Google Flights vs Skyscanner vs Kayak: Best for One-Way?

If you’re searching for one-way flights, Google Flights, Skyscanner, and Kayak all work differently — and none of them is the clear winner across the board. Here’s how each one handles one-way searches, where they fall short, and which to use when.

Quick verdict

• Google Flights — Best for research and exploring options. Weakest on budget carrier coverage.
• Skyscanner — Best for finding the absolute lowest price. Searches the most sources.
• Kayak — Best for price alerts and flexible date comparisons. Solid middle ground.

For one-way flights specifically, Skyscanner wins on price, Google Flights wins on UX, and Kayak wins on alerts.

How each handles one-way searches

Google Flights

Google Flights has the best interface for exploring one-way options. The Explore map lets you type your departure city, select “one-way,” and see prices to every destination on a world map. It’s the fastest way to answer “where can I fly for cheap?”

What it does well for one-way:

• Explore map shows one-way prices visually
• Price graph shows cheapest dates across months
• “Track prices” sends alerts when one-way fares drop
• Clean, fast UI — no ads, no upsells

Where it falls short:

• Doesn’t include many budget carriers (no Ryanair, limited Spirit/Frontier results)
• Doesn’t search third-party booking sites — only direct airline fares
• No “cheapest month” view for one-way (only round-trip gets this)
• Can’t search to “Everywhere” — you need a specific destination

Skyscanner

Skyscanner is the most comprehensive for one-way searches. Its “Everywhere” feature is perfect for flexible travelers — enter your departure airport, select one-way, set your destination to “Everywhere,” and it ranks every possible destination by price.

What it does well for one-way:

• “Everywhere” search — the best feature for open-ended one-way searching
• Searches budget airlines, OTAs, and booking sites Google ignores
• “Cheapest month” view works for one-way searches
• Includes Kiwi.com results (which combines airlines for cheaper routes)

Where it falls short:

• UI is cluttered compared to Google Flights — lots of ads and redirect links
• Prices shown aren’t always available when you click through
• Some results go to sketchy third-party booking sites
• Slower to load, especially on mobile

Kayak

Kayak sits between Google Flights and Skyscanner. Its flexible date search and price alerts are its strongest features for one-way flyers.

What it does well for one-way:

• Flexible date grid shows one-way prices across a full month
• “Explore” map similar to Google Flights, includes more carriers
• Price alerts are reliable and well-timed
• Hacker fares — suggests mixing airlines for cheaper combos
• Price forecast tells you whether to buy now or wait

Where it falls short:

• No “Everywhere” destination search like Skyscanner
• Hacker fares only work for round-trips, not one-way
• More ads and sponsored results than Google Flights
• Owned by Booking Holdings — results can be biased toward their brands

Price comparison: same routes, different results

To see how they actually compare, here’s what each found for the same one-way searches:

NYC to Barcelona, one-way, flexible dates

Winner: Skyscanner — Found the cheapest fare by searching more booking sources.

Chicago to Las Vegas, one-way

Winner: Skyscanner — Frontier fare through Kiwi.com that others missed.

LA to Bangkok, one-way

Winner: Skyscanner — Same airline, lower price through a third-party booking site.

The pattern: Skyscanner consistently finds lower one-way prices because it searches more sources. Google Flights is usually $20-50 more but sends you directly to the airline.

Budget airline coverage

This is the biggest differentiator for one-way flyers. Budget carriers price one-way independently (no round-trip penalty), but not every search engine shows them.

Google Flights misses the airlines most likely to have the cheapest one-way fares. That’s a dealbreaker if price is your priority.

UX comparison

Speed: Google Flights is the fastest. Results load instantly. Skyscanner takes 5-10 seconds. Kayak is somewhere in between.

Mobile: Google Flights is best on mobile — clean, responsive, no ads. Skyscanner’s mobile app is solid but cluttered. Kayak’s app is good but pushes hotel and car bundling.

Filters: All three have similar filters (stops, airlines, times, bags). Google Flights has the best price calendar. Kayak has the best flexible date grid. Skyscanner has the best destination flexibility.

Ads: Google Flights shows zero ads. Kayak and Skyscanner both show sponsored results and upsells.

Which should you use?

Use Google Flights when:

• You want to explore where to go (Explore map)
• You want to track a specific route for price drops
• You prefer booking directly with the airline

Use Skyscanner when:

• You want the absolute lowest price and don’t care about the booking source
• You’re flexible on destination (“Everywhere” search)
• You’re looking at budget carriers

Use Kayak when:

• You want reliable price alerts
• You’re comparing flexible dates across a month
• You want a price forecast (buy now vs. wait)

Or skip the comparison entirely. We monitor all these sources plus airline-direct deals and flag the best one-way prices automatically. Check today’s deals → or get alerts when fares drop →.

The real answer

No single search engine catches everything. The best approach is to check Skyscanner for the lowest price, verify on Google Flights for direct booking options, and set a Kayak alert if you’re not ready to buy yet.

Or let us do it — SkipFare aggregates deals across sources and only surfaces one-way flights worth booking. Browse current one-way deals →