* Pros:
* Comprehensive flight search engine that compares prices from multiple airlines
* User-friendly interface
* Ability to set price alerts
* Flexible search options, including the ability to search by month or by specific dates
* Cons:
* May not always have the cheapest prices
* Limited customer service
Kayak
* Pros:
* Another comprehensive flight search engine that compares prices from multiple airlines
* User-friendly interface
* Ability to set price alerts
* Flexible search options, including the ability to search by month or by specific dates
* Offers a "hacker fare" feature that allows you to combine flights from different airlines to get a cheaper price
* Cons:
* May not always have the cheapest prices
* Limited customer service
Skyscanner
* Pros:
* A flight search engine that specializes in finding cheap flights
* User-friendly interface
* Ability to set price alerts
* Flexible search options, including the ability to search by month or by specific dates
* Offers a "Everywhere" search feature that allows you to search for flights to any destination in the world
* Cons:
* May not always have the cheapest prices
* Limited customer service
Momondo
* Pros:
* A flight search engine that compares prices from multiple airlines
* User-friendly interface
* Ability to set price alerts
* Flexible search options, including the ability to search by month or by specific dates
* Offers a "Best time to fly" feature that shows you the cheapest time to fly to a particular destination
* Cons:
* May not always have the cheapest prices
* Limited customer service
CheapOair
* Pros:
* A flight search engine that specializes in finding cheap flights
* User-friendly interface
* Ability to set price alerts
* Flexible search options, including the ability to search by month or by specific dates
* Offers a "Deals" feature that shows you the best deals on flights to popular destinations
* Cons:
* May not always have the cheapest prices
* Limited customer service