British Airways has round-trip flights from Austin (AUS) to London (LHR) for $418, NONSTOP. Flights October to May. Departures on Monday, Tuesday, Wednesday, and Sunday. 7-day minimum stay required.
Note: Carry-on bag is allowed for free, but there is a fee to check a bag, or select a seat. You can avoid seat selection fees by accepting the randomly assigned seat at the gate.
Note: Norwegian Air sometimes has sales on similar dates for about -$30 less. We recommend you avoid Norwegian Air for now, they seem to be on the verge of bankruptcy according to several sources [Skift, CondeNast]. A few other reasons to avoid Norwegian Air: Only 22-lbs allowed for free carry-on and No free meals. You’ll pay more to fly on Norwegian once the fees pile in.
Read More Nonstop Flights: Austin to London $418 r/t – British Airways