Route from Chiang Mai to Koh Samui or Krabi
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Translated into English.

Original post
FL
Hi there, During our Thailand trip, we're planning to arrive in Bangkok and then head up to Chiang Mai. So far, so good. But after that, we'd like to go to the islands—either Krabi or Koh Samui. However, the flights listed on 12go.asia seem complicated, with a layover of about 1 hour in Bangkok where we'd have to collect our luggage and check in for the second flight. That feels way too tight.

So, I'd love to hear about your experiences with this route and any tips you might have. Thanks everyone!
BO Bobbits66 ·
Hey! This itinerary is awesome—it’s exactly what I did a few months ago. For domestic flights in Thailand, I totally get your concerns about connections in Bangkok: often, you *do* have to collect your luggage, go through security again, and check in for the next flight (especially if you’re switching airlines or airports between Don Mueang and Suvarnabhumi). My experience:

1-hour layover in Bangkok is *really* tight (especially with delays, long immigration lines, etc.). Honestly, I’d recommend at least 2 hours, or even more if you’re not into sprinting.

If possible, stick with one airline (or at least code-share/"same ticket" flights): that way, your bags can be transferred automatically, and you won’t have to recheck them. Otherwise, you’ll have to collect them and start all over.

Watch out for Bangkok’s two airports: Don Mueang (DMK) and Suvarnabhumi (BKK)! Some island flights leave from both, but they’re pretty far apart, so double-check your ticket’s departure/arrival airport.

For the islands:

Krabi is great for accessing Railay, Koh Lanta, Phi Phi, etc.

Koh Samui is more "chill" and has direct flights from Bangkok, but it’s often a bit pricier.

Quick tip:

If you’ve got time, consider an overnight train from Chiang Mai to Bangkok, then a relaxed flight to the islands the next day (avoids the stress of super-short connections).

Check out low-cost airlines (Nok Air, AirAsia, Bangkok Airways)—they sometimes offer "flight + ferry" packages to reach the islands directly, which is super convenient and often budget-friendly.

Bottom line: 1 hour is *tight*. Give yourself some extra time, even if it means a little break in Bangkok (there’s always something to do!). Have an amazing trip and enjoy Thailand—it’s an incredible destination!
Toujours prêt à partager mes bons plans, ici ou ailleurs !
SO Songsam Veteran ·
Hi there, Don’t ever rely on booking sites like the one you mentioned (and plenty of others like it) for transport options from A to B.

Chiang Mai–Krabi: 2 to 3 direct flights daily (usually 3) with the low-cost airline AirAsia. Chiang Mai–Koh Samui: 1 to 2 direct flight(s) daily with Bangkok Airways (pricey because, on top of being a super convenient route, it’s not a low-cost airline and they have a monopoly on the destination).
FL Florenzino13 ·
Thanks for this info—I’ll check out those sites
FL Florenzino13 ·
Thanks for your reply! Yeah, taking the train back to Bangkok is also an option, but it’s longer… I’ll look into all this 😊
JO Jojoone1 Globetrotter ·
Don’t make life complicated: there are half a dozen low-cost airlines, and the best one is AirAsia. A direct flight is still better for 1,500 km. By booking as far in advance as possible, you can even get some pretty good deals.

Buses take forever, and the trains are real slowpokes.
« Tout le monde s'interroge sur comment laisser une meilleure planète à nos enfants, mais on devrait plutôt penser à laisser de meilleurs enfants pour notre planète. » Clint Eastwood
SO Songsam Veteran ·
there are half a dozen low-cost airlines

Let’s not get carried away: when it comes to flights from Chiang Mai to the South, which is the topic here, there aren’t half a dozen airlines offering direct routes. Here’s a quick rundown of what’s available for direct flights:

Chiang Mai-Hua Hin: Low-cost AirAsia: 4 weekly flights

Chiang Mai-Phuket: Low-cost AirAsia: 4 daily flights Low-cost Thai VietJet Air*: 1 daily flight Bangkok Airways: 4 weekly flights

Chiang Mai-Krabi: Low-cost AirAsia: 2 to 3 daily flights Bangkok Airways: 3 weekly flights starting 26/10

Chiang Mai-Surat Thani: Low-cost AirAsia: 1 to 2 daily flights

Chiang Mai-Koh Samui: Bangkok Airways: 1 to 2 daily flights

Chiang Mai-Hat Yai: Low-cost AirAsia: 4 weekly flights

That’s it for departures from Chiang Mai (and that’s already not bad). Note: a daily Chiang Rai-Phuket flight from October to next March on low-cost Thai VietJet Air*. No direct flights to the South found from Mae Hong Son, Nan, Lampang, Sukhothai, or Phitsanulok.

* Has anyone tried this airline? What’s it like?

low-cost airlines, the best of which is AirAsia.

When I have the choice between the two, I prefer Nok Air.
BO Bobbits66 ·
You're welcome! Yeah, the train takes longer, but that’s part of the journey too… Good luck with your choice—don’t hesitate to ask if you want more info or tips for Thailand!
Toujours prêt à partager mes bons plans, ici ou ailleurs !
FL Florenzino13 ·
Thanks for your replies. So yeah, I still need a bit of help with booking the train. From what I see on the sites, there are good trains and bad trains.

What’s the best site to book on? Which is the best train? Is second class okay, or is the night really long in second class?

Thanks
SO Songsam Veteran ·
Sleeper or seated carriage?

From what I see on the sites, there are good trains and bad trains.

There aren’t really bad trains. Or at most, the ones you might consider "bad" are the third-class slow trains, but those don’t offer sleepers and can’t be reserved.

What’s the best site to book on?

The country’s official railway company website. More info in my first reply the day before yesterday here: https://voyageforum.com/forum/train-bangkok-chiang-mai-d10758114/

Which is the best train?

It seems the new Chinese-made trains are more comfortable than the others, but I haven’t had the chance to try them. I don’t know if they run on all routes. On the Bangkok–Chiang Mai line, yes.

Is second class okay, or is the night really long in second?

Air-conditioned second-class sleepers are just fine... as long as you bring a light layer because the AC—something Thais love—isn’t adjustable. Non-air-conditioned second-class sleepers ("fan") let you arrive without catching a cold, but unfortunately, there are hardly any trains offering those anymore. In first-class sleepers (similar to what our old sleeper cars used to be), the AC is adjustable. If the route you’re taking can also be done by low-cost flight, sometimes promotions are cheaper than a first-class sleeper.

For daytime trains, the fastest are the Express DRCs (Diesel Rail Car, self-propelled trains). Air-conditioned with meals included, served at your seat.
SM Smagghe Regular ·
Hi there,

I’ve always preferred taking the bus for my trips in Thailand—it’s part of the adventure for me, but you do need a bit of time. If that’s the case for you, why not head back to Bangkok by bus? If your flight to the islands leaves from Don Mueang, you’ll also avoid crossing Bangkok! !
FL Florenzino13 ·
Thanks for your replies. The train is booked now!!

Now that the Chiang Mai leg is sorted, we still need to decide what’s next—meaning the beach part. We’ll be in Thailand in early November, and I’ve seen that Koh Samui gets a lot of rainy days.

Should we still give it a shot? Or is there another destination where we can enjoy beautiful beaches and landscapes with a better chance of good weather? Like Pattaya and the islands near Bangkok, for example?

Thanks
SO Songsam Veteran ·
The train is booked at last!!

What did you end up booking (class, train number)?
FL Florenzino13 ·
We booked Train number 9 in second class. First class was fully booked for all the trains. And there weren’t many seats left for November. It’s crazy how fast they sell out and how far in advance you have to plan!
SO Songsam Veteran ·
Train No. 9 is actually the one that has the new, more comfortable Chinese carriages.

First class was fully booked for all trains. And there weren’t many seats left for November. It’s crazy how fast they sell out and how far in advance you have to book.

Yes, it’s surprising. Personally, apart from international flights, I never book anything before leaving because I like to decide my itinerary as I go. For long-distance trains, I’ve always bought my tickets at the station* at most a week before—never earlier—though on a few rare occasions on less busy lines, I’ve even booked the same day for that evening. This makes me think there must be separate seat allocations for online bookings and station bookings. I didn’t mention it because I didn’t want to plant any doubts in your mind, which I try to avoid in my replies.

* Not necessarily at the departure station, since they’re all computerized.

Regarding your question about beach destinations, I can’t help much because the beach isn’t my thing at all. Since this topic is shifting a bit from the original thread title, I’ll suggest creating a new, specific one to get better visibility.

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