August is the cheapest month to fly this route, with average fares around $242 round trip.
Average round-trip fares by departure month, based on current availability.
| Month | Avg Price | Lowest | Relative Cost | |
|---|---|---|---|---|
| May 2026 | $326 | $230 | Peak | |
| June 2026 | $266 | $210 | ||
| July 2026 | $272 | $230 | ||
| August 2026 | $242 | $224 | Best |
Departing on Wednesday offers the lowest average fares at $254. Sunday departures are the most expensive at $295, 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 Minneapolis to Seattle is August, with average round-trip fares around $242. The lowest fare found in August is $224.
Wednesday departures are the cheapest, averaging $254 round trip. The most expensive day is Sunday at $295.
Based on current pricing trends, booking for August travel offers the best value. Avoid May if possible, as fares average $326 compared to $242 in the cheapest month. July is a solid middle-ground option at $272.
Flying in August instead of May can save you approximately $84 per round trip. The cheapest month averages $242 while the most expensive averages $326.
Airlines, flight times, price calendar, and more for Minneapolis to Seattle
View MSP → SEA Details