Vuelos de Delta de Boise (BOI) a Seattle (SEA) desde $421

Make sure you go to our Covid-19 Travel Advisor to see if there are any current quarantine requirements and travel advice reports in effect in Sea-Tac Airport when flying in from Boise Airport (BOI).

If you’re flying from BOI to SEA with Delta Air Lines, there’s a good chance you’ll be taking off from the main terminal. Your airline should be able to let you know which terminal you’ll be landing at.

If you’re traveling from Boise Airport (BOI) to SEA and prefer to fly direct, Delta Air Lines can help you out. Choose your favorite seat now and you’ll be seeing the sights at the other end in a flash.

No annoying jet lag, no cramped legs — there’s a lot to love about short-haul flights. If you’re jetting off with Delta Air Lines from Boise Airport (BOI) to Sea-Tac Airport, the journey will zoom by in around 2 hours and 46 minutes.

If you’re traveling from BOI to SEA with Delta Air Lines, you’ll likely be jetting aboard the Embraer 175.

Take your pick of about 5 Delta Air Lines flights each day from BOI to SEA.

For more info about changing your flight to Sea-Tac Airport, 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.