https://www.devex.com/people/can-you-add-a-lap-baby-after-booking-a-flight-with-westjet-airlines-2350872
https://www.devex.com/people/how-to-add-an-infant-to-your-westjet-flight-reservation-2350966
https://www.devex.com/people/how-to-add-a-lap-infant-to-a-allegiant-flight-after-booking-2351472
https://www.devex.com/people/does-allegiant-allow-last-minute-bookings-for-infants-2351539
https://www.devex.com/people/booking-a-ticket-for-a-lap-infant-on-allegiant-airlines-2351585