$162 Cheap Sun Country Airlines flights Boston (BOS) to San Francisco (SFO)

Grab cheap return Sun Country Airlines flights from $323 from BOS to SFO by organizing your results from “Price (lowest to highest)” on Expedia. Or look for bargains from $162 for a one-way journey.**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.

Sun Country Airlines flights to San Francisco are generally more affordable in the off-peak months of February and April. Whether you’re in search of a one-way or a return ticket, you could find a better deal then.

Search for affordable Sun Country Airlines flights from Logan Intl. Airport (BOS) to San Francisco Intl. Airport (SFO) one to three months ahead of your departure day. Travelers who book domestic flights 34 to 86 days in advance can save 25% compared to those who book just 6 to 12 days ahead. Regardless of fare class and itinerary, the best day of the week to book a domestic flight is generally Sunday and the most expensive day is typically Monday. Passengers who book on a Sunday can save 6% on average compared to those who book their travel on a Monday.**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, press search and tick the “Nonstop” filter on Expedia to browse any direct flights from BOS to SFO with Sun Country Airlines or other airlines.

Sort your results by “Early Morning” and “Morning” to see the earliest flights from BOS to SFO. Heading off early means flight cancellations are less likely.**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.

Sun Country Airlines flights from Logan Intl. Airport (BOS) to San Francisco arrive at San Francisco Intl. Airport (SFO). This is the main gateway to this city.

With Sun Country Airlines, you can fly standard economy from BOS to SFO with a small personal item and 1 cabin bag. Your carry-on bag should be no larger than 23 inches x 10 inches x 15 inches and weigh under 33 lb. Going over baggage restrictions may lead to extra charges, so check your airline’s latest guidelines before completing your booking.

Offering top-tier customer service and a rewarding loyalty program, Sun Country Airlines is a popular option for many travelers flying from BOS to SFO. Plus, if you’re a Sun Country Rewards and One Key™ member booking through Expedia, you could earn OneKeyCash™* on eligible flights on top of your airline miles, which can be put toward future travel.*OneKeyCash™ disclaimer - OneKeyCash™ is not redeemable for cash and can only be used on Expedia, Hotels.com and Vrbo.

Changes are generally free within 24 hours of making your booking, but your airline may charge a fee after that time. For more information about altering your reservation, go to your “Trips,” select your flight and click on “Manage Booking.” If you want the freedom to adjust your plans without additional charges, apply the “Changes included” or “No cancel fee” filter when organizing your trip.