New York to Ontario in December 2026
NYC to ONT · 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 | 2 | 3 $343 | 4 | 5 $376 | 6 | |
| 7 $438 | 8 | 9 $323 | 10 | 11 | 12 | 13 |
| 14 | 15 | 16 | 17 | 18 | 19 | 20 |
| 21 | 22 | 23 | 24 | 25 $576 | 26 $627 | 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 – 12 3 nights · leave Wed$323Alaska Airlines 1 stop · 8h 54mBook
-
Dec 3 – 10 7 nights · leave Thu$343Alaska Airlines 1 stop · 9h 09mBook
-
Dec 5 – 10 5 nights · leave Sat$376Alaska Airlines 1 stop · 8h 54mBook
-
Dec 7 – 10 3 nights · leave Mon$438Frontier Airlines 2 stops · 8h 22mBook
-
Dec 25 – 29 4 nights · leave Fri$576Southwest Airlines 1 stop · 9h 20mBook
-
Dec 26 – Jan 16, 2027 21 nights · leave Sat$627Southwest Airlines 2 stops · 8h 13mBook
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 |
|---|---|
| November 2026 | $339 |
| December 2026 | $323 |
| January 2027 | $311 (cheapest month) |
| February 2027 | $357 |
| March 2027 | $386 |
| April 2027 | $342 |
| May 2027 | $389 |
| June 2027 | $533 |
| July 2027 | $511 |
New York to Ontario in December: questions
What's the cheapest date to fly from New York to Ontario in December 2026?
Leaving Wednesday, December 9 and returning Saturday, December 12 (3 nights) for $323 round trip on Alaska Airlines, the cheapest of the 6 date combinations we track that month.
How much is a round trip from New York to Ontario in December 2026?
From $323. Half of the 6 date combinations we track are under $407. Prices are per person in USD and change often.
Is December a cheap month to fly from New York to Ontario?
It ranks 2 of 9 months we have prices for. The cheapest month is January 2027, from $311.