A Southwest Airlines promotion is offering round-trip flights for as little as $100 between some of the carrier's shortest routes.
The promotion, which includes flights from Nov. 30 to Dec. 20 and from Jan. 4 to Feb. 15, offers nonstop one-way flights for as low as $49. Longer and more popular routes are offered for $79, $99 and $129 each way.
Flights on Fridays and Sundays are not included in the sale, and international travel, which ranges from $99 to $239, is valid only on Tuesdays and Wednesdays.
The sale lasts until Oct. 6 at 11:59 p.m. local time in the city of the departing flight.
See more at Southwest.com.