Vuelos Desde A. Internacional Logan (BOS) a Seattle - Tacoma Intl. (SEA) Empezando Desde $121

Be sure to visit the Covid-19 Travel Advisor to discover if there are any current quarantine requirements or travel advice reports in place in Sea-Tac Airport when jet-setting from Logan Intl. Airport.

Multiple airlines offer flights straight from Logan Intl. Airport to SEA. Among these are Delta and Alaska Airlines — check them out if you want to arrive at your destination as quickly as possible.

For more info about changing your flight to Sea-Tac Airport, please visit our Customer Service Portal.

The journey between BOS and SEA is usually about 6 hours and 20 minutes. Make your journey more enjoyable by downloading a few shows on your phone or laptop and enjoying them with your seat fully reclined.

The distance from Logan Intl. Airport (BOS) to SEA is 2,500 mi. Apart from filling your phone with more shows, it’ll be wise to bring along some noise-canceling earphones and a pullover as well.

There are several airlines with direct flights from BOS to Sea-Tac Airport. Delta (DL) is one of the most well-known, operating approximately 86 flights each month. Another attractive option is Alaska Airlines (AS), which has 82 flights each month. The more airlines you take into account, the more likely you are to snap up a fantastic deal.

From the moment you enter the departure terminal to when you leave the arrivals terminal, if you’re flying with Alaska Airlines, Delta or Southwest Airlines you can be sure that COVID-19 measures and social distancing rules have been adhered to. Many airlines have introduced capped capacity flights and keeping the middle seat empty.

This just in! Airfares offered on Thursdays tend to be the cheapest, according to flight demand on Travelocity in 2021. Tuesday and Wednesday prices are also good, but you may want to prepare your budget if booking during the weekend, as data shows that is when prices are generally at their highest.

Frequent travelers may already know this, but earlier in the week can be the cheapest time to fly. In 2021, flights departing on a Monday were generally the cheapest of the week, whereas you may pay a premium for weekend flights when demand is usually high. On average, tickets were most expensive for Saturday departures, so if you need to fly out on a weekend, you might look for deals ahead of time.

Trying to figure out how early you should book your flight? It’s possible to start comparing international airfares on Travelocity up to 12 months in advance. However, it does depend on the carrier as not all airlines release their prices that far out. According to our 2021 flight demand trends, last minute planners can still bag a bargain with some of the cheapest fares appearing 0-2 weeks prior to their travel dates.*According to flight demand on Travelocity.com from January to December 2021. Savings are subject to change based on departure location, date and destination.