In general, booking 1 to 3 months in advance is recommended for domestic flights, while booking 2 to 8 months in advance is best for international flights

. Advance booking recommendations:

• Domestic flights For the best prices, aim to book between 21 and 52 days before your trip, with prices typically bottoming out 38 days before departure

. Booking 1 to 3 months in advance is ideal

• International flights Booking around 60 days out is ideal, and no more than four months in advance

. For flights to Europe, the best deals are typically found 129 days out, but could be anywhere from 50 to 179 days before departure

. Start looking at flight prices at least six months out, and try to book three months (or more) before your trip

• Peak seasons For travel during the holidays, over spring break, during peak summer travel periods, or for a popular event, aim to book a bit earlier

. For domestic travel, book 3 to 6 months out, and for international travel, book 4 to 10 months out

. For Thanksgiving flights, start searching around October 1 and look to book around October 14

. For domestic Christmas flights, start searching around October 14, and book by about November 19

Most airlines let you book flights up to 11 months in advance