# How to Use Flight Comparison Sites: Skyscanner vs Kiwi vs Google Flights
I’ve booked hundreds of flights over the years, and I’m constantly frustrated by generic “comparison site” articles that don’t tell you what these platforms actually do differently. So let me share what I’ve learned through trial, error, and way too much time comparing flight prices.
The truth? No single flight comparison site is perfect. Each one has specific strengths, annoying limitations, and scenarios where it completely destroys the competition. Understanding when to use which platform has personally saved me thousands of dollars.
Let me break down exactly how I use Skyscanner, Kiwi.com, and Google Flights—plus some other platforms most people overlook.
Why Flight Comparison Sites Exist (And Why You Need Them)
Airlines would love for you to book directly on their websites at whatever price they display. Flight comparison sites disrupt this by:
- Aggregating data from 1,000+ airlines simultaneously
- Showing you prices across multiple dates at once
- Revealing cheaper alternative routes you’d never think to search
- Allowing flexible searches (whole month, nearby airports, etc.)
- Tracking prices and alerting you to drops
The catch: No comparison site shows every flight. Airlines sometimes restrict inventory, prices occasionally differ between platforms, and you’ll often be redirected to complete your booking elsewhere.
My approach: I always search on at least 2-3 platforms before booking. Usually Skyscanner, Kiwi.com, and either Google Flights or Trip.com depending on destination.
For route-specific insights and historical pricing data, I also check FlightsInsight.com before booking any international flight—they provide context on whether current prices are actually good deals.
Skyscanner: My Go-To Starting Point
Skyscanner is where I begin nearly every flight search. Not because it’s always cheapest (it’s not), but because it’s the most comprehensive.
What Skyscanner Does Better Than Anyone
1. The “Everywhere” Search
This is genuinely unique. If you’re flexible on destination, you can search “NYC to Everywhere” and Skyscanner shows you the cheapest flights to every possible destination sorted by price.
Real example: I had a free week in October and $500 to spend. I searched “Boston to Everywhere” and found $220 roundtrip to Reykjavik, Iceland. Would never have thought to search for that specifically, but it became an incredible trip.
2. Whole Month Calendar View
Instead of searching specific dates, Skyscanner shows prices for the entire month in a heat map. Green = cheap, red = expensive.
How I use this: I search flexible dates for my general timeframe, then pick the cheapest days to travel. This alone has saved me $50-150 on countless trips.
Example: NYC to LA in June. Weekend flights: $340. Mid-week flights: $187. Same destination, $153 saved by flying Tuesday/Thursday instead of Saturday/Sunday.
3. Multi-City Trip Planning
Skyscanner handles complex multi-city itineraries better than most competitors.
My experience: Planning NYC → Paris → Barcelona → NYC. Skyscanner let me compare:
- Round-trip to each city separately
- Multi-city single booking
- Open-jaw combinations
Found a multi-city booking for $580 vs. $780 for round-trips. Saved $200.
4. Price Alerts That Actually Work
I’ve tested price alerts on multiple platforms. Skyscanner’s are the most reliable—I actually receive timely notifications when prices drop.
My setup: I set alerts 2-3 months before I want to travel, then book when prices hit my target. Works consistently.
Skyscanner’s Limitations (Be Aware)
❌ Redirects for final booking: You’re sent to airline or partner sites, where prices sometimes differ slightly (usually $5-20)
❌ Not always the absolute cheapest: Kiwi.com occasionally beats Skyscanner by finding creative routing
❌ Budget airline coverage varies: Some low-cost carriers don’t share full inventory
When I Use Skyscanner
- ✅ Starting any flight search (comprehensive overview)
- ✅ Flexible date/destination searches
- ✅ Setting up price monitoring
- ✅ Multi-city trip planning
- ✅ Discovering unexpected cheap destinations
My Skyscanner Workflow
- Search with flexible dates (whole month view)
- Identify cheapest travel days
- Compare multiple routing options
- Set price alert if not ready to book
- Verify final price on airline website before booking
Start your flight search on Skyscanner →
Kiwi.com: For When You Want THE Absolute Cheapest Option
Kiwi.com is controversial, aggressive, and frequently finds flights $100-300 cheaper than competitors. Here’s why:
Kiwi’s Secret Weapon: Virtual Interlining
This is what makes Kiwi different from everyone else.
Normal booking sites: Only show flights where airlines have partnerships. If Delta and Ryanair don’t work together, you won’t see combined itineraries using both.
Kiwi’s approach: Combines any airlines into single itineraries, even if those airlines have no relationship. They book you on separate tickets and guarantee connections.
Real savings I’ve captured:
Example 1: NYC to Bali
- Traditional search: $1,180 (direct routing with partner airlines)
- Kiwi.com: $680 (NYC → Istanbul → Bangkok → Bali on three different airlines)
- Saved: $500
Example 2: London to Buenos Aires
- Google Flights: $890
- Kiwi.com: $620 (London → Lisbon → São Paulo → Buenos Aires)
- Saved: $270
The Kiwi Guarantee (Actually Valuable)
If you miss a connection due to delay on a Kiwi booking (even on separate tickets), they:
- Rebook you on the next available flight
- Cover accommodation if you’re stuck overnight
- Provide compensation in some cases
My experience: My Prague → London → NYC flight was delayed. Kiwi automatically rebooked me on a different airline at no cost. Saved me $400+ I would have paid rebooking myself.
Kiwi’s Other Advantages
1. Nomad Multi-City Tool
Planning a trip hitting multiple cities? Kiwi’s “Nomad” feature optimizes routing and finds the cheapest order to visit destinations.
My use case: Wanted to visit Tokyo, Bangkok, Singapore, and Hong Kong. Nomad suggested the optimal route saving $340 vs. my original plan.
2. Transparent Pricing
Kiwi shows total price upfront, including all fees. No surprise charges at checkout (looking at you, budget airlines).
3. Mobile App Excellence
Their app is genuinely good—fast, intuitive, great for booking on the go.
Kiwi’s Drawbacks (Important!)
❌ Separate tickets = risk: If your first flight is significantly delayed, you might miss connections. The guarantee helps, but it’s still stressful.
❌ Complex itineraries: Those super-cheap prices often involve multiple connections and long layovers.
❌ Customer service can be slow: When things go wrong, getting help takes time.
My rule: I use Kiwi for:
- ✅ Trips where I’m flexible on timing
- ✅ Routes where I’m saving $200+
- ✅ Multi-city adventures where connections are part of the fun
I avoid Kiwi for:
- ❌ Time-sensitive travel (important meetings, events)
- ❌ Trips where I can’t afford delays
- ❌ When saving is less than $150 (not worth the complexity)
When Kiwi Destroys the Competition
- ✅ Complex multi-city trips
- ✅ Budget-focused travel
- ✅ Routes to Southeast Asia, Eastern Europe, South America
- ✅ When you’re willing to accept longer travel times for savings
Search creative routes on Kiwi.com →
Google Flights: The Best Interface, Hands Down
Google Flights isn’t a booking platform—it’s a search engine that redirects you to airlines or OTAs. But holy cow, is it well-designed.
What Makes Google Flights Special
1. Price Graph Visualization
Google shows historical pricing for your route with a line graph. You can instantly see:
- Whether current prices are high or low
- Price trends over the past 6-12 months
- Predicted price changes
How I use this: Before booking any flight, I check Google Flights’ price history. If current prices are 20%+ above historical average, I wait. If they’re below average, I book immediately.
Example: Searching NYC to London in June. Google showed current price ($520) was below typical June prices ($680). Booked confidently knowing I got a good deal.
2. Explore Feature
Similar to Skyscanner’s “Everywhere” search but with better visual mapping.
My use case: Had $600 and wanted a warm beach destination from NYC in February. Google’s Explore showed me:
- Cancun: $240
- Aruba: $380
- Barbados: $420
Picked Aruba, had an amazing week.
3. Price Tracking
Set up tracking for specific routes/dates. Google emails you when prices change significantly.
Better than Skyscanner? In my experience, they’re about equal. I use both.
4. Filter Precision
Google Flights has the best filtering options:
- Number of stops
- Layover duration
- Departure/arrival times
- Airlines
- Airports
- Flight duration
- Bags included
Why this matters: I can exclude overnight connections, flights that arrive after 10 PM, or airlines with poor reviews. Super granular control.
Google Flights’ Limitations
❌ Doesn’t show budget airlines consistently: Ryanair, Spirit, Frontier often missing
❌ Not always the cheapest: Kiwi.com frequently finds better deals
❌ Limited to redirects: Can’t book directly through Google
❌ Sometimes misses smaller OTAs: Platforms like Trip.com may have exclusive deals Google doesn’t show
When I Use Google Flights
- ✅ Checking price history before booking
- ✅ Visual destination exploration
- ✅ Understanding if current prices are good
- ✅ Setting up price tracking
- ✅ When I want the cleanest interface
My workflow:
- Check Google Flights for price trends
- Search Skyscanner and Kiwi.com for actual booking
- Compare all three before purchasing
Other Platforms Worth Knowing About
Trip.com – Best for Asia
Trip.com consistently beats everyone for flights to/from/within Asia.
Why? Direct partnerships with Chinese, Japanese, Korean, and Southeast Asian carriers that Western platforms don’t have.
My savings: Flights to Tokyo: $620 on Trip.com vs. $780 on Google Flights. Same flight, $160 saved.
When I use Trip.com:
- Any flight touching Asia
- Booking hotels in Asian countries
- Domestic Asian flights
Search Asian flights on Trip.com →
Omio – Best for European Transport
Omio isn’t just flights—it compares flights, trains, and buses across Europe.
Why this matters: Sometimes trains are faster and cheaper than flying when you factor in airport transfers.
Example: Paris to Amsterdam
- Flight: €65 + 1.5 hours airport time each end = 4.5 hours total
- Train: €35 direct, 3.5 hours city center to city center
Saved $30 and an hour by taking the train. Would never have checked without Omio.
Compare European transport on Omio →
FlightsInsight – Best for Route Research
FlightsInsight.com isn’t a booking platform—it’s a research tool I use before searching elsewhere.
What it provides:
- Historical pricing for specific routes
- Seasonal price trends
- Best times to book specific city pairs
- Destination guides with local tips
My workflow: Before booking international flights, I check FlightsInsight to understand:
- Is this a good price historically?
- What’s the typical price range for this route?
- When do prices usually drop?
Research routes on FlightsInsight →
My Actual Booking Process (Step-by-Step)
Here’s exactly what I do for every flight:
Step 1: Research Phase (2-3 months before travel)
- Check FlightsInsight for historical pricing on my route
- Note average prices and seasonal trends
- Determine my “good deal” threshold
Step 2: Set Up Monitoring (2-3 months out)
- Set price alerts on Skyscanner
- Set alerts on Google Flights
- Check weekly manually
Step 3: Active Search Phase (6-10 weeks before travel)
- Tuesday morning: Search Skyscanner with flexible dates
- Note cheapest options and airlines
- Search same routes on Kiwi.com
- Check Google Flights for price history
- If Asian destination: search Trip.com
- If European: check Omio for train alternatives
Step 4: Decision Time
If price is within 10-15% of historical average → Book
If price is high → Wait and monitor
Step 5: Final Verification
- Find best option across all platforms
- Check airline website directly (sometimes cheaper)
- Clear browser cookies
- Book during early morning hours (6-9 AM)
Step 6: Post-Booking
- Screenshot confirmation immediately
- Set calendar reminders (24 hours, 1 week, 1 day before)
- Continue monitoring price for 24 hours (free cancellation window)
Platform Comparison: At a Glance
| Feature | Skyscanner | Kiwi.com | Google Flights | Trip.com |
|---|---|---|---|---|
| Best For | Comprehensive search | Cheapest prices | Visual interface | Asian routes |
| Unique Feature | “Everywhere” search | Virtual interlining | Price graphs | Asian carrier deals |
| Price Alerts | ✅ Excellent | ✅ Good | ✅ Excellent | ⚠️ Basic |
| Flexibility | ✅ Best | ✅ Excellent | ✅ Good | ⚠️ Limited |
| Budget Airlines | ✅ Most coverage | ✅ Best coverage | ⚠️ Missing many | ✅ Asian budget carriers |
| Booking | Redirects | Direct or redirect | Redirects only | Direct |
| Risk Level | Low | Medium (separate tickets) | Low | Low |
| Customer Service | ⚠️ Via partners | ⚠️ Can be slow | N/A (redirects) | ✅ 24/7 support |
Common Mistakes I See (And Made Myself)
Mistake #1: Using Only One Platform
What I used to do: Only searched Google Flights because it’s pretty.
What I learned: Google Flights misses budget airlines and creative routing. Now I check Skyscanner and Kiwi.com too.
Savings: $100-200 per international flight on average.
Mistake #2: Booking Through Third Parties Without Checking Airline Directly
The issue: Third-party sites sometimes charge booking fees airlines don’t.
My process now:
- Find flight on comparison site
- Note airline and flight number
- Search same flight on airline website
- Book wherever it’s actually cheaper (usually within $10-30)
Mistake #3: Ignoring Nearby Airports
Example: Flying to London, I only searched Heathrow (LHR). Skyscanner showed me Stansted (STN) was $140 cheaper for nearly the same dates.
Now: I always check “all airports” in my searches.
Mistake #4: Not Clearing Cookies
Airlines and booking sites track your searches. I’ve personally seen prices increase $30-50 after multiple searches.
Solution: Search in incognito mode or clear cookies between searches.
Mistake #5: Assuming “Cheapest” = “Best Deal”
That $180 flight with three connections and 18-hour travel time? Not worth it vs. the $240 direct flight.
My rule: Factor in time, convenience, and sanity. Sometimes paying $50 more is absolutely worth it.
Advanced Tips I Actually Use
1. Book One-Ways Separately
Don’t assume round-trip is cheaper. I often book:
- Outbound on Airline A
- Return on Airline B
Example: NYC to LA
- United round-trip: $380
- JetBlue outbound ($140) + Southwest return ($110) = $250
- Saved: $130
2. Use “Throwaway Ticketing” Carefully
Sometimes booking NYC → LA → SF is cheaper than NYC → LA, even if you only want LA.
Legality: Legal but against airline policies. Don’t check bags (they go to final destination) and don’t use frequently on same airline.
When I do this: Rarely, and never with checked bags or on airlines where I have status.
3. Position Flights
Sometimes flying to a nearby city first, then catching a budget airline, is cheaper than direct.
Example:
- NYC → Barcelona direct: $680
- NYC → London ($240) + London → Barcelona on Ryanair ($35) = $275
- Saved: $405
Caveat: Only works if you have time and flexibility.
4. Mix Cabin Classes
Kiwi.com sometimes lets you book economy outbound, business return, cheaper than round-trip business.
My win: NYC → Tokyo economy ($620), Tokyo → NYC business ($1,100) = $1,720 total vs. $3,200 round-trip business. Got luxury on the longer overnight return flight.
Which Platform Should YOU Use?
If you want simplicity and comprehensive search: → Start with Skyscanner
If you want THE absolute cheapest option and accept complexity: → Use Kiwi.com
If you want the best visual interface and price insights: → Use Google Flights
If you’re flying to/from/within Asia: → Use Trip.com
If you’re traveling in Europe: → Check Omio for train alternatives
If you want route-specific research before booking: → Check FlightsInsight first
My Honest Recommendation
Use all of them.
Seriously. Searching takes 10-15 minutes across multiple platforms. For international flights, I’m potentially saving $100-400. That’s like earning $400-1,600 per hour for my search time.
My standard search rotation:
- FlightsInsight (research)
- Skyscanner (comprehensive view)
- Kiwi.com (creative routing)
- Google Flights (price history)
- Trip.com (if Asian destination)
- Airline website (final price verification)
Total time: 15-20 minutes Average savings: $150-300 per international flight
Worth it? Absolutely.
Final Thoughts
No flight comparison site is perfect. Each has strengths and blind spots. The travelers who save the most money are the ones who:
✅ Use multiple platforms ✅ Understand each platform’s strengths ✅ Are flexible with dates and airports ✅ Set up price monitoring instead of constant manual checking ✅ Verify final prices before booking
Most important lesson: Comparison sites are tools, not magic solutions. Use them intelligently, combine their strengths, and you’ll consistently find better deals than 90% of travelers.
For more travel planning resources beyond just flights:
- Destination guides: FlightsInsight Travel Guides
- Travel activities: FlightsInsight Activities
- City-specific tips: FlightsInsight City Guides
Happy booking, and may the algorithms be ever in your favor.
Start your next flight search:
- Skyscanner: Comprehensive Search →
- Kiwi.com: Cheapest Options →
- Trip.com: Asian Routes →
- Omio: European Transport →
- FlightsInsight: Route Research →
✈️
Last updated: May 2026. Platform features and availability subject to change.
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