Since the date originally posted, this lounge has been remodeled. Click here to see the review of the lounge as it looks now.
When it was time to leave Bangkok I was actually looking forward to it. I really enjoyed my stay at the Sheraton Grande Sukhumvit. The Executive Lounge at the JW Marriott was a real treat. And the Songkran (Thai New Year) celebrations, though small and scattered, were fun to watch .
In spite of the good times, I was thinking of the flights back to the US on Korean Air, especially the A380 flight from Seoul, Korea (ICN) to New York, NY (JFK). The first flight, Bangkok to Seoul, gave me a chance to spend a little time in the SkyTeam lounge at BKK.
Like almost all airlines at BKK, China Eastern being a notable exception, Korean Air provides passengers in premium cabins with a pass to use the shorter and faster Premium Lane through security and passport control.
Suvarnabhumi (silent i) is a large airport so Korean Air also supplies a map to the lounge. The AF/KLM lounge serves SkyTeam business class and Elite Plus passengers. On the diagram below, the path to the left is the Premium Lane for security and passport control. The distance to the lounge looks short on the map but takes a good seven minutes of brisk walking assuming one avoids stopping at one of the many the enticing duty-free shops.
Once through passport control, what I call the Thai dragon/serpent awaits. Actually, this is a representation of the churning of the cosmic ocean (explanation is beyond the scope of this post). 
The AF/KLM lounge is located on the F Concourse one level down from the shops and one level up from the gates. This lounge is open 24/7.
For a long time this lounge was a Delta lounge until Delta stopped service to BKK in 2016. The decor has remained unchanged for years but the food and beverages have been improved greatly.
The main seating areas and newspaper and magazine rack are to the left of the entrance and check-in area.
AF/KLM added massage chairs that are located in a corner of the lounge overlooking Concourse F.
There is a coffee and light snack station in this seating area.
A business center is next to the seating area.
To the right of the entrance is the buffet and dining area. The food and beverages are worthy of any international business-class lounge.
The restrooms and showers are located behind the food service area. The showers and bathrooms are in bad shape. That and an update to the decor is probably why this lounge is now closed for renovations. Lounge Buddy, a great app for finding lounges at airports worldwide, reports that the AF/KLM lounge is closed for renovations until August 17, 2017. The lounge actually reopened on October 19, 2017. See the review Here.
Those flying first class on Korean Air use the CIP lounge near the gates on the F Concourse.
Final Thoughts
When the AF/KLM lounge reopens we can hope it will look something like the F Concourse CIP lounge.
Other posts from this trip:
Delta CRJ 900 First Class, Charlotte, NC (CLT) to New York, NY (JFK) and a “Midfield” Takeoff
Delta Airlines SkyClub, New York, NY (JFK) Terminal 4
China Eastern 777-300 Business Class, New York, NY (JFK) to Shanghai, China (PVG)
Transfer at Shanghai, China (PVG) and China Eastern VIP Lounge, Terminal 1
Bangkok Hotel Review – The Sheraton Grande Sukhumvit, A Starwood Luxury Collection Hotel
Bangkok Hotel Review –JW Marriott, The Best Hotel Lounge Buffet?
Korean Air 777-300ER Business Class, Bangkok, Thailand(BKK) to Seoul/Incheon, Korea (ICN)
Salsaworldtraveler'sblog 
I didn’t realise there were massage chairs in this lounge even though I have been a few times. Thanks for the tip!
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Checkout my review of the remodeled lounge. There are new massage chairs. https://salsaworldtraveler.com/2018/05/26/a-priority-pass-lounge-review-remodeled-air-france-klm-lounge-suvarnabhumi-airport-bangkok-thailand-bkk/
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