The overnight train is the most comfortable way from Hanoi to Phong Nha. SE1 leaves Hanoi at 21:45 and reaches Dong Hoi at 07:21, and a car covers the last 38 km in about 45 minutes, so you are at the caves by breakfast without paying for a hotel that night. Direct sleeper buses go all the way to Phong Nha village for less, but most evening departures arrive in the small hours. Flying to Dong Hoi is the quickest option, about 5 hours door to door, with two direct flights listed for 28 October.
How we built this guide: on 19 October 2026 we checked Vietnam Railways' official timetables for Wednesday 28 October 2026, Vietnam Railways fares for that date as sold by Baolau, an official railway agent, bus, flight and car listings on 12Go and Vexere for the same day, Vietnam's tourism board, two Phong Nha tour operators' seasonal advice, and news reports on cave closures from 2020 to 2026. We did not make the trip for this guide. Prices are in Vietnamese dong (VND) with US dollar estimates at Vietcombank's selling rate of 26,080 VND per dollar on 19 October 2026.
Which way from Hanoi to Phong Nha suits you?
Take the night train for comfort, the daytime bus for a door-to-door ride that arrives in daylight, and the flight if you only have a couple of days. Our Phong Nha guide covers which caves to see once you are there.
| Mode | Time, Hanoi to Phong Nha | Price seen on 19 Oct 2026, for 28 Oct | Comfort and reliability | Best for |
|---|---|---|---|---|
| Night train to Dong Hoi, then a car | About 10.5 to 11 hours | 4-berth sleeper from 1,055,000 VND (about $40) on SE3, plus a car from 765,000 VND per vehicle | Lie-flat berth, then a 45-minute drive | Most travelers, families |
| Direct sleeper or cabin bus | 7 to 10 hours | From about 310,000 VND (about $12) on Vexere; 446,250 VND on 12Go | Drops in Phong Nha village; night buses arrive 01:00 to 05:30 | Lowest fare |
| Flight to Dong Hoi, then a car | About 5 hours door to door | From 787,181 VND (about $30) on Vexere, plus the car | Two direct flights on 28 Oct, about 70 minutes in the air | Short trips |
| Private car | About 8 hours | From 5,400,039 VND per car (about $207) on 12Go | Door to door, stop where you like | Groups who want to stop on the way |
How long does each option really take?
Count on 10.5 to 11 hours by train and car, 7 to 10 hours by bus, and about 5 hours if you fly.
Night train to Dong Hoi, then a car: 10.5 to 11 hours
Every train is a North-South express from Hanoi Railway Station. Vietnam Railways' timetable for 28 October 2026 lists six, and the fares below are the Vietnam Railways prices that Baolau showed for that day.
| Train | Leaves Hanoi | Arrives Dong Hoi | Time | Fares seen on Baolau |
|---|---|---|---|---|
| SE7 | 06:00 | 16:15 | 10 h 15 min | From 383,000 VND |
| SE5 | 08:00 | 17:59 | 9 h 59 min | From 462,000 VND |
| SE9 | 13:00 | 23:45 | 10 h 45 min | From 383,000 VND |
| SE3 | 19:20 | 04:45 | 9 h 25 min | Premium soft seat 484,000; 6-berth from 848,000; 4-berth from 1,055,000 VND |
| SE19 | 19:45 | 05:16 | 9 h 31 min | 4-berth from 1,071,000 VND (sleepers only) |
| SE1 | 21:45 | 07:21 | 9 h 36 min | Premium soft seat 458,000; 6-berth from 876,000; 4-berth from 1,640,000 VND |
SE1 has the friendliest timing, and SE3 is the one to pick if you want to start early. SE1's cheapest 4-berth bed cost far more than SE3's on the day we checked, so compare the two before you book. Private cabins from companies such as Violette Trains, Lotus Train and Laman Express ride on SE1, SE3 and SE19 at the same times, listed on Baolau at 1.8 to 4.2 million VND (about $69 to $161).
Direct bus to Phong Nha village: 7 to 10 hours
Buses skip the change at Dong Hoi and drop you at hostels and offices in Phong Nha village. 12Go listed 121 buses for 28 October 2026, from 446,250 VND:
- HK Buslines: a cabin bus from 76 Hong Tien at 08:00, arriving at Central Backpackers Hostel at 15:00 (7 hours), 733,320 VND for an upper cabin (about $28).
- King Express Bus: a sleeper from 19 Hang Thiec at 17:00, arriving at 03:00, 527,250 VND (about $20).
- Thuan Hung Travel: cabin buses from 54 Tran Nhat Duat at 06:30 (arriving 15:30) and 19:00 (arriving 04:00), 446,250 VND.
On Vexere the same day, Thuan Hung's 12:15 departure cost 310,000 VND with an early-booking discount, and TNT Travel's VIP cabin buses left 15 Hang Muoi at 18:00 and 21:00 for 650,000 VND, timed at 7 hours 30 minutes. Several Vexere trips are legs of longer Hanoi to Hue or Hoi An runs, which is why they reach Phong Nha in the middle of the night.
Watch out: Reviews on 12Go from June to October 2026 mention a 4-hour delay and passengers being moved to a second bus after the first hour or so. Allow slack, and keep your passport and phone with you on board.
Flight to Dong Hoi: about 70 minutes in the air
Two airlines were selling direct flights for 28 October 2026. On Vexere, Sun PhuQuoc Airways' 9G1425 left Noi Bai at 10:20 and landed at 11:25 from 787,181 VND, with a checked bag included in that fare, and Vietnam Airlines' VN1591 left at 08:40 and landed at 09:50 from 826,139 VND for a cabin-bag-only fare. 12Go and Baolau showed VN1591 at about 789,000 to 815,000 VND. Sun PhuQuoc Airways announced the route from 16 August 2026, with one round trip a day, per Doanh Nghiep Hoi Nhap. We saw no Vietjet flight listed for that day.
Door to door, flying takes about 5 hours by our sum: 40 minutes from the Old Quarter to Noi Bai (see our Noi Bai airport guide), the 2 hours 20 minutes of airport time our fly-or-ride research allows, the flight, and about an hour by road from Dong Hoi airport, which Vietnam's tourism board puts about 45 km from Phong Nha.
Private car: about 8 hours
12Go listed one car service, timed at 7 hours 50 minutes, from 5,400,039 VND per vehicle, or 6,000,014 VND for a 5-seat SUV. It only pays off for a group that wants to stop on the way.
How do you get from Dong Hoi to Phong Nha?
Take a pre-booked car or a local bus for the last 38 km. On 12Go for 28 October 2026, cars from Dong Hoi started at 765,000 VND (about $29) per vehicle, timed at 45 to 50 minutes, and one firm offered pickups at the train station for 795,000 VND. Vietnam's tourism board, in its Phong Nha guide, describes local buses from 35,000 VND that run hourly from 05:00 to 17:00, except around noon, and take 45 to 90 minutes from bus terminals a few kilometers from the station and airport.
Tip: Arriving on SE3 at 04:45? Book the car the day before, or ask your Phong Nha hotel to send one, since the first local bus is not until about 05:00 and it does not leave from the station.
Are the caves and boats open when you arrive?
Usually yes from February to August, and only day by day from mid-September to December. Vietnam's tourism board calls September to December flood-prone and names February to August as the best time to visit, and the UK government notes seasonal flooding in central Vietnam in October and November.
- Adventure tours: Oxalis closes its tours from mid-September to the end of October, per its FAQ.
- The boat to Phong Nha Cave: the boat station closes when the Son River rises past the jetty, while Paradise Cave, a dry cave, stays open almost always, according to Jungle Boss, a local tour operator. It adds that the Dark Cave zipline is reduced or closed from mid-September and that closures are announced day by day.
- Recent closures: the park's tourism center stopped visits to Phong Nha and Tien Son caves, the Dark Cave and Nuoc Mooc on 7 October 2020 as the rivers rose, Bao Van Hoa reported, and did the same on 13 June 2025 for Storm Wutip, per DTiNews.
- Muddy water is not a closure: in July 2026 the Son River turned brown after rain upstream in Laos and visitor numbers fell about 20 percent, but boat trips to Phong Nha Cave ran as normal, Tuoi Tre reported.
If you travel in October or November, plan a spare day and ask your hotel each evening what is open. Our best time to visit Vietnam page covers the rest of the country.
Where do trains and buses leave from and arrive?
Trains run from Hanoi Railway Station at 120 Le Duan to Dong Hoi Railway Station in Nam Ly ward, per Baolau, which asks passengers to arrive 30 minutes early. Buses start at the Old Quarter offices named above and finish at Central Backpackers Hostel or company offices in Phong Nha village.
Going the other way: Phong Nha to Hanoi
The evening trains from Dong Hoi suit the trip back. Vietnam Railways' Dong Hoi to Hanoi timetable for 28 October 2026 lists SE4 at 18:18 (arriving 04:36), SE2 at 19:08 (arriving 05:42) and SE20 at 23:54 (arriving 11:10), plus daytime SE8 at 05:34 and SE6 at 08:25. By bus, 12Go listed fares from 370,500 VND, including HK Buslines from Central Backpackers Hostel at 23:30, arriving at 70 Nguyen Huu Huan at 07:00 for 733,320 VND. Sun PhuQuoc Airways announced its route as a daily round trip.
Heading south instead? Our Hue to Phong Nha guide covers the next leg, and Ninh Binh to Hue explains how to break the trip at Phong Nha if you start in Ninh Binh. Hanoi to Hue and our routes from Hanoi page cover the other options.
Key facts at a glance
- Rail distance Hanoi to Dong Hoi: 522 km; SE3 takes 9 hours 25 minutes, per Vietnam Railways.
- SE3 4-berth sleeper: from 1,055,000 VND on 28 October 2026, per Baolau.
- Direct buses: 7 to 10 hours, from 446,250 VND on 12Go and about 310,000 VND on Vexere.
- Flights: VN1591 and 9G1425, about 70 minutes, from 787,181 VND, per Vexere.
- Dong Hoi to Phong Nha: 38 km, 45 to 50 minutes, from 765,000 VND per car, per 12Go.
- Oxalis closes its tours from mid-September to the end of October, per Oxalis.
Limitations
These figures are a snapshot taken on 19 October 2026 for Wednesday 28 October, and fares change with the date, the berth and how early you book. Vietnam Railways' own fare table returned no prices when we checked, so the train fares come from Baolau, which says it passes on the railway's fares without a markup but adds a service fee at checkout. We could not see how many berths were left; check dsvn.vn. Bus times are the operators' own and slip with traffic and pickups. The seasonal advice comes partly from tour operators, and Vietnam's tourism board gives two slightly different rainy seasons on two pages, September to December and October to December. The local bus fare and timetable come from an undated tourism board page. In the flood months, confirm your train, your transfer and what is open in the park before you set off.
