Short answer: from Doha (DOH) the cheapest right-now option is a direct budget flight (Jazeera Airways or Kuwait Airways) — one‑way fares start around QAR 275–300 (~€68–77 / ~$75–85) and return fares around QAR 460–490 (~€118–130 / ~$125–135) depending on exact dates. (Prices checked as of Nov 1, 2025.) (airhint.com)

What I looked at and why

• Jazeera Airways frequently has the lowest one‑way fares on DOH–KWI (examples in early–November show fares from about €68 / QAR ~275). (airhint.com)
• Flight aggregators (Trip.com, Lowcost.pro) and airline pages show cheap return fares (Kuwait Airways and Jazeera common) — roundtrips often available in the QAR 460–490 range for nearby dates. (Trip.com)
• flydubai and Qatar Airways also operate the route and sometimes run sales; their cheapest published monthly fares start roughly QAR 490 one‑way in some months, so check them too if your dates are flexible. (flydubai.com)

How to get the absolute cheapest fare right now

• Be flexible with travel dates (midweek and off‑peak hours are usually cheaper). (Lowcost.pro)
• Compare Jazeera, Kuwait Airways, Qatar Airways and flydubai on a flight search site plus the airlines’ own sites — sometimes the cheapest fares book only on the airline site. (airhint.com)
• Check one‑way vs return pricing — sometimes two one‑ways (same or different carriers) are cheaper than a roundtrip. (us.Trip.com)
• Use fare alerts (Google Flights, Skyscanner, or an aggregator) or check airline sales — last‑minute flash sales in the GCC do appear occasionally. (timesofindia.indiatimes.com)

If you want, I can:

• Search for cheapest exact flights for your travel dates (departing from Doha) and show specific flights and prices to book right now.