DEN - MSO

$88 Find Cheap Flights from Denver to Missoula

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 Missoula departing on 2/5. 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 Missoula

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

Cheapest round-trip
$199
Overall average: $292
Hawaiian Airlines
Tue 2/17Tue 2/24
DEN - MSO • 1 stop
Cheapest non-stop
$209
Typical prices: $198-$372
United Airlines
Wed 6/17Mon 6/22
DEN - MSO • Non-stop
Our travelers' advice
AI-powered summary based on content written by travel experts. AI can make mistakes.
Frontier's Premium Bundle adds legroom and priority.
United's Economy Plus provides 6 inches more legroom.
Expert advice
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Video guide: How to find cheap flights to Missoula
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Top airlines
Alaska Airlines
Cheapest • from $209 (round-trip)
Alaska Airlines
Best reviews • 8.0 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
When to book
5 weeks
in advance
Our data shows that travelers who book at least 5 weeks in advance save around 16% compared to booking last minute.
Insights
Insights
Insights
Insights
When to travel
January
Cheapest • 9% price drop
July
Most popular
Good to know
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+1
+1
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+1
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We hope you love your trip to Missoula!
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Flight Deals

Cheap Flights from Denver to Missoula (DEN-MSO)

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

Tue, Feb 17 - Tue, Feb 24
Hawaiian Airlines Logo
7:00 am - 12:21 pm
DEN
-
MSO
5h 21m1 stop
Hawaiian Airlines Logo
1:39 pm - 9:23 pm
MSO
-
DEN
7h 44m1 stop
$199Hawaiian Airlines
Sat, Jan 31 - Tue, Feb 3
Alaska Airlines Logo
7:00 am - 12:23 pm
DEN
-
MSO
5h 23m1 stop
Alaska Airlines Logo
4:20 pm - 11:35 pm
MSO
-
DEN
7h 15m1 stop
$209Alaska Airlines
Wed, Mar 4 - Sat, Mar 7
Alaska Airlines Logo
12:34 pm - 11:59 pm
DEN
-
MSO
11h 25m1 stop
Alaska Airlines Logo
1:39 pm - 6:56 pm
MSO
-
DEN
5h 17m1 stop
$219Alaska Airlines
Fri, Feb 13 - Mon, Feb 16
United Airlines Logo
11:21 am - 1:32 pm
DEN
-
MSO
2h 11mnonstop
United Airlines Logo
6:15 am - 8:28 am
MSO
-
DEN
2h 13mnonstop
$220United Airlines
Thu, Jan 29 - Sun, Feb 1
Delta Logo
7:00 am - 12:35 pm
DEN
-
MSO
5h 35m1 stop
Delta Logo
5:00 am - 9:38 am
MSO
-
DEN
4h 38m1 stop
$229Delta
Sun, Feb 1 - Sun, Feb 8
Multiple Airlines Logo
10:29 pm - 10:03 am
DEN
-
MSO
11h 34m1 stop
Multiple Airlines Logo
7:23 pm - 10:42 am
MSO
-
DEN
39h 19m2 stops
$242Multiple Airlines
Thu, Jun 25 - Tue, Jun 30
United Airlines Logo
7:18 pm - 9:26 pm
DEN
-
MSO
2h 08mnonstop
United Airlines Logo
2:27 pm - 4:29 pm
MSO
-
DEN
2h 02mnonstop
$246United Airlines
Sat, Jan 24 - Sat, Jan 31
Alaska Airlines Logo
7:00 am - 12:23 pm
DEN
-
MSO
5h 23m1 stop
Alaska Airlines Logo
1:03 pm - 11:35 pm
MSO
-
DEN
10h 32m2 stops
$251Alaska Airlines
Wed, Mar 4 - Sat, Mar 7
Alaska Airlines Logo
11:38 am - 11:59 pm
DEN
-
MSO
12h 21m2 stops
Alaska Airlines Logo
1:39 pm - 6:56 pm
MSO
-
DEN
5h 17m1 stop
$261Alaska Airlines
Sat, Jan 17 - Wed, Jan 21
Alaska Airlines Logo
7:00 am - 3:31 pm
DEN
-
MSO
8h 31m1 stop
Alaska Airlines Logo
2:03 pm - 11:35 pm
MSO
-
DEN
9h 32m1 stop
$264Alaska Airlines
Booking Insights

KAYAK's insights & trends for Denver to Missoula flights

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

Find cheap flights to Missoula
Find cheap flights to Missoula

Planning a trip from Denver to Missoula? KAYAK’s data-powered insights will help you find cheap flights. Learn the best time to fly, how early to book your ticket, and other tips to secure great prices.

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

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

When flying from Denver to Missoula, you should consider leaving on a Monday and avoid Sundays if you are looking for the best rates. For your return to Denver, you’ll find the best rates on Fridays and the most expensive ones on Sundays.

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

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Denver to Missoula, 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 Missoula is January, where tickets cost $279 (return) on average. On the other hand, the most expensive months are September and December, where the average cost of round-trip tickets is $349 and $336 respectively.

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

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 $279 on average.

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

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 Missoula, 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 Missoula, you should book around 5 weeks before departure, which saves you about 16% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 23 weeks before departure.

Expert advice

Expert advice for your flight from Denver to Missoula

 
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.
Airlines
United Airlines

Economy Plus offers 6 inches more legroom than standard economy, ideal for added comfort.


Purchase Priority Boarding to ensure overhead bin space for your carry-on.

Frontier

Consider the Premium Bundle for extra legroom and priority boarding at a small additional cost.


Avoid Basic Fare to prevent middle seats; Economy Bundle offers free seat selection and carry-on.

Our travel experts
Stefanie Waldek

Stefanie Waldek

Expert on United Airlines and Frontier

Stefanie Waldek

Stefanie Waldek

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.

Read more

Good to know

Low seasonJanuary
Cheapest flight$88
Best time to beat the crowds with an average 10% drop in price.
Most popular time to fly with an average 2% increase in price.
Flight from Denver to Missoula

When to book flights from Denver to Missoula

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

  • When I arrive at the airport in Missoula, are there any good public transportation options to get me from the airport to the center of Missoula?

    A great option for public transportation from the airport to the center of Missoula is to take one of the buses provided by Mountain Line that makes the trip to the Mountain Line transfer center in downtown Missoula in about 25min.

  • If I would like to stay at a hotel that is adjacent to the Missoula Airport (MSO) are there any options?

    You have a couple of great options for hotels right adjacent to the airport, including the Wingate by Wyndham Missoula Airport and the StoneCreek Lodge, which are both right across the street from the airport terminal building.

  • If I would like to rent a car when I arrive at the Missoula airport, where will I find rental cars?

    There are seven different major rental car companies that offer service at the airport. Once you arrive on your flight to Missoula, you will find all of these companies have customer service desks in the arrivals hall of the terminal building right next to the baggage claim area.

  • Are there any services available at the Missoula Airport for me to get refreshed after my flight from Denver?

    The Missoula Aiport offers massage chairs that travelers will find both before and after security checkpoints, which make a great place to take a few minutes to relax and unwind after a sometimes stressful flight.

  • What is the cheapest flight from Denver to Missoula?

    In the last 3 days, the lowest price for a flight from Denver to Missoula was $88 for a one-way ticket and $209 for a round-trip.

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

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

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

    Denver airport is called Denver Intl and the only airport in Missoula is Missoula Johnson-Bell Field.

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

    Alaska Airlines, and JetBlue offer inflight Wi-Fi service on the Denver to Missoula flight route.

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

    The Boeing 737-800 is the aircraft model that flies most regularly on the Denver to Missoula flight route.

  • Which airline alliances offer flights from Denver to Missoula?

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

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

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

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

    The two airlines most popular with KAYAK users for flights from Denver to Missoula are Alaska Airlines and Delta. With an average price for the route of $243 and an overall rating of 8.0, Alaska Airlines is the most popular choice. Delta is also a great choice for the route, with an average price of $268 and an overall rating of 7.9.

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

    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 Missoula.

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

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

    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 Missoula with an airline and back to Denver with another airline. Booking your flights between Denver and MSO 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 Missoula?

    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 Missoula 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 Missoula

  • Looking for a cheap flight? 25% of our users found flights on this route for $186 or less one-way and $268 or less round-trip.
  • If you are looking for a quick way to get from the downtown Denver area to the Denver International Airport (DEN), consider taking the A Line commuter train. This train makes the trip from Union Station in downtown Denver to the airport and around 23min.
  • If you plan on driving yourself to the Denver International Airport and you would like to find the most economical solution consider one of the off-site lots at the airport. These parking lots offer 24h shuttle service to and from the airport, making them a convenient and cost-effective way to park your car.
  • For those that would love a great place to wait for flights to Missoula from the Denver International Airport, the airport offers lounges from Delta Airlines, American Airlines, and United Airlines, plus there is a Centurion Lounge at the airport.
  • If you are going to be taking a pet with you on your flight to Missoula, the Denver International Airport offers pet relief areas in a number of locations at the airport. All of these indoor pet relief areas feature artificial turf, good drainage, and artificial rocks. There is also a Paradise 4 Paws location at the airport that features things like pools for dogs.
  • Instead of hauling your own bags at the Denver International Airport, a great alternative is to utilize the airport's free baggage check service. You can use this service for domestic flights such as those to Missoula, and you only need to make sure you arrive at least 90min before your flight.

Prefer to fly direct from Denver to Missoula?

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

Direct departures

Denver Intl to Missoula Johnson-Bell Field

Monday

United Airlines

United Airlines

Tuesday

United Airlines

United Airlines

Wednesday

United Airlines

United Airlines

Thursday

United Airlines

United Airlines

Friday

United Airlines

United Airlines

Saturday

United Airlines

United Airlines

Sunday

United Airlines

United Airlines

See more direct flights

Direct returns

Missoula Johnson-Bell Field to Denver Intl

Monday

United Airlines

United Airlines

Tuesday

United Airlines

United Airlines

Wednesday

United Airlines

United Airlines

Thursday

United Airlines

United Airlines

Friday

United Airlines

United Airlines

Saturday

United Airlines

United Airlines

Sunday

United Airlines

United Airlines

See more direct flights

Reviews of the top 4 airlines serving from Denver to Missoula

 
See real verified KAYAK customer reviews for airlines flying from Denver to Missoula. 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 Missoula? 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
Alaska AirlinesOverall score based on 11645 reviews
8.5Crew
7.8Comfort
7.0Entertainment
7.1Food
8.1Boarding
Airline reviews

I really hate the seat assignment at the gate. I understand it is so families can sit together but it caused me and others a lot of unnecessary stress and confusion, enough for me to not fly Alaska again. The app is so awful that it did not even update my seat assignment on the boarding pass but sent me a notification of my seat... it showed in Apple Wallet but not in the Alaska app itself. That only made the stress worse. I think most people like myself prefer to know where they are seated at check in 24 hours before so they don't have to anxiously hang out at the gate the entire time. This is not a good use of your agents time either to be dealing with all of us asking where we are sitting. You should automatically assign the multiple seat purchases to be together before they check in and fill us solo travelers in those gaps as we check in.

4.0 OkayAnonymous, Jan 2026
ORD - SAN
Read more Alaska Airlines reviews

I really hate the seat assignment at the gate. I understand it is so families can sit together but it caused me and others a lot of unnecessary stress and confusion, enough for me to not fly Alaska again. The app is so awful that it did not even update my seat assignment on the boarding pass but sent me a notification of my seat... it showed in Apple Wallet but not in the Alaska app itself. That only made the stress worse. I think most people like myself prefer to know where they are seated at check in 24 hours before so they don't have to anxiously hang out at the gate the entire time. This is not a good use of your agents time either to be dealing with all of us asking where we are sitting. You should automatically assign the multiple seat purchases to be together before they check in and fill us solo travelers in those gaps as we check in.

My Alaska Airlines return flight, although worked out in the end, didn't start off well. The initial plane that my family and I boarded was grounded because of a mishap that happened to one of the engines and everyone on board had to disembark the plane. Thankfully we were accommodated with a another plane but our initial flight was supposed to have departed at 11 pm San Diego time for Orlando but instead we ended up leaving at 1:40 am San Diego time. All Passengers were informed that part of the delay was that the plane had to be inspected by the captain, the food had to be stocked and the individuals responsible for fueling the plane left for the evening and had to be summoned to return to fill up our. The Alaska Airlines crew at the airport and on the plane were awesome and apologetic. I know that the crew wasn't responsible for the mishap of the engine but I think in the future the airline should offer a complimentary drink or (1) item of food other than pretzels, nuts or chips to all passengers since we're not to blame for the extreme set backs. The airline in general is good and I recommend to all flyers.

Alaska Airlines have beautiful new airplanes that have comfortable seats but tight for a tall person like myself. They do provide upgrades to flyers but at a $140 cost. My flight went smooth and prompt as well as without a hitch. The flight crew were warm and friendly as well as very attentive. I'd recommend this airline over Frontier airlines any day.

I like them since I live in Alaska and I don't have much choice

My first flight was delayed by over an hour, luckily I had Long layovers on an itinerary from hell, because when you book a Saver ticket, they change your itinerary and make it many stops and long layovers, and there were still delays. On the return flight there was a delay in the first leg, Orlando to Seattle, so I got up really early for nothing, and on the last leg Anchorage to Fairbanks, it was over 2 hours late taking off! I didn't get home until 1 :30am! By the time I got my luggage, the flight landed at 1 am. For the departure day, I was up from 6am to when I arrived the next day at 6am in Orlando. So I was up for 22 hours, 3:15am to almost 2 am the next day. On the return day. The moral of the story is, DON"T EVER BUY SAVER TICKETS! You can't even upgrade your seat when you do that and then at the last minute they want Big bucks to upgrade the day before leaving.

I had the worst seat neighbors thry literally snored so loud and the man next to me man spreaded the whole time i couldnt sleep

Service was great! 👍 Seats were small and absolutely not enough leg and feet room!!!

Alaska is a great airline. Unfortunately, our flight was canceled in a really late hour and it caused a lot of hardship in my travel process.

Did not have In flight service on my round trip due to turbulence. I did not partake in In flight entertainment. Flight descending into LAX was very turbulent. It would have been nice if the pilot communicated with us during that rough descent into LAX to ease the minds of some of us more nervous flyers.

It was ok. First time flying with them to Boise Won’t do again

I really liked the legroom. I am 6’4”.a at For some reason our seats were not together and using the app to fix it didn’t work. Passengers were nice enough to move for us but you should absolutely ensure a parent sits with their child.

Late delayed flight delays boarding and delays leaving and delays on arrival too. Cramped plane no room no food.

DTW line is too long. The flights from DTW to BWI are always delayed for unknown reasons.

Delta canceled our flight and we had to scramble to find another airline to get home. Phoenix is not a delta hub so they didn’t have another plane. It would have been a red eye though Salt Lake City. Getting in at 5am. No bueno.

This flight was no comparison to our prior flight. I'm thinking it all has to do with the age of the aircraft.

This flight was a first class choice and left much to be desired. Seat backs on seats were falling apart and torn. Seats actually didn't come to a "full & upright position". Pull out table was sprung. Not any significant leg room. All in all we were on an obviously older plane and felt overcharged for what we received as first class.

Flight was delayed several times. At one point, they "pulled back" 15 minutes from the delayed boarding and sent a text saying we would board sooner than previously advised. The flight then was delayed again. And when we boarded, there was an unspecified technical issue which had us waiting in the plane for about an hour.

Delta is a good airline. I've never had an issue with Delta. I'll continue to fly with them until they show me that I shouldn't.

The only thing nice I can say is the flight crew was really nice and apologetic about the situation. They shared as much information as they had and advised us on what we could do about missing connecting flights. The boarding process was so slow. The gate agent was working by herself and should have had someone working with her. It took almost an hour to board because she was trying to board a full flight of people and provide customer service to everyone who was flying standby and/or had questions. It was really chaotic. This didn't help the fact that we were delayed and folks were missing connections the longer it took.

The gate attendants and the crew were terrible. Because of high winds, they needed to carry more fuel, so they had to get volunteers to take the next flight at 6 am the next day. They did a terrible job of it - our flight ended up taking off just under 3 hours of the scheduled time. I hope to never fly Delta again.

Sitting on the runway after we land for almost two hours! Not sure if we should blame United or Just Dumpy Vance.

Flight was late - I was downgraded from first class to coach

Crew seemed a bit cranky. No seatback screens. But boarding was efficient and on time and we arrived early.

See previous note about the passenger in Denver who threw my husband's bag out of the overhead bin in order to maker room for his own. And the flight attendant back up the new passenger.

Terrible. They wouldn't allow me on my flight on the 14th..

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

Great experience…left a bit behind schedule but made up fir that in the air and landed 10 minutes early 😁

Electric plugs didn't work. Entertainment system wasn't working

The design of the light switch on the arm rest is ridiculous.

The gate attendant let me walk right by her with a bag too big for the overhead compartment

It was ok. It was expensive to check 2 bags ($75.00 per bag), and then it took a long time to wait for shuttle to take us from one terminal to the terminal where the plane was taking off at LAX. And all of this for a flight where we had to pay for any food or drink that was not water.

It didn’t happen. I booked it and then was told it wasn’t available and then forced to pay far higher prices for a worse option

A 630departure flight Delayed 6hours! They changed my gate, I moved to the new gate. Had our flight on the screen for 12noon departure. I go get above to eat, check screen again and the flight was gone, no notice no announcement, nothing!! They sent my bag on the flight I wasn’t on, got it back to me 3days later. Thank goodness they did refund my money but I will NEVER fly them again.

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.

Plane and crew on board were fine. Everything else was terrible.

The third party booking with cheapflightsfares was awful. Kayak should NOT partner with them. They sold me a bundle including seat selection and carry-on, but did not book the carry-ons with Frontier, so I’m out of pocket for $414 more while I await resolution.

This company socks. It's fraud. They canceled our flight yesterday, and today we were late because of a really long line at the check in bag. At the rebook station, there was ton of people. The workers were all rude. I am gonna make a report to FTC.

One of the worst travel experiences I've had. Had a flight scheduled with CVG to RSW on VLSWQX this morning departing at 5:30. Two individuals at the gate and one was in training. Not her fault but she didn't have the ability to check people in resulting in at least 15 families that didn't make it on the plane because they weren't checked into the system in time. When arriving at the airport to drop off our prepaid checked bags, the bag drop off agent asked if we could check our bags at the gate because of the long line. We said no problem so arrived at the gate by 5:00. They told those people that had previously paid for checked bags to stand off to the side while they let others that either didn't have a checked bag or their bag was already on the plan through. Realizing the gate workers had an issue, they either called for help or this lady showed up late for work as she didn't arrive until 5:15. The worker who had been there training the other individual and working diligently to make sure all passengers got on board. He even said that at one point all people that are currently in line are fine but asked the person in training to stand outside the ticketing area around 5:15 to notify any late travels that the flight was in boarding process and they arrrived too late. At that point, we're sill standing off to the side with our pre-paid checked bags patiently waiting. When the new lady arrived she couldn't have been more rude. It was an awful seen. Essentially they had asked for those without an assigned seat to board last, those with pre-paid checked bag stand off to the site and any traveling with a larger items that needed to be checked at the gate (such as a stroller), wait on the side. They realized that the flight needed to leave on time so the gate attendant shut the gate. So anyone without a seat assignment, those that had pre-checked bags, and the worst one I saw was a mother with two infant children was in line with use because she was asked to stand to the side because her stroller. When they shut the door to the plan they told her she could no longer get on. Her checked bags were already on the plane with her car keys in them, and the lady told her we couldn't accept anyone else on because the door was shut. She didn't even have a way to get home from the airport. Truely evil behavior. I've flown Frontier enough to know customer service is not a top priority in the company's mission, but this was an all-time low. I'm sending this after an 18 hour drive that our family just completed to Bonita Springs . I felt really bad for the lady being trained and the other individual trying to help, but when the new lady came to the gate she was truly one of the rudest individuals I've ever met. One lady had been there since 4am but because she didn't have an assigned seat they wouldn't let her on the plan.

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.

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

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

Information on your arrival and departure airports