GRR - DEN

$154 Find Cheap Flights from Grand Rapids 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 Grand Rapids to Denver departing on 7/16. 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 Grand Rapids to Denver, 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 Grand Rapids to Denver, as well as popular online travel agencies
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Everything you should know

Cheapest round-trip
$244
Typical prices: $192-$396
Frontier
Wed 8/19Sun 8/23
GRR - DEN • 1 stop
Cheapest non-stop
$244
Typical prices: $133-$354
Frontier
Sun 9/13Sun 9/20
GRR - DEN • Non-stop
Nonstop flights
You can fly direct with Southwest, United Airlines and Frontier. Average duration is 2h 51m
Direct flights
Direct flights
+1
+1
Direct flights
Direct flights
+1
Top layover airports
Cheapest • Avg $291 (round-trip)
Shortest trip • 5h 30m (one-way)
Insights
Insights
Insights
Insights
When to travel
Cheapest • 28% price drop
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
+1
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KAYAK searches 100s of sites at once to find you the best travel deals.
We hope you love your trip to Denver!
Flight Deals
Booking Insights
Expert advice
Flight Deals

Cheap Flights from Grand Rapids to Denver (GRR-DEN)

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

Wed, Aug 19 - Sun, Aug 23
Frontier Logo
9:13 pm - 7:33 am
GRR
-
DEN
12h 20m
1 stop
Frontier Logo
2:31 pm - 7:06 pm
DEN
-
GRR
2h 35mnonstop
$244Frontier
Thu, Sep 24 - Sun, Sep 27
Frontier Logo
4:37 pm - 5:40 pm
GRR
-
DEN
3h 03mnonstop
Frontier Logo
11:05 am - 3:42 pm
DEN
-
GRR
2h 37mnonstop
$245Frontier
Sat, Aug 1 - Sat, Aug 8
Frontier Logo
8:25 pm - 9:24 pm
GRR
-
DEN
2h 59mnonstop
Frontier Logo
3:16 pm - 7:48 pm
DEN
-
GRR
2h 32mnonstop
$247Frontier
Sat, Aug 15 - Mon, Aug 24
Frontier Logo
8:33 pm - 9:32 pm
GRR
-
DEN
2h 59mnonstop
Frontier Logo
2:31 pm - 7:06 pm
DEN
-
GRR
2h 35mnonstop
$249Frontier
Mon, Aug 31 - Wed, Sep 23
Frontier Logo
8:01 pm - 9:00 pm
GRR
-
DEN
2h 59mnonstop
Frontier Logo
11:59 pm - 9:55 am
DEN
-
GRR
7h 56m
1 stop
$251Frontier
Wed, Aug 19 - Sun, Aug 23
Frontier Logo
9:13 pm - 7:33 am
GRR
-
DEN
12h 20m
1 stop
Frontier Logo
10:43 am - 8:28 pm
DEN
-
GRR
7h 45m
1 stop
$252Frontier
Thu, Aug 13 - Fri, Aug 21
Frontier Logo
8:33 pm - 9:32 pm
GRR
-
DEN
2h 59mnonstop
Frontier Logo
2:31 pm - 7:06 pm
DEN
-
GRR
2h 35mnonstop
$255Frontier
Mon, Aug 17 - Sat, Aug 22
Multiple Airlines Logo
7:00 am - 9:19 am
GRR
-
DEN
28h 19m
2 stops
Multiple Airlines Logo
2:31 pm - 7:06 pm
DEN
-
GRR
2h 35mnonstop
$256Multiple Airlines
Fri, Aug 7 - Sat, Aug 8
Frontier Logo
8:33 pm - 9:32 pm
GRR
-
DEN
2h 59mnonstop
Frontier Logo
3:16 pm - 7:48 pm
DEN
-
GRR
2h 32mnonstop
$257Frontier
Thu, Aug 13 - Mon, Aug 17
Frontier Logo
8:33 pm - 9:32 pm
GRR
-
DEN
2h 59mnonstop
Frontier Logo
3:16 pm - 7:48 pm
DEN
-
GRR
2h 32mnonstop
$258Frontier
Booking Insights

KAYAK's insights & trends for Grand Rapids to Denver flights

Get data-powered insights and trends into flights from Grand Rapids 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 Grand Rapids 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 Grand Rapids to Denver departing in August.

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

The average price of all round-trip flights from Grand Rapids 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 Friday and more expensive on a Sunday. On your return trip to Grand Rapids, you should consider flying back on a Thursday, and avoid Sundays for better deals.

What is the cheapest month to fly from Grand Rapids to Denver?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Grand Rapids 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 Grand Rapids to Denver is October, where tickets cost $246 (return) on average. On the other hand, the most expensive months are June and March, where the average cost of round-trip tickets is $421 and $419 respectively.

Can I save money by flying with a layover from Grand Rapids 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 $413 on average.

How far in advance should I book a flight from Grand Rapids 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 Grand Rapids 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 Grand Rapids to Denver, you should book around 1 week before departure. For the absolute cheapest price, our data suggests you should book 11 weeks before departure.

Expert advice

Expert advice for your flight from Grand Rapids 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 Frontier

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.

Blane Bachelor

Blane Bachelor

Expert on Southwest

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

Good to know

Low seasonJanuary
Cheapest flight$154
Best time to beat the crowds but there is an average 6% increase in price.
Most popular time to fly and prices are also 28% lower on average.
Flight from Grand Rapids to Denver

When to book flights from Grand Rapids to Denver

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

  • Where can I park my car at the Grand Rapids International Airport (GRR)?

    If you want , you can get dropped off curbside at the airport. However, if you drive yourself, you'll find parking options very close to the terminals. There is a long-term parking garage right across from the terminals. A little further away, but still within walking distance, are two parking lots.

  • How can I get from the Denver International Airport (DEN) to my hotel?

    If your hotel is in downtown Denver, you could take the A Line Commuter Train to your hotel. It is about a 37min ride on a comfortable train. You can also take the train to the nearby cities of Colorado Springs, Vail, and Glenwood Springs. If you'd prefer the bus, there is a public bus system that picks up passengers outside of the Jeppesen Terminal. It stops at many locations around the city of Denver including Union Station in the city center.

  • What can I do to stay busy if I have a delayed flight at the Gerald R. Ford International Airport (GRR)?

    The airport has a complimentary business center where you can set up a temporary office. It has comfortable seating, a work surface, and free Wi-Fi. Here you can spend time responding to e-mails, working on a sales presentation, or returning phone calls. If you're traveling with kids, there are a couple of play areas. There are also several places where you can shop including a gift shop with a wide array of Michigan-made items.

  • Does the Denver International Airport (DEN) have a shuttle service?

    Yes, it does. Known as the Automated Guideway Transit System, it takes passengers to the three airport concourses and the Jeppesen Terminal with access to baggage claim and ground transportation.

  • What is the cheapest flight from Grand Rapids to Denver?

    In the last 5 days, the lowest price for a flight from Grand Rapids to Denver was $154 for a one-way ticket and $244 for a round-trip.

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

    No, a passport isn't needed to fly from Grand Rapids to Denver. However, local authorities might ask for an official ID.

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

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

  • Which aircraft models fly most regularly from Grand Rapids to Denver?

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

  • Which airline alliances offer flights from Grand Rapids to Denver?

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

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

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

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

    The two airlines most popular with KAYAK users for flights from Grand Rapids to Denver are Southwest and Delta. With an average price for the route of $394 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 $314 and an overall rating of 7.8.

  • How does KAYAK find such low prices on flights from Grand Rapids 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 Grand Rapids to Denver.

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Denver from Grand Rapids 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 Grand Rapids 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 Grand Rapids with another airline. Booking your flights between Grand Rapids 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 Grand Rapids 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 Grand Rapids 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 Grand Rapids to Denver

  • Looking for a cheap flight? 25% of our users found flights on this route for $200 or less one-way and $346 or less round-trip.
  • Grand Rapids Gerald R. Ford International (GRR) is a medium-sized airport in West Michigan. It has just one terminal and about 16 gates for airplane departures and arrivals. This airport is easy to walk around.
  • The Grand Rapids Airport (GRR) has several amenities that passengers can enjoy including dining options. Before boarding your plane, you can choose to eat at Prospect Hill (a sit-down restaurant that serves breakfast, lunch, and dinner), and/or grab a beer at the Michigan Tap Room. There is also a Starbucks and a bagel shop at this airport.
  • While you're waiting on your plane to leave the Denver International Airport (DEN) you can visit one of the spas for a beauty or wellness service. There is the Colorado Oasis Spa and the A Massage in the Mezzanine.
  • Flights from Grand Rapids Gerald R. Ford International Airport (GRR) to Denver International Airport (DEN) will last just a few hours. You might, however, have to change planes in Chicago, Dallas/Fort Worth, Detroit, or Atlanta. On average, layovers are just an hour or two. However, some layovers could last a lot longer.
  • The Denver International Airport (DEN) has its own hotel. If you have a late incoming flight or if you're delayed, you can book a room here. The Westin Denver International Airport is across from the transportation center and provides numerous amenities including a restaurant/bar, fitness center, a hot tub, and an indoor pool.

Prefer to fly direct from Grand Rapids to Denver?

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

Direct departures

Grand Rapids Gerald R. Ford Intl to Denver Intl

Monday

Frontier,Southwest,United Airlines

Frontier,Southwest, +1 more

Tuesday

Southwest,United Airlines

Southwest,United Airlines

Wednesday

Southwest,United Airlines

Southwest,United Airlines

Thursday

Frontier,Southwest,United Airlines

Frontier,Southwest, +1 more

Friday

Frontier,Southwest,United Airlines

Frontier,Southwest, +1 more

Saturday

Frontier,Southwest,United Airlines

Frontier,Southwest, +1 more

Sunday

Frontier,Southwest,United Airlines

Frontier,Southwest, +1 more

See more direct flights

Direct returns

Denver Intl to Grand Rapids Gerald R. Ford Intl

Monday

Frontier,Southwest,United Airlines

Frontier,Southwest, +1 more

Tuesday

Southwest,United Airlines

Southwest,United Airlines

Wednesday

Southwest,United Airlines

Southwest,United Airlines

Thursday

Frontier,Southwest,United Airlines

Frontier,Southwest, +1 more

Friday

Frontier,Southwest,United Airlines

Frontier,Southwest, +1 more

Saturday

Frontier,Southwest,United Airlines

Frontier,Southwest, +1 more

Sunday

Frontier,Southwest,United Airlines

Frontier,Southwest, +1 more

See more direct flights

Reviews of the top 5 airlines serving from Grand Rapids to Denver

 
See real verified KAYAK customer reviews for airlines flying from Grand Rapids 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 Grand Rapids 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.
7.9
SouthwestOverall score based on 4245 reviews
7.5Entertainment
7.0Food
8.1Boarding
8.0Comfort
8.6Crew
Airline reviews

Crew was rude, flight was late, wifi didn't work, no food, basically nothing about this flight was good.

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

Crew was rude, flight was late, wifi didn't work, no food, basically nothing about this flight was good.

Airline is not very senior friendly. Flights are late, forcing us to run to the connecting flight. Food is awful. Wish they would go back to pretzels and peanuts. During flight, pressurization isn’t quite right and all of our ears get plugged. Everything is nickel and dime, charging for boarding, seat selection and legroom. While a screen at the desk in the gate area says check your roll on bag now for free due to space limitation, the employee at the desk will not check the bag without a $100 fee. Insane.

We waited in the airplane for over 45 min for a southwest employee to make the flight. This cause over half the plane to miss their connecting flight in Denver. When we confronted the desk upon arrival, they told us the only flight they had was the next day leaving at 8:50 pm!!! Or they offered to get us to Burbank or LA, but after that we were on our own to get back to Santa Barbara. I paid for a flight from sba to bna bna to sba. My re entry into mom mode has been 💯 rough because of southwest mistake with my flight. And now I’m leaving to Reno tomorrow for a vballl tournament and just discovered that my leg in Vegas has me and my 3 kids on a stand by flight even though I had booked these ticket last year November!! Do better southwest!

I appreciate the staff who allowed me to board though I arrived a little late! Regarding the assigned seating, I had booked my flight before this change and wasn't aware of the change at the time, and so I didn't select a seat at booking as I didn't realize it was relevant. Better communication about the change would have been helpful for preparing.

Sacrament staff are always polite and helpful. Airport is easy to maneuver and boarding is straightforward.

Near 4 hour flight with only 1 service. Had to use call button to request water. Internet and power not working until into flight. Internet would stop working during flight.

The Southwest employees (all two of them) were very nice and cheerful despite the fact the line to self-check a bag (simply drop it off) was hundreds of people long. Thank God I arrived early to the airport because I stood in this line for at least an hour. Once on the flight that had been delayed by an hour, we had no Wi-Fi and thus no entertainment. Finally, I hope the investor strong arm tactics against Southwest pay off in a short-term windfall to your C-Suite because the rest of you are screwed. I have been a faithful Southwest customer for 15 years due to everything you just got rid of. I'm flying to Idaho and Washington in October, both places I used to simply book with Southwest without a second thought now with Frontier (Washington) and United (Idaho) because they offer everything the "new" Southwest does but cheaper and at better times, destinations, etc. This really makes me sad...

Flights delayed by 4-6 hours. Boarding was a mess and unclear. Bags were not at arrival airport and had never even been put on the plane. No idea when I’ll get them. Don’t fly into Denver!

We sat on the plane on the tarmac for 4 hours.

After a 3 hour layover in Denver my flight was delayed over 5 hours! No explanation; no assistance; no offer to provide compensation; no one at Southwest was willing to offer any assistance. 8 hours in the Denver airport - ridiculous!

Should never have had to go to Detroit from Orlando back to Tennessee!

Smooth flight. Left on time, and got in 15 minutes early. Onboard video was great

No wheel chair as requested at Atlanta arrival on first flight.

Flight was canceled, and no effort was made to help with rebooking, no hotel vouchers, no car transportation and minimal food voucher and most places for food were closed by the time the voucher was given. Waited for 3 hours for bags. Simply the worst travel experience I have ever had

My flight was 6 pm 6/6. Every hour they delayed it again - air condition issues then no pilot then the crew had worked too many hours and cancelled the flight at 11 pm. Sent customers to NJ a 45 minutes uber ride to a hotel. Had to be back by 5 am for a 7 am flight and again no pilot etc with another three hours of delays.

Delta flight was on time, seats were comfortable, and crew was nice.

Airline lost my luggage and set me back a day worth of travel due to having to stay in Denver to wait on my luggage

I'm a larger, athletic guy (6'2", 260lbs powerlifter) and I found the seats incredibly uncomfortable with minimal leg room, especially in a window seat. Now, I full understand that being smaller may change my view but even if I was 80lbs less, my legs would be the same size and I was sandwiched between my seat and the seat in front of me.

The helpful attitude of the staff, and being a wheelchair passenger everyone was helpful and understanding. The trip was made comfortable by the upgraded seat which was given without my request, that was a great surprise. Thank you Delta.

The flight attendants were friendly and seemed to like their jobs. I am not a high maintenance person, but they seemed to respond to people's needs and requests in a timely fashion with a smile.. I appreciate the benefits of complimentary snacks and beverages, as well as the relatively inexpensive checked baggage fee. (Although I would like it better if it were free! :) ) The only improvement that could be made to make the boarding process more efficient is to board the plane from the back. The alternative would be to board people with only a personal item first. This would reduce the wait time while others are stowing their baggage.

Checking bag at terminal was horrible. No agents to check us in and only 1 kiosk working. Boarding went ok. Crew onboard was very scattered rained. Missed our row while serving and then didn’t see them hardly again.

The entertainment is a bit limited, it would be better if they added some games to play besides the movies and tv shows. But the seats are comfortable and the crew is polite

Food was great. Staff was phenomenal. Seats were a bit hard and could use a lot more entertainment options as far as movies to choose from. WiFi was good. Overall great trip.

Read the fine print. This was my flight home. I booked my flight for the quickest way home. Had a carry-on and a personal item. Same as my outbound flight. Apparently I needed to pre-pay extra for my carry-on. When I checked in, I was told that I had to check it. I said I’ll pay for it, and was told that this wasn’t an option anymore. They said I still had to pay $50 to check my carry-on. I told them I’ll pay whatever to just carry it in as intended. I was not allowed, so eventually I paid $50 to check my carry-on under a plane that was half full, with overhead compartments that were even less full. My white carry-on suitcase was practically destroyed getting from Idaho falls to Denver to Orange County. The low price air fair was a bait and switch. Got me to the gate, made me pay extra, then didn’t even allow me to pay for a carry on. Not to mention that I paid the $8 for WiFi that didn’t work. All to get my suitcase destroyed. I don’t think I’m going to even keep my Untied mileage plus membership and card. Apparently, membership does not have its privileges for this one.

I flew from Santa Fe to Denver to catch a flight to London and the transfer of my luggage on arrival at Denver to the London flight worked perfectly. The crew on the ground and on board for the London flight were so friendly and efficient.

Late- that’s what United does best. Missed my connection, rebooked to a flight 17 hours later and had to spend $500 on a hotel. What did I get? A $15 meal voucher. What can you get in an airport for $15. I hate United so much.

It was good overall except from Omaha to Denver when flight a was a repeatedly delayed apparently due to some issue at Denver. Communications could have been handled better. I had to board then deboard with luggage and board again

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.

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

Staff friendly and app worked really well. Modest delays were frustrating

Everything was delayed and the staff sent me to the wrong gate, causing me to miss one of my flights. I arrived at my destination 6 hours later than I was supposed to.

On the return flight, arriving in Denver we sat on the tarmac in Denver for over 20 minutes.

The flight was fine. It's the satellite terminal that supports American eagle flights is what sucks. There is only one food option and everything there is way overpriced. I mean I know it's airport pricing, but it's even crazier than that. I bought a sandwich in a plastic container for $18.

Don't change gate multiple times make people run across the airport. Announce delays in a timely manner. Have maintenance crew ready. Don't delay and keep passengers on the plane for 3 hrs. on tarmac.

Our bags took a long time to get unloaded once we landed.

Terrible. The flight was delayed two hours due to weather. Then when we got on the plane, the first pilot ended up timing out and we had to wait for a second pilot. Second pile came on board and we tax it out. Had to return back to the gate because of an unruly passenger. Then the copilot timed out. Had to wait for new copilot. Also had to wait for maintenance to check for fuel. Then found out the second pilot timed out and we had to wait for a third pilot. Was ready to go and then needed maintenance again for another issue. In the end, it was 2 o’clock in the morning when they announced that the flight couldn’t go because the third pilot and the second copilot had timed out.

One of the best flights I’ve had. So smooth.

Because I can’t stand very long in one place, I was allowed to reword.

Flight to Phoenix was delayed 1 hour and was not weather related. Flight Denver was delayed 2.5 hours and again was not weather related as the plane came from San Francisco.

Flight was late because our pilots were late. Also the air vents above our seat didn't work.

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

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

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

More inflight connection. And leg space is horrible. And the paying for baggage I'd ridiculous!!!

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 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!!!

This was one of the first frontier airline flights this spring that wasn't delayed. It actually left on time. Some of the flight crew did not look happy, they didn't smile when the passengers were boarding or getting off the plane, and the passengers initiated greetings, not the staff. To me this was an odd experience to have with any flight/airline. I had a bad experience booking this flight. The price didn't solidify until late hours into the night. Ever time I purchased the ticket, I either received a denial email or an error because the price has changed, but it was never reflected on the flyfrontier or kayak websites until way after midnight on the date of travel. This caused me anxiety and irritation with the websites. Then I noticed a mishap with my name on my voucher as I went to check in, it was incorrect. When I proceeded to correct it, Frontier had no easy, let alone free, way to remedy it. I couldn't correct my name without a $75 charge, I couldn't cancel my voucher to repurchase it with the correct name without a $100 charge, because it was too close to departure. Then calling frontier was nearly impossible to remedy the situation with a human. It's already difficult to want to choose frontier because of all the upcharges, but you feel kinda trapped into doing so because it's the more affordable airline.

Xmas Day- Flights were on time for departure and arrival, baggage check in and boarding process were hassle free, baggage also arrived without any delay. Satisfied customer on this journey.

We’ve been sitting waiting for a gate for 30 minutes without explanation. Several of the older flight attendants are very rude.

Everything you need to know for your flight from Grand Rapids to Denver

Information on your arrival and departure airports