Cheap Flights to Duluth International Airport

Heading to Minnesota’s Twin Ports region? Discover flights to Duluth International Airport (DLH), the second-largest airport in Minnesota, with nonstop service to key US hubs.

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About Duluth International Airport (DLH)

Duluth International Airport serves Duluth and the surrounding Twin Ports region, straddling the Minnesota-Wisconsin border along the southwestern tip of Lake Superior. The airport offers around 8 scheduled flights per day across its three nonstop routes and is prized by travelers for its convenient location, quick security, and stress-free experience compared to larger regional airports.

Airport code

 DLH (ICAO: KDLH)

Location

 Duluth, Minnesota, United States

Airlines serving

Delta Air Lines, United Airlines, Sun Country Airlines

Popular Routes to and from Duluth

Minneapolis and Chicago anchor Duluth’s year-round schedule, alongside a seasonal leisure route to Fort Myers.

Route Type

Popular Connections

Year-Round

Minneapolis/St. Paul (Delta), Chicago O’Hare (United)

Seasonal

Fort Myers (Sun Country, Mondays and Fridays)

Best Time to Book Cheap Flights

Booking a few weeks ahead generally works well for routes into Duluth. The peak summer season sees the strongest demand for Duluth’s Lake Superior attractions, so booking further ahead is recommended for travel during June through August.

About Duluth, Minnesota

Duluth is a port city on the southwestern tip of Lake Superior, celebrated for its dramatic harbor and the iconic Ship Canal lift bridge. The city’s Lakewalk, Canal Park, and proximity to northern Minnesota’s Boundary Waters Canoe Area Wilderness make it a popular destination for outdoor enthusiasts, while its historic hillside neighborhoods and vibrant dining scene appeal to a wide range of visitors year-round.

Things to Know When Flying Into Duluth

Delta offers daily nonstop service to Minneapolis, the airport’s busiest route, with around 25 weekly departures.


United Airlines connects Duluth to Chicago O’Hare, providing onward connections across United’s international network.


Sun Country Airlines operates a seasonal leisure route to Fort Myers, Florida, running on Mondays and Fridays.


There are no international flights from Duluth; connections route through Minneapolis or Chicago.

Why Book Your Duluth Flights with Airline Tickets Services

Access to unpublished airfare deals

Help finding the best Delta and United routing options

Assistance timing your trip around Duluth’s seasonal highlights

Guidance on the best time to book for your travel dates

Support across major global airline partners

FAQs — Flights to International Airport

Delta Air Lines, United Airlines, and Sun Country Airlines serve Duluth International Airport, connecting to Minneapolis, Chicago, and seasonally Fort Myers.

No, Duluth International Airport operates domestic flights only. International travelers can connect through Minneapolis or Chicago.

Duluth International Airport offers nonstop service to 3 destinations: Minneapolis (Delta), Chicago (United), and seasonally Fort Myers (Sun Country).

Duluth International Airport is located close to the city center, making it a convenient gateway to Duluth and the surrounding Lake Superior region.

Booking a few weeks ahead generally works well, with the summer months seeing the strongest demand for Duluth's outdoor recreation and Lake Superior attractions.

Ready to Book Your Flight to Duluth?

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