Popular in | June |
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Cheapest in | January |
Average price | ₹ 32,259 |
Round-trip from | ₹ 8,271,339 |
BOS - SEA Price | ₹ 99,484 - ₹ 169,708 |
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SEA Temperature | 5 - 19 °C |
SEA Rainfall | 18 - 168 mm |
When searching for a good deal, it’s best to be prepared for potential fluctuations in price. We recommend booking at least 31 days in advance, which can save you up to 37% on flights from Boston to Seattle compared to booking the week you need them. Waiting 31 days out may not be for everyone, so we have options available for flights within the next two weeks, with the lowest price starting at ₹ 35,917. For sooner than that we have options available in the next 3 days from ₹ 45,479.
Our data shows that January tends to be the cheapest month to fly to Seattle from Boston. Users have commonly found prices around ₹ 33,361 for the month, but tickets can be as low as ₹ 15,963. Due to multiple factors, prepare for potentially higher prices in June.
Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Boston to Seattle as you normally would.
You can find direct flights on the following days: Sunday, Monday, Tuesday, Wednesday, Friday, Saturday.
On average 18 flights depart from Boston to Seattle per day.
Morning (6am - Noon) - 28% of flight departures
Afternoon (Noon - 6pm) - 11% of flight departures
Evening (6pm - Midnight) - 61% of flight departures
Consider LATAM Airlines (96%), China Eastern (92%) or Virgin Atlantic (83%) when booking your flight. These represent the most reliable airlines when flying from Boston to Seattle.
Great question - BOS to SEA just means Boston Logan Intl Airport to Seattle/Tacoma Intl Airport. Now you’ll know what these unique codes when you look for flights!
10%of flight departures | Early morningMidnight to 6 am |
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47%of flight departures | Morning6 am to noon |
41%of flight departures | AfternoonNoon to 6 pm |
2%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 |
Cheapflights helps you search for flights from Boston to Seattle via 900+ travel sites so you don’t have to. After performing a flight search, users can also filter their flight selection by filtering for price, number of stops, airlines, and so on.
Millions of users choose and trust Cheapflights to book the best flight deals from Boston to Seattle for free. We help you search and compare prices from hundreds of airlines for the right flight just for you.
Need flexible booking options for your flight to Seattle from Boston? Don’t worry, Cheapflights have you covered. Use our search filter to only show flights with no change fees.
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