$44 Cheap Flights from Baltimore (BWI) to Denver (DEN)

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Find available prices by choosing your travel dates.

Cheap Flights from Baltimore to Denver (BWI-DEN)

Prices were available within the past 7 days and start at $44 for one-way flights and $98 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Frontier Airlines
Wed, Apr 2 - Wed, Apr 9
BWI
Baltimore
DEN
Denver
$98 Roundtrip, found 6 hours ago
$98
Roundtrip
found 6 hours ago
Select Frontier Airlines flight, departing Wed, Apr 2 from Baltimore to Denver, returning Wed, Apr 9, priced at $98 found 6 hours ago
Frontier Airlines
Wed, Apr 2 - Tue, Apr 8
BWI
Baltimore
DEN
Denver
$104 Roundtrip, just found
$104
Roundtrip
just found
Select Frontier Airlines flight, departing Wed, Apr 2 from Baltimore to Denver, returning Tue, Apr 8, priced at $104 just found
Frontier Airlines
Wed, Apr 9 - Tue, Apr 15
BWI
Baltimore
DEN
Denver
$114 Roundtrip, just found
$114
Roundtrip
just found
Select Frontier Airlines flight, departing Wed, Apr 9 from Baltimore to Denver, returning Tue, Apr 15, priced at $114 just found
Frontier Airlines
Wed, Apr 9 - Wed, Apr 16
BWI
Baltimore
DEN
Denver
$118 Roundtrip, found 1 hour ago
$118
Roundtrip
found 1 hour ago
Select Frontier Airlines flight, departing Wed, Apr 9 from Baltimore to Denver, returning Wed, Apr 16, priced at $118 found 1 hour ago
Frontier Airlines
Wed, Feb 19 - Wed, Feb 26
BWI
Baltimore
DEN
Denver
$119 Roundtrip, just found
$119
Roundtrip
just found
Select Frontier Airlines flight, departing Wed, Feb 19 from Baltimore to Denver, returning Wed, Feb 26, priced at $119 just found
Frontier Airlines
Fri, Mar 28 - Wed, Apr 2
BWI
Baltimore
DEN
Denver
$120 Roundtrip, found 2 hours ago
$120
Roundtrip
found 2 hours ago
Select Frontier Airlines flight, departing Fri, Mar 28 from Baltimore to Denver, returning Wed, Apr 2, priced at $120 found 2 hours ago
United
Wed, Apr 23 - Tue, Apr 29
BWI
Baltimore
DEN
Denver
$217 Roundtrip, just found
$217
Roundtrip
just found
Select United flight, departing Wed, Apr 23 from Baltimore to Denver, returning Tue, Apr 29, priced at $217 just found
American Airlines
Wed, Apr 23 - Tue, Apr 29
BWI
Baltimore
DEN
Denver
$237 Roundtrip, just found
$237
Roundtrip
just found
Select American Airlines flight, departing Wed, Apr 23 from Baltimore to Denver, returning Tue, Apr 29, priced at $237 just found
Delta
Wed, Apr 23 - Tue, Apr 29
BWI
Baltimore
DEN
Denver
$237 Roundtrip, just found
$237
Roundtrip
just found
Select Delta flight, departing Wed, Apr 23 from Baltimore to Denver, returning Tue, Apr 29, priced at $237 just found
Sun Country Airlines
Thu, Aug 7 - Sat, Aug 9
BWI
Baltimore
DEN
Denver
$307 Roundtrip, found 9 hours ago
$307
Roundtrip
found 9 hours ago
Select Sun Country Airlines flight, departing Thu, Aug 7 from Baltimore to Denver, returning Sat, Aug 9, priced at $307 found 9 hours ago
Flights from Baltimore (BWI) to Denver (DEN)
Origin airport
Baltimore Washington Intl. Thurgood Marshall
Destination airport
Denver Intl.
Airlines serving
Alaska Airlines, American Airlines, Delta, Frontier Airlines, Sun Country Airlines, United
Roundtrip price
$98
Distance
1487 mi

Baltimore to Denver Flights

The cheapest times to fly from Baltimore to Denver

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

The best time to book a flight from Baltimore to Denver

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

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 Denver in 2025. You can also book with separate airlines for your outbound and return journeys, from $44 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 Denver 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 Denver 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 long does it take to fly from BWI Marshall to DIA airport?
Book your trip with United Airlines and you can expect to be airborne for around 4 hours and 6 minutes. This top airline has a direct flight that takes off at 4:14PM from BWI Airport and gets to DIA airport at 6:20PM. Expedia has some incredible flight deals, so take a peek at what’s on offer on this route today.
Is it cheaper to buy a plane ticket from BWI Marshall to Denver Intl. Airport (DEN) last minute?
When it’s time to book your flights, being organized pays off. While it’s possible to score a last-minute deal on a BWI to DEN flight, tickets usually don’t get cheaper as the departure date nears. Based on flight pricing and demand studies in 2022, we have found that the sweet spot to book a domestic flight is between 28 – 35 days ahead. For international flights it’s three to four months.
What airports do you fly into for Denver from Baltimore?
Denver Intl. Airport (DEN), Centennial Airport (APA) and Broomfield, CO (BJC-Rocky Mountain Metropolitan) are your options when flying from Baltimore to Denver. Around 19 mi east of central Denver, Denver Intl. Airport (DEN) is the city’s major gateway. Keep in mind factors such as flight departure and arrival times and the distance to your hotel before deciding where you fly into. Empower Field at Mile High and Coors Field are two excellent attractions to explore when you arrive.
What are the most popular departure times for flights from Baltimore Washington Intl. Thurgood Marshall Airport (BWI) to DEN?
For United Airlines flights heading from BWI Marshall to Denver Airport, the peak period is between 8:00 AM - 9:00 AM. If you want to avoid any delays, head out in the morning. This way you’re likely to escape the heavy air traffic that builds up in the skyways as the day goes by.
Can I change the date of my flight from BWI Airport to Denver Airport?
Easily make changes to your BWI Marshall to Denver Intl. Airport (DEN) ticket via the Expedia Trips portal. But before amending dates or times, look over the fare rules in your itinerary to learn what the carrier will allow you to do and whether fees apply. Some carriers charge a change fee per person, plus any difference in prices. But if you booked in the last 24 hours, you may be able to cancel for free and book new flights. You can also stop by our Customer Service portal for further details and to connect with our Virtual Agent.
Denver nearby Airports

Fort Collins

Baltimore to Fort Collins-Loveland Municipal
$362.12
*Available to One Key members.