Frontier's Economy Bundle includes a carry-on bag and Standard seat choice.
Avoid Basic Fare to prevent middle seat assignments; consider Economy Bundle for seat selection.
Planning a trip from Denver to Las Vegas? 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.
When planning a trip from Denver to Las Vegas, there are several ways to potentially save money on your flight. Generally, Tuesday is the cheapest day of the week to fly, while September is the cheapest month.
Book Early: Prices tend to be lower when booking at least two weeks in advance.
Choose Frontier: Frontier Airlines typically offers the cheapest flights for this route.
Direct Flights: Direct flights are more expensive, consider flights with layovers to save money.
Fly Tuesday: Tuesday is generally the cheapest day to fly.
Travel in September: September is typically the cheapest month to fly.
This feature is powered by ChatGPT: an OpenAI-developed artificial intelligence model trained with KAYAK proprietary data and third-party data not verified by KAYAK.
Low season | June |
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High season | October |
Cheapest flight | $56 |
Direct departures
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, +3 more
Air Canada, Copa Airlines, +4 more
2
3
Direct returns
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, +3 more
Air Canada, Copa Airlines, +4 more
2
3
No issues at all other than the seats. Of all the airlines I've flown on in my life (this was my first with Alaska Airlines), these were significantly the most uncomfortable seats I've had - more so than Spirit Airlines. I'm a relatively young guy and mostly fit but oof, i was aching in muscles I didn't even know I had. Not sure if the seats are standard for the plane (if it even works like that) or if the choice to use cardboard as cushion and 90 degree angle back rests was a decision, but it wouldn't honestly make me think twice about flying with them again. Other than that - perfect flight. It was quick, crew was nice, ride was smooth so all things considered I appreciate the last minute availability offered after a sudden relocation on my part.
No issues at all other than the seats. Of all the airlines I've flown on in my life (this was my first with Alaska Airlines), these were significantly the most uncomfortable seats I've had - more so than Spirit Airlines. I'm a relatively young guy and mostly fit but oof, i was aching in muscles I didn't even know I had. Not sure if the seats are standard for the plane (if it even works like that) or if the choice to use cardboard as cushion and 90 degree angle back rests was a decision, but it wouldn't honestly make me think twice about flying with them again. Other than that - perfect flight. It was quick, crew was nice, ride was smooth so all things considered I appreciate the last minute availability offered after a sudden relocation on my part.
Seats extremely uncomfortable, no entertainment, no snacks, and when boarding, half of the passengers needed to check in the carry on luggage without any explanation.
I payed for a window seat and was assigned the middle seat. The window seat just so happened to be open. Which made the ride alot more comfortable. I think I should get what I pay for without having to buy extra fight protection. If I pay for it first that should be the end of that seats history because it's now spoken for. That alone might make me think twice about using this again
Jammed up security line. Security personnel excellent but facility is really cramped and lines long. Alaska Airlines was excellent.
I liked the crew. There was no food flight to short
Short flight was fine, but no entertainment and bathrooms broken.
We were flying 1st class for a special occasion. This was a Hawaiian airlines flight. It was exceptional. Very comfortable seats and space. Extremely attentive crew. Food was great for airline food. They provided tablets to watch and full headphones to listen. This was the best airline experience I have had in decades.
All went smoothly. Only one delay departing Seattle of around 30 minutes.
We were in 1st class. Haven’t flown 1st class in over 35 years. This was special trip. 30yr anniversary and family travel. Food was good for airline food. Crew was very attentive.i expected easier movie access. Had to use own device. Second leg with Hawaiian airlines was exceptional in every way.
I like the friendliness of the staff. The food choices were OK. I wish there was more options. The entertainment through the movie portal was alright.
WiFi did not work. For as outrageous as these flights cost, when they’re advertised with certain services/ features they should be in working order
Flight wasn’t even full, but too many carry-ons caused us to run out of bin space. New bag fee has folks who would usually check their bags carrying on. Watching Southwest morph into Spirit/Frontier is so sad to watch
I would have liked to arrive on time - not 5 hours late!
1.5 hour delay, poor service, no compassion from the crew. Terrible experience
Very good. Sad to learn Southwest is going start to charge for bags
Our flight was diverted from being a non-stop to getting within 150 miles and requiring another plane. We heard 4 or 5 different versions from SW as to why we had to stop, then wait for a replacement plane. Five hour delay, weather did not come up as a single excuse.... communication was not clear and well explained. No one really took charge!
Great flight staff. Ease of boarding. Overall, very uneventful and easy trip.
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.
We had a nice flight. Boarding was easy, our seats were comfortable and the on board service was pleasant.
It seems as though the provisions are even less. Although SWA used to be an economy Airline, that isn't really the case anymore. I paid over $700. for a round trip to Denver and I could have flown just about any airline for the price. The drinks are now in a 6-ounce cup and with ice I'm sure a can would fill more than 2 cups. However, I am very proud of SWA for using paper rather than continuing to contribute to the millions of plastic cups being used each day. I've thought of this fr many years and am so glad to see it come to fruition, if not by only SWA so far.
Mechanic delay in addition to a 2 hour change in takeoff time was frustrating.
Delayed due to thunderstorms and no in-flight service due to rough weather — both of which are out of Delta’s control. Flight was good overall.
The flight attendants in SLC were rude. I arrived 40 minutes early to gate. Ticket said I needed check in for seat assignments and tried check in and attendants said they weren’t doing it. And proceeded to never call me to give me a ticket so when time to board I received the very last seat. Please relay to employees to do their job better..,
On this flight I felt the food offering was not as complete as on previous flights. The tomato salad was a bit off and there was nothing additional such a bread or butter. The breakfast was only one option, so you either ate what they had or ate nothing. The crew was efficient, but most seemed frustrated throughout the flight. The flight arrived early and was obstacle-free, so I’m overall quite happy, but the shine in the rest of the experience just wasn’t there.
The seats got pretty uncomfortable pretty fast. The armrests are bigger than on other planes, so I had less room in the actual seat. My butt hurt by the end of the flight. :/ comfort was the primary issue. The crew were fantastic!
I believe that a four-hour trip should have a meal. Delta had none.
Great flight with Delta! Boarding was quick and easy, the amenities were solid, and the plane was in great shape. The flight attendants had a fun, lively energy while staying professional. All in all, a smooth trip — even managed to catch up on some rest. Thanks, Delta!
I was uncomfortably cold on the plane. Other than that it was uneventful and therefore as enjoyable as a plane ride can be.
There was supposed to be a meal served, but there wasn’t and the major toilet was out of order
They made us board and then deboard due to mechanical issue which delayed the departure by almost 2 hours and we barely made our connecting flight. These quality checks should've been done before boarding not after.
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
My priority checked bag was not loaded on the flight. I had to sit in baggage claim in Las Vegas for 2 1/2 hours waiting for the next flight. All baggage staff were very helpful, tracking showed it as scanned for loading. Nobody told me why it wasn't on my flight.
First class felt like economy, seats were horrible, food was horrible, staff inattentive
Overall, it was a good experience. Boarding was good and there was plenty of overhead bin space for everyone’s carryons (even when we boarded toward the end). Only improvement would be to offer trash service more regularly.
David went above and beyond to make our flight the best that it could be
No food service almost missed because of first flight delays
What I expected, nickeled and dined and a frontier flight attendant loudly complained about her job and lack of communication as she headed to the gate on her cell phone. Not professional.
Boarding in Orlando was not good. Giant mob at the gate, should have been lines.
The ticketing agents were rude but then we had a great gate agent very nice we had to ride a buss out to where the plane was parked but it was in some back corner of the airport when we got to the plane the captain who was great btw was cleaning the plane because the same rude ticketing agent told them they we not contracted to vacuum the plane. The ride to las Vegas was fine We had a connecting flight to Dallas. The flight was fine but when we arrived in Dallas everyone who flew on any frontier airlines the picked up bags from baggage claim D15 had to wait over a hour for their bags to start we arrived at 11:30pm ish to the gate we didn't leave the baggage clamed till 12:50 am very not happy and i used to fly frontier 4 times a week for work in Denver i will not be using them again
I missed a flight because of a delay. I had to buy a new ticket through Southwest.
I’m not gonna fly Frontier Airlines because booking is not an option. No water or food is for high price, not equipped for health emergency incompetent crew for emergency services. Cheap airline shows it is cheaper in all service categories. Boarding is the best of all airlines!
My flight was delayed by two hours which made it so that I would miss my layover flight. I stood in line for customer service for over an hour and when I reached the agent she told me to scan a QR code and it'll give me options. I wasn't offered any help, guidance or compensation, only told that I have options but that I had to figure it all out myself. I was refunded part of the trip and had to buy an expensive same day ticket from another airline in order to get home. I will never fly Frontier again.
Very bad! No good service delayed my second connection flight
Frontier is terrible. Paid for exit row, not given exit row, refused to refund fee.
2 hour delay due to late plane, wrong size plane causing overbooking, and people getting off and on the plane after boarding was completed.
The worst. We never made our connection and they did absolutely nothing to help us at the airport.
Transportation mode | Average price | Average duration |
---|---|---|
Flights | $332 | 2h 02m |
Buses | $147 | 15h 30m |
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