Bangkok · Singapore · Dubai · Last checked 18 October 2026

Bangkok vs Singapore vs Dubai: Airport Currency Exchange Compared

If your trip touches more than one of Suvarnabhumi (BKK), Changi (SIN) and Dubai International (DXB), you have probably wondered which one is the best place to change money. The short, honest answer from the sources we read is that none of them can be crowned. What you can do is compare how each airport is laid out, what each one lets you check, and which rules apply when you carry cash. That is what this guide does.

An earlier version of this page said that Changi's competition varies by terminal, with Terminals 2 and 3 having more counters than Terminal 1. It also said that the counters closest to the gate are the worst deal at all three airports, and that BKK's basement counters produce tighter rates. When we checked each airport again, the Changi claim did not hold up, the "worst deal at all three" claim had no source for Singapore or Dubai, and the Bangkok claim rests on travel guides with no dated rates. They have been removed or reworded below. Where a detail rests on a single source, we say so. Everything was last checked on 18 October 2026.

The short version

• Bangkok: the counters people rate most highly are in the basement (Level B) next to the Airport Rail Link station, according to travel guides. We found no dated rates that prove they are cheaper.
• Singapore: the best source we found lists two money changers in each of Terminals 1, 2 and 3 and one in Terminal 4. We found no evidence that any terminal beats the others.
• Dubai: the dirham is pegged to the US dollar at 3.6725, which gives you a fixed number to check any dollar quote against. It does not tell you what the counters charge.
• Cash rules differ: Thailand, Singapore and the UAE each have a declaration threshold for the cash you carry, and they are set at different amounts.
• We found no like-for-like rate comparison across the three airports, so we do not name a winner.

How the three airports are laid out

Each airport arranges its money changers differently, so the question to ask is where you will be standing when you need cash.

• Bangkok Suvarnabhumi. Backpacklife (June 2026) and Thailand Guide (reviewed September 2026) both point travellers to the basement booths beside the Airport Rail Link and away from the bank-run kiosks in the baggage reclaim hall. SuperRich and HappyRich are the independent changers they name. Our guide to the basement counters has the detail. These are travel guides, not official sources.
• Singapore Changi. THAIest, a travel site, lists UOB and a ChangiFX counter in Terminal 1, two operators in each of Terminals 2 and 3, and UOB alone in Terminal 4. Terminal 4 is separate, with a shuttle bus and no Skytrain. Our guide to Changi's terminals goes through each one.
• Dubai International. The airport's own directory lists Travelex in all three terminals, Al Ansari in Terminal 1 departures, and Emirates NBD ATMs in the Terminal 2 main terminal and in Terminal 3 departures. Our guide to Dubai's dirham peg covers it.

The practical point is that only Bangkok has a single place that guides keep recommending, and that recommendation comes from guides, not from published rates. Changi and Dubai give you a list of operators and leave the comparing to you.

What you can check with a phone

Whatever the airport, the best tool you carry is the mid-market rate on your phone, which our mid-market guide explains how to read. The difference lies in what else you can use.

• Bangkok and Singapore. You have the live mid-market rate for your currency pair, and nothing more. A counter's gap from that rate is the number to work out.
• Dubai. If you are carrying US dollars, you also have a fixed reference. The National, a UAE newspaper, reports the dirham peg at 3.6725 since November 1997, and the central bank's published rate table shows the same figure for every day of June 2026. A quote for dollars can be compared with 3.6725 directly. For other currencies, you convert to dollars first and then to dirhams, which adds a step.

The peg is useful but easily over-read. It is a reference, not the rate you will get, and counters add a margin. The sources we found give no dated figure for how far a Dubai counter normally sits from 3.6725.

Getting cash from an ATM

We could compare ATMs only partly.

• Bangkok. Two 2026 guides put the machine fee at around 220 baht for each foreign card withdrawal, on top of whatever your own bank charges. One of them says machines usually allow 20,000 to 30,000 baht per withdrawal. That limit is from a single source.
• Dubai. The airport directory confirms Emirates NBD ATMs in two terminals but says nothing about fees or limits.
• Singapore. We did not find a source on airport ATM fees, so we say nothing about them.

A flat fee takes a bigger bite from a small withdrawal. This is our arithmetic, not a quoted figure: 220 baht on a 5,000 baht withdrawal is 4.4 per cent, and on 20,000 baht it is 1.1 per cent. Our guide to ATMs versus forex cards covers how the fees stack.

The currency prompt

At an ATM or a card terminal in any of the three countries, a machine may offer to charge you in your home currency. This is Dynamic Currency Conversion. The sources we read for the other guides treat it as an added cost you can avoid, and our advice is to choose the local currency every time: baht, Singapore dollars or dirhams. Our guide to Dynamic Currency Conversion explains why.

Rules for the cash you carry

Each country sets its own threshold for declaring cash. The sources and dates differ, so check the current rule before you fly.

• Thailand. The Thai government portal, on a page last updated on 10 July 2023, says there is no limit on bringing baht in. It says foreign currency totals above USD 20,000, or the equivalent, must be declared, and so must amounts above 450,000 baht. Tourists can take up to 50,000 baht per person out. The page itself warns that the limits may have changed. Those figures are three years old.
• Singapore. The Singapore Police Force says anyone moving physical currency or similar instruments above S$20,000, or the equivalent, into or out of Singapore must file a cash movement report. Travellers file Form NP 727 online, within 72 hours before arrival or departure. The page, last updated on 26 April 2025, says failing to give a full and accurate report is an offence, with a fine of up to S$50,000, up to three years in prison, or both. It also says the regime is not a currency control: there is no limit on how much cash you may move.
• Dubai. The UAE government's customs page says passengers must declare cash, financial instruments, precious metals and valuable stones when the total is above AED 60,000, or the equivalent, both on arrival and on departure. A property website's February 2026 article gives the same figure.

For most holidaymakers none of these thresholds matters. They matter if you carry large sums, and a missed declaration can be an offence, so read the official page for your route.

Opening hours and cash you may need on arrival

Two practical points differ by airport, and both come from our other guides.

• Bangkok. From 15 September 2026, Indian passport holders enter visa-free for up to 30 days, according to the Royal Thai Embassy in New Delhi, so they do not need visa on arrival. For other passports that still use it, a visa guide updated in September 2026 says the fee is 2,000 baht, payable in cash and in Thai currency only. That comes from a single source, so confirm it with the official Thai government site before you travel. The same guide says exchange booths sit in the hall just before the visa counters, so you can change the fee amount before you join the queue.
• Singapore. Travelex bureaux are described as open 24 hours in two sources, and THAIest says the changers are supposed to be open all day. We could not confirm the hours of each UOB branch.
• Dubai. The airport pages we read do not list opening hours for any exchange counter, so we cannot say what is open at an early or late hour.

If you land at an awkward hour, do not count on a particular counter being open.

What is the same, and what is different

It helps to separate the things that hold at all three airports from the things that do not.

The same at all three, as far as our sources go:

• You can check any quote against a reference. At Bangkok and Singapore the reference is the mid-market rate on your phone, and at Dubai it is the same plus the fixed dollar peg.
• A machine may offer to convert the amount into your home currency, and the better choice in our reading is the local currency.
• A cash declaration threshold applies, and the rules are published by the government of each country.
• No source we found describes any of the three airports as a place with no margin at all. A counter is selling a service, and its margin is a price you can measure.

Different at each airport:

• The layout. Bangkok is described by floor, Changi by terminal and Dubai by a list of operators in each terminal.
• The reference. Dubai alone has a fixed peg for dollars.
• The information we could find on ATM fees. Bangkok has a reported figure, Dubai has none, and we found nothing for Singapore.
• The age of the rules. The Thai cash figures come from a 2023 page, the Singapore ones from April 2025, and the UAE page shows no date.

If you are connecting between these airports

Many routes pass through more than one of these hubs. Our advice, not a sourced fact, is to plan the connection around the flights and treat the exchange as a small step. Changi's own site says Terminal 4 is separate and reached by shuttle, so a change of terminal needs extra time. If you leave an airport and re-enter, the declaration thresholds above apply to each country you enter or leave, and because we found no cross-airport rate comparison, we would not plan a route around a hoped-for better rate.

A worked example, with made-up numbers

The rates below are invented to show how the same check works at three airports. They are not real quotes.

• Bangkok. The mid-market rate on your phone is 36.00 baht per US dollar, and a counter offers 35.20. The gap is 0.80, divided by 36.00, which is about 2.2 per cent.
• Singapore. The mid-market rate is 1.30 Singapore dollars per US dollar, and a counter offers 1.27. The gap is 0.03, divided by 1.30, which is about 2.3 per cent.
• Dubai. You do not need your phone for dollars. The peg is 3.6725 dirhams per dollar, and a counter offers 3.55. The gap is 0.1225, divided by 3.6725, which is about 3.3 per cent.

The method is identical in all three: take the reference, subtract the offer, divide by the reference. Only the reference changes. The Dubai counter in this example is the most expensive of the three, and the Bangkok counter is the cheapest, but that tells you nothing about the airports, because the numbers are invented.

Choosing, in practice

This is our advice, based on the sources above. It is not a sourced fact.

• Landing in Bangkok with time to spare: go down to Level B and compare the boards before changing more than a small amount.
• Landing at Changi: look at the two counters in your terminal and compare them with the mid-market rate. In Terminal 4, change a small amount and compare later.
• Landing in Dubai with dollars: work out the dirham value with the peg, ask for the total before you hand over cash, and compare it with your figure.
• Connecting through all three: change only what you need for the next few hours at each stop, and keep a record of the mid-market rate each time.

What we could not confirm

• Which airport has the cheapest rates. We found no dated, like-for-like rates across the three.
• That Bangkok's basement booths give better rates than the arrivals hall. Guides recommend them, but give no dated numbers.
• That any Changi terminal has more competition than another. The lineup does not support it.
• That the counters closest to the gate are the worst deal at Singapore or Dubai. We found no source.
• What a normal gap from 3.6725 is at Dubai counters.
• ATM fees and limits at Changi and Dubai.
• Whether Thailand's 2023 cash limits are still in force. The page says they may have changed.
• Anything from the airports' own rate boards. Every rate-related detail comes from third-party pages.

A simple plan

1. Before you fly, note the mid-market rate for your pair and, for Dubai, the peg of 3.6725.
2. Decide how much cash you need for the first few hours, and change only that.
3. At the counter, work out the gap with the three-step check.
4. Choose the local currency if a machine asks how you want to be charged.
5. If you carry large sums, read the official cash declaration page for each country on your route.

FAQ

Which of Bangkok, Singapore and Dubai has the best airport exchange rates?
We could not find dated, like-for-like rates, so we do not name one. The method in this guide works at all three.

Does the Dubai peg make Dubai cheaper?
No. It gives you a fixed reference for dollars. Counters still add a margin.

Is the Bangkok basement really better?
Travel guides say so. We found no dated rates to prove it, so compare the boards on the day.

Do I have to declare cash?
It depends on the amount and the country. The thresholds we found are above USD 20,000 in Thailand, above S$20,000 in Singapore and above AED 60,000 in the UAE, or the equivalent, though the Thai page dates from 2023.

Sources and how we checked them

Checked on 18 October 2026. Where we call something confirmed, at least two of these sources agree. Several are travel guides or commercial sites, and none are the airports' own rate boards.

• Backpacklife, travel guide, published June 2026.
• Thailand Guide, arrivals guide, reviewed September 2026.
• THAIest, travel site, Changi money changer page, updated 25 November 2025.
• Dubai Airports, official site, Travelex, Al Ansari and Emirates NBD directory pages.
• The National, news, UAE dirham and dollar peg, published 22 November 2024 and updated 28 August 2025.
• Central Bank of the UAE, official rate table, June 2026.
• Thailand.go.th, government portal, bringing Thai or foreign currency in and out, updated 10 July 2023.
• Singapore Police Force, official site, cross-border cash movement reporting, updated 26 April 2025.
• UAE Government portal, customs clearance page (no date shown).
• Property Finder, property website, cash declaration article, 25 February 2026.

Editorial note: The counter, rate and airport information in this guide is editorial and is not paid for. Rates and fees change, so confirm the final rate at the counter before exchanging.