Find Cheap Flights from Raleigh-Durham to Denver International (RDU - DEN)

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Fri 12/15
Fri 12/22
Any month
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Good to Know

Low Season:
September
Best time to beat the crowds
3%
expected price decrease
High Season:
December
Most popular time to fly
20%
expected price increase
Average Price:
$301
(avg. price over the last 2 weeks)
Good Deal:
$198
or less (round trip)

When to Book Flights from Raleigh-Durham to Denver International

Average price per month
Flight prices as travel date approaches
-1 day
-2 days

Top tips for Finding a Cheap Flight

Looking for a cheap flight? 25% of our users found flights on this route for $198 or less.
The cheapest flight from Raleigh-Durham to Denver International was found 23 days before departure, on average.
Book at least 2 weeks before departure in order to get a below-average price.
Morning departure is around 17% cheaper than an evening flight, on average*.
*Average of the lowest prices shown in KAYAK’s search results for departures within the next 30 days

FAQs for Booking Raleigh-Durham to Denver International Flights

How long does a flight from Raleigh-Durham to Denver International take?
An average nonstop flight takes 3h 50m, covering a distance of 1433 miles.
How many flights are there between Raleigh-Durham and Denver International?
There are 65 (nonstop) flights between Raleigh-Durham and Denver International per week, averaging 9 per day.
Which airlines provide the cheapest flights from Raleigh-Durham to Denver International?
In the past 3 days, the cheapest round-trip tickets were found on Frontier ($173), Multiple Airlines ($225) and United ($235).
Do I need a passport to fly between Raleigh-Durham and Denver International?
No.
Which airlines fly most frequently between Raleigh-Durham and Denver International?
United (5 times daily), Southwest (4 times daily) are the most frequent flyers on this route.
What’s the cheapest day of the week to fly Raleigh-Durham to Denver International?
For Raleigh-Durham to Denver International, Sunday is the cheapest day to fly on average and Tuesday is the most expensive. Flying from Denver International back to Raleigh-Durham, the best deals are generally found on Friday, with Thursday being the most expensive.

Book cheap flights from Raleigh-Durham to Denver International (round-trip)

Airports
Origin
Raleigh
$173
only
$173
Destination
Denver
$173
only
$173
Sun, Jan 14
RDU
DEN
6h 45m
Tue, Jan 23
DEN
RDU
5h 55m
Trip: 10 days
5.9OkayShow reviews
Overall 5.9 Okay
Based on 85 reviews
Overall
5.9
Boarding
6.4
Comfort
5.4
Crew
6.8
Entertainment
4.5
Food
4.7
RDU
DEN
Mediocre 2.0

At 10:15pm before a 7:20 we stated getting text about time changes on our fight time . At 4:00 am it had changed 3 times and gone to 1:03 pm flight time we had to buy tickets from another carrier that left at 6:10 am. I am really disappointed in the way Frontier Airlines does business keeping their customers guessing if they are going to make their appointments or not. We had a family wedding to make that evening and couldn't keep gambling on it.

RDU
DEN
Excellent 9.0

Curtious

RDU
DEN
Excellent 10.0

Great take off and landing as well as in flight service.

RDU
DEN
Excellent 10.0

Timely

Charge for carry on

RDU
DEN
Mediocre 3.0

It was cheap

I had to find another flight on my own to replace the second leg of my trip from Denver to Salt Lake City. The customer service was ridiculous.

Tue, Mar 27
RDU
DEN
4h 06m
Sun, Apr 8
DEN
RDU
3h 19m
Trip: 13 days
Overall 0.0 Poor
Based on 0 reviews
Mon, Feb 12
RDU
DEN
4h 07m
Thu, Feb 15
DEN
RDU
3h 16m
Trip: 4 days
7.5GoodShow reviews
Overall 7.5 Good
Based on 19 reviews
Overall
7.2
Boarding
7.4
Comfort
6.9
Crew
7.7
Entertainment
6.5
Food
6.4
RSW
EWR
Okay 5.3

Boarding quickly

No PED was available didn’t have anything for entertainment if you weren’t buying it seems every thing available for 3 hour flight and flight was scheduled for 2 hours and 55 minutes No snacks made available came thru once had a small bag of pretzels cup of coffee and never came back

MIA
ORD
Excellent 9.0

That it got me to Paris safe

No outlets to charge your phone, and the tv played the same movie over and over. The meals were also cheap. Didn't like any of them. Should have flown southwest or delta.

RDU
DEN
Excellent 9.3

The free programming on your personal device

Drink (Alcohol) options could be better

RDU
DEN
Excellent 10.0

No drama. Everything on time. Crews were great.

Seats cramped but I'm 6'7" so I should have put more effort into getting a bulkhead or emergency exit seat. My fault.

RDU
DEN
Good 7.3

Flight attendants were amazing !

Seats weren't very comfortable

Fri, Mar 30
RDU
DEN
6h 18m
Fri, Apr 6
DEN
RDU
8h 24m
Trip: 8 days
7.8GoodShow reviews
Overall 7.8 Good
Based on 14235 reviews
Overall
8.0
Boarding
8.1
Comfort
7.7
Crew
8.4
Entertainment
7.5
Food
7.3
IND
DTW
Okay 4.0

No wifi couldn’t do any work

Was looking forward to completing some work but the wifi never came on.

JFK
YYZ
Excellent 10.0

The staff is very friendly. Most pleasant airline I've flown with.

SEA
LAX
Okay 4.0

Nothing, they didn’t care about you or to help, the llady was so rude and unfriendly, this situation ruin my whole trip

I call in advance to paid the fees for baggage, I call Aeromexico because was the main airline for the fly, but Delta at Seattle made me paid again the fees for baggage’s even by phone they said that I didn’t need to paid. BE AWARE AND CAREFUL BECAUSE THE LADIES IN THE FRONT DESK didn’t even look the paperwork that you have in hand, they only want to charge you saying that your payment thru Aeromexico didn’t help you in the 1st fly. How this can happen when Delta and Aeromexico are two subsidiary one of another ?

ZAG
CDG
Good 6.0

Old plane, bad food & old crew

ATL
DFW
Excellent 10.0

My entire flight experience was delightful. Was dry impressed with the staff both at Hartsfield-Jackson and DFW...and our flight crew was positively sublime.

Tue, Feb 6
RDU
DEN
6h 29m
Tue, Feb 13
DEN
RDU
5h 45m
Trip: 8 days
5.9OkayShow reviews
Overall 5.9 Okay
Based on 85 reviews
Overall
5.9
Boarding
6.4
Comfort
5.4
Crew
6.8
Entertainment
4.5
Food
4.7
RDU
DEN
Mediocre 2.3

Landing was good

Surprise cost of carry on bags Flight attendents reguests over and over to clean areah

RDU
DEN
Mediocre 3.0

It was cheap

I had to find another flight on my own to replace the second leg of my trip from Denver to Salt Lake City. The customer service was ridiculous.

RDU
DEN
Excellent 9.6

They offered to move people who looked crowded. Remember to prepay for luggage whether carryon or checked. Costs more at the airport.

Small seats, but that is with most or all airlines.

RDU
DEN
Okay 4.0

Not much

Paying for bags, paying for water and snacks, delayed because they overbooked and let too many people on the plane

RDU
DEN
Okay 5.3

The plane needs to be cleaned. There is dirt and grime around the windows, on the little tray infringed of the seat and my seat had crumbs on it.

Wed, Apr 18
RDU
DEN
5h 27m
Sat, Apr 21
DEN
RDU
4h 54m
Trip: 4 days
5.9OkayShow reviews
Overall 5.9 Okay
Based on 85 reviews
Overall
5.9
Boarding
6.4
Comfort
5.4
Crew
6.8
Entertainment
4.5
Food
4.7
RDU
DEN
Mediocre 2.0

WE had a last minute emergency and didn't go.

RDU
DEN
Excellent 9.0

Curtious

RDU
DEN
Okay 5.3

The plane needs to be cleaned. There is dirt and grime around the windows, on the little tray infringed of the seat and my seat had crumbs on it.

RDU
DEN
Okay 4.0

I liked the direct flight, I liked the price of the flight.

The seats on the plane do not recline and they are extremely hard. The arm rests go up but not in a way that you can enjoy the person you are next to if you're trying to sleep. The tray tables on the plane were so small I'm not even sure they would hold and iPad let alone a laptop if you had to work on business.

RDU
DEN
Okay 5.6

This can't be helped but man it was a bumpy ride.

Drinks should be complimentary - soda etc. :(

Sat, Jun 9
RDU
DEN
5h 26m
Wed, Jun 13
DEN
RDU
5h 16m
Trip: 5 days
5.9OkayShow reviews
Overall 5.9 Okay
Based on 85 reviews
Overall
5.9
Boarding
6.4
Comfort
5.4
Crew
6.8
Entertainment
4.5
Food
4.7
RDU
DEN
Okay 5.6

This can't be helped but man it was a bumpy ride.

Drinks should be complimentary - soda etc. :(

RDU
DEN
Mediocre 3.0

It was cheap

I had to find another flight on my own to replace the second leg of my trip from Denver to Salt Lake City. The customer service was ridiculous.

RDU
DEN
Excellent 10.0

Great take off and landing as well as in flight service.

RDU
DEN
Okay 5.3

The plane needs to be cleaned. There is dirt and grime around the windows, on the little tray infringed of the seat and my seat had crumbs on it.

RDU
DEN
Excellent 9.6

They offered to move people who looked crowded. Remember to prepay for luggage whether carryon or checked. Costs more at the airport.

Small seats, but that is with most or all airlines.

Tue, Jun 5
RDU
DEN
3h 50m
Wed, Jun 13
DEN
RDU
5h 16m
Trip: 9 days
5.9OkayShow reviews
Overall 5.9 Okay
Based on 85 reviews
Overall
5.9
Boarding
6.4
Comfort
5.4
Crew
6.8
Entertainment
4.5
Food
4.7
RDU
DEN
Mediocre 2.0

At 10:15pm before a 7:20 we stated getting text about time changes on our fight time . At 4:00 am it had changed 3 times and gone to 1:03 pm flight time we had to buy tickets from another carrier that left at 6:10 am. I am really disappointed in the way Frontier Airlines does business keeping their customers guessing if they are going to make their appointments or not. We had a family wedding to make that evening and couldn't keep gambling on it.

RDU
DEN
Excellent 10.0

Timely

Charge for carry on

RDU
DEN
Excellent 10.0

Great take off and landing as well as in flight service.

RDU
DEN
Okay 4.0

I liked the direct flight, I liked the price of the flight.

The seats on the plane do not recline and they are extremely hard. The arm rests go up but not in a way that you can enjoy the person you are next to if you're trying to sleep. The tray tables on the plane were so small I'm not even sure they would hold and iPad let alone a laptop if you had to work on business.

RDU
DEN
Okay 4.0

Not much

Paying for bags, paying for water and snacks, delayed because they overbooked and let too many people on the plane

Sun, Dec 24
RDU
DEN
6h 41m
Thu, Jan 4
DEN
RDU
10h 15m
Trip: 12 days
Overall 0.0 Poor
Based on 0 reviews
Sun, Mar 4
RDU
DEN
4h 06m
Sat, Mar 10
DEN
RDU
5h 27m
Trip: 7 days
7.5GoodShow reviews
Overall 7.5 Good
Based on 19 reviews
Overall
7.2
Boarding
7.4
Comfort
6.9
Crew
7.7
Entertainment
6.5
Food
6.4
RDU
DEN
Excellent 10.0

No drama. Everything on time. Crews were great.

Seats cramped but I'm 6'7" so I should have put more effort into getting a bulkhead or emergency exit seat. My fault.

RDU
DEN
Good 7.3

Flight attendants were amazing !

Seats weren't very comfortable

RSW
EWR
Okay 5.3

Waiting

RDU
DEN
Good 6.3

Now that you asked - the seats were pretty comfortable.

The snack was adequate but I don't think very healthy. I didn't eat it on the second flight. Not sure what - the plane - wind patterns - pilot - but it was a pretty rocky flight from RDU to DEN. You should give NA as an option cause I didn't use the entertainment

MIA
ORD
Excellent 9.0

That it got me to Paris safe

No outlets to charge your phone, and the tv played the same movie over and over. The meals were also cheap. Didn't like any of them. Should have flown southwest or delta.

Thu, Apr 19
RDU
DEN
7h 25m
Tue, Apr 24
DEN
RDU
3h 19m
Trip: 6 days
5.9OkayShow reviews
Overall 5.9 Okay
Based on 85 reviews
Overall
5.9
Boarding
6.4
Comfort
5.4
Crew
6.8
Entertainment
4.5
Food
4.7
RDU
DEN
Okay 5.6

This can't be helped but man it was a bumpy ride.

Drinks should be complimentary - soda etc. :(

RDU
DEN
Excellent 9.6

They offered to move people who looked crowded. Remember to prepay for luggage whether carryon or checked. Costs more at the airport.

Small seats, but that is with most or all airlines.

RDU
DEN
Mediocre 2.0

WE had a last minute emergency and didn't go.

RDU
DEN
Mediocre 3.0

It was cheap

I had to find another flight on my own to replace the second leg of my trip from Denver to Salt Lake City. The customer service was ridiculous.

RDU
DEN
Okay 5.3

The plane needs to be cleaned. There is dirt and grime around the windows, on the little tray infringed of the seat and my seat had crumbs on it.

Tue, May 22
RDU
DEN
3h 50m
Tue, May 29
DEN
RDU
3h 17m
Trip: 8 days
5.9OkayShow reviews
Overall 5.9 Okay
Based on 85 reviews
Overall
5.9
Boarding
6.4
Comfort
5.4
Crew
6.8
Entertainment
4.5
Food
4.7
RDU
DEN
Okay 5.6

This can't be helped but man it was a bumpy ride.

Drinks should be complimentary - soda etc. :(

RDU
DEN
Okay 5.3

The plane needs to be cleaned. There is dirt and grime around the windows, on the little tray infringed of the seat and my seat had crumbs on it.

RDU
DEN
Mediocre 2.0

At 10:15pm before a 7:20 we stated getting text about time changes on our fight time . At 4:00 am it had changed 3 times and gone to 1:03 pm flight time we had to buy tickets from another carrier that left at 6:10 am. I am really disappointed in the way Frontier Airlines does business keeping their customers guessing if they are going to make their appointments or not. We had a family wedding to make that evening and couldn't keep gambling on it.

RDU
DEN
Mediocre 2.0

WE had a last minute emergency and didn't go.

RDU
DEN
Okay 4.0

Not much

Paying for bags, paying for water and snacks, delayed because they overbooked and let too many people on the plane

Sun, Dec 31
RDU
DEN
4h 14m
Fri, Jan 12
DEN
RDU
3h 19m
Trip: 13 days
7.5GoodShow reviews
Overall 7.5 Good
Based on 19 reviews
Overall
7.2
Boarding
7.4
Comfort
6.9
Crew
7.7
Entertainment
6.5
Food
6.4
RDU
DEN
Okay 4.0

Poor food for the price

RDU
DEN
Excellent 9.3

The free programming on your personal device

Drink (Alcohol) options could be better

RDU
DEN
Good 6.6

You have taken the enjoyment of flying first class to a whole new low with the new seats they have designed and put in. The lack a privacy from the cabin as well as the design in how the seat is set, comfort and utility of the seat - my tray table didn't even function. It was an expensive 4 hour flight that was not comfortable ...

RDU
DEN
Good 6.3

Now that you asked - the seats were pretty comfortable.

The snack was adequate but I don't think very healthy. I didn't eat it on the second flight. Not sure what - the plane - wind patterns - pilot - but it was a pretty rocky flight from RDU to DEN. You should give NA as an option cause I didn't use the entertainment

RDU
DEN
Excellent 10.0

Friendly service.

Fri, Jan 19
RDU
DEN
12h 24m
Tue, Jan 23
DEN
RDU
5h 55m
Trip: 5 days
5.9OkayShow reviews
Overall 5.9 Okay
Based on 85 reviews
Overall
5.9
Boarding
6.4
Comfort
5.4
Crew
6.8
Entertainment
4.5
Food
4.7
RDU
DEN
Mediocre 3.0

It was cheap

I had to find another flight on my own to replace the second leg of my trip from Denver to Salt Lake City. The customer service was ridiculous.

RDU
DEN
Okay 4.0

Not much

Paying for bags, paying for water and snacks, delayed because they overbooked and let too many people on the plane

RDU
DEN
Okay 5.6

This can't be helped but man it was a bumpy ride.

Drinks should be complimentary - soda etc. :(

RDU
DEN
Excellent 9.0

Curtious

RDU
DEN
Excellent 10.0

Great take off and landing as well as in flight service.

Sun, Jan 7
RDU
DEN
6h 45m
Sun, Jan 14
DEN
RDU
5h 55m
Trip: 8 days
5.9OkayShow reviews
Overall 5.9 Okay
Based on 85 reviews
Overall
5.9
Boarding
6.4
Comfort
5.4
Crew
6.8
Entertainment
4.5
Food
4.7
RDU
DEN
Okay 5.6

This can't be helped but man it was a bumpy ride.

Drinks should be complimentary - soda etc. :(

RDU
DEN
Mediocre 2.0

At 10:15pm before a 7:20 we stated getting text about time changes on our fight time . At 4:00 am it had changed 3 times and gone to 1:03 pm flight time we had to buy tickets from another carrier that left at 6:10 am. I am really disappointed in the way Frontier Airlines does business keeping their customers guessing if they are going to make their appointments or not. We had a family wedding to make that evening and couldn't keep gambling on it.

RDU
DEN
Excellent 9.6

They offered to move people who looked crowded. Remember to prepay for luggage whether carryon or checked. Costs more at the airport.

Small seats, but that is with most or all airlines.

RDU
DEN
Mediocre 2.0

WE had a last minute emergency and didn't go.

RDU
DEN
Mediocre 3.0

It was cheap

I had to find another flight on my own to replace the second leg of my trip from Denver to Salt Lake City. The customer service was ridiculous.

Sun, Mar 4
RDU
DEN
6h 45m
Tue, Mar 6
DEN
RDU
7h 08m
Trip: 3 days
5.9OkayShow reviews
Overall 5.9 Okay
Based on 85 reviews
Overall
5.9
Boarding
6.4
Comfort
5.4
Crew
6.8
Entertainment
4.5
Food
4.7
RDU
DEN
Mediocre 2.0

At 10:15pm before a 7:20 we stated getting text about time changes on our fight time . At 4:00 am it had changed 3 times and gone to 1:03 pm flight time we had to buy tickets from another carrier that left at 6:10 am. I am really disappointed in the way Frontier Airlines does business keeping their customers guessing if they are going to make their appointments or not. We had a family wedding to make that evening and couldn't keep gambling on it.

RDU
DEN
Excellent 9.0

Curtious

RDU
DEN
Okay 4.0

Not much

Paying for bags, paying for water and snacks, delayed because they overbooked and let too many people on the plane

RDU
DEN
Okay 5.3

The plane needs to be cleaned. There is dirt and grime around the windows, on the little tray infringed of the seat and my seat had crumbs on it.

RDU
DEN
Mediocre 3.0

It was cheap

I had to find another flight on my own to replace the second leg of my trip from Denver to Salt Lake City. The customer service was ridiculous.

Sat, Jun 30
RDU
DEN
3h 50m
Wed, Jul 4
DEN
RDU
3h 17m
Trip: 5 days
5.9OkayShow reviews
Overall 5.9 Okay
Based on 85 reviews
Overall
5.9
Boarding
6.4
Comfort
5.4
Crew
6.8
Entertainment
4.5
Food
4.7
RDU
DEN
Okay 4.0

I liked the direct flight, I liked the price of the flight.

The seats on the plane do not recline and they are extremely hard. The arm rests go up but not in a way that you can enjoy the person you are next to if you're trying to sleep. The tray tables on the plane were so small I'm not even sure they would hold and iPad let alone a laptop if you had to work on business.

RDU
DEN
Excellent 9.0

Curtious

RDU
DEN
Excellent 10.0

Timely

Charge for carry on

RDU
DEN
Excellent 9.6

They offered to move people who looked crowded. Remember to prepay for luggage whether carryon or checked. Costs more at the airport.

Small seats, but that is with most or all airlines.

RDU
DEN
Okay 4.0

Not much

Paying for bags, paying for water and snacks, delayed because they overbooked and let too many people on the plane

Tue, Dec 26
RDU
DEN
10h 47m
Tue, Jan 2
DEN
RDU
6h 23m
$1064
Trip: 8 days
7.8GoodShow reviews
Overall 7.8 Good
Based on 14235 reviews
Overall
8.0
Boarding
8.1
Comfort
7.7
Crew
8.4
Entertainment
7.5
Food
7.3
GSO
ATL
Excellent 10.0

Plane nice and comfortable

MSP
YXE
Excellent 9.3

I was traveling for medical reasons and the Delta crew took great care of me, made sure I was at my connecting gate on time, and even put me in a better seat on the plane. Not sure if that was a coincidental upgrade, or intentional, but it was perfect.

ATL
DFW
Excellent 10.0

My entire flight experience was delightful. Was dry impressed with the staff both at Hartsfield-Jackson and DFW...and our flight crew was positively sublime.

SEA
LAX
Okay 5.3

Mu seat!

My baggage took for to long to arrive

ZAG
CDG
Good 6.0

Old plane, bad food & old crew

Mon, Dec 25
RDU
DEN
13h 23m
Thu, Dec 28
DEN
RDU
14h 00m
Trip: 4 days
5.9OkayShow reviews
Overall 5.9 Okay
Based on 85 reviews
Overall
5.9
Boarding
6.4
Comfort
5.4
Crew
6.8
Entertainment
4.5
Food
4.7
RDU
DEN
Mediocre 3.0

It was cheap

I had to find another flight on my own to replace the second leg of my trip from Denver to Salt Lake City. The customer service was ridiculous.

RDU
DEN
Mediocre 2.0

WE had a last minute emergency and didn't go.

RDU
DEN
Mediocre 2.3

Landing was good

Surprise cost of carry on bags Flight attendents reguests over and over to clean areah

RDU
DEN
Excellent 9.0

Curtious

RDU
DEN
Excellent 10.0

Timely

Charge for carry on

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The fares displayed include all taxes and fees for economy class travel and were found by the provider in the last 72 hours. Seats are limited and may not be available on all flights and days. Fares are subject to change and may not be available on all flights or dates of travel. Some carriers charge additional fees for extra checked bags. Please check the carriers' sites.