Comparing Flight and Hotel Prices by Country, Fairly
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The same flight or hotel room can show a different price depending on the country you browse from, the currency you pick and which market version of the site you land on. To compare travel prices by country properly, keep everything else identical and change only where you browse from: one fixed proxy per country, a clean browser profile for each view, and the same dates, cabin and refund conditions. This guide covers that routine, why prices differ in the first place, and the cases where a cheaper fare is one you are not entitled to buy.
Why prices can change with your location
Airlines, hotels and online travel agencies often sell through several market-specific points of sale. Each can have its own fares, promotions, tax display and currency. Sites work out your market from several signals: your IP address is an important one, alongside browser language, the country domain and what you select on the page.
There is not always a difference, and when there is, it does not always favour you. Often the gap is just exchange rates or how taxes are shown. Compare the final total at checkout in one currency, not the headline number on the search page.
What to keep constant
| Variable | Keep it the same | Note |
|---|---|---|
| Itinerary | Same route, date and flight time | Different times naturally cost differently |
| Cabin and baggage | Same class and allowance | Cheap fares often drop checked bags |
| Refund rules | Same fare type | Non-refundable is always cheaper |
| Currency | Convert to one | Include your card's foreign transaction fee |
| Timing | Check all countries within minutes | Availability-based prices move constantly |
| Login state | Logged out, clean profile | Member prices skew the comparison |
Step-by-step comparison
- Pick the countries. Usually the departure country, the destination and a few large markets. VinaProxy offers private IPv4 in Vietnam, the US, Japan, South Korea, Singapore, the UK and Hong Kong, such as a Singapore proxy or a South Korea proxy.
- Create one browser profile per country with a fixed proxy. Firefox with a proxy extension works, see the FoxyProxy setup, or use an antidetect browser.
- Confirm each profile's IP with the my IP tool.
- Open the official airline or hotel site and let it choose the market. Note the domain and language version it sends you to.
- Search the same itinerary and go to the step just before payment details to see the all-in total.
- Convert to one currency at your bank's rate and add any foreign transaction fee.
- Read the fare conditions in each market before deciding which is cheaper.
Cheaper does not mean you can buy it
Some fares are only for residents or citizens of a country, for cards issued there, or for members of a specific programme. Airlines can ask for proof at check-in, and if you are not eligible the ticket can be refused or repriced. Using a proxy to view prices is reasonable; using one to misstate your residence and buy a fare meant for someone else breaks the conditions of sale, and the risk is yours.
Many travel sites also prohibit automated data collection in their terms. If you are building a price tracker for a business, prefer APIs or licensed data, limit request rates, and read ecommerce price monitoring with proxies for a responsible setup.
Cookies, history and the "price goes up" theory
Many people believe that viewing the same flight repeatedly raises its price. We have no data to confirm or rule that out, and availability-based fares change as seats sell anyway. Clearing cookies and using a clean profile is still good practice, because it stops the site remembering the market or currency you chose last time and skewing the next comparison.
Check for location leaks too. If WebRTC or your system clock reveals that you are in Vietnam while the IP is in the UK, the site may pick the wrong market. Test with the WebRTC leak test.
Practical booking tips
- Once you find a market with a better price that you qualify for, book directly on the official site or a reputable agency.
- Pay with a method that market accepts; some local versions take domestic cards only.
- Keep the same proxy for the whole booking so the session does not switch markets midway.
- Screenshot the price and conditions at booking time in case of a dispute.
- A proxy adds no encryption and does not replace a VPN on public Wi-Fi; see proxy vs VPN.
Frequently asked questions
Is it illegal to check fares through a proxy?
Viewing public prices from another location is generally fine. The problems are buying fares meant for groups you do not belong to, or scraping against a site's terms.
Is buying from another country always cheaper?
No. Often the gap is exchange rates and tax display. Compare the final total in one currency, including card fees.
Which proxy type should I use?
Private IPv4 is enough because you only view pages. Use a fixed proxy so each comparison comes from the same IP in that country.
Can I compare prices by city?
No. VinaProxy proxies are selected by country; city and state selection is not available.
One fixed IP per market
Private IPv4 proxies in 7 countries with unlimited bandwidth. The IP stays the same when you renew. Activated automatically after payment.
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