$58 Cheap Flights from Denver (DEN) to Duluth (DLH)

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Find available prices by choosing your travel dates.

Cheap Flights from Denver to Duluth (DEN-DLH)

Prices were available within the past 7 days and start at $58 for one-way flights and $116 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Sun Country Airlines
Sun Country Airlines
Sun Country Airlines
Sun Country Airlines
Sun Country Airlines
Sun Country Airlines
Sun Country Airlines
Sun Country Airlines
Delta
United
Flights from Denver (DEN) to Duluth (DLH)
Origin airport
Denver Intl.
Destination airport
Duluth Intl.
Airlines serving
Delta, Sun Country Airlines, United
Roundtrip price
$116
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 August. 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 $58 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

Is it cheaper to buy a plane ticket from DIA airport to Duluth Intl. Airport last minute?
Being the spontaneous type is an awesome way to travel around, but it’s not necessarily the wisest way to pick up a cheap flight. Think about booking your Denver Intl. Airport (DEN) to Duluth Intl. Airport trip well in advance rather than waiting until the last minute. Based on flight pricing and demand studies in 2022, we have found that the best time to book domestic flights is between 28 – 35 days ahead of the departure date, and international flights three to four months in advance. Leave your spontaneous side for when you’re exploring Duluth Intl. Airport!
What airports do you fly into for Duluth from Denver?
With Duluth Intl. Airport (DLH), Chisholm-Hibbing Airport (HIB) and Duluth, MN (SUW-Richard I. Bong) to choose from, traveling from Denver to Duluth is easy. The city’s major hub, Duluth Intl. Airport (DLH), is roughly 5 mi northwest of the downtown area. Besides the price of fares, consider things like the ease of getting from the airport and the distance to your hotel when choosing where to fly into. Get your Duluth trip off to a fun start by checking out University of Minnesota Duluth and Bayfront Festival Park.
Can I change the date of my flight from Denver Intl. Airport (DEN) to DLH?
You can quickly make changes to your Denver Intl. Airport (DEN) to DLH flight through the Expedia Trips portal. But before you begin, review the fare conditions in your itinerary to learn what you can do and if fees apply for changes. Some airlines have a change fee per person, on top of any difference in fares. But if you booked in the last 24 hours, you may be able to cancel for free and organize new flights. You can also take a look at our Customer Service portal for more handy information and to connect with our Virtual Agent.

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