The cheapest month to fly from Boston to Seattle is usually January, with fares from 372 €.
Price by day
Cheapest days to fly this month
We can't show price data here because there are no direct flights from Boston to Seattle right now. Run the search anyway: you'll compare live fares with layovers and might still catch a great deal.
Prices by month
Lowest fare found for each month
391 €Dec
372 €Jan
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