I‘m assuming you’re in the USA. Have you looked into taking a bike with you?
British Airways will count your bike as checked baggage if under 23 kg. But do beware of ”code-sharing”
If you have the time, you could fly to London, take the train to Portsmouth, ferry to Le Havre, and ride west to east (tailwinds!) to Strasbourg for example. Just an idea. I did that a number of years ago. Great trip 😊