Unpublished fares · Call1-855-919-647024/7

Cheap Flights from Chicago to Las Vegas

Chicago to Las Vegas is one of the most competitive domestic routes in the US, with multiple airlines fighting for your business daily. That competition creates real pricing opportunities — and Camli's consolidator network finds the best of them. Search ORD to LAS fares and see why two million travelers trust Camli to get them there for less.

Chicago to Las Vegas Flight Overview

routeChicago (ORD / MDW) → Las Vegas (LAS / Harry Reid Intl)
durationApproximately 3 hours 50 minutes nonstop
distance~1,515 miles
airlinesUnited, American, Delta, Southwest, Spirit, Frontier, Allegiant
nonstopYes — 10+ daily flights
busy SeasonNew Year's, Super Bowl weekend, summer, major holidays

Best Time to Book Chicago to Las Vegas Flights

Cheapest Months to Fly

September and October are consistently the cheapest months for ORD–LAS. January (post-New Year's) is also surprisingly affordable. Avoid major Vegas events — Formula 1 Grand Prix (November), New Year's Eve, and long weekends.

Best Days of the Week

Tuesday, Wednesday, and Thursday offer the lowest fares. Weekend departures — especially Friday evenings — are the most expensive by a significant margin.

Optimal Booking Window

The ideal booking window for Chicago–Las Vegas is 4–8 weeks ahead. Vegas is a spontaneous destination, so last-minute inventory exists, but prices spike 0–7 days out as leisure travelers fill seats.

Tips for Finding Cheap Chicago to Las Vegas Flights

1Fly Midway (MDW) for Better Value

Midway Airport (MDW) is often 15–20% cheaper than O'Hare (ORD) on this route, particularly on Southwest. Always search both.

2Vegas Hotel Packages

Camli's expert agents can sometimes bundle consolidator airfare with hotel packages. Call 1-855-919-6470 for package pricing on Vegas trips.

3Watch for Spirit and Frontier Sales

Both ultra-low-cost carriers run ORD–LAS flash sales multiple times per year. Camli's deals page surfaces these automatically.

4Consider Tuesday Returns

If you're flying out Friday, consider returning Tuesday instead of Sunday — you'll save $40–80 on the return leg and miss the Sunday airport chaos.

Ready to Book Chicago to Las Vegas?

Search Camli's consolidator network for fares up to 70% below published prices. Or call our 24/7 expert line for unpublished deals.

Call 1-855-919-6470

Frequently Asked Questions — Chicago to Las Vegas Flights

How long is the flight from Chicago to Las Vegas?
Nonstop flights from Chicago O'Hare (ORD) to Las Vegas (LAS) take approximately 3 hours and 50 minutes. From Midway (MDW), it's similar.
What's the cheapest airline from Chicago to Las Vegas?
Spirit, Frontier, and Allegiant typically have the lowest base prices. Southwest often wins when you factor in free bags. Camli's consolidator fares beat published prices on all major carriers.
Is it cheaper to fly from O'Hare or Midway to Las Vegas?
Generally Midway (MDW) is cheaper, particularly on Southwest. Always search both airports using the "CHI" metro code on Camli.
What's the best time to visit Las Vegas from Chicago?
March–May and September–October offer the best weather and lowest airfares. Avoid major event weekends when hotel and flight prices spike simultaneously.
Can I book a same-day flight from Chicago to Las Vegas?
Yes. Vegas is one of the best cities for last-minute deals. Call Camli at 1-855-919-6470 for same-day consolidator availability.