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Find the best fares and schedules for Seattle to Boston flights in seconds — we search over 700 airlines, 50+ agencies and 5+ top booking systems to uncover the cheapest options, ideal times and flexible conditions. Compare nonstop and connecting routes, lock in the fare that suits your plans, and book with confidence knowing you’ve seen the widest market selection available.
Fly nonstop from Seattle to Boston for the fastest, most convenient way to cross the country — you’ll save travel time and skip the hassle of connections. Direct flights let you relax or work uninterrupted, though connecting options can sometimes be cheaper if you’re flexible with schedule or budget.
A direct flight is the easiest way to get to your destination. The following airlines operate non-stop flights from Seattle to Boston:
We keep tight track on airlines' pre-holidays sales and other special offers occurences all the time to let you save maximum amount of funds while traveling to your family or just going out on vacation.
The cheapest one-way flight from Seattle to Boston departs on 10/28/2025, is operated by Alaska Airlines and costs $120
There is no information about the cheapest roundtrip flight from Seattle to Boston
Fastest flight from Seattle to Boston takes 5h 19m
There are direct flights on this route 2 days a week: Tu and Th
The distance between Seattle and Boston is 3999km (2479 miles). There are 89 direct flights from Seattle to Boston. The time difference between Seattle and Boston is 3h. Flights from Seattle begin at 7:50 AM. The latest flight from Seattle departs at 11:15 PM
Flights from Seattle to Boston are operated by several airlines — Alaska Airlines and Hawaiian Airlines. This allows passengers to flexibly choose flights based on departure time, cost, and additional services. The minimum ticket price starts at $113, making this destination accessible to travelers with different budgets. We help compare all available options in real time, so you can book tickets at the best value for money. The service ensures transparent search and lets you book affordable flights in just a few clicks.
Starting at $113
Starting at $160
Seattle — Boston
10/31/2025
Departure
Direct flight
AS460
Starting at $121
Seattle — Boston
11/03/2025
Departure
Direct flight
AS536
Starting at $113
Seattle — Boston
10/26/2025
Departure
Direct flight
HA6626
Starting at $373
Seattle — Boston
05/28/2026
Departure
Direct flight
AS536
Starting at $146
Unable to find information about the schedule of direct flights from
Seattle–Tacoma International Airport (SEA) is the region’s main international hub, serving a mix of legacy carriers and numerous low-cost and international airlines; it typically offers competitively priced options for both domestic and transpacific flights. Located about 14 miles south of downtown Seattle, travel to the city center usually takes 20–40 minutes by Link light rail or 20–40 minutes by car depending on traffic, with light rail fares generally in the low single-digit range and taxis/rideshares considerably higher. Frequent shuttle and rental-car services add flexibility. Pros: comprehensive amenities, strong connectivity and regular flight frequencies. Cons: can be busy during peak hours and ground transport times vary with congestion.
The cheapest flight ticket from Seattle to Boston according to data for the last 48 hours costs $120
Often the best time to buy tickets from Seattle to Boston is 2 months before departure.
Based on statistics over the past years, the lowest prices for flights from Seattle to Boston can be found flying in these months: October.
The fastest flights from Seattle to Boston start from 5 hours 19 minutes in the air.
The following airlines operate direct flights on the route Seattle — Boston: Alaska Airlines, Hawaiian Airlines
We carefully collect statistics on the search and pricing of airlines and, based on these data, we make an assumption about future prices. Thus, you can better understand which season is the cheapest to fly from Seattle to Boston
Logan International Airport (BOS) is Boston’s primary international gateway and the region’s main hub, handling a mix of legacy carriers, major network airlines and a growing number of low-cost carriers. Located about 3 miles northeast of downtown, it’s typically perceived as mid-to-premium in price compared with nearby secondary airports. Ground links include the MBTA Silver Line bus (~20–30 minutes, often free from central stations), regular taxis and rideshares (~15–30 minutes depending on traffic, fares vary), and airport shuttles. Pros: extensive domestic and transatlantic connectivity and fast public-transit access to the city. Cons: can be busy and subject to weather or peak-hour congestion, and parking/ground transport costs can add up.
We couldn't find any special offers for flights from Seattle to Boston