● Deals from
● Sweeping every destination…
$235usually $336−30%20 Oct 2026 · direct · score 65/100 · Solid
Why so cheap?
Researching this route’s pricing right now — checking season, sales, capacity and route news…
Fares by departure date
Today’s fare is cheaper than 91% of the 11 fares tracked for this route.
Questions people ask about this route
- What is the lowest price for a flight from Seattle to Boston right now?
- The lowest price our scan found today (2026-10-13) is $235 one-way fare, departing 20 Oct 2026, direct. Fares move constantly — the link below re-checks live availability on Aviasales.
- Is $235 a good price for a Seattle to Boston flight (SEA→BOS)?
- Yes by the data: this route usually costs about $336 (midpoint of Google Flights' typical price range), so $235 is 30% below usual and cheaper than 91% of the 11 fares tracked for this route. FareFloor's deal score for it is 65/100 as of 2026-10-13.
- When is the cheapest time to fly from Seattle to Boston in the coming months?
- Across the departure windows our 2026-10-13 scan compared, the lowest-priced departure found is 20 Oct 2026 at $235 one-way fare. Method: we sweep this origin's destinations several times a day via Google Flights data and keep the cheapest round-trip window per route — a cheaper window can appear any day, so treat this as today's answer, not a permanent one.
- Is there a direct flight from Seattle to Boston at this price?
- Yes — the $235 fare found today is a direct flight.