I know this is a pricey option but anytime we have flown with our now 21 month old, we flew first class, two seats for us and him as a lap infant. We are older parents and the comfort came in handy for our sanity. No regrets. We did lay down seats to Hawaii too so he could nap on my husband. We do bulkhead if no lay down seats. The extra room helps! We used baby headphones with him and brought his favorite toy from home. We are doing economy plus international once he’s two later this year... we are hoping by then, he will be into tablets a little more and we won’t need the extra room. We also bought an inflatable “stool” of sorts off of Amazon that goes on the feet area, converting it into a lay down area for a toddler.
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