Edinburgh is at its best in early spring when the grey stone buildings contrast with the first hints of green in the Princes Street Gardens. You will spend your days walking the Royal Mile and exploring the castle before the summer crowds arrive to clog the narrow closes.
A trip like this usually runs about $2800. You can use the Discover it® Cash Back to manage that cost. It offers 0% intro APR for 15 months on purchases and balance transfers, which gives you a long window to pay off your travel expenses without paying extra interest.
The 15-month window is a deadline, not a gift. If you still have a balance after those 15 months, the bank will start charging you interest on the remaining amount.