$189 Cheap Sun Country Airlines flights San Francisco (SFO) to Boston (BOS)

View $189 flight on Sun, Nov 16, 2025Opens in a new window

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$189 Cheap Sun Country Airlines flights San Francisco (SFO) to Boston (BOS)

Prices were available within the past 7 days and start at $189 for one-way flights and $377 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Sun Country Airlines
Thu, Dec 4 - Mon, Dec 8
SFO
San Francisco
BOS
Boston
$377 Roundtrip, found 8 hours ago
$377
Roundtrip
found 8 hours ago
Select Sun Country Airlines flight, departing Thu, Dec 4 from San Francisco to Boston, returning Mon, Dec 8, priced at $377 found 8 hours ago
Flights from San Francisco (SFO) to Boston (BOS)
Origin airport
San Francisco Intl.
Destination airport
Logan Intl.
Airlines serving
Alaska Airlines, American Airlines, Delta, Frontier Airlines, JetBlue Airways, Southwest Airlines, Sun Country Airlines, United
Popular airline
JetBlue Airways
Distance
2697 mi
Average flight time
8 hours 42 mins

Frequently asked questions

How much is a Sun Country Airlines flight from San Francisco Intl. Airport (SFO) to Logan Intl. Airport (BOS)?
Apply the "Price (lowest to highest)" filter on Expedia to find cheap Sun Country Airlines round-trip flights from $377 from SFO to BOS. Affordable one-way fares from $189 are also on offer.**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.
What is the cheapest month to fly from SFO to BOS with Sun Country Airlines?
Sun Country Airlines flights to Boston are typically cheaper in the off-peak months of January and February. Whether you're searching for a round-trip or one-way ticket, you could score a better deal then.
What is the cheapest time to book flights from San Francisco Intl. Airport (SFO) to Logan Intl. Airport (BOS) with Sun Country Airlines?
To find cheap Sun Country Airlines fares from San Francisco Intl. Airport (SFO) to Logan Intl. Airport (BOS), start searching one to three months before your planned departure. Securing domestic flights 34 to 86 days in advance could save you 25% compared to booking just 6 to 12 days ahead. The day you book can also influence the cost. Sunday is generally the most affordable, while Monday is often the most expensive for domestic flights. You can save 6% on average by booking your journey on a Sunday.**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.
Does Sun Country Airlines fly nonstop from San Francisco Intl. Airport (SFO) to Logan Intl. Airport (BOS)?
To see if there's a direct route from SFO to BOS with Sun Country Airlines or other carriers, select the "Nonstop" filter when looking for tickets.
What is the earliest Sun Country Airlines flight from SFO to BOS?
Sort your results by "Morning" and "Early Morning" to see the earliest departures from SFO to BOS. Leaving 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.
What airports does Sun Country Airlines fly into in Boston?
Hop on a Sun Country Airlines flight from San Francisco Intl. Airport (SFO) to Boston, and you'll likely touch down at Logan Intl. Airport (BOS). This is the airline's primary hub here.
What kind of luggage can I take on a Sun Country Airlines flight from San Francisco Intl. Airport (SFO) to Logan Intl. Airport (BOS)?
You can have 1 cabin bag weighing up to 33 lb with dimensions no larger than 23 inches x 10 inches x 15 inches. You may also take a small personal item onboard when flying standard economy from SFO to BOS with Sun Country Airlines. Luggage restrictions can differ by cabin class and fare type, so check Sun Country Airlines's website to avoid any additional fees at the airport.
Why fly with Sun Country Airlines from SFO to BOS?
Sun Country Airlines makes flying from SFO to BOS enjoyable with top-tier customer service and a rewarding loyalty program. You could even start collecting points with Sun Country Rewards. Be sure to join our free One Key™ rewards program to earn OneKeyCash™*, which can be redeemed on future bookings.*OneKeyCash™ disclaimer - OneKeyCash™ is not redeemable for cash and can only be used on Expedia, Hotels.com and Vrbo.
Can I change or cancel my Sun Country Airlines flight from San Francisco Intl. Airport (SFO) to Logan Intl. Airport (BOS)?
You can usually cancel or modify your flight, although there may be additional fees if your booking was made more than 24 hours ago. Need flexible options? Use Expedia's "Changes included" and "No cancel fee" filters to find flights that won't charge extra if you need to revise your plans. To make modifications, head to "Trips," select your flight and click on "Manage Booking" for more details.

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