Round-trip from | £447 |
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Popular in | July |
Cheapest in | January |
Average price | £394 |
Leaving on a Sunday is a viable option for saving on travel. Heavily demanded days of the week can typically drive up the prices you see. Booking your travel for a less competitive day can save up to 48% on the overall cost on flights from Boston to Seattle.
Find a great deal and save up to 57% by booking at least 41 days prior to your desired departure date, rather than waiting until the week of travel. According to our data, there are a number of flights available from Boston to Seattle within the next two weeks, with the cheapest ticket starting at £265.
Our data shows that January tends to be the cheapest month to fly to Seattle from Boston. Users have commonly found prices around £281 for the month, but tickets can be as low as £77. Due to multiple factors, prepare for potentially higher prices in July.
It’s typically best to fly out from Boston to Seattle at midday. Doing so could potentially save you 31% on the flight price compared to flying in the morning, which is usually more expensive.
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).
1%of flight departures | Early morningMidnight to 6 am |
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57%of flight departures | Morning6 am to noon |
16%of flight departures | AfternoonNoon to 6 pm |
26%of flight departures | Evening6 pm to midnight |
Monday | 23daily flights |
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Tuesday | 25daily flights |
Wednesday | 21daily flights |
Thursday | 22daily flights |
Friday | 25daily flights |
Saturday | 20daily flights |
Sunday | 22daily flights |
When you search for this flight from Boston to Seattle, Cheapflights searches on 900+ travel sites to save you time finding great flight deals online. Additionally, we offer filter features so you can choose a preferred cabin class or airline, see different price ranges, and much more so you can book the flight for you.
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