Helping travelers to find the best flight offers
Fly from Boston to Seattle with confidence — our search scans over 700 airlines, more than 50 agencies, and 5+ top booking systems to uncover the best prices, schedules, and travel conditions for your trip. Compare nonstop and connecting options in seconds and lock in the itinerary that fits your timing and budget.
Fly nonstop from Boston to Seattle for the fastest, most convenient way to cross the country—perfect when you value time and comfort. While connecting options can sometimes be cheaper, a direct flight gets you to the Pacific Northwest sooner and with fewer hassles, making it ideal for business trips or weekend escapes.
A direct flight is the easiest way to get to your destination. The following airlines operate non-stop flights from Boston to Seattle:
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 Boston to Seattle departs on 11/05/2025, is operated by American Airlines and costs $137
The cheapest roundtrip flight from Boston to Seattle departs on 12/12/2025, is operated by Alaska Airlines and costs $198
Fastest flight from Boston to Seattle takes 6h 16m
There are direct flights on this route 6 days a week: Su, Tu, We, Th, Fr, and Sa
The distance between Boston and Seattle is 3999km (2479 miles). There are 97 direct flights from Boston to Seattle. The time difference between Boston and Seattle is 3h. Flights from Boston begin at 7:00 AM. The latest flight from Boston departs at 6:55 PM
More than 5 airlines operate flights from Boston to Seattle, including Hawaiian Airlines, Alaska Airlines, JetBlue Airways, United Airlines, and American Airlines. This is a popular route, so passengers can choose tickets based on budget and preferences. Ticket prices start from $137, and our service lets you instantly compare all options. The variety of offers simplifies planning: you can choose budget fares or more comfortable options with baggage included or extra services. We help you find the best deals so your trip is cost-efficient.
Starting at $172
Starting at $156
Starting at $178
Starting at $177
Starting at $137
Boston — Seattle
10/21/2025
Departure
Direct flight
HA459
Starting at $172
Boston — Seattle
10/23/2025
Departure
Direct flight
AS307
Starting at $329
Boston — Seattle
10/24/2025
Departure
Direct flight
B6397
Starting at $220
Boston — Seattle
10/25/2025
Departure
Direct flight
B6397
Starting at $178
Boston — Seattle
11/02/2025
Departure
Direct flight
AS3449
Starting at $822
Boston — Seattle
11/05/2025
Departure
Direct flight
UA1008
Starting at $177
Boston — Seattle
11/28/2025
Departure
Direct flight
AS459
Starting at $418
Boston — Seattle
04/08/2026
Departure
Direct flight
AS537
Starting at $224
Unable to find information about the schedule of direct flights from
Boston Logan International (BOS) is the city’s main international gateway and a full-service hub for legacy carriers while also handling many low-cost flights, making it a common choice for both business and leisure travelers. Located about 3–5 miles from downtown Boston, Logan is reachable by the MBTA Blue Line and Silver Line buses in roughly 20–30 minutes (fares typically under $5), as well as by taxis and rideshares that can take 10–25 minutes depending on traffic and cost more. Pros: frequent flights, international connections and on-site amenities; cons: can be busy at peak times and ground transport may be affected by congestion or higher fees for some services.
Seattle-Tacoma International Airport (SEA) is the primary international gateway for the Seattle region, functioning as a major hub for full-service carriers and offering a wide range of domestic and transpacific routes. Carriers typically include legacy airlines and several international operators, while low-cost carriers also serve many domestic routes. SEA sits about 14 miles (22 km) south of downtown Seattle; travel times are commonly 20–35 minutes by Link light rail or 20–45 minutes by taxi/rideshare depending on traffic. Public transit fares tend to be modest, with rideshares and taxis costing more. Pros: frequent flights, good amenities and direct connections; cons: can be busy during peak times and security lines may be long.
We couldn't find any special offers for flights from Boston to Seattle
The cheapest flight ticket from Boston to Seattle according to data for the last 48 hours costs $137
Often the best time to buy tickets from Boston to Seattle is 2 months before departure.
Based on statistics over the past years, the lowest prices for flights from Boston to Seattle can be found flying in these months: October.
The fastest flights from Boston to Seattle start from 6 hours 16 minutes in the air.
The following airlines operate direct flights on the route Boston — Seattle: Hawaiian Airlines, Alaska Airlines, JetBlue Airways
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 Boston to Seattle