10 Insider Tips for Finding Cheap Flights to Europe in 2025

Planning a European adventure but worried about flight costs? You're not alone. Airfare can be one of the biggest expenses when traveling to Europe, but with the right strategies, you can save hundreds—even thousands—of dollars.

1. Book on Tuesday or Wednesday

Airlines typically release their weekly sales on Monday evenings, making Tuesday and Wednesday the best days to snag deals. Our data shows that booking midweek can save you an average of 15-20% compared to weekend bookings.

2. Use the 3-Month Rule

The sweet spot for booking European flights is typically 2-3 months in advance. Booking too early or too late often means paying premium prices. Set up price alerts for your desired routes about 90 days before your travel date.

3. Consider Alternative Airports

Major hubs like London Heathrow or Paris CDG are convenient but expensive. Look into secondary airports like London Stansted, Paris Beauvais, or Milan Bergamo. Budget carriers frequently serve these airports with significantly cheaper fares.

4. Be Flexible with Dates

If you can shift your travel dates by just a few days, you might save 30-50% on airfare. Use flexible date search tools to compare prices across a week or month. Traveling on Tuesdays, Wednesdays, and Saturdays is typically cheaper than weekends.

5. Try Multi-City Bookings

Instead of a round-trip ticket, consider booking into one city and out of another. Flying into Barcelona and out of Rome, for example, might be cheaper than a round-trip to either city—plus you'll see more of Europe!

6. Clear Your Browser Cookies

Airlines use dynamic pricing based on your search history. Browsing in incognito mode or clearing cookies prevents sites from showing inflated prices based on your repeated searches for the same route.

7. Mix and Match Airlines

Don't limit yourself to round-trip tickets from a single airline. Sometimes booking two one-way tickets from different carriers is cheaper. Just be mindful of baggage policies and connection times.

8. Sign Up for Error Fares

Airlines occasionally make pricing mistakes that result in incredibly cheap fares. Follow deal sites and set up alerts to catch these limited-time opportunities. We've seen $300 business class tickets to Europe that usually cost $3,000+.

9. Use Points and Miles Strategically

Credit card points can significantly reduce flight costs. Focus on flexible points programs like Chase Ultimate Rewards or American Express Membership Rewards that transfer to multiple airline partners.

10. Book Positioning Flights Separately

If you live far from a major international airport, consider booking a separate positioning flight to a hub city. Sometimes a Southwest flight to New York plus a budget carrier to Europe costs less than a connecting flight from your home airport.

Bonus Tip: Use FrogSky's Advanced Search

Our platform aggregates deals from multiple airlines and uses AI to predict price drops. Set up personalized alerts and let us do the heavy lifting for you.

Ready to book your European adventure? Start searching for flights now and put these tips into practice. Safe travels!