Currently, December is the cheapest month in which you can book a flight to Seattle (average of $244). Flying to Seattle in July will prove the most costly (average of $408). There are multiple factors that influence the price of a flight so comparing airlines, departure airports and times can help keep costs down.
January
$247
February
$254
March
$288
April
$295
May
$317
June
$407
July
$408
August
$343
September
$278
October
$257
November
$258
December
$244
SEA Temperature | 41 - 66.2 °F |
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If weather is an important factor for your trip to Seattle, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 66.2 F. Travelers looking to avoid the cold should look outside of December, when temperatures are typically at their lowest (around 41.0 F).