Frontier's Economy Bundle includes a carry-on and seat choice, ideal for budget travelers.
Consider Premium Bundle for priority boarding and extra legroom at a small additional cost.
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 Chicago 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 Chicago 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.
Cheapest Route: Opt for flights from Chicago O'Hare (ORD) to Las Vegas (LAS) for the cheapest route.
Booking Advance: Book your flight at least 21 days in advance to get the best deal.
Cheapest Airline: Consider flying with Spirit Airlines, as they generally offer the cheapest fares.
Direct or Layover: Direct flights are typically more expensive, so consider flights with a layover to save money.
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 | January |
---|---|
High season | March |
Cheapest flight | $33 |
Find which airlines fly direct from Chicago to Las Vegas Harry Reid Intl Airport, which days they fly and book direct flights.
Direct departures
Chicago to Las Vegas Harry Reid Intl
Monday
Aer Lingus, Air Canada, American Airlines, +17 more
Aer Lingus, Air Canada, +18 more
16
17
Tuesday
Aer Lingus, Air Canada, American Airlines, +17 more
Aer Lingus, Air Canada, +18 more
16
17
Wednesday
Aer Lingus, Air Canada, American Airlines, +16 more
Aer Lingus, Air Canada, +17 more
15
16
Thursday
Aer Lingus, Air Canada, Allegiant Air, +18 more
Aer Lingus, Air Canada, +19 more
17
18
Friday
Aer Lingus, Air Canada, American Airlines, +17 more
Aer Lingus, Air Canada, +18 more
16
17
Saturday
Aer Lingus, Air Canada, American Airlines, +17 more
Aer Lingus, Air Canada, +18 more
16
17
Sunday
Aer Lingus, Air Canada, Allegiant Air, +18 more
Aer Lingus, Air Canada, +19 more
17
18
Direct returns
Las Vegas Harry Reid Intl to Chicago
Monday
Aer Lingus, Air Canada, American Airlines, +17 more
Aer Lingus, Air Canada, +18 more
16
17
Tuesday
Aer Lingus, Air Canada, American Airlines, +17 more
Aer Lingus, Air Canada, +18 more
16
17
Wednesday
Aer Lingus, Air Canada, American Airlines, +16 more
Aer Lingus, Air Canada, +17 more
15
16
Thursday
Aer Lingus, Air Canada, Allegiant Air, +18 more
Aer Lingus, Air Canada, +19 more
17
18
Friday
Aer Lingus, Air Canada, American Airlines, +17 more
Aer Lingus, Air Canada, +18 more
16
17
Saturday
Aer Lingus, Air Canada, American Airlines, +17 more
Aer Lingus, Air Canada, +18 more
16
17
Sunday
Aer Lingus, Air Canada, Allegiant Air, +18 more
Aer Lingus, Air Canada, +19 more
17
18
WiFi on the flight was not working. Thus, entertainment options were limited.
WiFi on the flight was not working. Thus, entertainment options were limited.
Great flight staff. Ease of boarding. Overall, very uneventful and easy trip.
Plane late from DC to Austin 30 minutes. Crew made up much of the time enroute to San Diego.
Gate agents were informative and friendly… flight attendants were as well. Had a fun time chatting about their legacy AirTran experiences as a former fan of the airline that Southwest acquired.
Flight was awfully bumpy and landing was a bit jolting. I was in the restroom when snacks and drinks were served and was not asked if i wanted any. I had to ask for water finally.
Wi Fi was horrible kept cutting out the whole time and too expensive
One of the crew performed a hilarious skit to accompany the standard instructions. Passengers enjoyed it so much they applauded at the end!
We had a nice flight. Boarding was easy, our seats were comfortable and the on board service was pleasant.
Excellent experience. WiFi worked on this leg of My trip
I used to fly SWA all the time. I know the crew has their little acts that are often fun, and entertaining. On this flight one of the crew was just not nice. Very surprising.
Delays took 2hours and thirty minutes making me miss my connecting flight and make me sit in the Chicago airport for 9 hours
Had a short delay once we boarded the aircraft in Chicago, but it was fixed in no time flat then we were on our way. The pilot was able to make up the time lost and we landed 5 minute later then schedualed . Great service
Our seats were all the way in back of the plane,
The seats on this flight were almost roomy enough to be the basic amount needed for human existence. I think my favorite part of this flight was it landed at an A gate, which was the most palatial part of Sea-Tac I've ever seen - a massive improvement from the S gates.
The seats on this flight were almost roomy enough to be the basic amount needed for human existence.
The flight attendants in First Class were mediocre at best. They did not take our tray away until we were about to land and only did so when I press the call button. The United person at the United Club was asked to get us our boarding pass since we missed the flight due in Chicago. She argued that we did not have seats on the flight given to us in Moline. Furthermore, she was adamant that we did not have a First Class ticket. After I spent much time with her trying to show we were correct, she reluctantly agreed. She was probably the most incompetent ticketing person I have ever met and I have traveled 3 million miles on United plus many additional miles with other carriers. United has definitely deteriorated in more than on way.
Short flight - no food understandable. Flight was delayed for over an hour. Overall, it was good.
First class felt like economy, seats were horrible, food was horrible, staff inattentive
We arrived early and finally made it to our gate almost an hour after.
Was a pain having to leave the plane and reboard but glad the plane was fixed
Great experience. Flight boarded easily. Departed early. Smooth flight. Great arrival in DC--almost no taxing! Almost direct to gate from runway. Crew was terrific. Same cookies and beverages in main cabin. I did not use the entertainment system on this flight.
Almost everything was outstanding. First, we boarded on time and the flight crew did a great job getting everyone seated. Then the pilots took their time and care to make sure the plane was full de-iced three times as there was a bad ice storm a few hours earlier. The plane ride was smooth and comfortable and even the economy seats had decent room and comfort. Flight Attendant Lisa went above and beyond to make sure I was comfortable - she is outstanding. The only thing wrong with the flight, and it is something which needs to be addressed, is that the gate to gate time was over 6.5 hours and not one meal was served. The only thing offered to eat were two small cookies for a transcontinental flight - unacceptable. Charge me more but give me a meal for a long flight. Thankfully Lisa found something for me.
I got bumped due to weight restrictions even tho there were empty seats on my flight. I got put on an other flight with a stopover. My flight that originally was going to take 5-6 hours ever up being 14+ hours and my luggage arrived to my destination without me because I was made to check in my luggage on my original flight when I was deemed ok to board only to be asked to deplane. Worst flight experience.
First class flight attendant was rude and lacked any customer service skills.
Most of the delay was due to weather which is not what was at issue here. One delay was due to a missing flashlight and in the end the flashlight was actually found on the plane. The entertainment system is very limited. Live TV options offer only a few channels that are not very appealing. Boarding and deplaning are always difficult. It just takes too much time to get on and off the plane. On the plus side, I missed my connecting flight, but was easily able to book a later flight from the app while enroute.
You were more on time than United. I'm so over united delays.
The meals were mediocre and the alcohol selection was poor. I enjoyed the selection of movies and other entertainment.
I chatted with the captain before the flight, and similarly during the welcome announcement, he warned of a turbulent flight that may impact the in-flight service. However, once at altitude, he announced that the weather changed and he immediately turned off the seatbelt sign. But it appeared the cabin crew had already decided to take off this flight. They remained seated and then just chatted in the galley. The flight was fully catered, but only first class received service.
They didn't have any gluten-free snacks, oddly, which I require...or any flavored soda water or decaf tea options, which seems to be standard.
My flight attendant was attentive! The elderly person next to me was flatulent and the flight attendant could see that I was in distress and brought me some face masks
Surprising everything went well. Nice attendants and fast getting on and off the plane. Overall, was happy with the experience.
I was surprised by a mandatory bag charge when I checked in at the airport. "Carry-on" wasn't an option eventhough all that I had was a small pilot case. I paid $79 so my bag could fly with me.
Not efficient. Missed my connecting flight over improper operation of spirit crew.
I couldn't understand the crew when they announced it was a new plane and there was therefore no wifi, huh? Seriously lame for 2025!
My experience was very nice. However, my Spirit flight 409 from Las Vegas to Tampa… the gate Associate Tissa was extremely unprofessional and boarder line rude. While in line I found out that my Uncle died… in that moment Tisza asked if I would help in car of an emergency as I paid for an exit row seat. I stayed “I will”… Tissa didn’t hear then implied that I didn’t understand English, yelled that I needed to speak up and other things. Associates like that will cause Spirit airlines to lose customers.
They kept delaying us and not providing any information which cost us hundreds of dollars . We had an event to get to and missed our even that we had paid for along with lots of wasted time and money booking nee flights.
The people were wonderful, but I hated the way they over charged for luggage, especially for stops which were charged the same as starting point to final destination.
First time flying Spirit and I was pleasantly surprised. Service was as advertised. Crew were very professional and friendly and excellent in dealing with a customer who felt ill on the flight.
Fantastic. Had handicapped traveler and they helped us through security, helped with boarding, helped put wheelchair together, and were all very patient. A pleasant change from previous spirit flights I’ve taken. Highly recommend.
Spirit's seating does not work for an overnight flight and my back is killing me. This airline does not meet the minimum standards for being an airline.
Seats were extremely uncomfortable and it was very hot on the plane.
Would be great if Frontier can Assign Seats together under one PNR
Early arrival. Great landing. Pilot updates. Too cold in plane.
Better to put road truck seat in plain it so uncomfortable can not adjustable and fill metal don’t have cushions at all it’s very hard to travel for five hours
Since they are a budget airline, I wasn’t expecting too much but they did some things well. They were on time, the plane was clean, boarding was fairly straightforward and the staff was cheerful and friendly. The only downside was comfort. The seats were fairly hard and after a 2 hour flight your rear end is not feeling so great. Maybe a little more cushion in the seats, Frontier!
They cancelled the flight and did nothing. I should be compensated for my uber rides to and from airport. Not a good service by frontier or kayak.
No frills for sure. No gate announcements about flight delay, not even water to drink on the flight.
food not having to pay for it, reclining seat would be nice, more leg room, HEAT!!!!!!!
An absolutely fraudulent experience. Extremely unprofessional. Terrible in all ways possible. Rude staff, flight attendants, and deceptive "policies."
The worst service , the agents from the counter are really bad . Poor customer service . They didnt help me to get in the flight . I was on line when they close the flight without telling and I couldn’t board the plane . I will like to get my money back ey back because it was their fault. Really bad management , bad manners, bad additud
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