Families could save nearly £3,000 if they are prepared to take a road trip at the start of their summer holiday, thanks to the savings available at certain regional airports.Admittedly, it would require a road trip on the return leg, too, but should a couple and two children from London opt to drive (or take a train) to Glasgow International for a flight to Faro, Portugal, rather than Heathrow, the savings could be as great as £2,740 – a cost of £2,941 down to £201 – a difference of 1363 per cent.London Heathrow to Glasgow InternationalDistance: 406 milesTime: 6 hours 30 minutes Holiday flight saving: £2,740 to Faro, based on a family of four flyingWhat to see on the way: The Lake District “These sky-high price differences beggar belief and show how holidaymakers can unwittingly pay out extortionate sums if they happen to live near the wrong airport,” said Ian Strafford-Taylor, CEO of FairFX.“Families travelling during the already expensive summer holidays will be disheartened to learn that this is yet another way in which they wind up paying through the nose.”“While it might seem extreme to travel a long distance to find the cheaper flight, it might save families a great deal of money in the long run. And these figures show that even choosing an airport a fairly short distance away could result in big savings.” The savings from such road trips were calculated in an investigation by currency analysts FairFX, which looked at variations in the cost of flights to the same destination from different British airports.It found eye-watering discrepancies, with Glasgow and Edinburgh both emerging as good value starting points for flights to some of Europe’s most popular summer holiday destinations. Families wanting to take advantage of this could even squeeze in a Scottish vacation as part of their trip.Newcastle Airport to Glasgow InternationalDistance: 155 milesTime: 2 hours 50 minutes Holiday flight saving: £749 to Paphos, based on a family of four flyingWhat to see on the way: Gretna Green Other stark differences included a 650 per cent increase from £181 to £1,358 for the cost of flights to Palma, Majorca, from Glasgow and Bournemouth respectively. Another family could save some £1,308 flying from Glasgow Prestwick to Arrecife, Lanzarote, rather than from Belfast International, or £749 by choosing Glasgow International Airport over Newcastle when flying to Paphos, Cyprus. Glasgow and Newcastle airports are just three-hour’s drive apart.East Midlands Airport to Birmingham AirportDistance: 38 milesTime: 50 minutes Holiday flight saving: £504 to Palma, based on a family of four flyingWhat to see on the way: National Memorial ArboretumEasier savings were found in the Midlands, where choosing Birmingham over East Midlands Airport, just 38 miles apart, could save a family more than £500 on flights to Majorca.