The journey took approximately 44.5 days. Guthmiller, who is 19, flew a 1981 Beechcraft A36 Bonanza. He stopped in 15 countries along the way. He's been using the trip to fundraise for Code.org, a nonprofit that offers free computer programming lesson plans for elementary and middle school teachers. (His website, Limitless Horizons is still open for donations.) Guthmiller himself studies programming at MIT.