It’s no secret that the price of airline tickets continue to be one of the biggest burdens for many would-be world frequent travelers, but there are a number of deal sites that can help ease the sting of rapidly rising plane tickets and help you score flight deals if you know where—and when—to look.

If you have a flexible schedule and are open to discovering a new location that may not be your first pick, keep an eye out on travel deals from these three sites before booking your next vacation.

Airfare Watchdog

There’s a lot to love about bargain flight website Airfare Watchdog. The site aggregates cheap, round-trip travel deals from most cities, providing ideas for unique travel destinations that you may not have initially considered. If you have your heart set on a particular location and travel timeframe, set up an email alert to be notified about increases or decreases in flight prices before buying your ticket.

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Related: Book A Cheaper Fight Instantly 

The Flight Deal

The Flight Deal rounds up bargain flight deals on a daily basis so that you don’t have to spend your time comparing individual airlines and travel aggregators. If you don’t find a flight departing from an airport near you, check back often. Something will turn up for your airport in no time. Many of the deals are for future travel dates, which will give you enough time to request days off from work and plan that spring getaway.

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Secret Flying

Whether you want to travel coast to coast on a whim or are looking for an adventure in Mumbai, Kuala Lumpur or Munich, Secret Flying is home to some unreal travel deals if you visit the site at the right time. International flights can be found for less than $400 every day depending on the departure point, and the Error Fare section of the website gives you a heads up on flight and hotel deals that are too good to pass up.

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Finding the perfect flight deal for your next trip will require patience, but in the end, both your wallet and your passport will thank you.