
Book Cheap Delta flight from Seattle (SEA) to Boston (BOS) from CA $216
Find The Best Day to Book a Cheap Delta Flights From Seattle to Boston
Cheapest Delta Flights from Seattle (SEA) to Boston (BOS)
The cheapest flights to Logan Intl. found within the past 7 days were CA $423 round trip and CA $216 one way. Prices and availability subject to change. Additional terms may apply.
Frequently asked questions
Grab a great Delta flight from SEA to BOS
To find a great deal on Delta 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 Delta 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 Delta between Seattle and Boston
Delta 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 Delta are March.
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 Delta 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 |
|---|---|---|---|
| ATL | USA | Hartsfield-Jackson Atlanta Intl. | 252 |
| DTW | USA | Detroit Metropolitan Wayne County | 156 |
| MSP | USA | Minneapolis - St. Paul Intl. | 131 |
| SLC | USA | Salt Lake City Intl. | 116 |
| SEA | USA | Seattle - Tacoma Intl. | 57 |
| LAX | USA | Los Angeles Intl. | 41 |
| AMS | NLD | Schiphol | 31 |
| YYC | CAN | Calgary Intl. | 26 |
| YYZ | CAN | Pearson Intl. | 24 |
| JFK | USA | John F. Kennedy Intl. | 23 |
Travelers ❤️ these 🏨 after their flight to Boston

Hilton Boston Logan Airport
Ease of check in, convenient, good restaurant, comfortable bed
Reviewed on Dec 18, 2025

Embassy Suites Boston Logan Airport
Excellent place! Very friendly!
Reviewed on Dec 17, 2025

Harborside Inn Of Boston
The hotel has a very authentic and chic décor, with a great atmosphere. The staff was friendly, and the location is excellent — very convenient and within walking distance to most attractions. A couple of small issues (housekeeping and the TV) were resolved promptly after I reported them. I did not ...
Reviewed on Dec 15, 2025
Want more than a(n) Delta Flight from Seattle to Boston?
Popular Delta Flight Routes from SEA
Top Delta Flight Routes from BOS
Domestic
- Montreal to Las Vegas (YUL - LAS)
- Vancouver to Delhi (YVR - DEL)
- Montreal to Fort Lauderdale (YUL - FLL)
- Toronto to Dubai (YYZ - DXB)
- Toronto to Miami (YYZ - MIA)
- Toronto to New York (YYZ - JFK)
- Winnipeg to Delhi (YWG - DEL)
- Toronto to Los Angeles (YYZ - LAX)
- Toronto to Las Vegas (YYZ - LAS)
- Toronto to Istanbul (YYZ - IST)
International
- Toronto to Istanbul (YYZ - IST)
- Toronto to Orlando (YYZ - MCO)
- Vancouver to Delhi (YVR - DEL)
- Toronto to Istanbul (YYZ - IST)
- Vancouver to Las Vegas (YVR - LAS)
- Montreal to Fort Lauderdale (YUL - FLL)
- Toronto to Delhi (YYZ - DEL)
- Montreal to Paris (YUL - CDG)
- Montreal to Fort Lauderdale (YUL - FLL)
- Toronto to New York (YYZ - JFK)
Most Popular
- YVR - PSP
- YVR - LAS
- DTW - DFW
- WestJet Vancouver (YVR) to Las Vegas (LAS) flights
- Porter Airlines Toronto (YTZ) to Myrtle Beach (MYR) flights
- YUL - FLL
- BUF - DFW
- YVR - FLL
- Delta Detroit (DTW) to Las Vegas (LAS) flights
- BUF - MYR
- DTW - FLL
- FLL - YYZ
- YVR - SAN
- DTW - MYR
- YYZ - SEA
- YYZ - DFW
- Air Canada Toronto (YYZ) to Myrtle Beach (MYR) flights
- Spirit Airlines Niagara Falls (IAG) to Myrtle Beach (MYR) flights
- JetBlue Airways Buffalo (BUF) to Fort Lauderdale (FLL) flights
- Porter Airlines Toronto (YTZ) to Philadelphia (PHL) flights
- Air Canada Toronto (YYZ) to Las Vegas (LAS) flights
- WestJet Edmonton (YEG) to Las Vegas (LAS) flights
- YYZ - NYC
- YYZ - PHL
- STL - GUF
- Air Canada Toronto (YYZ) to Fort Lauderdale (FLL) flights
- YYZ - LAS
- WestJet Calgary (YYC) to Seattle (SEA) flights
- Swoop Abbotsford (YXX) to Las Vegas (LAS) flights
- SEA - DEL
