Vuelos de Alaska Airlines de Seattle (SEA) a Boston (BOS) desde $149

It’s always prudent to learn about any quarantine requirements and travel advice reports in effect in your destination. Ensure you check out our Covid-19 Travel Advisor for up-to-date info on booking a flight to Logan Intl. Airport (BOS) from Seattle - Tacoma Intl. Airport (SEA).

If you’re flying from Seattle - Tacoma Intl. Airport (SEA) to BOS, the chances are you’ll be getting off the plane at terminal B. We can’t say for sure which terminal you’ll be taking off from — it’s a good idea to check with your airline.

With Alaska Airlines offering nonstop flights from Sea-Tac Airport to Logan Intl. Airport (BOS), your next great adventure is just a flight away. Wave goodbye to the stress, inconvenience and delays that are often associated with stopovers, and book your seat today.

Watch a movie or two, listen to music through your headphones or just recline your seat and relax. Whatever you’re into, find a way to entertain yourself during the 5 hours and 58 minutes that it takes to journey from Sea-Tac Airport to Logan Intl. Airport (BOS) with Alaska Airlines.

Booked a flight from SEA to BOS with Alaska Airlines? On this route, you’ll usually be hopping on board either the Boeing 737 MAX 9 or the Boeing 737-800 type aircraft.

You can take your pick of about 4 flights each day with Alaska Airlines from Seattle - Tacoma Intl. Airport (SEA) to BOS.

For more info about changing your flight to Logan Intl. Airport (BOS), please visit our Customer Service Portal.

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.