X
{| class="wikitable sortable"
! style="text-align:left; width:4em;" | IATA
! style="text-align:left; width:5em;" | ICAO
! style="text-align:left;" | Airport name
! style="text-align:left;" | Location served
<!-- comments added to prevent addition of incorrect IATA codes -->
|- class="sortbottom"
! colspan="4" style="text-align:left; background:#DDDDDD;" | -XA-
<!-- XAB (Abbeville - Buigny-Saint-Maclou Aerodrome, Abbeville, France) deleted. No airport with IATA code of XAB. See http://www.iata.org/publications/Pages/code-search.aspx. Retrieved 26 April 2016 -->
<!-- XAC (Arcachon – La Teste-de-Buch Airport, Arcachon, France) deleted. No airport with IATA code of XAC. See http://www.iata.org/publications/Pages/code-search.aspx. Retrieved 26 April 2016 -->
|-
| XAI || ZHXY || Xinyang Minggang Airport || Xinyang, Henan, China
|-
| XAL || || Álamos Airport || Álamos, Sonora, Mexico
|-
| XAP || SBCH || Serafin Enoss Bertaso Airport || Chapecó, Santa Catarina, Brazil
|-
| XAR || DFOY || Aribinda Airport || Aribinda, Burkina Faso
|-
| XAU || SOOS || Saül Airport || Saül, French Guiana
|- class="sortbottom"
! colspan="4" style="text-align:left; background:#DDDDDD;" | -XB-
|-
| XBB || || Blubber Bay Seaplane Base || Blubber Bay, British Columbia, Canada
|-
| XBE || || Bearskin Lake Airport (TC: CNE3) || Bearskin Lake, Ontario, Canada
|-
| XBG || DFEB || Bogande Airport || Bogandé, Burkina Faso
|-
| XBJ || OIMB || Birjand International Airport || Birjand, Iran
<!-- XBK (Bourg - Ceyzériat Airport, Bourg-en-Bresse, France) deleted. No airport with IATA code of XBK. See http://www.iata.org/publications/Pages/code-search.aspx. Retrieved 26 April 2016 -->
|-
| XBL || HABB || Bedele Airport (Buno Bedele Airport) || Bedele, Ethiopia
|-
| XBN || || Biniguni Airport || Biniguni, Papua New Guinea
|-
| XBO || DFEA || Boulsa Airport || Boulsa, Burkina Faso
<!-- XBP is FAA code (not IATA) for Bridgeport Municipal Airport in Bridgeport, Texas, United States -->
|-
| XBR || || Brockville Regional Tackaberry Airport (TC: CNL3) || Brockville, Ontario, Canada
|- class="sortbottom"
! colspan="4" style="text-align:left; background:#DDDDDD;" | -XC-
|-
| XCH || YPXM || Christmas Island Airport || Christmas Island, Australia
|-
| XCL || || Cluff Lake Airport (TC: CJS3) || Cluff Lake, Saskatchewan, Canada
|-
| XCM || CYCK || Chatham-Kent Airport || Chatham-Kent, Ontario, Canada
|-
| XCN || || Coron Airport || Coron, Philippines
|-
| XCO || YOLA || Colac Airport || Colac, Victoria, Australia
|-
| XCR || LFOK || Châlons Vatry Airport || Châlons-en-Champagne, Champagne-Ardenne, France
<!-- XCY (Château-Thierry Belleau Airport, Château-Thierry, France) deleted. No airport with IATA code of XCY. See http://www.iata.org/publications/Pages/code-search.aspx. Retrieved 26 April 2016 -->
|- class="sortbottom"
! colspan="4" style="text-align:left; background:#DDDDDD;" | -XD-
<!-- XDA (Dax - Seyresse Airport, Dax, France) deleted. No airport with IATA code of XDA. See http://www.iata.org/publications/Pages/code-search.aspx. Retrieved 26 April 2016 -->
|-
| XDE || DFOU || Diébougou Airport || Diébougou, Burkina Faso
|-
| XDJ || DFCJ || Djibo Airport || Djibo, Burkina Faso
<!-- XDK (Dunkerque - Les Moëres Airport, Dunkerque, France) deleted. No airport with IATA code of XDK. See http://www.iata.org/publications/Pages/code-search.aspx. Retrieved 26 April 2016 -->
|- class="sortbottom"
! colspan="4" style="text-align:left; background:#DDDDDD;" | -XE-
|-
| XEN || ZYXC || Xingcheng Airport || Xingcheng, Liaoning, China
<!-- XEP (Épernay - Plivot Airport, Épernay, France) deleted. No airport with IATA code of XEP. See http://www.iata.org/publications/Pages/code-search.aspx. Retrieved 26 April 2016 -->
<!-- XEQ (Tasiusaq Heliport (Kujalleq), Tasiusaq, Greenland) deleted. No airport with IATA code of XEQ. See http://www.iata.org/publications/Pages/code-search.aspx. Retrieved 26 April 2016 -->
|-
| XES || || Grand Geneva Resort Airport (FAA: C02) || Lake Geneva, Wisconsin, United States
|- class="sortbottom"
! colspan="4" style="text-align:left; background:#DDDDDD;" | -XF-
|-
| XFN || ZHXF || Xiangyang Liuji Airport || Xiangyang, Hubei, China
|-
| XFW || EDHI || Hamburg Finkenwerder Airport || Hamburg, Germany
|- class="sortbottom"
! colspan="4" style="text-align:left; background:#DDDDDD;" | -XG-
|-
| XGA || DFOG || Gaoua Airport || Gaoua, Burkina Faso
|-
| XGG || DFEG || Gorom Gorom Airport || Gorom-Gorom, Burkina Faso
|-
| XGN || FNXA || Xangongo Airport || Xangongo, Angola
|-
| XGR || CYLU || Kangiqsualujjuaq (Georges River) Airport || Kangiqsualujjuaq, Quebec, Canada
|- class="sortbottom"
! colspan="4" style="text-align:left; background:#DDDDDD;" | -XI-
|-
| XIC || ZUXC || Xichang Qingshan Airport || Xichang, Sichuan, China
|-
| XIE || || Xienglom Airport
</references>
- - includes IATA codes
- Aviation Safety Network - IATA and ICAO airport codes
- Great Circle Mapper - IATA, ICAO and FAA airport codes