August is the cheapest month to fly this route, with average fares around $217 round trip.
Average round-trip fares by departure month, based on current availability.
| Month | Avg Price | Lowest | Relative Cost | |
|---|---|---|---|---|
| May 2026 | $265 | $220 | Peak | |
| June 2026 | $228 | $207 | ||
| July 2026 | $224 | $197 | ||
| August 2026 | $217 | $199 | Best |
Departing on Tuesday offers the lowest average fares at $207. Thursday departures are the most expensive at $248, a difference of $41.
The best time to fly is August. Set up an alert and we'll notify you when prices drop.
Get Started Free →The cheapest month to fly from Detroit to Las Vegas is August, with average round-trip fares around $217. The lowest fare found in August is $199.
Tuesday departures are the cheapest, averaging $207 round trip. The most expensive day is Thursday at $248.
Based on current pricing trends, booking for August travel offers the best value. Avoid May if possible, as fares average $265 compared to $217 in the cheapest month. June is a solid middle-ground option at $228.
Flying in August instead of May can save you approximately $48 per round trip. The cheapest month averages $217 while the most expensive averages $265.
Airlines, flight times, price calendar, and more for Detroit to Las Vegas
View DTW → LAS Details