India to Singapore: Month-by-Month Cheapest Fare Calendar 2026
By Arjun Kapoor (Arjun Kapoor tracks error fares, mileage runs and award-chart sweet spots for Indian travellers. He moderates two Telegram fare-alert channels and has booked Europe round-trips at sub-₹25,000 four times in the last 24 months.) · Published · 11 min read
February, March, and September are the sweet spot for cheap India-to-Singapore flights in 2026. The premium months — June, December, the last week of any school holiday — are when airlines know you're cornered. Here's how to read the fare calendar across all four Indian metro gateways.
TL;DR — The cheapest months to fly India to Singapore
February, March, and September are typically the cheapest months on India–Singapore routes in 2026. June, July (school holidays), December, and the long-weekend clusters around Diwali and Christmas are expensive. Book 8–12 weeks out for the cheapest months; 14–18 weeks out if you're targeting peak season. Use FlightGPT's flexible-date search to scan a full month and find the low-fare slot — the difference between the 3rd and 8th of any given month can easily be ₹6,000–₹10,000.
The fare calendar, month by month
Here's how 2026 shakes out, in rough terms. These are patterns, not guarantees — actual fares depend on seat availability, carrier, and how early you book. Check live prices on the airline sites or FlightGPT routes for your specific dates.
| Month | Fare Level | Why |
|---|---|---|
| Jan | Medium-high | New Year hangover, Republic Day weekend spike |
| Feb | Low | Post-holiday lull, no big Indian public holidays |
| Mar | Low–Medium | Pre-summer, good shoulder month; Holi weekend dip available |
| Apr | Medium | School exam period keeps leisure travel lower |
| May | Medium-high | Summer holiday starts building late May |
| Jun–Jul | High | School holidays — Singapore is a family favourite |
| Aug | Medium | Post-holiday, monsoon in India; slightly suppressed |
| Sep | Low | Sweet spot — post-monsoon, before Diwali rush |
| Oct | Medium-high | Navratri/Dussehra, Diwali cluster (2026 dates matter) |
| Nov | Medium | Post-Diwali eases off; decent window mid-month |
| Dec | High | Christmas/New Year — peak Singapore tourism season |
Gateway city comparison: DEL, BOM, MAA, CCU
Not all four metros are equal for Singapore fares, and the best gateway depends on your city and travel month.
Delhi (DEL): Biggest choice of carriers — IndiGo, Air India, Singapore Airlines all operate nonstop. IndiGo's nonstop DEL–SIN runs around 5.5 hours and is often the cheapest nonstop option if you catch it early. Air India also flies the route. Singapore Airlines' full-service product costs more but the extra legroom on their A350s is genuinely worth it for a family trip — just don't expect it to match IndiGo's base fare.
Mumbai (BOM): BOM–SIN has IndiGo, Air India, and Singapore Airlines. Fares are comparable to DEL, sometimes a shade higher, but connections through BOM from South or West India save on domestic positioning.
Chennai (MAA): This is the gateway most Indians overlook. Singapore Airlines has long treated MAA as a secondary hub — their MAA–SIN fares are often competitive, and Scoot (SQ's budget arm) also flies the route. If you're in Tamil Nadu, check MAA first before assuming BOM or DEL wins.
Kolkata (CCU): Thinner but underrated. IndiGo and Air India fly CCU–SIN, and the base demand from the Bengali diaspora in Singapore keeps some capacity here. It's worth checking, especially for February or September travel. Compare all four gateways on FlightGPT before you book.
Airline-by-airline: IndiGo vs Scoot vs Singapore Airlines vs Air India Express
Let me be direct about what each carrier is actually like on this route.
IndiGo (6E): Almost always the cheapest nonstop from DEL and BOM. Bare-bones cabin — no seat-back screen, meal is paid, check-in bag costs extra. For a four-to-five hour flight, honestly fine. Their DEL–SIN and BOM–SIN nonstops are reliable. The catch: add-ons (meals, bags, seat selection) add up fast. Calculate the real cost before celebrating the base fare.
Scoot (TR): Singapore Airlines' budget carrier. Flies from DEL, BOM, CCU, and occasionally MAA. Base fares competitive with IndiGo; sometimes marginally cheaper on the DEL route. Add-on structure similar — count in bags and meals. Scoot's advantage: occasionally runs 24-hour flash sales (the 'IndiGo-style sale' equivalent for Singapore routes).
Singapore Airlines (SQ): Full-service at a premium — but the premium isn't always as big as you'd think in shoulder months. In February or September, SQ's Y fares from MAA or DEL can sometimes come within ₹4,000–₹8,000 of IndiGo's all-in cost once you add bags and meals to the IndiGo price. For families or anyone who values the cabin experience, worth the check.
Air India Express (IX): Flies some India–Singapore routes as a connector. Useful if the timing works; fares sit between IndiGo and full Air India.
Air India (AI): Nonstop DEL–SIN and BOM–SIN. Full-service, usually priced between SQ and IndiGo. In 2026, post the Vistara merger, Air India has been expanding capacity — watch for promotional fares on new routes.
The best booking window for each season
Booking too early isn't always better on this route — Singapore carriers open bookings 9–12 months out, but initial pricing is rarely the cheapest.
- Low season (Feb, Mar, Sep): 8–12 weeks out is usually optimal. Airlines sometimes release cheaper inventory 60–75 days out when they see slow pickup.
- Shoulder season (Apr, Aug, Nov): 10–14 weeks out. A bit more competition for seats on long weekends — book those mini-holiday slots earlier.
- Peak season (Jun, Jul, Dec): 14–20 weeks out minimum. For school-holiday June/July travel, I'd book before March. For December 20–January 2, book by September or accept that you're paying premium prices.
One tactic that works: book a refundable/flexible fare in the 14-week window for peak season, then keep monitoring. If prices drop, some OTAs let you rebook at the lower fare (with a fee, but it can still net save you money). Check the cancellation and change terms carefully — IndiGo's Flexi fares and Singapore Airlines' flexible booking options are worth understanding before you assume a standard ticket is cheaper overall.
Things that quietly inflate the final price
A few traps I've seen people fall into on India–Singapore bookings:
- Baggage: Singapore allows 20 kg checked baggage import-free for personal goods. IndiGo/Scoot base fares include zero check-in baggage. Add 20 kg for the return and you're paying ₹2,500–₹4,500 extra per leg on budget carriers — it matters.
- GST and airport charges: Changi Airport charges are unavoidable and already in the fare; just make sure you're comparing apples to apples when you see a base fare vs. total fare.
- Forex and card surcharges: If you're paying in SGD on a carrier's Singapore site, your Indian credit card will apply a forex markup of 2–3.5% unless you use a zero-markup card. On a ₹30,000 ticket, that's real money. Use a Scapia, IDFC FIRST WOW, or similar card, or pay in INR on the Indian version of the site.
- Seat selection fees: On IndiGo/Scoot, selecting a specific seat costs extra. Not the emergency exit (those have rules), but even a standard aisle seat. Budget for it or accept a random assignment.
Quick bottom-line advice
If you want the cheapest India–Singapore fare in 2026, aim for mid-February, first three weeks of March, or second/third week of September. Fly out of DEL or MAA for the widest carrier choice. IndiGo is almost always cheapest on base fare — just price it all-in with bags. Scoot is a solid alternative worth checking in parallel. Singapore Airlines in shoulder months can surprise you with competitive pricing, especially ex-MAA.
Set a fare alert on FlightGPT or Google Flights for your dates 12 weeks out and check weekly. Don't wait for a sale announcement — on this route, the 'sale' is just the ordinary early-bird window with a better headline.
Frequently asked questions
Which is the cheapest month to fly from India to Singapore?
February and September are consistently the cheapest months across all Indian gateways for Singapore in 2026. March is a close third. These sit outside school holidays and India's major festival clusters. Book 8–12 weeks ahead for these months — you don't need to go super early.
Is IndiGo cheaper than Scoot on India–Singapore routes?
Usually yes, but the gap is narrower than it looks once you add check-in baggage and meals. On DEL–SIN, IndiGo's base fare often edges Scoot's, but Scoot occasionally runs 24–48 hour flash sales that flip the equation. Check both on the same day and compare all-in prices including a 20 kg bag each way.
Is there a nonstop flight from Chennai (MAA) to Singapore?
Yes — Singapore Airlines and Scoot both fly MAA–SIN nonstop, and it's one of Singapore Airlines' long-standing routes. Air India Express also operates on this corridor. MAA is arguably underrated as a gateway for South India travellers who assume they must route through BOM or DEL.
How much does a round-trip India–Singapore flight cost in 2026?
In low season (Feb/Sep), all-in round-trip fares from DEL or BOM with a budget carrier typically range from around ₹18,000 to ₹28,000 including one checked bag. Peak season (June/December) can push the same ticket to ₹35,000–₹55,000 or higher. These are rough indicative ranges — check live prices on IndiGo, Scoot, or FlightGPT for your exact dates.
Should I book on the airline website or an OTA for India–Singapore?
Both are worth checking. Airlines sometimes have exclusive web fares (IndiGo's site often has cheaper add-on combos). OTAs like MakeMyTrip or Ixigo occasionally get negotiated inventory or run their own promos. Check both in the same session and compare the all-in price. For refund/change purposes, booking direct with the airline is simpler if you anticipate needing flexibility.
Does Vistara still fly India–Singapore?
No. Vistara completed its merger into Air India in 2024. If you're looking for what was previously Vistara's full-service product on this route, it now operates under the Air India banner. Air India currently flies DEL–SIN and BOM–SIN nonstop.