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Live forecast for both cities, 12 Oct to 15 Oct.
Forecast data from MET Norway, CC BY 4.0.
Fares and hotel rates usually run higher around these dates. Booking earlier or moving your trip by a day or two often costs less.
Busiest periods: Summer school holidays (15 Apr – 15 Jun), Festive season (01 Oct – 30 Nov), Winter break and New Year (20 Dec – 05 Jan).
Fixed-date national holidays. Festivals that follow the lunar calendar shift each year and are not listed here, so check the exact date for your travel year.
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Patna occupies the site of Pataliputra, capital of the Mauryan and Gupta empires, and remains the administrative and commercial centre of Bihar. Its economy runs on government, trade, education and services, and many families have members working in other states, so flights and trains fill up around Chhath and Diwali. Visitors come for the Bihar Museum and Takht Sri Patna Sahib, the birthplace of Guru Gobind Singh, and use the city as the gateway to Nalanda, Rajgir, Vaishali and Bodh Gaya.
Fraser Road, Boring Road and the area around Gandhi Maidan are central for a short stay and close to the museums. App cabs, auto-rickshaws and e-rickshaws are the usual way around, as the metro so far covers only a short stretch on the eastern side of the city. The airport runway is short, so only narrow-body aircraft fly here.
October to March is the best season. December and January bring dense fog that delays morning flights and trains, and May and June are very hot. Chhath Puja, six days after Diwali, fills the ghats along the Ganga and makes travel into Patna very busy. The Bihar Museum is closed on Mondays. At Takht Sri Patna Sahib, cover your head, remove your shoes and wash your feet before entering; the community kitchen serves langar to all visitors.
October to March, with days of about 8-28°C; fog can delay flights in December and January. April to June is hot.
By Air: Jay Prakash Narayan Airport (PAT) is about 6 km south-west of Gandhi Maidan; allow 20-30 minutes by road. Prepaid taxis, app cabs and auto-rickshaws serve the terminal.
By Rail: Patna Junction, Rajendra Nagar Terminal, Patliputra and Danapur are the main stations. Vande Bharat trains run to Lucknow, Howrah and Ranchi, and Rajdhani services link Patna with New Delhi.
By Road: The Mahatma Gandhi Setu and the newer JP Setu cross the Ganga to north Bihar, and a highway runs south to Gaya and Bodh Gaya. BSRTC and private buses leave from the Patliputra Bus Terminal at Bairiya.
Spend a morning in the galleries of the Bihar Museum on Bailey Road.
Visit Takht Sri Patna Sahib and eat at its langar.
Climb the spiral stairs of the Golghar granary for a view over the Ganga.
See the Mauryan pillared hall remains at Kumhrar.
Drive about 90 km to the ruins of Nalanda Mahavihara.
Jay Prakash Narayan Airport, Patna (PAT). The new terminal, in use since 3 June 2025, handles all passenger flights. A short runway limits the airport to narrow-body aircraft.
Kolkata was the capital of British India until 1911, and its port, jute trade and publishing houses made it the commercial centre of the east. It opened the country's first metro in 1984, and College Street remains one of the largest second-hand book markets in India. Visitors come for the Victoria Memorial, the ghats along the Hooghly, Bengali sweets and fish, and above all for Durga Puja in autumn, which UNESCO added to its intangible cultural heritage list in 2021.
Park Street and the streets around Esplanade suit a short trip, with New Market, the Maidan and the Victoria Memorial close by; Salt Lake and New Town are nearer the airport and the IT offices. The Blue Line metro is the fastest way north and south, and the Green Line now crosses the river to Howrah. Yellow Ambassador taxis still run on the meter alongside app cabs.
November to February brings dry, mild days. Durga Puja falls in September or October; during the five main days, roads near the large pandals close to traffic, hotel rates rise and flights fill early. Kali Puja and Diwali follow a few weeks later. Heavy monsoon showers from June to September can leave streets waterlogged. The Victoria Memorial museum is closed on Mondays. Expect long queues at Kalighat and Dakshineswar on Tuesdays and Saturdays, and leave footwear at the counters outside.
November to February, with days of about 12-27°C and little rain. The monsoon runs from June to September.
By Air: Netaji Subhas Chandra Bose International Airport (CCU) is at Dum Dum, about 16 km from Dalhousie Square; allow 45-75 minutes by road. The Yellow Line metro stops at Jai Hind (Biman Bandar) station, and WBTC air-conditioned buses, prepaid yellow taxis and app cabs serve the terminal.
By Rail: Howrah and Sealdah are the main terminals, with Shalimar and Kolkata (Chitpur) handling some long-distance trains. Rajdhani services run to New Delhi, and the Vande Bharat sleeper links Howrah with Guwahati.
By Road: NH 19 runs north-west towards Durgapur and Delhi, and NH 16 south to Odisha. State and private buses leave from the Esplanade bus terminus for Digha, Siliguri and other destinations.
See the Victoria Memorial galleries and walk its gardens at dusk.
Cross the Hooghly by ferry from Babughat and watch the traffic on Howrah Bridge.
Visit the idol-makers' workshops at Kumartuli in the weeks before Durga Puja.
Browse second-hand books on College Street and stop at the Indian Coffee House.
Watch the evening aarti at Dakshineswar Kali Temple.
Netaji Subhas Chandra Bose International Airport (CCU). A single integrated terminal handles both domestic and international flights.
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The direct air distance between Patna (PAT) and Kolkata (CCU) is about 472 km. Actual flight time varies with the routing the airline files and with winds on the day.
Not on the dates shown here. Every Patna to Kolkata option on this page has at least one stop. Non-stop service can differ by season and by day, so check nearby dates before you decide.
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Approx route distance: 471.98 km.
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