Scoring cheap deals on flights is one of the biggest thrills in travel, and one deal alert company is helping make that even easier with a sale offering half-off its service.

Thrifty Traveler, which offers tips and tricks to travelers hoping to score a great deal, is putting its Premium flight deal alert service on sale for 50 percent off, the company shared with Travel + Leisure. The sale, which is valid through 11:59 p.m. ET on June 20, allows new members to sign up for just $49.99 for the first year.

Typically, the service costs $99.99 per year and will renew at that rate.

To take advantage, travelers must use the promo code “FIFTY” at checkout. Thrifty Traveler’s Premium flight deal alert service sends great deals to member’s inboxes, including inexpensive domestic and international fares as well as points deals for both credit card and airline mileage programs. Each deal alert includes instructions on how to book along with links to book directly with an airline, the company told T+L.

“Summer travel season is underway and travel is booming. Now’s the time to save – and trust me, the flight deals are out there,” Thrifty Traveler Founder and CEO Jared Kamrowski told T+L. “Whether you want a cheap fare to New York or Europe or have credit card points and airline miles and dreams of booking a lie-flat seat overseas, we’ve built our Thrifty Traveler Premium flight deal alert service to do the legwork for you, helping you fly more for less.”

Recent deals reviewed by T+L included “unicorn” business class flights to Paris and Amsterdam on Air France and KLM for just 50,000 points each way, down from 100,000. Another deal alerted travelers to cheap flights to Charleston starting at less than $246 on several different airlines. And a third deal alert advertised what the company said was likely a “mistake fare” offering flights to Dublin starting at just $135 (and warning travelers to refrain from making “other nonrefundable bookings for at least 15 days to ensure the airline honors this deal.”).

Beyond these emails, travelers hoping to save on a specific flight can set up price alerts through companies like Google Flights and Skyscanner, getting notified when the price drops.