$139 Cheap Delta flights from Seattle to Boston (SEA to BOS)

Find The Best Day To Fly from Seattle to Boston

Amazing Delta SEA to BOS Flight Deals

The cheapest flights to Logan Intl. found within the past 7 days were $247 round trip and $139 one way. Prices and availability subject to change. Additional terms may apply.

BOS From SEA Economy Coach Packages on Similar Airlines

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Prices and availability subject to change. Additional terms may apply.

Frequently asked questions

Can I catch a flight from Seattle - Tacoma Intl. Airport (SEA) to BOS right now?
Ensure you check out the Covid-19 Travel Advisor to discover if there are any present travel advice reports and quarantine requirements in effect in BOS when jet-setting from SEA.
What terminal is Delta Air Lines at Sea-Tac Airport?
If you’re heading from Sea-Tac Airport to Logan Intl. Airport, you’ll most likely be exiting the plane at terminal A. We can’t say for sure which terminal you’ll be departing from — it’s wise to contact your airline.
Are there Delta Air Lines non-stop flights from SEA to BOS?
It is possible to fly straight from SEA to BOS with Delta Air Lines and avoid time-consuming stopovers. The less time you spend traveling, the more time you’ll have for vacation adventures.
How long is a Delta Air Lines flight from SEA to BOS?
Enjoy an in-flight snooze and touch down at your destination feeling refreshed. You’ll have sufficient time to do so when traveling with Delta Air Lines between SEA and BOS, with the flight taking an average of 6 hours and 22 minutes.
What type of aircraft does Delta Air Lines fly from SEA to BOS?
Buckle up, sit back and get comfortable on the Airbus A321neo. This airplane is commonly used on the SEA to BOS route by Delta Air Lines.
How many direct and indirect flights does Delta Air Lines fly from SEA to BOS?
If you’re venturing from SEA to BOS, you’ll find there are about 4 Delta Air Lines daily flights to select from.
If I am not able to travel due to COVID-19, can I change my booking to a later date?
For more info about changing your flight to BOS, please visit our Customer Service Portal.
What is the best day to buy a plane ticket?
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.
What are the cheapest days to fly?
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.
How far in advance can you book a flight?
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.
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Discover our best Delta flight from Seattle SEA to Boston BOS 

To find the best deals on flights to Seattle from Boston with Delta, just enter your travel dates, filter by Delta, and hit search. You’ll find 2 flights to choose from and can sort by price, flight duration, and arrival or departure time.  

 

Return flights from Seattle SEA to Boston BOS with Delta 

If you’re planning a round trip, booking return flights with Delta is usually the most cost-effective option. With airfares ranging from $247 to $247, it’s easy to find a flight that suits your budget. Prices and availability subject to change. Additional terms may apply. 

 

Book one-way Delta flights from Seattle SEA to Boston BOS 

A one-way ticket gives you much greater flexibility—allowing you to choose your return date, destination, and time whenever you’re ready. By booking in advance you can find great deals on one-way tickets too. Right now, a one-way Delta flight from Seattle to Boston costs from $139. Prices and availability subject to change. Additional terms may apply. 

 

The easy way to find cheap flights to Boston BOS from  Seattle SEA with Delta 

To find a cheap Delta flight from Seattle SEA to Boston BOS, sort your search results by price or filter by budget. Thanks to Travelocity’s Price Match Promise, if you find a better airfare deal anywhere else within 24 hours, we’ll credit or refund the difference. 

 

How to find our best airfare deals on Delta flights from Seattle SEA to Boston BOS 

If you’re looking for cheap flights, it helps to be flexible when it comes to your travel dates. You’ll usually find lower cost tickets when you travel during quieter months such as March, or if you book a flight with a stopover. 

 

Find nonstop flights from Seattle SEA to Boston BOS with Delta 

If you’re keen to be on Boston soil fast, don’t waste time with a stopover—filter your search results to show direct Delta flights only. The journey takes around 11 hour(s) 20 min(s) – so you’ll be there before you know it. 

 

Flexible airline tickets for Delta flights from Seattle SEA to Boston BOS 

Make sure you’re not out of pocket if plans change by choosing a flexible ticket with penalty-free amendment and cancellation options. Use our ‘no change fee’ filter to see which flights have this option.  

 

There are a lot of reasons to book your flights to Boston BOS from  Seattle SEA with Delta on Travelocity 

At Travelocity our vast and up-to-the-minute inventory puts all of our best flight deals in one place. So, whether you’re traveling on business or jetting off with friends and family, you can trust Travelocity to get you there.

Delta Airports
Hop on a(n) Delta flight today by flying to many destinations out of these domestic and international airports:
Airport code
Country
Airport name
Number of flights
ATLUSAHartsfield-Jackson Atlanta Intl.252
DTWUSADetroit Metropolitan Wayne County156
MSPUSAMinneapolis - St. Paul Intl.131
SLCUSASalt Lake City Intl.116
SEAUSASeattle - Tacoma Intl.57
LAXUSALos Angeles Intl.41
AMSNLDSchiphol31
YYCCANCalgary Intl.26
YYZCANPearson Intl.24
JFKUSAJohn F. Kennedy Intl.23

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