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How to Book a Trip to Seoul and Jeju Island

How to · Travel

How to Book a Trip to Seoul and Jeju Island

Plan your South Korea trip for September weather, cheaper flights, and a clear payment timeline.

VoAtlas editorial Updated · 3 min read
Typical cost $4,500 before anything else
Across the 0% window $300.00/mo 15 months, no interest

How we got that: $4,500 spread evenly across the 15-month introductory window on the Discover it® Cash Back. Checked · at the bank Carry a balance past the window and the standard APR applies to what is left.

Seoul gives you massive night markets, quiet side alleys, and palaces right next to glass skyscrapers, while Jeju Island trades the city for volcanic rock, tangerine orchards, and coastal walking paths. September is the sweet spot because the summer humidity breaks into crisp autumn air, and flight prices drop below peak summer rates before the fall foliage crowds show up.

A typical trip costs about $4500 for flights, hotels, and daily expenses. Spreading that total out over time can make the upfront booking easier on your bank account if you time it right.

The 0% intro APR for 15 months on purchases and balance transfers is a deadline, not free money. If you still have a balance left when those 15 months are up, interest kicks in on the remaining amount.

The steps

  1. 01

    Lock in September dates

    Aim for mid to late September to catch the best weather and post-summer flight dips. Book your transpacific flights about three to four months ahead to avoid sudden price spikes.

  2. 02

    Split Seoul and Jeju

    Spend four days in Seoul eating street food and exploring neighborhoods, then take a quick budget hopper flight down to Jeju for three or four days of nature. Keep your hotels booked in advance since September is a popular time for local weekend trips too.

  3. 03

    Use your card's intro window

    The Discover it® Cash Back gives you 0% intro APR for 15 months on purchases and balance transfers. That means you pay zero interest if you cover the costs within that timeframe.

  4. 04

    Set a monthly payment target

    If you spend the typical $4500, break it down into manageable chunks. You need to pay about $300.00 per month to clear the balance before the intro window runs out.

  5. 05

    Grab local transit cards

    Pick up a T-money card as soon as you land at Incheon for the subways and buses. It saves you from fumbling with cash every time you move across the city.

  6. 06

    Check the card terms before you commit

    Every figure we publish for the Discover it® Cash Back carries the date a person verified it against Discover and a link to where they checked. Intro windows and APRs change without notice, so confirm the current terms before applying.

    See Discover it® Cash Back terms →

Common questions

How much does a trip to Seoul and Jeju cost?

A typical US cost sits around $4500 for flights, lodging, food, and domestic travel between the mainland and the island. You can trim that down by booking budget accommodations or flying mid-week.

Why go to South Korea in September?

September brings clear skies, comfortable walking temperatures, and lower flight prices compared to the humid summer or peak cherry blossom spring season.

How do I get from Seoul to Jeju Island?

You take a short domestic flight from Gimpo Airport in Seoul to Jeju International Airport. Flights run constantly throughout the day and take just over an hour.

What happens if I don't pay off the $4500 in 15 months?

The card's standard variable purchase APR will apply to whatever is left over when the 15 months end. That is why hitting that monthly target matters so much.