Cheap Flights from San Juan (SJU) to Gaithersburg (GAI)

Popular airlines from Luis Munoz Marin Intl. Airport (SJU) to Gaithersburg, MD (GAI-Montgomery County Airpark)

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. Average driving time to city center is 38 minutes. Flights from $302
DCA
Ronald Reagan Washington National
Average driving time to city center38 min
Flights from $302
Select flight to Baltimore Washington Intl. Thurgood Marshall BWI. Average driving time to city center is 46 minutes. Flights from $352
BWI
Baltimore Washington Intl. Thurgood Marshall
Average driving time to city center46 min
Flights from $352
Select flight to Washington Dulles Intl. IAD. Cheapest option available. Average driving time to city center is 41 minutes. Flights from $199
IAD
Washington Dulles Intl.
Cheapest
Average driving time to city center41 min
Flights from $199

Frequently asked questions

How much does a flight from Luis Munoz Marin Intl. Airport (SJU) to Gaithersburg, MD (GAI-Montgomery County Airpark) cost?
Lock in a cheap one-way flight or cheap return flight from Luis Munoz Marin Intl. Airport (SJU) 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 offers on this route.
What is the cheapest month to fly from Luis Munoz Marin Intl. Airport (SJU) to Gaithersburg, MD (GAI-Montgomery County Airpark)?
The cheapest month to fly from SJU to GAI is , when demand is low. Off-peak months are generally when airlines offer better prices between these airports.
What is the cheapest airline that flies from Luis Munoz Marin Intl. Airport (SJU) to Gaithersburg, MD (GAI-Montgomery County Airpark)?
To find the cheapest airline that'll fly you from SJU to GAI, use Expedia's filter tool. Tailor your search based on your travel style, 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 Luis Munoz Marin Intl. Airport (SJU) to Gaithersburg, MD (GAI-Montgomery County Airpark)?
You'll need to catch a flight with a layover when traveling from Luis Munoz Marin Intl. Airport (SJU) to Gaithersburg, MD (GAI-Montgomery County Airpark). There are no daily direct flights on this route. However, simply filter your search to include one or two stops to find the best option for your trip.
What day of the week has the most flights from SJU to GAI?
You'll generally find Tuesday the quietest day for flights, while Fridays tend to be the busiest.* However this can vary from season to season and during public holidays or peak travel times.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from Luis Munoz Marin Intl. Airport (SJU) to Gaithersburg, MD (GAI-Montgomery County Airpark)?
Opt for a flight from Luis Munoz Marin Intl. Airport (SJU) to Gaithersburg, MD (GAI-Montgomery County Airpark) that leaves before 3 PM to reduce the risk of cancellations. Departures after this hour are on average 22% more likely to be canceled.**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 Luis Munoz Marin Intl. Airport (SJU)?
You can land at any one of these Gaithersburg airports after your direct flight from Luis Munoz Marin Intl. Airport (SJU):

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

Is it cheaper to buy a plane ticket from Luis Munoz Marin Intl. Airport (SJU) to Gaithersburg, MD (GAI-Montgomery County Airpark) last-minute?
Booking your flight from SJU to GAI right before your journey is typically more expensive. However, if you're flexible with your departure dates and times, you could snag a cheap last-minute fare.
Is it cheaper to book a SJU to GAI flight and hotel package?
Opting for a SJU to GAI flight and hotel package is generally cheaper than booking separately. With Expedia, you can enjoy the convenience of organizing your travels in one place. Pick from our extensive range of stays and then add car rentals, flights and activities to your booking. Bundle everything together, and you could save hundreds of dollars.
Can I cancel or change the date of my flight from Luis Munoz Marin Intl. Airport (SJU) to Gaithersburg, MD (GAI-Montgomery County Airpark)?
Typically, you're able to cancel or reschedule your SJU to GAI flight. However, additional charges may apply, especially if you booked more than 24 hours ago. Double-check your itinerary for the airline's fees and policies on flight changes, or if you want more information, go to our Customer Service portal.

Travel information

Origin airport
Luis Munoz Marin Intl.
Destination airport
Montgomery County Airpark
Distance
1580 mi

Book with confidence

San Juan to Gaithersburg Flights

The cheapest times to fly from San Juan 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 Juan to Gaithersburg are during the month of . You can find some of the cheapest flights from San Juan to Gaithersburg with Expedia's search tool and vast selection of airlines.

 

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

Sunday is one of the best days to book for cheap flights from San Juan 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 Juan 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 Juan 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 Juan 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 Juan 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 Juan to Gaithersburg Flights

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*Available to One Key members.