A red brick train station with a sign reading "Gaithersburg" and a steam locomotive in the background.

RM404 Cheap Flights to Gaithersburg

View RM404 flight on Tue, 15 Sept 2026Opens in a new window

Popular airlines to Gaithersburg

  • Be in the know

    Get alerts if flight prices drop or rise*

  • Book smarter

    Save up to 30% on select hotels after you book a flight*

  • Earn twice

    Earn your airline miles on top of our rewards
    Sign in

Cheap round-trip flights to Gaithersburg

These prices were available within the past 7 days. Prices quoted are per person, return, for the period specified. Prices and availability are subject to change. Additional terms apply.

Delta
American Airlines
United
Qatar Airways
Oman Air

Frequently asked questions

What is the name of Gaithersburg's airport?
Gaithersburg is served by several airports, but most visitors choose to touch down at Ronald Reagan Washington National Airport (DCA).
How far is Ronald Reagan Washington National Airport (DCA) from central Gaithersburg?
Long commutes don't have to be stressful if you work out your strategy ahead of time. Downtown Gaithersburg is 32 kilometres from DCA, so it's smart to know how to get to the city before you touchdown.
What airport is best to fly into Gaithersburg?
With a few airports in one place, travellers have lots of options when booking a flight to Gaithersburg. If you arrive at National Airport, you'll be 32 kilometres from the downtown area. There's also Washington Dulles Intl. Airport (IAD) (31 kilometres away) and BWI Marshall (48 kilometres away).
How many airlines fly to Gaithersburg?
There are a total of 48 airlines connecting Gaithersburg to 175 airports from all over the globe.
Which airlines fly to Gaithersburg?
In general, travellers opt to fly with Delta, American Airlines and Southwest Airlines when heading off to Gaithersburg. The biggest proportion of these flights depart from Atlanta, with Delta flying this route the most.
How many nonstop flights are there to Gaithersburg?
Planning an exciting Gaithersburg adventure is a cinch when there are 6,526 direct flights every week to select from.
Where are the most popular flights to Gaithersburg departing from?
Travellers often set off from Atlanta, Boston and Chicago airports when heading to Gaithersburg.
How long is the flight to Gaithersburg Airport?
If it's Atlanta you're departing, you'll be midair for around 1 hour and 45 minutes before you arrive in Gaithersburg. Runway to runway from Boston generally takes 1 hour and 46 minutes and from Chicago, the average flight time is 1 hour and 53 minutes.
How to book the cheapest flight to Gaithersburg?
We've all come across those jet-setters who somehow manage to land super cheap airfares wherever they go. Would you like to know how to do it for your Gaithersburg holiday? Don't leave it until the last possible moment to secure your flight. Another fantastic way to pick up the best deal is to research all options. If where you're headed has several airports, be sure to research the cost of flying into a smaller terminal. Finally, another simple way to save a few dollars is be ready to book fast. If you see a fantastic deal, don't hesitate — grab it while you've got the chance.
Do you have any tips for my flight to Gaithersburg?
We've rounded up all the info you need to make your journey a pleasant experience. Follow our tips and you'll be breezing through airport security and discovering Gaithersburg before you know it. What to pack in your hand luggage:
  • Air travel can be a pleasure if you bring the right things. First of all you'll need basic toiletries, such as deodorant and a toothbrush, a fresh change of clothes and a few magazines. Next, leave space in your carry-on bag for your mobile phone, a charger, your medications and perhaps a neck pillow too. Lastly, and most importantly, don't forget to take your passport, travel documents and some money.
Do not pack the following items in your hand luggage:
  • While the list of banned items differs between airlines, the general rule to follow is avoid carrying anything flammable, sharp or explosive. This includes things like knives, scissors, fuel and fireworks. Sports equipment like bows and arrows, and items that could harm passengers, such as swords and batons, can't come on board with you either.
What to wear on a flight:
  • Comfort should be your top priority when choosing what to wear during your flight. Loose, breathable clothing is a wise option, as are flat, slip-on shoes.
  • Caused by prolonged periods of inactivity, deep vein thrombosis (DVT) is a blood clot condition that can affect some passengers on long-haul flights. Lower your risks by drinking water, keeping your legs and ankles moving and wearing compression socks or tights.
How to get through airport security fast when flying to Gaithersburg?
The answer is — be prepared. We've put together some helpful hints for a hassle-free trip through security. Look out Gaithersburg, here you come:
  • Airport security personnel first need to verify that you have a valid ID and matching travel documents before anything else. Have them close by, ready for inspection.
  • The X-ray machine comes next. Remove anything metal on you that is likely to set off the alarm. This includes items like headphones or earphones, as well as heavy coats or jackets. They'll all need to go on the X-ray conveyor belt.
  • Your electronic gadgets like laptops and phones will also have to go through the machine for inspection. No need to worry though, you'll be back online before you know it.
  • Can't travel without your favourite hand cream? Not a problem. As long as it's in a container no larger than 3.4 ounces (100 millilitres) and it's stored in a zip-close bag, it's OK to bring with you in your carry-on.
  • Slip-on shoes are a clever footwear choice as you're less likely to be required to remove them when passing through security. Boots and heavier-style shoes are often subjected to extra screening.
  • Avoid taking prohibited items in your carry-on bag. If you have any sharp or pointed objects, pack them in your checked suitcase. They won't be allowed in the cabin.

Book with confidence

Searching for cheap flights to Gaithersburg? No travel company presents more choices than Expedia if you're looking to compare flights to Gaithersburg: more airlines, cheaper flights, and fewer stops. Expedia provides the cheapest flights to Gaithersburg and you may find even greater savings if you combine your Gaithersburg flight with a hotel stay!

Expedia is one of the world's leading full-serviced online travel brands which means that Expedia have access to cheap airline tickets. So make sure you check Expedia regularly for these bargain flights because the cheapest airline ticket deals sell out fast.

Expedia is not only free for everyone to use but it quick and easy to use. Find the lowest flight prices guaranteed and book directly through Expedia. Browse through hundreds of cheap flight offers to find the one that suits your budget by simply inputting your travel dates. Expedia will then find the cheapest flights to Gaithersburg for that period and let you choose your preferred time and airline.

Looking to save even more? Get additional savings by bundling your Gaithersburg flight with a hotel to create a bargain travel package. Early birds can discover terrific savings by booking in advance while last minute travelers can enjoy great last minute deals. When you book flights with Expedia you can rest assured that you have booked the best Gaithersburg flight at the lowest possible price!

Travel information

Destination airport
Washington Dulles Intl.
Destination airport IATA code
IAD
Destination city name
Washington
Roundtrip price
RM808

Trending flights to Gaithersburg

These prices were available within the past 7 days. Prices quoted are per person, return, for the period specified. Prices and availability are subject to change. Additional terms apply.

Qatar Airways
*Available to Expedia members.