What is the cheapest month to fly from Miami to Seattle?

Based on current 6-month forward fare data, August 2026 is the cheapest month to fly from Miami (MIA) to Seattle (SEA), with fares starting from $144.

What is the lowest current fare from MIA to SEA?

The lowest currently-listed fare from Miami (MIA) to Seattle (SEA) is $144 on 2026-08-29.

How long is the flight from Miami to Seattle?

Direct flights from MIA to SEA cover approximately 4,379 km (2,721 miles), with an estimated flight time of 5h 9m. Operating airlines: AA, AS, DL.

Cheap flights from Miami to Seattle

Cheapest current fares: $144 in August 2026, 4,379 km direct flight in ~5h 9m.

Last updated August 9, 2026 · By Flightmaps Editorial

Cheapest month-by-month fares

Lowest available fare per calendar month from Miami (MIA) to Seattle (SEA). Refreshed daily.

Miami (MIA) → Seattle (SEA)

August 2026 $144
September 2026 $154

Frequently asked questions

What is the cheapest month to fly from Miami to Seattle?

Based on current 6-month forward fare data, August 2026 is the cheapest month to fly from Miami (MIA) to Seattle (SEA), with fares starting from $144.
What is the lowest current fare from MIA to SEA?

The lowest currently-listed fare from Miami (MIA) to Seattle (SEA) is $144 on 2026-08-29.
How long is the flight from Miami to Seattle?

Direct flights from MIA to SEA cover approximately 4,379 km (2,721 miles), with an estimated flight time of 5h 9m. Operating airlines: AA, AS, DL.

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