BOS - DEN

$98 Find Cheap Flights from Boston to Denver

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Boston to Denver departing on 4/11. 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 Denver

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Boston to Denver.
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Boston to Denver.
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Everything you should know

Cheapest round-trip
$199
Typical prices: $217-$393
Frontier, JetBlue
Mon 5/4Sat 5/9
BOS - DEN • 1 stop
Cheapest non-stop
$199
Typical prices: $229-$398
JetBlue
Mon 3/30Wed 4/1
BOS - DEN • Non-stop
Advice from real travelers
AI-powered summary based on content written by travel experts. AI can make mistakes.
JetBlue offers free gate-to-gate Wi-Fi and live TV.
Use the FlyLogan app to reserve parking at BOS.
Expert advice
Expert advice
Expert advice
Expert advice
Top airlines
JetBlue
Cheapest • from $200 (round-trip)
Southwest
Best reviews • 8.0 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
Nonstop flights
Every day
You can fly direct with Delta, JetBlue and others. Average duration is 4h 52m
Direct flights
Direct flights
+1
+1
Direct flights
Direct flights
+1
Avoid delays
United Airlines
Most punctual • 86% on-time
Morning flights
Best time • Fewest delays
Insights
Insights
Insights
Insights
Top layover airports
Cleveland (CLE)
Cheapest • Avg $223 (round-trip)
Baltimore (BWI)
Shortest trip • 6h 34m (one-way)
Insights
Insights
Insights
Insights
When to book
3 weeks
in advance
Our data shows that travelers who book at least 3 weeks in advance save around 30% compared to booking last minute.
Insights
Insights
Insights
Insights
When to travel
April
Cheapest • 7% price drop
June
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
+1
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Flight Deals
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Expert advice
Flight Deals

Cheap Flights from Boston to Denver (BOS-DEN)

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

Mon, May 4 - Sat, May 9
Multiple Airlines Logo
12:42 pm - 10:29 pm
BOS
-
DEN
11h 47m
1 stop
Multiple Airlines Logo
11:08 pm - 5:01 am
DEN
-
BOS
3h 53mnonstop
$199Multiple Airlines
Tue, Apr 28 - Sat, May 9
JetBlue Logo
11:55 am - 2:39 pm
BOS
-
DEN
4h 44mnonstop
JetBlue Logo
11:08 pm - 5:01 am
DEN
-
BOS
3h 53mnonstop
$200JetBlue
Wed, Mar 18 - Wed, Mar 25
Frontier Logo
11:51 am - 11:04 pm
BOS
-
DEN
13h 13m
1 stop
Frontier Logo
12:30 pm - 11:40 am
DEN
-
BOS
21h 10m
1 stop
$201Frontier
Thu, Apr 2 - Tue, Apr 14
United Airlines Logo
9:15 am - 12:02 pm
BOS
-
DEN
4h 47mnonstop
United Airlines Logo
4:01 pm - 9:59 pm
DEN
-
BOS
3h 58mnonstop
$202United Airlines
Tue, Mar 24 - Wed, Mar 25
Southwest Logo
5:00 am - 7:45 am
BOS
-
DEN
4h 45mnonstop
Southwest Logo
7:20 am - 2:35 pm
DEN
-
BOS
5h 15m
1 stop
$203Southwest
Mon, Apr 13 - Fri, Apr 17
JetBlue Logo
7:50 pm - 10:36 pm
BOS
-
DEN
4h 46mnonstop
JetBlue Logo
11:59 pm - 5:47 am
DEN
-
BOS
3h 48mnonstop
$204JetBlue
Wed, Mar 25 - Mon, Mar 30
Southwest Logo
5:00 am - 7:45 am
BOS
-
DEN
4h 45mnonstop
Southwest Logo
7:05 pm - 12:50 am
DEN
-
BOS
3h 45mnonstop
$205Southwest
Wed, Mar 25 - Mon, Mar 30
Frontier Logo
12:09 pm - 11:04 pm
BOS
-
DEN
12h 55m
1 stop
Frontier Logo
11:59 pm - 11:41 am
DEN
-
BOS
9h 42m
1 stop
$206Frontier
Wed, Apr 15 - Sat, Apr 18
Southwest Logo
5:35 am - 8:05 am
BOS
-
DEN
4h 30mnonstop
Southwest Logo
11:55 pm - 8:30 am
DEN
-
BOS
6h 35m
1 stop
$207Southwest
Tue, Apr 14 - Sat, Apr 18
Southwest Logo
8:10 am - 2:05 pm
BOS
-
DEN
7h 55m
2 stops
Southwest Logo
11:55 pm - 8:30 am
DEN
-
BOS
6h 35m
1 stop
$208Southwest
Booking Insights

KAYAK's insights & trends for Boston to Denver flights

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

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

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

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

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

Your flight ticket price will generally be cheaper if you fly to Denver on a Tuesday and more expensive on a Sunday. On your return trip to Boston, you should consider flying back on a Wednesday, and avoid Mondays for better deals.

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

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Boston to Denver, 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 Boston to Denver is April, where tickets cost $298 (return) on average. On the other hand, the most expensive months are February and December, where the average cost of round-trip tickets is $369 and $352 respectively.

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

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 $335 on average.

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

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights from Boston to Denver, 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 Boston to Denver, you should book around 3 weeks before departure, which saves you about 30% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 4 weeks before departure.

Expert advice

Expert advice for your flight from Boston to Denver

 
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 Boston to Denver flight

Based on the flight data, it appears that the cheapest day of the week to fly from Boston to Denver is Tuesday, while the cheapest month to travel is January.

Cheapest Route: Choose the direct route from Boston Logan Intl to Denver Intl for the most affordable option.

Booking Advance: Book your flight at least 58 days in advance to get the best deal.

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

Direct or Layover: It's cheaper to fly direct from Boston to Denver than to have a layover.

AI-powered; AI can make mistakes.

Good to know

Low seasonNovember
Cheapest flight$98
Best time to beat the crowds with an average 5% drop in price.
Most popular time to fly with an average 1% increase in price.
Flight from Boston to Denver

When to book flights from Boston to Denver

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

  • How can I get from Denver airport to downtown Denver?

    A quick and economic way to reach downtown Denver is with the A Line Commuter Train, which departs from the airport’s station. To reach Denver Union Station, it will take about 40 min and a day pass will cost approximately $11. The train departs every 15 min from the station and runs from 3:00 am to 1:00 am. If you arrive outside these times, you can also opt for a taxi, which will cost approximately $56 to get to Denver.

  • Where can I sleep close to Denver airport?

    To find accommodation close to Denver airport, look no further than the Westin Denver International Airport Hotel. This modern hotel is just a few steps from the terminal building and offers a huge business center, various event rooms, and swimming pools. Multiple restaurants are also dotted around, for a well-rounded hotel experience just a few minutes from the airport.

  • Can I park long-term at Boston airport?

    Boston Logan airport has an economy-friendly parking lot just a few minutes from the terminal building. This way, you can drive your own car to the airport and have it await your return without accumulating astronomical fees. The first day costs approximately $52 and each subsequent day is approximately $26. To reach the airport, you can use the courtesy shuttle bus operating between the lot and the terminals.

  • How far is the Rocky Mountain Arsenal Wildlife Refuge from Denver Airport?

    Denver airport lies conveniently close to the Rocky Mountain Wildlife Refuge and only 16 mi separate you from an encounter with the wild animals. You can reach it by public transport with the A Line Train to Central Park Station, then change for the 62 bus, which stops at Prairie Parkway.

  • How many terminals are there at Denver International Airport (DEN)?

    There’s only one terminal at DEN, the Jeppesen Terminal, and three concourses: A, B, and C. Jeppesen Terminal serves check-in facilities, security checkpoints, customs, immigration and baggage claim. On the other hand, the concourses are used for departure. Transfer from the terminal to the three concourses is via the Automated Guideway Transit System. This service runs from the terminal through the concourses every 5-15min.

  • Are there any lounges at Denver International Airport (DEN)?

    Several carriers operate multiple lounges at Denver International Airport (DEN), including American Airlines’ Admirals Club and Delta Airline’s Delta Sky Club. Members and holders of registered cards get priority access. Also, as an economy class traveler, you can access these lounges if you agree to pay for a day pass.

  • Is there a prayer room at DEN?

    Suppose you want to retreat to a quiet space and thank your god for a safe journey from BOS to DEN – you’ll be happy to learn that BOS offers a dedicated prayer room. The room is situated in Jeppesen Terminal, Level 6 East. Services start at 4 am and close at midnight, daily. This religious sanctuary accommodates both the Islamic Masjid and an interfaith chapel.

  • Where can I withdraw money at DEN?

    If you’ve just landed at DEN and want to recharge your wallet, you won’t have a shortage of options. The Public Service Credit Union runs ATMs in the Jeppesen Terminal and at A, B and C Gates.

  • What is the cheapest flight from Boston to Denver?

    In the last 3 days, the lowest price for a flight from Boston to Denver was $98 for a one-way ticket and $199 for a round-trip.

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

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

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

    On your way to Denver, you’ll fly out from Boston Logan Intl. You’ll be landing at Denver Intl.

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

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

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

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

  • Which airline alliances offer flights from Boston to Denver?

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

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

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

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

    The two airlines most popular with KAYAK users for flights from Boston to Denver are Southwest and Alaska Airlines. With an average price for the route of $316 and an overall rating of 8.0, Southwest is the most popular choice. Alaska Airlines is also a great choice for the route, with an average price of $331 and an overall rating of 8.0.

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

    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 Boston to Denver.

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

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

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

    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 Denver from Boston 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 Boston to Denver

  • Looking for a cheap flight? 25% of our users found flights on this route for $175 or less one-way and $294 or less round-trip.
  • Do you want to fly nonstop from Boston to Denver without spending too much money? With low-cost airlines like Frontier, JetBlue, and Spirit Airlines, this is an easy mission to accomplish. Any of these three airlines offer direct and cheap flights from Boston to Denver, so you have more money to spend in Colorado’s capital city.
  • While waiting for your flight from Boston to Denver at Boston Logan International Airport (BOS), let your kids spend their energy at the Kidports of Terminal A, B, or C. Toys and a big airplane are there for fun and entertainment before boarding.
  • Boston Airport features various lounges, some of which also give out entry passes to economy flyers of any airline. The Club is located in Terminal E in the post-security area and economy passengers can purchase 3-hour passes for approximately $40. The Lounge in Terminal C on the first floor, close to Gate C19, also welcomes economy travelers for a fee of $40 per 3h.
  • Denver International Airport (DEN) has an extensive art program that welcomes passengers in style and is also acknowledged as one of the best US airports for art. Permanent and limited exhibitions find their place all around the airport and definitely serve as eye candy for any travelers passing through the corridors and terminal halls.
  • There are two 24-hour eateries at Denver International Airport, in case you arrive late and your stomach is rumbling. Einstein Bros. and Bagels is located in the Center Core of the C Gates and invites with scrumptious bagels and other snacks. If you are at the A Gates and fancy a burger, McDonald’s also has its doors open round the clock.
  • Boston Logan International Airport (BOS) serves as the biggest and busiest airport in Boston. It’s also ranked as one of the 20 busiest establishments in the US. It’s equipped with high-tech innovations and modern infrastructure, hence the airport of choice for most airlines. BOS features four terminals, A, B and C, which are dedicated to domestic departures and arrivals, and E, which handles international flights. Inter-terminal transfer is via walkways, and a shuttle operates from one terminal to the next every 5-15min.
  • As part of the TSA (Transportation Security Administration) Cares program, Boston Logan International Airport (BOS) caters to the needs of passengers with disabilities and travelers with mobility limitations. There are trained and dedicated agents under this program to guide you past the security checks, when using elevators and as you board.
  • In case you’ve arrived at BOS to connect to Denver and you’re feeling fatigued, seek self-indulgence and therapy in some of the spas at this facility. For deep-tissue massage, facials, manicures, pedicures, and waxing, head to Xpress Spa in Terminal B near the American Airlines counter.
  • Those with morning flights from BOS to Denver International Airport (DEN) should consider spending a night at one of the many hotels near Boston Logan International Airport (BOS). Normally, most of these facilities provide their clients with courtesy shuttles to and from the airport. A recommended hotel in this area is Courtyard by Marriott Boston Logan Airport.
  • BOS and downtown Boston are 3.4 miles apart. The best way to travel between the two destinations is via the Silver Line, also known as Route SL1. It departs from the south central station and completes the journey in around 10min.

Prefer to fly direct from Boston to Denver?

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

Direct departures

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

Direct returns

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

Reviews of the top 5 airlines serving from Boston to Denver

 
See real verified KAYAK customer reviews for airlines flying from Boston to Denver. 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 Boston to Denver? 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 4305 reviews
8.1Boarding
8.6Crew
7.5Entertainment
8.0Comfort
7.0Food
Airline reviews

Flight boarded late after announcing on time boarding. Flight arrived only a little late despite late departure. Had trouble connecting to WiFi

4.0 OkayEmma, Mar 2026
LAX - PHX
Read more Southwest reviews

Flight boarded late after announcing on time boarding. Flight arrived only a little late despite late departure. Had trouble connecting to WiFi

Mediocre. Boarding is now unpleasant. The employees, once friendly and nice, are now regularly speaking sternly to passengers, badgering them to do things right so they can take off on time and gate check bags because they don't have enough overhead bin space. The pretzel snack was crushed flat and broken into even smaller pieces, which happens frequently lately. Drink service was suspended before they reached my row.

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!

It was canceled. Supposedly weather. But there was no snow in Baltimore. At least we found out before driving to airport

I have not flown Southwest in awhile and had a very pleasant experience. From ticketing to boarding to the flight. The flight left on time and landed ahead of schedule. It won't be so long next time!!

The Southwest experience has definitely taken a dive from its early days. You can no longer deferentiate from other airlines. Air travel is too expensive. Southwest is no longer budget friendly. They have lost me as a loyal customer.

Flight was hours late, unable to sit next to spouse, I have had so much better experiences. Substantially better, only saving grace was that it was a short flight.

An entire day of delays. Cost lots of money. Meals and a hotel.

The WiFi and crew on the plane were good, however, the boarding experience was awful. I paid for the Choice Preferred and was boarded in group 5 so all overhead storage was full. They found room for our luggage, but further back making getting off the plane a nightmare. Also, we were in row 6 and the seats were extremely uncomfortable. Both my daughter and I had no leg room and couldn’t wait to get off the plane.

The charges were ridiculous for an hour flight and the turbulence was very scary.

Cabin was not pressurized properly. Several passengers had respiratory difficulties.

I was happy that I was able to get a last minute flight but unfortunately my seat was a middle seat. Even with Delta Comfort I wasn't comfortable

There’s not much to say about a one hour flight. This is a connection from LA to RNO that I missed the previous night due to a mechanical check delay on my originating flight from JFK to LAX. The short flight itself was fine. Instructions from the pilot and crew were per usual. The coffee was barely lukewarm, which possibly was purposeful so we would down it quickly. Bags were already on carousel upon reaching baggage claim, which was excellent.

Flight was warm for first few hours and quite rough

Seat was extremely hard which made even a short 1 hour 20 minute flight fairly uncomfortable.

Everything was good except wifi and a leaking drink chiller. The floor was all wet and my bag was soaked. Did not notice until debarking. Have not heard back from Delta. Even though this was leg one of an international flight in first class, they denied access to their Sky Club - very disappointing!

The staff was fine. The plane was extremely tight, and I paid for the wifi and it did not work at all. I was actually going to ask for a refund.

two hour delay and the Delta representative on the PA system was unable to understand

An awesome flight crew. FC seat cushion just doesn’t cut it for a 3+ hour flight.

2+hrs delay without any reason provided and a cramped flight

It’s always a great time flying with united airlines.

We got delayed three hours and nobody thought to have the bathroom fixed while we were sitting waiting to board? took a full hour to have maintenance come and check it off. Had to shut the bathroom down twice so that the pilots could go to the bathroom. Everyone missed their connections.

Women boarding passengers at the gate was absolutely rude and disrespectful of passengers. The flight attendant was absolutely delightful! Smiling and connected with the passengers. So happy. The seats are cramped and uncomfortable but I guess that’s just the way it is Communication regarding flight was excellent

As great a red-eye flight as red-eye flights can be.

Both of my flights arrived early and check in process was smooth

Everything was on time Will use united again for sure

The flight was delayed by two de-icings. The seatbelt did not work correctly. It did not stay tight.

Hotter than Hades in August. Why, why do crews think that in the winter when we are already dressed for cold weather we need a cabin that is 82 degrees. Even the vents were blowing hot air.

Flight was delayed. De-icing took a while. When we landed had to wait for another plane to vacate our gate. Just an overall bad experience.

Not good - outbound flight was delayed and missed my connection even though I got to the gate after running through the airport - the agent would not let me on because the door was closed (flight had not left). There was no notification from United - overall experience was very disappointing. Additionally, I was downgraded from first class to coach on the alternative flight

I have to congratulate Kayak (and Dylan the Chatdeal agent) because because when we decided extended our trip in Florida by two days, there were many direct flights oprions back to Boston available on the Friday we wanted to fly on the JetBlue website, but once I canceled the original JetBlue flight on their website, those direct return options disappeared immediatley! I think it's a game JetBlue plays. . Luckily, I checked Kayak and they had a direct flight that wasn't appearing on JetBlue's website and so I booked it, and we were able to fly home direct through the Kayak booking when JetBlue was offering nothing (even though I have been a True Blue member for 20 years, and also am a Mosaic member). So much for loyalty- their algorithm for booking is like a shell game. JetBlue used to be a good company but now they're worse than anyone. Also I was originally booked this trip to Florida, two months before the departure date, I booked the trip on JetBlue's website and then after the payment part, they said there was a problem and that I needed to do the booking again, so when I immediately went to rebook , the price had gone up 30%! I called them and it sounded like they had heard this so many times before and the guy told me to check back in 10 minutes and the price would be back to where it was when I was booking- it but it never was. How could the price go up 30% in one minute two months before the flight???? They're playing a game with their customers. Anyways, I booked a cheaper flight then at a less convenient time. So fast forward two months the night before the 7 AM flight, they sent me an email at midnight when I was sleeping to let me know that my flight at 7 AM had been canceled. The only thing they offered was a flight that night from from a different airport (Providence) to a different airport in Florida (West Palm Beach) or a flight two days later. No compensation, nothing. They couldn't of tried to get another plane to the Boston airport? They had all night to do it. I passed on their ridiculous options and flew with Delta and it was a great experience. Of course, I had to pay a lot more booking on the same day, but JetBlue doesn't care. I put in a lengthy complaint with the agent who assured me someone would get back to me by email within three days and I haven't heard a thing. JetBlue used to be a good company but now they're among the worst. The only thing they still have is decent legroom, but the corporate bean counters will probably start taking that away too.

We were made to wait in the airport for six hours for a flight that was ultimately canceled.

Both flights were significantly delayed. The flight experience itself was great.

My flight got delayed and eventually canceled, then rescheduled. I and several others had a connection from Boston to Paris and asked several times if we would make it. They assured us we would and then rebooked us mid flight without our consent and closed doors early even though they said they communicated we were a bit delayed. We got stranded in Boston and I opted with being rebooked for a different connection to France since they refused to pay for a Hotel. I've now been in Europe for 5 days and still haven't recieved my bags. There was absolutely no urgency for the fact that I'm in a foreign country with absolutely no change of clothes or any of my medication. Such an overwhelming and frustrating experience.

Automated scanning was slow and somewhat haphazard. Too many people were unfamiliar with the tech and were forced to learn on the fly. The hands off approach of the gate staff made it more uncomfortable. This needs work. Overall the flight and cabin crew were excellent.

The crew for the flight was A+ top notch. They were friendly and professional and made the flight a very relaxing and enjoable.

Rude crew member. She seemed annoyed at me without me saying a single word. Also loudly admonished me for having my bag next to my seat instead of tucked away before landing. Just telling me to put it away and guiding me without giving me a lecture would have been enough.

No included food for a 5 hour flight and the entertainment was only accessible if you had wired headphones (not provided). Otherwise though, great and smooth flying and customer service.

Crew were fantastic and so catering and wonderful! Full score for the entire crew!

Because of weather and mechanical issues our flight was 4 hours late. The only compensation offered to us was a meal voucher to be used only at Boston Airport and only on the day issued. But by the time it was offered to us all the restaurants were closed, so there was no way to use that offer.

It was costly and difficult to check in. $85 to take a small suitcase with me, carry on or checked and $75 on the return trip, Plus $25 if I didn't check my self in check in $25, because I couldn't do it on the kiosk. Small very uncomfortable seats, waited on the runway for near an hour each way. It was my worst flight to date.

Due to weather, my flight was delayed, further delayed, then canceled. I eventually got through to a support person who helped me find a different route out of MSP, but to get to DIA, they didn't want to, but eventually did help with the connection ticket purchase. But even this replacement flight was delayed time and time again, and I would have missed my connecting flights and I didn't want to get stuck in a layover city, so after 12 hours at the airport with two young boys who were very tired, we just cancelled our plans and spent the week at home, instead of Nana's.

I loved the staff on the plane. So friendly and helpful! However, there was an argument and misunderstanding by the staff and a customer at the gate, and the staff member was being unprofessional. When we arrived in Atlanta, we waited 1.5 hrs for our luggage to arrive. When I asked the airport attendant, they said Frontier had the longest wait for luggage out of any airlines, and that they could not be held responsible for the delay.

I knew going into this that Frontier, being a low cost carrier, would be pretty bare bones and charge for most extras but this was made up for by the fact that the airplane was a reasonably new Airbus, every employee was great and best of all, Everett Washington is an amazing airport - thanks Frontier for flying there!!!

Seats were new and comfortable. Staff was fine. Missed my connection due to weather -which wasn’t their fault- but got no help at all. Gate staff sent me to customer service, which was and stayed unstaffed. Sign with QR code directed me to call or chat. Chat was useless. Call was returned after an hour. No itinerary offered by Frontier could get me home in less than 30 hours. Rebooked with another airline and got a partial refund that came to about 10 percent of what I paid to get home.

The experience was good. No frills but I got there safe and sound and on time.

As every law enforcement agency I could imagine surrounded the plane and we didn’t disembark for 2 hours and then had to stick around for another hour to go get our personal belongings after leaving them behind and being bused away from the plane, it was scary and inconvenient. We were given no information as to why this was happening. Lack of communication with passengers was disappointing.

Frontier Airlines was AWFUL. I was an hour early for my flight and the lady refused to check me in. I had to purchase a whole new ticket with a different airline.

Late, terrible communication, horrible planning of passenger seating until the literal last minute. One of the worst flying experiences of my life. Y'all suck

First of all, we never got on the connecting flight to Denver. They delayed our flight for two hours. If we would have gotten on that flight, we would have been stuck in Denver for 13 hours. So we re- routed our flight for a straight through flight to Oklahoma two days later. THEN, they delayed that flight for two hours. After that we were able to finally get on our flight and come home. Frontier Airlines - one of the worst airlines I have ever been on.

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