Flight
Flying from San Francisco to Athens is the cheapest option I have found. From Athens you can either fly into Santorini or take the Ferry (cheaper option). SFO to ATH 07/19-07/29. We will be flying out 7/19/2020 SFO to ORD: Flight 2691 ORD to ATH: Flight 1554 07/29/2020 ATH to LHR: Flight 0631 LHR to SFO: Flight 6188 Please note there is a 10 hr time difference so be sure to travel a few days prior to ensure the jet lag has worn off. :)
Hotel
This is a beautiful option and good price! Also super close to the Ceremony location!