Gym Access Growing at Airports

Hilton Boston Logan Airport Take sky bridge or shuttle to hotel. Weekdays: 5:30 a.m.-11 p.m. Sat./Sun. 6:30 a.m.-10 p.m. $10 Staffed fitness center, lap pool, whirlpool, lockers with steam rooms and saunas. Disposable swimwear for sale. 617-568-6882

Chicago O'Hare

Hilton Chicago O'Hare Airport Take underground walkway or shuttle to hotel. Weekdays: 4:30 a.m.-11 p.m. Sat./Sun.: 6 a.m.-10p.m. $11 Staffed fitness center, pool, whirlpool, sauna/steam room, massage services. Shorts and T-shirts for sale. 773-601-1723

Detroit Metro

Westin Detroit Metropolitan Airport in the McNamara Terminal Fitness center: Open 24 hours for hotel guests. Pool: 7 a.m.-11 p.m. $15 for two-hour pass between 5 a.m. and 11 p.m. Fitness room, indoor pool, whirlpool, in-room spa and massage services. 734-942-6500

Las Vegas McCarran

24 Hour Fitness Take elevator from above the south baggage claim carousel. Monday: 5 a.m.-midnight. Tuesday-Thursday: Open 24 hours. Friday: 12 a.m.-11 p.m. Saturday: 6 a.m.-9 p.m. Sunday: 10 a.m.-6 p.m. $10; free with some 24 Hour Fitness memberships. Tip: Free trial coupons may be online. Staffed fitness center, sauna/steam room, massage services. 702-261-3971

Vancouver, British Columbia

Fairmont Vancouver Airport Take elevator up from International Departures Terminal. Hours: 6:30 a.m.-9 p.m. daily $15 Canadian for lap pool and fitness center; $10 Canadian for sauna and showers. Staffed fitness center; lap pool, whirlpool, children's wading pool, saunas and massage and spa services. 604-207-5200 or 866-540-4441

Source: Research by Harriet Baskas