Fly from Detroit to Portland for $157 round-trip, including all taxes, on United.

We found seats leaving Detroit on September 17, and returning from Portland on September 24. Other dates available for travel beginning in late August through March. Valid 7 days a week. No minimum stay.

For booking info, see our Fare Details.

If you're feeling a tad put off by peak season fares to Europe, SAS has a little sale for those willing to wait it out until late summer/fall. Travel is valid on weekdays, from August 14 through October 26. Add an extra $70 for weekend travel.

Other carriers may be matching along some routes. Tickets must be booked by May 28.

Fares include:

Newark to Copenhagen $828 round-trip, nonstop, including all taxes

San Francisco to Copenhagen $909 round-trip, including all taxes

San Francisco to Helsinki $915 round-trip, including all taxes

Chicago to Copenhagen $878 round-trip, including all taxes

For a complete listing, visit our fare pages for Oslo, Stockholm, Copenhagen, and Helsinki.

Copenhagen image via Shutterstock

American Airlines has lowered fares for summer travel to Vail and Jackson Hole. Fares are valid for daily travel from June 12 through August 24.

Fares require a Saturday or minimum 2-night stay.

All purchases must be made by 11:59pm CT, May 27.

Atlanta to Vail $347 round-trip, including all taxes

Detroit to Vail $414 round-trip, including all taxes

Nashville to Vail $416 round-trip, including all taxes

Santa Ana to Jackson Hole $373 round-trip, including all taxes

Baltimore to Jackson Hole $450 round-trip, including all taxes

Chicago to Jackson Hole $456 round-trip, including all taxes

Ft Lauderdale to Jackson Hole $459 round-trip, including all taxes

Pittsburgh to Jackson Hole $445 round-trip, including all taxes

Tampa to Jackson Hole $464 round-trip, including all taxes

West Palm Beach to Grand Junction $466 round-trip, including all taxes

Image via Shutterstock

Fly from Los Angeles to Prague for $614 round-trip, including all taxes, on US Airways.

We found seats departing LAX on November 5, and returning from Prague on November 12. Similar fares available for travel on other dates.

For booking info, see our Fare Details.

Lots of other fares to the Czech Republic from other US cities. See our full list of current deals to Prague PRG.

Fly from New York to Stockholm for $639 round-trip, including all taxes, on Turkish Airlines.

Searching Orbitz, we found seats available for travel in winter, departing New York on February 26, and returning from Stockholm on March 4. Flights connect in Istanbul.

Other dates also available for winter travel.

Fare of the Day: New York, NY (JFK) to Tel Aviv, Israel (TLV) $652 RT, including all taxes on Turkish Airlines. Winter travel.

We found this fare on Turkishairlines.com for travel early next year. Must be flexible with dates.

Fare of the Day: Minneapolis, MN (MSP) to Istanbul, Turkey (IST) $604 RT, including all taxes on Air Canada.

Escape the winter chill of Minnesota. Travel any day of the week if available, we found fares at this price starting in January, February, and March of next year.

Fare of the Day: Newark, NJ (EWR) to Cancun, Mexico (CUN) $272 RT, including all taxes on American Airlines.

Search for this fare on the American Airlines site, we found it available for Fall/Winter travel heading into early next year.

Fare of the Day: San Francisco, CA (SFO) to San Juan, PR (SJU) $267 RT, including all taxes on American Airlines.

Travel Tuesday and Wednesdays starting in September through March of next year.  No peak summer travel available.

Fare of the Day: Detroit, MI (DTW) to Denver, CO (DEN) $198 RT non-stop, including all taxes on Southwest Airlines.

Fare available for travel any day of the week if available, no minimum stay requirement, travel through January 5, 2014.