Delta's seasonal ATL-HND nonstop is the prize; Korean Air via ICN and United via SFO.
Delta operates a seasonal nonstop ATL-HND (roughly March-October) on the A350, covering the route in about 14 hours. Outside that window, the best alternatives are Korean Air ATL-ICN (13 h) with a 2-hour Seoul connection to NRT or HND, and United ATL-SFO-NRT with an overnight Pacific crossing. Atlanta to Tokyo fares move quickly, so flexible date checks usually save money.
American citizens enter Japan visa-free for 90 days. Register on Visit Japan Web before departure for faster processing. Haneda (HND) is 30 minutes from central Tokyo versus Narita's 60-80 minutes -- a major advantage if your final destination is the city. For Atlanta - Tokyo, review carrier mix (Delta, Korean Air, United, ANA (codeshare)) before choosing a fare bundle.
Transpacific fares from ATL bottom out in January-February and late October. Cherry blossom season (late March to early April) and Golden Week (late April to early May) are peak. Delta's nonstop sells out early during these periods; book 3+ months ahead. Atlanta - Tokyo planning works best when transfer times and baggage rules are checked together.
Seasonally, yes. Delta flies ATL-HND roughly March to October on the A350 (about 14 hours). Outside that season, connect via Seoul (Korean Air) or San Francisco (United).
Haneda is dramatically closer to central Tokyo (30 min vs 60-80 min). Delta's nonstop goes to Haneda. If connecting via Seoul on Korean Air, check whether your flight lands at HND or NRT.
No. US passport holders enter Japan visa-free for up to 90 days. Register on Visit Japan Web before departure for expedited immigration.