A flight comparator queries every major airline and online travel agency at the same time and shows you the results side by side. Instead of opening Kayak, Google Flights, Skyscanner, and each airline website separately, you run one search and the comparator does the legwork. The Valor Flights comparator pulls live availability from over 1,000 carriers and 350+ booking partners, sorted by total trip cost (not just the headline fare).
Search flights now →A real flight comparator does three things at once. First, it sends parallel queries to airline GDS feeds (the same data backbone airlines use), aggregators like Travelport and Sabre, and the public APIs that low-cost carriers expose. Second, it normalises the results so a $480 American Airlines fare with a free checked bag is comparable to a $429 Spirit base fare that adds $35 for a carry-on. Third, it ranks the options by what most travelers actually care about: total out-the-door cost, departure time, layover length, and on-time reliability. The comparator below does all three in under three seconds per search.
A comparator is closer to a metasearch engine like Kayak or Skyscanner than to an online travel agency. The difference: most metasearch tools deep-link out to the airline or OTA to book, taking a referral fee on the way. A pure comparator presents the same view but does not bias the ranking toward partners that pay more. OTAs like Expedia or Booking.com sell the flight themselves, which means they sometimes hide cheaper options that are only bookable on the airline website. The Valor comparator behaves like a transparent metasearch: every result links to the original source for the lowest total cost.
A good comparator surfaces five fields per result: total cost including baggage and seat selection, total trip duration including layovers, the number of stops, the airline (or combination of airlines for codeshares), and an on-time score from the last 90 days of flight data. Anything else (cabin amenities, mileage earning rates, refund rules) is one click deeper. The biggest mistake travelers make on a comparator is sorting only by price; the second-cheapest option is often two hours shorter for under $20 more.
No flight comparator is perfect. The two cases the Valor comparator can miss: (1) award redemptions, which require linking a frequent flyer account that the comparator does not have access to, and (2) hidden-city ticketing, which is against most airline terms of service and not surfaced for that reason. For award bookings, use a dedicated tool like AwardWallet or Point.me. For everything else, the comparator is at parity with or better than the major metasearch engines.
Yes. There is no signup, no subscription, and no charge to compare flights. Valor Flights earns a small referral fee from booking partners when you click out to book, but the comparator results are not influenced by that fee.
Two reasons. Airlines sometimes offer comparator partners a slightly different inventory pool, and OTAs run promotional codes that the airline does not. The comparator always shows the lowest total cost from any source.
Yes, plus most international low-cost carriers (Ryanair, easyJet, Wizz Air, AirAsia, Volaris, etc.). The comparator normalises their unbundled fares so the displayed price includes a carry-on bag and a standard seat.
Live. Every search queries airline feeds in real time. Cached results are never older than 60 seconds.
Updated 2026-05-20 by Valor Flights. Run a free flight search →