$48 Cheap flights from Duluth Intl. to Denver Intl. (DLH to DEN)

For info on any current Denver Intl. Airport (DEN) travel advice and quarantine requirements, visit the Covid-19 Travel Advisor. Check before you arrange your flight, so you don’t get caught out.

Be prepared for a stopover when jetting from Duluth Intl. Airport to DIA airport. No direct flights are available on this route, however United Airlines, Delta and KLM will get you to Denver as swiftly as possible.

For more info about changing your flight to Denver Intl. Airport (DEN), please visit our Customer Service Portal.

Exit the airplane feeling well-rested by having a nap and a meal during your flight to DIA airport. With an usual travel time of 3 hours and 50 minutes from Duluth Intl. Airport (DLH), you’ll have plenty of time to indulge in both.

After taking off from DLH, you’ll cover 790 mi before taxiing into Denver Airport. That should give you enough time to read a few chapters of your novel and perhaps even manage a short power nap.

Unfortunately, you won’t find any airlines that fly straight from DLH to DEN. But don’t let that small detail stop you. Use your stopover time as an opportunity to check out the local fare, stretch your legs and potentially discover a new city to explore further one day.

From the moment you enter the departure terminal to when you leave the arrivals terminal, if you’re flying with United Airlines, Southwest Airlines or Frontier Airlines you can be sure that COVID-19 measures and social distancing rules have been adhered to. Many airlines have introduced capped capacity flights and keeping the middle seat empty.

This just in! Airfares offered on Thursdays tend to be the cheapest, according to flight demand on Travelocity in 2021. Tuesday and Wednesday prices are also good, but you may want to prepare your budget if booking during the weekend, as data shows that is when prices are generally at their highest.

Frequent travelers may already know this, but earlier in the week can be the cheapest time to fly. In 2021, flights departing on a Monday were generally the cheapest of the week, whereas you may pay a premium for weekend flights when demand is usually high. On average, tickets were most expensive for Saturday departures, so if you need to fly out on a weekend, you might look for deals ahead of time.

Trying to figure out how early you should book your flight? It’s possible to start comparing international airfares on Travelocity up to 12 months in advance. However, it does depend on the carrier as not all airlines release their prices that far out. According to our 2021 flight demand trends, last minute planners can still bag a bargain with some of the cheapest fares appearing 0-2 weeks prior to their travel dates.*According to flight demand on Travelocity.com from January to December 2021. Savings are subject to change based on departure location, date and destination.