There are several travel destinations you can book online under your expected budget. However, booking through a coupon and cashback website like Groupon or Kiindly will not only let you save more money, but also will provide you with great deals on hotels, resorts, tour packages etc.
Armenia could be a direct hit if you talking about budget traveling. Great people with wide customs of hospitality, perfect climate and very modest prices. https://onewaytour.com/categories/winter-tours/ could help with that, i've tried that and it was great.
i recommend Bali and Morocco and Greece : here is the reason
- A trip to Bali doesn't come cheap — but it is somewhat budget-friendly during the autumn months. In late September and October, summer crowds depart and this Indonesian island transitions from dry season to rainy season, making it a good time to find bargains at resorts
-Greece has it all. It's not a cheap destination, but fall is a good time to save a few dollars if it's on the bucket list. Even luxury accommodations lower their prices in autumn as crowds thin and the broiling summer heat abates.
Morocco : fall offers lower prices and more temperate weather -- expect highs around 80 in September and 70 in October in Marrakesh. Don't miss getting lost in that city's atmospheric Medina, or old city. Farther afield, visit the blue city of Chefchaouen and enjoy a camel trek in the Sahara now that the heat is dwindling.
there is new website called book2trip.com for vacation rentals that offer many lists on those three destination
Will your trip be "budget" usually depends not from your final destination, but on how you arrange it. If you want to go somewhere right here, right now, every low cost tourist place will become 40-50% more expensive immediately. But if you plan it beforehand, take in accommodation the most and the less popular seasons and hunt for cheap tickets with special services, like lowcost.club or something similar, you will go "buget" almost anywhere.