Why does the exit country change the fare?

Because carriers and hotel chains price by point of sale, not by the currency a page is displaying. Fare buckets, taxes and sometimes inventory are configured per market, and the market is determined largely by where the request comes from.

How long can a sticky session hold for a search flow?

On ARC Basic, Fast and Ultra you set the minutes in _sesstime- and the hold is best effort with no hard cap — the dashboard generator offers one minute to 24 hours. On ARC Mobile a sticky session runs 5 to 60 minutes. An exit can still go offline early, so treat a changed IP as normal and restart the flow.

Can I target a city rather than a country?

Yes, on ARC Basic, ARC Fast and ARC Ultra, from a published list of metros. It matters less for air fares, which are usually priced nationally, and more for hotels and rail, where regional promotions are common.

What does a failed search cost me?

The bandwidth it used before it failed, and nothing else. Billing is per gigabyte of traffic, not per request or per successful result, so a retry budget is a bandwidth line rather than a separate fee.

Use case · Travel fares

Proxies for travel fare aggregation

Airlines, hotels and rail operators quote by point of sale: the same seat has a different price in Berlin, London and São Paulo. Query each market from an IP inside it so the fare you store is a fare a traveller is actually offered.

Get started See pricing

Pay per GB · No subscription · Prices in EUR, excl. VAT

Illustration. The URLs and values are fictional; the connection string is the real grammar.

€2.00
per GB on ARC Fast, excl. VAT: −44%
at 1 TB (€1.12 / GB): 185+
countries, city targeting: Never
expires — no subscription

The problem

What goes wrong without the right IPs

Point of sale changes the price

Fare buckets, taxes and available inventory are set per market. A quote collected from one country is a quote for that country, whatever currency you asked the page to display.

Currency display is not point of sale

Switching the currency selector usually converts the same fare rather than requesting the local one. Only the exit IP moves you into the other market's pricing.

Search is expensive for the operator

Fare search is costly to serve, so it is rate-limited harder than most pages. Concentrating a whole matrix of routes and dates on one address is the fastest way to be throttled.

A search flow is stateful

Search, then results, then a fare detail — often carrying a token between them. If the exit changes mid-flow the session breaks and you collect nothing.

Prices move within the hour

A matrix that takes six hours to collect is not one observation, it is a smear. Parallelism across a pool is what compresses the window enough for the numbers to be comparable.

Setup

Recommended setup

Fare search is stateful, so the sticky session is not optional here — it is the setup.

Plan	Role	Session	Targeting	Price
ARC Fast Rotating residential	Default for fare search Residential exits in the point of sale you are quoting, held long enough for search, results and fare detail to complete on one IP.	Sticky, 10 minutes per search flow	Country + city	€2.00 / GB €1.12 at 1 TB (−44%)
ARC Basic Rotating ISP	For schedules and static content Timetables, route maps and hotel descriptions do not change per market. Collect them on the cheapest pool and spend the residential budget on the fares.	Rotating	Country	€0.75 / GB €0.59 at 1 TB (−21%)
ARC Ultra Premium residential	For the operators that matter most Premium residential for the carriers whose fares your product is judged on. Route those and leave the rest on ARC Fast.	Sticky per search flow	Country + city	€3.50 / GB €2.17 at 1 TB (−38%)

Prices are list prices in EUR, excl. VAT. Volume discounts apply automatically at checkout — full ladder on the pricing page.

Illustration

What a daily fare matrix costs

An illustration with round numbers — your pages, payloads and retry rate will differ. The arithmetic is the real price ladder.

Assumptions

Routes: 300
Departure dates ahead: 60
Points of sale: 5
Cadence: once a day
Weight per search flow: 450 KB
Bandwidth per month: ≈ 21 GB

On ARC Fast

€42.00per month, excl. VAT

21 GB bought in one purchase at €2.00 / GB (list price).

The same 21 GB on ARC Basic: €15.75 at €0.75 / GB. Move down as soon as the cheaper pool holds up.

Sampled rather than exhaustive: this assumes one in sixty route-date-market combinations is refreshed on any given day, which is how most aggregators actually run. Collecting the full matrix daily multiplies the figure accordingly.

Bandwidth never expires, so a bigger single purchase is only ever cheaper per GB. See the ladder.

Works with anything that takes a proxy URL

Playwright
Python requests / httpx
Node.js
Crawlee
Puppeteer
Docker

FAQ

Questions

Something not covered? Write to contact@arcproxies.io.

Get started

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Price monitoring

See the price a shopper in Berlin, Lyon or Chicago sees. ISP bandwidth at our lowest price per GB for HTML checks, residential where a marketplace is strict.

Brand protection

Find counterfeit listings, unauthorised resellers and minimum-advertised-price violations that are only shown to consumer IPs in a given region.

Reviews & changes

Watch reviews, terms, stock and landing pages on a schedule, from the country the page is written for — and catch the change on the run it happens.

Web scraping

A second provider that just works — Scrapy, requests, Crawlee or Playwright, self-serve, no sales call, bandwidth that never expires.