San Francisco to Delhi Flights (SFO to DEL): Routes, Airlines & Booking Guide

San Francisco to Delhi Flight Overview

Flying from San Francisco International Airport (SFO) to Indira Gandhi International Airport (DEL) covers roughly 7,690 miles (12,375 km), making it one of the longest routes regularly flown between the United States and India. It is a core corridor for the Bay Area's large Indian community, for technology business travel between Silicon Valley and Delhi–Gurugram–Noida, and for onward connections to the rest of India.

The route is served both nonstop and with a single connection, and the two options behave very differently on price, total travel time and baggage. Which one is right for you depends mainly on how much the time saving is worth and how flexible your dates are.

Nonstop vs one-stop

Nonstop service between SFO and DEL has been operated by Air India and by United, and a nonstop takes roughly 15 to 16 hours eastbound. Operating days and aircraft change with the season, so treat nonstop availability as something to confirm at the moment you search rather than a fixed schedule — run a live search for your dates and the current operating carriers will be the ones that come back.

One-stop itineraries are almost always more numerous and often cheaper, at the cost of four to eight extra hours. Three connecting geographies dominate this route:

• Via Europe — London Heathrow (LHR), Paris Charles de Gaulle (CDG), Frankfurt (FRA) and Amsterdam (AMS) are the common European transfer points, typically with a westbound-style daytime first leg and an overnight second leg into Delhi.
• Via the Gulf — Dubai (DXB), Doha (DOH) and Abu Dhabi (AUH) route you south-east with well-timed late-night arrivals into Delhi and frequently the widest choice of departure times.
• Via East Asia — Seoul Incheon (ICN), Hong Kong (HKG) and Tokyo (NRT/HND) send you west across the Pacific, which can be the shorter option from the Bay Area on paper but usually involves a longer layover.

There is no single best connection for everyone: Gulf routings tend to have the most frequencies, European routings often have the shortest total elapsed time after a nonstop, and Pacific routings occasionally price lowest in shoulder season.

Airports and terminals

At SFO, long-haul departures to India leave from the International Terminal; allow three hours for check-in and security on a flight to Delhi, more during the summer and December peaks. Arrivals into Delhi use Terminal 3, which handles all of IGI's international traffic and also most domestic connections, so an onward flight within India usually does not require changing terminals — though it does require clearing immigration and customs and re-checking your bags unless they are through-tagged.

When to fly, and when to book

Demand on the US–India corridor is strongly seasonal, and the swing is large enough to be worth planning around:

• Peak: mid-June through August and mid-December through early January. School holidays and family travel push both fares and load factors up. Book these windows as far ahead as you can.
• Shoulder: March to May and September to early November. Generally the best balance of price and availability.
• Lowest demand: late January and February, when the weather in northern India is also at its most comfortable.

One local detail worth knowing: Delhi experiences dense winter fog in late December and January, which can delay or divert morning arrivals. If you are connecting onward from Delhi in that period, leave a generous buffer rather than the minimum legal connection time.

Baggage, visas and arrival

Checked-baggage allowances on US–India routes are usually more generous than on domestic flights, and several carriers have historically allowed two checked pieces in economy on this corridor — but the allowance depends on the fare you buy and the airline you fly, not on the route, and basic or discounted fares are frequently the exception. Confirm the allowance on your own booking confirmation before you pack.

Most US passport holders need an Indian visa or an approved e-Visa before boarding; it is checked at departure, not on arrival, so apply well before your flight. Delhi's airport is connected to the city by the Airport Express metro line, prepaid taxi counters in the arrivals hall and the usual app-based options.

Booking this route with Way4Fly

Use the search above for live availability on your own dates — the fares shown on this page come from a live lookup, not a stored price list. Complex India itineraries, multi-city trips and premium-cabin bookings are often cheaper or better routed than an online search alone will show, and our travel desk can quote those by phone.