Choose a data plan for your trip
Select your destination and buy your travel eSIM data plan. Pay with card, Apple Pay, Google Pay, or PayPal — no account hoops.
Thailand eSIM
A Flylo unlimited-data eSIM for Thailand is from $2.60/day — around 33% below Holafly's lowest unlimited rate ($3.90/day). It runs on DTAC TriNet at up to 5G, and installs from your browser in about 60 seconds — no app to download.
Choose your eSIM data plan for Thailand:
How many travelers?
One eSIM per person
1
Buy before you fly — your plan only starts when you first connect in Thailand.
Visiting more than Thailand?
Secure checkout
- Unlimited 4G/5G
- Works in 190+ countries
- Install in 60 seconds
- Tether / hotspot included
- Ultra-fast internet anywhere you travel
Thailand eSIM: Flylo vs Holafly vs Airalo
Flylo's unlimited Thailand eSIM is around 33% cheaper per day than Holafly's lowest advertised unlimited plan.
| Provider | Plan | Lowest advertised price |
|---|---|---|
| Flylo | Unlimited data | from $2.60/day |
| Holafly | Unlimited data | from $3.90/day |
| Airalo | 1 GB - 3 days (capped) | from £3.50 |
Competitor prices checked automatically from their public pages — last checked 2026-07-13. Flylo prices are our live rates. Comparison is each provider's lowest advertised price for an eSIM in Thailand; competitors' plans differ in data and duration.
Cheapest Thailand eSIM → · eSIM Price Index → · Flylo vs Holafly →
Networks & coverage in Thailand
Your Flylo eSIM connects to Thailand's leading mobile network, with speeds up to 5G where available:
- DTAC TriNet2G / 3G / 4G / 5G
Coverage is strong and fast across Bangkok, Chiang Mai, Phuket and the main resort islands, with 5G common in cities. It thins out in the remote northern hills, deep jungle, smaller islands and mid-sea ferry crossings.
Staying connected in Thailand
Thailand is one of the easiest places in Asia to stay connected. Your Flylo eSIM connects to DTAC TriNet, which reaches up to 5G, and coverage across the country is genuinely strong. In Bangkok, Chiang Mai, Phuket, Pattaya and the main tourist islands you will find reliable data almost everywhere: hotels, shopping malls, street markets, the BTS Skytrain and the airports all sit comfortably within the network's footprint. 5G is now common across the larger cities and resort areas, while 4G blankets most towns and main roads.
Where signal gets patchier is the predictable places: remote stretches of the northern hills around Pai and Mae Hong Son, dense jungle inside the national parks, and the smaller, less-developed islands off the Andaman and Gulf coasts. On boats and long ferry crossings, such as the run out to Koh Tao or the far Similans, expect it to drop out mid-water and pick up again as you near land. Download offline maps and any ferry or train tickets before heading somewhere rural.
A few practical notes. Keep Data Roaming switched on so the eSIM can connect: this is normal for any travel eSIM and does not trigger home-network charges. You can tether or hotspot to a laptop or a travelling companion's phone with no extra setup. And because the eSIM runs alongside your usual SIM, you can keep your UK number live for calls and texts while using Thai data, just set the eSIM as your default for mobile data. Install it before you fly and it is ready the moment you land at Suvarnabhumi or Don Mueang.
Setting up your Thailand eSIM
Install before you travel and the eSIM activates automatically when you land and connect to the network. Make sure Data Roaming is switched on for the eSIM line, as it will not connect without it.
How much data will you need?
As a rough guide, five days of maps, messaging, social media and the odd video call is around 3-5 GB. Estimate your trip with our data calculator →
How to get an eSIM for Thailand
Three steps. No SIM swap, no waiting at the airport, no roaming bill shock.
Set up your eSIM
One tap on a modern iPhone (iOS 17.4+) or Android — your eSIM installs straight into Settings. No app required if you don't want one.
Land in Thailand, you're online
Your plan activates the moment your phone connects to a local tower. Your home SIM stays active for calls + texts; Flylo handles data.
How Flylo stacks up
Real comparison against the four big eSIM providers — same destination, same plan length.
| Feature |  |
 |
 |
||
|---|---|---|---|---|---|
| Unlimited data plans | |||||
| From $1.97 / day | |||||
| No app required to install | |||||
| Apple Pay + Google Pay + PayPal | |||||
| Tether / hotspot included | |||||
| 5G where carriers support it | |||||
| Cheaper than competitors | |||||
| Refunds if it doesn't work |
Get the Flylo app
Same eSIMs, same prices — plus saved plans, in-app install, and a single tap to top up when you cross a border. Free on iOS & Android.
Travelling beyond Thailand?
Popular eSIM destinations travellers pair with Thailand:
FAQs about eSIMs for Thailand
Does a Flylo eSIM work in Thailand?
Yes. It works throughout the country, connecting to local networks including DTAC TriNet, which supports speeds up to 5G. You just need an eSIM-compatible, unlocked phone.
Will I get coverage in rural areas and on the islands?
Coverage is excellent in cities and the main resort areas. It can weaken in the remote northern hills, deep jungle in national parks, on smaller undeveloped islands and during long ferry crossings, so download offline maps before heading off-grid.
Does the eSIM come with a phone number?
No, it is a data-only eSIM, so there is no Thai phone number for regular calls or texts. You can still make calls and send messages over the internet using apps like WhatsApp, FaceTime or Telegram.
Can I use my phone as a hotspot or tether other devices?
Yes. You can share the connection to a laptop, tablet or a travelling companion's phone via personal hotspot, with no extra setup required.
What happens when I have used a lot of data on an unlimited plan?
You can keep using data throughout your trip. Speeds may be reduced after a fair-use threshold, but your connection is not cut off, so essentials like maps and messaging keep working.
Do I need to turn on Data Roaming?
Yes. Data Roaming must be switched on for the eSIM line so it can connect to the Thai network. This is standard for travel eSIMs and does not incur any charges from your home provider.
Can I keep my home SIM active at the same time?
Yes. The eSIM runs alongside your existing SIM, so you can keep your UK number active for calls and texts while using the eSIM for data. Just set the eSIM as your default for mobile data.
When should I install and activate it?
Install the eSIM before you fly, while you still have your home internet. It then activates automatically once you arrive in Thailand and connect to the network.
Are eSIMs available in Thailand?
Yes. Flylo eSIMs work across Thailand on the strongest local 4G/5G carriers, with automatic network fallover so you stay online in cities, airports, on trains, and in rural stretches.
What is the best eSIM for travelling in Thailand?
Flylo is one of the cheapest unlimited-data eSIMs for Thailand — typically well below Holafly's and Airalo's per-day prices on the routes we track, and you can check our live comparison on the page. Install in 60 seconds, no SIM swap, no roaming bill.
How much does an eSIM for Thailand cost?
Flylo Thailand eSIMs start at $2.60/day for unlimited data. Durations run from short-stay plans up to a month — pick the length that matches your trip. No overages, no per-MB billing, and the price you see is the price you pay at checkout.
How do I buy an eSIM for Thailand?
Pick a plan above (1 to 30 days, all unlimited), pay with card, Apple Pay, Google Pay or PayPal, and the eSIM arrives by email in under a minute. No account hoops, no app forced on you.
How do I activate an eSIM in Thailand instantly?
Install the eSIM before you fly — it takes 60 seconds on a modern iPhone or Android. The eSIM activates the moment your phone connects to a tower in Thailand, typically as you taxi off the runway.
Does Flylo eSIM in Thailand support 5G?
Yes — Flylo plans run at full 5G speeds in any region of Thailand where the local carrier supports it, and 4G LTE everywhere else. Unlimited plans include a generous daily full-speed allowance; beyond it, speeds may be reduced until the allowance refreshes — your data never cuts off.