Chicago to Las Vegas in December 2026
Round trips departing in December · Economy · Prices per person in USD
Prices updated
Buy now or wait? We're still learning this route. We have 1 day of prices so far and need about a week to say whether to book or wait.
Not ready to book? Get an email when December fares drop below your price.December 2026 by departure day
Cheapest round trip leaving that day| Mon | Tue | Wed | Thu | Fri | Sat | Sun |
|---|---|---|---|---|---|---|
| 1 $261 | 2 $197 | 3 $254 | 4 | 5 | 6 | |
| 7 | 8 | 9 | 10 | 11 | 12 | 13 |
| 14 | 15 $287 | 16 | 17 | 18 | 19 | 20 |
| 21 | 22 | 23 | 24 | 25 | 26 | 27 |
| 28 | 29 | 30 $272 | 31 $275 |
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 2 – 4 2 nights · leave Wed$197Frontier Airlines Nonstop · 4h 13mBook
-
Dec 3 – 6 3 nights · leave Thu$254Frontier Airlines 1 stop · 4h 13mBook
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Dec 1 – 4 3 nights · leave Tue$261Frontier Airlines Nonstop · 4h 13mBook
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Dec 30 – Jan 4, 2027 5 nights · leave Wed$272Frontier Airlines 1 stop · 5h 18mBook
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Dec 31 – Jan 4, 2027 4 nights · leave Thu$275Frontier Airlines Nonstop · 4h 15mBook
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Dec 15 – 18 3 nights · leave Tue$287Frontier Airlines Nonstop · 4h 15mBook
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Dec 31 – Jan 3, 2027 3 nights · leave Thu$307Frontier Airlines Nonstop · 4h 15mBook
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Dec 30 – Jan 3, 2027 4 nights · leave Wed$339Frontier Airlines 1 stop · 5h 18mBook
Prices change often. The booking site shows the final price before you pay.
Cheapest by trip length
Good to know for December
December vs other months
Cheapest round trip per departure month| Month | Cheapest round trip |
|---|---|
| September 2026 | No fares found yet |
| October 2026 | $146 (cheapest month) |
| November 2026 | $161 |
| December 2026 | $197 |
| January 2027 | No fares found yet |
| February 2027 | No fares found yet |
| March 2027 | $339 |
| April 2027 | No fares found yet |
| May 2027 | $329 |
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 2 and returning Friday, December 4 (2 nights) for $197 round trip on Frontier Airlines, the cheapest of the 8 date combinations we track that month.
How much is a round trip from Chicago to Las Vegas in December 2026?
From $197. Half of the 8 date combinations we track are under $274. Prices are per person in USD and change often.
Is December a cheap month to fly from Chicago to Las Vegas?
It ranks 3 of 5 months we have prices for. The cheapest month is October 2026, from $146.