Cheap flights from Miami to Seattle from $109

In general, October is the cheapest month to fly from Miami to Seattle. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $267. If you don’t want to visit Seattle in October, then you should wait until September to fly from Miami, when ticket prices are also cheap, with an average price of $311.

On average, the least expensive day to fly to Seattle from Miami is on a Wednesday. momondo users have found tickets for Wednesday departures for as low as $366. 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 Miami because it is more convenient for both business and leisure travelers. As a result, prices tend to be around $500.

Flying to Seattle from Miami in the afternoon is the least expensive time of day to depart. momondo users have found prices as low as $372 when looking at flights departing in the afternoon. Flights to Seattle are more costly in the morning, with an average ticket price of $496. Departure times in the morning fall within the peak daily travel times, which is why tickets can be more expensive.

Fly from Miami to Seattle/Tacoma Intl for the best Miami - Seattle/Tacoma Intl flight prices

You are more likely to see cheaper flights to Seattle from Miami when booking weeks ahead of your departure date. In general, you can expect to find flights to Seattle for around $352 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Seattle from Miami for as low as $283 on momondo.

No. A direct flight is the cheapest option for a flight between Miami to Seattle.

As of May 2026, prices for Miami to Seattle flights are approximately 21% cheaper when compared to flights at the same time last year.

Alaska Airlines, Delta, and Southwest are the most popular carriers operating from Miami to Seattle/Tacoma Intl

Delta, Alaska Airlines and American Airlines are the top three most popular airlines that fly to Seattle from Miami according to our data. Delta is the first choice among our users, with 48% of people opting to fly with this airline when traveling to Seattle. Keep in mind that there are 7 different airlines that fly to Seattle on a routine basis, so you have a few additional options to choose from.

Historically, on average around 25% of flights between Miami and Seattle have experienced a delay on any given week. The average delay length over the past 12 months has been 170 minutes.

Generally, flights departing in the evening tend to experience fewer delays. Flights in the early afternoon have, in the past, seen delays more frequently in comparison.

Tuesday is statistically the day of the week which experiences the fewest number of delays on this flight route. Sunday has historically seen more delays on average compared to the rest of the week.

According to our data, Alaska Airlines have had the least number of delays on this route over the last 12 months; with about 20% of their flights experiencing any sort of delay.

3 flights are operational daily from Miami to Seattle as of May 2026. The most popular departure time for this route is 8:00PM, with 58% of flights per day taking off in the evening.

The number of flights available between Miami and Seattle is 24 per week as of May 2026. The most frequent departure day is Sun, with 21% of weekly flights leaving on this day.