Cheap flights from Chicago to Las Vegas

One-way fares from $80 · CHI → LAS · prices found by travellers in the last 48 hours

Compare all dates Las Vegas → Chicago
Cheapest fare
$80

Frontier Airlines · Sat, Dec 5

Cheapest month
December

from $80

Direct flights
Yes

Allegiant Air, American Airlines and Frontier Airlines

Flight time
3h 46m

2,450 km

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Cheapest month to fly from Chicago to Las Vegas

Lowest one-way fare per person in each month. Choose a month to see every date.

  1. November 2026 $82
  2. December 2026 Cheapest $80
  3. June 2027 $187

Cheapest dates in December 2026

The lowest fares we've seen for each day, cheapest first.

Frontier Airlines
Depart10:00 Sat, Dec 5ORD → LAS 5h 49m · 1 stop
$80one way, per person
View deal
Frontier Airlines
Depart06:21 Wed, Dec 2ORD → LAS 4h 13m · Direct
$82one way, per person
View deal
Frontier Airlines
Depart06:21 Thu, Dec 3ORD → LAS 4h 13m · Direct
$82one way, per person
View deal
Frontier Airlines
Depart06:21 Tue, Dec 8ORD → LAS 4h 15m · Direct
$83one way, per person
View deal
Frontier Airlines
Depart06:21 Wed, Dec 9ORD → LAS 4h 15m · Direct
$83one way, per person
View deal
See every date in December 2026 →

Plan the rest of your trip to Las Vegas

Where to stay, what to do and getting around, from our travel partners.

Where to stay

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Things to do

Things to do in Las VegasTours, attractions and day trips on Klook Explore →

Getting around

Airport transfer in Las VegasPre-book a driver to meet you at arrivals, with Kiwitaxi Book a transfer → Car hire in Las VegasCompare rental cars from major brands on EconomyBookings Compare cars →

About flights from Chicago to Las Vegas

Chicago (CHI) and Las Vegas (LAS) are about 2,450 km apart. Direct flights take around 3h 46m, and recent direct fares were with Allegiant Air, American Airlines and Frontier Airlines. Over the next few months, one-way fares start from $80, and December 2026 is currently the cheapest month to fly.

These prices come from searches travellers made in the last 48 hours, so they move quickly. If you see a good fare, it's worth booking soon. FlightsExp is free to use: you book directly with our travel partner.

Frequently asked questions

How much is a flight from Chicago to Las Vegas?

The cheapest one-way fare we've seen recently is $80 with Frontier Airlines, departing Saturday, December 5, 2026. Over the coming months, the lowest fare in each month ranges from $80 to $187.

What is the cheapest month to fly from Chicago to Las Vegas?

December 2026 currently has the lowest fares, from $80 one way.

Are there direct flights from Chicago to Las Vegas?

Yes. Recent direct fares were with Allegiant Air, American Airlines and Frontier Airlines.

How long is the flight from Chicago to Las Vegas?

A direct flight takes about 3h 46m. Chicago and Las Vegas are around 2,450 km apart.

Which airlines fly from Chicago to Las Vegas?

Recent fares on this route were with Allegiant Air, Frontier Airlines and American Airlines.

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