various airlines that meet your date and departure
Where Kiwi.com really shines is the way in which it mixes and matches airlines in order to find the cheapest price. For example, maybe you want to go to Rome, Italy from Washington, USA. A typical flight search engine will only suggest routes coming from a single airline and its partners. An example search on Expedia shows the cheapest route as $631.20 USD via TAP Portugal.
Although online travel websites are a great way to find cheap travel rates, you will want to checkout the airlines themselves. All airlines have online websites. Many will regularly offer deals and discounts on many of their flights. These deals and discounts are likely to change often, so if you see something that catches your eye, you may want to snatch up the deal real quick before it is gone.
If you have to be at your destination by a particular time, be careful about waiting too close to your departure time before purchasing your ticket. If you do not have your seat reserved a week before you need to be there you run the risk of not being able to get a flight. This is especially true of flights to popular destinations and during peak travel season.
Our detailed how-to guide spells out how to find mistake fares easily on your own. Basically, AirFare Watchdog and Secret Flying are great resources to stalk for finding mistake and sale pricing as they conglomerate slashed ticket rates all in one spot. Another great approach is to search for flights for an entire month using Skyscanner (Tip #3 in this article). This will allow you to easily spot a significantly reduced fare against what's displayed that month, and has twice helped us stumble on error fares ourselves.