$68 Cheap Flights from Denver (DEN) to Duluth (DLH)

View $68 flight on Fri, Dec 19, 2025Opens in a new window

Popular airlines from Denver Intl. Airport (DEN) to Duluth, MN (DLH-Duluth Intl.)

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Cheap Flights from Denver to Duluth (DEN-DLH)

Prices were available within the past 7 days and start at $68 for one-way flights and $136 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Sun Country Airlines
Fri, Dec 19 - Mon, Dec 22
DEN
Denver
DLH
Duluth
$136 Roundtrip, just found
$136
Roundtrip
just found
Select Sun Country Airlines flight, departing Fri, Dec 19 from Denver to Duluth, returning Mon, Dec 22, priced at $136 just found
Sun Country Airlines
Sun, Nov 16 - Thu, Nov 20
DEN
Denver
DLH
Duluth
$156 Roundtrip, found 2 days ago
$156
Roundtrip
found 2 days ago
Select Sun Country Airlines flight, departing Sun, Nov 16 from Denver to Duluth, returning Thu, Nov 20, priced at $156 found 2 days ago
Sun Country Airlines
Thu, Dec 25 - Sun, Jan 4
DEN
Denver
DLH
Duluth
$176 Roundtrip, found 4 days ago
$176
Roundtrip
found 4 days ago
Select Sun Country Airlines flight, departing Thu, Dec 25 from Denver to Duluth, returning Sun, Jan 4, priced at $176 found 4 days ago
Delta
Wed, Feb 25 - Fri, Feb 27
DEN
Denver
DLH
Duluth
$186 Roundtrip, found 5 days ago
$186
Roundtrip
found 5 days ago
Select Delta flight, departing Wed, Feb 25 from Denver to Duluth, returning Fri, Feb 27, priced at $186 found 5 days ago
Sun Country Airlines
Fri, Dec 19 - Tue, Dec 23
DEN
Denver
DLH
Duluth
$196 Roundtrip, just found
$196
Roundtrip
just found
Select Sun Country Airlines flight, departing Fri, Dec 19 from Denver to Duluth, returning Tue, Dec 23, priced at $196 just found
Sun Country Airlines
Sun, Nov 9 - Sun, Nov 16
DEN
Denver
DLH
Duluth
$206 Roundtrip, found 17 hours ago
$206
Roundtrip
found 17 hours ago
Select Sun Country Airlines flight, departing Sun, Nov 9 from Denver to Duluth, returning Sun, Nov 16, priced at $206 found 17 hours ago
Delta
Sat, Dec 13 - Fri, Dec 19
DEN
Denver
DLH
Duluth
$211 Roundtrip, found 8 hours ago
$211
Roundtrip
found 8 hours ago
Select Delta flight, departing Sat, Dec 13 from Denver to Duluth, returning Fri, Dec 19, priced at $211 found 8 hours ago
Delta
Tue, Feb 24 - Tue, Mar 3
DEN
Denver
DLH
Duluth
$216 Roundtrip, found 5 days ago
$216
Roundtrip
found 5 days ago
Select Delta flight, departing Tue, Feb 24 from Denver to Duluth, returning Tue, Mar 3, priced at $216 found 5 days ago
Delta
Sat, Dec 13 - Fri, Dec 19
DEN
Denver
DLH
Duluth
$229 Roundtrip, found 8 hours ago
$229
Roundtrip
found 8 hours ago
Select Delta flight, departing Sat, Dec 13 from Denver to Duluth, returning Fri, Dec 19, priced at $229 found 8 hours ago
United
Wed, Feb 25 - Fri, Feb 27
DEN
Denver
DLH
Duluth
$232 Roundtrip, found 20 hours ago
$232
Roundtrip
found 20 hours ago
Select United flight, departing Wed, Feb 25 from Denver to Duluth, returning Fri, Feb 27, priced at $232 found 20 hours ago

Find the cheapest month to fly from Denver (DEN) to Duluth (DLH)

December is typically the cheapest month to fly

From $136 - $568 per traveler.

Alternative airports near Duluth

Prices were available within the past 7 days. Prices and availability are subject to change.

Select flight to Duluth Intl. DLH. Cheapest and Closest option available. Average driving time to city center is 11 minutes. Flights from $253
DLH
Duluth Intl.
CheapestClosest
Average driving time to city center11 min
Flights from $253
Flights from Denver (DEN) to Duluth (DLH)
Origin airport
Denver Intl.
Destination airport
Duluth Intl.
Airlines serving
Delta, Sun Country Airlines, United
Roundtrip price
$136
Distance
790 mi

Denver to Duluth Flights

The cheapest times to fly from Denver to Duluth

On average, Thursday can be the cheapest time to fly, according to data from the Airlines Reporting Corporation (ARC), one of the world's biggest databases for global airline sales. The data reveals that you could save up to 16% by flying on a Thursday—the cheapest day to travel on average—instead of a Sunday—the most expensive. Some of the most affordable flights from Denver to Duluth are during the month of December. You can find some of the cheapest flights from Denver to Duluth with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Denver to Duluth

Sunday is one of the best days to book for cheap flights from Denver to Duluth: Tickets reserved on a Sunday cost between 6% and 13% less than those reserved on a Friday, according to ARC data. The data also suggests booking early can also lead to cheaper airfares. You could save 24% by buying your tickets for domestic flights at least a month in advance and 10% by booking international flights 2 months in advance.

 

How to find cheap round-trip tickets from Denver to Duluth

Being flexible with your dates and using Expedia's Price Drop Protection and Price Tracking features are some of the best ways of finding a cheap ticket from Denver to Duluth in 2025. You can also book with separate airlines for your outbound and return journeys, from $68 one-way. Expedia also offers Price Drop Protection, so if the cost of your airfare goes down after booking, you'll receive a credit for the difference*. This is available for a small fee, and is free to One Key Gold and Platinum tier members.

 

Expedia's Price Tracking feature means you can stay on top of airfares without manually checking every day. It sends you automated price alerts for cheap Denver to Duluth flights and uses historical data to indicate when the best time to book is. Download Expedia's free app to activate this handy tool in a few easy taps.

 

You could also save big by booking one of Expedia's vacation packages. Bundling together your Denver to Duluth airfare with your accommodations and car rental is often cheaper than booking everything separately. There’s also One Key, Expedia's generous rewards program. Join for free and you could earn One Key cash on most bookings to save on future adventures.

 

*Terms apply.

 

Disclaimer: ARC The statistics are based on average round-trip ticket prices between January and August 2023. The percentages you see are averages.

 

Frequently asked questions

How much does a flight from Denver Intl. Airport (DEN) to Duluth Intl. Airport (DLH) cost?
Secure a cheap one-way flight from $68 or cheap return flight from $136 from Denver Intl. Airport (DEN) to Duluth Intl. Airport (DLH) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to see our cheapest flight offers on this route.
What is the cheapest month to fly from Denver Intl. Airport (DEN) to Duluth Intl. Airport (DLH)?
The cheapest month to fly from DEN to DLH is December, when demand is low. Off-peak months are typically when better flight deals are available between these airports.
What is the cheapest airline that flies from Denver Intl. Airport (DEN) to Duluth Intl. Airport (DLH)?
To find the cheapest airline flying from DEN to DLH, use Expedia's filter tool. Customize your search based on what's important to you, such as preferred carriers and ideal departure window. You can then sort your results by "Price (lowest to highest)" to see the cheapest flights first.
How many flights per day from Denver Intl. Airport (DEN) to Duluth Intl. Airport (DLH)?
You'll need to take a flight with a layover if you're traveling from Denver Intl. Airport (DEN) to Duluth Intl. Airport (DLH). Direct flights don't operate daily on this route. However, just filter your search to include one or two stops to discover the best option for your trip.
What day of the week has the most flights from DEN to DLH?
Friday is usually the busiest day for flights, while Tuesday tends to be the quietest.* Just remember that flight schedules can change based on various factors, such as the time of year and carrier.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from Denver Intl. Airport (DEN) to Duluth Intl. Airport (DLH)?
To avoid possible delays on the Denver Intl. Airport (DEN) to Duluth Intl. Airport (DLH) route, fly before 3 PM. Later departures have a 22% higher chance of being canceled.**Most reliable time of the day and month to travel recommendation is based on January through August 2024 flight status data sourced from OAG's global flight data platform.
Is it cheaper to buy a plane ticket from Denver Intl. Airport (DEN) to Duluth Intl. Airport (DLH) last-minute?
Booking your plane ticket from DEN to DLH shortly before your getaway is usually more expensive. But if you're flexible with your itinerary, you could land a cheap last-minute fare.
Is it cheaper to book a DEN to DLH flight and hotel package?
You can save money by securing a DEN to DLH flight and hotel package compared to booking separately. In fact, travelers could save hundreds of dollars by bundling with Expedia. And it's simple to manage it all in one place. After selecting your ideal flights and accommodations, consider adding extras including car rentals, tours and activities.
Can I cancel or change the date of my flight from Denver Intl. Airport (DEN) to Duluth Intl. Airport (DLH)?
Usually, it's possible to cancel or reschedule your DEN to DLH flight. However, for bookings made more than 24 hours ago, additional fees may apply. Check your airline's policies in your itinerary to see what changes are possible and if any costs are involved. You'll also find more details on our Customer Service portal.

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*Available to One Key members.