Cheap Frontier Airlines flights Boston (BOS) to San Francisco (SFO)

Flights from Boston (BOS) to San Francisco (SFO)
Origin airport
Logan Intl.
Destination airport
San Francisco Intl.
Distance
2697 mi
Average flight time
3 hours 34 mins

Frequently asked questions

How much is a Frontier Airlines flight from Logan Intl. Airport (BOS) to San Francisco Intl. Airport (SFO)?
You can find budget-friendly return Frontier Airlines flights from BOS to SFO by sorting your results from "Price (lowest to highest)" on Expedia. Or look for bargains for a one-way trip.**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 BOS to SFO with Frontier Airlines?
February is one of the least expensive months to fly to San Francisco with Frontier Airlines. You could also find great deals on return and one-way tickets in April.
What is the cheapest time to book flights from Logan Intl. Airport (BOS) to San Francisco Intl. Airport (SFO) with Frontier Airlines?
For cheap Frontier Airlines fares from Logan Intl. Airport (BOS) to San Francisco Intl. Airport (SFO), 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 what you pay. Sunday is typically the most affordable, while Monday is often the most expensive for domestic flights. You can save 6% on average by booking your trip 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 Frontier Airlines fly nonstop from Logan Intl. Airport (BOS) to San Francisco Intl. Airport (SFO)?
Simply enter your dates, press search and tick the "Nonstop" filter on Expedia to find any direct flights from BOS to SFO with Frontier Airlines or another carrier.
What is the earliest Frontier Airlines flight from BOS to SFO?
Sort your results by "Early Morning" and "Morning" to find the earliest departures from BOS to SFO. Setting off early means you're 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 Frontier Airlines fly into in San Francisco?
Board a Frontier Airlines flight from Logan Intl. Airport (BOS) to San Francisco, and you'll most likely arrive at San Francisco Intl. Airport (SFO). This is the airline's main hub in this destination.
Why fly with Frontier Airlines from BOS to SFO?
Offering a rewarding loyalty program, Frontier Airlines is a top pick for many passengers heading from BOS to SFO. Plus, if you're a Frontier Miles and One Key™ member booking through Expedia, you could earn OneKeyCash™* on eligible flights along with your airline miles.*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 Frontier Airlines flight from Logan Intl. Airport (BOS) to San Francisco Intl. Airport (SFO)?
Depending on the ticket type you purchased, a fee will generally apply if you cancel or reschedule your flight more than 24 hours after it's been confirmed. To secure flexible plane tickets, select our "Changes included" or "No cancel fee" filter when looking for flights. For more information on changing or canceling your reservation, visit "Trips," select your flight and click on "Manage Booking."
*Available to One Key members.