Cheap Flights from Knoxville (TYS) to Gaithersburg (GAI)

Popular airlines from McGhee Tyson Airport (TYS) 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 $434
DCA
Ronald Reagan Washington National
Average driving time to city center38 min
Flights from $434
Select flight to Baltimore Washington Intl. Thurgood Marshall BWI. Average driving time to city center is 46 minutes. Flights from $418
BWI
Baltimore Washington Intl. Thurgood Marshall
Average driving time to city center46 min
Flights from $418
Select flight to Washington Dulles Intl. IAD. Cheapest option available. Average driving time to city center is 41 minutes. Flights from $374
IAD
Washington Dulles Intl.
Cheapest
Average driving time to city center41 min
Flights from $374
Flights from Knoxville (TYS) to Gaithersburg (GAI)
Origin airport
McGhee Tyson
Destination airport
Montgomery County Airpark
Distance
440 mi

Knoxville to Gaithersburg Flights

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

 

The best time to book a flight from Knoxville to Gaithersburg

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

 

Frequently asked questions

How much does a flight from McGhee Tyson Airport (TYS) to Gaithersburg, MD (GAI-Montgomery County Airpark) cost?
Snag a cheap one-way flight or cheap return flight from McGhee Tyson Airport (TYS) to Gaithersburg, MD (GAI-Montgomery County Airpark) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to see our cheapest flight offers on this route.
What is the cheapest month to fly from McGhee Tyson Airport (TYS) to Gaithersburg, MD (GAI-Montgomery County Airpark)?
Planning your getaway for is a good way to save, as it's the cheapest month for flights between TYS and GAI. You'll usually find the lowest prices during the off-season.
What is the cheapest airline that flies from McGhee Tyson Airport (TYS) to Gaithersburg, MD (GAI-Montgomery County Airpark)?
Expedia's filter tool lets you easily compare different airlines, flight durations and fares all in one place. Tailor the search to your trip, then sort by "Price (lowest to highest)" to see which carrier offers the cheapest TYS to GAI flight.
How many flights per day from McGhee Tyson Airport (TYS) to Gaithersburg, MD (GAI-Montgomery County Airpark)?
There aren't any daily direct flights from McGhee Tyson Airport (TYS) to Gaithersburg, MD (GAI-Montgomery County Airpark). But you can opt for flights with layovers. Filter your search 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 TYS to GAI?
Typically you'll find the most flight options available on a Friday. Tuesdays are often the quietest.* But this can change based on the time of year, carrier and other factors.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from McGhee Tyson Airport (TYS) to Gaithersburg, MD (GAI-Montgomery County Airpark)?
To touch down at Gaithersburg, MD (GAI-Montgomery County Airpark) on schedule, choose a flight that leaves from McGhee Tyson Airport (TYS) before 3 PM. The chance of cancellations is 22% higher, on average, for departures after this hour.**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 McGhee Tyson Airport (TYS)?
If you're catching a direct flight from McGhee Tyson Airport (TYS) to Gaithersburg, you'll land at either Ronald Reagan Washington National Airport (DCA) or Washington Dulles Intl. Airport (IAD).
Is it cheaper to buy a plane ticket from McGhee Tyson Airport (TYS) to Gaithersburg, MD (GAI-Montgomery County Airpark) last-minute?
Last-minute bookings from TYS to GAI are typically more expensive. For the best rates, start looking for flights ahead of time. That being said, if your travel plans are flexible, it's possible to find a cheap fare just before your departure.
Is it cheaper to book a TYS to GAI flight and hotel package?
Compared with arranging hotels and flights separately, booking a TYS to GAI flight and hotel package with Expedia could result in significant savings. Better yet, having it all in one place takes the hassle out of planning your trip. Just pick your flights and choose from our extensive range of hotels, then personalize your trip with other add-ons like car rentals and activities.
Can I cancel or change the date of my flight from McGhee Tyson Airport (TYS) to Gaithersburg, MD (GAI-Montgomery County Airpark)?
It's usually possible to reschedule or cancel your TYS to GAI flight. However, for bookings made more than 24 hours ago, additional charges may apply. Refer to your airline's policies in your itinerary to see what changes are possible and if any costs are involved. You'll also find more information on our Customer Service portal.

Explore a world of travel with Expedia

*Available to One Key members.