Use Skyscanner when you are flexible on destination (its 'Everywhere' search is genuinely unmatched for open-ended trip planning), when you want to see every possible booking source including smaller OTAs, or when you are comparing budget carriers that Google sometimes under-indexes. Use Google Flights when you know your destination and dates and want fast, accurate results with price history graphs showing whether a fare is high, typical, or low. The optimal strategy for maximum savings is to search both: discover options and destinations on Skyscanner, then verify pricing and set tracking alerts on Google Flights. In our testing, the price difference was usually EUR 0-20, but Skyscanner found fares EUR 15-40 cheaper about 20% of the time, typically from smaller OTAs. Always verify the booking agent's reputation on Trustpilot before purchasing through an unfamiliar OTA — a EUR 15 saving is not worth risking your booking with an unreliable agency.
Skyscanner and Google Flights process over 2 billion flight searches annually and are the two most-used flight comparison tools worldwide. They work fundamentally differently: Skyscanner is a meta-search aggregator querying 1,200+ travel sites including budget OTAs like Kiwi.com and eSky, while Google Flights connects directly to airline GDS systems for near-instant, real-time pricing. In our testing across 100+ European routes, prices matched within EUR 5 about 70% of the time, but Skyscanner found lower fares 20% of the time (typically from smaller OTAs) while Google Flights was cheaper 10% of the time. Here is a detailed breakdown of when to use each tool for maximum savings.
| Provider | Search Speed | Price Accuracy | Flexible Date Search | Route Discovery | Mobile Experience | Booking Options |
|---|---|---|---|---|---|---|
| Skyscanner | ★★★☆☆ | ★★★★☆ | ★★★★★ | ★★★★★ | ★★★★☆ | ★★★★★ |
| Google Flights | ★★★★★ | ★★★★☆ | ★★★★☆ | ★★★☆☆ | ★★★★★ | ★★★☆☆ |
Scores are based on our hands-on testing, user reviews, and price monitoring across multiple European countries.
Use Skyscanner when you are flexible on destination (its 'Everywhere' search is genuinely unmatched for open-ended trip planning), when you want to see every possible booking source including smaller OTAs, or when you are comparing budget carriers that Google sometimes under-indexes. Use Google Flights when you know your destination and dates and want fast, accurate results with price history graphs showing whether a fare is high, typical, or low. The optimal strategy for maximum savings is to search both: discover options and destinations on Skyscanner, then verify pricing and set tracking alerts on Google Flights. In our testing, the price difference was usually EUR 0-20, but Skyscanner found fares EUR 15-40 cheaper about 20% of the time, typically from smaller OTAs. Always verify the booking agent's reputation on Trustpilot before purchasing through an unfamiliar OTA — a EUR 15 saving is not worth risking your booking with an unreliable agency.
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Use both. Skyscanner is better for open-ended discovery (its 'Everywhere' search is unmatched) and checks more OTAs. Google Flights is faster, has better price tracking, and provides a cleaner interface for known routes. The price difference is usually EUR 0-20, but Skyscanner occasionally surfaces deals Google misses.
Skyscanner sometimes surfaces lower prices because it checks more booking sources including smaller OTAs. However, some of these OTAs (Kiwi, eSky) have reputation issues. Google Flights focuses on airlines and major OTAs with more reliable pricing. Always verify the booking source's reputation.
Google Flights has superior price tracking with automatic alerts when fares drop for specific route/date combinations. Skyscanner also offers price alerts but they're less refined. Set up Google Flights alerts after identifying your route and dates on either platform.
Google Flights does not have a true 'anywhere' search like Skyscanner. You must specify a destination. Google does offer an 'Explore' map view showing prices to various destinations, but it is less comprehensive than Skyscanner's 'Everywhere' feature, which ranks every reachable destination from your origin by price. For inspiration-driven trip planning where price determines destination, Skyscanner is the clear winner.
Most major OTAs listed on Skyscanner (Expedia, Trip.com, Booking.com) are reliable. However, Skyscanner also includes smaller agencies like Kiwi.com, eSky, Mytrip, and GotoGate that have mixed reputations — Kiwi.com scores 4.1 on Trustpilot but is notorious for poor customer service during disruptions. Always check the OTA's Trustpilot rating before booking. When the price difference is under EUR 10-15, book directly with the airline for better customer protection and easier changes.
Google Flights' price history data shows that European short-haul flights are cheapest when booked 4-8 weeks in advance. Booking earlier than 3 months rarely saves money, and last-minute fares (under 2 weeks) average 40-60% more than the optimal booking window. Set up Google Flights price tracking alerts 2-3 months before your trip and book when the tool indicates the price is 'low' relative to historical trends for that route. Tuesday and Wednesday flights are typically 15-20% cheaper than weekend departures.
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