Korean Air still has Prestige Class airfare deals to Seoul from Los Angeles, San Francisco, Seattle, New York, and Chicago.

Enjoy a bit of business class luxury and comfort while you travel and, as the airline says, “arrive at your destination feeling refreshed!”

Prestige Class airfare on some routes starts as low as $3,440+ r/t for weekday travel (San Francisco features the lowest airfare). Purchase your Prestige Class airline ticket by April 31, 2010. Visit Korean Air for more details.

Find economy airfare deals to Korea with our Where-to-Fly Asia Flight Finder.

Are you ready to visit our neighbors to the North in comfort and style? If so, United Airlines can help.

The carrier has kicked off first class airfare deals from several departure cities in California to destinations across Canada. Find first class deals from Los Angeles to Montreal, San Diego to Toronto, San Francisco to Ottawa, and much more.

First Class airfare on some routes starts as low as $840+ each-way. A 50-day advance purchase (yes, 50-day) is required for travel between July 1 and August 31, 2010. Visit United Airlines for more details, and check out our Travel Deals blog for the latest economy airfare sales and specials.

United Airlines has two options for those who want to travel to Europe this summer in a bit of luxury.

The carrier’s Business Class summer Europe airfare sale features fares as low as $1,085+ each-way to destinations across the Continent, including London, Paris, Rome, Amsterdam, and more. If you want even more room, more perks, and an added level of comfort, United’s First Class summer Europe airfare sale offers fares to London, Rome, Brussels, and more starting on some routes at $1,994+ each-way.

Purchase business class or first class tickets to Europe by May 31 for outbound travel between July 5 and September 5, 2010. First Class deals are good for daily travel, while business class specials are good for Sunday – Thursday travel. Check out United Airlines Business Class Europe Summer Sale and United Airlines First Class Summer Europe Sale for more details.

Visit our Travel Deals Blog for the latest economy airfare deals to Europe.

Spend your summer exploring some of Europe’s most famed cities, including Paris, Prague, and Vienna. Make the trip even better by flying there in the luxury of Lufthansa business class.

Lufthansa is offering business class summer airfare deals to Europe from a range of U.S. departure cities. Business class airfare starts as low as $749+ o/w on some routes.

Time has almost run out on this one. Book your business class airline ticket to Europe today (March 31, 2010). Visit Lufthansa for more details.

OpenSkies is set to launch service between Washington, DC (IAD) to Paris (ORY) on May 3, 2010. You can book business class flights (Biz Seat as they call it) right now for as low as $815+ o/w (based on roundtrip purchase).

Along with the new routes and new airfares, you can earn a free roundtrip business class ticket between Washington, DC and Paris for every five IAD-ORY flights purchased. According to OpenSkies latest email, the offer is good for IAD-ORY segments booked and ticketed on/before April 30, 2010.

Visit OpenSkies for more details, and check out our Travel Deals Blog for the latest economy airfare deals to Europe.

Hawaiian Airlines is encouraging us all to “take a second look at first class.” They’ve kicked off a first class sale to Honolulu and Maui from several Mainland cities including Portland, Los Angeles, San Francisco, and Las Vegas. First class airfare starts as low as $455+ each-way on some routes.

Purchase your first class airline ticket by March 31 for travel between April 13 and June 10, 2010. Visit Hawaiian Airlines for more details, and start planning your first class getaway.

For economy airfare deals to Hawaii, check out our Travel Deals Blog.

Virgin Atlantic’s London Upper Class Sale is still up and running. You can enjoy first class luxury, entertainment options, and additional perks when traveling across the Atlantic.

Find Upper Class airfare deals from a range of U.S. cities including New York, Las Vegas, DC, Los Angeles, Chicago, Miami, and more. Upper Class airfare on some routes (NY and Newark) starts as low as $1,447+ one-way (based on r/t purchase).

Travel dates vary depending on departure city, but most deals are good for flights all the way through March 1, 2011. Visit Virgin Atlantic for more details, and purchase your Upper Class airline ticket by July 24, 2010.

Check out our Travel Deals Blog for the latest economy airfare deals to Europe.

Starting in just a couple of weeks, you’ll be able to experience a bit of added comfort when flying between Los Angeles and Tokyo (Nartita) on Korean Air.

The carrier is introducing a new line of premium seats in first class, business class, and economy starting on March 28, 2010.

Visit Korean Air for more details on the new Kosmo Suites, Prestige Sleeper, and economy seating.

Air France’s business class Europe airfare sale is still going for the rest of the month. If you purchase your business class airline ticket by March 31, 2010 you can save up to 75%* (*When compared to unrestricted full fare Business Class – J fare codes) for travel from June 29 through September 5, 2010.

You can find business class airfare deals to Paris, Prague, Athens, Madrid, Rome and more from a range of U.S. departure cities. Visit Air France for more details, and check out our Travel Deals Blog for the latest economy airfare deals to Europe.

We’ve seen a few business class airfare sales come and go of late, but if you missed them, you can always check out the ongoing Europe business class deals from New York and Atlanta on Delta Air Lines.

Delta breaks things down by advance purchase:

Visit Delta Air Lines for more details, and get the latest news on economy airfare deals from our Travel Deals Blog.