The cheapest times to fly from DTW to ISN are
- April 16th to May 6th
- August 13th to October 7th (except the week of September 24th)
- October 22nd to November 11th
- December 17th to February 11th
based on data collected exclusively by Champion Traveler across tens of millions of flights. Among all the dates above, the very cheapest time to fly from DTW to ISN is late January. Prices can be as high as $872 for Monday flights during early to mid December, or as low as $330 for Tuesday flights around late January.
When to Fly to Williston
Flying from Detroit, MI (DTW) to Williston, ND (ISN) will usually cost between $335 to $593 per person if booking more than four weeks in advance. On average the very cheapest time to fly is late January with an average ticket price of $366. Due to high demand the most expensive time to fly is early to mid December, with an average price of $582. Planning your trip to low-cost times can easily save you $216 on economy flights and even more on first-class flights. Generally, any price below $420 can be considered a good price for a round-trip DTW to ISN flight.
See below for a graph of average weekly prices for the DTW to ISN route. All prices are for round-trip tickets in USD.
Compared to other flights, the DTW to ISN flight is much cheaper than the average and costs much less than the average flight leaving from Detroit. The average price per mile (for a direct flight) is $0.24, which is below average.
Flight Prices by Day of the Week
Tuesday is usually the cheapest day to depart and return on this flight. Mondays are the most expensive days to fly out or take a return trip. Selecting flights on the least expensive days could save you up to $114 (23%) on this flight.
Departing prices are for round-trip flights returning on the day of departure. For example, a flight departing on Tuesday and returning a week later will cost an average of $378. Return trip prices are from the ISN to DTW flight, and often highlight the quality of our data in showing the same trend.
Departing Prices by Day
Return Trip Prices by Day
Nonstop Flights and Layovers
Travelers looking to fly from DTW to ISN can generally find a 1-layover flight. Because there is not usually a direct flight option the real-world direct flight time of 2 hour 54 minutes may not be realistic.
Alternative Nearby Airports
Champion Traveler tells you which airports are nearby and whether tickets might be cheaper alternative airports nearby. Sometimes it’s worth it to fly into a closer airport and then commute to your destination. Remember that there is not usually a nonstop flight from DTW to ISN while comparing.
- 109 miles (175 km) away from ISN
- Usually 5.24% less expensive than ISN
- 1-layover flights available
Flight Questions Answered
Still have questions about flying from DTW to ISN? We’ve got answers.
Which airlines fly this route?
You can find 2 major airlines flying this route most often: Delta, United, and potentially more during busy seasons.
How far away is it from Sloulin Field International Airport to Detroit Metro Wayne County Airport?
The distance between the two airports is roughly 1066 miles or 1716 kilometers.
How long does it take to fly from DTW to ISN?
The real-world flight time for a nonstop DTW to ISN flight is about 2 hour 54 minutes.
How many flights go between Detroit, MI and Williston, ND?
It depends on the day of the week and the date, but a typical day might have around 59 available flights from DTW to ISN.
Airport Location Info
|Origination airport name||Detroit Metro Wayne County Airport|
|Country||the United States|
|Destination airport name||Sloulin Field International Airport|
|Country||the United States|
Please note that while we’ve worked hard to analyzed tens of millions of flights to get you this data, we do not calculate current live prices or guarantee pricing. Please see our partners using the links above for current offers.