Cheap flights from Seattle to Boston (SEA - BOS) from $119

Friday flights are found to be more expensive to fly from Seattle to Boston. This shouldn’t discourage you from searching, as you can still find great deals by being flexible with your options. Use our search form to find deals on tickets to Boston.

When searching for a good deal, it’s best to be prepared for potential fluctuations in price. We recommend booking at least 22 days in advance, which can save you up to 22% on flights from Seattle to Boston compared to booking the week you need them. Waiting 22 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 $451. For sooner than that we have options available in the next 3 days from $557.

January is one of the best times of the year to fly to Boston from Seattle. Prices for January average $420 per person but you can even find prices for as low as $187. The most expensive prices can be found in the month of June. Opting for a January flight can save you 56% on your journey compared to booking in June

Unlike at noon, when flights are generally more expensive, you can save up to 20% on flights from Seattle to Boston by exploring options for tickets in the evening.

Booking a flight from Seattle/Tacoma Intl (SEA) to Boston Logan Intl (BOS) is your only option if you wish to fly from Seattle to Boston. On a typical day, there are 22 flights from Seattle/Tacoma Intl to Logan Intl, all of which are around 5h 09m for a nonstop flight. You can also purchase a plane ticket from 8 airlines when you book a flight from Seattle/Tacoma Intl to Boston.

Delta, Alaska Airlines, and JetBlue are some of the carriers that may have flexible cancellation policies. You can use our site to filter for other airlines that may also have this kind of flexibility.

Yes, there are multiple flights from Seattle to Boston for under $300. The cheapest flight booked recently is on JetBlue for just $238, but on average you can expect to pay $258.

Cheapflights has at least 20 direct flights from Seattle to Boston under $300. A good price for a nonstop flight from Seattle to Boston is less than $277.

There are currently 20+ open flights from Seattle to Boston within the next 7 days for less than $400.

Days when nonstop flights are available for this flight are: Sunday, Monday, Tuesday, Thursday, Friday, Saturday.

Within the past month, 13 users have taken a look at flights from Seattle/Tacoma Intl to Boston Logan Intl.

22 flight departures from Seattle to Boston per day on average.
Early Morning (Midnight to 6am) - 27% of flight departures
Morning (6am - Noon) - 32% of flight departures
Afternoon (Noon - 6pm) - 32% of flight departures
Evening (6pm - Midnight) - 9% of flight departures

Airlines like JetBlue, Spirit Airlines, and American Airlines fly from Seattle to Boston in about 5h 19m. The time it takes to get you to your destination can typically vary by up to 3h 47m. There are 2502 mi between Seattle and Boston. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

Our cheapest airline available from Seattle to Boston is JetBlue. Our recent data shows that you can find tickets from as low as $238 on this airline. Additional options worth looking into are Spirit Airlines and American Airlines, starting at $241 and $254 round-trip. JetBlue is currently priced 43% below the average price you’ll pay for this route.

For one-way options, check prices for JetBlue. According to our data, you can fly for as low as $119. Users have also found prices from $121 and $127 on Spirit Airlines and American Airlines, respectively.

The most popular airlines flying from Seattle to Boston are Undisclosed Carrier, American Airlines and Alaska Airlines. Something to consider prior to booking your flight.

Before booking your flight to Boston from Seattle, check out the most reliable airlines to get you to your destination on time: LATAM Airlines (88%), Korean Air (81%), Delta( 78%).

Looking at all options, your cheapest flight can be booked for $159. While the most popular route (Seattle/Tacoma Intl - Boston Logan Intl) can be booked for $229 on average our data indicates $721 when flying from Seattle to Boston.

This is defined as Seattle/Tacoma Intl Airport (SEA) and Boston Logan Intl Airport (BOS). Codes like Boston Logan Intl Airport are often used to just call airports uniquely.