About time. TATL flights can be obscenely expensive, especially from smaller airports. It's not a function of distance; it's lack of competition. An example:
PVD-LHR on AA costs around $1,000 rt
PVD-DUB on AA costs around $375 rt
Norwegian serves the PVD-DUB route now, so it's no big surprise that we got a price drop from the the 3 legacy carriers on that route as well.
For comparison, MHT-DUB is $1,000 because, surprise, there's no competition there. The big 3 have an identical price for that route. Smells like price fixing...
Realistically, there's no compelling reason why PVD-LON should be significantly more expensive than PVD-LAX (heck, BOS-LGW is $275!). Sure, it's a bit farther to LON, but not hugely so. Yet the cost to LON is double. It's all down to lack of competition on many TATL routes (and perhaps APD tax at LHR).
Even PE is under pressure now. BOS-LGW on DY's PE product is $975. That's a 787 with 46" of pitch. BA's PE product on the BOS-LHR route (B747/A380/B777) only has 38" of pitch and a half inch narrower seat. And it's $200 more expensive.