The short version
Which savings are free and which are not
There is a version of a budget Corbett trip that is genuinely excellent, and a version that is a waste of a long drive. The difference is almost entirely about which corners you cut. Some cuts are free: a plainer room, no pool, no river view, a property on the southern road rather than the Kosi. You will not think about any of them during a good safari morning.
Other cuts are expensive in disguise. The main one is distance from your reporting gate. Saving a modest amount per night on a property forty minutes the wrong way costs you sleep on every safari morning and, on a two-night trip, can cost you a whole shift if the transfer goes wrong. That is not a saving; it is buying less holiday for less money.
The second false economy is an unreliable safari arrangement. Budget properties typically pass your names to a third-party operator, which is fine on quiet dates and risky on busy ones, when permits are being rationed and you are not anybody's priority booking. If your dates are a long weekend, either pay a little more for a property that files its own permits, or book the permit yourself first and the room afterwards.
The third is skipping the second safari to afford a better room. This is almost always the wrong trade. Corbett is a reserve with variable sightings; two shifts double your chances and a nicer room does not. If the budget only stretches to one of them, take the shift.
How to actually spend less
Travel midweek. The weekend premium in Corbett is substantial across every tier, and a Tuesday-to-Thursday trip can cost meaningfully less for the same property and a quieter reserve.
Go in the shoulder or monsoon weeks. Rates fall, the forest is at its greenest, and the southern zones stay open. The trade is humidity and the chance of rain, which most travellers find acceptable at the price.
Stay in Ramnagar town. You lose the forest setting completely and you save a lot. For a one-night or two-night safari-focused trip with an early train, it is often the rational choice.
Take a room-only or breakfast-only rate and eat locally. Full board at a resort is convenient and rarely cheap. Ramnagar has plenty of straightforward places to eat.
Share a jeep if you are a small group. A jeep seats six; two couples splitting one vehicle halves the per-person cost of the safari without changing the experience much.
Book the permit early and the room late. Permits get scarcer as the date approaches; rooms often get cheaper. Reversing the usual instinct works in your favour here.