Chicago to Las Vegas in December 2026
CHI to LAS · Round trips departing in December · Economy · Prices per person in USD
Prices updated
Typical in December
$254
Median of 5 date combinations
Usual on this route
$263
December's cheapest is 23% less
Good price — book if the dates work
23% below the usual $263, and prices have been rising this week. Based on 47 days of prices.
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December 2026 by departure day
Cheapest round trip leaving that day| Mon | Tue | Wed | Thu | Fri | Sat | Sun |
|---|---|---|---|---|---|---|
| 1 $254 | 2 $268 | 3 $291 | 4 | 5 | 6 | |
| 7 $231 | 8 | 9 $202 | 10 | 11 | 12 | 13 |
| 14 | 15 | 16 | 17 | 18 | 19 | 20 |
| 21 | 22 | 23 | 24 | 25 | 26 | 27 |
| 28 | 29 | 30 | 31 |
Empty days: no round trip found for that departure date yet. Green = cheapest third of the month.
Cheapest dates in December 2026
Round trip, per person-
Dec 9 – 16 7 nights · leave Wed$202Frontier Airlines Nonstop · 4h 15mBook
-
Dec 7 – 9 2 nights · leave Mon$231Frontier Airlines Nonstop · 4h 15mBook
-
Dec 1 – 8 7 nights · leave Tue$254Frontier Airlines 1 stop · 6h 46mBook
-
Dec 2 – 5 3 nights · leave Wed$268Frontier Airlines 1 stop · 6h 46mBook
-
Dec 3 – 5 2 nights · leave Thu$291Frontier Airlines 1 stop · 5h 14mBook
Prices change often. The booking site shows the final price before you pay.
Cheapest by trip length
2–4 nights
$231
Dec 7 – 9 · 3 options
5–7 nights
$202
Dec 9 – 16 · 2 options
Good to know for December
Airline
Frontier Airlines
Every cheap fare we track on this route is on Frontier Airlines.
December vs other months
Cheapest round trip per departure month| Month | Cheapest round trip |
|---|---|
| November 2026 | $279 |
| December 2026 | $202 |
| January 2027 | $186 (cheapest month) |
| February 2027 | $257 |
| March 2027 | $299 |
| April 2027 | $269 |
Chicago to Las Vegas in December: questions
What's the cheapest date to fly from Chicago to Las Vegas in December 2026?
Leaving Wednesday, December 9 and returning Wednesday, December 16 (7 nights) for $202 round trip on Frontier Airlines, the cheapest of the 5 date combinations we track that month.
How much is a round trip from Chicago to Las Vegas in December 2026?
From $202. Half of the 5 date combinations we track are under $254. Prices are per person in USD and change often.
Is December a cheap month to fly from Chicago to Las Vegas?
It ranks 2 of 6 months we have prices for. The cheapest month is January 2027, from $186.