DEN - BWI

$129 Find Cheap Flights from Denver to Baltimore

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Denver to Baltimore departing on 10/20. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy, 0 bags

KAYAK searches hundreds of travel sites at once for deals on flights to Baltimore

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Denver to Baltimore, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Denver to Baltimore, as well as popular online travel agencies
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Everything you should know

Cheapest round-trip
$266
Typical prices: $532-$313
Frontier
Tue 6/23Tue 6/30
DEN - BWI • 1 stop
Cheapest non-stop
$335
Typical prices: $476-$289
Southwest
Wed 7/15Tue 7/21
DEN - BWI • Non-stop
Advice from real travelers
AI-powered summary based on content written by travel experts. AI can make mistakes.
Southwest adds Rapid Rewards and free snacks, while Frontier sells a Premium Bundle.
United Economy Plus adds legroom; Frontier offers free check-in by app or kiosk.
Expert advice
Expert advice
Expert advice
Expert advice
Nonstop flights
You can fly direct with Southwest and United Airlines. Average duration is 3h 27m
Direct flights
Direct flights
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Direct flights
Direct flights
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Top layover airports
Cheapest • Avg $180 (round-trip)
Shortest trip • 5h 35m (one-way)
Insights
Insights
Insights
Insights
When to book
in advance
Our data shows that travelers who book at least 4 weeks in advance save around 18% compared to booking last minute.
Insights
Insights
Insights
Insights
When to travel
Cheapest • 28% price drop
Most popular
Good to know
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Start a new search
KAYAK searches 100s of sites at once to find you the best travel deals.
We hope you love your trip to Baltimore!
Flight Deals
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Expert advice
Flight Deals

Cheap Flights from Denver to Baltimore (DEN-BWI)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Denver to Baltimore that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Denver to Baltimore

Tue, Jun 23 - Tue, Jun 30
Frontier Logo
6:30 am - 3:33 pm
DEN
-
BWI
7h 03m
1 stop
Frontier Logo
1:29 pm - 10:16 pm
BWI
-
DEN
10h 47m
1 stop
$266Frontier
Wed, Jun 24 - Fri, Jul 10
Frontier Logo
6:30 am - 4:22 pm
DEN
-
BWI
7h 52m
1 stop
Frontier Logo
7:27 pm - 8:23 am
BWI
-
DEN
14h 56m
1 stop
$267Frontier
Sat, Jul 4 - Thu, Jul 16
Frontier Logo
6:30 am - 4:26 pm
DEN
-
BWI
7h 56m
1 stop
Frontier Logo
6:35 am - 2:00 pm
BWI
-
DEN
9h 25m
1 stop
$268Frontier
Wed, Jul 1 - Fri, Jul 24
Frontier Logo
6:30 am - 4:22 pm
DEN
-
BWI
7h 52m
1 stop
Frontier Logo
11:30 am - 10:29 pm
BWI
-
DEN
12h 59m
1 stop
$269Frontier
Wed, Jul 1 - Tue, Jul 14
Frontier Logo
5:05 am - 3:52 pm
DEN
-
BWI
8h 47m
1 stop
Frontier Logo
5:21 pm - 11:00 pm
BWI
-
DEN
7h 39m
1 stop
$270Frontier
Tue, Sep 8 - Thu, Sep 17
Frontier Logo
6:30 am - 3:33 pm
DEN
-
BWI
7h 03m
1 stop
Frontier Logo
2:46 pm - 8:04 pm
BWI
-
DEN
7h 18m
1 stop
$271Frontier
Sun, Aug 30 - Thu, Sep 3
Frontier Logo
11:59 pm - 9:39 am
DEN
-
BWI
7h 40m
1 stop
Frontier Logo
9:32 pm - 8:58 am
BWI
-
DEN
13h 26m
1 stop
$272Frontier
Thu, Jul 16 - Sun, Jul 19
Frontier Logo
9:58 am - 6:09 pm
DEN
-
BWI
6h 11m
1 stop
Frontier Logo
7:27 pm - 8:23 am
BWI
-
DEN
14h 56m
1 stop
$273Frontier
Wed, Jun 24 - Mon, Jun 29
Frontier Logo
6:30 am - 4:22 pm
DEN
-
BWI
7h 52m
1 stop
Frontier Logo
9:32 pm - 9:03 am
BWI
-
DEN
13h 31m
1 stop
$274Frontier
Wed, Jul 15 - Tue, Jul 21
Frontier Logo
7:41 am - 11:17 pm
DEN
-
BWI
13h 36m
2 stops
Frontier Logo
8:36 am - 10:05 pm
BWI
-
DEN
15h 29m
1 stop
$275Frontier
Booking Insights

KAYAK's insights & trends for Denver to Baltimore flights

Get data-powered insights and trends into flights from Denver to Baltimore to help you find the cheapest flights, the best time to fly and much more.

How much is a round-trip flight from Denver to Baltimore?

This analysis is based on the cheapest round-trip price found on KAYAK in the last 12 months by searching for a flight from Denver to Baltimore departing in June.

What’s the cheapest day of the week to fly from Denver to Baltimore?

The average price of all round-trip flights from Denver to Baltimore clicked on KAYAK for each day over the last 12 months.

If you are looking for a flight deal from Denver to Baltimore, look for departures on Fridays and avoid leaving on a Sunday, as it's usually the priciest day. When flying back from Baltimore, Friday is the cheapest day to fly and Sunday is the most expensive.

What is the cheapest month to fly from Denver to Baltimore?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Denver to Baltimore, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from Denver to Baltimore is September, where tickets cost $260 (return) on average. On the other hand, the most expensive months are December and March, where the average cost of round-trip tickets is $463 and $424 respectively.

Can I save money by flying with a layover from Denver to Baltimore?

The average round-trip price for all non-stop flights, flights with one layover, and flights with two layovers for the route found by users searching on KAYAK in the last 2 weeks.

No, with an average price for the route of $356, prices are generally cheapest when you fly direct.

How far in advance should I book a flight from Denver to Baltimore?

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights from Denver to Baltimore, removes the top 0.1% to account for outliers, and then takes the average of all the values for each week.

To get a below average price on the flight from Denver to Baltimore, you should book around 4 weeks before departure, which saves you about 18% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 25 weeks before departure.

Expert advice

Expert advice for your flight from Denver to Baltimore

 
AI-powered summary based on content written by travel experts. AI can make mistakes.
KAYAK teamed up with top travel experts to share the best tips for your journey.
Our travel experts
Blane Bachelor

Blane Bachelor

Expert on Southwest

Blane Bachelor is a journalist and editor specializing in travel and aviation who writes regularly for top global outlets. Born and raised in Florida, Blane has worked and lived in four countries, including the Netherlands, where she’s currently based with her family. Her favorite way to get to know a new destination is by running or riding a bike around town – or hearing a spooky ghost story about local history. She will always choose the window seat.

Stefanie Waldek

Stefanie Waldek

Expert on Frontier and United Airlines

Stefanie Waldek is a freelance space, travel, and design writer based in Saratoga Springs, NY. Her words have appeared in Space.com, Travel + Leisure, Condé Nast Traveler, Architectural Digest, and House Beautiful, among other publications. An expert in aviation and expedition cruising, Stefanie is frequently up in the air or on the sea, likely en route to Antarctica or the Arctic.

Harriet Baskas

Harriet Baskas

Expert on BWI and DEN

Harriet is an award-winning journalist who is happiest in an airport or an unusual museum. Her stories about airports, air travel, and the business of travel have appeared on NBC News, CNBC, USA TODAY, The Points Guy and other outlets. She is the creator of the StuckatTheAirport.com blog and the author of nine books. When not out on the road or exploring the latest airport amenities, she’s home in Seattle getting ready for the next adventure.

Good to know

Low seasonFebruary
Cheapest flight$129
Best time to beat the crowds with an average 5% drop in price.
Most popular time to fly with an average 13% increase in price.
Flight from Denver to Baltimore

When to book flights from Denver to Baltimore

Are your dates flexible? Find out the best times to travel from Denver to Baltimore based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking flights from Denver to Baltimore

  • Does BWI airport have on-site hotels?

    Yes. BWI hosts three hotels: Hilton Hotel, Holiday Inn and Aloft BWI hotel. The hotels offer business and family facilities. Suppose you are a corporate traveler; consider checking in at one of the hotels. There is also a micro-hotel, Minute Suite, located on the airside.

  • Are there public artworks and historical collections at BWI airport?

    Yes. There are multiple art exhibits and galleries located throughout the airport. You can also visit the BWI Marshall Observation Gallery to view youth art. Near the Observation Gallery, you will find the Thurgood Marshall Tribute, which educates the life of the first African-American Supreme Court judge. Visit the Greek revival-styles Benson-Hammond House on the airport grounds if you are passionate about historical homes.

  • Which lounges are available at DEN airport?

    The airport host several airline lounges where you can relax and refresh ahead of your plane ride. You will find Admirals Club, United Club and Delta Sky Club in A Gates. Visit the Centurion Lounge in B Gates, where you can enjoy the pool, peruse the airport's digital library or catch up on your work.

  • Does DEN airport offer dining facilities and services?

    Yes. There are restaurants where you can have sit-down dining or fast food stores offering grab-and-go services. You can visit Tamales by La Casita in C Gatesif you need dinner, lunch or breakfast dishes. Suppose you need some sweet snacks and quality coffees and teas, pass by Rocky Mountain Café in Jeppesen Terminal.

  • What is the cheapest flight from Denver to Baltimore?

    In the last 5 days, the lowest price for a flight from Denver to Baltimore was $129 for a one-way ticket and $266 for a round-trip.

  • Do I need a passport to fly between Denver and Baltimore?

    A passport is not required to fly from Denver to Baltimore.

  • Which airports will I be using when flying from Denver to Baltimore?

    Denver and Baltimore are both served by 1 main airport. You will leave Denver from Denver Intl and will be arriving at Baltimore/Washington.

  • Which airlines offer Wi-Fi service onboard planes from Denver to Baltimore?

    JetBlue, American Airlines, and Delta offer inflight Wi-Fi service on the Denver to Baltimore flight route.

  • Which aircraft models fly most regularly from Denver to Baltimore?

    The Boeing 737 MAX 8 is the aircraft model that flies most regularly on the Denver to Baltimore flight route.

  • Which airline alliances offer flights from Denver to Baltimore?

    SkyTeam, oneworld, and Star Alliance are the airline alliances operating flights between Denver and Baltimore, with SkyTeam being the most commonly used for this route.

  • On which days can I fly direct from Denver to Baltimore?

    There are nonstop flights from Denver to Baltimore on a daily basis.

  • Which is the best airline for flights from Denver to Baltimore, Southwest or Delta?

    The two airlines most popular with KAYAK users for flights from Denver to Baltimore are Southwest and Delta. With an average price for the route of $427 and an overall rating of 8.0, Southwest is the most popular choice. Delta is also a great choice for the route, with an average price of $366 and an overall rating of 7.8.

  • How does KAYAK find such low prices on flights from Denver to Baltimore?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Denver to Baltimore.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Denver to Baltimore?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Baltimore from Denver is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Denver to Baltimore?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Baltimore with an airline and back to Denver with another airline. Booking your flights between Denver and BWI can sometimes prove cheaper using this method.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Denver to Baltimore?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Baltimore from Denver up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

KAYAK’s top tips for finding a cheap flight from Denver to Baltimore

  • Looking for a cheap flight? 25% of our users found flights on this route for $212 or less one-way and $428 or less round-trip.
  • Denver International Airport (DEN) offers disabled facilities to travelers with physical and hidden disabilities. The airport has designated an accessible car parking space for disabled travelers in all the on-airport parking facilities. There are also wheelchairs accessible through the airlines, lifts and adapted toilets. TTY telephones are available in all the telephone booths in the airport for passengers with hearing impairments.
  • DEN airport has religious facilities that provide prayer and meditation services to its travelers. There is the Islamic masjid, prayer hall and an interfaith chapel on level 6 of Jeppesen Terminal. Catholic masses in the interfaith chapel, including Ash Wednesday, Sunday mass and The Feast of the Immaculate Conception, are offered. These facilities are open daily from 4 AM to midnight.
  • Baltimore Washington International Airport (BWI) offers family-friendly facilities to cater to family travelers. The airport has baby care facilities, including nursing stations near the entrance to C Gates of the Landside. The nursing stations are designated for breastfeeding and diaper changing. There are also family rooms throughout the landside. You can also take your kids to the children's play areas to stretch their muscles and have fun before leaving the airport.
  • BWI airport allows animal travelers and offer pet-friendly facilities. There are two pet relief areas in the airport where you can take your furry friends to hydrate and relieve themselves after a long flight. You will find one of the areas at the end on Airside in Concourse E and another in front of the Hourly Garage of the Landside.
  • BWI airport provides ground transportation facilities to the landing passengers. The Light Rail offers free shuttle services from BWI airport to downtown Baltimore, Hunt Valley and Timonium. Taxi services are also available. You will find metered taxis at the taxi stand outside the Baggage Claim on the lower level of the airport’s terminal.

Prefer to fly direct from Denver to Baltimore?

 
Direct data is based off flight results for the next 60 days. Find direct flights from all airlines flying direct from Denver Intl to Baltimore/Washington.
Find which airlines fly direct from Denver Intl Airport to Baltimore/Washington Airport, which days they fly and book direct flights.

Direct departures

Denver Intl to Baltimore/Washington

Monday

Southwest,United Airlines

Southwest,United Airlines

Tuesday

Southwest,United Airlines

Southwest,United Airlines

Wednesday

Southwest,United Airlines

Southwest,United Airlines

Thursday

Southwest,United Airlines

Southwest,United Airlines

Friday

Southwest,United Airlines

Southwest,United Airlines

Saturday

Southwest,United Airlines

Southwest,United Airlines

Sunday

Southwest,United Airlines

Southwest,United Airlines

See more direct flights

Direct returns

Baltimore/Washington to Denver Intl

Monday

Southwest,United Airlines

Southwest,United Airlines

Tuesday

Southwest,United Airlines

Southwest,United Airlines

Wednesday

Southwest,United Airlines

Southwest,United Airlines

Thursday

Southwest,United Airlines

Southwest,United Airlines

Friday

Southwest,United Airlines

Southwest,United Airlines

Saturday

Southwest,United Airlines

Southwest,United Airlines

Sunday

Southwest,United Airlines

Southwest,United Airlines

See more direct flights

Reviews of the top 5 airlines serving from Denver to Baltimore

 
See real verified KAYAK customer reviews for airlines flying from Denver to Baltimore. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Denver to Baltimore? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
8.0
SouthwestOverall score based on 4255 reviews
8.1Boarding
8.6Crew
7.0Food
8.0Comfort
7.5Entertainment
Airline reviews

Flight coming out of Buffalo was delayed, so we had to be rescheduled on another flight from Baltimore to Phoenix which means we had a long layover and got home 3.5 hours late. Shuttle to parking stopped at 10pm, so we had to pay for an Uber to the parking lot and got charged an extra day of parking since it was after midnight. Not the best experience. Long day!

2.0 MediocreDawn, Jun 2026
BUF - BWI
Read more Southwest reviews

Flight coming out of Buffalo was delayed, so we had to be rescheduled on another flight from Baltimore to Phoenix which means we had a long layover and got home 3.5 hours late. Shuttle to parking stopped at 10pm, so we had to pay for an Uber to the parking lot and got charged an extra day of parking since it was after midnight. Not the best experience. Long day!

This leg was much better, but we did have to have a 3 hour lay o er after coming from a very exhausting hiccup with our flight from BNA to Den

Terrible all around. Left prior review detailing massive delay/cancellation to then rebook travel. Topping on the cake was lost luggage even after travel to ultimate destination was secured on a new plane(s).

I am very please with the service received from Southwest. Although there was a refuel stop in Fl before we got the Baltimore. The service and kindness of the staff was excellent.

Southwest continues to do less for more money. Flight attendants used to be fun and friendly. But now it’s like they don’t even see you. Such a shame.

I liked it better when you were truer to your roots Am paying more for less fun

We had a 5 hour delay on the tarmac in Baltimore

Long layover between flights to Long Island from BWI - need better coordination between flights

The last 3 flights between BWI and BDL canceled the beverage service mid- way. Just say up front that the fight is too short. Thanks!

My flight from Denver to Minneapolis was excellent. My flight from Minneapolis to Denver was one of the worst I flights I have ever experienced. I had a window seat, the gentleman in the middle seat was morbidly obese and SW should have made him purchase two seats. His elbow dug into my arm most of the way even after I asked to please be careful. I was literally squashed between the him and the window with no wiggle room. The plane was full so it was not possible to ask for a different seat. I realize I should have complained to the flight attendant but I didn't feel anything could be done to rectify the situation. I fly SW often, I will continue to do so as this was my first negative experience.

Connection flights should be spaced out farther because too close I missed my connection.

Definitely a southern flavor. Cordiality was evident even though no drinks or snacks were served.

On time! There were plenty of airport employees who were able to keep us moving in the right direction. The crew on the plane were professional.

Left /arrived on time. Decent seat space. Like the wifi/plugs and entertainment. Windows and tray table were kinda gross. Attendants didn't start snack service til 40mins before landing. Two rows before us, captain came on to say there's turbulence and recalled staff to seats. So, no drink/snack. Later, attendants didn't stop to see if we had trash nor even look our way. Felt invisible! Almost all pilot announcements were not only unintelligible, but so quiet. We had no idea what she said.

Average seat comfort, a drink and chips were provided, early boarding because we checked a carryon at the gate was nice. Ticket pricing shenanigans, including fees to pick a seat, check a bag, and get food onboard - evidence the industry is reinvigorating last century’s strategies- destroys the experience before one ever arrives at the airport. It’s difficult to recognize any value or sustain loyalty in the end-to-end process making air travel more drudgery than pleasure.

Gate agent was unhelpful for handicapped boarding. Flight attendant seemed untrained.

No service flight that took 5 hrs and a stop at an unscheduled airport. Crew and pilots did their jobs

Clean planes and not take my comfort class seat away.

Weather caused a long delay, but the efficiency and updates from the pilot were helpful. We were able to make our connection fortunately.

Planes were clean, no water or snacks on either flight.

New plane was lovely. Crew customer service is always lax but expected. Kraft on time and arrived safely.

It was a short flight so I was expecting too much

Had a one hour delay due to mechanical issue. I didn’t think I’d be able to make my connecting flight, but they waited for me and greeted me when I arrived to help things run smooth.

O’hsre taxi and deboarding took 40 minutes. Needed 20 minutes extra time between connecting flights to avoid running through terminal.

Was great in general, try to respect time and excuses when slight changes have been made, appreciated!

Really hard landing... as in slammed into the runway then hit the brakes really hard ...

Every staff member was professional, friendly and courteous. The pizza twist was ok. It was warm but too much dough.

Wonderful in-seat entertainment with seatback screens and huge selection of quality movies. The ability to bluetooth connect headphones was amazing.

Flight left on time and we arrived 25 minutes early! There was a gate available when we arrived so early on a busy Sunday afternoon! Flight attendants came around twice with the drinks cart.

Not being stranded in Chicago for her airport to 11:30 tomorrow morning the 3rd

Our flight was repeatedly delayed for maintenance problems: scheduled for 9.30am, eventually delayed to 7pm! Very very inconvenient! AA should have provided a substitute plane much earlier.. On the other hand, Customer Service crew in Charlotte helped us to reach NY (LGA) by late afternoon. Thank you Patricia!! The actual flight was quick and very comfortable. As always a. excellent, professional crew. [no food on a a short hop).

Take-off delayed an hour because of a missing flight officer, so,arrived in Charlotte lates causing many passengers to miss connections. Otherwise a very good flight, safe and comfortable, with an excellent professional crew.

Little time between flight from Dallas to flight to Gainesville. We chose this one, 43 minutes between, because the price for a connection with at least an hour between, was so much higher. Had to ask passengers on the Dallas flight to please allow us to deplane ahead of them. The economy passengers allowed this. We had to walk very fast to the next gate, 35 gates away. Thankfully all in the same terminal. Getting to the small Gainesville plane was a little confusing as you enter an area that is boarding many small planes at the same time. We stood in the wrong line for about 15 seconds before realizing it was not our Gainesville flight. Since I had boarded at this gate in the past, I knew to check the signs carefully so we weren’t lost. The first class seat experience was wonderful. I really enjoyed the upgrade. We were offered an alcohol drink as soon as we sat down. I got something different but it was a great gesture especially since we really had to hurry to make the flight. We had packed expecting we might miss this connection, but made it. Our luggage didn’t miss the flight. American Airlines delivered our bags to our home the next day. That was very convenient!

The plane was large, not full, but one with 3 seats near each window and 4 in a row in the middle of the plane. There were screens on the backs of the seats for entertainment and information. To use the entertainment one needs ear plugs that physically plug into the screen. My husband had some he let me use as I only had blue tooth type. The stewards gave out some headphones to some, but when my neighbor asked for some, the steward said no. So maybe they ran out? Idk. Bring the old kind of headphones or earbuds if you want entertainment in case this is the type of entertainment offered. We had a very tight connection in Miami. 43 minutes. The other economy passengers allowed us to get ahead of them because I asked if we could since we were near boarding time for our next flight and 35 gates away. They were extremely kind. First class wasn’t going to allow us to pass through. We did make the next flight. Our baggage didn’t, but they were delivered to us the next day and we were prepared with essentials in our carry on packs.

Food is what you expect on a plane. Nothing gluten free. But that is expected. Drinks, apple juice, was fine. Seat, what I expected. Fine.

Everything went as planned. The only issue I had was with the gate C31 attendant. The person could barely speak English and was very difficult to understand.

The flight took off an hour late which made the connection concerning

The flight from LA to Chicago was smooth and service was very good overall.

The flight from Dallas to Tokyo was not on Japan Airlines. It was on American Airlines. Very disappointed that we did not fly on Japan Airlines. Will not be using you liars again. I’ll just book direct from the airline next time. Wish you could make this right and has us fly on Japan Air when heading back home to the US.

The Mario was so helpful and provided amazing customer service however l have being waiting for a callback for almost a week now and have not heard anything further after l informed them l wanted to change my date of traveling because of my hospital appointment even send them proof and l was unable to use manag your booking on their website is a bit frustrating and l would appreciate an update on My request as soon as possible. And have called them times without numbers no response

There weren't enough employees at check in took awhile to get bags checked. There wasn't a wheel chair for me, I was sent to someone who turns out to work for a different airline, if My flight hadn't been delayed I probably would have missed my flight as it was, by the time I arrived at my gate, they started boarding in about 15 minutes. I don't know who took me to my gate, definitely was not the normal people who take passengers to the gate. I'm guessing she may have been in a management position. I wish I knew her name, she went beyond to help me. With that said everyone was kind, and were doing the best they could. So, I choose to say it was an Adventure, stressful start, but good. In the end went well. The situation was not only difficult for passengers but the employee's.

The staff at the check in counter was so rude. Made you feel Incompetent

Frontier scheduled a 40 minute connection in DEN. What they failed to mention was that they “close the doors” 20 mins prior to departure, which means you only have 20 mins. Not enough time. Possibly against DOT regulations. Filing complaint.

Flight was scheduled at 9:40pm. Got delayed to 10 am, the next day. crazy

The bag check, flight check-in, and onboard experience convinced my wife and me that we will actively go out of our way to avoid flying Frontier Airlines in the future. At bag check, we were informed that check-in could only be completed via the Frontier mobile app. Unfortunately, the app was extremely frustrating—sending us through repetitive, confusing loops that repeatedly forced us to decline add-on services with nearly every click. While most airline apps upsell, this one felt intentionally exhausting. As the process dragged on, we became genuinely concerned that my phone battery would die before check-in could be completed. We approached the bag check staff—who were standing together talking—and explained both our frustration and our predicament. They laughed. Later, my wife described the interaction as “gaslighting,” which felt accurate. We were then informed it would cost $25 per person simply to have our boarding passes printed. From that point forward, the tone of the experience was consistently hostile. The bag check employees were condescending and combative, behaving more like bullies than customer service staff. Unfortunately, that same attitude continued onboard. One flight attendant argued with me when I attempted to stow my backpack in the overhead bin. I explained that we had each paid $75 to check our bags specifically so we would not need to use carry-on space and could have adequate legroom. She demanded to see my ticket, pointed out that it said “no carry-on”—which I acknowledged—and I reiterated that this was precisely why we paid to check our bags. Her response was, “I don’t make the rules.” She then walked away, but not before asking if I “truly wanted to fly back to Chicago today?”—an unnecessary and unmistakable threat. It is also worth noting that despite booking our tickets together in the same transaction, we were not seated together. Upon our return to Chicago—where we could once again sit together—we compared onboard experiences. We both remarked on how unhappy the flight attendants appeared and how each of us was separately asked whether we would like to purchase a beverage. We declined. At no point was water mentioned as an option, leaving us with the clear impression that even water came at a cost—or that complimentary water, if available at all, was deliberately left unmentioned. Overall, the experience was shocking and deeply disappointing, but it was also a profound learning experience—one we will not forget and will not repeat. -Steve

Plane was hot and miserable and the crew was rude!

12 hour delay required getting on and off plane 3 times - would have at least liked to have been offered a snack or drink

They didn’t offer a water, even after I asked

They switched our terminal 3 times and we were delayed for four plus hours!!!

It was an early flight and most people napped/slept and the crew let us which was nice.

Everything you need to know for your flight from Denver to Baltimore

Other airlines flying from Denver to Baltimore

Flights from the other most popular airlines that fly from Denver to Baltimore according to KAYAK users. Prices are the lowest found on KAYAK over the last 7 days. Price and availability are not guaranteed.