Cheap Flights from San Francisco (SFO) to Gaithersburg (GAI)

Popular airlines from San Francisco Intl. Airport (SFO) to Gaithersburg, MD (GAI-Montgomery County Airpark)

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Alternative airports near Gaithersburg

Prices were available within the past 7 days. Prices and availability are subject to change.

Select flight to Ronald Reagan Washington National DCA. Cheapest option available. Average driving time to city center is 38 minutes. Flights from $176
DCA
Ronald Reagan Washington National
Cheapest
Average driving time to city center38 min
Flights from $176
Select flight to Baltimore Washington Intl. Thurgood Marshall BWI. Average driving time to city center is 46 minutes. Flights from $497
BWI
Baltimore Washington Intl. Thurgood Marshall
Average driving time to city center46 min
Flights from $497

Frequently asked questions

How much does a flight from San Francisco Intl. Airport (SFO) to Gaithersburg, MD (GAI-Montgomery County Airpark) cost?
Get a cheap one-way flight or cheap return flight from San Francisco Intl. Airport (SFO) to Gaithersburg, MD (GAI-Montgomery County Airpark) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to find our cheapest flight deals on this route.
What is the cheapest month to fly from San Francisco Intl. Airport (SFO) to Gaithersburg, MD (GAI-Montgomery County Airpark)?
The cheapest month to fly from SFO to GAI is , when there's less demand. Off-peak months are typically when you'll find lower airfares between these airports.
What is the cheapest airline that flies from San Francisco Intl. Airport (SFO) to Gaithersburg, MD (GAI-Montgomery County Airpark)?
To find the cheapest airline flying from SFO to GAI, use Expedia's filter tool. Customize your search based on what's important to you, such as preferred carriers and seat class. You can then sort your results by "Price (lowest to highest)" to list the most affordable options first.
How many flights per day from San Francisco Intl. Airport (SFO) to Gaithersburg, MD (GAI-Montgomery County Airpark)?
There aren't any daily nonstop flights available from San Francisco Intl. Airport (SFO) to Gaithersburg, MD (GAI-Montgomery County Airpark). But you can book flights with layovers. Filter your search results on Expedia to include one or more stops, and you'll be on your way in no time.
What day of the week has the most flights from SFO to GAI?
Friday is usually the busiest day for flights, while Tuesday is often the quietest.* Keep in mind that flight schedules can change based on a range of factors, including the time of year and carrier.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from San Francisco Intl. Airport (SFO) to Gaithersburg, MD (GAI-Montgomery County Airpark)?
To avoid possible delays on the San Francisco Intl. Airport (SFO) to Gaithersburg, MD (GAI-Montgomery County Airpark) route, fly before 3 PM. Flights after this time have a 22% higher chance of cancellation.**Most reliable time of the day and month to travel recommendation is based on January through August 2024 flight status data sourced from OAG's global flight data platform.
What airports do you fly into for Gaithersburg from San Francisco Intl. Airport (SFO)?
San Francisco Intl. Airport (SFO) offers direct flights to Gaithersburg. These are a few of the airports you can fly to without stops:

  • Ronald Reagan Washington National Airport (DCA)
  • Washington Dulles Intl. Airport (IAD)
  • Baltimore Washington Intl. Thurgood Marshall Airport (BWI)

Is it cheaper to buy a plane ticket from San Francisco Intl. Airport (SFO) to Gaithersburg, MD (GAI-Montgomery County Airpark) last-minute?
Booking your plane ticket from SFO to GAI right before your journey is generally more expensive. However, if you're flexible with your travel dates and times, you could snag a cheap last-minute fare.
Is it cheaper to book a SFO to GAI flight and hotel package?
You can save money by securing a SFO to GAI flight and hotel package compared to booking separately. In fact, you could save hundreds of dollars by bundling with Expedia. And it's easy to manage it all in one convenient place. Once you've chosen your ideal flights and accommodations, consider adding extras like tours, car rentals and activities.
Can I cancel or change the date of my flight from San Francisco Intl. Airport (SFO) to Gaithersburg, MD (GAI-Montgomery County Airpark)?
If you reserved your SFO to GAI flight within the last 24 hours, you may be able to cancel or modify it at no cost. Depending on the airline and the type of fare you purchased, additional charges may apply for changes beyond this timeframe. Airline policies and contact information can be found in your itinerary or confirmation email. Or, visit our Customer Service portal if you want more information.

Travel information

Origin airport
San Francisco Intl.
Destination airport
Montgomery County Airpark
Distance
2425 mi

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San Francisco to Gaithersburg Flights

The cheapest times to fly from San Francisco to Gaithersburg

On average, Thursday can be the cheapest time to fly, according to data from the Airlines Reporting Corporation (ARC), one of the world's biggest databases for global airline sales. The data reveals that you could save up to 16% by flying on a Thursday—the cheapest day to travel on average—instead of a Sunday—the most expensive. Some of the most affordable flights from San Francisco to Gaithersburg are during the month of . You can find some of the cheapest flights from San Francisco to Gaithersburg with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from San Francisco to Gaithersburg

Sunday is one of the best days to book for cheap flights from San Francisco to Gaithersburg: Tickets reserved on a Sunday cost between 6% and 13% less than those reserved on a Friday, according to ARC data. The data also suggests booking early can also lead to cheaper airfares. You could save 24% by buying your tickets for domestic flights at least a month in advance and 10% by booking international flights 2 months in advance.

 

How to find cheap round-trip tickets from San Francisco to Gaithersburg

Being flexible with your dates and using Expedia's Price Drop Protection and Price Tracking features are some of the best ways of finding a cheap ticket from San Francisco to Gaithersburg in 2025. You can also book with separate airlines for your outbound and return journeys, from one-way. Expedia also offers Price Drop Protection, so if the cost of your airfare goes down after booking, you'll receive a credit for the difference*. This is available for a small fee, and is free to One Key Gold and Platinum tier members.

 

Expedia's Price Tracking feature means you can stay on top of airfares without manually checking every day. It sends you automated price alerts for cheap San Francisco to Gaithersburg flights and uses historical data to indicate when the best time to book is. Download Expedia's free app to activate this handy tool in a few easy taps.

 

You could also save big by booking one of Expedia's vacation packages. Bundling together your San Francisco to Gaithersburg airfare with your accommodations and car rental is often cheaper than booking everything separately. There’s also One Key, Expedia's generous rewards program. Join for free and you could earn One Key cash on most bookings to save on future adventures.

 

*Terms apply.

 

Disclaimer: ARC The statistics are based on average round-trip ticket prices between January and August 2023. The percentages you see are averages.

 

San Francisco to Gaithersburg Flights

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*Available to One Key members.