Find Cheap Flights from Denver International to Duluth International (DEN - DLH)

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Good to Know

Average Price:
$482
(avg. price over the last 2 weeks)
Good Deal:
$407
or less (round trip)

When to Book Flights from Denver International to Duluth International

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 $407 or less.
The cheapest flight from Denver International to Duluth International was found 60 days before departure, on average.
Book at least 1 week before departure in order to get a below-average price.
Morning departure is around 21% more expensive 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 Denver International to Duluth International Flights

How long does a flight from Denver International to Duluth International take?
An average nonstop flight takes 3h 39m, covering a distance of 790 miles.
Which airlines provide the cheapest flights from Denver International to Duluth International?
In the past 3 days, the cheapest round-trip tickets were found on Delta ($187), Multiple Airlines ($194) and United ($245).
Do I need a passport to fly between Denver International and Duluth International?
No.
What’s the cheapest day of the week to fly Denver International to Duluth International?
For Denver International to Duluth International, Thursday is the cheapest day to fly on average and Tuesday is the most expensive. Flying from Duluth International back to Denver International, the best deals are generally found on Tuesday, with Wednesday being the most expensive.

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

Airports
Origin
Denver
$187
only
$187
Destination
Duluth
$187
only
$187
Thu, Apr 19
DEN
DLH
3h 40m
Tue, Apr 24
DLH
DEN
7h 01m
Trip: 6 days
7.8GoodShow reviews
Overall 7.8 Good
Based on 16166 reviews
Overall
8.0
Boarding
8.1
Comfort
7.8
Crew
8.4
Entertainment
7.5
Food
7.4
FLL
ATL
Excellent 8.0

Departure was right on time and we actually arrived 15 minutes early.

The inflight monitor worked but none of the data (GPS altitude or speed) was working.

LAX
MSP
Excellent 9.0

Had to sit in the middle row and I wasn’t given the option to get an aisle sit during check in.

No flexibility for seats

SLC
YYZ
Excellent 9.6

Z

MSP
CLT
Excellent 10.0

It was great because I was able to get an aisle seat.

Like it all

PIT
ATL
Excellent 10.0

I have always known of airlines to offer preboarding to those military members in uniform or on official orders. Delta took it one step further and allows prior service members to board also.

Wed, Jul 4
DEN
DLH
5h 03m
Wed, Jul 11
DLH
DEN
3h 50m
Trip: 8 days
Overall 0.0 Poor
Based on 0 reviews
Wed, Apr 4
DEN
DLH
4h 58m
Sun, Apr 8
DLH
DEN
6h 33m
Trip: 5 days
7.0GoodShow reviews
Overall 7.0 Good
Based on 54764 reviews
Overall
7.2
Boarding
7.4
Comfort
7.0
Crew
7.7
Entertainment
6.5
Food
6.4
PWM
IAD
Mediocre 2.0

Nothing was good about this airline with the exception of the baggage crew that finally helped me in Washington Ronald Regan Airport

My flight out of Portland was canceled and it took hours to rebook. I had to fly American Airline to Washington DCA where I roamed the airport at 9pm looking for someone from United. The crew in Portland ME told me the gate person would have a hotel for me.... The baggage crew had to help me.

IAD
NRT
Excellent 10.0

For a little over $2000 you get an economy seat non-stop from DC to Tokyo and back. Meals were good. As economy seats go, it's comfortable. Midweek the flight is about half to two thirds full. So you might be able to stretch out even!

EWR
TPA
Excellent 8.0

Made up time for delayed departure

So cramped. Sat next to very obese person....spilled onto my seat

LAX
ORD
Good 7.0

Crew was nice

Plane was delayed for 4 hours, should have given us miles or a voucher

ZRH
EWR
Excellent 9.6

more room in the seats

movie choices were meh, but I guess that's a personal preference

Thu, Jul 5
DEN
DLH
3h 39m
Wed, Jul 11
DLH
DEN
3h 50m
Trip: 7 days
7.8GoodShow reviews
Overall 7.8 Good
Based on 16166 reviews
Overall
8.0
Boarding
8.1
Comfort
7.8
Crew
8.4
Entertainment
7.5
Food
7.4
FLL
BOS
Good 6.3

Food and nice crew

No tvs and bad WiFi

FLL
ATL
Excellent 8.0

Departure was right on time and we actually arrived 15 minutes early.

The inflight monitor worked but none of the data (GPS altitude or speed) was working.

JFK
MCO
Excellent 8.0

Entertainment system great. Individual choices include recent movies. On board staff very nice

We had issues with baggage. Delta was supposed to transfer 4 bags to Disney for Magic Express transportation. Only 3 went. Disney tried hard to fix problem, and even gave us something to ameliorate the situation. Delta took hard line, wasn't helpful and gave nothing. It took 2 days to find bag.

PIT
ATL
Excellent 10.0

I have always known of airlines to offer preboarding to those military members in uniform or on official orders. Delta took it one step further and allows prior service members to board also.

ATL
PIT
Excellent 9.0

Pilots and crew did an amazing job during unstable air coming into Pittsburgh. Great job.

Fri, Jul 6
DEN
DLH
6h 03m
Wed, Jul 11
DLH
DEN
3h 50m
Trip: 6 days
Overall 0.0 Poor
Based on 0 reviews
Tue, Mar 20
DEN
DLH
3h 46m
Wed, Mar 21
DLH
DEN
4h 24m
Trip: 2 days
7.8GoodShow reviews
Overall 7.8 Good
Based on 16166 reviews
Overall
8.0
Boarding
8.1
Comfort
7.8
Crew
8.4
Entertainment
7.5
Food
7.4
ATL
PIT
Excellent 9.0

Pilots and crew did an amazing job during unstable air coming into Pittsburgh. Great job.

FLL
ATL
Excellent 8.0

Departure was right on time and we actually arrived 15 minutes early.

The inflight monitor worked but none of the data (GPS altitude or speed) was working.

SLC
YYZ
Excellent 8.0

was a difficult transition from delta to west jet in Toronto and we almost missed the flight

MSP
CLT
Excellent 10.0

It was great because I was able to get an aisle seat.

Like it all

LAX
MCO
Excellent 10.0

I am used to flying Frontier because of cost but recently traveled Delta and boy did I feel completely spoiled! Not only did my other half get our bags for free due to his status with Delta but the amenities they offer and the comfort of the economy seats compared to other airlines is a major difference. As a chronic pain patient, if I can find a Delta flight for a little more, I will be booking with them for sure! Highly recommend them!

Thu, Apr 19
DEN
DLH
3h 40m
Mon, Apr 23
DLH
DEN
4h 22m
Trip: 5 days
7.8GoodShow reviews
Overall 7.8 Good
Based on 16166 reviews
Overall
8.0
Boarding
8.1
Comfort
7.8
Crew
8.4
Entertainment
7.5
Food
7.4
JFK
MCO
Excellent 8.0

Entertainment system great. Individual choices include recent movies. On board staff very nice

We had issues with baggage. Delta was supposed to transfer 4 bags to Disney for Magic Express transportation. Only 3 went. Disney tried hard to fix problem, and even gave us something to ameliorate the situation. Delta took hard line, wasn't helpful and gave nothing. It took 2 days to find bag.

MSP
CLT
Excellent 10.0

It was great because I was able to get an aisle seat.

Like it all

LAX
MSP
Excellent 9.0

Had to sit in the middle row and I wasn’t given the option to get an aisle sit during check in.

No flexibility for seats

FLL
BOS
Good 6.3

Food and nice crew

No tvs and bad WiFi

JFK
CDG
Excellent 10.0

The food and the service

Tue, Apr 3
DEN
DLH
5h 33m
Mon, Apr 9
DLH
DEN
4h 20m
Trip: 7 days
Overall 0.0 Poor
Based on 0 reviews
Thu, Apr 19
DEN
DLH
3h 40m
Sun, Apr 22
DLH
DEN
6h 29m
Trip: 4 days
Overall 0.0 Poor
Based on 0 reviews
Tue, Jul 3
DEN
DLH
4h 44m
Wed, Jul 11
DLH
DEN
3h 50m
Trip: 9 days
7.8GoodShow reviews
Overall 7.8 Good
Based on 16166 reviews
Overall
8.0
Boarding
8.1
Comfort
7.8
Crew
8.4
Entertainment
7.5
Food
7.4
MSP
CLT
Excellent 10.0

It was great because I was able to get an aisle seat.

Like it all

JFK
CDG
Excellent 10.0

The food and the service

SLC
YYZ
Excellent 8.0

was a difficult transition from delta to west jet in Toronto and we almost missed the flight

ATL
PIT
Excellent 9.0

Pilots and crew did an amazing job during unstable air coming into Pittsburgh. Great job.

JFK
MCO
Excellent 8.0

Entertainment system great. Individual choices include recent movies. On board staff very nice

We had issues with baggage. Delta was supposed to transfer 4 bags to Disney for Magic Express transportation. Only 3 went. Disney tried hard to fix problem, and even gave us something to ameliorate the situation. Delta took hard line, wasn't helpful and gave nothing. It took 2 days to find bag.

Wed, Jul 4
DEN
DLH
5h 03m
Sat, Jul 7
DLH
DEN
3h 50m
Trip: 4 days
Overall 0.0 Poor
Based on 0 reviews
Wed, Aug 29
DEN
DLH
3h 44m
Mon, Sep 3
DLH
DEN
5h 11m
Trip: 6 days
Overall 0.0 Poor
Based on 0 reviews
Sat, Jul 7
DEN
DLH
6h 48m
Wed, Jul 11
DLH
DEN
3h 50m
Trip: 5 days
7.8GoodShow reviews
Overall 7.8 Good
Based on 16166 reviews
Overall
8.0
Boarding
8.1
Comfort
7.8
Crew
8.4
Entertainment
7.5
Food
7.4
ATL
PIT
Excellent 9.0

Pilots and crew did an amazing job during unstable air coming into Pittsburgh. Great job.

SLC
YYZ
Excellent 9.6

Z

PIT
ATL
Excellent 10.0

I have always known of airlines to offer preboarding to those military members in uniform or on official orders. Delta took it one step further and allows prior service members to board also.

LAX
MCO
Excellent 10.0

I am used to flying Frontier because of cost but recently traveled Delta and boy did I feel completely spoiled! Not only did my other half get our bags for free due to his status with Delta but the amenities they offer and the comfort of the economy seats compared to other airlines is a major difference. As a chronic pain patient, if I can find a Delta flight for a little more, I will be booking with them for sure! Highly recommend them!

JFK
MCO
Excellent 8.0

Entertainment system great. Individual choices include recent movies. On board staff very nice

We had issues with baggage. Delta was supposed to transfer 4 bags to Disney for Magic Express transportation. Only 3 went. Disney tried hard to fix problem, and even gave us something to ameliorate the situation. Delta took hard line, wasn't helpful and gave nothing. It took 2 days to find bag.

Thu, Apr 5
DEN
DLH
5h 43m
Sat, Apr 7
DLH
DEN
6h 41m
Trip: 3 days
Overall 0.0 Poor
Based on 0 reviews
Thu, Jul 5
DEN
DLH
3h 39m
Sat, Jul 7
DLH
DEN
3h 50m
Trip: 3 days
7.8GoodShow reviews
Overall 7.8 Good
Based on 16166 reviews
Overall
8.0
Boarding
8.1
Comfort
7.8
Crew
8.4
Entertainment
7.5
Food
7.4
ATL
PIT
Excellent 9.0

Pilots and crew did an amazing job during unstable air coming into Pittsburgh. Great job.

MSP
CZM
Excellent 10.0

Everything went smoothly.

All was good.

FLL
ATL
Excellent 8.0

Departure was right on time and we actually arrived 15 minutes early.

The inflight monitor worked but none of the data (GPS altitude or speed) was working.

SLC
YYZ
Excellent 9.6

Z

FLL
BOS
Good 6.3

Food and nice crew

No tvs and bad WiFi

Mon, Jul 2
DEN
DLH
6h 03m
Wed, Jul 11
DLH
DEN
3h 50m
Trip: 10 days
Overall 0.0 Poor
Based on 0 reviews
Tue, Jul 3
DEN
DLH
4h 44m
Sat, Jul 7
DLH
DEN
3h 50m
Trip: 5 days
7.8GoodShow reviews
Overall 7.8 Good
Based on 16166 reviews
Overall
8.0
Boarding
8.1
Comfort
7.8
Crew
8.4
Entertainment
7.5
Food
7.4
JFK
CDG
Excellent 10.0

The food and the service

FLL
BOS
Good 6.3

Food and nice crew

No tvs and bad WiFi

PIT
ATL
Excellent 10.0

I have always known of airlines to offer preboarding to those military members in uniform or on official orders. Delta took it one step further and allows prior service members to board also.

FLL
ATL
Excellent 8.0

Departure was right on time and we actually arrived 15 minutes early.

The inflight monitor worked but none of the data (GPS altitude or speed) was working.

JFK
MCO
Excellent 8.0

Entertainment system great. Individual choices include recent movies. On board staff very nice

We had issues with baggage. Delta was supposed to transfer 4 bags to Disney for Magic Express transportation. Only 3 went. Disney tried hard to fix problem, and even gave us something to ameliorate the situation. Delta took hard line, wasn't helpful and gave nothing. It took 2 days to find bag.

Thu, Apr 5
DEN
DLH
5h 43m
Sun, Apr 8
DLH
DEN
6h 33m
Trip: 4 days
Overall 0.0 Poor
Based on 0 reviews
Tue, Apr 3
DEN
DLH
4h 58m
Sat, Apr 7
DLH
DEN
4h 33m
Trip: 5 days
Overall 0.0 Poor
Based on 0 reviews
Thu, May 3
DEN
DLH
3h 47m
Sun, May 6
DLH
DEN
5h 50m
Trip: 4 days
7.8GoodShow reviews
Overall 7.8 Good
Based on 16166 reviews
Overall
8.0
Boarding
8.1
Comfort
7.8
Crew
8.4
Entertainment
7.5
Food
7.4
LAX
MCO
Excellent 10.0

I am used to flying Frontier because of cost but recently traveled Delta and boy did I feel completely spoiled! Not only did my other half get our bags for free due to his status with Delta but the amenities they offer and the comfort of the economy seats compared to other airlines is a major difference. As a chronic pain patient, if I can find a Delta flight for a little more, I will be booking with them for sure! Highly recommend them!

ATL
PIT
Excellent 9.0

Pilots and crew did an amazing job during unstable air coming into Pittsburgh. Great job.

SLC
YYZ
Excellent 8.0

was a difficult transition from delta to west jet in Toronto and we almost missed the flight

FLL
BOS
Good 6.3

Food and nice crew

No tvs and bad WiFi

JFK
MCO
Excellent 8.0

Entertainment system great. Individual choices include recent movies. On board staff very nice

We had issues with baggage. Delta was supposed to transfer 4 bags to Disney for Magic Express transportation. Only 3 went. Disney tried hard to fix problem, and even gave us something to ameliorate the situation. Delta took hard line, wasn't helpful and gave nothing. It took 2 days to find bag.

Show more results

Denver International to Duluth International Flight Information

Flights Arrive in Duluth International
Flights Depart from Denver International
Flight Price $187
Distance 790 miles
Airlines Delta, United
*
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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.