These Europe specials aren’t exactly cheap but you will fly in luxury and there are no blackout dates.
- Atlanta – London, from $2194 one-way
- Boston – London, from $1728 one-way
- Detroit – London, from $2070 one-way
- Memphis – Amsterdam, from $2590 one-way
- Miami – London, from $2082 one-way
- New York – Barcelona/Madrid, from $1800/$1813 one-way
- Salt Lake – Paris, from $2604 one-way
There is no ‘book by’ date but you must book 30 or 50 days in advance, and usually the longer you book in advance, the cheaper it is. See Delta for more info – and see FareCompare for cheap flights anywhere.