BOS - SEA Price
|
$237 - $410
|
SEA Temperature
|
41 - 66.2 °F
|
SEA Rainfall
|
0.7 - 6.6 inches
|
Popular in December High demand for flights, 29% potential price rise |
Cheapest in January Best time to find cheap flights, 19% potential price drop |
Round-trip from $237 From Boston Logan Intl to Seattle/Tacoma Intl |
One-way from $208 One-way flight from Boston Logan Intl to Seattle/Tacoma Intl |
One of the essential ways to save on airfare from Boston to Seattle is to remain as flexible as possible. Flights that are at noon tend to be the most expensive. A flight in the evening could potentially save you up to 40% on airfare.
Thursday is generally a great day to depart. Flying on this day could help you save up to 25%.
When searching for a good deal, it’s best to be prepared for potential fluctuations in price. We recommend booking at least 54 days in advance, which can save you up to 73% on flights from Boston to Seattle compared to booking the week you need them. Waiting 54 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 $376. For sooner than that we have options available in the next 3 days from $488.
Airline | Cheapest | Average | Flexibility | On-time | COVID-19 safety | |
---|---|---|---|---|---|---|
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$10 | $21 | No cancel fee | 66% |
We couldn't confirm the COVID-19 safety measures taken by Juneyao Airlines. Please check directly on their website for additional information. |
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$80 | $238 | No cancel fee | 65% | ||
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$108 | $274 | No cancel fee | 69% | ||
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$109 | $293 | No cancel fee | 75% | ||
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$138 | $268 | No cancel fee | 62% | ||
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$146 | $357 | No cancel fee | N/A | ||
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$148 | $402 | No cancel fee | 62% | ||
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$156 | $453 | No cancel fee | 71% | ||
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$191 | $428 | No cancel fee | 83% | ||
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$253 | $506 | No cancel fee | N/A |
We couldn't confirm the COVID-19 safety measures taken by Endeavor Airlines. Please check directly on their website for additional information. |
Afternoon Noon to 6 PM | 83% of BOS to SEA departures |
Morning 6 AM to noon | 15% of BOS to SEA departures |
Early morning Midnight to 6 AM | 1% of BOS to SEA departures |
Evening 6 PM to midnight | 1% of BOS to SEA departures |