Source: Southwest Adding 14 Flights in Denver: Financial News - Yahoo! Finance

Hmm, this is interesting, does anyone know if Southwest had flights between OKC and DEN before? I'm not sure, I think it did, but can't really remember. Competition on this route should get interesting now, so far, UA/UAX only had to deal with Frontier Jet Express, with Southwest coming on the route (and it being a popular airline with Oklahomans), should be interesting to see how this plays out. With UA/UAX, Frontier Jet Express and WN, OKC will have 11 daily departures to DEN, barring any changes from now.