Is it cheaper to use a VPN to search for flights?

No. Most current research shows that airline pricing algorithms are based on cookies and demand volume, not the IP location of the user.

When is the absolute cheapest time to fly?

Late January to early March. You will find the lowest fares because demand is at its lowest point of the year.

Should I book through a third-party site to save money?

Avoid it. Booking directly with the airline makes it significantly easier to manage changes, cancellations, or refunds if something goes wrong.

Booking Cheap Flights from the US to Europe

Use Google Flights to track price trends and book at least 3 months in advance. Aim to fly into major hubs like London, Paris, or Dublin, then take a budget airline carrier for the final leg to your specific destination.

Use the 'Explore' tool on Google Flights. Set your departure airport and leave the destination as 'Europe'. View the map to see which city is cheapest on your specific dates rather than locking yourself into a single destination prematurely.
Track prices for 2 weeks. Once you identify your preferred route, toggle the 'Track prices' switch. You will get email alerts when the price drops, allowing you to strike when fares are at their lowest.
Book mid-week. Flights departing on Tuesday or Wednesday are consistently 15-20% cheaper than Friday or Sunday departures. Always compare the cost of two one-way tickets vs. a single round-trip, as foreign carriers sometimes offer better pricing on one-way legs.
Check budget carriers for the final leg. If you need to get to a smaller city, it is often cheaper to book a long-haul flight to a major hub (e.g., London Gatwick or Frankfurt) and buy a separate ticket on a low-cost carrier like Ryanair, EasyJet, or Vueling.

Is it cheaper to use a VPN to search for flights?: No. Most current research shows that airline pricing algorithms are based on cookies and demand volume, not the IP location of the user.
When is the absolute cheapest time to fly?: Late January to early March. You will find the lowest fares because demand is at its lowest point of the year.
Should I book through a third-party site to save money?: Avoid it. Booking directly with the airline makes it significantly easier to manage changes, cancellations, or refunds if something goes wrong.