Seattle (SEA) → Boston (BOS)
About Seattle to Boston Flights
Discover the best flights from Seattle to Boston, covering 4,005 km in approximately 5h 30m. Seattle (SEA) to Boston (BOS) is one of the popular medium-haul routes within United States. With 3 major airlines operating this route including direct flights, travelers have plenty of options to choose from. Whether you're traveling for business or leisure, our comprehensive guide helps you find the best deals, understand seasonal price variations, and choose the right airline for your journey from Seattle to Boston.
12-Month Price History
Flight prices from Seattle to Boston vary significantly throughout the year. February typically offers the best deals with average prices around $578, while July sees the highest prices, averaging $953. Savvy travelers can save up to 39% by choosing their travel dates wisely.
Best Time to Fly
Cheapest Month
February
Save up to 40% on average
Most Expensive
July
Peak season pricing
Book in Advance
64 days
For best prices
Booking Tips
For the best prices on Seattle to Boston flights, we recommend booking 75 days in advance. Domestic flights typically see price increases as the departure date approaches, so early booking is advisable. Tuesday and Wednesday departures often offer the lowest fares, while Friday and Sunday flights tend to be more expensive due to business and leisure travel demand. Consider flying early morning or late evening for additional savings, as these off-peak times usually have lower demand.
Airlines Serving This Route
| Airline | Economy | Business | First |
|---|---|---|---|
JetBlue Airways B6 | $810 | $1880 | - |
Alaska Airlines AS | $1040 | $3150 | $4500 |
Delta Air Lines DL | $1090 | $3540 | $5120 |
JetBlue Airways
B6
Economy
$810
Business
$1880
First
-
Alaska Airlines
AS
Economy
$1040
Business
$3150
First
$4500
Delta Air Lines
DL
Economy
$1090
Business
$3540
First
$5120
Prices shown are estimates based on historical data. Actual prices may vary based on dates, availability, and current promotions.
Alternative Flight Options
Seattle → Hartford
Seattle-Tacoma International (SEA) to Bradley International (BDL)
Distance: 3,902 km
Average price: $685
Seattle → Portland
Seattle-Tacoma International (SEA) to Portland International Jetport (PWM)
Distance: 3,995 km
Average price: $699
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Frequently Asked Questions
How long is the flight from Seattle to Boston?
The flight time from Seattle (SEA) to Boston (BOS) is approximately 5 hours and 30 minutes. This duration is for direct flights and may vary depending on aircraft type, weather conditions, and air traffic.
What is the distance between Seattle and Boston?
The aerial distance between Seattle and Boston is 4,005 kilometers (2,489 miles). This is the straight-line distance, which is used to calculate flight times.
Which airlines fly from Seattle to Boston?
Several airlines operate flights between Seattle and Boston, including Delta Air Lines, Alaska Airlines, JetBlue Airways. Direct flights are available on this route.
What is the cheapest month to fly from Seattle to Boston?
Based on historical data, February typically offers the lowest airfares for flights from Seattle to Boston. However, prices can vary based on holidays, events, and airline promotions. We recommend checking our price calendar for the most up-to-date information.
How far in advance should I book my flight to Boston?
For the best prices on Seattle to Boston flights, we recommend booking 75 days in advance. Domestic flights can sometimes offer good last-minute deals, but advance booking is usually cheaper.
Do I need a visa to travel from Seattle to Boston?
Visa requirements depend on your nationality and the purpose of your visit. Since this is a domestic flight, no visa is required for citizens.
What is the time difference between Seattle and Boston?
Seattle operates on America/Los_Angeles time zone, while Boston is in the America/New_York time zone. For current time differences and to plan your schedule, visit our partner site timezig.com for accurate timezone conversions.