Exhibit 21

Expedia, Inc.’s subsidiaries

As of December 31, 2015

U.S. Subsidiaries	Jurisdiction
Activity Information Center, Inc.	United States – HI
BedandBreakfast.com, Inc.	United States – CO
CarRentals.com, Inc.	United States – NV
Classic Vacations, LLC	United States – NV
Cruise, LLC	United States – WA
CruiseShipCenters Holdings Inc	United States – NV
CruiseShipCenters USA Inc.	United States – NV
Decolar.com, Inc. 16.36%	United States – DE
DN Holdings LLC	United States – DE
EAN.com, LP	United States – DE
Egencia APAC Holdings, Inc.	United States – WA
Egencia LLC	United States – NV
EXP Global Holdings, Inc.	United States – DE
Expedia Global, LLC	United States – NV
Expedia, Inc.	United States – WA
Expedia LX Partner Business, Inc.	United States – DE
Fivepals, Inc. (30.54% ownership)	United States – DE
Gogobot, Inc. (15% ownership)	United States – DE
HomeAway Holdings, Inc.	United States – DE
HomeAway Software. Inc.	United States – DE
HomeAway.com, Inc.	United States – DE
HMS 1 Inc.	United States – DE
Hotels.com GP, LLC	United States – TX
Hotels.com, L.P.	United States – TX
Hotwire, Inc.	United States – DE
HRN 99 Holdings, LLC	United States – NY
IAC/Expedia Global, LLC (50% ownership)	United States – DE
Interactive Affiliate Network, LLC	United States – DE
Internetwork Publishing Corporation	United States – FL
Lodging Partner Services LLC	United States – DE
Mobiata, LLC	United States – MN
Neat Group Corporation	United States – DE
O Holdings Inc.	United States – DE
Orbitz Away LLC	United States – DE
Orbitz Financial Corp.	United States – DE
Orbitz For Business, Inc.	United States – DE
Orbitz Travel Insurance Services, LLC	United States – DE
Orbitz Worldwide Finance Company, LLC	United States – DE

Orbitz Worldwide, Inc.	United States – DE
Orbitz Worldwide, LLC	United States – DE
Orbitz, Inc.	United States – DE
Orbitz, LLC	United States – DE
OWW Fulfillment Services, Inc.	United States – TN
Premier Getaways, Inc.	United States – FL
Room 77, Inc. (6.1% ownership)	United States – DE
T-16 Holdings, LLC	United States – DE
Tickengo, Incorporated (14.9% ownership)	United States – DE
Travelscape, LLC	United States – NV
Trip Network, Inc.	United States – DE
WWTE, Inc.	United States – NV
Foreign Subsidiaries	Jurisdiction
1 to 1 Cruises Inc.	Canada
1760335 Ontario Inc. D.B.A. Canadastays.com (14.7% ownership)	Canada
A.C.N. 079 010 772 Pty Ltd	Australia
AAE (Thailand) Limited*	Thailand
AAE Japan K.K.	Japan
AAE Travel Pte. Ltd. (JV – 75% ownership)	Singapore
AAE Travel Services India Private Limited	India
Andaman Graphics Co., Ltd.	Thailand
Arnold Travel Technology (NZ) Limited	New Zealand
Arnold Travel Technology Pty Limited	Australia
Asia Web Direct (HK) Limited	Hong Kong
Asia Web Direct (M) Sdn. Bhd.	Malaysia
Asia Web Direct Co., Ltd	Thailand
Asia Web Direct Tours & Activities Co., Ltd.	Thailand
Aspirasi Ventura Sdn Bhd*	Malaysia
Auto Escape Group (SAS)	France
Auto Escape Nordics AS	Norway
Auto Escape S.A.S.	France
AWD-BT Limited	Thailand
BEX Travel Korea Co. Ltd.	Korea
BEX Travel Malaysia Sdn. Bhd.*	Malaysia
B264 GmbH	Germany
Base7booking.com Sarl (trivago GmbH owns 52.3%)	Switzerland
Bookabach Ltd. (75% Ownership)	New Zealand
Car Del Mar Ferienautovermietung GmbH	Germany
CarRentals K.K.	Japan
Cheap Tickets Ltd.	United Kingdom
Clear Summit Sdn Bhd*	Malaysia

CruiseShipCenters Canada Inc.	Canada
CruiseShipCenters International Inc.	Canada
CruiseShipCenters Western Canada Ltd.	Canada
CSC Holdings Inc.	Canada
CSC Travel Group Inc.	Canada
CT Partners Pty Ltd. (15.8% ownership)	Australia
ebookers Limited	United Kingdom
ebookers Scandinavia AB	Sweden
ebookers.com Deutschland Gmbh	Germany
ebookers.com SA	Switzerland
ebookers.ie Ltd	Ireland
Ebookers.nl BV	Netherlands
Egencia (China) Information Technology Co., Ltd.	China
Egencia (Shanghai) Travel Service Co., Ltd.*	China
Egencia (Shanghai) Travel Service Co., Ltd. Beijing Branch*	China
Egencia (Shanghai) Travel Service Co., Ltd. Jing’an Branch*	China
Egencia Australia Pty Ltd	Australia
Egencia Belgium SA	Belgium
Egencia Canada Corp.	Canada
Egencia Cayman Holdings Ltd	Cayman Islands
Egencia Europe SAS	France
Egencia France SAS	France
Egencia GmbH	Germany
Egencia Holdings UK Ltd.	UK
Egencia Hong Kong Limited	Hong Kong
Egencia KK	Japan
Egencia Singapore Pte. Ltd.	Singapore
Egencia Travel India Private Limited	India
Egencia UK Ltd.	United Kingdom
EXP Holdings Luxembourg S.A.	Luxembourg
Expedia (Thailand) Limited	Thailand
Expedia Alpha Y.K.	Japan
Expedia Argentina S.R.L.	Argentina
Expedia Asia Holdings Mauritius	Mauritius
Expedia Asia Pacific Limited	Hong Kong
Expedia Asia Pacific-Alpha Limited	Cayman Islands
Expedia Asia Pacific-Delta Limited	Cayman Islands
Expedia Asia Pacific-Gamma Limited	Cayman Islands
Expedia Asia Pacific-Iota Limited	Cayman Islands
Expedia Australia Holdings Pty Ltd	Australia
Expedia Australia Investments Pty Ltd	Australia
Expedia Australia Pty. Ltd.	Australia
Expedia Canada Corp.	Canada

Expedia Colombia SAS	Columbia
Expedia Consulting Service (Beijing) Co., Ltd.	China
Expedia Consulting Service (Beijing) Co., Ltd. Shanghai Branch	China
Expedia Consulting Service (Beijing) Co., Ltd. Shenzhen Branch	China
Expedia Consulting Service (Beijing) Co., Ltd. Guangzhou Branch	China
Expedia do Brasil Agencia de Viagens e Turismo Ltda.	Brazil
Expedia Finland OY	Finland
Expedia France s.a.s.	France
Expedia FZ — LLC	United Arab Emirates (Dubai)
Expedia Greece Travel Support Services EPE	Greece
Expedia Holdings K.K.	Japan
Expedia Holdings s.a.s.	France
Expedia Italy SRL	Italy
Expedia Korea Co., Ltd.	Republic of Korea
Expedia Lodging Partner Services Dominican Republic, S.R.L.	Dominican Republic
Expedia Lodging Partner Services Sarl	Switzerland
Expedia Mexico, S de R. L. de C.V.	Mexico
Expedia New Zealand Limited	New Zealand
Expedia Omega K.K.	Japan
Expedia Online Travel Services India Private Limited	India
Expedia Philippine Representative Office	Philippines
Expedia Poland Sp. z o.o.	Poland
Expedia Portugal, Unipessoal, Lda	Portugal
Expedia s.a.	Belgium
Expedia Services CZ s.r.o	Czech Republic
Expedia Services SAS	France
Expedia Sigma K.K.	Japan
Expedia Singapore Pte. Ltd.	Singapore
Expedia Southeast Asia Pte. Ltd.	Singapore
Expedia Spain, S.L.	Spain
Expedia Sweden AB	Sweden
Expedia.com GmbH	Germany
Expedia.com Limited	United Kingdom
Expedia.nl B.V.	Netherlands
ExpediaTurkey Seyahat Destek Hizmetleri Limited Sirketi	Turkey
Extensive Region Travel Network Limited Company	Taiwan
Ferieverden AS	Norway
Flairview Travel Hotel Club RATESTOGO Branch	France
Flairview Travel — Hotelclub SL	Spain
Flightbookers Limited	United Kingdom
Go Do Pty Ltd	Australia
Hao Tai Ke Business Consulting (Shanghai) Co., Ltd.	China

Remar Bilgi Teknolojileri Turizm ve Pazarlama A.Ş. (12.9% Ownership)	Turkey
Homeaway Pte. Ltd.	Singapore
Homeaway Pty Ltd	Australia
HomeAway SARL	Switzerland
HomeAway SARL (Ireland) Branch	Ireland
HomeAway Australia Holdings Pty Ltd	Australia
HomeAway Columbia SAS	Colombia
HomeAway Deutschland, GmbH	Germany
HomeAway Italia Srl	Italy
HomeAway France Sarl	France
HomeAway Netherlands Holding B.V.	Netherlands
HomeAway Spain S.L.	Spain
HomeAway Thailand Limited	Thailand
HomeAway UK Ltd.	United Kingdom
Hotelclub Limited	United Kingdom
HotelClub New Zealand Pty Limited	New Zealand
HotelClub Pty Limited	Australia
HotelClub Pty Limited — Hong Kong Branch	Hong Kong
HotelClub Pty Limited — Rome Branch	Italy
HotelClub Pty Limited — Singapore Branch	Singapore
Hotels (TR) Limited	United Kingdom
Hotels.com India Private Limited	India
Hotels.com Korea Co., Ltd.	Korea
Hotelz Y.K.	Japan
Insurancebookers Limited	United Kingdom
Interactive Domain Name Holdings Corporation	Canada (Nova Scotia)
L’Agence Voyages-SNCF.com SAS (49.9% ownership)	France
La Compagnie Des Voyages SA	France
Lastminute.com.au Pty Limited	Australia
LateStays Co., Ltd.	Thailand
LLC Partner Services Group	Russia
Lodging Partner Services Costa Rica, S.R.L.	Costa Rica
Lodging Partner Services Denmark ApS	Denmark
Lodging Partner Services Egypt LLC	Egypt
Lodging Partner Travel Sdn. Bhd.*	Malaysia
Millennial Travel Pte Ltd	Taiwan
MyHotelShop GmbH (trivago GmbH owns 61.3%)	Germany
Occupancy Pty Ltd	Australia
Orbitz (Israel) Ltd	Israel
Orbitz Argentina S.R.L.	Argentina
Orbitz India Services Private Limited	India
Orbitz Mexico Services, S. de R.L. de C.V.	Mexico
Orbitz Worldwide (Europe), S.L.U.	Spain

Orbitz Worldwide (UK) Limited	United Kingdom
Owners Direct Holiday Rentals, Limited	United Kingdom
Oy ebookers Finland Ltd (Oy Lloyd Tours Ltd)	Finland
Partner Services Group Travel South Africa Pty Ltd	South Africa
Phuket Dot Com Ltd	Thailand
PT Lodging Partner Services Indonesia	Indonesia
Qualimídia Veiculação e Divulgação Ltda	Brazil
Quebec CruiseShipCenters Inc.	Canada
Standby Holdings Pty Ltd	Australia
Stayz Pty Ltd	Australia
Swetra Group AB	Sweden
Terren Corporation	Canada
TGO (Thailand) Limited	Thailand
The Tourism Representative Office of Expedia Lodging Partner Services Sarl in Ho Chi Minh City	Vietnam
Travel Acquisition Corporation Pty. Ltd.	Australia
Travel Partner Exchange S.L.U.	Spain
Travel.com.au Pty Ltd	Australia
Traveldoo SAS	France
Traveldoo UK Limited	United Kingdom
Travelmax Pty Ltd	Australia
Travelmob Pte Ltd	Singapore
Trivago (Shanghai) Information Consulting Co., Ltd.	China
Trivago GmbH (~63% ownership)	Germany
Trivago Hong Kong Limited	Hong Kong
Trivago Services B.V.	Netherlands
Trivago Spain, S.L.	Spain
Tron Newco GmbH	Germany
Tujia.com International Limited (9.86% ownership)	Cayman Islands
VacationSpot S.L.	Spain
Venere Net S.r.l.	Italy
Venere UK Limited	United Kingdom
VIA Egencia AS	Norway
VIA Egencia Denmark A/S	Denmark
VIA Egencia Finland Oy	Finland
VIA Egencia Norway AS	Norway
VIA Egencia Philippines Inc.	Philippines
VIA Egencia Sweden AB	Sweden
Wotif.com (NZ) Limited	New Zealand
Wotif.com Holdings Limited Representative Office	Indonesia (Bali)
Wotif.com Holdings Pty. Ltd.	Australia
Wotif.com Inc.	Canada
Wotif.com Limited	United Kingdom

Wotif.com Pte. Ltd.	Singapore
Wotif.com Pty. Ltd.	Australia
Wotif.com Sdn. Bhd.	Malaysia
Wotif.com Share Administration Pty Ltd	Australia
WWTE Travel Limited	Ireland
WWTE Travel S.à r.l.	Luxembourg
WWTE, Inc. Taiwan Representative Office	Taiwan

* Expedia holds no equity ownership interest in this entity; however Expedia has effective ownership control through various contractual arrangements.