3 airlines fly nonstop from Seattle to Boston.
Checking today’s fares with the airlines.
| Airline | From | To |
|---|---|---|
| Alaska Airlines | SEA Seattle-Tacoma International Airport | BOS Boston Logan International Airport |
| Delta Air Lines | SEA Seattle-Tacoma International Airport | BOS Boston Logan International Airport |
| JetBlueSeasonal | SEA Seattle-Tacoma International Airport | BOS Boston Logan International Airport |
Nonstop service as of October 2026. Airlines change schedules seasonally.
2 miles (4 km) from the city centre. 42.7 million passengers in 2024
| How | Route | Cost |
|---|---|---|
| Bus | MBTA Silver Line SL1 from Logan terminals to South Station | free when boarding at the airport |
| Subway | MBTA Blue Line from Airport station (free shuttle bus from terminals), connecting to Orange and Green lines | $2.40 one way |
This is domestic travel for US citizens: no passport or visa is needed, but travelers 18 and over need a REAL ID-compliant license or another accepted ID to fly.
Boston is 3 hours ahead of Seattle. Boston uses the US dollar (USD).
Read the Boston guide: when to go, weather, airports and tips
Nonstop flight times vary by airline and season; flights with a connection take longer.
As of October 2026, Alaska Airlines, Delta Air Lines and JetBlue fly this route nonstop, some of them seasonally.
About 2,485 miles (4,000 km), measured between the city centres.
Boston is 3 hours ahead of Seattle.
This is domestic travel for US citizens: no passport or visa is needed, but travelers 18 and over need a REAL ID-compliant license or another accepted ID to fly.
MBTA Silver Line SL1 from Logan terminals to South Station, free when boarding at the airport.
Information checked in October 2026. Schedules, fares and entry rules change, so confirm with the airline or the official source before you travel.