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We know that plans can change in a flash, so choosing a flexible fare with Expedia makes good sense. Simply tick the "No change fee" box directly under the "Flexible change policies" filter. Your low-cost, flexible flight to Backbone Mountain is just a few clicks away.

A variety of airlines fly to destinations in or close to Backbone Mountain. Your trip is only a few clicks away with these carriers:

• American Airlines - 7,799 flights to or near Backbone Mountain each month, including 7,630 flights to Ronald Reagan Washington National Airport (DCA) and 169 to Washington Dulles Intl. Airport (IAD) per month.
• United Airlines - 6,407 flights to or near Backbone Mountain each month, including 5,522 flights to Washington Dulles Intl. Airport (IAD) and 885 to Ronald Reagan Washington National Airport (DCA) per month.
• Delta - 2,059 flights to or near Backbone Mountain each month, including 1,621 flights to Ronald Reagan Washington National Airport (DCA) and 437 to Washington Dulles Intl. Airport (IAD) per month.

One of the easiest ways to get your hands on cheap tickets to Backbone Mountain is to be flexible with your dates. Search for your flights, then click "flexible dates" above the results. It'll reveal the cheapest prices for nearby days. The best price for a flight to Backbone Mountain in the last seven days was CA $572. Booking well ahead of time will generally help you get an even bigger bargain.

You could have purchased a return air ticket to Backbone Mountain from anywhere between CA $572 and CA $572 in the last seven days. For one-way trips leaving from Columbus (CMH), the lowest price during this period was just CA $295.

When it comes to choosing which airport in Backbone Mountain to land at, here are your options:

• Ronald Reagan Washington National Airport (DCA) - 12,174 flights per month.
• Washington Dulles Intl. Airport (IAD) - 6,641 flights per month.

If you're not fixed on what date you jet off to Backbone Mountain, fly out earlier in the week. The most affordable day to take off is usually Tuesday, followed closely by Monday. Saturday is typically the priciest day, with many vacationers preferring to fly on the weekend.

In the last seven days, tickets to Backbone Mountain varied between CA $572 and CA $572. Prices depend on a number of things, particularly the time of departure, carrier, cabin class and how early you make your booking.

The top month to book well-priced flights to Backbone Mountain is February. Remember that in the USA, the most expensive time to secure a seat is during the festive month of December.