Cheap Flights from Chicago (ORD) to Gaithersburg (GAI)

Popular airlines from Chicago O'Hare Intl. Airport (ORD) 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 $382
DCA
Ronald Reagan Washington National
Average driving time to city center38 min
Flights from $382
Select flight to Baltimore Washington Intl. Thurgood Marshall BWI. Cheapest option available. Average driving time to city center is 46 minutes. Flights from $183
BWI
Baltimore Washington Intl. Thurgood Marshall
Cheapest
Average driving time to city center46 min
Flights from $183
Select flight to Washington Dulles Intl. IAD. Average driving time to city center is 41 minutes. Flights from $386
IAD
Washington Dulles Intl.
Average driving time to city center41 min
Flights from $386

Frequently asked questions

How much does a flight from O'Hare Intl. Airport (ORD) to Gaithersburg, MD (GAI-Montgomery County Airpark) cost?
Get a cheap one-way flight or cheap return flight from O'Hare Intl. Airport (ORD) 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 O'Hare Intl. Airport (ORD) to Gaithersburg, MD (GAI-Montgomery County Airpark)?
Planning your getaway for may help you find better deals, as it's the cheapest month for flights between ORD and GAI. You'll usually find the lowest fares during off-peak months.
What is the cheapest airline that flies from O'Hare Intl. Airport (ORD) to Gaithersburg, MD (GAI-Montgomery County Airpark)?
Use the filter tool on Expedia to compare different airlines and find the most affordable carrier that'll fly you from ORD to GAI. Then, sort your results by "Price (lowest to highest)" to pick up a great deal.
How many flights per day from O'Hare Intl. Airport (ORD) to Gaithersburg, MD (GAI-Montgomery County Airpark)?
Direct flights from O'Hare Intl. Airport (ORD) to Gaithersburg, MD (GAI-Montgomery County Airpark) aren't available daily, so you'll need to take a flight with a layover. Explore your options with Expedia's filter tool. Enter your travel details and choose either "1 Stop" or "2+ Stops."
What day of the week has the most flights from ORD to GAI?
Friday is typically the busiest day for flights, while Tuesday tends to be the quietest.* Keep in mind that flight schedules can vary depending on various factors, such as the season and airline.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from O'Hare Intl. Airport (ORD) to Gaithersburg, MD (GAI-Montgomery County Airpark)?
Opt for a flight from O'Hare Intl. Airport (ORD) to Gaithersburg, MD (GAI-Montgomery County Airpark) that takes off before 3 PM to reduce the risk of cancellations. Later departures have a 22% higher chance of being canceled, on average.**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 O'Hare Intl. Airport (ORD)?
Catch a direct flight from O'Hare Intl. Airport (ORD) to Gaithersburg and arrive at one of these hubs:

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

Is it cheaper to buy a plane ticket from O'Hare Intl. Airport (ORD) to Gaithersburg, MD (GAI-Montgomery County Airpark) last-minute?
Booking your ticket from ORD to GAI shortly before your journey is usually more expensive. However, if there's some wiggle room with your travel times and dates, you could snag a cheap last-minute fare.
Is it cheaper to book an ORD to GAI flight and hotel package?
Opting for an ORD to GAI flight and hotel package tends to be cheaper than booking separately. With Expedia, you can enjoy the convenience of organizing your travels all in one place. Choose from our impressive range of stays and then add flights, car rentals 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 O'Hare Intl. Airport (ORD) to Gaithersburg, MD (GAI-Montgomery County Airpark)?
In most cases, you can cancel or reschedule your ORD to GAI flight. However, there may be additional charges, especially if you booked over 24 hours ago. Double-check your itinerary for the airline's fees and guidelines on flight changes, or if you want further details, head to our Customer Service portal.

Travel information

Origin airport
O'Hare Intl.
Destination airport
Montgomery County Airpark
Distance
595 mi

Book with confidence

Chicago to Gaithersburg Flights

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

 

The best time to book a flight from Chicago to Gaithersburg

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

 

Chicago to Gaithersburg Flights

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*Available to One Key members.