Cheap Flights from Washington (DCA) to Cambridge (CBG)

Popular airlines from Ronald Reagan Washington National Airport (DCA) to Cambridge (CBG)

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Flights from Washington (DCA) to Cambridge (CBG)
Origin airport
Ronald Reagan Washington National
Destination airport
Cambridge
Distance
3664 mi

Washington to Cambridge Flights

The cheapest times to fly from Washington to Cambridge

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 Washington to Cambridge are during the month of . You can find some of the cheapest flights from Washington to Cambridge with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Washington to Cambridge

Sunday is one of the best days to book for cheap flights from Washington to Cambridge: 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 Washington to Cambridge

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 Washington to Cambridge 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 Washington to Cambridge 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 Washington to Cambridge 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 Ronald Reagan Washington National Airport (DCA) to Cambridge (CBG) cost?
Snag a cheap one-way flight or cheap return flight from Ronald Reagan Washington National Airport (DCA) to Cambridge (CBG) 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 Ronald Reagan Washington National Airport (DCA) to Cambridge (CBG)?
Planning your trip for is a great way to save, as it's the cheapest month for flights between DCA and CBG. You'll typically find the lowest prices during off-peak months.
What is the cheapest airline that flies from Ronald Reagan Washington National Airport (DCA) to Cambridge (CBG)?
Expedia's filter tool lets you easily compare different airlines, departure times and fares all in one place. Select your preferences, then sort by "Price (lowest to highest)" to find out which carrier offers the cheapest DCA to CBG flight.
How many flights per day from Ronald Reagan Washington National Airport (DCA) to Cambridge (CBG)?
You'll have to catch a flight with a layover when traveling from Ronald Reagan Washington National Airport (DCA) to Cambridge (CBG). There are no daily direct flights on this route. However, simply filter your search to include one or two stops to find an option that works for you.
What day of the week has the most flights from DCA to CBG?
Usually you'll find the largest variety of flight choices on a Friday. Tuesdays are often the quietest.* But this can vary 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 Ronald Reagan Washington National Airport (DCA) to Cambridge (CBG)?
To avoid potential delays on the Ronald Reagan Washington National Airport (DCA) to Cambridge (CBG) route, aim to travel before 3 PM. Later flights are 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.
Is it cheaper to buy a plane ticket from Ronald Reagan Washington National Airport (DCA) to Cambridge (CBG) last-minute?
Booking your ticket from DCA to CBG shortly before your journey is generally more expensive. However, if you're flexible with your departure times and dates, you could grab a cheap last-minute fare.
Can I cancel or change the date of my flight from Ronald Reagan Washington National Airport (DCA) to Cambridge (CBG)?
If you reserved your DCA to CBG flight in the last 24 hours, you may be able to modify or cancel it without any fees. Depending on the airline and the type of ticket 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 for more details.

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*Available to One Key members.