$233 Cheap Flights from Rapid City (RAP) to Duluth (DLH)

View $233 flight on Thu, Oct 23, 2025Opens in a new window

Popular airlines from Rapid City Regional Airport (RAP) to Duluth, MN (DLH-Duluth Intl.)

Cheap Flights from Rapid City to Duluth (RAP-DLH)

Prices were available within the past 7 days and start at $233 for one-way flights and $314 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

United
Wed, Oct 22 - Sat, Oct 25
RAP
Rapid City
DLH
Duluth
$314 Roundtrip, found 3 days ago
$314
Roundtrip
found 3 days ago
Select United flight, departing Wed, Oct 22 from Rapid City to Duluth, returning Sat, Oct 25, priced at $314 found 3 days ago
Delta
Tue, Sep 23 - Tue, Oct 7
RAP
Rapid City
DLH
Duluth
$336 Roundtrip, found 2 days ago
$336
Roundtrip
found 2 days ago
Select Delta flight, departing Tue, Sep 23 from Rapid City to Duluth, returning Tue, Oct 7, priced at $336 found 2 days ago
United
Wed, Sep 10 - Sat, Sep 27
RAP
Rapid City
DLH
Duluth
$344 Roundtrip, found 2 days ago
$344
Roundtrip
found 2 days ago
Select United flight, departing Wed, Sep 10 from Rapid City to Duluth, returning Sat, Sep 27, priced at $344 found 2 days ago
Delta
Wed, Sep 3 - Fri, Sep 12
RAP
Rapid City
DLH
Duluth
$346 Roundtrip, found 2 days ago
$346
Roundtrip
found 2 days ago
Select Delta flight, departing Wed, Sep 3 from Rapid City to Duluth, returning Fri, Sep 12, priced at $346 found 2 days ago
United
Fri, Oct 24 - Sat, Oct 25
RAP
Rapid City
DLH
Duluth
$349 Roundtrip, found 3 days ago
$349
Roundtrip
found 3 days ago
Select United flight, departing Fri, Oct 24 from Rapid City to Duluth, returning Sat, Oct 25, priced at $349 found 3 days ago
Delta
Thu, Sep 4 - Fri, Sep 12
RAP
Rapid City
DLH
Duluth
$356 Roundtrip, found 2 days ago
$356
Roundtrip
found 2 days ago
Select Delta flight, departing Thu, Sep 4 from Rapid City to Duluth, returning Fri, Sep 12, priced at $356 found 2 days ago
Delta
Sat, Sep 6 - Tue, Sep 23
RAP
Rapid City
DLH
Duluth
$366 Roundtrip, found 2 days ago
$366
Roundtrip
found 2 days ago
Select Delta flight, departing Sat, Sep 6 from Rapid City to Duluth, returning Tue, Sep 23, priced at $366 found 2 days ago
Delta
Sat, Sep 6 - Fri, Sep 12
RAP
Rapid City
DLH
Duluth
$376 Roundtrip, found 2 days ago
$376
Roundtrip
found 2 days ago
Select Delta flight, departing Sat, Sep 6 from Rapid City to Duluth, returning Fri, Sep 12, priced at $376 found 2 days ago
Delta
Tue, Sep 30 - Fri, Oct 17
RAP
Rapid City
DLH
Duluth
$396 Roundtrip, found 2 days ago
$396
Roundtrip
found 2 days ago
Select Delta flight, departing Tue, Sep 30 from Rapid City to Duluth, returning Fri, Oct 17, priced at $396 found 2 days ago
United
Wed, Oct 22 - Fri, Oct 24
RAP
Rapid City
DLH
Duluth
$413 Roundtrip, found 3 days ago
$413
Roundtrip
found 3 days ago
Select United flight, departing Wed, Oct 22 from Rapid City to Duluth, returning Fri, Oct 24, priced at $413 found 3 days ago

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 $518
DLH
Duluth Intl.
CheapestClosest
Average driving time to city center11 min
Flights from $518
Flights from Rapid City (RAP) to Duluth (DLH)
Origin airport
Rapid City Regional
Destination airport
Duluth Intl.
Airlines serving
Delta, United
Roundtrip price
$313
Distance
561 mi

Rapid City to Duluth Flights

The cheapest times to fly from Rapid City 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 Rapid City to Duluth are during the month of October. You can find some of the cheapest flights from Rapid City to Duluth with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Rapid City to Duluth

Sunday is one of the best days to book for cheap flights from Rapid City 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 Rapid City 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 Rapid City to Duluth in 2025. You can also book with separate airlines for your outbound and return journeys, from $233 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 Rapid City 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 Rapid City 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 Rapid City Regional Airport (RAP) to Duluth Intl. Airport (DLH) cost?
Get a cheap one-way flight from $233 or cheap return flight from $314 from Rapid City Regional Airport (RAP) 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 Rapid City Regional Airport (RAP) to Duluth Intl. Airport (DLH)?
October is the most affordable month to fly from RAP to DLH. Traveling during quieter months is often the key to landing a great deal.
What is the cheapest airline that flies from Rapid City Regional Airport (RAP) to Duluth Intl. Airport (DLH)?
Expedia's filter tool lets you easily compare travel time, airlines and fares all in one place. Customize the search to your preferences, then sort by "Price (lowest to highest)" to find out which carrier offers the cheapest RAP to DLH flight.
How many flights per day from Rapid City Regional Airport (RAP) to Duluth Intl. Airport (DLH)?
You'll need to take a flight with a layover if you're traveling from Rapid City Regional Airport (RAP) to Duluth Intl. Airport (DLH). Direct flights don't operate daily on this route. However, simply filter your search to include one or two stops to find the best option for your trip.
What day of the week has the most flights from RAP to DLH?
You'll usually find Tuesday the quietest day for flights, while Fridays tend to be the busiest.* However this can vary from season to season and during peak travel times or public holidays.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from Rapid City Regional Airport (RAP) to Duluth Intl. Airport (DLH)?
To arrive at Duluth Intl. Airport (DLH) on schedule, book a flight that takes off from Rapid City Regional Airport (RAP) before 3 PM. The chance of cancellations is 22% higher, on average, for departures after this hour.**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 Rapid City Regional Airport (RAP) to Duluth Intl. Airport (DLH) last-minute?
Waiting until just before your trip to book your flight from RAP to DLH often results in higher prices. While you may come across some last-minute offers, they aren't always guaranteed. Be flexible with your itinerary for a better chance of landing a bargain.
Is it cheaper to book a RAP to DLH flight and hotel package?
You'll typically save money by booking a RAP 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 everything in one convenient place. After choosing your ideal accommodations and flights, consider adding extras like activities, tours and car rentals.
Can I cancel or change the date of my flight from Rapid City Regional Airport (RAP) to Duluth Intl. Airport (DLH)?
If you booked your RAP to DLH flight in the last 24 hours, you may be able to cancel or modify it at no cost. Depending on the airline and the type of fare you have, additional charges may apply for changes after that time. Airline policies and contact information can be found in your itinerary or confirmation email. Or, visit our Customer Service portal for more information.

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*Available to One Key members.