In short, no.
well, unless you have a super early morning flight you need to catch, or you want to spend the last day shopping at the factory outlet mall near the airport - in which case you stay at an airport hotel.
sorry for the typo error there -- first sentence should read -- got your message loud and clear!!
Sorry, it's just that my phone battery was out. You can switch hotels, from the one in Kyoto to the one in Osaka, if you like, but in terms of airport access, the change won't necessarily mean better.
Kyoto and Osaka are seamless one huge Kansai urban region, connected internally by several railway lines. Changing hotels means changing from one area to another in a huge urban region, which is not really worth the effort and time.
You can of course visit Osaka by staying in Kyoto, or the other way around; it's just about 30-40 minutes in commuter train costing around 500 yen by JR, Keikan, or Hankyu.
Airport access to Kansai International Airport from both Kyoto and Osaka (Umeda and Namba are two centers of Osaka) are equally good; access from Kyoto takes slightly longer, but it's just a matter of 20 minutes or so. Where exactly you'd stay in large Kyoto and large Osaka cities matter than the big question Kyoto or Osaka.
There are JR Ltd Exp Haruka and Limobus options from Kyoto (Kyoto Station and Shijo-Karasuma); from Umeda in Osaka, Limobus; from Namba in Osaka, Nankai Rap:t and Limobus. From Tennoji and Shin-Osaka, take the aforementioned Ltd Exp Haruka. Taxi is out of realistic option as KIX is quite away. All schedules and fares are online on the official websites.Edited: 12 May 2018, 07:46
Osaka, Kyoto, Nara, and Kobe have unique characters. Osaka tends to be vibrant, colorful, cheerful, down-to-earth, cheesy, naughty, heartwarming, a bit nostalgic, and budget-friendly. It's a city of commerce and industry, takoyaki, okonomiyaki, kushikatsu, yakiniku, fugu among other foods, slapstick comedy, and Hanshin Tigers. It was founded by Hideyoshi, a genius who rose to supreme power and achieved incredible wealth from the lowest echelons of society.
Wow -- thank you for such a comprehensive description of the area. I think we'll take your advice and stay in Kyoto for the 4 nights but take a day trip to Osaka after our official tour is over. I think the hotel for the tour is the Kyoto Tokyu Hotel so maybe we can extend our stay here for on more night.
Many thanks, I appreciate your information.