How to get a refund with United Airlines? For cancellations and refunds, contact United ??????????????????????????????????!!????????????!!????????????!!???????????????? (OTA) Or Toll-Free 1-866-884-3314????(????????????-????????????????????????????????) [No-Busy Air] Quick Connect.... United ?????????????????????????????? refunds for cancellations are handled at ??????!!????????????!!????????????!!???????????????? (OTA) Or Toll-Free 1-866-884-3314????(????????????-????????????????????????????????) [No-Busy Air] Quick Connect... to cancel your flight and receive a full refund.