1.Witr is not fard but rather a highly recommended sunnah which the Prophet salla Allahu aliaihi wa sallam never missed, even during safar.
2. Qunoot in Witr is not mandatory and it doesn’t require sujood as sahu if missed.

Q:Is witr prayer fard in safar/normal Also qunoot is mendetory for need sahu sajda if miss qunoot

Prayer | October 4, 2017 5:16 pm
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In India, there are not Masajid for women everywhere. So, if travelling to work or other purposes, and the time for Salah comes, is it allowed we pray the Fard Rakahs sitting in the vehicle we are travelling in (train/bus/auto), in the direction we are heading towards? Provided that the time for Salah will get over by the time we reach home.