Cheap flights from Miami to Seattle from £145

The cheapest month to fly to Seattle from Miami is in January. Flight prices, which tend to average around £253, are often lower during this time because this is during the off-season. The month of March is another great option to travel to Seattle, with average flight prices from Miami averaging around £259.

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 £298 when searching weeks before you fly. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Seattle from Miami for as low as £280 on momondo.

There is only 1 cabin class available to choose from on Miami to Seattle flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

You could potentially save up to 63% on your flight if you consider stops on a Miami to Seattle flight.

As of September 2026, prices for Miami to Seattle flights are approximately 41% more expensive when compared to flights at the same time last year.

Historically, on average around 23% 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 169 minutes.

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

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

According to our data, Alaska Airlines have had the fewest delays on this route over the last 12 months, with about 18% of their flights experiencing any sort of delay.

2 flights are operational daily from Miami to Seattle as of September 2026. The most popular departure time for this route is 18:00, with 100% of flights per day taking off in the evening.

As of September 2026, there are 15 flights per week flying from Miami to Seattle. The most common day of the week flights depart is Wed, with 20% of flights taking off on this day.