Another from the current Frontier promo deal: Los Angeles to New York for $290 round-trip, including all taxes.
Searching FlyFrontier.com, we found seats departing LAX on Tuesday, September 16, returning from LGA on the following Saturday, September 20. Flights connect via Denver.
Other dates are also available for travel on Tuesdays, Wednesdays, and Saturdays, from August 20 through December 13. Just enter promo code RUREADY when booking to apply discount.
For booking info, see our Fare Details.