Latest deals
Insights
When to book
FAQs
Reviews
Price Alerts

Cheap flights from Denver to Duluth from $133

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Denver to Duluth departing on 12/18. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
0 bags

Discover deals from 900+ travel sites with momondo.

Save money when you book flights with momondo

Big names and deals

Big names and deals

Search 100s of travel sites to compare prices.

Filter for what you want

Filter for what you want

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

Trusted and free

Trusted and free

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

Price Alerts

Price Alerts

Not ready to book? to track prices.
Search flight deals

Find the cheapest flights from Denver to Duluth

Cheap round-trip flights

Enter your travel dates to find the best prices.
Delta Logo
5:45 am - 11:20 amDEN-DLH
4h 35m1 stop
Delta Logo
11:56 am - 4:51 pmDLH-DEN
5h 55m1 stop
$238Delta
Find Deal
Sat, Dec 13 - Tue, Jan 6
Delta Logo
5:45 am - 11:21 amDEN-DLH
4h 36m1 stop
Delta Logo
5:10 am - 10:03 amDLH-DEN
5h 53m1 stop
$268Delta
Find Deal
Thu, Nov 20 - Mon, Nov 24
United Airlines Logo
6:00 am - 2:30 pmDEN-DLH
7h 30m1 stop
United Airlines Logo
3:05 pm - 9:59 pmDLH-DEN
7h 54m1 stop
$273United Airlines
Find Deal
Fri, Jan 9 - Sat, Jan 10
Delta Logo
5:45 am - 11:20 amDEN-DLH
4h 35m1 stop
Delta Logo
8:00 am - 2:02 pmDLH-DEN
7h 02m1 stop
$303Delta
Find Deal
Sat, Dec 13 - Thu, Jan 8
Delta Logo
11:10 am - 10:07 amDEN-DLH
21h 57m1 stop
Delta Logo
4:20 pm - 10:36 pmDLH-DEN
7h 16m1 stop
$332Delta
Find Deal
Sat, Mar 7 - Wed, Mar 11
Delta Logo
5:45 am - 11:20 amDEN-DLH
4h 35m1 stop
Delta Logo
4:24 pm - 7:42 pmDLH-DEN
4h 18m1 stop
$352Delta
Find Deal
Sun, Dec 7 - Thu, Dec 11
Delta Logo
6:50 pm - 2:24 pmDEN-DLH
18h 34m2 stops
Delta Logo
4:20 pm - 10:36 pmDLH-DEN
7h 16m1 stop
$362Delta
Find Deal
Sat, Mar 7 - Wed, Mar 11
Delta Logo
5:45 am - 11:20 amDEN-DLH
4h 35m1 stop
Delta Logo
8:00 am - 2:02 pmDLH-DEN
7h 02m1 stop
$363Delta
Find Deal
Sat, Dec 13 - Mon, Jan 5
Delta Logo
6:50 pm - 2:24 pmDEN-DLH
18h 34m2 stops
Delta Logo
4:20 pm - 10:36 pmDLH-DEN
7h 16m1 stop
$372Delta
Find Deal
Sat, Mar 7 - Wed, Mar 11
United Airlines Logo
6:00 am - 2:22 pmDEN-DLH
7h 22m1 stop
United Airlines Logo
3:05 pm - 10:00 amDLH-DEN
19h 55m2 stops
$397United Airlines
Find Deal
Sat, Dec 13 - Thu, Jan 8

Delta flights from Denver to Duluth

Our best Delta deals on Denver to Duluth flight tickets
Delta
Dec 13
DEN5:45 amDenver Intl
4h 35m
1 stop
DLH11:20 amDuluth Intl
Jan 6
DLH11:56 amDuluth Intl
5h 55m
1 stop
DEN4:51 pmDenver Intl
$238
Find similar
Delta
Nov 20
DEN5:45 amDenver Intl
4h 36m
1 stop
DLH11:21 amDuluth Intl
Nov 24
DLH5:10 amDuluth Intl
5h 53m
1 stop
DEN10:03 amDenver Intl
$268
Find similar
Delta
Dec 13
DEN5:45 amDenver Intl
4h 35m
1 stop
DLH11:20 amDuluth Intl
Jan 8
DLH8:00 amDuluth Intl
7h 02m
1 stop
DEN2:02 pmDenver Intl
$303
Find similar

United Airlines flights from Denver to Duluth

Our best United Airlines deals on Denver to Duluth flight tickets
United Airlines
Jan 9
DEN6:00 amDenver Intl
7h 30m
1 stop
DLH2:30 pmDuluth Intl
Jan 10
DLH3:05 pmDuluth Intl
7h 54m
1 stop
DEN9:59 pmDenver Intl
$273
Find similar
United Airlines
Dec 13
DEN6:00 amDenver Intl
7h 22m
1 stop
DLH2:22 pmDuluth Intl
Jan 8
DLH3:05 pmDuluth Intl
19h 55m
2 stops
DEN10:00 amDenver Intl
$397
Find similar
United Airlines
Jan 9
DEN6:00 amDenver Intl
7h 30m
1 stop
DLH2:30 pmDuluth Intl
Jan 10
DLH3:05 pmDuluth Intl
19h 55m
2 stops
DEN10:00 amDenver Intl
$442
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from Denver to Duluth that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, momondo users made 832,500 searches. Data last updated November 5, 2025.
Use the filters below to find and compare flights from Denver to Duluth that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

DenverDuluth

DEN - DLH

DENDLH

Denver Intl

Sat 12/13

5:45 am-11:20 am

1 stop4h 35m

Duluth Intl

Tue 1/6

11:56 am-4:51 pm

1 stop5h 55m

$238

DenverDuluth

DEN - DLH

DENDLH

Denver Intl

Thu 11/20

5:45 am-11:21 am

1 stop4h 36m

Duluth Intl

Mon 11/24

5:10 am-10:03 am

1 stop5h 53m

$268

DenverDuluth

DEN - DLH

DENDLH

Denver Intl

Fri 1/9

6:00 am-2:30 pm

1 stop7h 30m

Duluth Intl

Sat 1/10

3:05 pm-9:59 pm

1 stop7h 54m

$273

DenverDuluth

DEN - DLH

DENDLH

Denver Intl

Sat 12/13

5:45 am-11:20 am

1 stop4h 35m

Duluth Intl

Thu 1/8

8:00 am-2:02 pm

1 stop7h 02m

$303

DenverDuluth

DEN - DLH

DENDLH

Denver Intl

Sat 3/7

11:10 am-10:07 am

1 stop21h 57m

Duluth Intl

Wed 3/11

4:20 pm-10:36 pm

1 stop7h 16m

$332

DenverDuluth

DEN - DLH

DENDLH

Denver Intl

Sun 12/7

5:45 am-11:20 am

1 stop4h 35m

Duluth Intl

Thu 12/11

4:24 pm-7:42 pm

1 stop4h 18m

$352

DenverDuluth

DEN - DLH

DENDLH

Denver Intl

Sat 3/7

6:50 pm-2:24 pm

2 stops18h 34m

Duluth Intl

Wed 3/11

4:20 pm-10:36 pm

1 stop7h 16m

$362

DenverDuluth

DEN - DLH

DENDLH

Denver Intl

Sat 12/13

5:45 am-11:20 am

1 stop4h 35m

Duluth Intl

Mon 1/5

8:00 am-2:02 pm

1 stop7h 02m

$363

DenverDuluth

DEN - DLH

DENDLH

Denver Intl

Sat 3/7

6:50 pm-2:24 pm

2 stops18h 34m

Duluth Intl

Wed 3/11

4:20 pm-10:36 pm

1 stop7h 16m

$372

DenverDuluth

DEN - DLH

DENDLH

Denver Intl

Sat 12/13

6:00 am-2:22 pm

1 stop7h 22m

Duluth Intl

Thu 1/8

3:05 pm-10:00 am

2 stops19h 55m

$397

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
1
2

See travel insights to Duluth from

How to get the cheapest flight ticket from Denver to Duluth

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 Duluth?

The cheapest month to fly to Duluth from Denver is in August. Flight prices, which tend to average around $267, are often lower during this time because this is during the off-season. If you aren’t able to travel during the month of August, then book flights to Duluth from Denver during November instead. Flights to Duluth in November, while not as cheap as those in August, still average around $296.

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

The cheapest day to depart from Denver to Duluth is on a Monday when prices can be found for as low as $223. On the other hand, Saturday is the most expensive day to depart from Denver because it is more convenient for both business and leisure travelers. As a result, prices tend to be around $408.

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

Flying to Duluth from Denver in the evening is the least expensive time of day to depart. momondo users have found prices as low as $268 when looking at flights departing in the evening. In contrast, the most expensive time of day to depart to Duluth is in the morning when prices are around $367.

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

You are more likely to see cheaper flights to Duluth from Denver when booking weeks ahead of your departure date. In general, you can expect to find flights to Duluth for around $368 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Duluth from Denver for as low as $165 on momondo.

How have Denver to Duluth flight prices changed over time?

When to book flights from Denver to Duluth

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

Cheap Denver to Duluth (DEN to DLH) flight deals and tips

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

Direct flights

None
There are no direct flights from Denver to Duluth. There are no popular flight routes from Denver to Duluth.
Search flight deals

  • How far is Denver Intl to Duluth Intl by plane?

    There are 808.1 mi between Denver Intl and Duluth Intl. Typically, this will take 3h 51m by plane in normal conditions.

  • When did momondo last update prices for flights from Denver Intl Airport to Duluth Intl Airport?

    Prices for flights from Denver Intl Airport to Duluth Intl Airport are refreshed on a daily basis.

  • How many operators does momondo search for flights from Denver Intl Airport to Duluth Intl Airport?

  • How old do you have to be to fly from Denver Intl Airport to Duluth Intl Airport?

    Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Denver Intl Airport to Duluth Intl Airport.

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

    The travel and health documents you'll need for your trip to Duluth 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 Duluth 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 airline from Denver to Duluth?

Best airlines flying from Denver to Duluth

Compare and see reviews for airlines that fly from Denver to Duluth with momondo
Airline
Rating
Free Cancellation
Price
Sun Country AirPriceFrom $68Free CancellationRating
6.9
335 reviews
Search Sun Country Air flights
DeltaPriceFrom $238Free CancellationRating
7.9
8,004 reviews
Search Delta flights
United AirlinesPriceFrom $298Free CancellationRating
7.4
9,004 reviews
Search United Airlines flights

Traveling to a place near Duluth?

Book flights to Duluth if you plan to visit one of these locations
Two Harbors
Hayward
Superior
Cloquet

Why use momondo?

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

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 Denver to Duluth for you.

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

Yes. momondo allows you to filter the results for Denver to Duluth flights to just show those with flexible booking policies.

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

Once you have performed a search in the form on the page, momondo provides useful filters and insights. We can show you the cheapest days and times to fly as well as help filter your options to help you make an informed choice when booking flights to Duluth from Denver.

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

If you are simply researching potential flights to Duluth, momondo offers a useful price alert feature which will track prices for flights to Duluth from Denver and alert you when they change.

An easier way to manage your Duluth 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
Fri 12/5
Fri 12/12
By creating a price alert you accept our terms of use and privacy policy.

Find better results for your trip to the United States