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

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

Frequently asked questions

How much does a flight from Baltimore Washington Intl. Thurgood Marshall Airport (BWI) to Boulder, CO (WBU-Boulder Municipal) cost?
Snag a cheap one-way flight or cheap return flight from Baltimore Washington Intl. Thurgood Marshall Airport (BWI) to Boulder, CO (WBU-Boulder Municipal) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to see our cheapest flight deals on this route.
What is the cheapest month to fly from Baltimore Washington Intl. Thurgood Marshall Airport (BWI) to Boulder, CO (WBU-Boulder Municipal)?
Flying in is a great way to save, as it's the cheapest month for flights between BWI and WBU. You'll usually find the lowest fares during off-peak months.
What is the cheapest airline that flies from Baltimore Washington Intl. Thurgood Marshall Airport (BWI) to Boulder, CO (WBU-Boulder Municipal)?
To find the cheapest airline flying from BWI to WBU, use Expedia's filter tool. Tailor your search based on your travel style, such as preferred carriers and flight duration. You can then sort your results by "Price (lowest to highest)" to see the cheapest flights first.
How many flights per day from Baltimore Washington Intl. Thurgood Marshall Airport (BWI) to Boulder, CO (WBU-Boulder Municipal)?
You'll have to take a flight with a layover when traveling from Baltimore Washington Intl. Thurgood Marshall Airport (BWI) to Boulder, CO (WBU-Boulder Municipal). Direct flights don't operate daily on this route. However, simply filter your search to include one or more stops to discover an option that works for you.
What day of the week has the most flights from BWI to WBU?
Friday is typically the busiest day for flights, while Tuesday is often the quietest.* Keep in mind that flight schedules can vary based on various factors, such as the time of year 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 Baltimore Washington Intl. Thurgood Marshall Airport (BWI) to Boulder, CO (WBU-Boulder Municipal)?
Opt for a flight from Baltimore Washington Intl. Thurgood Marshall Airport (BWI) to Boulder, CO (WBU-Boulder Municipal) that takes off before 3 PM to reduce the risk of delays and cancellations. Later departures are on average 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.
What airports do you fly into for Boulder from Baltimore Washington Intl. Thurgood Marshall Airport (BWI)?
If you're flying on a direct flight from Baltimore Washington Intl. Thurgood Marshall Airport (BWI) to Boulder, Denver Intl. Airport (DEN) is the only airport you can land at.
Is it cheaper to buy a plane ticket from Baltimore Washington Intl. Thurgood Marshall Airport (BWI) to Boulder, CO (WBU-Boulder Municipal) last-minute?
Holding off until right before your break to book a ticket from BWI to WBU often results in higher prices. While you may come across some last-minute deals, there's no guarantee. Be flexible with your travel plans to boost your chances of scoring a bargain.
Is it cheaper to book a BWI to WBU flight and hotel package?
Booking a BWI to WBU flight and hotel package tends to be cheaper than booking separately. With Expedia, you can enjoy the convenience of organizing your trip in one place. Select from our impressive range of hotels and then add activities, car rentals and flights to your booking. Bundle everything together, and you could save hundreds of dollars.
Can I cancel or change the date of my flight from Baltimore Washington Intl. Thurgood Marshall Airport (BWI) to Boulder, CO (WBU-Boulder Municipal)?
Typically, it's possible to reschedule or cancel your BWI to WBU flight. However, for bookings made more than 24 hours ago, additional charges may apply. Check your airline's policies in your itinerary to see what changes are allowed and if any costs are involved. You'll also find more information on our Customer Service portal.

Travel information

Origin airport
Baltimore Washington Intl. Thurgood Marshall
Destination airport
Boulder Municipal
Distance
1514 mi

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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.

 

Baltimore to Boulder Flights

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*Available to One Key members.