Last week's sale from Norwegian Air has now been extended through Friday, September 14.
Fares are valid for travel from October 31 through March 31 (holidays excluded, of course).
One-way fares start at $99 from the East Coast, and $149 from Midwest and West Coast cities.
Be sure to check our fare details for specifics.
New York to Paris $293 roundtrip
New York to Madrid $313 roundtrip
Los Angeles to Paris $378 roundtrip
Los Angeles to Rome $378 roundtrip
Chicago to London $336 roundtrip
Boston to Paris $293 roundtrip
Boston to London $326 roundtrip
Oakland to Paris $325 roundtrip
Oakland to London $369 roundtrip
Orlando to Paris $404 roundtrip
Orlando to London $389 roundtrip
For a complete list of fares, see our listings for London, Paris, Rome, and Madrid.