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

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

  • 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 OneKeyCash
    Learn about One Key

The Annual Vacation Sale

Members save up to 40% on hotels and homes. Plan this year’s big trip and save.
Book now

Frequently asked questions

How much does a flight from Boulder, CO (WBU-Boulder Municipal) to Baltimore Washington Intl. Thurgood Marshall Airport (BWI) cost?
Snag a cheap one-way flight or cheap return flight from Boulder, CO (WBU-Boulder Municipal) to Baltimore Washington Intl. Thurgood Marshall Airport (BWI) 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 Boulder, CO (WBU-Boulder Municipal) to Baltimore Washington Intl. Thurgood Marshall Airport (BWI)?
Traveling in can help you save, as it's the cheapest month for flights between WBU and BWI. You'll usually find the lowest prices during the off-season.
Which airlines fly direct from Boulder, CO (WBU-Boulder Municipal) to Baltimore Washington Intl. Thurgood Marshall Airport (BWI)?
You can't fly direct to Baltimore Washington Intl. Thurgood Marshall Airport (BWI) from Boulder, CO (WBU-Boulder Municipal). However, you can arrive in Baltimore without any layovers by leaving from Denver Intl. Airport (DEN).
What is the cheapest airline that flies from Boulder, CO (WBU-Boulder Municipal) to Baltimore Washington Intl. Thurgood Marshall Airport (BWI)?
Expedia's filter tool lets you easily compare different airlines, departure times and fares all in one place. Tailor the search to your trip, then sort by "Price (lowest to highest)" to see which carrier offers the cheapest WBU to BWI flight.
How many flights per day from Boulder, CO (WBU-Boulder Municipal) to Baltimore Washington Intl. Thurgood Marshall Airport (BWI)?
Direct flights from Boulder, CO (WBU-Boulder Municipal) to Baltimore Washington Intl. Thurgood Marshall Airport (BWI) 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 dates and select either "1 Stop" or "2+ Stops."
What day of the week has the most flights from WBU to BWI?
Typically you'll find the most flight options available on a Friday. Tuesdays are often the quietest.* However, this can vary depending on the airline, season 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 Boulder, CO (WBU-Boulder Municipal) to Baltimore Washington Intl. Thurgood Marshall Airport (BWI)?
To avoid potential delays on the Boulder, CO (WBU-Boulder Municipal) to Baltimore Washington Intl. Thurgood Marshall Airport (BWI) route, aim to travel before 3 PM. Flights after this time have a 22% higher chance of cancellation.**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 Boulder, CO (WBU-Boulder Municipal) to Baltimore Washington Intl. Thurgood Marshall Airport (BWI) last-minute?
Last-minute bookings from WBU to BWI are usually more expensive. To lock in the best rates, start searching for flights well ahead of time. That said, if you can play around with your travel dates, you may score a cheap ticket right before you leave.
Is it cheaper to book a WBU to BWI flight and hotel package?
You'll generally save money by securing a WBU to BWI flight and hotel package compared to booking separately. In fact, you could save hundreds of dollars by bundling with Expedia. And it's easy to manage it all in one convenient place. Once you've chosen your preferred accommodations and flights, you can add extras such as activities, car rentals and tours.
Can I cancel or change the date of my flight from Boulder, CO (WBU-Boulder Municipal) to Baltimore Washington Intl. Thurgood Marshall Airport (BWI)?
If you reserved your WBU to BWI flight within the last 24 hours, you may be able to cancel or modify it without fees. Depending on the airline and the type of fare you purchased, additional charges may apply for changes beyond this timeframe. Airline policies and contact information can be found in your itinerary or confirmation email. Or, visit our Customer Service portal for more details.

Travel information

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

Book with confidence

Boulder to Baltimore Flights

The cheapest times to fly from Boulder to Baltimore

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

 

The best time to book a flight from Boulder to Baltimore

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

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 Boulder to Baltimore in 2026. 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 Boulder to Baltimore 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 Boulder to Baltimore 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.

 

Boulder to Baltimore Flights

*Flight schedules are subject to change.

Explore a world of travel with Expedia

*Available to One Key members.