Seattle to Boston (BOS): March 2027 flight deals

Compare trip dates and fares.

22-day round-trip fares

Observed September 16, 2026 (UTC). Search a trip for current prices and flight details.

Round-trip totals in USD for 1 adult · Economy.

Destination	Trip dates	Axel Member	Airline fare	Stops	Search
Boston (BOS)	Mar 1–23, 2027	$318	$354	2 stops	Search for 1 adult · Dates · Travelers

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Observed September 17, 2026 (UTC). Check current prices.

USD for the listed travelers.

1 adult · Round-trip starting totals · 2–4 days

Starting totals are for the round trip. Choose a return flight to confirm the final total.

3 days between departure and return.

Trip / travelers	Dates	Flights	Axel Member	Airline fare	Next step
SEA–BOS · 1 adult	Mar 4–7, 2027	Out: Alaska Airlines · Nonstop · 5h 24m	Round-trip starting total: $399	Round-trip starting total: $447 — return selection pending	Search for 1 adult · Change dates · Travelers / cabin
SEA–BOS · 1 adult	Mar 5–8, 2027	Out: Alaska Airlines · Nonstop · 5h 24m	Round-trip starting total: $399	Round-trip starting total: $447 — return selection pending	Search for 1 adult · Change dates · Travelers / cabin

1 adult · Complete round-trip totals · 2–4 days

Complete round-trip totals; both flights included.

2 days between departure and return.

Trip / travelers	Dates	Flights	Axel Member	Airline fare	Next step
SEA–BOS · 1 adult	Mar 1–3, 2027	Out: Delta Air Lines · 1 stop (MSP) · 7h 8m; Return: Delta Air Lines · Nonstop · 6h 34m	$496	$552 — round-trip total	Search for 1 adult · Change dates · Travelers / cabin

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