Question: Which owner of Up has its hub at Ben Gurion Airport?
Context: Israir Airlines Ltd. (Hebrew: ישראייר‎ ‎ ), usually referred to as Israir, is an Israeli airline headquartered in Tel Aviv.  It operates domestic scheduled and air taxi flights from Sde Dov Airport, Haifa Airport, Ben Gurion International Airport, and Eilat Airport, as well as international charter services from Ben Gurion International Airport to Europe and Asia.  It also operates VIP flights, and is Israel's third-largest airline after El Al and Arkia Israel Airlines, employing some 350 staff. Nicodemus ben Gurion (Hebrew: נקדימון בן גוריון Nakdimon ben Gurion) was a wealthy Jew who lived in Jerusalem in the 1st century CE.  He is believed by some to be identical to the Nicodemus mentioned in the Gospel of John.  Elsewhere he is discussed in Josephus' history, "The Jewish War", and later, rabbinic works: Lamentations Rabbah, Ecclesiastes Rabbah, the Babylonian Talmud, and Avot of Rabbi Natan. The Civil Aviation Authority (CAA or CAAI, Hebrew: רשות התעופה האזרחית‎ , "Rashut Ha-Te'ufa Ha-ʿEzraḥit " ‎ ) is the national aviation authority of Israel.  It is a statutory authority which regulates aviation in the country.  The former Civil Aviation Administration, which was a department of the Ministry of Transport was converted into the present authority on May 13, 2005 following the guidelines set forth in the Civil Aviation Authority Law of 2005.  Its head office is in the Golan House building in the Airport City business park near Ben Gurion Airport; prior to 2010 its head office was on the airport grounds. Ben Gurion Airport Railway Station (Hebrew: תחנת הרכבת נמל התעופה בן גוריון‎ ‎ , "Tahanat HaRakevet Nemal HaTe'ufa Ben Gurion") is an Israel Railways station located in the lower level of Ben Gurion International Airport's Terminal 3.  The station opened in 2004, together with the opening of Terminal 3.  The railway line extending to the northwest from the station connects it to Tel Aviv and points north, while in the other direction from the station the railway splits south to Lod and southwest to Modi'in. Ben Gurion International Airport (Hebrew: נמל התעופה הבינלאומי בן גוריון‎ ‎ ; Arabic: مطار بن غوريون الدولي‎ ‎ ) (IATA: TLV, ICAO: LLBG) , often referred to as Natbag (נתב״ג ) is the main international airport of Israel and by far the busiest airport in the country, located 19 km to the southeast of Tel Aviv.  Named after Israel's first Prime Minister David Ben-Gurion, the airport serves as a hub for El Al, Israir Airlines, Arkia, Up and Sun D'Or.  In 2016, it handled approximately 18 million passengers, making it the 48th busiest airport in Asia.  Ben Gurion Airport is operated by the Israel Airports Authority, a government-owned corporation that manages all public airports and border crossings in Israel. CAL Cargo Airlines Ltd. (Hebrew: ק.א.ל.  קווי אוויר למטען‎ ‎ ) is an all cargo airline with its corporate headquarters in the Airport City development of Ben Gurion International Airport, Israel.  The airline operates daily scheduled cargo flights and charter services carrying nonstandard goods and general cargo internationally.  Its main base is Ben Gurion Airport, serving Tel Aviv, and it has a hub at Liège Airport (Belgium).  The airline carries approximately 100,000 tons of cargo annually including all categories of nonstandard cargo: temperature controlled pharmaceutical and healthcare products, live animals, dangerous goods, oversize and overweight cargo, fresh perishable products and valuable goods including fine art. Ramat David Israeli Air Force Base (ICAO: LLRD , Hebrew: בָּסִיס חֵיל-הַאֲוִיר רָמַת דָּוִד‎ "Basis Kheil HaAvir Ramat David") is one of three principal airbases of the Israeli Air Force, located southeast of Haifa, close to kibbutz Ramat David and Megiddo in the Jezreel Valley.  It was originally built as a Royal Air Force station in 1942 under the British Mandate when it was known as RAF Ramat David.  It is reported to be the most likely location for a new International airport to complement Ben Gurion Airport. The 2014 Ben Gurion Airport flight bans were a series of flight bans at Ben Gurion Airport in Israel due to the 2014 Israel–Gaza conflict. Up (styled as UP) is a low-cost brand of Israeli airline El Al. Sde Dov Airport (Hebrew: שדה דב‎ ‎ , "lit."  Dov Field, Arabic: مطار سدي دوف‎ ‎ ), also known as Dov Hoz Airport (Hebrew: נמל התעופה דב הוז‎ ‎ , "Nemal HaTe'ufa Dov Hoz", Arabic: مطار دوف هوز‎ ‎ ) (IATA: SDV, ICAO: LLSD) is an airport located in Tel Aviv, Israel which mainly handles scheduled domestic flights to Eilat and Uvda (a.k.a. Ovda), northern Israel (Haifa and the Galilee), and the Golan Heights.  It is the largest airport in Tel Aviv proper, and the second largest in the area, after Ben Gurion International Airport on the outskirts of Lod.  The airport is named after Dov Hoz, one of the pioneers of Jewish aviation.  The airport is expected to close by the end of 2018 after an agreement was struck re-purposing the land which houses it for residential apartments.  Commercial flights will move to Ben Gurion Airport.  The airport is a focus city for Arkia Israel Airlines and Israir Airlines.
Answer: El Al