https://www.usservicedogsregistry.org/AirlinePolicys/united-airlines 2017-12-30 https://www.usservicedogsregistry.org/AirlinePolicys/spirit-airlines 2017-12-30 https://www.usservicedogsregistry.org/AirlinePolicys/southwest-airlines 2017-12-30 https://www.usservicedogsregistry.org/AirlinePolicys/jet-blue-airlines 2019-12-09 https://www.usservicedogsregistry.org/AirlinePolicys/hawaiian-airlines 2019-12-09 https://www.usservicedogsregistry.org/AirlinePolicys/frontier-airlines 2017-12-30 https://www.usservicedogsregistry.org/AirlinePolicys/delta-airlines 2019-12-09 https://www.usservicedogsregistry.org/AirlinePolicys/american-airlines- 2017-12-30 https://www.usservicedogsregistry.org/AirlinePolicys/allegiant-air- 2017-12-30 https://www.usservicedogsregistry.org/AirlinePolicys/alaska-airlines- 2017-12-30