Cheap Flights from Chicago to Las Vegas
Chicago to Las Vegas is one of the busiest routes between USA and USA — 3 airlines fly it nonstop, with departures running from before dawn to almost midnight. Here's what it actually costs right now, which airlines to check first, and the days that consistently price lower.
Flight Duration & Airports
- ›Nonstop flight time: 3h 25m–3h 35m westbound; returns are about 30 minutes faster with tailwinds
- ›Departure: Chicago O'Hare (ORD) Terminal 1/2/3; Southwest flies from Midway (MDW) on the southwest side
- ›Arrival: Las Vegas Harry Reid (LAS) Terminal 1 or 3, about 15 minutes from the Strip by taxi
- ›Distance: approximately 2,440 km (1,511 miles)
- ›Time difference: Las Vegas is Pacific Time, two hours behind Chicago
Pricing & Seasonality
- ›Round trips start near $120 on basic economy; full-service fares from ~$180
- ›Cheapest months: January-February (post-holidays) and the heat of July-August
- ›Peak pricing: major conventions, March Madness, New Year's Eve and F1 week in November
- ›Tuesday and Wednesday departures consistently price below Friday-Sunday flights
- ›Book 4-8 weeks ahead; last-minute weekend fares can triple
Airline Comparison
- ›United: hourly-ish frequency from ORD hub, Economy Plus extra-legroom rows, MileagePlus earnings
- ›American: solid ORD schedule with competitive basic-economy pricing
- ›Southwest (from MDW): two free checked bags, no change fees — often cheapest total cost with luggage
Booking Tips
- ›Check both ORD and MDW departures; Southwest's MDW fares frequently undercut O'Hare
- ›Avoid convention weeks: check the Las Vegas calendar before booking — room rates and fares spike together
- ›Tuesday/Wednesday flights save 10-20% versus weekend departures
- ›Red-eye returns often drop $30-$50 below evening flights
Getting Into Las Vegas
- ›Taxi/rideshare to Strip hotels: $15-$25, 10-20 minutes depending on traffic
- ›RTC buses (108/deuce routes) cover airport-to-Strip for a few dollars
- ›Rental cars only worth it for Grand Canyon/Valley of Fire day trips — parking on the Strip now charges at most resorts
Why Fly Chicago to Las Vegas?
- ›High-frequency competition keeps base fares among the lowest per mile in the US domestic market
- ›Two Chicago airports give schedule flexibility from pre-dawn to late night
- ›No connections needed: nonstop all day means same-day rebooking options when plans shift
Airlines Flying Chicago to Las Vegas
3 airlines operate nonstop between Chicago and Las Vegas:
| Airline | Nonstop | Notes |
|---|---|---|
| Multiple airlines | Nonstop | Highest frequency |
Flexible on layovers? Connecting flights via major hubs can sometimes be cheaper than flying direct. Use Flighko to compare both options and find the best deal for your schedule.
Best Time to Book & Fly Chicago to Las Vegas
Finding cheap flights depends on timing. Here's what you need to know about the best time to fly from Chicago to Las Vegas:
When to Book
Book 4-8 weeks ahead for the best average prices. Going further out can pay off for peak travel seasons and major events when demand spikes.
Best Day to Fly
Tuesday departures tend to be priced lower than other days, while Sunday departures are typically the most expensive.
Best Time of Day
Morning flights are generally cheaper than evening ones on this route. If your schedule allows, consider early departures for potential savings.
Best Month
October tends to offer the best prices for this route. Set a price alert on Flighko to catch fare drops in real time.
Are Chicago to Las Vegas Flights Often Delayed?
Historical tracking shows roughly 30% of flights on this route run late, averaging around 18.8 min. Evening flightshave historically run more reliably — worth factoring in if you've got a tight connection.
How to Find Cheap Flights from Chicago to Las Vegas
Here are proven strategies to help you find the cheapest flights on this route:
- Book in advance: For the best prices, book your flight 4-8 weeks before departure. Last-minute bookings typically cost 20-40% more.
- Be flexible with dates: Flying on Tuesdays can save you 15-25% compared to other days. Use Flighko's flexible date search to see prices across the entire month.
- Compare airlines: Don't settle for the first price you see. Flighko compares prices from 200+ airlines, including budget carriers and full-service airlines.
- Set price alerts: Not ready to book yet? Set a price alert on Flighko and we'll notify you when fares drop for your desired route.
- Consider nearby airports: Sometimes flying into or out of a nearby airport can save you hundreds of dollars. Check prices for alternate airports on Flighko.
- Travel during off-peak seasons: Avoid peak travel times like holidays and school breaks. Shoulder season travel (just before or after peak) often offers the best balance of good weather and low prices.
Flight Route Information
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