TransNusa's fourth Jakarta-Singapore flight: timing guide

TransNusa says it has added a fourth daily rotation between Jakarta and Singapore, giving travelers another evening departure in each direction. The new outbound leaves Jakarta at 17:40 and reaches Singapore at 20:20. The return leaves Singapore at 21:20 and reaches Jakarta at 21:55.

The airline announced the extra frequency on October 7, 2026, the day the first new rotation was due to operate. Current schedule listings show a phased pattern before broader daily operation later in October, so the word "daily" should not replace a date-specific booking check.

*Original AI-generated OpenSim editorial illustration. The unbranded aircraft, traveler and combined skylines are conceptual and do not depict a real TransNusa flight path or airport view.*

The practical answer: The new evening rotation is listed as 8B141 from Jakarta and 8B142 from Singapore. TransNusa's announcement gives 17:40 to 20:20 outbound and 21:20 to 21:55 return times. Singapore is one hour ahead of Jakarta, so the scheduled flying times are about 1 hour 40 minutes and 1 hour 35 minutes. Confirm the operating day and final time in the booking engine before arranging a connection.

What TransNusa announced on October 7

TransNusa's route announcement says the fourth rotation took off from Jakarta on October 7. It follows a third daily frequency introduced in April 2026 and is operated with an Airbus A320.

The announcement gives the new local times but does not identify the flight numbers. Current schedule listings identify the outbound as 8B141 and the return as 8B142. Those listings can change, and the issued itinerary remains the authority for a particular date.

All times are local. Jakarta uses UTC+7 and Singapore uses UTC+8. That one-hour clock difference explains why the return appears to take only 35 minutes when read without the time zones.

The fourth rotation may phase in before running every day

There is a useful distinction between the airline's network announcement and the flight available on a chosen date. TransNusa describes the addition as a fourth daily service. The current 8B142 schedule listing shows selected operating days from October 7 through October 23, followed by a wider pattern from October 25.

That difference may reflect a short start-up phase, a schedule update still moving through distribution systems, or later changes. It is not a reason to assume either source applies to every date. Search the exact travel day on TransNusa's website, make sure both 8B141 and 8B142 appear when needed, and save the issued itinerary after payment.

If the evening flight is part of a separate-ticket connection, leave a generous buffer. A timetable is not protection when an earlier flight arrives late, baggage must be collected, or a second airline closes check-in.

Use Terminal 3 in Jakarta and Terminal 4 in Singapore

TransNusa's current airport and terminal page places its international departures at Soekarno-Hatta Terminal 3, with check-in at Island E14 to E22. At Singapore Changi, the airline lists Terminal 4 and check-in row 6, counters 7 to 12.

Check the terminal again shortly before departure because operational assignments can change. At Changi, Terminal 4 is separate from Terminals 1, 2 and 3. The airport's inter-terminal guide says the free shuttle journey between T4 and the other terminals takes about 10 to 18 minutes, before allowing for walking and security.

Changi permits an airside transfer to Terminal 4 only when the itinerary is through-checked to the final destination. Travelers on separate tickets who need to collect baggage or check in again should be prepared to clear immigration, meet Singapore's entry conditions and use the public-side transfer.

Baggage allowance depends on the fare

TransNusa's baggage page allows two cabin pieces with a combined weight of no more than 7 kg. The larger piece must fit within 56 by 36 by 23 cm. The airline's conditions also describe one laptop bag, handbag or small bag within 40 by 30 by 10 cm as the second piece.

Checked baggage is fare and route specific. TransNusa's international fare document lists different included amounts across its fare families, while the live baggage page says the free allowance can vary. Read the allowance on the Jakarta-Singapore booking and ticket instead of assuming another passenger's 15 kg, 20 kg or 30 kg allowance applies.

Prepaid baggage is available for international flights, with a minimum 4 kg purchase stated in the conditions of carriage. The same terms allow airport charges when checked baggage exceeds the purchased or free limit. Prices can change, so compare the manage-booking price before reaching the counter.

International check-in is at the airport

TransNusa's web check-in terms say online check-in is available only for domestic flights. Jakarta-Singapore passengers should therefore plan to use the airport counter unless the airline introduces a route-specific alternative.

The conditions of carriage say international counters open three hours before departure and close 60 minutes before departure. Airport or flight-specific deadlines can differ. Arriving near the cutoff leaves little room for document checks, baggage questions or a counter change.

For the 17:40 Jakarta departure, a conservative plan is to be at Terminal 3 around 14:40. For the 21:20 Singapore departure, that means reaching Terminal 4 around 18:20. These are planning times based on the airline's general counter-opening rule, not a guarantee that every counter will be ready at the exact minute.

Complete the correct arrival declaration

Most visitors entering Singapore must submit the SG Arrival Card within three days before arrival, including the arrival day. It is not a visa. Travelers who remain in transit without seeking immigration clearance are among the stated exemptions.

Travelers arriving in Indonesia by air use the government's All Indonesia declaration. Indonesian Customs says the form combines immigration, customs, health and quarantine information and can be completed from three days before arrival. Use the official address linked from the customs guidance, and keep the QR code available for arrival.

Entry permission and visa requirements depend on nationality and travel purpose. Check the relevant immigration authority before travel rather than treating an arrival card as permission to enter.

Getting away from Changi Terminal 4 after the evening arrival

The 20:20 scheduled arrival leaves time for evening transport, but immigration, baggage and disruption can push the trip later. Changi's ground transport guide lists public buses from stops near Terminal 4, ride-hailing pickup points, taxis and private transfers.

Terminal 4 does not have its own MRT station. Passengers can take the public shuttle toward Terminal 2 and the airport MRT area. Train and bus services do not run all night, while taxis and private-hire cars remain available around the clock. Check the current last service rather than relying on a saved timetable.

Mobile data for a Jakarta-Singapore trip

OpenSim's live catalog had country plans for Indonesia and Singapore when this guide was reviewed. Travelers using data in both countries can also compare an Asia 7 areas plan that includes Indonesia and Singapore.

A country plan can suit a one-way trip followed by a stay in just one destination. A regional plan avoids changing data plans when the itinerary uses both countries, but its allowance, validity, speed policy and price still need to fit the trip.

Install the eSIM while reliable Wi-Fi is available and follow the selected package's activation instructions. An eSIM supplies mobile data on supported ground networks. It does not provide inflight Wi-Fi, guarantee airport coverage or protect a missed connection.

Ten questions about the new TransNusa frequency

Is TransNusa now flying Jakarta to Singapore four times a day?

TransNusa announced a fourth daily rotation on October 7. Current schedule listings show a phased start for the new evening pair, so confirm that it operates on the exact date you want.

What time is the new Jakarta to Singapore flight?

The airline announced a 17:40 departure from Jakarta and a 20:20 arrival in Singapore. Both are local times, and Singapore is one hour ahead.

What time is the new Singapore to Jakarta return?

The new return is scheduled to leave Singapore at 21:20 and arrive in Jakarta at 21:55 local time. The clock advances only 35 minutes because Jakarta is one hour behind Singapore.

Are the new flights 8B141 and 8B142?

Current schedule listings identify 8B141 as the 17:40 Jakarta departure and 8B142 as the 21:20 Singapore departure. TransNusa's announcement gives the times but not the numbers, so verify the itinerary before travel.

Which terminals does TransNusa use in Jakarta and Singapore?

TransNusa currently lists Terminal 3 for international departures at Jakarta CGK and Terminal 4 at Singapore Changi. Recheck both assignments before leaving for the airport.

Can I check in online for the international flight?

TransNusa's published web check-in terms say the service is only for domestic flights. Plan to check in at the airport for Jakarta-Singapore unless the airline gives different instructions for your booking.

How much cabin baggage can I take on TransNusa?

The published limit is two cabin pieces weighing no more than 7 kg in total. The main piece can be up to 56 by 36 by 23 cm, and the smaller personal item has its own size limit.

Is checked baggage included on this route?

It depends on the purchased fare. TransNusa publishes several international fare families with different allowances, so the amount shown on the booking and ticket controls.

Can I connect at Changi on a separate ticket?

You can, but it may require entry into Singapore, baggage collection and a new check-in. Changi's airside T4 transfer requires a through-checked itinerary, so build a wide buffer and meet Singapore's entry conditions.

Which OpenSim plan covers both Jakarta and Singapore?

The Asia 7 areas destination includes Indonesia and Singapore in one regional plan selection. Separate Indonesia and Singapore country plans are also available for travelers who need data in only one country.

Jakarta-Singapore planning checklist

• Search the exact date instead of assuming the fourth rotation operates every day during its start-up period.
• Match 8B141 and 8B142 to the times on the issued itinerary.
• Remember the one-hour time difference when calculating the trip length.
• Confirm CGK Terminal 3 and SIN Terminal 4 before departure.
• Arrive with enough time for international counter check-in and document checks.
• Use the baggage allowance printed on the booking, not a forum report.
• Treat separate-ticket connections as unprotected and allow for immigration and baggage.
• Submit the correct Singapore or Indonesia arrival declaration when required.
• Check the last MRT or bus if arriving in Singapore late.
• Save the itinerary, arrival QR code and ground-transport details offline.

Evidence checked and when to revisit this guide

TransNusa's October 7 announcement supports the fourth-frequency launch, new local times, April expansion history and planned A320 operation. The airline's current terminal, baggage, web check-in and conditions pages support the airport guidance and passenger rules. Changi Airport, Singapore ICA and Indonesian Customs support the terminal-transfer, transport and arrival-declaration guidance.

Current schedule listings were used to identify 8B141 and 8B142 and to flag the phased operating pattern. Public traveler discussions informed the questions about baggage enforcement, reliability and separate connections, but they were not used as policy sources.

Review this guide after the late-October schedule change, when the new rotation has a longer operating record, or sooner if TransNusa changes the frequency, times, flight numbers, terminals, aircraft, baggage or check-in rules.

*Airline, airport, government, public-question and OpenSim catalog sources were reviewed on October 7, 2026.*