Last year, Tokyo Haneda had the very best on-time performance (OTP) of any large airport around the world, according to OAG's Punctuality League. Haneda handles over 70 million passengers a year and 91.25 percent of its flights were on schedule. When it comes to the most reliable airlines for on-time performance, airBaltic tops the table for the second year in a row. An impressive 94.4 percent of flights operated by the Latvia's national carrier arrived within 15 minutes of their planned arrival time. American carriers are conspicuous by their absence from the list.