So, if you’re okay checking bags with your poles from London to Athens, what’s the issue with checking them in at SEA for your trip to LHR? Unless you have two different airlines in play from SEA to LHR, where you’re changing to a non-codeshare flight type of arrangement at ORD, your bags would normally be checked all the way through to LHR, meaning you would not need to collect them in ORD for rechecking. What am I missing?
Anyway, regarding the previous reply, something like 1 in 150 passengers will have their checked bags lost, stolen, or damaged. Chances are with you that your checked bags will make it with no problem, but statistics show that there’s a decent chance your bag will be delayed. You need to think in advance about what you’ll do if your bag doesn’t get to London until you have already departed for Greece. If your bag is delayed on your trip home, who cares? But if it’s delayed on the front-end, it could cause you a few issues. As suggested, have enough of the critical clothing for a day or two in your carry-on. Any delay beyond that will require some extra work and planning on your part. I’ve had friends and colleagues whose bags were so delayed, they were back home before their bags finally arrived (back home).
Personally, I like previous suggestions to carry-on and buy cheaper walking poles there. You can always donate them to someone else who is about to buy new ones, leave them someplace that can use them, throw them away, recycle them, or check them for the trip home.
I never check, ever. Overhead bins full, and checking is required? No problem, my bag fits under the seat. It doesn’t matter where I’m going or how long I’ll be there, it’s always the same bag, and I will never check. Happy travels!