Best Websites & Apps to Find Cheap Flights in 2025
Finding cheap flights requires the right tools. With airfare prices fluctuating constantly, using flight comparison websites and apps can help you save hundreds of dollars. In this guide, we’ll explore the best websites and apps for finding cheap flights in 2025, including their key features and best use cases.
Best Websites to Find Cheap Flights
These platforms compare airline prices, track discounts, and help you book the cheapest tickets.
1. Google Flights (Best Overall for Price Tracking)
Google Flights is one of the most powerful flight search engines, offering fast results and price tracking features.
Key Features:
✔️ Tracks fare changes and sends alerts.
✔️ "Date Grid" and "Price Graph" show the cheapest days to fly.
✔️ Provides alternate airport suggestions for cheaper fares.
✔️ No hidden fees (directs you to airlines for booking).
🔹 Best For: Travelers who want flexibility and accurate price tracking.
2. Skyscanner (Best for Flexible Travel Dates & Budget Travelers)
Skyscanner compares millions of flights from airlines and travel agencies worldwide.
Key Features:
✔️ "Cheapest Month" search feature finds the best prices for flexible travelers.
✔️ Allows multi-city searches for complex itineraries.
✔️ Includes budget airlines that don’t always appear on Google Flights.
🔹 Best For: Travelers looking for flexible dates and the lowest fares.
3. Kayak (Best for Customizing Searches)
Kayak is a meta-search engine that finds flights, hotels, and rental cars at the lowest prices.
Key Features:
✔️ "Hacker Fares" combine one-way tickets from different airlines for lower prices.
✔️ "Explore" feature helps find the cheapest destinations based on your budget.
✔️ Price alerts notify you when fares drop.
🔹 Best For: Travelers who want customizable search options and multi-airline deals.
4. Momondo (Best for Finding Hidden Deals)
Momondo often finds cheaper fares than other search engines by scanning lesser-known travel agencies.
Key Features:
✔️ Searches both major airlines and small budget carriers.
✔️ Displays a "Flight Insights" tool that helps decide the best time to book.
✔️ No booking fees (redirects to the cheapest source).
🔹 Best For: Travelers looking for undiscovered discounts and budget airlines.
5. Going (Formerly Scott’s Cheap Flights) (Best for International Flight Deals)
Going is a deal-alert service that finds international flight bargains.
Key Features:
✔️ Sends alerts for mistake fares and flash sales.
✔️ Premium membership gives early access to the best deals.
✔️ Focuses on major international routes.
🔹 Best For: Travelers looking for international flight discounts and mistake fares.
6. Kiwi.com (Best for Unique Routes & Budget Airlines)
Kiwi.com helps travelers find unconventional flight routes that major search engines might miss.
Key Features:
✔️ "Nomad" feature finds the cheapest multi-city trip combinations.
✔️ Includes budget airlines and regional carriers.
✔️ "Kiwi Guarantee" offers protection for missed connections.
🔹 Best For: Backpackers and travelers booking multi-city trips or long layovers.
Best Apps to Find Cheap Flights in 2025
For travelers who prefer mobile booking, these apps offer powerful tools to find cheap flights.
1. Hopper (Best for AI-Powered Price Predictions)
Hopper predicts future airfare trends and tells you when to buy.
✔️ AI-powered price predictions help book at the lowest price.
✔️ "Watch This Trip" feature tracks fares and alerts you when they drop.
✔️ Offers discounts on hotels and car rentals.
🔹 Best For: Travelers who want smart recommendations on when to book.
2. Skiplagged (Best for Hidden City Ticketing & Secret Deals)
Skiplagged finds "hidden city" fares—where you book a longer flight but exit at the layover city to save money.
✔️ Finds flights cheaper than direct routes.
✔️ Includes budget airlines and special promo fares.
✔️ Alerts for mistake fares and last-minute deals.
🔹 Best For: Travelers who don’t check bags and are comfortable with unconventional routes.
3. Airfarewatchdog (Best for Flash Sales & Airline Deals)
Airfarewatchdog specializes in finding limited-time flight deals.
✔️ Tracks fares for budget airlines and flash sales.
✔️ Sends email alerts for the cheapest routes.
✔️ Features human-curated deals (not just AI-generated searches).
🔹 Best For: Travelers looking for last-minute flight discounts and promo fares.
4. Expedia (Best for Bundled Travel Deals)
Expedia offers discounted packages when booking flights, hotels, and cars together.
✔️ Discounts on package deals.
✔️ "Expedia Rewards" gives points for future travel.
✔️ Refundable options available for some flights.
🔹 Best For: Travelers looking for flight + hotel bundle savings.
Tips for Finding the Cheapest Flights in 2025
Even with the best websites and apps, you can save more by following these strategies:
1. Use Incognito Mode & Clear Cookies
Airline websites may track your searches and increase prices if they detect repeated interest. Use private browsing mode or clear cookies before searching.
2. Be Flexible with Dates & Airports
- Flying midweek (Tuesday & Wednesday) is usually cheaper than weekends.
- Use Google Flights' “Date Grid” to compare fares across different dates.
- Consider alternative airports near your destination (e.g., Burbank (BUR) instead of LAX).
3. Set Up Price Alerts
- Google Flights, Skyscanner, and Kayak allow you to track fares and receive alerts when prices drop.
- Act fast when you get a low-price notification!
4. Book in Advance (But Not Too Early!)
- The best time to book flights is 1-3 months before domestic travel and 3-6 months before international travel.
- Avoid booking too early (over 6 months) or too late (under 2 weeks) when prices rise.
5. Consider One-Way & Multi-City Bookings
- Sometimes, booking two one-way flights on different airlines is cheaper than a round-trip ticket.
- Kiwi.com and Kayak’s Hacker Fares help combine different airlines for savings.
Final Verdict: Which Website or App Should You Use?
For the best results, use multiple platforms to compare prices before booking.
