(2:03 p.m. EDT) -- Alaska cruise season is upon us (May through September), and if you think there's no chance of finding a deal to the Last Frontier, think again. We've rounded up the best Alaska cruise deals on sailings for 2017, so you can not only book the cruise of a lifetime this year, but earn hundreds in onboard credit, get free nights, Wi-Fi packages, even free cruise fare, along the way.
What it is: Save 30 percent on every cruise fare booked, which extends to a variety of Alaska sailings for this year and next. Plus, passengers heading on Oasis-class ships earn up to $300 in spending credit at booking.
Eligible voyages include: Choose from 75 Alaska itineraries, with prices starting from $599 per person for a seven-night cruise on Radiance of the Seas from Seward to Vancouver.
Valid: Until May 24, 2017
What it is: The first two passengers to a cabin on your next Celebrity Alaska cruise can choose two perks from a classic beverage package, prepaid gratuities, an unlimited Wi-Fi package or up to $150 in onboard credit. Third and fourth passengers get a nonalcoholic beverage package and 40-minute internet package, plus up to $150 to spend. Passengers in suites receive all four bonus offers.
Eligible voyages include: A wide selection of sailings departing June 1, 2017 through June 30, 2018. A seven-night Alaska cruise this July starts from $799 per person.
Valid: Through May 31, 2017
What it is: Regent Seven Seas Cruises has two Alaska promotions running for the last week of May. With its Memorial Day sale, you can save either $500 or $1,000 on seven specific sailings aboard Seven Seas Mariner and Navigator, plus get a free three-category upgrade (such as a Concierge Suite for the price of a Deluxe Veranda Suite). Request promotion code "summer." With its Book Now Bonus offer, earn $500 in onboard credit per cabin when you book a 2017 Alaska voyage. The two offers are not combinable.
Eligible voyages include: Cruises ranging in length from one week to two weeks, sailing from Vancouver, Seward or San Francisco on dates throughout summer 2017.
Valid: Through May 31, 2017
What it is: Get prepaid gratuities and up to $500 per cabin when you book select sailings that depart June 2017 through March 2018. Book a suite and receive a $100 internet credit.
Eligible voyages include: Alaska cruises this summer, like a seven-night sailing from Seattle from $799 per person on September 3; or a two-week Denali cruise tour from Fairbanks for $2,099 per person.
Valid: Until June 1, 2017
What it is: As part of Seabourn's Extraordinary Opportunity Event, save on four Alaska sailings with free cabin upgrades (balcony for ocean-view price or a three balcony-category upgrade); $1,000 in onboard credit for penthouse or upper-level suite bookings; $400 in onboard credit per suite; $500 per person in air credits and a 50 percent reduced deposit.
Eligible voyages include: Four different itineraries , ranging from 11 to 14 days, onboard Seabourn Sojourn. Three sailing depart from Vancouver and one from Seward, Alaska. The dates are June 12, June 25, July 21 and September 21. Prices start from $4,499 per person, not including taxes or fees.
Valid: Through June 13, 2017
What it is: When the first two passengers are booked to a cabin, the third and fourth passengers (17 years of age or younger) can sail for free on any Oceania cruise sailing in Alaska this summer. Mention promo KIDSFREE.
Eligible voyages include: Four seven-night Alaska sailings from Seattle over summer 2017.
Valid: Through June 30, 2017
What it is: Lock in 2017 rates for new 2018 itineraries on Alaskan Dream Cruises, plus the solo supplement is waived on select departures.
Eligible voyages include: 2018 sailings in Alaska, including new itineraries like the 10-night "Alaska's Frontier & Wilderness Quest," traversing the Inside Passage.
Valid: Through July 31, 2017
What it is: Cruise to Alaska starting from $799 per person on an eight-night cruise with Carnival.
Eligible voyages include: Seattle departures onboard Carnival Legend or experience a Carnival Journey on a longer 14-night itinerary from Los Angeles (Long Beach) onboard Carnival Miracle or Splendor. Dates are available for this summer and for the 2018 Alaska cruise season.
Valid: Until they're sold.
What it is: Book your Alaska cruise with Norwegian and choose from perks like a free drink package, specialty dining meals, shore excursion credits or 250 minutes of Wi-Fi. Select voyages let you bring a third or fourth passenger in a cabin for free.
Eligible voyages include: Prices start from $699 per person for a seven-night cruise round trip from Seattle ($100 per person, per night) sailing next April or $799 per person for an inside cabin on a weeklong cruise this June, departing from Seward, Alaska. Norwegian Bliss, the newest purpose-built ship for Alaska, debuts in 2018 and sailings are included as part of this promotions.
Valid: This promotion is ongoing.
What it is: Luxury cruise line Crystal Cruises is discounting its Alaska sailings, with prices starting from $2,190 per person for an inclusive weeklong voyage from Vancouver to San Francisco.
Eligible voyages include: About 25 itineraries to Alaska with voyages that include ports like Sitka, Juneau and Glacier Bay as well as the Hawaiian islands. Sail seven to 16 nights, departing May 2017 through July 2018.
Valid: Through August 31, 2017
--By Brittany Chrusciel, Associate Editor