When it comes to flying these days, flexibility is important. That’s why we have a “No change fee” filter to help you track down cheap, flexible airfares to Southern Arizona. It’s to the left of your screen directly underneath the “Flexible change policies” heading.

Whether you’re exploring someplace new or revisiting your favorite vacation spot, these airlines are waiting to take you into or near Southern Arizona:

• American Airlines - 5,999 flights to or near Southern Arizona each month, including 5,591 flights to Sky Harbor Intl. Airport (PHX) and 407 flights to Tucson Intl. Airport (TUS) per month.
• Southwest Airlines - 4,155 flights to or near Southern Arizona each month, including 3,991 flights to Sky Harbor Intl. Airport (PHX) and 164 flights to Tucson Intl. Airport (TUS) per month.
• Delta Air Lines - 1,243 flights to or near Southern Arizona each month, including 970 flights to Sky Harbor Intl. Airport (PHX) and 273 flights to Tucson Intl. Airport (TUS) per month.

Book well in advance, travel on a cheaper day, use miles or points — there are loads of ways! One more is to make the most of Expedia’s “flexible dates” function. Search for a Southern Arizona flight, then check out the prices for nearby dates. In the last seven days, the lowest price for a flight to Southern Arizona was NT$23,994.

In the last seven days, round-trip airfares to Southern Arizona sold from just NT$23,994 and reached a maximum of NT$23,994. For one-way fares departing from Taipei (TPE), the lowest price during this time was NT$17,781.

Once you’ve decided where you’re going first in Southern Arizona, choose from these well-known airports:

• Sky Harbor Intl. Airport (PHX) - 12,886 flights per month.
• Tucson Intl. Airport (TUS) - 1,100 flights per month.

If you’d rather spend your money on having fun in Southern Arizona rather than on your trip there, take off early in the week. The cheapest day to fly is usually Tuesday, with Monday running a close second. With many folks keeping their travel to weekends, Saturday often has the most expensive fares.

Plane tickets to Southern Arizona ranged from NT$23,994 to NT$23,994 in the last seven days. Usually, the quicker you book the better the price.

The most affordable month to snare a great deal to Southern Arizona is February, while prices are at a premium in December. Try to avoid this month if you’re on a tight budget.