Reports today suggesting Ryanair has settled out of court with Expedia over their ill-fated partnership has thrown the spotlight once again on the airline's white label deals.
Both Expedia and Ryanair are refusing to discuss any aspect of the case or the apparent settlement between the two, preferring various twists on the phrase "inappropriate to comment", or "not discussing this issue" when contacted.
The case ran (not continuously) from late-2008 until a point this month when, presumably, both agreed to shake hands on a deal.
Expedia was initially being asked to cough up around £4 million after Ryanair claimed failure of payment by the OTA during its contract to supply hotel search and bookings functionality to the airline's website.
This will not be the first time Ryanair has trousered some money from an old white label provider.
Rewind a few years and Ryanair was reported to have secured Euro 10 million from the Cendant Corporation after accommodation brand Needahotel ended a five-year contract early. The Expedia deal took off almost immediately and lasted from March 2007 to November 2008.
Priceline's Booking.com is the latest white label partner on the accommodation side for Ryanair, picking up where Expedia left off. The co-branded site has been running for over 12 months.
In contrast to Ryanair's three hotel distribution partners in four years, rival carrier EasyJet has worked with TUI Travel's Hotelopia and more recently LateRooms since 2004.
Nevertheless, at the centre of any relationship between Ryanair and a white label provider is the cost structure, whether it is an upfront integration fee or commission-based system.
It is understood the airline prefers the latter method for most of its ancillary relationships.
The obvious attraction to any partner is the lure of huge levels of traffic to the Ryanair site. Each white label provider is also given a channel tab at the top of the site, and some products are promoted during the booking process.
But clearly some of the initially happy marriages fail to get past the first heated row.
Activities and tours specialist Isango made an obviously large PR play about its partnership with Ryanair in early-2008 - it was a big deal for a young company and came around the same time as its rival Viator was winning the attention of EasyJet.
Less known is that the Isango-Ryanair deal ended sharply in the first quarter of 2009, with Isango officials now saying the "commercials did not stack up for us".
"Better common sense prevailed," says Deepak Jha, vice president of commercial at Isango.
Ryanair will also not discuss its wider white label agreements or the Isango deal.