I'm not sure if this falls into the "open jaw" category. We plans to fly from the Charlotte to Newcastle UK and back from London to Charlotte next June. If I book using the multi city function on the airline website it does not allow me to buy a non stop home from London. I am willing to pay a little extra for this. If I book the outbound ticket on one airline as one way and the return ticket one way non stop on a different airline, are there any pitfalls to this approach? Thanks.
The pitfalls to buying one way tickets is that for "most" airlines the cost of a one way ticket is more than the cost of a round trip ticket. For most airlines however if you book an open jaw ticket all at once then you get the round trip price. There are a few budget airlines where this pricing is not true. The only one I can think of off hand is Iceland Air. If the airline you are looking at has a direct flight available that you are not being offered online I would call. Maybe it's a software issue?
so you mean two one-way tickets?
no pitfalls other than the price
You may be asked to show your return one-way ticket at the boarding gate for your outbound flight, I was when I flew back to the US from London (non-Schengen) after spending 90 days in the Schengen zone.
The only carrier that flies direct from London to Charlotte is American Airlines, which is part of Oneworld with British Airways. So, I’m a tad surprised you can’t find a suitable multi-city option – into Newcastle and out of Heathrow.
That is odd! I just tried doing a sample booking and experienced what you did on American Airlines' website.
If you go to British Airways website, however, you will get the itinerary you requested with a nonstop home to CLT on a BA codeshare with American Airlines.
Plug this into Kayak and you will get multiple options. I used the 1 stop filter and was able to find several that were non-stop in one direction, one stop in the other. They are all code shares. You'll be able to book these all at once.
Tom in MN - yes I frequently buy one way tickets domestically, but I've found on the major carriers internationally that one way is still much more expensive.
Most, maybe all, of the low-cost airlines in Europe base their pricing on one-way travel. Even when the biggest, Ryanair, shows a round-trip function, it is still selling two one-way tickets. As to why trans-ocean flights are priced on round trips, it's a mystery I would love to hear explained by an expert.
IIRC, there are times when BA keeps certain inventory and face buckets to itself rather than releasing it to codeshare partners.