You could look into buying a cheap positioning flight from DFW to NYC area airports and then buy a TATL ticket that goes NYC-LON/LON-DFW or one ticket for NYC-LON + LON-DFW-LON.
Originally Posted by
ntamayo
Sometimes booking a flight like this on AA Vacations (with the cheapest hotel) would help. Cheapest hotel can be booked but no need to check-in.
That kind of thing has indeed worked before.
And using at least some OTAs, is it still possible to book a vacation package where the dates for the hotel stay is after the date of the return flight?