How does Airfarewatchdog find such amazing flight deals daily?

We are a group of people really passionate about flight deals. Every day, we track thousands of flight routes and pick out only the best deals we can find. We consider things like number of stops, total flight time, travel dates, and maximizing time at each destination. We also track prices over time, letting you know when fares drop or are expected to rise allowing you to feel confident in booking your flight. Plus, we also watch for unadvertised deals, promo code sales, and mistake pricing (it can happen!).

Why should I sign up for Airfarewatchdog?

Flight prices are always changing; instead of spending all day searching for flight deals, we’ll do the work and alert you when the deals happen. We’ll share money-saving tips, industry news (like new routes from your home city) and airline flash sales.

How do I get alerted when you find great flight deals?

<a href="/fare-alerts/" target="_blank">Sign up for alerts</a> on as many routes as you want, and we’ll send you an email when prices are low. You can also get inspired by <a href="/fare-alerts/" target="_blank">signing up for Departure Alerts</a> for cheap fares to popular destinations from your home airport.

Does Airfarewatchdog have deals from all airlines?

Yes! We track prices across all airlines, even the ones that don’t advertise on traditional booking sites (like Southwest).

Can I book flights on Airfarewatchdog?

No, Airfarewatchdog is not a booking website. We report on the flight deals we find each day, including the price we found, the dates of travel, and other important information to help you find the fare. We then provide links to popular booking sites where you can ultimately book your travel.

How is Airfarewatchdog different from other flight comparison websites?

We have years of industry knowledge and know a good deal when we see it. Unlike Online Travel Agencies that show every flight, we do the analysis for you and surface only the best prices. We will also track prices over time on your favorite routes, or inspire trips you might not have considered. Of course, if you have exact dates for your trip, we also offer a comparison tool to allow you to search current prices across our partners’ sites.

Do you have weekend-only fares available?

Yes, and we’re glad you asked! Visit <a href="/weekender/" target="_blank">The Weekender</a> to find our best weekend flight deals to popular destinations from your home airport. We find the lowest prices on short flights for 2 or 3-night stays, and only show deals that will maximize time at each destination.

Do your fare experts find Airline Promo Codes?

We know airline promo codes can save you hundreds of dollars on flights, so we round up the best airline promo code deals that are available right now. You can find the most up-to-date promo codes from our fare experts by visiting <a href="/blog/50074948/the-best-airline-promo-codes-available-now/" target="_blank">“The Best Flight Promo Codes Right Now”</a> on the <a href="/blog/" target="_blank">Airfarewatchdog Blog</a>.

How often should I come back?

Our Hottest Flight Deals of the Day are updated daily and show fare deals from your home airport. Check back often as our fare experts can find more amazing deals throughout the day. You can also <a href="/fare-alerts/" target="_blank">sign up for airfare deals</a>, low price fare alerts, special offers, and more delivered right to your inbox.

$233RT+ Boston, MA (BOS) to San Francisco, CA (SFO) Flights

Home Fares From A City Boston, MA Boston, MA (BOS) To San Francisco, CA (SFO)

Prices on this fare have changed! See the most recent price we found below.