Norwegian Airlines offers nonstop service between Los Angeles LAX and London Gatwick Airport LGW. There are only two departure dates in May 2015 under $1,000 round trip. May 6 is the low departure date at $774 for a return on May 11, 13 or 14. Airfare does not drop under $1,000 again until September 5 when fares drop to $835 round trip. October sees another fare drop to $790 round trip.
November 2015 $625 fare Los Angeles LAX-LGW London Gatwick
In November fares drop to as low as $591 round trip, if you only want to be in London for a few days. More prevalent are $625 fares for a one week or longer stay. Norwegian does not discount for round trip tickets, so this is a great airline if you want to stay an extended period in London or Europe and buy a separate one-way ticket when you decide to return home.
Here is a $625 fare with departure on Tuesday, November 24 during Thanksgiving week 2015 and return the following Tuesday December 1.
Checked bag and seat assignment fees add up fast
You have to pay extra for checked bags on Norwegian and the carry-on maximum weight is 10kg. Fortunately, this LAX-LGW is a nonstop direct flight, meaning a checked bag is $42 each way.
Norwegian charges for seat reservations too and that adds $42 each way if you want to select your own seat for the LAX-LGW flight.
Los Angeles to London $625 fare increases to $709 with one checked bag round trip and $793 with a confirmed seat assignment purchased at time of booking. $793 approaches the price you may find from major carriers for travel in October or November and you get free checked bag and seat assignment with the major alliance airlines on international routes.
$625 all-in for round trip LAX-LGW is a good fare for London from Los Angeles if you can get by without a checked bag or self-selected seat assignment. $709 round trip to London is still a good deal.
Once you hit $793 the deal is not really a deal. Whether major carriers or Norwegian will drop airfare for fall 2015 travel to London remains to be seen. There has been quite an airfare battle over the past six months between major carriers in airports where Norwegian flies, but that has mostly been limited to Scandinavian airport routes. London is the big moneymaker market for the major airlines and sales to London are far less frequent.