$129 Cheap United flights Sacramento (SMF) to Boston (BOS)

Finding cheap one-way United Airlines flights from SMF to BOS from $129 on Expedia is a breeze — just filter by “Price (lowest to highest).” Or check out our budget-friendly round-trip fares from $230 for your next exciting getaway.**These prices were available on Expedia within the past 7 days, for flights departing within the next year. Prices and availability are subject to change. Additional terms apply.

United Airlines flights to Boston are often cheaper in the off-peak months of January and February. Whether you need a return or one-way ticket, you could find a better deal then.

Start searching one to three months ahead of your departure date to score cheaper fares on United Airlines flights from Sacramento Intl. Airport (SMF) to Logan Intl. Airport (BOS). You can save 25% by booking your domestic flight 34 to 86 days in advance compared to last-minute reservations made 6 to 12 days out. You could also cut costs by buying your fare on a Sunday, as it’s 6% cheaper on average than a Monday, the most expensive day to book.* Get the timing right, and you can enjoy significant savings on domestic flights.*Ideal booking window recommendation is based on average round-trip ticket prices for January through November for 2024. Best day of the week to book recommendation is based on average round-trip ticket prices for January through October 2024. All data sourced from ARC’s global airline sales database.

Fill in your dates, click search and check the “Nonstop” filter on Expedia to find any direct flights from SMF to BOS with United Airlines or another carrier.

Sort your results by “Morning” and “Early Morning” to browse the earliest flights from SMF to BOS. Taking off early means you’re 20% less likely to experience cancellations.**Most reliable time of the day recommendation is based on January through August 2024 flight status data sourced from OAG’s global flight data platform.

United Airlines flights from Sacramento Intl. Airport (SMF) to Boston come in to Logan Intl. Airport (BOS). This is the main entry point to this city.

Travel from SMF to BOS with United Airlines and enjoy a host of benefits starting with a rewarding loyalty program. When you book through Expedia as a United Mileage Plus and One Key™ member, you can also earn OneKeyCash™* to use on select future travel purchases.*OneKeyCash™ disclaimer - OneKeyCash™ is not redeemable for cash and can only be used on Expedia, Hotels.com and Vrbo.

Changes are typically free within 24 hours of making your booking, but your airline may charge you after that time. For more information about altering your reservation, check out your “Trips,” select your flight and click on “Manage Booking.” If you want the flexibility to update your itinerary without additional charges, apply the “Changes included” and “No cancel fee” filters when planning your next adventure.