Cheap flights from Detroit to Boston from $114

The cheapest month to fly to Portland, Maine from Detroit is in October. Flight prices, which tend to average around $412, are often lower during this time because this is during the off-season. If you aren’t able to travel to Portland, Maine during the month of October, then flying in May is also cheap. Prices for this month can be found on momondo for an average of $469.

On average, the least expensive day to fly to Portland, Maine from Detroit is on a Saturday. momondo users have found tickets for Saturday departures for as low as $469. However, this price may fluctuate depending on the airline, the season, and holidays. On the other hand, Monday is the most expensive day to depart from Detroit because it is more convenient for both business and leisure travelers. As a result, prices tend to be around $597.

In the afternoon is the cheapest time of day to fly from Detroit to Portland, Maine when you can find flight prices for as low as $419. Flying to Portland, Maine in the afternoon is an ideal time because this is during off-peak travel hours. Try not to purchase tickets in the evening because they tend to be around $559. Of course, these prices can vary depending on the time of year and what airport you fly to.

Fly from Detroit Metropolitan Wayne County to Portland for the best Detroit - Portland flight prices

You are more likely to see cheaper flights to Portland, Maine from Detroit when booking weeks ahead of your departure date. In general, you can expect to find flights to Portland, Maine for around $524 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Portland, Maine from Detroit for as low as $399 on momondo.

There is only 1 cabin class available to choose from on Detroit to Portland flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

3 flights are operational daily from Detroit to Portland, Maine as of February 2026. The most popular departure time for this route is 10:00AM, with 100% of flights per day taking off at noon.

As of February 2026, there are 21 flights per week flying from Detroit to Portland, Maine. The most common day of the week flights depart is Mon, with 14% of flights taking off on this day.