Need to get from Dubai to Ajman — or Ajman to Dubai — without the hassle of a taxi? The E400 bus is the most popular and affordable inter-emirate route connecting Union Square Bus Station in Dubai with Al Musallah Bus Station in Ajman, operating every day of the week.
Table Of Content
- E400 Bus at a Glance
- What Is the E400 Bus?
- E400 Bus Timings — Full Schedule
- Dubai to Ajman — Weekday Schedule (Mon–Fri)
- Dubai to Ajman — Weekend Schedule (Sat & Sun)
- Ajman to Dubai Schedule
- First and Last Bus Times — Quick Reference
- E400 Bus Route — All Stops
- E400 Bus Fare
- How to Get and Top Up a Nol Card
- How Long Does the E400 Journey Take?
- E400 Bus vs Other Options — Dubai to Ajman
- Onboard Facilities
- Practical Travel Tips for E400 Commuters
- Frequently Asked Questions
- Further Reading on Urban Emirates
This guide covers everything you need: the full E400 bus schedule, all stops, fare details, journey times, and practical tips to make your commute as smooth as possible in 2026.
E400 Bus at a Glance
| Detail | Information |
| Operator | RTA (Roads and Transport Authority) |
| Route | Union Square Bus Station, Dubai — Al Musallah Bus Station, Ajman |
| Direction | Both ways (Dubai to Ajman and Ajman to Dubai) |
| First Bus (Dubai) | 4:25 AM |
| Last Bus (Dubai) | 11:30 PM (weekdays) / 11:50 PM (weekends) |
| Frequency | Every 20–30 minutes |
| Journey Time | 50–60 minutes (up to 90 mins during peak) |
| Fare (One Way) | AED 15 |
| Payment | Nol Card only — no cash accepted |
| Days of Operation | 7 days a week including public holidays |
What Is the E400 Bus?
The E400 is an RTA-operated intercity express bus service connecting Dubai and Ajman via Sharjah. It is one of the most heavily used inter-emirate routes in the UAE, serving daily commuters, students, workers, and visitors travelling between the two emirates.
The route passes through key areas in Sharjah — including the Ittihad Road corridor — before entering Ajman, making it accessible for residents living along this busy stretch. The journey covers approximately 28–40 kilometres depending on traffic and direction.
Tip: The E400 is the better option if you need to reach central Ajman or the Al Musallah area. If you are heading towards Al Qusais or Etisalat Metro in Dubai, the E411 bus may be a faster alternative.
E400 Bus Timings — Full Schedule
Dubai to Ajman — Weekday Schedule (Mon–Fri)
The E400 departs from Union Square Bus Station, Dubai throughout the day at regular intervals. Below are key departure times from Dubai on weekdays.
| Departure from Union Square (Dubai) | Approx. Arrival at Al Musallah (Ajman) |
| 4:25 AM | 5:20–5:30 AM |
| 5:00 AM | 5:55–6:05 AM |
| 6:00 AM | 6:55–7:05 AM |
| 7:00 AM | 7:55–8:10 AM (peak) |
| 8:00 AM | 8:55–9:15 AM (peak) |
| 10:00 AM | 10:50–11:00 AM |
| 12:00 PM | 12:50–1:05 PM |
| 3:00 PM | 3:50–4:10 PM |
| 5:00 PM | 5:55–6:20 PM (peak) |
| 7:00 PM | 7:50–8:05 PM |
| 9:00 PM | 9:50–10:05 PM |
| 11:30 PM | 12:20–12:30 AM |
Note: Arrival times are approximate. Peak traffic hours (7–9 AM and 5–7 PM) can add 20–30 minutes to the journey. Always allow extra time during rush hour.
Dubai to Ajman — Weekend Schedule (Sat & Sun)
Weekend timings differ slightly from weekday schedules. The service runs from 4:25 AM with the last bus departing at 11:50 PM on Saturday and Sunday, with the same frequency of every 20–30 minutes throughout the day.
Ajman to Dubai Schedule
The return journey from Ajman to Dubai operates on the same daily schedule. Buses depart from Al Musallah Bus Station in Ajman from 4:30 AM and run through to approximately 11:30 PM. Frequency remains every 20 minutes during peak hours and every 30 minutes during off-peak periods.
| Departure from Al Musallah (Ajman) | Approx. Arrival at Union Square (Dubai) |
| 4:30 AM | 5:25–5:35 AM |
| 6:00 AM | 6:55–7:10 AM |
| 7:30 AM | 8:25–8:50 AM (peak) |
| 9:00 AM | 9:50–10:05 AM |
| 12:00 PM | 12:50–1:05 PM |
| 3:00 PM | 3:50–4:05 PM |
| 5:30 PM | 6:25–6:50 PM (peak) |
| 8:00 PM | 8:50–9:05 PM |
| 11:00 PM | 11:50 PM–12:05 AM |
First and Last Bus Times — Quick Reference
| Direction | First Bus | Last Bus |
| Dubai (Union Square) to Ajman | 4:25 AM | 11:30 PM (weekdays) / 11:50 PM (weekends) |
| Ajman (Al Musallah) to Dubai | 4:30 AM | 11:00 PM |
E400 Bus Route — All Stops
The E400 route passes through 10–12 stops depending on direction, cutting through Sharjah before reaching Ajman. Here are all confirmed stops on the Dubai to Ajman direction.
| Stop No. | Stop Name | Emirate |
| 1 | Union Square Bus Station | Dubai |
| 2 | Mahlab School (Mahlad) | Sharjah |
| 3 | Ittihad Road, Ansar Mall | Sharjah |
| 4 | Ittihad Road, Al Safeer Mall | Sharjah |
| 5 | Al Wahda Road, City Centre Sharjah | Sharjah |
| 6 | King Faisal Road, Gold Souq (Old) | Sharjah |
| 7 | Thumbay Hospital | Ajman |
| 8 | Crown Palace Hotel / Safeer Mall | Ajman |
| 9 | Grand Mart / Union National Bank | Ajman |
| 10 | Giant Supermarket / Al Manama Mall | Ajman |
| 11 | Al Musallah Bus Station | Ajman |
Tip: If you are heading to Sharjah City Centre or the Gold Souq area, the E400 drops you off right on the main Ittihad Road corridor — no transfer needed.
E400 Bus Fare
A one-way trip on the E400 costs AED 15 per person for the full Dubai to Ajman journey. This makes it one of the most cost-effective inter-emirate travel options available in the UAE.
| Route | Fare | Payment Method |
| Dubai (Union Square) to Ajman (Al Musallah) | AED 15 | Nol Card only |
| Ajman (Al Musallah) to Dubai (Union Square) | AED 15 | Nol Card only |
| Short hop (mid-route boarding) | AED 12–15 | Nol Card only |
Note: Cash is not accepted on any RTA bus. You must have a Nol Card with sufficient balance before boarding. Trying to board without a valid Nol Card will result in being refused entry.
How to Get and Top Up a Nol Card
Nol Cards are available at any Dubai Metro station, RTA bus station, and select retail outlets. To top up your Nol Card, you can use any of the following:
- RTA ticketing machines at metro and bus stations
- The RTA Dubai app (available on iOS and Android)
- Select supermarkets and convenience stores across Dubai and Sharjah
- Online via the RTA website
How Long Does the E400 Journey Take?
| Condition | Estimated Journey Time |
| Normal traffic (off-peak) | 50–60 minutes |
| Morning peak (7:00 AM – 9:00 AM) | 70–90 minutes |
| Evening peak (5:00 PM – 7:30 PM) | 75–90 minutes |
| Late night / early morning | 45–55 minutes |
The route covers approximately 28–40 kilometres. Traffic on the Ittihad Road and Sheikh Mohammed Bin Zayed Road corridors is the primary factor affecting journey time, especially during morning and evening rush hours.
Tip: Travelling between 10 AM and 3 PM gives you the smoothest journey with the least traffic delays. If you must travel during peak hours, add 30 minutes to your expected arrival time.
E400 Bus vs Other Options — Dubai to Ajman
| Option | Cost | Journey Time | Comfort | Best For |
| E400 Bus (RTA) | AED 15 | 50–90 mins | Air-conditioned, WiFi | Daily commuters, budget travel |
| E411 Bus (RTA) | AED 12 | 50–60 mins | Air-conditioned | Al Qusais / Etisalat Metro area |
| Taxi | AED 70–100 | 35–50 mins | Private, door-to-door | Quick trips, groups |
| Uber / Careem | AED 60–90 | 35–50 mins | Private, app-based | Convenient, flexible pickup |
| Car Rental / Drive | AED 100–200/day | 30–45 mins | Full flexibility | Frequent travellers |
For daily commuters, the E400 is the clear winner on cost. Taxis and ride-hailing services cost 4–6x more and are better suited for occasional trips or when you are carrying heavy luggage.
Onboard Facilities
The E400 is a modern RTA intercity bus with the following standard facilities:
- Full air conditioning — essential during UAE summers
- Free WiFi on board for all passengers
- Comfortable, padded seating with luggage space
- Priority seating for women, children, and people of determination
- Clean, well-maintained interiors serviced regularly by RTA
The buses are fully accessible and maintained to RTA’s inter-emirate standards, making them a reliable choice for both daily commuters and occasional travellers.
Practical Travel Tips for E400 Commuters
- Arrive at Union Square Bus Station 10–15 minutes early during peak hours — buses fill up fast.
- Top up your Nol Card before arriving at the station. There are top-up machines at Union Square Metro Station right next to the bus stop.
- Use the RTA Dubai app or Google Maps to check real-time bus locations and departure times before leaving home.
- Sit on the right side of the bus for a better view of the Sharjah skyline and Ajman coastline.
- If you are travelling with luggage, board early to secure overhead space — the bus can get crowded during weekday mornings.
- The E400 stops at Mahlab School (Mahlad) in Sharjah — this is the first stop after Dubai, useful if you are heading to the Sharjah border area.
Tip: Save the RTA Journey Planner (wojhati.rta.ae) on your phone. It provides live departure times, route maps, and Nol Card balance checks all in one place.
Frequently Asked Questions
What are the E400 bus timings from Union Square to Ajman?
The E400 departs from Union Square Bus Station, Dubai starting at 4:25 AM. Buses run every 20–30 minutes throughout the day, with the last bus departing at 11:30 PM on weekdays and 11:50 PM on weekends.
How much is the E400 bus fare from Dubai to Ajman?
The one-way fare is AED 15 per person. Payment is by Nol Card only — cash is not accepted on any RTA bus service.
How long does the E400 take from Dubai to Ajman?
Under normal traffic conditions, the journey takes 50–60 minutes. During morning and evening peak hours, expect 70–90 minutes due to traffic on the Sharjah and Ajman corridors.
What stops does the E400 bus make?
The E400 has 10–11 stops from Union Square, Dubai to Al Musallah, Ajman. Key stops include Mahlab School (Sharjah), Ittihad Road / Ansar Mall (Sharjah), City Centre Sharjah, Thumbay Hospital (Ajman), Crown Palace Hotel, and Al Manama Mall before terminating at Al Musallah Bus Station.
Does the E400 bus run on weekends and public holidays?
Yes. The E400 operates 7 days a week including Friday, Saturday, and all UAE public holidays. Weekend schedules have slightly extended last bus times.
What is the difference between the E400 and E411 bus?
Both connect Dubai and Ajman but serve different areas. The E400 goes from Union Square (Deira/Bur Dubai) to Al Musallah (central Ajman) via Ittihad Road. The E411 runs from Etisalat Bus Station (Al Qusais) to Al Musallah with fewer stops and a slightly lower fare of AED 12.
Can I track the E400 bus in real time?
Yes. Download the RTA Dubai app or use Google Maps / Moovit to track the E400 in real time. The Transit app also provides live E400 departure times and crowding information.
Where can I buy a Nol Card for the E400 bus?
Nol Cards are available at any Dubai Metro station, Union Square Bus Station, and select retail outlets across Dubai and Sharjah. You can top up online via the RTA website or using the RTA Dubai app.
Further Reading on Urban Emirates
- Fujairah to Dubai Bus Timing: E700 Complete Guide
- How to Top Up Your Nol Card in the UAE
- RTA Bus Routes in Dubai: Complete Guide for Residents
- Getting Around Ajman: Transport Guide for Residents
- Living in Ajman as an Expat: Costs, Areas and Tips
