Currently, the most affordable month to book a Aer Lingus flight from Manchester to Seattle in February, with an average price of £594. Conversely, traveling with Aer Lingus from Manchester to Seattle in July will be the most expensive, with an average cost of £800. Various factors influence flight prices, so comparing airlines, departure airports, and times can help reduce costs.
January
£489
February
£475
March
£506
April
£521
May
£546
June
£613
July
£640
August
£611
September
£549
October
£525
November
£479
December
£475
SEA Temperature | 5 - 19 °C |
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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 19.0 C. Travellers hoping to avoid the cold should look outside of December, when temperatures are typically at their lowest (around 5.0 C).
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