Cheap flights from Seattle to Boston from C$ 121

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 32m for a nonstop flight. You can also purchase a plane ticket from 4 airlines when you book a flight from Seattle/Tacoma Intl to Boston.

Yes, there are multiple flights from Seattle to Boston for under C$ 400. The cheapest flight booked recently is on Alaska Airlines for just C$ 310, but on average you can expect to pay C$ 375.

Cheapflights has 20 direct flights from Seattle to Boston under C$ 400. A good price for a direct flight from Seattle to Boston is less than C$ 404.

There are currently 20+ open flights from Seattle to Boston within the next 7 days for less than C$ 500.

You can find direct flights on the following days: Sunday, Monday, Tuesday, Wednesday, Thursday, Saturday.

The Seattle/Tacoma Intl to Boston Logan Intl flight path was viewed by 50 users in the past month. Keep an eye out for changes in search interest prior to high and low season.

10 flight departures from Seattle to Boston per day on average.
Early Morning (Midnight to 6am) - 30% of flight departures
Morning (6am - Midday) - 60% of flight departures
Evening (6pm - Midnight) - 10% of flight departures

There are many flights that can get you from Seattle to Boston in 5h 15m. Fly via Alaska Airlines, JetBlue, or Delta to get the fastest option. The distance from Seattle to Boston is about 4027 km. This flight may include one or multiple stops.

Alaska Airlines, at C$ 310, was found to be the cheapest airline from Seattle to Boston.Alternate airlines to your destination round-trip include JetBlue and Delta. You may be able to fly from Seattle to Boston for 39% less than the average price by searching for these airlines.

The cheapest airline one-way is Spirit Airlines, with whom users have recently found tickets for as low as C$ 121. However, be on the lookout for offers from Delta and JetBlue, as they are both options that can get you from Seattle to Boston for a low price.

Looking for the most reliable airlines to get you to your destination on time? Our data shows these are most likely to get you from Seattle to Boston on time: EL AL (92%), KLM (91%), China Eastern (83%).

While on average a flight from Seattle to Boston is generally C$ 468, our data shows the cheapest flight currently is C$ 219. When looking at the most popular route, (Seattle/Tacoma Intl - Boston Logan Intl), you can expect to pay C$ 1,056 for that flight.

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.

The amount of baggage you can bring on your Seattle to Boston flight depends on the airline and the type of fare you've chosen. After entering your flight details, you'll be able to view the specific baggage policies for each deal in the search results. Keep in mind that certain deals may offer additional baggage allowance.

Yes, Cheapflights allows you to browse and filter Seattle to Boston flight deals by airline. After entering your origin and destination, use the available filters to view flights offered by airlines.

Yes. In addition to deals on Seattle to Boston flights, Cheapflights offers vacation packages that include both flights and hotel.

After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Seattle to Boston.

Yes. Cheapflights offers flight deals from Seattle to Boston by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

Many airlines flying from Seattle to Boston offer the option to travel with pets. After selecting a flight deal, you can find more information about the airline's pet policy on their official website or by contacting the airline directly. Please note that additional fees and restrictions may apply.

Yes, you can often find last-minute deals on Seattle to Boston flights on Cheapflights. However, these deals can vary and may not always be available. We recommend checking back frequently or signing up for price alerts for the most up-to-date deals.

The Seattle to Boston flight deals you see on this page were last updated on 1/6.

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

Currently, January is the cheapest month in which you can book a flight from Seattle to Boston (average of C$ 277). Flying from Seattle to Boston in August is currently the most expensive (average of C$ 365). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.