Chicago to Mexico City in December 2026
CHI to MEX · Round trips departing in December · Economy · Prices per person in USD
Prices updated
Typical in December
$644
Median of 5 date combinations
Usual on this route
$394
December runs above usual
Higher than usual — set an alert
20% above the usual $394. 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 | 2 | 3 | 4 | 5 | 6 | |
| 7 | 8 | 9 | 10 | 11 | 12 | 13 |
| 14 | 15 | 16 | 17 $706 | 18 $644 | 19 | 20 |
| 21 | 22 | 23 | 24 $754 | 25 | 26 | 27 |
| 28 | 29 | 30 $492 | 31 $473 |
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 31 – Jan 9, 2027 9 nights · leave Thu$473Volaris 1 stop · 5h 36mBook
-
Dec 30 – Jan 9, 2027 10 nights · leave Wed$492United Airlines 1 stop · 5h 32mBook
-
Dec 18 – 30 12 nights · leave Fri$644Frontier Airlines 2 stops · 8h 10mBook
-
Dec 17 – Jan 6, 2027 20 nights · leave Thu$706Volaris 1 stop · 5h 27mBook
-
Dec 24 – Jan 2, 2027 9 nights · leave Thu$754Volaris 1 stop · 6h 36mBook
Prices change often. The booking site shows the final price before you pay.
Cheapest by trip length
8–14 nights
$473
Dec 31 – Jan 9, 2027 · 4 options
15–21 nights
$706
Dec 17 – Jan 6, 2027 · 1 option
Good to know for December
Airlines with cheap fares
3 airlines
Most often: Volaris, United Airlines, Frontier Airlines.
December vs other months
Cheapest round trip per departure month| Month | Cheapest round trip |
|---|---|
| November 2026 | $511 |
| December 2026 | $473 |
| January 2027 | $316 |
| February 2027 | No fares found yet |
| March 2027 | $314 (cheapest month) |
Chicago to Mexico City in December: questions
What's the cheapest date to fly from Chicago to Mexico City in December 2026?
Leaving Thursday, December 31 and returning Saturday, January 9 (9 nights) for $473 round trip on Volaris, the cheapest of the 5 date combinations we track that month.
How much is a round trip from Chicago to Mexico City in December 2026?
From $473. Half of the 5 date combinations we track are under $644. Prices are per person in USD and change often.
Is December a cheap month to fly from Chicago to Mexico City?
It ranks 3 of 4 months we have prices for. The cheapest month is March 2027, from $314.