When searching for a good deal, it’s best to be prepared for potential fluctuations in price. We recommend booking at least 44 days in advance, which can save you up to 110% on flights from Las Vegas to Illinois compared to booking the week you need them. Waiting 44 days out may not be for everyone, so we have options available for flights within the next two weeks, with the lowest price starting at $156. For sooner than that we have options available in the next 3 days from $289.
Flights from Las Vegas to Illinois lean towards being more expensive in December. Prices are generally better when you fly from Las Vegas to Illinois in October, with the cheapest ticket starting at $78.
Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Las Vegas to Illinois as you normally would.
Fly from
Fly to
Budget
$58 - $78
Route
Depart
Return
Price
Las Vegas Harry Reid IntlLambert-St Louis
LAS - STL
LASSTL
Las Vegas Harry Reid Intl
Mon 8/26
Nonstop3h 16m
Lambert-St Louis
Wed 8/28
Nonstop3h 32m
Las Vegas Harry Reid IntlLambert-St Louis
LAS - STL
LASSTL
Las Vegas Harry Reid Intl
Mon 8/26
Nonstop3h 16m
Lambert-St Louis
Wed 8/28
Nonstop3h 32m
Las Vegas Harry Reid IntlLambert-St Louis
LAS - STL
LASSTL
Las Vegas Harry Reid Intl
Thu 8/15
Nonstop3h 17m
Lambert-St Louis
Mon 8/19
Nonstop3h 37m
Las Vegas Harry Reid IntlLambert-St Louis
LAS - STL
LASSTL
Las Vegas Harry Reid Intl
Fri 8/30
Nonstop3h 17m
Lambert-St Louis
Mon 9/2
Nonstop3h 37m
Las Vegas Harry Reid IntlLambert-St Louis
LAS - STL
LASSTL
Las Vegas Harry Reid Intl
Fri 6/7
Nonstop3h 16m
Lambert-St Louis
Tue 6/11
Nonstop3h 46m
Las Vegas Harry Reid IntlLambert-St Louis
LAS - STL
LASSTL
Las Vegas Harry Reid Intl
Thu 6/27
Nonstop3h 12m
Lambert-St Louis
Wed 7/3
Nonstop3h 40m
Las Vegas Harry Reid IntlLambert-St Louis
LAS - STL
LASSTL
Las Vegas Harry Reid Intl
Fri 6/7
Nonstop3h 16m
Lambert-St Louis
Tue 6/11
1 stop10h 47m
Las Vegas Harry Reid IntlLambert-St Louis
LAS - STL
LASSTL
Las Vegas Harry Reid Intl
Sat 9/21
Nonstop3h 16m
Lambert-St Louis
Sat 9/28
Nonstop3h 35m
Las Vegas Harry Reid IntlLambert-St Louis
LAS - STL
LASSTL
Las Vegas Harry Reid Intl
Fri 9/27
Nonstop3h 17m
Lambert-St Louis
Sat 9/28
Nonstop3h 37m
No data available for this route at this time. Please check back soon.
Overall
Boarding
Food
Entertainment
Comfort
Crew
Reviews
Crew and airport staff were excellent. They accommodated my needs and were super professional and kind.
Overall
Boarding
Food
Entertainment
Comfort
Crew
Reviews
Crew and airport staff were excellent. They accommodated my needs and were super professional and kind.
Overall
Boarding
Food
Entertainment
Comfort
Crew
Reviews
Crew and airport staff were excellent. They accommodated my needs and were super professional and kind.
Overall
Boarding
Food
Entertainment
Comfort
Crew
Reviews
Crew and airport staff were excellent. They accommodated my needs and were super professional and kind.
Overall
Boarding
Food
Entertainment
Comfort
Crew
Reviews
Crew and airport staff were excellent. They accommodated my needs and were super professional and kind.
Overall
Boarding
Food
Entertainment
Comfort
Crew
Reviews
Crew and airport staff were excellent. They accommodated my needs and were super professional and kind.
14%of flight departures | Early morningMidnight to 6 am |
---|---|
40%of flight departures | Morning6 am to noon |
24%of flight departures | AfternoonNoon to 6 pm |
22%of flight departures | Evening6 pm to midnight |
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