IndiGo is expanding aggressively in Southeast Asia with the launch of a daily direct service between Delhi and Hanoi from December 20, 2025. At the same time, it is upgrading its Mumbai connections to Singapore and Phuket. These moves reflect the airline’s strategy to lead in India–ASEAN travel.
Delhi–Hanoi: A New Daily Link
Beginning December 20, 2025, IndiGo will fly a daily Delhi–Hanoi route using its Airbus A320 fleet. Flight 6E 1633 will depart Delhi at 07:25 IST and arrive in Hanoi at 13:00 local time. The return Flight 6E 1634 will leave Hanoi at 18:00 and land in Delhi at 21:25 IST.
Until now, IndiGo’s Vietnam presence was centered on Kolkata. By introducing this route from Delhi, the airline opens up direct access for travelers from across India. No longer will travelers need to transit via third-party hubs. The new service will support tourism, business, and cultural exchange between India and Vietnam.
Enhancing Mumbai’s Southeast Asia Routes
IndiGo is also strengthening its Mumbai–Southeast Asia links.
- Mumbai–Singapore: From Winter 2025, a second daily frequency will begin. This gives passengers more timing flexibility and better alignment with connecting flights to Europe and Asia.
- Mumbai–Phuket: This route will receive a significant upgrade. IndiGo will introduce a two-class A321neo with both economy and premium “stretch” seats. This is a bold step into more premium product offerings on leisure routes, putting the airline in closer competition with full-service carriers.
Phuket continues to be a highly demanded holiday destination for Indian travelers. The new premium option reflects IndiGo’s confidence in the leisure travel segment and its willingness to cater to travelers seeking greater comfort.
Strategy Behind the Expansion
IndiGo’s push into Southeast Asia is timely. The ASEAN region is seeing growing Indian tourist traffic, aided by smoother visa regimes and increased bilateral engagement. Travel between India and countries like Vietnam, Thailand, and Singapore is surging.
This network expansion also aligns with IndiGo’s broader international ambitions. The airline has already announced plans to serve many new global destinations. Alongside, it is introducing premium seating on key routes such as Singapore, Phuket, and Dubai. These changes aim to diversify its customer base beyond purely low-cost travel.
IndiGo also plans to boost its share of international seat capacity. The airline is adjusting its fleet strategy to support both short-haul and long-haul international routes. Over time, its goal is to drive up overseas capacity, feed traffic via its main hubs, and raise its global footprint.
What Travelers Should Expect
- Greater convenience – Daily direct service between Delhi and Hanoi removes layovers and reduces travel time.
- More timing options – The extra Mumbai–Singapore frequency offers flexibility, especially for connection-heavy itineraries.
- Upscale travel on leisure routes – The premium seating on Mumbai–Phuket presents a more comfortable option for holiday travelers, giving IndiGo a competitive edge.
- Seamless integration – Delhi and Mumbai will serve as strong hubs, allowing traffic from smaller Indian cities to feed into international travel.
Wider Impacts & Outlook
This expansion comes at a time when IndiGo plans to scale its international operations. The airline has stated intentions to add 10 new international destinations in 2025. It also envisions raising international capacity to a larger fraction of its overall operations in the coming years.
For the airline industry and tourism sectors, these new routes will likely stimulate greater cross-border collaboration and trade. More flights mean better opportunities for tourism boards, travel agents, and local businesses on both sides.
For passengers, the changes translate into more options, shorter travel times, and improved comfort—especially on routes that were earlier limited or inefficient.
In summary, memory of this milestone will belong to travelers who look forward to exploring new destinations without hassles. The Delhi–Hanoi daily flight, paired with enhanced Mumbai–Singapore and Mumbai–Phuket services, mark a turning point in India’s aviation connectivity to Southeast Asia. With this bold push, IndiGo seeks not only expansion but a deeper integration between Indian cities and the vibrant nations of the ASEAN region.
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