Cheap flights from Montana to Seattle from $109

In general, January is the cheapest month to fly from Montana to Seattle. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $209. If you don’t want to visit Seattle in January, then you should wait until February to fly from Montana, when ticket prices are also cheap, with an average price of $232.

On average, the least expensive day to fly to Seattle from Montana is on a Friday. momondo users have found tickets for Friday departures for as low as $383. However, this price may fluctuate depending on the airline, the season, and holidays. On the other hand, Sunday is the most expensive day to depart from Montana because it is more convenient for both business and leisure travelers. As a result, prices tend to be around $598.

Flying to Seattle from Montana at noon is the least expensive time of day to depart. momondo users have found prices as low as $350 when looking at flights departing at noon. Flights to Seattle are more costly in the afternoon, with an average ticket price of $528. Departure times in the afternoon fall within the peak daily travel times, which is why tickets can be more expensive.

Fly from Great Falls to Seattle/Tacoma Intl for the best Montana - Seattle/Tacoma Intl flight prices

You are more likely to see cheaper flights to Seattle from Montana when booking weeks ahead of your departure date. In general, you can expect to find flights to Seattle for around $259 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Seattle from Montana for as low as $147 on momondo.

There are 4 cabin classes available to choose from on Montana to Seattle flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

As of October 2026, 8 flights take off from Montana and land in Seattle each day. The most common flight departure time for this route is 2:00PM, with 47% of daily flights taking off in the afternoon.

The number of flights available between Montana and Seattle is 60 per week as of October 2026. The most frequent departure day is Fri, with 77% of weekly flights leaving on this day.