Seattle to Boston Flights
Flights from Seattle (SEA) to Boston (BOS) connect United States and United States. The great-circle distance is approximately 4,005 km, and a typical direct flight takes about 6 hours. Airports commonly used for this city pair include SEA and BOS. The reverse route is Boston to Seattle. Use the search tool below to compare live prices and schedules — do not treat any static text on this page as a live fare.
Route facts
- Origin
- Seattle, United States
- Destination
- Boston, United States
- Distance
- 4,005 km
- Typical duration
- about 6 hours
- Origin codes
- SEA
- Destination codes
- BOS
- Primary keyword
- flights from Seattle to Boston
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Route overview
Seattle to Boston is a city-pair air route between United States and United States. Travelers use this corridor for leisure, business, and connecting itineraries.
Primary search codes are SEA and BOS. Related codes: SEA → BOS.
Distance
Approximate flight distance: 4,005 km (great-circle). Actual flown distance can be longer depending on airway routing.
Duration
Typical block time for a direct flight is about 6 hours. Connecting itineraries take longer and depend on layover airports.
Airports
Seattle airports and metro codes: SEA.
Boston airports and metro codes: BOS.
Alternative routes
Related searches include the reverse route Boston to Seattle, other destinations from Seattle, and other origins into Boston.
Frequently asked questions
How long is the flight from Seattle to Boston?
Direct flights from Seattle to Boston typically take about 6 hours, depending on aircraft type, routing, and wind conditions. Connecting itineraries take longer.
What is the distance from Seattle to Boston?
The great-circle distance between Seattle and Boston is approximately 4,005 km. Flown distance can be longer depending on airways.
Which airports serve flights from Seattle to Boston?
Seattle is commonly searched with code SEA (related: SEA). Boston is commonly searched with code BOS (related: BOS).
Are there direct flights from Seattle to Boston?
Direct service availability varies by season and airline. Compare live schedules on Cheap Flights Worldwide for current nonstop and connecting options on this route.
What is the reverse flight route from Boston to Seattle?
The reverse city pair is Boston to Seattle. Distance is the same great-circle measure (4,005 km); block time can differ with winds and schedules.
Which countries does the Seattle to Boston route connect?
This route connects United States (Seattle) with United States (Boston).