DEN - BOS

$128 Find Cheap Flights from Denver to Boston - Compare and Save

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 Boston departing on 8/14. 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 Boston

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Denver to Boston.
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Denver to Boston.
Travelers love KAYAK
41,299,237 searches in the past 7 days on KAYAK

Save 21% or moreCompare multiple travel sites with one search.

Track pricesNot ready to book? Create a price alert for when prices drop.

Bundle and saveSave money when you bundle your flight + hotel.

Filter your dealsChoose cabin class, free Wi-Fi and more.

Everything you should know

Cheapest round-trip
$245
Typical prices: $297-$487
United Airlines
Sat 7/11Wed 7/15
DEN - BOS • Non-stop
Cheapest one-way
$128
Typical prices: $153-$303
Frontier
Fri 8/14
DEN - BOS • 1 stop
Advice from real travelers
AI-powered summary based on content written by travel experts. AI can make mistakes.
JetBlue adds free Wi-Fi; Delta offers it for SkyMiles members on domestic flights.
For more room, JetBlue Even More Space beats Delta Comfort Plus and United Economy Plus.
Expert advice
Expert advice
Expert advice
Expert advice
Top airlines
Cheapest • from $245 (round-trip)
Best reviews • 7.9 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
Nonstop flights
You can fly direct with Delta, JetBlue and others. Average duration is 4h 00m
Direct flights
Direct flights
+1
+1
Direct flights
Direct flights
+1
Avoid delays
Most punctual • 82% on-time
Best time • Fewest delays
Insights
Insights
Insights
Insights
Top layover airports
Cheapest • Avg $229 (round-trip)
Shortest trip • 5h 30m (one-way)
Insights
Insights
Insights
Insights
When to book
in advance
Our data shows that travelers who book at least 3 weeks in advance save around 25% compared to booking last minute.
Insights
Insights
Insights
Insights
When to travel
Cheapest • 19% price drop
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
+1
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 Boston!
Flight Deals
Booking Insights
Expert advice
Flight Deals

Cheap Flights from Denver to Boston (DEN-BOS)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Denver to Boston 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 Boston

Sat, Jul 11 - Wed, Jul 15
United Airlines Logo
11:59 pm - 5:58 am
DEN
-
BOS
3h 59mnonstop
United Airlines Logo
8:39 pm - 11:26 pm
BOS
-
DEN
4h 47mnonstop
$245United Airlines
Thu, Aug 20 - Sun, Aug 23
Frontier Logo
11:59 pm - 11:47 am
DEN
-
BOS
9h 48m
1 stop
Frontier Logo
9:36 am - 10:05 pm
BOS
-
DEN
14h 29m
1 stop
$246Frontier
Fri, Nov 6 - Mon, Nov 9
United Airlines Logo
3:58 pm - 9:55 pm
DEN
-
BOS
3h 57mnonstop
United Airlines Logo
9:20 am - 12:11 pm
BOS
-
DEN
4h 51mnonstop
$247United Airlines
Mon, Aug 10 - Thu, Aug 20
Frontier Logo
11:59 pm - 10:57 am
DEN
-
BOS
8h 58m
1 stop
Frontier Logo
10:04 am - 11:00 pm
BOS
-
DEN
14h 56m
1 stop
$248Frontier
Fri, Aug 14 - Wed, Aug 19
American Airlines Logo
10:43 am - 9:05 pm
DEN
-
BOS
8h 22m
1 stop
American Airlines Logo
3:20 pm - 10:43 pm
BOS
-
DEN
9h 23m
1 stop
$249American Airlines
Thu, Sep 3 - Tue, Sep 8
Multiple Airlines Logo
11:59 pm - 11:47 am
DEN
-
BOS
9h 48m
1 stop
Multiple Airlines Logo
5:01 am - 12:57 pm
BOS
-
DEN
9h 56m
1 stop
$250Multiple Airlines
Fri, Aug 7 - Tue, Aug 25
JetBlue Logo
11:59 pm - 8:45 am
DEN
-
BOS
6h 46m
1 stop
JetBlue Logo
8:03 pm - 10:42 pm
BOS
-
DEN
4h 39mnonstop
$251JetBlue
Wed, Jul 8 - Fri, Jul 10
American Airlines Logo
5:00 am - 1:37 pm
DEN
-
BOS
6h 37m
1 stop
American Airlines Logo
9:37 am - 2:03 pm
BOS
-
DEN
6h 26m
1 stop
$252American Airlines
Mon, Aug 31 - Fri, Sep 4
Multiple Airlines Logo
11:37 pm - 5:30 am
DEN
-
BOS
3h 53mnonstop
Multiple Airlines Logo
12:45 pm - 10:10 pm
BOS
-
DEN
11h 25m
1 stop
$253Multiple Airlines
Tue, Jul 14 - Tue, Jul 21
Southwest Logo
7:40 am - 6:00 pm
DEN
-
BOS
8h 20m
2 stops
Southwest Logo
5:50 am - 9:45 am
BOS
-
DEN
5h 55m
1 stop
$254Southwest
Booking Insights

KAYAK's insights & trends for Denver to Boston flights

Get data-powered insights and trends into flights from Denver to Boston 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 Boston?

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 Boston departing in July.

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

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

If your flying dates are flexible, you should consider flying to Boston on a Wednesday, as we generally find the cheapest rates on that day for this route. On the other hand, Monday is the most expensive day to fly from Denver to Boston. For your return ticket, we recommend flying on a Wednesday and avoiding Sundays for the best deals.

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

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Denver to Boston, 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 Boston is January, where tickets cost $279 (return) on average. On the other hand, the most expensive months are June and July, where the average cost of round-trip tickets is $419 and $390 respectively.

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

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.

Yes, flying with a layover may cost you more time, but you can also save money on the route, with a 1 stop layover the cheapest option at $325 on average.

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

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 Boston, 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 Boston, you should book around 3 weeks before departure, which saves you about 25% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 24 weeks before departure.

Expert advice

Expert advice for your flight from Denver to Boston

 
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
Stefanie Waldek

Stefanie Waldek

Expert on United Airlines and Delta

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 JetBlue 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.

Blane Bachelor

Blane Bachelor

Expert on Southwest and BOS

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.

KAYAK's tips to save more on a Denver to Boston flight

When planning a flight from Denver to Boston, there are several strategies to consider for saving money. Generally, Wednesday is the cheapest day of the week to fly, and January is the cheapest month.

Advance Booking: Book your flight at least 57 days in advance for the best prices.

Cheapest Airline: Consider flying with Frontier, as it is generally the cheapest airline for this route.

Direct Flight: Opt for a direct flight, as it is significantly cheaper than flights with layovers.

Specific Route: Stick to the direct route from Denver International to Boston Logan International for the best deal.

Off-Peak Travel: Consider traveling in January for the lowest monthly rates.

AI-powered; AI can make mistakes.

Good to know

Low seasonJanuary
Cheapest flight$128
Best time to beat the crowds with an average 20% drop in price.
Most popular time to fly with an average 13% increase in price.
Flight from Denver to Boston

When to book flights from Denver to Boston

Are your dates flexible? Find out the best times to travel from Denver to Boston 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 Boston

  • Are there on-site hotels at Boston Airport?

    There are two hotels located on the airport property to choose from: either the Hilton Boston Logan Airport or the Hyatt Regency Harborside. The former is connected via bridge to the airport terminals or complimentary shuttles if you are traveling with lots of baggage. The latter has premier service, fine dining, and incredible views of the Boston skyline. Both hotels make it easy to get into the center for a quick trip with complimentary shuttles to the water taxi and subway station.

  • What are my options to get to the Denver Airport by public transportation?

    You can either take the A line commuter train that leaves from the Denver Union Station in downtown Denver, or the airport bus line called SkyLine to Jeppesen Terminal. Both the train and bus run most hours of the day. Although they are not public transportation per se, there are also shared rides and shuttle buses that can be arranged online.

  • What are some good tips for getting through Denver Airport quickly?

    A good tip for getting through security quickly at the Denver Airport if there are long lines is to proceed to the security checkpoint that is located in Concourse A just after the pedestrian bridge that goes to the Westin Hotel as it is slightly hidden and is less busy than other security lines. Another tip to get through Denver Airport as quickly as possible is to check out VeriFLY where you can reserve a 15-minute TSA screening window on the day of your flight in advance. This will expedite your time in the security lane. You will be required to fill out a health questionnaire as you create an account on the VeriFLY app.

  • What are my options to get to downtown Boston from the airport via public transportation?

    The airport is well connected to the South Station in downtown Boston by the Silver Line and better yet it’s free. There is a free shuttle bus that will take you from the airport terminal to catch the Silver Line.

  • Are there any on-site hotels at Denver International Airport (DEN)?

    When you have an early flight out of Denver International Airport (DEN), you will likely find it convenient to stay at a hotel the night before. The Westin Denver International Airport is located just a short distance from the main terminal and has over 500 rooms available for travelers.

  • What services does Boston Logan International Airport (BOS) offer for students with limited mobility?

    If you or someone that you are traveling with will need additional assistance once you have landed at Boston Logan International Airport (BOS), airport employees can help you. The airport is also equipped with ramps, elevators, and wheelchair-accessible restrooms.

  • What dining options are available at Denver International Airport (DEN)?

    Denver International Airport (DEN) has a few different dining options for those that find themselves hungry before boarding their flight. For example, there is the Boulder Beer Tap House in the Jeppesen Terminal, the Cantina Grill near the B Gates, and the Que Bueno! Mexican Grille is also near the B Gates.

  • Is it possible for me to rent a car from Boston Logan International Airport (BOS)?

    Boston Logan International Airport (BOS) has a car rental center that contains the offices of several major rental companies, making it easy to rent a car once your flight has landed. Some of the companies that you will find here include SIXT, Payless, and Thrifty.

  • What parking options are available at Denver International Airport (DEN)?

    If you will be driving to Denver International Airport (DEN), there are a few different parking options that you can choose from. There are several Economy Parking Lots for those that are traveling on a budget, as well as a main parking lot near each terminal. Most parking lots offer both short and long-term rates.

  • Does Boston Logan International Airport (BOS) have any animal relief areas?

    Those that will be traveling with pets will want to take note of the animal relief areas that are at Boston Logan International Airport (BOS). You will find an indoor and outdoor pet relief area in each terminal of the airport. They are equipped with disposal waste bags and trash cans. 

  • What is the cheapest flight from Denver to Boston?

    In the last 5 days, the lowest price for a flight from Denver to Boston was $128 for a one-way ticket and $245 for a round-trip.

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

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

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

    Denver and Boston are both served by 1 main airport. You will leave Denver from Denver Intl and will be arriving at Boston Logan Intl.

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

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

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

    The Airbus A321neo is the aircraft model that flies most regularly on the Denver to Boston flight route.

  • Which airline alliances offer flights from Denver to Boston?

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

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

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

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

    The two airlines most popular with KAYAK users for flights from Denver to Boston are Southwest and Delta. With an average price for the route of $377 and an overall rating of 7.9, Southwest is the most popular choice. Delta is also a great choice for the route, with an average price of $333 and an overall rating of 7.8.

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

    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 Boston.

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Boston 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 Boston?

    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 Boston with an airline and back to Denver with another airline. Booking your flights between Denver and BOS 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 Boston?

    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 Boston 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 Boston

  • Looking for a cheap flight? 25% of our users found flights on this route for $191 or less one-way and $354 or less round-trip.
  • JetBlue and United Airlines both offer nonstop flights from Denver Intl (DEN) to Boston Logan Intl (BOS). Alternatively, Sun Country Air and Frontier also have great flight deals from Denver to Boston, but with one layover either in Miami (MIA) or Minneapolis St Paul (MSP).
  • Denver International Airport is just a short drive away from downtown Denver, 25 miles away. The airport is very well-connected to downtown by public transportation, and you can also opt for a quick taxi instead.
  • Once you’re through security you will find everything you need to keep you comfortable while you wait for your flight from free charging stations for all your devices, free Wi-Fi to stay connected, two lounges (United Club East and Delta Sky Club), nursing rooms, prayer halls, and an on-site pet resort.
  • Boston Logan International Airport, also known as Massport, has four passenger terminals, A, B, C, and E, and are separated from each other. Each terminal has free ground transportation, Wi-Fi, and food and concession stands.
  • While waiting for your flight to board at Denver International Airport (DEN), make sure to keep your eyes open for the DEN CATS. This group is made up of over 80 dogs and one cat, as well as volunteers that walk them throughout the airport in order to say hi to travelers.
  • If your little ones need to unwind after being cooped up in a plane for several hours, make sure to bring them to the Kidport in Terminal B of Boston Logan International Airport (BOS). This play area is filled with a variety of toys and activities, allowing them to have fun for a few minutes before you head to your final destination.
  • To unwind before you board your flight at Denver International Airport (DEN), you may want to head to A Massage, which can be found near the B Gates on the Mezzanine Level. This spa offers a selection of treatments, including back, foot, and neck massages.

Prefer to fly direct from Denver to Boston?

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

Direct departures

Denver Intl to Boston Logan Intl

Monday

Delta,JetBlue,Southwest, +1 more

Delta,JetBlue, +2 more

Tuesday

Delta,JetBlue,Southwest, +1 more

Delta,JetBlue, +2 more

Wednesday

Delta,JetBlue,Southwest, +1 more

Delta,JetBlue, +2 more

Thursday

Delta,JetBlue,Southwest, +1 more

Delta,JetBlue, +2 more

Friday

Delta,JetBlue,Southwest, +1 more

Delta,JetBlue, +2 more

Saturday

Delta,JetBlue,Southwest, +1 more

Delta,JetBlue, +2 more

Sunday

Delta,JetBlue,Southwest, +1 more

Delta,JetBlue, +2 more

See more direct flights

Direct returns

Boston Logan Intl to Denver Intl

Monday

Delta,JetBlue,Southwest, +1 more

Delta,JetBlue, +2 more

Tuesday

Delta,JetBlue,Southwest, +1 more

Delta,JetBlue, +2 more

Wednesday

Delta,JetBlue,Southwest, +1 more

Delta,JetBlue, +2 more

Thursday

Delta,JetBlue,Southwest, +1 more

Delta,JetBlue, +2 more

Friday

Delta,JetBlue,Southwest, +1 more

Delta,JetBlue, +2 more

Saturday

Delta,JetBlue,Southwest, +1 more

Delta,JetBlue, +2 more

Sunday

Delta,JetBlue,Southwest, +1 more

Delta,JetBlue, +2 more

See more direct flights

Reviews of the top 5 airlines serving from Denver to Boston

 
See real verified KAYAK customer reviews for airlines flying from Denver to Boston. 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 Boston? 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.
7.9
SouthwestOverall score based on 4242 reviews
8.1Boarding
8.0Comfort
8.6Crew
7.5Entertainment
7.0Food
Airline reviews

The flight was late. The crew was rude. There was no food. Cramped and uncomfortable. Nothing about this flight was good.

2.0 MediocreIrene, Jun 2026
DEN - SFO
Read more Southwest reviews

The flight was late. The crew was rude. There was no food. Cramped and uncomfortable. Nothing about this flight was good.

It was great. The gate staff were very helpful in Portland when my son forgot his rolling bag and had to go back to get it just in time to make it on the plane. We really appreciate that. Great job!

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

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.

Everything went smoothly and we even arrived a little bit early.

Connecting flight is on time and boarding was a breeze!

WiFi did not work. For as outrageous as these flights cost, when they’re advertised with certain services/ features they should be in working order

I would have liked to arrive on time - not 5 hours late!

1.5 hour delay, poor service, no compassion from the crew. Terrible experience

Our flight was diverted from being a non-stop to getting within 150 miles and requiring another plane. We heard 4 or 5 different versions from SW as to why we had to stop, then wait for a replacement plane. Five hour delay, weather did not come up as a single excuse.... communication was not clear and well explained. No one really took charge!

Much better than Latam, the worse airline company ever. I hope I don't have the need to fly Latam ever in my life again.

My flight yesterday evening was delayed 3.5 hours with no water or food service. Poor experience

The tray table was broken and the food was terrible.

Flight delayed. Air broken. Cabin was hot enough to pass out. Delta shuttle’s becoming worse and worse.

The first class flight attendant was awful to everyone. Very rude; no customer service. She should not be working in first class.

delta last minute gave me a boarding pass for a different flight with no confirmation that they were changing it

It was Delta, but the flight attendants were stressful and disrespectful. I am a diamond member a travel weekly. I have not had a negative thing to share in quite some time. But this was noticeable.

Advertised fruit trays with cheese, but only snacks handed out!

This flight was straightforward and without difficulty. Service was OK, but I continue to be underwhelmed by level of attention given to Sky Priority passengers.

Perfect flight both ways. On time, courteous staff, plane comfortable and cool. Best domestic flights I’ve had in awhile.

My service dog and I were asked to deplane just before they closed the door - clearly very last minute they couldn’t find the documentation that I have filled out many many times before that is for flying service animals. I purposely purchase 3seats (a whole row) since he is large and not all passengers want to sit next to a dog on a cross country flight. The plane departed with my husband on it!!! They made me fill out a hard copy of the same form and had to reschedule me on a later flight where they could find 3 seats together!! I’ve done this so many times before - clearly the error was on their part in a technology glitch - but really people - do better!! Very traumatic - and my husband had to wait for us when he landed ….so bad. Poor pup was confused and tired.

Super friendly with lots of drink options an entertainment. Friendly crew.

I like flying first class, and United has a nice one

United airlines has the best customer experience from booking to arrival. I always fly United airlines. The mileage program is excellent

Impressed with the service despite turbulence because of the weather. Both flights arrived before their scheduled times.

Plenty of room for me and the cat in Premium Economy. Seat was comfortable. Boarding was a breeze. The lady at the special check-in desk was great, super helpful and professional.

It’s been awhile since I have traveled on United. I, along with my family who were on the flight noted how smoothly everything went . Boarding, flight crew and service was excellent.

Good even though flight was delayed, the crew was prompt and efficient.

You could have been ON TIME! And I was miffed because I spent an extra $82 to get my seat and the steward put a woman from the back in my aisle for nothing because her movies wouldn’t work. I’ll try that next time and save $82!

Again a nearly five hour flight and pretzels is all the food you get and all you can drink water. No electric plugs in economy. Staff was totally not caring. Delta next time

The flight was delayed 14 hours and communication was very poor. No one seemed to know what was happening and the gate agent was trying to help people for several flights. She was by herself trying to help 100s of people.

JetBlue worker, Blythe, was so amazing at the DCA counter. If it wasn’t for her, I’m not sure we would’ve made it through. Please thank her!

The flight out was delayed from 3:40pm to 5pm and again to 8pm. We boarded after 5pm, had to disembark because they could not get the Engine started, then we switched gates and got a new plane and did not board until after 8pm.

This was the first flight I've taken since pre-pandemic. I was pleased with how orderly the boarding and disembarking went. The seats were comfortable. I loved that there was no "first class'. The attendants and passengers I met were all very friendly and welcoming.

There was a screen but no earphones that could use the older input so I could listen to anything.

Jet blue just had great service overall! Only a little turbulence heading out of Austin, otherwise the jet stream helped the speed of the trip!

Boarding was quick and efficient. The flight crew were friendly. There were limited food options available on the flight. The pocket guide said there would be salad and sandwich sections available on flights over 3.5 hours. The only food available were snack boxes. And those were limited as well. My flight was over 5 hours. The entertainment system worked well. I had both extra legroom seats and regular coach seats. The seats were not very comfortable. The entertainment controls in the armrest made it difficult to rest my arm without changing the channel on my neighbors TV. Overall, my experience was mediocre.

Boarding was fast, easy, and we landed early. The entertainment system was very buggy and kept resetting throughout the flight.

I purchased ticket so our daughter ( a minor) can sit next to her mother. No help at gate after kayak insisted that this could be done. She ended sitting by herself

Smooth boarding and friendly crew. Unfortunately as soon as we boarded the unit that provides air circulation failed. The pilot informed us and requested maintenance technicians to check it out. The plane became uncomfortably warm without any fresh air coming in. Plus the repair delayed our departure. I am glad the maintenance crew were able to fix the problem. I also was without use of my tv monitor for the first 1/3rd of the trip.

Crew was kind of grumpy and there was no beverage service at all. Sodas were $4. Disappointing.

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

There's no seats that lean back with little leg space i wad uncomfortable the entire flight. Your charges for extra baggage is despicable and costly!!

There was no food and no entertainment, so I'm not sure why these are even in the survey, as my understanding is frontier does not ever offer food without a few, not even a snack, and there are no screens so unless the flight safety talk is our entertainment why ask how we liked it?. One of the flight attendants say in the back of the plane as people filed in to their seats, yelling orders about where to put baggage and telling people to hurry up. It was the least professional experience I've ever had on a flight.

Not clean and was told I would get a great seat and it was not great at all

Delayed. Text notifications were slow. Not much information o what was happening. Boarding was slow and confusing. Wasn’t even offered water other flight. Had to ask. No entertainment at all. Felt like.a Greyhound bus.

Frontier is the Walmart of airlines. Frontier has removed adjustability and comfort from their seats to make the flight lighter and save gas. This makes it impossible to sleep on their flights. Their customer service is abysmal. Once, I bought a drink on the plane, and they swiped my credit card on the plane to pay for it. Then I got three weeks of daily notices from my bank telling me they tried to charge the wrong card number over and over again. I tried to call them, but they removed the ability to actually talk to someone that can resolve such a problem from their company to cut corners. The only way to talk to someone in person is to go to the check-in counter at the airport (40 minutes drive from my house). Eventually their system gave up on trying to charge the card, after 21 days of repeated tries. They don't pad their prices even a little to handle customer service issues like missed flights. They also have a blanket policy preventing helping you reschedule a missed flight if their system says you "cancelled" your own flight online. This is a major problem because their website is broken on mobile devices, the only web browser you have at the airport when their gate staff tell you that you have to reschedule your own missed flight online because they can't help you. I tried to reschedule my flight on my android device and instead, their website crashed and "cancelled" my missed flight. When I got to the counter, the agent argued with me for 5 minutes insisting that I intentionally cancelled my own flight (implying I had to buy another flight). She missed the point: the problem was that I could not buy another flight because their website is broken. I left to avoid more conflict with the "customer service" agent. I tried to redress my issue with their only other "customer service" chanel available: the contact form on their website. The response I got was more of the same: you cancelled your own flight, according to our website / computer records, therefore we won't help you. I was trying to explain the problem with their broken website that cost me hundreds of dollars by crashing / malfunctioning and resulting in a cancelled flight, but they only had deaf ears for this problem. Worst customer service I have ever experienced. I will never buy another Frontier flight again, because it is a risky, painful move that I will likely regret often.

What I expected, nickeled and dined and a frontier flight attendant loudly complained about her job and lack of communication as she headed to the gate on her cell phone. Not professional.

I’m not gonna fly Frontier Airlines because booking is not an option. No water or food is for high price, not equipped for health emergency incompetent crew for emergency services. Cheap airline shows it is cheaper in all service categories. Boarding is the best of all airlines!

Charging $74 for one checked bag is outrageous. I will never fly Frontier again.

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

Other airlines flying from Denver to Boston

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