Some travel deals offered this week:

Country Walkers, a Vermont-based tour operator, is waiving its single-supplement fees on select hiking trips. Booking and travel dates vary. For example, a five-night trip to Montana's Glacier National Park departing Aug. 12 costs $3,098 for singles, a savings of $575 over regular rates. Book by Aug. 1. Info: 800-464-9255, www.countrywalkers.com.

Book a 2013 voyage through Europe, Russia or Asia on Viking River Cruises and get discounts on round-trip air. For example, the 15-day Magnificent Mekong cruise from Hanoi to Ho Chi Minh City, with departure dates throughout the year, starts at $4,999 per person double for January through March departures. Round-trip air with transfers, normally $2,495 per person, is $1,497. Book by July 31 using promo code 2013EBD. Info: 800-707-8697, www.vikingrivercruises.com.

With British Airways' London for Free offer, get two free nights in select London hotels when purchasing round-trip air between U.S. gateways, including Seattle, and London. The two free hotel nights are based on double occupancy; single occupants get one night. Book by July 25; travel July 27-Sept. 30 (there are blackout dates). Info: www.ba.com/londoncalling.

Prices were verified Thursday, but deals sell out and availability is not guaranteed. Some restrictions may apply.