Cheap Flights from Houston to Delhi
Houston (IAH) → Delhi (DEL) · 16–18 hours nonstop, 20–24 hours with a connection
Flights from Houston (IAH) to Delhi (DEL) are operated by Air India, United, Emirates and Qatar Airways among others, with nonstop service alongside one-stop itineraries via Dubai or Doha. Total journey time is typically 16–18 hours nonstop, 20–24 hours with a connection. You depart from George Bush Intercontinental (IAH) and arrive at Indira Gandhi International (DEL).
| Departure airport | George Bush Intercontinental (IAH) |
|---|---|
| Arrival airport | Indira Gandhi International (DEL) |
| Main airlines | Air India, United, Emirates and Qatar Airways |
| Routing | Nonstop service alongside one-stop itineraries via Dubai or Doha |
| Journey time | 16–18 hours nonstop, 20–24 hours with a connection |
| When to book | Two to four months ahead for ordinary travel, and six months or more for December, the summer school holidays and the Indian wedding season, when the cheapest fare buckets are gone long before the date approaches |
Flying out of Houston Intercontinental
Houston Intercontinental is United's Gulf and Latin America hub, and its Middle East service makes it a strong one-stop gateway to South Asia — Gulf carriers connect IAH onward to virtually every Indian and Bangladeshi city through their own hubs. Sugar Land, Katy and Pearland hold one of the largest South Asian populations in the South, and the corridor is competitive enough that consolidator fares out of IAH often beat the published fare from a nominally better-connected coastal airport.
What to know before you fly to Delhi
Entry requirements for US travellers
US passport holders need a visa for India. The e-Visa covers most tourist and business trips and is applied for online; holders of an OCI card travel on the OCI instead. Processing is usually quick but not instant, so start it before you commit to fixed dates — check current requirements on the Indian government's official e-Visa portal.
Best time to go
October to March is the comfortable season in North India and also the busiest: Diwali and the winter wedding season push fares to their annual peak, and seats on the popular US–Delhi itineraries sell out months ahead. April to June is genuinely hot but consistently the cheapest window of the year.
Airports and arrival
Indira Gandhi International (DEL) is the largest airport in South Asia and the natural connecting point for onward flights to Amritsar, Chandigarh, Srinagar and the rest of North India. Terminal 3 handles international arrivals; allow real time if you are connecting to a domestic flight, as it is a terminal change on some itineraries.
Baggage
Free checked allowance on the US–India corridor varies more than on almost any other route we handle — from a single bag on a basic transatlantic fare to two generous bags on a Gulf carrier. Families routinely travel heavy in both directions, so confirm the allowance before booking rather than at the airport; this alone is often worth more than the fare difference.
Airlines from Houston to Delhi
Itineraries offer nonstop service alongside one-stop itineraries via Dubai or Doha.
Getting the best price to Delhi
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Houston to Delhi — frequently asked questions
Fares on the Houston–Delhi route vary widely by season and how far ahead you book. We do not publish an estimate we have not measured for this pair; call our agents and they will quote the live consolidator fare for your dates.
Carriers on this route include Air India, United, Emirates and Qatar Airways. Others serve it on one-stop itineraries, and the cheapest is not always a name you would expect — the lowest fare we have tracked here was on a carrier outside that list more than once. Itineraries offer nonstop service alongside one-stop itineraries via Dubai or Doha, and total journey time runs about 16–18 hours nonstop, 20–24 hours with a connection. Which carrier is cheapest changes with the season and the fare bucket rather than staying fixed, which is why we compare them all on every quote.
Plan on 16–18 hours nonstop, 20–24 hours with a connection from George Bush Intercontinental (IAH) to Indira Gandhi International (DEL), including time on the ground if your itinerary connects.
Book two to four months ahead for ordinary travel, and six months or more for December, the summer school holidays and the Indian wedding season, when the cheapest fare buckets are gone long before the date approaches.
Yes — this route has nonstop service, with nonstop service alongside one-stop itineraries via Dubai or Doha. Nonstop is not always the cheapest option: a one-stop itinerary on the same dates is frequently a few hundred dollars less, and on a journey of 16–18 hours nonstop, 20–24 hours with a connection that trade is worth pricing rather than assuming. Frequencies change by season, so call us for what is actually flying on your dates.
Bush Intercontinental (IAH) is Houston's international airport; Hobby (HOU) is domestic and largely Southwest. Nearly every long-haul option departs IAH, so the real question here is terminal rather than airport — international departures use Terminal D or E, and the inter-terminal transfer is worth building time for on a tight connection.
This is the corridor where it matters most. US–South Asia fares carry the widest gap between the published price and the consolidator price of anything we sell, the itineraries are long enough that a better connection is worth real money, and baggage rules differ enough between carriers to change which fare is actually cheaper once you have paid for your bags. All three are things a search box cannot weigh for you. SkyKaro's agents are reachable 24/7, and nothing is charged until an agent has confirmed the itinerary and the price with you.