Key Takeaways
From On Nut (E9) and Phra Khanong (E8), the BTS Sukhumvit line runs straight into central Bangkok: Ekkamai, Thong Lo, Phrom Phong, Asok, Nana, then on to Siam, where you change to the Silom line. Asok connects to the MRT, Phaya Thai connects to the Airport Rail Link, and Mo Chit connects to the MRT at Chatuchak Park. There is no change of train needed for any of these stops from On Nut or Phra Khanong, except where noted below.
- Phra Khanong (E8) is one stop from Ekkamai (E7) toward the centre and one stop from On Nut (E9) going out.
- Asok (E4), four stops from Phra Khanong, is where you change to the MRT Blue Line at MRT Sukhumvit station.
- Siam is the interchange with the Silom line, for the river and the Grand Palace route.
- Phaya Thai (N2) is the interchange for the Airport Rail Link to Suvarnabhumi Airport.
- Travel times are not listed here, because they change and we cannot source them. Use the official BTS map and journey planner linked below.
The official map
The authoritative map is the one published by BTS Skytrain itself. We do not reproduce it here, so you always see the current version: the BTS area map and the BTS routes and stations page. Use the guide below to read it quickly from where we live and work.
The Sukhumvit line from On Nut toward the centre
Reading the line outward from the east. Station codes starting with E are on the eastern branch, and those starting with N are on the northern one.
Bearing - Bang Na - Udom Suk - Punnawithi - Bang Chak - ON NUT (E9) - PHRA KHANONG (E8) - Ekkamai (E7)
- Thong Lo (E6) - Phrom Phong (E5) - ASOK (E4) - Nana (E3) - Phloen Chit - Chit Lom
- SIAM (CEN) - Ratchathewi - PHAYA THAI (N2) - Victory Monument (N3) - ... - Ari (N5) - ... - MO CHIT (N8)| Station | Code | Interchange or why it matters |
|---|---|---|
| On Nut | E9 | A residential and market neighbourhood, one stop east of Phra Khanong. See our On Nut guide |
| Phra Khanong | E8 | StayAt Bedever is about 15 steps from the exit. See the Phra Khanong guide |
| Ekkamai | E7 | Gateway mall and the eastern bus terminal. See where to stay near BTS Ekkamai |
| Thong Lo | E6 | Stylish dining and nightlife. See where to stay near BTS Thong Lo |
| Phrom Phong | E5 | Central Sukhumvit. See where to stay near BTS Phrom Phong |
| Asok | E4 | Interchange with MRT Sukhumvit station (MRT Blue Line). See where to stay near BTS Asok |
| Nana | E3 | Central Sukhumvit. See where to stay near BTS Nana |
| Siam | CEN | Interchange with the BTS Silom line. The main hub, and a major shopping area in itself |
| Phaya Thai | N2 | Interchange with the Airport Rail Link to Suvarnabhumi Airport |
| Mo Chit | N8 | Interchange with MRT Chatuchak Park for Chatuchak Weekend Market, which runs on Saturdays and Sundays |
Stations east of On Nut, in order, are Bang Chak, Punnawithi, Udom Suk, Bang Na and Bearing, and the line continues beyond Bearing to Kheha. Our guides cover three of them: Bang Chak, Punnawithi and Udom Suk.
How many stops to the places you want
Counting stops along the line is the quickest way to plan without a timetable. These counts follow the station order above, starting from Phra Khanong. Add one stop if you start from On Nut.
| From Phra Khanong to | Stops | Change needed |
|---|---|---|
| Ekkamai | 1 | None |
| Thong Lo | 2 | None |
| Phrom Phong | 3 | None |
| Asok | 4 | Change here for the MRT |
| Nana | 5 | None |
| Siam | 8 | Change here for the Silom line |
| Phaya Thai | 10 | Change here for the Airport Rail Link |
These are stop counts, not minutes. For travel times on the day, use the official BTS journey tools, and allow extra time in the weekday rush hours.
Interchanges, one by one
BTS Asok to MRT Sukhumvit. Asok (E4) connects directly to MRT Sukhumvit station on the MRT Blue Line. This is the transfer for Chinatown (Wat Mangkon) and Hua Lamphong. Our guide to mastering the BTS and MRT interchange stations goes step by step, and BTS-MRT interchange versus BTS-only helps if you are choosing a base.
BTS Siam to the Silom line. For the Grand Palace, the classic route from the Sukhumvit line is to change at Siam to the Silom line, get off at Saphan Taksin and take a Chao Phraya river boat. See riding Bangkok’s river boats.
BTS Phaya Thai to the Airport Rail Link. From Suvarnabhumi Airport, take the Airport Rail Link to Phaya Thai and change to the BTS Sukhumvit line. Follow the step-by-step rail guide or compare train, taxi and Grab in Suvarnabhumi to Sukhumvit. Our BTS from Suvarnabhumi versus taxi post covers the decision.
BTS Mo Chit to MRT Chatuchak Park. Mo Chit (N8) connects to MRT Chatuchak Park, which is the stop for Chatuchak Weekend Market. See the weekend guide to Chatuchak from Phra Khanong. From Don Mueang Airport you can take the A1 bus to Mo Chit and connect onto the BTS, or take the SRT Dark Red Line to Krung Thep Aphiwat. See Don Mueang to Sukhumvit and BTS from Don Mueang versus taxi.
Tickets and rules of thumb
- Buy single-journey tickets at the station machines, or use a rechargeable Rabbit card on a longer stay. Which Bangkok rail ticket fits your trip compares the options. Fares vary by distance, so check current prices at the station or on the BTS website.
- Signs, announcements and ticket machines are bilingual in Thai and English, and every station has a code.
- New to the system? The BTS Skytrain first-timer guide covers riding etiquette and a first ride step by step, and BTS vs MRT explains how the two systems differ.
- Choosing where to stay by station? Read pick your BTS stop in five minutes and our hub on where to stay in Bangkok by traveller type and area.
Plan your stay
StayAt Bedever is a boutique hotel about 15 steps from BTS Phra Khanong, run by a Singaporean hospitality team. Born to Bean, our own cafe, is downstairs, and a proper 5-Star Sleep setup is upstairs.
Book direct and you deal with the people who actually run the hotel, not a booking platform, and our direct guests get a little extra every stay.
Book StayAt Bedever direct, or just chat with us on WhatsApp or LINE.
Key Questions Answered
Which BTS line serves Phra Khanong and On Nut? The Sukhumvit line. Phra Khanong is station E8 and On Nut is E9, one stop apart, with Ekkamai (E7) one stop closer to the centre.
Where do I change from the BTS to the MRT? At Asok (E4), which connects to MRT Sukhumvit station on the MRT Blue Line, or at Mo Chit (N8), which connects to MRT Chatuchak Park.
How do I get from Phra Khanong to Siam? Ride the Sukhumvit line toward the centre. Siam is eight stops from Phra Khanong, with no change needed, and it is where you change to the Silom line.
Where is the Airport Rail Link connection? At Phaya Thai (N2) on the BTS Sukhumvit line. The Airport Rail Link runs from there to Suvarnabhumi Airport.
Where can I see the official BTS map? On the BTS Skytrain website, which publishes the current area map and the routes and stations page. Links are in the section above.
Sources
BTS Skytrain: Area Map (official)