Find the cheapest flights across a flexible range of dates on eDreams.
A Chrome extension that sweeps every departure/return combination over a date range × nights range, opens each search in a real browser tab, reads the "Cheapest" price straight from the page, and ranks the results in a sortable table — with per-scan history and CSV export.
eDreams has no public API, and its result pages are protected by anti-bot tooling that blocks direct requests. So instead of calling an API, this extension drives a real browser: it navigates actual search tabs one at a time, with randomised delays, and extracts the price the way a person would read it off the screen. Slower than an API, but it works, and it uses your real browser session.
- Flexible date sweep — pick a departure window (e.g. 1–20 Sept) and a nights range (e.g. 5–8), and it generates every valid round-trip combination.
- Reads the real "Cheapest" price — anchored on the page's own Cheapest / Mais barato tab, not a guessed selector, so it survives eDreams redesigns.
- Self-correcting ETA — estimates time remaining from measured per-search timings, not a fixed guess.
- Fast stabilisation — jumps to the next search as soon as the price confirms across a few readings, tunable in Advanced.
- Anti-bot aware — sequential tabs, randomised 8–15 s delays, and automatic pause with a warning if a CAPTCHA is detected.
- Passengers — adults, children, and infants.
- Search history — every completed scan is saved with its results; reopen any past scan.
- CSV export and a sortable results table (price, out, back, nights, airline).
- EN / PT interface with a language switcher.
- Download or clone this repository.
- Open
chrome://extensionsand turn on Developer mode. - Click Load unpacked and select the project folder.
- Click the extension icon to open the side panel.
- Fill in origin, destination, and one date, then click Search.
- If the tab opens the correct results page, you're set.
| File | World | Role |
|---|---|---|
content.js |
ISOLATED | Reads the Cheapest tab from the page, pushes the stabilised price to the panel, detects anti-bot pages. |
sidepanel.js |
Panel | Builds the queue, runs it sequentially with delays, renders results, ETA, history, CSV. |
background.js |
SW | Opens the side panel on icon click. |
The queue runs in the side panel (not the service worker), because MV3 service workers are suspended after ~30 s of inactivity, which would kill a sweep with 8–15 s delays between tabs. Keep the panel open while a scan runs.
- The price is the Prime (discounted) price on routes that have Prime, because that's what the Cheapest tab shows. If you're not a Prime member, checkout will be higher.
- No parallelism. 60–80 combinations take ~12–15 minutes. Sequential scanning is what keeps you from getting blocked.
- If eDreams changes its front end, the URL template or the Cheapest selector
in
content.jsmay need adjusting. - The panel must stay open for the duration of a scan.
This is a personal tool for personal use. It automates a browser to read publicly visible prices; it does not bypass authentication or access private data. Respect eDreams' terms of service. Use at your own risk.
MIT © Lucas Canero