Flight comparison · real-time prices
Cheap flights, found fast.
Aerlyn scans hundreds of airlines and booking partners in real time — low-cost, full-service, and everything in between — so you always see the cheapest fare available for your trip.
How Aerlyn finds cheap flights
- Step 1
Enter your route
From and to, dates, number of passengers. One-way or round-trip — no account needed.
- Step 2
We scan in real time
Our engine hits hundreds of price sources simultaneously and collects the live fare for every flight combination on your route.
- Step 3
You pick and book
Results ranked by price (or duration, or value). One click takes you straight to checkout with the fare locked in.
Popular cheap flight routes
The most-searched routes on Aerlyn right now.
- Paris → DakarPAR · DSS
- Paris → AbidjanPAR · ABJ
- Paris → MarrakechPAR · RAK
- Paris → CasablancaPAR · CMN
- Paris → TunisPAR · TUN
- Paris → New YorkPAR · NYC
- Paris → MontrealPAR · YUL
- Paris → TokyoPAR · TYO
- Paris → BangkokPAR · BKK
- Paris → DubaiPAR · DXB
- Paris → BarcelonaPAR · BCN
- Paris → RomePAR · ROM
- Paris → LisbonPAR · LIS
- Paris → AthensPAR · ATH
- Paris → IstanbulPAR · IST
- London → New YorkLON · NYC
5 tips for finding cheap flights
Book 4–8 weeks ahead
The sweet spot for most routes. Earlier and inventory is full-price; later and cheap seats have gone.
Fly mid-week
Tuesday and Wednesday departures are consistently cheaper than Friday evenings or Sunday returns on most routes.
Compare with a stopover
A single connection can halve the fare on long-haul routes. Aerlyn shows direct and connecting options side by side so you can decide.
Set a price alert
If you're flexible on timing, let Aerlyn watch the route. We email you the instant a fare drops to your target.
Check alternate airports
Paris CDG and Orly, London Heathrow and Stansted — secondary airports often carry cheaper fares. We search them all automatically.
Ready to find your cheap flight?
No account needed · no service fees · results in seconds.
Compare flights now