It depends on where you live. If you live close enough to the state of New Jersey, then the best and cheapest way to get there is by car, train, or subway.
By bus.
through ur heart to ur brain
motorcycle
The cheapest way to travel from Reykjavik to the Blue Lagoon is by taking a public bus.
The cheapest way to travel to Australia depends on where you are traveling from. The easiest and quickest way to travel would be by plane but a boat would also get your there.
The cheapest way to travel from New York to Washington DC is by taking a bus or a budget-friendly train like Amtrak's Northeast Regional service. These options typically offer lower fares compared to flying or driving.
WALK.
by plane
The cheapest way to travel from Arlanda Airport to Stockholm is by taking the commuter train, also known as the Arlanda Express.
Cheapest and Quickest, is by train.
Yes, the cheapest way was to travel by water because by land you had to walk unlike in water which has currents. It does the walking for you.
Backpacking it, staying in hostels and using the slow trains for transportation makes for the cheapest travel around Europe.