10 Best International Flight Deals From Chicago in December 2026

The best international flight deals from Chicago in December

Phu Quoc has the largest relative difference in the final ten, but George Town is the clearest low-cost warm-weather option at $329 return. Brussels and Amsterdam sit in a completely different category: both are inexpensive transatlantic fares whose dates overlap with major December events.

The long-haul destinations require more context. Seoul is cold in December, but $922 is still hundreds below its typical fare. Puerto Natales has the smallest percentage difference in the table, yet its dates line up with the beginning of peak hiking season in Chilean Patagonia.

That is the main pattern in this list. The strongest December fare is not always the destination with the largest percentage.

1. Phu Quoc, Vietnam

At $1,131 return, Phu Quoc is roughly $1,087 below its typical fare of about $2,218. That is by far the largest dollar difference in the final ten, even though the ticket itself is also the most expensive among the top few deals.

December is an important part of the story. Vietnam Tourism identifies November through April as Phu Quoc's dry season, when skies are clearer and seas are generally calmer. That makes these dates much more useful than a similarly discounted ticket during the island's wetter months.

Eight nights also makes sense for the distance. This is not a trip where a cheap fare justifies flying halfway around the world for four days. The longer stay gives enough time for beaches, food, island drives and slower days without feeling that most of the holiday disappeared into transit.

Best for: travelers who want a major long-haul fare difference without compromising the season.

2. George Town, Cayman Islands

George Town is one of the easiest deals in this article to understand. The fare is $329 return versus roughly $616 typical, a difference of about $287.

The Cayman Islands officially place their dry season from December through April. Average temperatures also ease to around 27°C in December, so the Dec 12-17 dates arrive just as the seasonal weather pattern becomes more favorable.

Five nights is short, but it works for Grand Cayman better than it would for a long-haul city. This is the sort of trip where minimizing airfare and travel time can matter more than maximizing the number of nights.

Best for: a short Caribbean escape with one of the strongest fare-and-season combinations in the list.

3. Brussels, Belgium

At $432 return, Brussels is around $380 below a typical fare near $812. For a December transatlantic trip, that is already a strong number before the calendar enters the picture.

The dates make it considerably more interesting. Brussels Winter Wonders runs from November 27 through January 3, 2027, which means the entire Dec 6-13 trip lands during the city's main Christmas-market period.

The event spreads through the historic center with market stalls, lights and seasonal attractions, so this is not simply a cheap winter flight to a city that happens to be cold. The winter atmosphere is part of the point of going.

Best for: a Christmas-market trip where the fare and the calendar align unusually well.

4. Bridgetown, Barbados

The Bridgetown fare is $398 return compared with about $657 typical, a difference of roughly $259.

December also marks the beginning of the drier part of the year in Barbados. The tourism board describes the northern-hemisphere winter and spring as its drier season, with warm ocean temperatures throughout the year.

The early-December dates are useful because they arrive before the busiest Christmas travel period. Five nights is not long enough for an ambitious island itinerary, but it works well for a focused beach-and-food break.

Best for: an early-December Caribbean trip before holiday demand peaks.

5. Barcelona, Spain

Barcelona comes in at $422 return, around $261 below a typical fare near $683. That makes it one of the better absolute transatlantic prices in the final ten.

December is not beach season, despite the destination card carrying a beach tag. The stronger case is the city itself. Cooler weather makes long days on foot more comfortable, while the trip is long enough to combine architecture, museums, neighborhoods and food without rushing.

Eight nights also leave room for a day trip, which makes the fare more useful than it would be for a quick four-night European break.

Best for: a low-cost European city trip where sightseeing matters more than warm weather.

6. Amsterdam, Netherlands

Amsterdam is $444 return against a typical fare around $715, approximately $271 below typical.

The dates overlap directly with the Amsterdam Light Festival, which runs from November 26, 2026 through January 17, 2027. The Museumplein ice rink is also operating during the trip.

That matters because Amsterdam in December comes with obvious compromises: short daylight hours, cold weather and the possibility of rain. The seasonal events give travelers a reason to accept those conditions rather than simply tolerating them for a cheap ticket.

Five nights is also about right. There is enough time for museums, canals and evening light installations without requiring a long winter stay.

Best for: a compact European winter city break with specific December events already running.

7. Seoul, South Korea

The Seoul ticket is $922 return compared with a typical fare around $1,456, which works out to roughly $534 below typical. That makes it one of the larger dollar differences in the article.

December is properly cold. VisitKorea lists Seoul's average December high around 4.2°C and average low around -3.4°C. This is not a mild shoulder-season Asian city break.

That can still work well if the trip is built around food, neighborhoods, museums, shopping and indoor attractions rather than long outdoor days. Winter also produces a very different version of Seoul than the humid summer months.

The fare makes the most sense for travelers who already want Korea and are comfortable packing for real winter.

Best for: a long-haul city trip where airfare savings matter more than mild weather.

8. Barranquilla, Colombia

Barranquilla costs $467 return compared with roughly $728 typical, a difference of about $261.

The ten-night duration is one of the most useful parts of this fare. Barranquilla itself does not need ten full days for most visitors, so the ticket works better as an entry point for Colombia's Caribbean coast.

That gives travelers room to combine the city with other parts of the region instead of treating the airport destination as the entire holiday. December also brings warm tropical conditions, making this a fundamentally different trip from Brussels, Amsterdam or Zurich.

The caveat is that local transport and additional accommodation can increase the total cost once the trip expands beyond one city.

Best for: travelers who want to turn one fare into a broader Caribbean Colombia itinerary.

9. Zurich, Switzerland

The Zurich fare is $527 return, about $208 below a typical price near $735.

The percentage is smaller than most of the list, but the actual fare is still attractive for Switzerland in December. The city works well as either the trip itself or the start of a wider Swiss itinerary.

As with Geneva in the New York article, the biggest warning is total-trip cost. Hotels, food and transportation in Switzerland can easily outweigh the airfare difference, so the ticket should not be interpreted as evidence that the whole vacation will be cheap.

For travelers already planning Switzerland, however, reducing the flight to just over $500 removes one of the larger upfront costs.

Best for: travelers who already want a Swiss winter trip and care more about the ticket price than the percentage.

10. Puerto Natales, Chile

Puerto Natales has the smallest relative difference in the final ten, with a $1,186 fare against roughly $1,432 typical. That is about $246 below typical.

It stays in the article because December changes the value of the destination dramatically. Chile Travel identifies December through February as peak season for Torres del Paine, when days are longer, weather is more favorable and most trails are fully open.

Puerto Natales is the gateway rather than the final attraction. The reason to fly here is access to Torres del Paine and Chilean Patagonia, not an eight-night urban stay.

That also means this is not automatically a cheap trip. Park access, accommodation, transfers and guided activities can make Patagonia expensive even when the airfare is lower than usual.

But unlike a random discounted ticket in the wrong month, Dec 1-9 places the traveler at the beginning of exactly the season when this part of Chile becomes most practical to explore.

Best for: an adventure trip where seasonal timing matters more than the headline percentage.

Which Chicago December deal is actually strongest?

For pure fare difference, Phu Quoc wins. Nearly half off the typical fare translates into more than $1,000 of difference, and the dates fall inside the island's dry season.

For a shorter warm-weather trip, George Town is more straightforward. It costs only $329, sits 47% below typical and arrives at the start of the Cayman Islands' dry season.

For Europe, Brussels is the strongest combination of price and timing. The $432 fare is already good, but the fact that Dec 6-13 falls entirely inside Winter Wonders gives the trip a clear seasonal purpose.

Amsterdam is similar, while Barcelona is the stronger choice for travelers who want a longer city trip and care less about Christmas-market atmosphere.

Puerto Natales is the outlier. Its 17% difference looks modest beside the rest of the table, but December is one of the most useful times of the year to reach Torres del Paine. It is a reminder that the best fare is sometimes the one that gets you somewhere at exactly the right time.

Quick answers

What is the cheapest international flight deal from Chicago in December 2026?

George Town, Cayman Islands is the cheapest fare among the ten selected international deals at $329 return for travel from December 12 to 17.

Which Chicago December deal is furthest below its typical fare?

Phu Quoc is 49% below its typical fare, with a $1,131 return ticket compared with roughly $2,218 typical.

What is the best warm-weather deal from Chicago?

George Town has one of the strongest combinations of price and season at $329 return, with the trip beginning during the Cayman Islands' dry season.

Is December a good time to visit Phu Quoc?

Yes. Phu Quoc's dry season generally runs from November through April, making December one of the more reliable periods for beaches and outdoor plans.

Which European deal has the strongest December timing?

Brussels stands out because the Dec 6-13 dates fall directly inside Winter Wonders, which runs from November 27, 2026 through January 3, 2027.

Is Seoul cold in December?

Yes. Average December temperatures in Seoul range from roughly -3.4°C at night to about 4.2°C during the day.

Why include Puerto Natales when it is only 17% below typical?

Because December marks the beginning of peak season for Torres del Paine, with longer days, better access and more trails open than during the colder months.

Related reading

• 10 Best International Flight Deals From Chicago in November 2026
• 10 Best International Flight Deals From New York in December 2026
• 10 Best Flight Deals From Toronto in December 2026
• 10 Best Flight Deals From Vancouver in December 2026