Looking for cheap plane tickets? There are three categories of travel websites you might want to check out.

1. Airlines: Some airlines offer fares available only on their websites. Make sure to check out airline websites to find best fares.
Airtran Airways
Alaska Airlines
American Airlines
Continental Airlines
Delta Air Lines
Frontier Airlines
Hawaiian Airlines
JetBlue Airways
Southwest Airlines
Spirit Airlines
United Airlines
US Airways
Virgin America
more airlines
  
2. Fare Aggregators: Aggregators search multiple airlines and redirect you to airlines website for booking. In return, aggregators usually receive commissions when you click on the search result. Some airlines may not participate in aggregator's fare search system.
Bing Travel
Fly.com
Google Flights
Hipmunk
ITA Software
Kayak
Mobissimo
Momondo
  
3. Online Travel Booking Sites: Similar to aggregators but offer booking service. They are like online version of traditional travel agencies. Might be useful when you need hotels and cars in addition to a flight. Some airlines may not participate in their booking system.
Expedia
Orbitz
Hotwire
Priceline
Travelocity
Cheaptickets.com
 


 

 

 

US Average Airfare Changes
 Airfare Price Change (historical data): click here

Cheap Tickets from Airlines: -- editor's pick!
Travel November 14 through February 14, 2012 -- American Airlines
Purchased at least 10 days prior to departure, or within 1 day of making reservations, whichever comes first, but no later than 11:59 p.m. (CT) November 14, 2011. Travel November 14, 2011, through February 14, 2012. Embargo Dates: Not valid for travel November 18-19, 23, 26-28, 2011; December 22, 2011, through January 3, 2012.
Travel November 14 through February 14, 2012 -- Southwest
Purchase by November 14, 2011, 11:59 pm Pacific Time. Travel November 14 through February 14, 2012. Blackout Dates: November 20, November 23, November 26 - November 28, and December 22 - January 3, 2012.
 
Weekend Flights:
This Weekends Travel -- Continental Airlines
Purchase by Friday, November 4 (11:59 p.m. Central Time). Depart Friday (after 7:00 pm) or Saturday -  November 4 or 5. Return Monday or Tuesday, November 7 or 8.
Last minute weekend getaways -- American Airlines
Reservations are required. Tickets booked on AA.com must be purchased within 1 day of making reservations, but no later than 11:59 p.m. (CT) November 4, 2011. Depart 7:00 p.m. or later Friday, November 4, 2011, or anytime Saturday, November 5, 2011, (Friday evening travel may not be available in all markets). Return anytime the following Monday or Tuesday.
Weekends Flights -- US Airways
Purchase tickets by Saturday, November 5, 2011. Depart Saturday, November 5, 2011. Return Tuesday, November 8, 2011.

More Fare Deals to International Destinations:
Canada
Europe
Mexico, Caribbean, Central & South America
Asia & Oceania
Middle East & Africa