Nice — here’s a compact, budget-friendly 5‑day plan that covers Dubai, Kuwait City and Riyadh, plus practical tips for flights, visas, accommodation and saving money. I’ve assumed you’re starting in Egypt (Cairo) and want the cheapest, fastest route with one short stop in each city.

Quick legal/entry reminders (most important)

• Passport: keep at least 6 months validity for UAE, Kuwait and Saudi entry.
• Egyptian passport holders: UAE and Saudi tourist e-visa options exist; check processing times and requirements before booking. (Confirm details and apply online well before travel.) (evisa-dubai.com)
• Kuwait: many nationalities need a visa — confirm whether Egyptians require an e-visa or consular visa for your trip dates. Always verify current rules before departure. (en.wikipedia.org)

Suggested route (fastest + cheapest typical routing)

• Cairo → Dubai → Kuwait City → Riyadh → Cairo Rationale: Dubai has many low-cost outgoing flights to the region (Air Arabia, flydubai, etc.), Kuwait is close to Riyadh by short flight, and Riyadh has many return options to Cairo. Use low-cost carriers and book one-way tickets between cities to get the best prices.

5‑day sample itinerary (tight but doable) Day 1 — Fly Cairo → Dubai (morning); evening exploration

• Fly early AM, arrive Dubai midday. Use the afternoon for budget highlights: Downtown fountain walk, Dubai Mall (window‑shopping), Al Fahidi/Al Seef old quarter for cheap cafes and photography.
• Night: inexpensive shawarma/souk dinner. Overnight budget hotel/3‑star/hostel in Al Rigga/Al Satwa (cheaper than Marina/JBR).

Day 2 — Dubai full morning, evening flight to Kuwait

• Morning: free/low‑cost options — public beach (Jumeirah public beach), Abra across Dubai Creek (AED 1–2), Al Fahidi Historical Neighbourhood. Avoid pricey attractions (Burj Khalifa top) unless budget allows.
• Afternoon/early evening: fly Dubai → Kuwait (2–3hr flight). Overnight in Kuwait City (budget hotel near Salmiya or city center).

Day 3 — Kuwait day; late flight to Riyadh

• Morning: visit Souq Al‑Mubarakiya, Kuwait Towers (outside views), Corniche walk — low cost. Local buses/taxis for short hop.
• Late afternoon/evening: fly Kuwait → Riyadh (1.5–2hr). Overnight in Riyadh (budget area like Al Malaz or Olaya for affordable guesthouses).

Day 4 — Riyadh day (cultural highlights)

• Morning: Masmak Fortress (low fee or free entry to area), Deerah Souq, National Museum (check ticket price/time). Walk central areas; use ride‑hailing for safe, affordable trips.
• Evening: try local inexpensive restaurants (shawarma, kabsa restaurants). Overnight Riyadh.

Day 5 — Depart Riyadh → Cairo

• Morning free time depending on flight. Fly back to Cairo midday/afternoon.

Booking & transport tips to save money

• Book flights 4–8 weeks ahead for best low-cost fares. Compare aggregators (Skyscanner, Google Flights) and check low‑cost carriers directly (Air Arabia, flydubai, Jazeera Airways, Flynas, flyadeal). Many Gulf budget airlines run frequent promos — check current sales. (timesofindia.indiatimes.com)
• Travel light: carry-on only on low-cost carriers to avoid checked-bag fees.
• Use hub airports as base: Dubai (DXB/ DWC) often has lots of cheap regional flights; Kuwait (KWI) and Riyadh (RUH) are well connected.
• For local transport, use metro (Dubai), public buses where available, and ride‑hailing apps for short shared rides. In Riyadh/Kuwait taxis/ride‑hailing are often the easiest and economical if shared.

Estimated budget (very approximate — check live fares)

• International/region flights (Cairo→Dubai, Dubai→Kuwait, Kuwait→Riyadh, Riyadh→Cairo): with low‑cost carriers and early booking you might find combined fares roughly USD 250–500 total. (Varies widely by date and sale offers.) (timesofindia.indiatimes.com)
• Accommodation (budget hotels/hostels): USD 20–50 per night → 4 nights ≈ USD 80–200.
• Food & local transport: USD 20–40 per day → 5 days ≈ USD 100–200.
• VISAS & misc: UAE e‑visa and Saudi e‑visa fees vary (estimate USD 30–150 each depending on service) + possible Kuwait visa fee — check the official e‑visa portals. Always allow USD 100–200 for visas & entrance fees.
• Total rough budget: ~USD 530–1,100. (This is an estimate — check current airfares and visa fees before booking.)

Money & safety tips

• Carry a little local currency for small purchases; use an ATM on arrival for better rates. Notify your bank about travel.
• Keep copies of e‑visas and hotel bookings (digital + print).
• Respect local customs; Saudi has stricter public decency and conduct rules — review basics before arrival.
• Check travel advisories for any last‑minute restrictions.

Action checklist (what to do now)

1. Verify visa requirements and apply: UAE e‑visa, Saudi e‑visa, and Kuwait visa status for Egyptian nationals. (Start visa apps immediately if you plan to travel within weeks.) (evisa-dubai.com)
2. Search for multi‑city/one-way low‑cost fares (Cairo→Dubai / Dubai→Kuwait / Kuwait→Riyadh / Riyadh→Cairo). Compare dates +/-1 day for best price.
3. Book budget accommodation in advance (free cancellation recommended).
4. Pack carry‑on only, valid passport, printed e‑visas, and travel insurance if possible.

Want me to:

• search specific cheap flight options for particular dates, or
• check exact visa steps/links for Egyptian passport today?

If you want me to look up live fares or current visa pages for your exact travel dates, tell me your intended departure date and I’ll look up prices and e‑visa links now.