$109 Cheap flight deals from Boston (BOS) to SeaTac (SEA)
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This Weekend's Flight Deals from Boston to SeaTac
This weekend's flight prices found within the past 7 days, for the period specified. Prices and availability are subject to change. Additional terms apply.
Airfares from $109 One Way, $217 Round Trip from Boston to SeaTac
Prices starting at $217 for return flights and $109 for one-way flights to SeaTac were the cheapest prices found within the past 7 days, for the period specified. Prices and availability are subject to change. Additional terms apply.
SeaTac economy flight packages
Graduate by Hilton Seattle
Aug 8 - Aug 16
Boston (BOS) to Seattle (SEA)
Seattle (SEA) to Boston (BOS)
Reviewed on Apr 20, 2025
1 Hotel Seattle
Aug 7 - Aug 11
Boston (BOS) to Seattle (SEA)
Seattle (SEA) to Boston (BOS)
Reviewed on May 27, 2025
citizenM Seattle Pioneer Square
Aug 8 - Aug 16
Boston (BOS) to Seattle (SEA)
Seattle (SEA) to Boston (BOS)
Reviewed on Jun 11, 2025
More About Flying To SeaTac from Boston
Route Information for Flights from Boston to SeaTac
Origin Airport IATA Code | BOS |
|---|---|
Destination Airport IATA Code | SEA |
Distance | 2487 mi |
Direct Flight Airlines | American Airlines, Condor, Qatar Airways, JAL, Aer Lingus, Air France, Delta Air Lines, United Airlines, Alaska Airlines, Etihad Airways, JetBlue, LATAM Airlines, Finnair, SAS, Hawaiian Airlines, Air Tahiti Nui, Korean Air, TAP Air Portugal, Virgin Atlantic |
Earliest Flight Arrival | 6:50PM UTC |
Latest Flight Arrival | 5:21AM UTC |
Boston to SeaTac
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Fare, taxes & fees: Fares include all taxes and fees, except baggage fees. Rates shown reflect fares found by other Orbitz users over the past 7 days. Due to rapidly changing airline prices & seat availability, these fares may no longer be available.
Refunds/changes/cancellations: Itinerary changes, if permitted for the fare, will have a $30 service fee charged by Orbitz. Additional airline charges may apply.
Other conditions: Schedules, fares and rules are subject to change without notice. Seats are limited and may not be available on all flights/dates or in all markets. Lower fares may be available. Fares will not be honored retroactively or in exchange for any wholly/partially unused ticket. Tickets are non-transferable and non-refundable. Fare rules are provided for the selected itinerary before booking.