Go West for less than $100

Here’s a bundle of affordable airfare deals for peak summer vacations and for those look-ahead winter ski weekends. But act fast as none of today’s bargains have ticket-by dates. See a deal you like? Buy tickets immediately.

• Travel at one-way rates of $79 ($98.70) to Salt Lake City on Continental. This rate, valid Tuesdays or Wednesdays, requires a ten-day or better advance purchase notice. Rates for Monday-Saturday travel start from $109. Don’t worry about blackout dates - there are none! This rate is valid through May 28, 2010.

• Frontier Airlines takes you to San Francisco at $89 each way ($110.20 including all extras) on trips finished on or before Jan. 8. Some blackout dates apply: Nov. 24, 25, 28-30; Dec. 18, 19, 22-24, 27-29, 31; Jan. 2, 3. This special rate requires a two-week or more advance purchase notice. Trips are valid seven days a week, based on sale seat availability.

• One-way trips of $99 ($118.70 with all extras) are valid on trips to Colorado Springs, Colo. with Continental. Just a three-day advance notice is required. Travel seven days a week at this rate and without worry of blackouts. The sale rate is good on trips taken all the way through May 28, 2010.

• Another $99 one-way rate from Continental Airlines is offered to Steamboat Springs-Hayden, Colo. on trips started on or after Dec. 17 through the final day of seasonal flight service, April 5. This rate is valid seven days a week, based on availability. The rate including all taxes, fees is $118.70.

Ready to book tickets? Start at Kayak.com and enter your city pairs. Next, start to fill in your travel dates. You should instantly see a calendar pop-up on the right side of your monitor with the sale prices. If not, try changing your dates or month of travel using the pull-down months shown just above the calendar. If you still don’t see this rate, it is highly likely that the sale has expired.