Where do the gaps come from?
Some sites price each market on its own, because of currency or a promotion that runs in only one country. So a morning seat to Osaka might read one figure for a visitor from Seoul and another for one from Toronto.
Many sites charge everyone alike, and no country is always the cheapest. Taxes, booking fees and exchange rates can turn a lower listed price into a higher total.
A comparison you can trust
Write down the price on your usual connection first. Then switch the dial to the other country, open an incognito tab and click through to the screen right before you'd pay. Compare those final totals.
Being logged in, or carrying old cookies, nudges results too. Use a private window, or sign out, so the comparison stays clean.
- Baseline: total price without changing servers
- Dial to the second country
- Incognito tab, final total including fees
Booking from a hotspot
If you're booking on airport Wi-Fi, turn CoxVPN on before opening the site, so the login and payment pages go through the tunnel.
Plus and Pro also block known phishing pages, such as fake shops and the fake parcel tracking sites that text messages link to.
What should I check before paying?
Cards don't travel equally well. A shop may refuse your card if its billing address sits in another region, and your card issuer may hold a payment made from a foreign IP until you confirm it.
Look at the shop's rules too. Some sell only to customers in their own region, and returns or support may be handled by the region where you paid.