$100 Cheap flight deals from Boston (BOS) to SeaTac (SEA)
Earn rewards on top of your airline miles with Orbitz Rewards
Many airlines offer flexible change policies
Sign up to receive text alerts about your trip
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 $100 One Way, $199 Round Trip from Boston to SeaTac
Prices starting at $199 for return flights and $100 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
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, KLM, Qatar Airways, JAL, Aer Lingus, Air France, China Eastern Airlines, Delta Air Lines, Alaska Airlines, JetBlue, Hawaiian Airlines, Air Tahiti Nui, Korean Air, TAP Air Portugal, Virgin Atlantic |
Earliest Flight Arrival | 4:47PM UTC |
Latest Flight Arrival | 6:08AM UTC |
Boston to SeaTac
Looking for guaranteed low prices on Boston to SeaTac flights? Orbitz is your source and much more. From cutting-edge mobile tools to great deals, Orbitz makes it easy to book your dream vacation.
Frequent Flyers Earn Miles
Earn frequent flyer miles or points on Orbitz flights from Boston to SeaTac. When booking your Boston to SeaTac flights, have your frequent flyer number on hand and add it where prompted. Your Orbitz account can store your number for future use, meaning you never miss out on your rewards.
Book Orbitz on the Go
With the Orbitz mobile apps for Android and iPhone, you no longer have to be sitting at your desk to book Boston to SeaTac flights. With a few easy clicks, you can book your flights, research hotel rooms, and check your flight status and other important flight information.
Easily Plan Your Vacation
Not only does Orbitz offer great prices on flights from Boston to SeaTac, but you will also find fantastic deals on hotels, cruises, and vacation activities. Never miss out on that dream trip or waste hours waiting in long lines—you can buy tickets to attraction in advance with Orbitz to guarantee admission to your favorite places.
Best Deals At Your Fingertips
Orbitz combines low prices on Boston to SeaTac flights with discounts on quality hotels. Using Orbitz’s Display Matrix, you can see all your options and savings easily. With our low price guarantee, you know you have the best deals at your fingertips.
Other Flights from Boston
- Boston to Orlando
- Boston to London
- Boston to Miami
- Boston to Atlanta
- Boston to Los Angeles
- Boston to Chicago
- Boston to New York
- Boston to Paris
- Boston to Toronto
- Boston to Rome
- Boston to Dallas
- Boston to Houston
- Boston to Montreal
- Boston to Detroit
- Boston to Madrid
- Boston to Beijing
- Boston to Sao Paulo
- Boston to Kansas City
- Boston to Berlin
- Boston to Buenos Aires
Airports near Boston
Airports near SeaTac
Top Trending
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.