I'm planning to non rev on DL - BOS/LHR. Using S4 from FA "buddy" with 30 years @ DL. Traveling with 90 year old dad. I want to avoid terminal camping and other S4 horror stories by picking the best time to travel. First time using S4....am I nuts?

Looking at 5/27 #144 BOS LHR & back 6/1 #135 LHR BOS. How many options should I have for these flights? Will we be able to gate check luggage? Any other tips for using S4 pass? I know my friend's seniority will help but I'd like to increase my odds of getting on board (and up front?) any way possible.

Hotels all on points so very flexible.