The cheapest month to fly to Detroit from Ireland is in September. Flight prices, which tend to average around 385€, are often lower during this time because this is during the off-season. If you aren’t able to travel during the month of September, then book flights to Detroit from Ireland during April instead. Flights to Detroit in April, while not as cheap as those in September, still average around 459€.
We recommend purchasing flights from Ireland to Detroit 57 days ahead of your departure date because this is when momondo users tend to see the best flight rates. On average, our users have found flights to Detroit for 551€. However, in the past 72 hours, people saw flights from Ireland for as low as 421€.
According to our data, Tuesday is the cheapest day to fly to Detroit from Ireland. The lowest ticket price found for a Tuesday departure recently was 460€. Keep in mind that prices can always vary depending on your route and whether or not you are flying domestic or international. The most expensive day to fly to Detroit is Monday, with ticket prices averaging around 568€.
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