Primera Air has begun daily flights from London Stansted to New York Newark using 757-200 aircraft. There's no direct competition on this route, but Air India, BA, United and Virgin Atlantic all fly to Newark from Heathrow.
Frontier's 3/week Denver-Pensacola route is the Florida city's first service from Denver. No other carrier flies this route. Frontier will also begin 2/week service to Pensacola from Chicago O'Hare in May, competing against United's 15/week service.