Again, thanks to all who have responded, and I may not have made clear the purpose of the original post. It was not to find the lowest possible fare. But I was curious as to whether recent events in Europe and the outlook for continued low fuel price fares had impacted, hopefully a tad downward, fares for flight to Europe, and I found that, if anything, pricing seems higher.
One post expressed surprise that I would fly out of Lafayette--the airport is 15-20 minutes from my house, and we are serviced by Delta, United, and American. But again, I was looking for an apples-to-apples comparison. I generally find that fares out of Lafayette are competitive with those out of New Orleans and Baton Rouge (with the exception of some advance fares on Southwest out of New Orleans), and in my three trips to Europe in the past eight or so years (with the last trip in the summer of 2014), I have always flown out of Lafayette. (And with international travel, I generally book as far ahead as possible and try, when possible, to use American Express points).
I looked at the fares out of several cities to London for three different time periods in 2016. All of the time periods involve a Thursday departure and a Tuesday return (and I understand that flying on different days of the week could have lowered the fare by $50 or so.) This is what I found:
March 10-22
Delta--Lafayette (1,364), Baton Rouge (1,368), New Orleans (1,169), Atlanta (1,186)
United--Lafayette (1,364), New Orleans (1,163), Houston (1,137)
American--Lafayette (1,369), New Orleans (1,170), Dallas (1,415)
May 12-24
Delta--Lafayette (1,467), Baton Rouge (1,471), New Orleans (1,447), Atlanta (1,567)
United--Lafayette (1,367), New Orleans (1,189), Houston (1,190)
American--Lafayette (1468), New Orleans (1451), Dallas (1,508)
Oct. 6-18
Delta--Lafayette (1,467), Baton Rouge (1,471), New Orleans (1,442), Atlanta (1,533)
United--Lafayette (1,467), New Orleans (1,443), Houston (1,517)
American--Lafayette (1,468), New Orleans (1,452), Dallas (1,508)
Some of you have commented on the factors used by the airlines in setting fares. However, it is interesting that the fares out of the hub cities can be higher and that at times the fares charged by the airlines can be nearly identical. But again, my post raised a general question about fares for flights to Europe because of recent events.