
Book Cheap Alaska Airlines flight from Seattle (SEA) to Boston (BOS) from CA $185
Find The Best Day to Book a Cheap Alaska Airlines Flights From Seattle to Boston
Cheapest Alaska Airlines Flights from Seattle (SEA) to Boston (BOS)
The cheapest flights to Logan Intl. found within the past 7 days were CA $345 round trip and CA $185 one way. Prices and availability subject to change. Additional terms may apply.
Frequently asked questions
Grab a great Alaska Airlines flight from SEA to BOS
To find a great deal on Alaska Airlines flights with Travelocity, simply enter your origin and destination airports, pick your travel dates, and hit search. From here, you can sort by price, flight duration, and arrival/departure time. You can also filter to find nonstop flights.
Flying Alaska Airlines Seattle to Boston gives you fights to choose from. With that direct flight time of , you’ll be touching down before you know it.
Find cheap flights with Alaska Airlines between Seattle and Boston
Alaska Airlines has a range of great fares on stacks of flights, and to find the most affordable for you, there are a few tricks you can try. Booking in advance, for example, is a great way to grab a fantastic deal. Also, choose the cheapest month, if you can. One-way flights from Seattle to Boston with Alaska Airlines are December.
The more flexible you are, the more affordable flights you’re likely to find. Consider one-way flights and connecting flights, as well as standard roundtrip and direct options. Even if you’re flying today, cheap last-minute flights are easy to find by entering your travel dates and hitting search.
Reasons to book your Alaska Airlines flights with Travelocity
Travelocity makes it easy to book a seat, anywhere in the world. The vast inventory, fast search, and advanced filters put some of the best deals on the planet in one place. Whether you’re traveling on business, with friends, family, or on your own, take your pick from some fantastic options. And with free cancellation and pay later options, you can travel more and worry less.
Airport code | Country | Airport name | Number of flights |
|---|---|---|---|
| SEA | USA | Seattle - Tacoma Intl. | 115 |
| ORD | USA | O'Hare Intl. | 44 |
| LAX | USA | Los Angeles Intl. | 24 |
| PDX | USA | Portland Intl. | 23 |
| ANC | USA | Ted Stevens Anchorage Intl. | 22 |
| SFO | USA | San Francisco Intl. | 21 |
| SAN | USA | San Diego Intl. | 18 |
| JNU | USA | Juneau Intl. | 10 |
| SJC | USA | Norman Y. Mineta San Jose Intl. | 10 |
| GEG | USA | Spokane Intl. | 7 |
Travelers ❤️ these 🏨 after their flight to Boston

Seaport Hotel Boston
Everything was sooo perrfect....
Reviewed on Oct 31, 2025

Hilton Boston Logan Airport
Clean room, great staff
Reviewed on Oct 30, 2025

Omni Boston Hotel at the Seaport
Good
Reviewed on Oct 29, 2025
Want more than a(n) Alaska Airlines Flight from Seattle to Boston?
Popular Alaska Airlines Flight Routes from SEA
Top Alaska Airlines Flight Routes from BOS
Domestic
- Vancouver to Honolulu (YVR - HNL)
- Vancouver to Puerto Vallarta (YVR - PVR)
- Vancouver to New York (YVR - JFK)
- Vancouver to Los Angeles (YVR - LAX)
- Vancouver to Atlanta (YVR - ATL)
- Vancouver to Las Vegas (YVR - LAS)
- Vancouver to San José del Cabo (YVR - SJD)
- Calgary to Cancun (YYC - CUN)
- Toronto to Los Angeles (YYZ - LAX)
- Vancouver to Kahului (YVR - OGG)
International
- Vancouver to Honolulu (YVR - HNL)
- Toronto to Los Angeles (YYZ - LAX)
- Vancouver to Tokyo (YVR - HND)
- Vancouver to Las Vegas (YVR - LAS)
- Calgary to Puerto Vallarta (YYC - PVR)
- Vancouver to San Francisco (YVR - SFO)
- Vancouver to London (YVR - LHR)
- Vancouver to Atlanta (YVR - ATL)
- Vancouver to Los Angeles (YVR - LAX)
- Vancouver to Puerto Vallarta (YVR - PVR)
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