Seoul is best in the shoulder season when the air is crisp and the crowds at the palaces thin out. You get the perfect mix of historic sites, vibrant street food, and modern energy without the stifling summer heat or biting winter winds.
To make the $3800 trip work for your budget, you can spread the cost over several months. Using the Citi Simplicity® Credit Card, you get 0% for 18 months on purchases and balance transfers from date of account opening, which makes your monthly payments a manageable $211.11.
The 18-month window is a deadline, not free money. If you have a balance remaining after the 0% period ends, the bank will start charging interest on whatever is left over.