Trip.com
>
Flights
>
Flights to United States
>
Flights to Nevada
>
Flights to Las Vegas
Hotels in Las Vegas
>
Flights from Chicago to Las Vegas

Cheapest airlines flights from Chicago to Las Vegas

You can choose from 3 airlines that fly from Chicago to Las Vegas, including United Airlines, American Airlines, and Frontier Airlines. Frontier Airlines has lowest fares on this route.
United Airlines logo United Airlines
American Airlines logo American Airlines
Frontier Airlines logo Frontier Airlines
Airlines are determined based on actual purchased flight tickets from Chicago to Las Vegas according to previous 12 months data from Trip.com.

Search for direct flights from Chicago to Las Vegas in the next 3 months. Based on Trip.com's latest 7-day flight data, one-way direct flights start at US$41, and round-trip direct flights start at US$93.

      • Cheapest nonstop
        ORD 20:58
        4h 27m
        Nonstop
        LAS 23:25
        Chicago - Las Vegas | Sun, May 3 | Frontier Airlines
        LAS 00:59
        3h 48m
        Nonstop
        ORD 06:47
        Las Vegas - Chicago | Tue, May 5 | Frontier Airlines
        US$93 US$111
        16% off
        16% off
        US$111 US$93
      • ORD 20:58
        4h 27m
        Nonstop
        LAS 23:25
        Chicago - Las Vegas | Tue, Apr 28 | Frontier Airlines
        LAS 00:20
        3h 48m
        Nonstop
        ORD 06:08
        Las Vegas - Chicago | Sat, May 2 | Frontier Airlines
        US$96 US$111
        14% off
        14% off
        US$111 US$96
      • ORD 20:58
        4h 27m
        Nonstop
        LAS 23:25
        Chicago - Las Vegas | Sat, May 2 | Frontier Airlines
        LAS 00:59
        3h 48m
        Nonstop
        ORD 06:47
        Las Vegas - Chicago | Wed, May 6 | Frontier Airlines
        US$96 US$111
        14% off
        14% off
        US$111 US$96
      • ORD 22:07
        3h 52m
        Nonstop
        LAS 23:59
        Chicago - Las Vegas | Sat, May 2 | Spirit Airlines
        LAS 00:59
        3h 48m
        Nonstop
        ORD 06:47
        Las Vegas - Chicago | Wed, May 6 | Frontier Airlines
        US$98
        12% off
        US$111 US$98
      • ORD 22:07
        3h 52m
        Nonstop
        LAS 23:59
        Chicago - Las Vegas | Sat, Apr 25 | Spirit Airlines
        LAS 00:20
        3h 48m
        Nonstop
        ORD 06:08
        Las Vegas - Chicago | Wed, Apr 29 | Frontier Airlines
        US$98
        12% off
        US$111 US$98
      • ORD 22:07
        3h 52m
        Nonstop
        LAS 23:59
        Chicago - Las Vegas | Thu, Apr 23 | Spirit Airlines
        LAS 00:20
        3h 48m
        Nonstop
        ORD 06:08
        Las Vegas - Chicago | Wed, Apr 29 | Frontier Airlines
        US$98
        12% off
        US$111 US$98
      • ORD 20:58
        4h 27m
        Nonstop
        LAS 23:25
        Chicago - Las Vegas | Sat, Apr 25 | Frontier Airlines
        LAS 00:20
        3h 48m
        Nonstop
        ORD 06:08
        Las Vegas - Chicago | Wed, Apr 29 | Frontier Airlines
        US$98
        12% off
        US$111 US$98
      • ORD 20:58
        4h 27m
        Nonstop
        LAS 23:25
        Chicago - Las Vegas | Sun, Apr 26 | Frontier Airlines
        LAS 00:20
        3h 48m
        Nonstop
        ORD 06:08
        Las Vegas - Chicago | Sat, May 2 | Frontier Airlines
        US$103
        7% off
        US$111 US$103
      • ORD 22:07
        3h 52m
        Nonstop
        LAS 23:59
        Chicago - Las Vegas | Fri, May 1 | Spirit Airlines
        LAS 00:59
        3h 48m
        Nonstop
        ORD 06:47
        Las Vegas - Chicago | Thu, May 7 | Frontier Airlines
        US$104
        6% off
        US$111 US$104
      • ORD 20:58
        4h 27m
        Nonstop
        LAS 23:25
        Chicago - Las Vegas | Thu, Apr 23 | Frontier Airlines
        LAS 00:20
        3h 48m
        Nonstop
        ORD 06:08
        Las Vegas - Chicago | Wed, Apr 29 | Frontier Airlines
        US$104
        6% off
        US$111 US$104
      • CHI 13:00
        17h 25m
        1 stop
        LAS Invalid Date
        Chicago - Las Vegas | Fri, Apr 24 | Normal Airline
        LAS 15:00
        6h
        Nonstop
        CHI 16:00
        Las Vegas - Chicago | Sun, Apr 26 | Normal Airline
        Find more flights
        Find more flights
      • Cheapest nonstop
        ORD 21:18
        4h 18m
        Nonstop
        LAS 23:36
        Chicago - Las Vegas | Tue, May 19 | Frontier Airlines
        US$41 US$88
        53% off
        53% off
        US$88 US$41
      • ORD 22:10
        4h 4m
        Nonstop
        LAS 00:14
        Chicago - Las Vegas | Tue, May 19 | American Airlines
        US$62 US$88
        30% off
        30% off
        US$88 US$62
      • ORD 07:12
        4h 16m
        Nonstop
        LAS 09:28
        Chicago - Las Vegas | Tue, Jun 16 | Frontier Airlines
        US$72 US$88
        18% off
        18% off
        US$88 US$72
      • ORD 07:12
        4h 16m
        Nonstop
        LAS 09:28
        Chicago - Las Vegas | Tue, Jun 9 | Frontier Airlines
        US$72
        18% off
        US$88 US$72
      • ORD 21:37
        27h 52m
        1 stop
        LAS 23:29
        Chicago - Las Vegas | Sat, May 23 | Frontier Airlines
        US$71
        19% off
        US$88 US$71
      • ORD 13:59
        8h 52m
        1 stop
        LAS 20:51
        Chicago - Las Vegas | Sun, May 10 | Frontier Airlines
        US$80
        9% off
        US$88 US$80
      • ORD 16:48
        9h 1m
        1 stop
        LAS 23:49
        Chicago - Las Vegas | Mon, May 11 | Frontier Airlines
        US$80
        9% off
        US$88 US$80
      • ORD 16:48
        9h 1m
        1 stop
        LAS 23:49
        Chicago - Las Vegas | Fri, May 15 | Frontier Airlines
        US$80
        9% off
        US$88 US$80
      • MDW 06:10
        15h 22m
        1 stop
        LAS 19:32
        Chicago - Las Vegas | Tue, Apr 28 | Frontier Airlines
        US$82
        7% off
        US$88 US$82
      • ORD 12:40
        13h 14m
        1 stop
        LAS 23:54
        Chicago - Las Vegas | Tue, May 12 | Frontier Airlines
        US$82
        7% off
        US$88 US$82
      • CHI 13:00
        17h 25m
        1 stop
        LAS Invalid Date
        Chicago - Las Vegas | Fri, Apr 24 | Normal Airline
        Find more flights
        Find more flights

Displayed flight fares from Chicago to Las Vegas are based on average prices across airlines for the next 3 months, according to the latest Trip.com database.

Chicago to Las Vegas Flight Details

The distance between Chicago and Las Vegas is about 2,453.29 km. The average flying time from Chicago to Las Vegas is around 4 hours 6 minutes. Based on Trip.com's latest data, travel demand is highest in July. The off-season for travel is November.

Cheapest one-way flight priceUS$41
Cheapest return ticket priceUS$93
Cheapest monthNovember
Peak season for travelJuly
Flight distance2,453.29 km
Average flight time4 hours 6 minutes
Popular airlineUnited Airlines
Flight statistics for the Chicago–Las Vegas route are based on aggregated booking data from Trip.com over the past 12 months.

Trip.com Price Insights on Flights from Chicago to Las Vegas

Which month has the cheapest one-way flights from Chicago to Las Vegas?

The average price of one-way flights from Chicago to Las Vegas purchased by Trip.com users by month over the past 12 months.

Based on Trip.com’s data, the cheapest month for flights from Chicago to Las Vegas is November, with an average price of US$142; while the month with the highest flight price is usually October, with an average price of up to US$226.

US$226
US$184
US$142
US$100
    Cheapest
  • US$168
    Apr
  • US$153
    May
  • US$165
    Jun
  • US$173
    Jul
  • US$196
    Aug
  • US$177
    Sep
  • US$226
    Oct
  • US$142
    Nov
  • US$204
    Dec
  • US$166
    Jan
  • US$177
    Feb
  • US$193
    Mar

What is the cheapest day of the week to fly from Chicago to Las Vegas?

Average weekly flight prices from Chicago to Las Vegas by travel date (Based on Trip.com’s past 12 months of data)

Based on Trip.com’s past 12 months of flight data, the cheapest day to fly from Chicago to Las Vegas is Monday, with average prices lower than on other days. Avoid Friday, as prices are usually highest then.

US$215
US$185
US$154
US$124
  • US$154
    Mon
  • US$186
    Tue
  • US$182
    Wed
  • US$206
    Thu
  • US$215
    Fri
  • US$196
    Sat
  • US$160
    Sun

When is the cheapest day to fly from Chicago to Las Vegas during International Workers' Day?

Based on Trip.com's data over the past 3 days, these are the lowest one-way flight prices from Chicago to Las Vegas during International Workers' Day.

International Workers' Day is scheduled for May 1. The cheapest flights from Chicago to Las Vegas are available on Apr 30, with fares starting at US$101.

US$129
US$115
US$101
US$87
    Cheapest
  • US$129
    27
    Apr
  • US$127
    28
  • US$107
    29
  • US$101
    30
  • US$126
    1
    May
  • US$125
    2
  • US$101
    3

Frequently Asked Questions

  • What are the cheapest flights from Chicago to Las Vegas (CHI-LAS)?

    Based on Trip.com data, Frontier Airlines offers one-way fares as low as US$41 on Cheapest nonstop routes (e.g. ORD to LAS on Tue, May 19), while Frontier Airlines offers Cheapest nonstop round-trips from US$93 departing on Sun, May 3 and returning on Tue, May 5.
  • At the moment, you can catch a nonstop flight from Chicago to Las Vegas with the following airlines, including: United Airlines American Airlines Frontier Airlines Selected airlines are based on historical data collected from flight bookings users made on Trip.com within the last 90 days.
  • It takes about 4 hours 6 minutes to fly from Chicago to Las Vegas.
  • By analyzing data from all airlines on the Trip.com flight calendar, it looks like the best time to book a flight from Chicago to Las Vegas is around 40 days (6 weeks) in advance, and the best time to fly is usually on Tuesday, Wednesday, and Saturday. Tuesday typically offers the cheapest flights for departure, while Saturday offers the best return deals.
  • Based on Trip.com data in the past 4 weeks, there is 100 flight per week flying from Chicago to Las Vegas. You can check the weekly schedule for popular airlines on this route below: American Airlines: S/M/T/W/T/F/S -- AA2244 (11:05)
  • To find best deals on flights from Chicago to Las Vegas, you can use various tools on Trip.com:
    · Be flexible with your travel dates to get the cheapest flight deal. Now the cheapest flight deal is on Tue, May 19, with one-way flights priced at just US$41.
    · Compare airlines strategically. Budget carriers often provide the lowest base fares, while we found the most affordable airline currently operating on this route is Frontier Airlines.
    · Set up price alerts to easily monitor ticket prices without having to check every day.
    · Check Trip.com flight deals and promo codes frequently.
    · Avoid peak season unless you book very early. It seems the peak season for Las Vegas travel is around July.
    · Get exclusive promo codes for Trip.com app users.
  • The cheapest months to fly from Chicago to Las Vegas is November, when demand for travel is lower.
  • After crunching the numbers on our April flight calendar, it's currently cheapest to fly from Chicago to Las Vegas on April 28, 2026 with Frontier Airlines, with prices starting at US$37.
  • You can land at any one of the following hubs in Las Vegas, with Chicago O'Hare International Airport to Harry Reid International Airport (ORD-LAS) is by far the most common option on this route: Boulder City Municipal Airport (BLD) Henderson Executive Airport (HSH) Harry Reid International Airport (LAS) Nellis Air Force Base (LSV).
  • The time difference between Las Vegas and Chicago is 2h.
  • Tickets can only be changed or canceled if permitted by airline policy. To submit a change or cancellation request, go to the flight bookings page, select the option to change or cancel your booking, choose the relevant passengers and segment, and submit a request. Please note that additional charges may apply according to the airline ticket policy. However, if the flight has been rescheduled and you would like to change or cancel your ticket, you can submit an involuntary cancellation request. For more details about change and cancellation policies, please check the customer support pages.

Trip.com Airline Insights on Flights from Chicago to Las Vegas

Which airline offers the cheapest direct flights from Chicago to Las Vegas?

Data is based on the average price of all nonstop flights from Chicago to Las Vegas on Trip.com over the past 12 months.

Based on Trip.com’s data from the past 12 months, Frontier Airlines provides the lowest-priced direct flights from Chicago to Las Vegas, with fares starting at US$140.

US$82
US$140
US$198
US$256
US$314
Frontier Airlines
US$140
Frontier Airlines
Spirit Airlines
US$145
Spirit Airlines
American Airlines
US$239
American Airlines
United Airlines
US$308
United Airlines
Delta Air Lines
US$314
Delta Air Lines

Which airline operates the most flights from Chicago to Las Vegas?

Total flights from Chicago to Las Vegas across all airlines. (Based on Trip.com data from the past month)

Based on Trip.com’s data from the past month, United Airlines operates the most frequent flights from Chicago to Las Vegas, with 61 flights per week.

3
22
42
61
United Airlines
61
United Airlines
American Airlines
46
American Airlines
Air Canada
38
Air Canada
Aer Lingus
34
Aer Lingus
British Airways
22
British Airways

How many flights fly from Chicago to Las Vegas daily?

The data is based on the flight numbers for each day of the week from Chicago to Las Vegas within the Trip.com database over the past month.

Based on the past month's historical data from Trip.com, the number of flights from Chicago to Las Vegas is the highest on Friday and the lowest on Tuesday.

274
234
194
154
Highest
223
Mon
194
Tue
200
Wed
210
Thu
274
Fri
252
Sat
231
Sun

Explore More Popular Flights

Note: Prices shown on this page are the estimated lowest prices found in the last 24 hours and include all taxes and fees.

Book with no extra fees

Prices displayed on this page are all-inclusive (incl. taxes, fuel surcharges, Civil Aviation Development Fund, etc.), and all fees are clearly shown before you pay. Charges for checked baggage, onboard meals, Wi‑Fi, and other optional services are also included where applicable in the flight cards.

Real-time pricing updates

Prices, availability, and travel details on this page have been updated within the last 24 hours, and for many routes are refreshed in real time. The more popular the route, the more accurate and up-to-date the data.

Change & Cancellation Policy

Trip.com shows the change and cancellation rules for each ticket during the booking process, including all related fees and conditions. Please refer to the following scenarios:
Voluntary cancellation/change:
To request a change or cancellation, go to the flight bookings page, select the option to change or cancel your booking, choose the relevant passengers and flight segment, and submit your request. Please note that additional charges may apply based on the airline’s fare rules.
Cancellation/change due to a flight schedule change:
If your flight has been rescheduled and you would like to change or cancel your ticket, you can submit an involuntary cancellation request. For full details of change and cancellation policies, please refer to the customer support pages.