Route Briefing: Denver to Tokyo
Denver sits at a mile high, but Tokyo will make you feel like you've landed on another planet entirely — in the best possible way. The journey from DEN typically runs around 12 hours and 30 minutes with one stop, most commonly connecting through San Francisco or Los Angeles before crossing the Pacific. United Airlines, Japan Airlines, and ANA all serve this route well, and JAL and ANA in particular are consistently praised for their in-flight service and comfort — a genuine advantage when you're crossing an ocean. If you can snag a roundtrip fare under $700, grab it without hesitation. Standard pricing runs $900 to $1,200 or more, so booking three to five months ahead gives you the best shot at the lower end.
Tokyo is genuinely unlike anywhere else on earth. It holds more Michelin-starred restaurants than any other city in the world, yet you can eat extraordinarily well from a convenience store or a tiny ramen counter for just a few dollars. The city layers ancient and ultramodern with effortless confidence — one afternoon you're standing quietly in the grounds of Senso-ji temple in Asakusa, and by evening you're watching neon blur across the streets of Shinjuku. The neighborhoods each have their own distinct personality: Harajuku for fashion and youth culture, Yanaka for old-Edo atmosphere, Shibuya for the famous scramble crossing that somehow never gets old.
Timing matters enormously on this route. Late March through May is cherry blossom season, and it's genuinely magical — but prices and crowds reflect that. Book as early as possible if spring is your target. July and August are peak summer, lively but hot and humid. If you want a quieter, more affordable visit, autumn — roughly October and November — brings stunning foliage and comfortable temperatures without the same demand surge.
From Narita Airport, the Narita Express train connects directly to central Tokyo stations including Shinjuku and Shibuya, making it one of the smoothest airport-to-city arrivals you'll experience anywhere. Haneda Airport sits even closer to the city center and is well served by both train and monorail connections.
The single best tip for this trip: get a prepaid IC card like a Suica or Pasmo as soon as you arrive. It works on virtually every train, subway, and bus in Tokyo, and you can even use it at many convenience stores and vending machines. It eliminates the friction of buying individual tickets and lets you move through the city the way locals do — which, in Tokyo, is the whole point.