Frontier's Economy Bundle includes a carry-on and seat choice, ideal for budget travelers.
Frontier's Premium Bundle offers extra legroom and priority boarding for just $20 more.
Snippets provided in this section are AI-generated based on a summarization of KAYAK-commissioned articles. The articles are presented as-is, for general informational purposes only, and may not be up-to-date. The opinions contained in the articles are original to the author and reflect their authentic experience, which may vary significantly from the experience of others.
Planning a trip from Las Vegas to Denver? 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.
Low season | January |
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High season | August |
Cheapest flight | $28 |
Find which airlines fly direct from Las Vegas Harry Reid Intl Airport to Denver Intl Airport, which days they fly and book direct flights.
Direct departures
Las Vegas Harry Reid Intl to Denver Intl
Monday
Air Canada, Copa Airlines, Frontier, +4 more
Air Canada, Copa Airlines, +5 more
3
4
Tuesday
Air Canada, Copa Airlines, Frontier, +3 more
Air Canada, Copa Airlines, +4 more
2
3
Wednesday
Air Canada, Copa Airlines, Frontier, +4 more
Air Canada, Copa Airlines, +5 more
3
4
Thursday
Air Canada, Copa Airlines, Frontier, +4 more
Air Canada, Copa Airlines, +5 more
3
4
Friday
Air Canada, Copa Airlines, Frontier, +4 more
Air Canada, Copa Airlines, +5 more
3
4
Saturday
Air Canada, Copa Airlines, Frontier, +4 more
Air Canada, Copa Airlines, +5 more
3
4
Sunday
Air Canada, Copa Airlines, Frontier, +4 more
Air Canada, Copa Airlines, +5 more
3
4
Direct returns
Denver Intl to Las Vegas Harry Reid Intl
Monday
Air Canada, Copa Airlines, Frontier, +4 more
Air Canada, Copa Airlines, +5 more
3
4
Tuesday
Air Canada, Copa Airlines, Frontier, +3 more
Air Canada, Copa Airlines, +4 more
2
3
Wednesday
Air Canada, Copa Airlines, Frontier, +4 more
Air Canada, Copa Airlines, +5 more
3
4
Thursday
Air Canada, Copa Airlines, Frontier, +4 more
Air Canada, Copa Airlines, +5 more
3
4
Friday
Air Canada, Copa Airlines, Frontier, +4 more
Air Canada, Copa Airlines, +5 more
3
4
Saturday
Air Canada, Copa Airlines, Frontier, +4 more
Air Canada, Copa Airlines, +5 more
3
4
Sunday
Air Canada, Copa Airlines, Frontier, +4 more
Air Canada, Copa Airlines, +5 more
3
4
WiFi on the flight was not working. Thus, entertainment options were limited.
WiFi on the flight was not working. Thus, entertainment options were limited.
I really like open seating. I hate that I've heard this is going away. This is one of the unique things that makes Southwest my goto choice.
The movies using Southwest WiFi kept pausing and I had to restart multiple times.
For the first time in a long time we had a flawless experience with Southwest. Both flights were early and no mechanical errors at all. We were shocked and pleasantly surprised 😮.
One of the crew performed a hilarious skit to accompany the standard instructions. Passengers enjoyed it so much they applauded at the end!
This was a nicer flight - not fully booked and so we were able to spread out.
It was really nice! I appreciate the gate attendant allowing families with small children to board early on in the process… that was very helpful! The internet service didn’t work with the app I was trying to use even though I paid the $8… other than that it was great! Oh and I should’ve asked for the whole cranberry cocktail can. That cup was about 2 sips…
A bit expensive for the overall service; but the flight departed on time and arrived early.
Board Milian spokesman with pre boarding , not after A group and without my spouse. Total BS, back to Alaska Airlibes I GO. oner 1.2M miles and 900 flights, and every time I fly SWA I regret it, thos will be last time, I only flew SWA but to time requirements fir a Funeral. NEVER AGAIN SWA
I love no assigned seats and bags fly free. If Private Equity gets their way and forces Southwest to change they will be everyone else and I will stop being loyal to them. DON'T CHANGE YOUR BUSINESS MODEL!!!
Have I received a refund yet? They wouldn’t let me on the airplane it took hours. I lost my bag that told me what I needed to do to bring the dogs, and then they kept changing their minds.
Crew was overly aggressive with rules enforcement and not friendly in general.
flight took off over an hour and a half late and there was no beverage service during the flight
One of crew 25 minutes late. Cant underdtand anything on sound system from pilot
Flying in both directions across country the gate designated on my boarding pass was wrong. From w to e across the country the passenger next to me coughed the entire way.
Loved the crew and everything went without a hitch! We took our dog for the first time and I was a little nervous but the crew was fantastic!
Even though we checked in, checked bags, and went through security, I was told at the gate that I hadn’t checked in. I was pulled aside and had to verify my identity yet again. Otherwise, the flight was fine.
Although both planes (flights) had mechanical issue delaying both of my flights, the crew members handled everything with ease. Both flights had the smoothest take off and landing. I opted to upgrade my seat to first class and really lucked out getting the seat at the very front of the plane. Awesome treat to myself. I really enjoyed my flight.
Behind schedule. Lots of time on tarmac. Perhaps unavoidable. Better than crashing!!
Everything smooth (including the landing) and on time. Easy. Thanks.
Great staff. Wifi is terrible. Signing up for skylines is a painstaking process. Had to call customer service just to get my flight itinerary and confirmation sent to me. Consistent delays. A well staffed company that is run so poorly. Upper management needs to be renewed.
The WiFi didn't seem as fast as it normally is
Thank you for not flipping the plane on the run way. You guys get a 5 star rating for the flight!!!
The crew was wonderful and attentive. The seats near exit row were restrictive. Offer healthy snacks please
Delta is a premier airline so my expectations are most always met.
Seats are much much more comfortable than United, which is what I usually fly
Zero updates from the pilots for 30 minutes in the tarmac
Boarding is, as it always is… horrible. Gate lice. Slow moving zones. Too many people with carry ons
I loved having a most black flight crew during Black History Month; rather by design or accident I appreciated the representation. ❤️
This was the second flight this week with flight attendant Marcus I’m not sure if his last name is Lane or Lang but this guy is awesome. He funny, attentive and his service is 5 stars. Marcus makes business travel more enjoyable !
Food choices were very limited. Taste of the dishes was average.
I liked all the informational texts. I always knew where to go and when .
Received an email the night before showing that there would be seatback entertainment on our flight. We get on and there was no seatback entertainment. And then it was a scramble to try to set up the iPads for the kids before takeoff so they could watch something for the four hour flight.
The reason I don’t fly United. No in seat entertainment for a long flight and inconsistent WiFi and entertainment available from my device.
It was a good flight. Nothing comes to mind about how it could have been better. It was a newer plane, seemed like a great upgrade from your older ones. Staff was very good as well.
The food for long haul was poor compared to Singapore airlines economy. Pasta plain with tomato sauce . Singapore airlines give me Hagen dash small ice cream cup it was great. The choices of dinner course Singapore air also much better The crew mostly friendly. The economy seat are as expected.
The plane was clean. The staff was excellent. The flight attendants were very good. Enjoyable flight. Overall. The seats in the back are too small but, will always be.
Flight was 3 1/2 hour delayed with no credit or meal vouchers
late departure due to some unspecified issue with ventilating the cabin. They got it running but it was FREEZING for the whole flight. I asked for a blanket but they didn't provide one. They could not turn up the heat. it was quite miserable.
Liked that we left on time for each flight. Snacks not the best, but we're okay.
The plane failed preflight inspection, so we sat there for 90 mins while they tried to fix it. Ultimately, everything was remedied and we made our connecting flight; instead of a 2 hour layover at the airport, we spent it waiting on the plane.
I loked walking out on the tarmac to board and no first class. I didn't like that they have no snacks or onboard wifi to bide your time.
The seats were extremely hard and uncomfortable. It was disappointing even for a budget airline.
Delayed each time on a round trip with no significant weather interference. Updates to flight times came after the fact. 30 min behind in boarding and board and phone still show an on time departure. Some mysterious extra 300 miles that came so surprising they had to fuel while we were already on board?
Our flight was canceled for no known reason. We weren’t told until we were checking in at 5:00 am. This was after our last flight with Frontier where we sat on the plane for three hours (not an exaggeration) before we took off because of a mechanical issue. We won’t be flying Frontier again.
Allowed me to chose my seat without extra charge (I purchased full-price ticket) and boarding was in group1. Didn't even serve water.
Stuck in Phoenix for two days, not even a hotel voucher offered.
Every day about it was very different all the boarding pass where all wrong l miss flight no refund all crazy
Flight got delayed for 3.5 hours, and for the first hour after the departure time there was no update from the gate folks...
Both flights were delayed. The sizing of bags is crazy. I know it is advertised as a no frills cheaper option but it does feel like you are being extorted for money the whole way-- $20 dollars to talk to a gate agent? Charging for soda a pretzels? I don't think I will be flying Frontier again if I can help it. That said, all the staff were wonderful.
Average price | Average duration | |
---|---|---|
Flights | $811 | 1h 55m |
Buses | $149 | 15h 50m |
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