Cheap Flights from Baltimore (BWI) to Boulder (WBU)

Popular airlines from Baltimore Washington Intl. Airport (BWI) to Boulder, CO (WBU-Boulder Municipal)

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Flights from Baltimore (BWI) to Boulder (WBU)
Origin airport
Baltimore Washington Intl. Thurgood Marshall
Destination airport
Boulder Municipal
Distance
1514 mi

Baltimore to Boulder Flights

The cheapest times to fly from Baltimore to Boulder

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

 

The best time to book a flight from Baltimore to Boulder

Sunday is one of the best days to book for cheap flights from Baltimore to Boulder: 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 Baltimore to Boulder

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 Baltimore to Boulder 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 Baltimore to Boulder 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 Baltimore to Boulder 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

Is it cheaper to buy a plane ticket from BWI Marshall to WBU last minute?
When it’s time to book your flights, it’s better to be prepared. While you could find a deal on a Baltimore Washington Intl. Thurgood Marshall Airport (BWI) to WBU flight at the last minute, prices usually don’t get cheaper as the date of departure nears. Based on flight pricing and demand studies in 2022, we have found that the sweet spot to lock in a domestic flight is between 28 – 35 days in advance. For international flights it’s three to four months.
What airports do you fly into for Boulder from Baltimore?
From Baltimore, you can connect to Boulder through Boulder, CO (WBU-Boulder Municipal), Denver Intl. Airport (DEN) and Broomfield, CO (BJC-Rocky Mountain Metropolitan). Find out which airport is more convenient for you before you make a decision. If you pick Boulder, CO (WBU-Boulder Municipal), it’s around 3 mi northeast of downtown. Use the dollars you save when booking your trip with Expedia to visit the city’s well-known sights, such as University of Colorado Boulder and Folsom Field.
Can I change the date of my flight from BWI Airport to WBU?
Plans can get upended, so Expedia is here to help make amending your trip as easy as possible. First, access your BWI Airport to WBU itinerary through the Expedia Trips portal and look up the fare rules and restrictions to see if you can make changes. If you purchased your fare in the last 24 hours, some airlines allow you to cancel at no cost and organize new flights. If you booked your fare more than 24 hours ago, connect with us through our Customer Service portal so we can assist you further.

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