The cheapest one-way ticket from Chicago to Las Vegas found recently is 74€, on 8 Dec (December 2026, direct). The most expensive month is June 2027, from 167€. Round trips start at 149€, in December 2026. There are direct flights, the shortest taking 3h 46m. Airlines on this route: Frontier Airlines, Allegiant Air, Alaska Airlines, American Airlines.
Lowest fare by month
| Month | One way | Round trip |
|---|---|---|
| November 2026 | 83€24 Nov · direct | 211€9 Nov–12 Nov · direct |
| December 2026 | 74€8 Dec · direct | 149€2 Dec–5 Dec · direct |
| January 2027 | — | 153€14 Jan–19 Jan · 1 stop |
| March 2027 | 139€13 Mar · 1 stop | 340€12 Mar–14 Mar · direct |
| May 2027 | 165€8 May · 1 stop | — |
| June 2027 | 167€25 Jun · direct | — |
Cheapest days in December 2026
One way, per adult. Blank days: nobody searched them lately.
At a glance
- Airports
- MDW · DPA · PWK · ORD · RFD → LAS
- Airlines
- Frontier Airlines, Allegiant Air, Alaska Airlines, American Airlines
- Direct flights
- Yes, direct fares were seen
The rest of the trip to Las Vegas
- Internet when you land ↗An eSIM for the country, set up before you fly. Handy outside the EU, or when roaming costs extra.
- A ride from the airport ↗A driver waiting at arrivals, at a fixed price.
- Things to do in Las Vegas ↗Tickets for museums, tours and sights.
Flight delayed by three hours or more, or cancelled? Under EU rules you may be owed up to €600. Check your claim.
Frequently asked questions
How much is a flight from Chicago to Las Vegas?
The cheapest one-way ticket found recently is 74€, in December 2026. A round trip starts at 149€. Fares are per adult and change often.
What is the cheapest month to fly from Chicago to Las Vegas?
December 2026, from 74€ one way. The most expensive is June 2027, from 167€.
Are there direct flights from Chicago to Las Vegas?
Yes, direct fares were found on this route in recent days.
How long is the flight from Chicago to Las Vegas?
The shortest flight found takes 3h 46m.
Which airlines fly from Chicago to Las Vegas?
Frontier Airlines, Allegiant Air, Alaska Airlines, American Airlines.
Which airports do flights from Chicago to Las Vegas use?
They leave from MDW, DPA, PWK, ORD, RFD and land at LAS.
Want to know when it gets cheaper?
Make a free account and watch a whole month on this route. We'll email you when a day drops under your price.
Watch this routeFares are the lowest travellers found in recent days' searches, per adult. They change: check the price before you book. Booking links go to our travel partner and are affiliate links: if you book through them we earn a small commission, at no cost to you.