O2 roaming in Thailand: what it costs, and when an eSIM is cheaper
Data in Thailand is included with Ultimate Plans (O2 Travel Inclusive Zone Ultimate). Otherwise, it costs £7.00/day (O2 Travel Bolt On). An eSIM for 7 days and 6 GB costs from $9.50 (Jetpac).
Rates checked on October 21, 2026 in the official price guide · Source: O2
The best eSIMs in Thailand for a week
For 7 days and 6 GB
- 1Best unlimited
Ubigi
Unlimited · 7 days
$22.00$3.14 per day- 25 GB at full speed, then reduced speed
- Networks: AIS and True
- Hotspot allowed
- 2Cheapest
Jetpac
10 GB · 7 days
$9.50$0.95 per GB- Lowest total price for 7 days
- Network: AIS
- Hotspot allowed
- 3Best price per GB
Nomad
50 GB · 10 days
$15.00$0.30 per GB- Lowest price per GB for this trip
- Network: True
- Hotspot allowed
Three steps, three questions: the best unlimited plan, the cheapest and the best price per GB, from three different providers. How we pick the podium · Affiliate links
O2 or an eSIM in Thailand: our verdict
Depending on your plan and trip length, at the prices read on October 21, 2026.
If your plan includes Thailand
Keep O2
With Ultimate Plans (O2 Travel Inclusive Zone Ultimate), data in Thailand is included at no extra cost, within your allowance abroad.
Otherwise, with O2
£7.00/day
O2 Travel Bolt On. For 7 days and 6 GB, expect £49.00.
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Data in Thailand with O2: our analysis
What O2’s rate sheet and eSIM prices show, as checked on October 21, 2026.
The right pass for your trip length
- 3 days3 × O2 Travel Bolt On£21.00
- 1 week7 × O2 Travel Bolt On£49.00
- 2 weeks14 × O2 Travel Bolt On£98.00
- 1 month30 × O2 Travel Bolt On£210.00
Against the cheapest eSIM
O2 charges in GBP and the cheapest eSIM is sold in USD: we convert nothing. For a week, expect £49.00 with O2 and $9.50 with the eSIM (Jetpac).
eSIMs in Thailand at a glance
- In Thailand, we compare plans from 7 eSIM providers: GigSky, GoMoWorld, Jetpac, Nomad, Orange Travel, Ubigi, and Yesim.
- The cheapest unlimited plan for a week is from Ubigi: $22.00 (Unlimited · 7 days).
- Locally, the cheapest prepaid SIM card for a week costs ฿349 (True, unlimited data, 10 days); see our SIM card comparison in Thailand.
O2 applies the same rate in 14 other destinations we track, including Australia, Canada, China, Egypt, and India.
Plan by plan
What applies in Thailand depending on your O2 plan.
What O2’s official rate sheet sets out in Thailand, offer by offer. “Included” means at no extra cost, within your allowance abroad: your O2 account shows the one on your line.
| Plan or offer | Data in Thailand |
|---|---|
| O2 Travel Bolt On | £7.00/day |
| Ultimate Plans (O2 Travel Inclusive Zone Ultimate) | Included |
What your trip costs
With the O2 roaming rate, against today’s cheapest eSIM, for everyday use.
| Trip | With O2 | Cheapest eSIM | The offer |
|---|---|---|---|
| 3 days · 3 GB | £21.00 3 × O2 Travel Bolt On | $4.00 Jetpac | See the plan |
| 7 days · 6 GB | £49.00 7 × O2 Travel Bolt On | $9.50 Jetpac | See the plan |
| 14 days · 12 GB | £98.00 14 × O2 Travel Bolt On | $12.50 Jetpac | See the plan |
| 30 days · 24 GB | £210.00 30 × O2 Travel Bolt On | $23.99 Jetpac | See the plan |
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Thailand with other UK carriers
The same trip with the other UK carriers we track, from their official rate sheets.
Of the 4 UK carriers we track, 3 include Thailand in at least one plan: EE, O2, and Three.
EE
Three
VodafoneTurn off O2 roaming and use an eSIM
Four settings, before you leave or on the plane.
- 1
Install the eSIM at home
Buy it and scan its QR code before you leave: with most providers, the plan only starts when you first connect at your destination.
- 2
Keep O2 for calls
In your settings, keep your O2 line for calls and texts, and pick the eSIM for mobile data.
- 3
Turn off O2 roaming
On iPhone: Settings › Cellular › your O2 line › Data Roaming. On Android: Settings › Mobile networks › Roaming.
- 4
Keep eSIM roaming on
A travel eSIM uses the local networks: its data roaming must stay on.
O2 roaming in Thailand: your questions
Answered from the O2 price guide and today’s prices.
Is data in Thailand included in my O2 plan?
Yes, with Ultimate Plans (O2 Travel Inclusive Zone Ultimate). Otherwise, it costs £7.00/day (O2 Travel Bolt On).
How much does data cost in Thailand with O2?
£7.00/day (O2 Travel Bolt On), so £49.00 for 7 days and 6 GB. An eSIM covering the same week costs from $9.50 (Jetpac), checked on October 21, 2026.
Which O2 pass should I get for Thailand?
The best O2 option depends on how long you stay: for 3 days, 3 × O2 Travel Bolt On (£21.00); for a week, 7 × O2 Travel Bolt On (£49.00); for two weeks, 14 × O2 Travel Bolt On (£98.00); for a month, 30 × O2 Travel Bolt On (£210.00).
O2 or an eSIM in Thailand: which is cheaper?
O2 charges in GBP and the cheapest eSIM is sold in USD: we convert nothing. For a week, expect £49.00 with O2 and $9.50 with the eSIM (Jetpac).
Which UK carriers include Thailand?
Of the 4 UK carriers we track, 3 include Thailand in at least one plan: EE, O2, and Three.
Which network does an eSIM use in Thailand?
The cheapest one-week eSIM (Jetpac) uses AIS. Depending on the plan, the 7 providers we compare in Thailand list AIS, dtac, True, and NT.
How do I avoid roaming charges in Thailand?
Use a travel eSIM for data and turn off data roaming on your O2 line. You keep your number for calls and texts.
Can I keep my O2 number with an eSIM?
Yes, on an eSIM-compatible phone: your O2 line stays on for calls and texts while the eSIM carries the data.
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