14

12:11 pm-5:31 pm

Nonstop3h 20m

$155

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How to get the cheapest flight ticket from Raleigh 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 Raleigh is in January. Flight prices, which tend to average around $262, 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 September to fly from Raleigh, 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 Thursday when prices can be found for as low as $336. 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 $427.

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 $282. Flights in the morning are often more expensive with an average ticket price of $462.

What is the cheapest Raleigh-Durham to Denver Intl flight route?

Fly from Raleigh-Durham to Denver Intl for the best Raleigh-Durham - 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 Raleigh when booking weeks ahead of your departure date. In general, you can expect to find flights to Denver for around $317 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Denver from Raleigh for as low as $258 on momondo.

What cabin class options are available on Raleigh-Durham to Denver Intl flights?

There are 4 cabin classes available to choose from on Raleigh-Durham 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 Raleigh to Denver flights?

You could potentially save up to 19% on your flight if you consider stops on a Raleigh to Denver flight.

How have Raleigh to Denver flight prices changed over time?

As of November 2025, prices for Raleigh to Denver flights are approximately 76% more expensive when compared to flights at the same time last year.

When to book flights from Raleigh to Denver

Are you open to changing your travel dates? Check out the ideal times to fly from Raleigh to Denver according to our flight data. Find out which month and days have the cheapest flights.

Estimated round-trip price

Cheap Raleigh to Denver (RDU to DEN) flight deals and tips

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

Best Price Found	$165
Fastest flight time	3h 50m
Direct flights	Every day
Airports in Denver	1 airport

The best one-way flight to Denver from Raleigh in the past 72 hours is $165. The best round-trip flight deal from Raleigh to Denver found on momondo in the last 72 hours is $246.

The fastest flight from Raleigh to Denver takes 3h 50m

Direct flights go from Raleigh to Denver every day.

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

Search flight deals

How far is Raleigh-Durham to Denver Intl by plane?
There are 1458.6 mi between Raleigh-Durham and Denver Intl. A reasonable flight in good conditions will take 4h 10m.
When did momondo last update prices for flights from Raleigh-Durham Airport to Denver Intl Airport?
Prices for flights from Raleigh-Durham Airport to Denver Intl Airport are refreshed on a daily basis.
How many operators does momondo search for flights from Raleigh-Durham Airport to Denver Intl Airport?
There are 7 operators available for flights from Raleigh-Durham Airport to Denver Intl Airport as of November 2025.
How old do you have to be to fly from Raleigh-Durham Airport 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 Raleigh-Durham Airport to Denver Intl Airport.
What documentation or ID do you need to fly to Denver Intl Airport?
The travel and health documents you'll need for your trip to Denver Intl Airport 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 Denver Intl Airport. 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 Raleigh to Denver?
Based on momondo bookings for flights between Raleigh and Denver, the leading plane model is Boeing 737 MAX 8, making up 19.07% of the total bookings. Other popular models include Boeing 737-800 Passenger/BBJ2 (winglets) with 14.48%, Boeing 737-800 with 13.40%, and Boeing 737 MAX 9 with 11.93%.
What is the most popular airline from Raleigh to Denver?
Based on momondo bookings for flights between Raleigh and Denver, the leading airline is Frontier, making up 42% of the total bookings. Other popular airlines include United Airlines with 31%, Southwest with 22%, and American Airlines with 3%.

Best airlines flying from Raleigh to Denver

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

Airline	Rating	Free Cancellation	Price
Frontier	PriceFrom $106	Free Cancellation	Rating 5.8 3,100 reviews	Search Frontier flights
Delta	PriceFrom $138	Free Cancellation	Rating 7.9 7,999 reviews	Search Delta flights
American Airlines	PriceFrom $200	Free Cancellation	Rating 7.2 11,048 reviews	Search American Airlines flights
United Airlines	PriceFrom $201	Free Cancellation	Rating 7.4 9,036 reviews	Search United Airlines flights
Southwest	PriceFrom $205	Free Cancellation	Rating 8.0 4,251 reviews	Search Southwest flights
JetBlue	PriceFrom $244	Free Cancellation	Rating 7.2 2,901 reviews	Search JetBlue flights
Sun Country Air	PriceFrom $255	Free Cancellation	Rating 6.9 334 reviews	Search Sun Country Air flights

Southwest Flights From Raleigh to Denver
The lowest priced Southwest flight from Raleigh to Denver from the last 72 hours was $205. Generally, Southwest has 12 flights on this route every week with an average price of $364. Southwest is rated 8.0/10 by our users.
United Airlines Flights From Raleigh to Denver
United Airlines (7.4/10 from 9,036 reviews) operates around 19 flights from Raleigh to Denver in any given week. The average United Airlines airfare for this route is around $426, with deals from around $201 rare but found on momondo. Referenced prices are for round-trip Raleigh to Denver flight searches in the last 72 hours.

Breckenridge

Estes Park

Black Hawk

Aurora

Fort Collins

Keystone

Cripple Creek

Manitou Springs

Longmont

Boulder

Greeley

Lakewood

Thornton

Westminster

Winter Park

Copper Mountain

Silverthorne

Frisco

Centennial

Grand Lake

Why use momondo?

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

We help find the flight that best suits your needs, momondo compares prices from hundreds of airlines and travel agents and helps you filter them to find the best flight from Raleigh to Denver for you.

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

All flight searches from Raleigh to Denver on momondo can be filtered to show those which offer flexible booking policies.

How can momondo help me find flights from Raleigh to Denver?

momondo provides multiple filters to help you find the best flight to Denver from Raleigh. Filter by price, airline, airports, cabin, aircraft, payment method, number of stops and more.

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

Yes momondo offers price alerts on flights to Denver from Raleigh. 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.

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Cheap flights from Raleigh to Denver from $109

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Raleigh to Denver departing on 1/22. 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 Raleigh 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 Thursday when prices can be found for as low as $336. 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 $427.

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 $282. Flights in the morning are often more expensive with an average ticket price of $462.

What is the cheapest Raleigh-Durham to Denver Intl flight route?

Fly from Raleigh-Durham to Denver Intl for the best Raleigh-Durham - Denver Intl flight prices

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

What cabin class options are available on Raleigh-Durham to Denver Intl flights?

There are 4 cabin classes available to choose from on Raleigh-Durham 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 Raleigh to Denver flights?

You could potentially save up to 19% on your flight if you consider stops on a Raleigh to Denver flight.

How have Raleigh to Denver flight prices changed over time?

As of November 2025, prices for Raleigh to Denver flights are approximately 76% more expensive when compared to flights at the same time last year.

What is the cheapest airline that flies from Raleigh-Durham to Denver Intl?

Southwest, United Airlines, and JetBlue are the most popular carriers operating from Raleigh-Durham to Denver Intl

What airlines fly to Denver?

How often are flights from Raleigh to Denver delayed?

Historically, on average around 15% of flights between Raleigh and Denver have experienced a delay on any given week. The average delay length over the past 12 months has been 155 minutes.

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

Generally, flights departing at night 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?

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

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

According to our data, United Airlines have had the least number of delays on this route over the last 12 months; with about 11% of their flights experiencing any sort of delay.

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

5 flights are operational daily from Raleigh to Denver as of November 2025. The most popular departure time for this route is 8:00AM, with 58% of flights per day taking off at noon.

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

The number of flights available between Raleigh and Denver is 38 per week as of November 2025. The most frequent departure day is Mon, with 18% of weekly flights leaving on this day.

When to book flights from Raleigh to Denver

Cheap Raleigh to Denver (RDU to DEN) flight deals and tips

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

Best Price Found

Fastest flight time

Direct flights

Airports in Denver

How far is Raleigh-Durham to Denver Intl by plane?

When did momondo last update prices for flights from Raleigh-Durham Airport to Denver Intl Airport?

How many operators does momondo search for flights from Raleigh-Durham Airport to Denver Intl Airport?

How old do you have to be to fly from Raleigh-Durham Airport 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 Raleigh to Denver?

What is the most popular airline from Raleigh to Denver?

Best airlines flying from Raleigh to Denver

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

Southwest Flights From Raleigh to Denver

United Airlines Flights From Raleigh to Denver

Traveling to a place near Denver?

Why use momondo?

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

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

How can momondo help me find flights from Raleigh to Denver?

I’m not ready to book a flight from Raleigh 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