Boston to Seattle Flights
Flights from Boston (BOS) to Seattle (SEA) 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 BOS and SEA. The reverse route is Seattle to Boston. 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
- Boston, United States
- Destination
- Seattle, United States
- Distance
- 4,005 km
- Typical duration
- about 6 hours
- Origin codes
- BOS
- Destination codes
- SEA
- Primary keyword
- flights from Boston to Seattle
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Route overview
Boston to Seattle 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 BOS and SEA. Related codes: BOS → SEA.
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
Boston airports and metro codes: BOS.
Seattle airports and metro codes: SEA.
Alternative routes
Related searches include the reverse route Seattle to Boston, other destinations from Boston, and other origins into Seattle.
Frequently asked questions
How long is the flight from Boston to Seattle?
Direct flights from Boston to Seattle typically take about 6 hours, depending on aircraft type, routing, and wind conditions. Connecting itineraries take longer.
What is the distance from Boston to Seattle?
The great-circle distance between Boston and Seattle is approximately 4,005 km. Flown distance can be longer depending on airways.
Which airports serve flights from Boston to Seattle?
Boston is commonly searched with code BOS (related: BOS). Seattle is commonly searched with code SEA (related: SEA).
Are there direct flights from Boston to Seattle?
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 Seattle to Boston?
The reverse city pair is Seattle to Boston. Distance is the same great-circle measure (4,005 km); block time can differ with winds and schedules.
Which countries does the Boston to Seattle route connect?
This route connects United States (Boston) with United States (Seattle).