Changi Airport Terminals 1-4 Explained: Where Indigo, Air India & Singapore Airlines Fly From
The first question most Indian travellers ask after landing a cheap Indigo or Air India deal is “which terminal do I fly out of?” This changi airport terminals guide Indian airlines covers Changi’s four-terminal setup (T1, T2, T3, T4) plus the JetQuay CIP terminal, and flags where airline assignments have shifted since T4 reopened in 2017. Indian travellers should always confirm their check-in terminal against the boarding pass, since terminal changes have occurred with limited notice.
Quick Answers
| What | Answer |
|---|---|
| Which terminal does Indigo fly from at Changi? | Terminal 3 |
| Which terminal does Air India fly from at Changi? | Terminal 2 |
| Where does Singapore Airlines check in? | Terminal 3 (also Terminal 2 for some flights) |
| Can I web check-in for Singapore Airlines from India? | Yes, 48 hours to 1 hour before departure on the KrisFlyer app or web |
| Are T1, T2, T3 connected after immigration? | Yes, via free underground walkways (Skytrain runs airside between T1, T2, T3); T4 connects by free shuttle bus |
| How early should I be at Changi before a flight? | 3 hours for Indian carriers, 2.5 hours for SQ/SilkAir |
| Does Changi accept UPI? | No. Cards and SGD cash only at most counters |
Changi Terminal Map for Indian Carriers (2026)
Changi groups airlines by terminal in long-term partnerships, so the assignments don’t shift every season. Here’s where your carrier checks in:
| Airline | Departure Terminal | Check-in Hall | Notes |
|---|---|---|---|
| Singapore Airlines (SQ) | Terminal 3 | Hall A (rows 1-6) and Hall B (rows 7-12) | Some regional SQ flights also depart T2 |
| Air India (AI) | Terminal 2 | Hall West | Same terminal as IndiGo’s codeshares, check the boarding pass |
| IndiGo (6E) | Terminal 3 | Hall B | Flies to Chennai, Bengaluru, Hyderabad, Mumbai, Tiruchirappalli, Kochi |
| Scoot (TR) | Terminal 1 | Hall C | Budget subsidiary of Singapore Airlines |
| Air India Express (IX) | Terminal 2 | Hall West | Trichy, Tirupati, Kochi, Mangaluru routes |
| Jet Airways (defunct) | n/a | n/a | Acquired in 2019, slots returned to SQ |
| Malaysia Airlines (MH) | Terminal 2 | Hall West | Codeshare with Singapore Airlines on KL flights |
| Thai Airways (TG) | Terminal 1 | Hall C | Codeshare with SQ |
If your boarding pass says “T2” you go to Terminal 2, not Terminal 1. Sounds obvious, but travellers report sprinting between terminals after trusting a Google Maps pin more than their airline’s confirmation email.
Singapore Airlines Web Check-in From India
Singapore Airlines opens web check-in 48 hours before departure and closes it 1 hour before. You can use the KrisFlyer app or the airline’s web check-in portal from your phone while still in India.
The boarding pass downloads to your wallet and the QR code scans at Terminal 3’s auto-gates, no counter visit needed unless you have bags to drop.
Web check-in is not available if:
- You booked through a third-party offline agent that didn’t transmit your passport data
- You booked a “waitlisted” fare that cleared less than 48 hours ago
- You’re travelling with an infant in a separate seat
- Your itinerary includes a codeshare leg operated by a partner airline (Scoot, Air New Zealand regional)
Bag drop after web check-in opens at T3 Row 5 from 3 hours before departure. Counters are signed “Web / Mobile Check-in Bag Drop” and have a separate, shorter queue than the full-service desks.
Subodh’s Pro Tip: Pre-print the e-visa approval and return ticket PDFs and carry them in your cabin bag. Even though Singapore is visa-required for Indian passports, immigration officers at Changi rarely ask to see the visa beforehand, but they’ll sometimes ask for proof of onward travel. Airlines at the gate also see immigration pre-clearance status in their systems, so the visa approval matters most at the Singapore eVisa portal when it’s filed.
Air India and IndiGo Check-in at Changi
IndiGo and Air India both offer web check-in. Free web check-in opens 48 hours before for both carriers; paid seat selection closes at the same window. Counter check-in remains the default option for many travellers.
IndiGo at Terminal 3 is in Hall B alongside Singapore Airlines’ regional counters. IndiGo’s check-in rows run roughly 9-14 here, with separate queues for “Web Check-in / No Bags” on the left and “Bags / Full Service” on the right.
Air India at Terminal 2 sits in Hall West, with Air India Express at the same hall. Codeshare passengers (AI-marketed, operated by IndiGo) need to physically check which terminal their boarding pass lists, since IndiGo flights depart T3 even when booked under an AI flight number.
Cabin baggage on IndiGo’s international Singapore routes is strictly 7 kg, in line with their domestic policy. Anything heavier and you’ll pay at the gate in SGD, not INR. Air India’s international allowance is 8 kg cabin plus a personal item.
Why Changi Has Four Terminals (and Why It Matters)
The four-terminal setup isn’t random. Terminal 1, the oldest, handles most legacy carriers and Star Alliance partners. Terminal 2 was gut-renovated between 2020 and 2024 and is now the home of Air India, Malaysia Airlines, Thai Airways, and a cluster of regional full-service airlines. Terminal 3 was opened in 2008 for Singapore Airlines and its Star Alliance / Lufthansa Group partners. Terminal 4, reopened in 2017 after a five-year retrofit, houses most Asia-Pacific full-service carriers not in the SQ family.
For Indian travellers, this means:
- Air India or Malaysia Airlines or Thai Airways to/from India: Terminal 2
- IndiGo, Singapore Airlines, ANA, Lufthansa, Air New Zealand regional: Terminal 3
- Air Asia (currently no direct Singapore-India service after the Jet collapse): Terminal 1
- Vietnam Airlines, Korean Air, Asiana: Terminal 4
After immigration, T1, T2, T3 are linked by the free Skytrain (airside only) and underground walkways (landside and airside). T4 is reachable only by free shuttle bus from T2 (departs every 8-10 minutes during peak hours, less often late at night). The Skytrain only runs airside (after immigration), so landside transfers between T1/T2/T3 use the underground walkway, and any transfer involving T4 uses the shuttle bus.
Connecting Between Terminals
| Transfer Type | How | Time | Cost (SGD) |
|---|---|---|---|
| T1 to T2, airside | Skytrain (after immigration) | 4 minutes | Free |
| T1 to T3, airside | Skytrain | 6 minutes | Free |
| T2 to T4, airside | Shuttle bus | 18 minutes | Free |
| T1 to T4, landside | Free shuttle bus from T1 Arrival level | 25 minutes | Free |
| T3 to T4, landside | Free shuttle bus from T3 Arrival level | 15 minutes | Free |
| Any terminal to Jewel | Walking from T1 Arrival level via link bridge, or short Skytrain if airside at T2/T3 | 5-10 minutes | Free |
T4 note: the airside Skytrain extension that previously linked T2/T3 to T4 was decommissioned during the post-2020 refurbishment. Today, if you’ve cleared immigration at T4 and want to visit Jewel, you have to landside-walk to T2 first and then over.
Terminal-by-Terminal Facilities for Indian Travellers
| Facility | T1 | T2 | T3 | T4 |
|---|---|---|---|---|
| Free local-SIM counter (Singtel/M1) | Yes (level 3 Arrival) | Yes (level 3 Arrival) | Yes (level 3 Arrival) | No (proceed to T1) |
| Prayer room | Yes, level 3 near F Gates | Yes, level 3 near E Gates | Yes, level 3 near A/B Gates | Yes, level 2 transit |
| Indian / vegetarian restaurant airside | Limited | Limited | Limited | Limited |
| Forex / currency exchange | 7 counters landside + airside | 6 counters | 8 counters | 2 counters |
| Priority Pass lounge | 4 lounges | 3 lounges | 5 lounges including SilverKris | 2 lounges |
| 24-hour food | Limited - mostly T3 | Limited | All hours (T3 food court) | Limited |
| UPI / QR payment at shops | No | No | No | No |
| Smoking rooms | 2 outdoor, 4 indoor (airside) | 2 indoor | 3 indoor + 1 outdoor | 1 indoor |
The lack of UPI acceptance is the most common surprise for first-timers. Every shop at Changi accepts Visa and Mastercard, most take Apple Pay and Google Pay, and major outlets accept Amex. But UPI and Paytm QR codes do not work at Singapore airports.
For vegetarian Indian food, options vary by terminal and season; the linked guide lists current airside and landside outlets. Plan ahead by eating before security at the landside food courts, which typically offer broader Indian vegetarian choices than airside concessions.
Getting From Changi to Singapore City
| Transport Mode | Where It Leaves | Cost (SGD) | Time to City | Best For |
|---|---|---|---|---|
| MRT (East-West Line) | T2, T3 basement (CG line) | 1.50 - 2.50 | 45 min to City Hall | Budget travellers, light luggage |
| Public bus (SBS service 36) | T1, T2, T3 bus bay | 0.90 - 2.50 | 70-90 min | Cheapest, slow, luggage hassle |
| Grab / Gojek | T1, T2, T3, T4 Arrival kerb | 8.00 - 15.00 | 30-40 min to Bugis | Most convenient at night |
| Airport shuttle (Trifti/Bus+) | T1, T2, T3 Arrival | 9.00 - 18.00 | 45 min | Hotel drop-off |
| Taxi (metered, Comfort/Grab Cab) | All terminal kerbs | 22.00 - 38.00 | 30 min | Heavy luggage, late night |
| Changi Airport Taxi coupon (pre-paid) | Counter at each terminal | 30.00 - 45.00 | 30 min | Fixed price, no app needed |
For a step-by-step comparison including getting to the city at night, the MRT routing guide has updated 2026 timetables. The Singapore MRT card for tourists (SimplyGo EZ-Link) costs ₹747 (~10 SGD or ~$7.75) with ₹374 (~5 SGD or ~$3.88) stored value and works at every MRT station including Changi.
SIM Card and Data at Changi
The Singtel and M1 counters at Terminal 2 and Terminal 3 arrival halls sell the tourist SIM for ₹1,121 (~15 SGD or ~$11.63) with about 50 GB of data valid for 7 days, which is more than enough for a Singapore stopover. Activation requires your passport and takes under 10 minutes. The M1 and Singtel counters are not at T4; if you’re transferring via T4, you’ll have to detour to T1 or T3 (landside) to buy a SIM, or use the free airport Wi-Fi on the way.
If you’d rather activate before flying from India, Nomad eSIM ships a QR code via email that works on Singapore networks the moment you land. For Indian travellers boarding connecting flights, eSIM is the cleaner option since you skip the SIM-counter queue entirely.
Currency, GST Refund, and the FX Rate Today
Singapore is a cash-light economy and Changi specifically is almost cashless. Carry a Visa or Mastercard with low foreign transaction fee; HDFC Regalia, ICICI Coral, and Axis Atlas all refund the markup on Singapore purchases. The best forex cards for a Singapore trip from India compare four cards head-to-head.
GST refund at Changi: if you spent more than ₹7,473 (~100 SGD or ~$77.52) at a single retailer on goods you will take home (not consumed in Singapore), claim the 9% GST at the eTRS kiosk on your way out. The kiosks are at T1, T2, T3 landside, with T4 working through T1 by shuttle. For a complete walkthrough, the Changi money guide covers denominations, GST thresholds, and duty-free allow-in.
At the time of writing, 1 SGD is roughly INR 74.69, so SGD 100 is about INR 7,469 and ₹1,121 (~15 SGD or ~$11.63) is about ₹1,120 (~$11.62). If you’re comparing local prices to Delhi ones while shopping, divide the SGD price by 13 to get a rough rupee figure.
Flight Options from India to Singapore
| Airline | Cost Range (INR) | Duration | Route Type | Verdict |
|---|---|---|---|---|
| IndiGo (6E) | 18,000 - 28,000 | 4.5 hr | Direct (BOM, MAA, BLR, HYD, TRZ, COK) | Cheapest direct, 7 kg cabin baggage only |
| Air India (AI) | 21,000 - 32,000 | 4.5 hr | Direct (BOM, DEL, BLR, MAA) | Includes meal, 25 kg checked, fly out from T2 |
| Singapore Airlines (SQ) | 26,000 - 45,000 | 4.5 hr | Direct (BOM, DEL, BLR, MAA, HYD, COK) | Full-service, A350/B777-300ER, free seat selection |
| Air India Express (IX) | 17,500 - 26,000 | 4.5 hr | Direct (TRZ, TIR, COK, IXE) | Cheapest, Trichy and Mangaluru routes |
| Thai Airways (TG) | 32,000 - 55,000 | 11 hr | 1-stop via Bangkok | Useful if you want to see two countries |
| Malaysia Airlines (MH) | 28,000 - 42,000 | 7 hr | 1-stop via KL | Best for KL + Singapore split trip |
| Scoot (TR) | 14,000 - 22,000 | 4.5 hr | Direct (BOM, DEL, BLR, MAA) | Budget carrier, 10 kg cabin only, no meals |
The cheapest nonstop from Mumbai stays in the ₹18,000-₹22,000 (~$186.71-$228.21) band on IndiGo if you book 6-8 weeks out. Tuesday and Wednesday departures are slightly cheaper than weekend flights. For a solo trip from India, the layover option through Kuala Lumpur doubles as a bonus city, but no one flies that route for the cost: layover flights cost ₹1,000-₹3,000 (~$10.37-$31.12) less than the cheapest direct.
Safety Alert: Avoid the in-terminal airport taxi coupon stand unless your flight lands at a chaotic hour (midnight to 5 a.m.) when Grab wait times balloon. Travellers report waiting 40+ minutes for Grab at Terminal 4 during off-peak arrivals. Outside those hours, Grab beats the coupon stand on both price and transparency.
Best Time to Book
Flights from India to Singapore run cheapest from mid-January through mid-March (post-Lunar New Year) and from late August through October (Southwest monsoon shoulder). Peak prices hit mid-April (Tamil New Year and Eid), late October through early November (Diwali week), and the December holiday fortnight.
The best booking window is 6-8 weeks out for direct flights, and 4-6 weeks out for layover fares. Singapore Airlines drops its “Saver” fare bucket about 11 months ahead, so if you’re planning a Christmas 2026 trip, look now.
Indian Airport Checklist (Before You Board)
Five things that must be in your cabin bag when departing India for Singapore:
- Printed e-visa approval from the ICA / authorised eVisa agent. Even though Singapore is visa-required for Indian passports, the airline check-in agent will scan your passport and the visa status appears in their Advance Passenger Information system. The printout is for the immigration officer at the desk.
- Onward ticket confirmation in case you’re asked to prove your 30-day plan. A refundable bus ticket to Kuala Lumpur works.
- Hotel booking for the first night, printed. Even if the rest of your trip is flexible.
- A blue or black pen for filling the disembarkation / embarkation card on the plane. Singapore still hands out the physical card.
- Forex card and bank debit card as a fallback. Singapore is card-first and Changi ATMs are uniform 0.5% above mid-rate with most Indian bank withdrawals.
The Singapore visa application process for Indians costs ₹2,121 (~22 USD) for a single-entry tourist visa. Processing takes 3-5 working days, and the visa rules for Indian passport holders walk through every visa type (tourist, business, dependent, work pass).
What to Do When You Land
After deplaning, follow the “Arrivals” signs. If your terminal has T1’s Skytrain-style people mover or T2’s underground walkway, you’ll reach immigration in 5-10 minutes from the gate.
Immigration: Singapore’s automated clearance gates accept Indian passports with a 6-month-or-more validity stamp. First-time travellers use the manned counter (right side of the hall, “Foreign Passport” queue). Officers ask the standard four questions: where are you staying, how long, what is the purpose, are you travelling alone. Keep answers short. Most travellers clear in under 15 minutes off-peak.
Baggage: The carousel number is on the overhead screens. Changi uses a system where each carousel is reassigned per flight; your screen will show “6E 234 from Mumbai - Carousel 5” once bags start.
After immigration: Customs is a green channel unless you have goods to declare. Most Indians walk straight through. Jewel Changi sits landside from T1 and is the easiest access point if you’re arriving at T1. For what’s inside Jewel before or after immigration (the Canopy Park and the Rain Vortex), the guide covers the rules for the two sides.
Cash and SIM: Currency exchange counters are at every terminal landside (no GST on exchanging). Compare rates; ₹7,473 (~100 SGD or ~$77.52) fetches about ₹7,469 (~$77.48) mid-market, Changi counters are usually 0.5%-1% off that. For a comparison of money exchange at Changi vs city, the rate at Mustafa Centre in town beats Changi by about 0.7%.
For the Singapore immigration process for Indians in detail, with the actual questions asked and the documents shown, follow the linked guide.
FAQ
Does Indigo depart from Changi Terminal 3 or Terminal 4?
IndiGo uses Terminal 3 for all Singapore operations as of mid-2026, including codeshare flights under an Air India flight number. Terminal 4 is for SilkAir successors and select Asia-Pacific carriers. Always check your boarding pass, since IndiGo has moved terminals once before in 2017.
Can I web check-in for Singapore Airlines from India?
Yes. Web check-in opens 48 hours before departure and closes 1 hour before. Use the KrisFlyer app or the web portal. If you have bags, drop them at Terminal 3 Row 5 within 3 hours of departure. Web check-in is not available if the booking was made via a third-party travel agent that didn’t transmit passport data.
Is Changi Terminal 2 connected to T3 after immigration?
Yes. Landside transfers use the underground walkway between T2 and T3. Airside, the Skytrain runs every 4 minutes during peak hours, every 8 minutes off-peak, and travel time is under 5 minutes. T4 connects to T2 only by free shuttle bus, which takes 18-25 minutes including wait time.
What happens if I turn up at the wrong terminal?
The airline will re-book you on the next flight at no charge if you arrive more than 2 hours before departure and the gate is open. Less than 2 hours out and the standard no-show rules apply: indiGo and Air India keep the fare in credit, Singapore Airlines rebooks on the next seat at the same fare bucket.
Do I need a paper visa printout at Changi immigration?
Most travellers report they were not asked for the visa approval page at Changi immigration. The visa is digitally linked to your passport via the ICA Advance Passenger Information system. Carry the printout anyway, it has saved travellers at the manual secondary inspection desk when the system lag delayed their visa check.
Is Changi a 24-hour airport?
Yes. All four terminals stay open 24 hours. T1, T2, T3 have restaurants open 24 hours (SATS at T2 and T3 in particular). T4 has limited late-night food. For the 24-hour Changi experience, the guide walks through the late-night food halls, free napping zones, and shower facilities per terminal.
Where do I file for GST refund at Changi?
GSTRP kiosks are at all four terminals landside. T1 and T3 are full-service (kiosk plus staffed booth); T2 has a kiosk plus remote agent via video; T4 uses a hybrid kiosk that escalates to a landside agent at T1 if needed. Minimum spend is ₹7,473 (~100 SGD or ~$77.52) in a single receipt. The Changi money guide has the full breakdown.
Subodh’s Take
Most terminal confusion at Changi fades once you’ve flown the route once. The most useful thing I can tell you: do not trust the airport signage over your own boarding pass. Build a 30-minute buffer for any Changi layover that’s marked under 60 minutes, especially on connecting flights from T4 to T3 - the shuttle bus plus re-queue at security adds up faster than the screens suggest.
