Direct flights from Seattle to Boston
- Usually $947 round trip
- ~11 flights a day
- 4 airlines
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When the nonstops leave
Typical weekly schedule · 79 flights per week (~11 per day) · Updated 64d ago
Most leave in the morning.
Arrive the same day
6:03 AM5 days a week
8:23 AM
10:13 AM
7:29 AM
7:38 AM
11:15 AMnot Sat
11:40 AM
3:36 PM
3:59 PMnot Sat
Arrive the next morning
11:13 PM
11:18 PMnot Sat
11:45 PM
Alaska Airlines
Arrives Terminal B
JetBlue Airways
Arrives Terminal C
Delta Air Lines
Arrives Terminal AArrives Terminal E
Frequently asked questions
Is there a direct flight from Seattle to Boston?
Yes. Alaska Airlines, Delta Air Lines and JetBlue Airways fly nonstop from Seattle (SEA) to Boston (BOS), several times daily. The flight takes about 5h 38m and covers 2,489 miles (4,006 km). Round-trip fares typically run around $947, with recent bookable fares from $677. Fares last checked 17 October 2026.
Which airlines fly direct from Seattle to Boston?
Alaska Airlines, Delta Air Lines, JetBlue Airways operate nonstop flights from Seattle to Boston.
How long is the flight from Seattle to Boston?
The nonstop flight from Seattle to Boston takes ~5h 38m (approximately 4006 km).
How often do direct flights operate from Seattle to Boston?
Nonstop flights from Seattle to Boston operate several times daily — 79 flights per week (~11 per day).
What days of the week are there direct flights from Seattle to Boston?
Direct flights from Seattle to Boston operate every day of the week. Alaska Airlines flies daily, JetBlue Airways flies daily, and Delta Air Lines flies daily.
How much is a round-trip flight from Seattle to Boston?
Round-trip flights from Seattle (SEA) to Boston (BOS) start at $677, with a typical fare around $947. Based on 14 recent fare combinations.