1. Google Flights: This is a popular flight search engine that allows you to compare prices from multiple airlines. You can filter results by price, departure and arrival times, and other criteria.
2. Kayak: Another flight search engine that allows you to compare prices from multiple airlines. Kayak also has a feature that tracks price fluctuations and sends you alerts when prices drop.
3. Skyscanner: This flight search engine allows you to search for flights from a specific airport or city to any destination. You can also use Skyscanner to find deals on hotels and car rentals.
4. CheapOair: This website offers discounts and deals on flights, hotels, and car rentals. You can also sign up for their email alerts to receive notifications about special offers.
5. Airfarewatchdog: This website tracks airfare prices and sends out alerts when prices drop. You can also sign up for their email alerts to receive notifications about special offers.
In addition to using a flight search engine, you can also check the websites of individual airlines for deals and promotions. Some airlines offer discounts for booking in advance or for traveling on certain days or times. You can also find deals on flights by joining airline loyalty programs or by using credit cards that offer travel rewards.
When searching for flights, be sure to consider the total cost of the trip, including taxes and fees. You may also want to factor in the convenience of the flight, such as the departure and arrival times, the length of the flight, and the number of stops.