Flights from Seattle to Boston
Searching for cheap flights from Seattle to Boston? Compare SEA–BOS fares, carriers and travel times, and find the cheapest months to fly.
Seattle to Boston flights overview
Fares on the Seattle to Boston route move daily with demand, sales and seat availability, so BookingTrolley compares live prices from several suppliers in one place. Based on this route's seasonal pattern, fares average roughly $ 513.00 over the year. Nov tends to be the cheapest month to fly (around $ 427.00), while Jun is usually the most expensive at about $ 636.00 — a swing of roughly 49%.
The fastest nonstop Seattle to Boston flights cover about 4,005 km in roughly 5 hours. Both full-service and low-cost carriers serve this corridor; BookingTrolley compares their published fares so you can weigh price against flight time and baggage.
Frequently asked questions about flying from Seattle to Boston
Tuesday and Wednesday are typically the cheapest days on Seattle to Boston for United States travellers, with Friday and Sunday often higher. BookingTrolley compares mid-week and weekend fares on SEA–BOS.
Full-service and low-cost carriers compete from Seattle (SEA) to Boston (BOS). BookingTrolley compares published fares so United States travellers can see which carrier is cheapest.
Economy round-trip flights on Seattle to Boston vary by season. BookingTrolley tracks live fares on SEA–BOS so United States travellers can compare current prices.
The flying time from Seattle to Boston is about 5 hours nonstop, covering roughly 4,005 km between SEA and BOS. BookingTrolley schedules show connecting itineraries take longer depending on layover length.
Shoulder months often pair good weather with lower airfare into Boston. BookingTrolley price trends on Seattle to Boston show steeper rises around major United States holiday periods.
Use BookingTrolley's flexible-date comparison for Seattle (SEA) to Boston (BOS) to see which days cost least. Avoiding Friday–Sunday peaks is one of the fastest ways for United States travellers to cut the ticket price.
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