Cheap Flights from Harrisburg (HAR) to Gaithersburg (GAI)

Popular airlines from Harrisburg, PA (HAR-Capital City) 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. Cheapest option available. Average driving time to city center is 38 minutes. Flights from $204
DCA
Ronald Reagan Washington National
Cheapest
Average driving time to city center38 min
Flights from $204
Select flight to Baltimore Washington Intl. Thurgood Marshall BWI. Average driving time to city center is 46 minutes. Flights from $532
BWI
Baltimore Washington Intl. Thurgood Marshall
Average driving time to city center46 min
Flights from $532
Select flight to Washington Dulles Intl. IAD. Average driving time to city center is 41 minutes. Flights from $244
IAD
Washington Dulles Intl.
Average driving time to city center41 min
Flights from $244

Frequently asked questions

How much does a flight from Harrisburg, PA (HAR-Capital City) to Gaithersburg, MD (GAI-Montgomery County Airpark) cost?
Get a cheap one-way flight or cheap return flight from Harrisburg, PA (HAR-Capital City) 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 Harrisburg, PA (HAR-Capital City) to Gaithersburg, MD (GAI-Montgomery County Airpark)?
is the least expensive month to fly from HAR to GAI. Timing your trip outside of the busy season is often the key to better flight prices.
What is the cheapest airline that flies from Harrisburg, PA (HAR-Capital City) to Gaithersburg, MD (GAI-Montgomery County Airpark)?
To find the cheapest airline flying from HAR to GAI, use Expedia's filter tool. Tailor your search based on your travel needs, such as preferred carriers and number of stops. You can then sort your results by "Price (lowest to highest)" to see the cheapest fares upfront.
How many flights per day from Harrisburg, PA (HAR-Capital City) to Gaithersburg, MD (GAI-Montgomery County Airpark)?
There aren't any daily direct flights from Harrisburg, PA (HAR-Capital City) to Gaithersburg, MD (GAI-Montgomery County Airpark). But you can book flights with layovers. Filter your search results on Expedia to include one or two stops, and you'll be cruising above the clouds before you know it.
What day of the week has the most flights from HAR to GAI?
Friday is usually the busiest day for flights, while Tuesday is often the quietest.* Keep in mind that flight schedules can change depending on various factors, including the airline and season.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from Harrisburg, PA (HAR-Capital City) to Gaithersburg, MD (GAI-Montgomery County Airpark)?
To reach Gaithersburg, MD (GAI-Montgomery County Airpark) on time, choose a flight that takes off from Harrisburg, PA (HAR-Capital City) before 3 PM. The chance of cancellations is 22% higher, on average, for departures after this time.**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.
Is it cheaper to buy a plane ticket from Harrisburg, PA (HAR-Capital City) to Gaithersburg, MD (GAI-Montgomery County Airpark) last-minute?
Last-minute fares from HAR to GAI are typically more expensive. To secure the best prices, start looking for flights early. That being said, if you're flexible with your travel dates, you may score a cheap ticket right before your journey.
Is it cheaper to book a HAR to GAI flight and hotel package?
Opting for a HAR to GAI flight and hotel package is usually cheaper than booking separately. With Expedia, you can enjoy the convenience of organizing your travels all in one place. Select from our extensive range of stays and then add activities, car rentals and flights to your booking. Bundle it all together, and you could save hundreds of dollars.
Can I cancel or change the date of my flight from Harrisburg, PA (HAR-Capital City) to Gaithersburg, MD (GAI-Montgomery County Airpark)?
If you booked your HAR to GAI flight within the last 24 hours, you may be able to modify or cancel it without fees. Depending on the airline and the type of fare you have, additional charges may apply for changes beyond this timeframe. Airline policies and contact information can be found in your itinerary or confirmation email. Or, go to our Customer Service portal if you want more information.

Travel information

Origin airport
Capital City
Destination airport
Montgomery County Airpark
Distance
74 mi

Book with confidence

Harrisburg to Gaithersburg Flights

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

 

The best time to book a flight from Harrisburg to Gaithersburg

Sunday is one of the best days to book for cheap flights from Harrisburg 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 Harrisburg 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 Harrisburg 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 Harrisburg 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 Harrisburg 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.

 

Harrisburg to Gaithersburg Flights

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*Available to One Key members.