Vuelos de Delta de Boston (BOS) a Seattle (SEA) desde $243

Ensure you check out our Covid-19 Travel Advisor to find out if there are any current quarantine requirements or travel advice reports in effect in Seattle - Tacoma Intl. Airport (SEA) when flying in from Logan Intl. Airport (BOS).

Flights usually take off from terminal An at BOS if you’ve booked a ticket with Delta Air Lines. On your way to SEA? Contact your airline (or do some research online) to find out which terminal you’ll be exiting the plane at.

You bet there are. Save time and effort and fly straight from BOS to Sea-Tac Airport with Delta Air Lines. Avoid complicated transfers, reduce the risk of your bags going missing and reach your destination faster — direct flights are the preferred way to travel for many wise wanderers.

Bring that book you’ve been meaning to read. A flight from BOS to SEA with Delta Air Lines will take on average 7 hours and 31 minutes. You’ll have more than enough time to get swept up in the gripping plot.

Delta Air Lines typically operates the Airbus A321neo when flying the BOS to SEA route.

You’ll have loads of choice if you’d prefer to fly with Delta Air Lines from BOS to SEA. At the moment, it operates no fewer than 4 flights per day.

For more info about changing your flight to SEA, 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.