Frontier offers extra comfort seats with 32” separation for added legroom.
Frontier's early morning flights have better on-time performance.

Most accurate provider | CheapOair 3 stars |
|---|---|
Most trusted provider | CheapOair 3 stars |
Round-trip from | $100 (Kiwi.com) |
One-way from | $66 (United Airlines) |
Popular in | December |
Cheapest in | September |
Average price | $229 |
Good round-trip deal | $170 or less |
Good one-way deal | $109 or less |
Fly from
Fly to
Route
Depart
Return
Price
Las VegasChicago
LAS - RFD
LASRFD
Las Vegas Harry Reid Intl
Thu 12/4
7:10 am-12:30 pm
Nonstop3h 20m
Chicago Greater Rockford
Sun 12/7
1:20 pm-3:01 pm
Nonstop3h 41m
Las VegasChicago
LAS - ORD
LASORD
Las Vegas Harry Reid Intl
Thu 12/4
11:59 pm-5:33 am
Nonstop3h 34m
Chicago O'Hare Intl
Sun 12/7
8:02 pm-10:14 pm
Nonstop4h 12m
Las VegasChicago
LAS - MDW
LASMDW
Las Vegas Harry Reid Intl
Thu 1/22
11:40 pm-5:05 am
Nonstop3h 25m
Chicago Midway
Mon 1/26
6:10 am-8:25 am
Nonstop4h 15m
Las VegasChicago
LAS - MDW
LASMDW
Las Vegas Harry Reid Intl
Thu 11/20
4:40 pm-10:10 pm
Nonstop3h 30m
Chicago Midway
Sun 11/23
9:25 am-11:25 am
Nonstop4h 00m
Las VegasChicago
LAS - RFD
LASRFD
Las Vegas Harry Reid Intl
Sun 11/23
6:20 am-11:35 am
Nonstop3h 15m
Chicago Greater Rockford
Sat 11/29
12:27 pm-2:12 pm
Nonstop3h 45m
Las VegasChicago
LAS - MDW
LASMDW
Las Vegas Harry Reid Intl
Thu 12/11
11:40 pm-5:05 am
Nonstop3h 25m
Chicago Midway
Sun 12/14
5:15 pm-7:10 pm
Nonstop3h 55m
Las VegasChicago
LAS - MDW
LASMDW
Las Vegas Harry Reid Intl
Thu 12/11
11:40 pm-5:05 am
Nonstop3h 25m
Chicago Midway
Mon 12/15
12:05 pm-2:00 pm
Nonstop3h 55m
Las VegasChicago
LAS - MDW
LASMDW
Las Vegas Harry Reid Intl
Fri 12/5
11:40 pm-5:05 am
Nonstop3h 25m
Chicago Midway
Sun 12/14
1:10 pm-5:00 pm
1 stop5h 50m
Las VegasChicago
LAS - RFD
LASRFD
Las Vegas Harry Reid Intl
Thu 11/13
6:35 am-11:53 am
Nonstop3h 18m
Chicago Greater Rockford
Sun 11/16
12:43 pm-2:26 pm
Nonstop3h 43m
Las VegasChicago
LAS - RFD
LASRFD
Las Vegas Harry Reid Intl
Thu 11/20
6:20 am-11:35 am
Nonstop3h 15m
Chicago Greater Rockford
Sun 11/23
12:25 pm-2:07 pm
Nonstop3h 42m
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy2 stars | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*1 star | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*2 stars | |
| Price Accuracy1 star | Trust Score*3 stars | |
| Price Accuracy- | Trust Score*1 star | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars |
The price you pay for your flight from Las Vegas to Chicago may vary depending on when you book. For the best chance of a lower fare, look to book 85 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.
Currently, November is the cheapest month in which you can book a flight from Las Vegas to Chicago (average of $42). Flying from Las Vegas to Chicago in June is currently the most expensive (average of $137). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.
It’s typically best to fly out from Las Vegas to Chicago in the evening. Doing so could potentially save you 43% on the flight price compared to flying at noon, which is usually more expensive.
Travelers seeking maximum savings on their Las Vegas to Chicago flight should consider departing on Friday evenings when fares are most often at their lowest. Tuesday at noon flights should be avoided if possible as fares are typically the most expensive at this time.
Atlanta (ATL) – chosen by Cheapflights users on 50% of 1-stop itineraries from Las Vegas to Chicago on Cheapflights.
Atlanta (ATL) is the most affordable 1-stop option, with an average round-trip price of $198.
Flights via Denver (DEN) have the shortest average one-way travel time for 1-stop routes: 6h 35m.
Flights via Denver (DEN) offer the fastest connection on this route, with an average layover time of 1h 33m.
Comfort
Food
Entertainment
Boarding
Overall
Crew
Reviews
Gina,Jul 2025
LAS - DEN
Comfort
Food
Entertainment
Boarding
Overall
Crew
Reviews
Gina,Jul 2025
LAS - DEN
Comfort
Food
Entertainment
Boarding
Overall
Crew
Reviews
Gina,Jul 2025
LAS - DEN
Comfort
Food
Entertainment
Boarding
Overall
Crew
Reviews
Gina,Jul 2025
LAS - DEN
Comfort
Food
Entertainment
Boarding
Overall
Crew
Reviews
Gina,Jul 2025
LAS - DEN
Comfort
Food
Entertainment
Boarding
Overall
Crew
Reviews
Gina,Jul 2025
LAS - DEN
Chicago O’Hare is the busiest of the two major airports you’ll be flying into. It’s in the northwest part of the city. It’s 14 miles from the Loop district. Midway is closer to the Loop. It’s only about eight miles from that area. Midway used to be the main airport for Chicago until O’Hare took that over. Now Midway serves as a hub for many of the low-cost carriers, like Southwest.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$67 | Average$168 | FlexibilityNo cancel fee | On-time65% | |
| Cheapest$78 | Average$225 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$91 | Average$193 | FlexibilityNo cancel fee | On-time88% | |
| Cheapest$118 | Average$318 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$153 | Average$323 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$159 | Average$283 | FlexibilityNo cancel fee | On-time63% | |
| Cheapest$159 | Average$260 | FlexibilityNo cancel fee | On-time71% |