Kolkata to Bangkok non-stop on Thai Airways, IndiGo & Air India — the shortest CCU international flight (2h 30m). Fares, baggage, Thailand visa-free for Indians.
Pick which sources FlightGPT queries. Toggle a source off to skip it during search.
Quick answer: Kolkata to Bangkok non-stop flights take about ≈ 2h 30m–2h 50m non-stop, operated by IndiGo, Thai Airways, Thai Vietjet, Thai Lion Air, Bhutan Airlines, ≈ 3–4 non-stops daily. Check the visa requirement for your destination before you book. Use the live search above to compare today's cheapest CCU–BKK fare across every airline, OTA and travel agent in one place.
Last reviewed July 2026 by the FlightGPT flights desk · route facts cross-checked against DGCA and the Airports Authority of India (AAI) · how we collect fares · editorial policy · fact-checking · fares are live — verify the final price in search before booking.
Looking for cheap flights from Kolkata to Bangkok? FlightGPT compares live CCU to BKK fares across every connected source — Indian carriers, Gulf hubs, OTAs and trusted travel agents — and shows the cheapest options side by side. Whether you want a Kolkata to Bangkok non-stop tomorrow, a last-minute weekend deal or the lowest price three months out, every active Kolkata-Bangkok fare is one search away.
IndiGo and Thai Airways are the core carriers, both flying non-stop into Bangkok's main Suvarnabhumi (BKK) on A320-family and wide-body jets. Thai Vietjet (which launched CCU–BKK in January 2026) also uses Suvarnabhumi, while Thai Lion Air flies into the older Don Mueang (DMK). Bhutan Airlines serves the route too. Air India offers connections rather than a non-stop here, so the direct choices are IndiGo, Thai Airways, Thai Vietjet, Thai Lion Air and Bhutan Airlines.
CCU → BKK is only about 1,650 km and blocks at roughly 2 hours 30–50 minutes — one of the quickest international hops from any Indian metro. Thailand is 1 hour 30 minutes ahead of India (ICT UTC+7 vs IST UTC+5:30). The short sector means plenty of convenient daytime and evening departures, and a morning flight can have you on a Bangkok street for lunch the same day.
Fares rise over November–February (Thailand's cool, peak-tourist season plus year-end holidays) and during April–May school holidays and Songkran. The cheaper, low-season months are typically June–September (the green/monsoon season, with frequent short showers but good deals). Pricing moves daily, so check live fares in the FlightGPT search; on this dense, competitive route, flash sales from Thai Vietjet and IndiGo appear often.
Book 3–6 weeks ahead for most travel and earlier for the November–February and Songkran peaks. The low-cost carriers (Thai Vietjet, Thai Lion Air, IndiGo's lighter fares) sell bare — add baggage online and compare the all-in total against Thai Airways, which bundles a bag and meals. Because it is such a short flight, hand-baggage-only fares genuinely work for a long weekend. Mid-week departures usually price best.
Kolkata (CCU) Netaji Subhash Chandra Bose International handles international flights from its integrated terminal; allow 90–120 minutes for formalities. Bangkok has two airports: full-service and most carriers use Suvarnabhumi (BKK), while Thai Lion Air uses Don Mueang (DMK). They are about 45–60 minutes apart by road, so match your airport to your plans — and if connecting onward in Bangkok, never assume both flights use the same airport.
Thai Airways economy typically includes a checked allowance plus 7 kg cabin. IndiGo international usually allows 25–30 kg; see IndiGo baggage. Thai Vietjet and Thai Lion Air are hand-baggage-only on base fares — buy checked bags at booking, where they are cheapest. Confirm exact limits per fare bundle with each airline, as low-cost carriers price baggage in tiers.
The rules changed in 2026. Earlier in the year Indians enjoyed 60-day visa-free entry, but a Thai Cabinet decision in May 2026 ended visa-free entry for Indian passport holders, moving them to a Visa on Arrival permitting a stay of up to about 15 days. This is a fast-moving policy, so before booking verify the current entry rule on official Thai government sources. Whatever applies, you will likely need to complete the Thailand Digital Arrival Card (TDAC) and show onward tickets, accommodation and funds.
Because Thai entry rules are in flux, recheck the visa position close to departure and carry printed proof of accommodation, funds and a return ticket. Confirm whether your flight uses BKK or DMK before arranging airport transfers. Complete the TDAC online ahead of time. Pre-book low-cost-carrier bags and seats. Use the FlightGPT search to compare all five non-stop operators on price and timing.
Bangkok is a sensory feast — glittering temples like Wat Arun and the Grand Palace, legendary street food, the Chatuchak weekend market, rooftop bars and easy onward trips to Pattaya, Phuket or the islands. Just two and a half hours from Kolkata, it is the perfect quick getaway or shopping weekend. The cool, dry November–February window is the most comfortable, while the green season brings the best deals.
Non-stop flights take about 2 hours 30–50 minutes for roughly 1,650 km — one of the shortest international routes from any Indian metro. Thailand is 1 hour 30 minutes ahead of India.
IndiGo, Thai Airways and Thai Vietjet fly non-stop into Suvarnabhumi (BKK); Thai Lion Air flies into Don Mueang (DMK); and Bhutan Airlines also serves the route. Together they average 3–4 non-stops a day.
Yes, as of mid-2026. A Thai Cabinet decision in May 2026 ended visa-free entry for Indians, moving to a Visa on Arrival of up to about 15 days. This policy is changing fast, so verify the current rule on official Thai government sources before booking.
Most carriers — IndiGo, Thai Airways and Thai Vietjet — use Suvarnabhumi (BKK). Thai Lion Air uses Don Mueang (DMK). The two airports are about 45–60 minutes apart, so confirm which one your flight uses before arranging transfers.
Low-cost carriers like Thai Vietjet, Thai Lion Air and IndiGo's lighter fares usually have the lowest base price, but exclude checked bags. For a long weekend, hand-baggage-only often works. Compare all-in totals and check live fares in the FlightGPT search.
The Thailand Digital Arrival Card is an online entry form visitors complete before arrival. Indians should fill it in ahead of departure. Combined with the 2026 visa change, confirm both the TDAC and the latest entry rule on official Thai sources.
June–September (the green/monsoon season) usually has the lowest fares, with frequent short showers but warm weather. Avoid the November–February peak and the April–May Songkran period for the best prices.
Among the major metros, yes — Kolkata is the nearest, which is why the flight is only about two and a half hours and fares are typically among the lowest India–Thailand options.
FlightGPT is a natural-language flight search: ask the way you'd ask a friend, and it compares live CCU–BKK fares across every airline, OTA and travel agent. Try one:
Kolkata to Bangkok prices swing with demand, season and lead time more than with any single airline. The reliable lever is comparison: pull every CCU–BKK fare at once and shift your date by a day or two. Mid-week and red-eye departures on IndiGo, Thai Airways, Thai Vietjet, Thai Lion Air, Bhutan Airlines are usually where the cheapest seats sit.
For a same-week Kolkata–Bangkok trip, the trick is to check all carriers at once rather than one app at a time. FlightGPT's live CCU-BKK search does exactly that — red-eye and early-morning departures often carry the lowest last-minute prices. Enter your date above to compare instantly.
Most travellers prefer the Kolkata to Bangkok non-stop option. The direct Kolkata-Bangkok flight time is ≈ 2h 30m–2h 50m non-stop. If you are flexible, 1-stop alternatives through major hubs can be 15-30 percent cheaper. FlightGPT lets you filter by "Direct only" or compare both side by side — useful when you want the cheapest Kolkata Bangkok ticket but are open to a layover.
On Kolkata to Bangkok, the headline price and the price you actually pay can differ once baggage and seat selection are added. That's why FlightGPT compares fully-bundled Kolkata Bangkok fares across IndiGo, Thai Airways, Thai Vietjet, Thai Lion Air, Bhutan Airlines — the cheapest all-in option, not the lowest sticker that balloons at checkout.