The search continues for any trace of the 777 aircraft that vanished this weekend. Meanwhile, hairline cracks were found in some 787 Dreamliner planes still in production.
Research is under way to find economical ways to heat pavement, but widespread use is still probably five or 10 years away.
Airports in New York, Boston, Chicago and Philadelphia posted the most disruptions. Many carriers eased their policies and fees on changing travel plans.
These carriers are destined for more profits as they expand routes, fill more seats and cash in on in all those extra passenger fees.
The polar vortex might have grounded hundreds of JetBlue flights, but that's not enough to keep shares from taking off.
Low temperatures on their own don't stop air travel. But the conditions they create can stymie airport operations.
Freezing temperatures and storms have hurt nearly every carrier in the last week, but this airline suffered the most.
VIDEO ON MSN MONEY
Copyright © 2014 Microsoft. All rights reserved.
Fundamental company data and historical chart data provided by Morningstar Inc. Real-time index quotes and delayed quotes supplied by Morningstar Inc. Quotes delayed by up to 15 minutes, except where indicated otherwise. Fund summary, fund performance and dividend data provided by Morningstar Inc. Analyst recommendations provided by Zacks Investment Research. StockScouter data provided by Verus Analytics. IPO data provided by Hoover's Inc. Index membership data provided by Morningstar Inc.
Why are stronger numbers considered bad news? Investors are worried about the impact on inflation and interest rates.
The Market Dispatches column has been discontinued. Here's where to find the latest stock and business news on MSN Money, and the latest from market writer Charley Blaine.
MONEY & POLITICS
Breaking up big banks is an untested solution to the too big to fail problem that attempts to isolate and dismantle large, troubled institutions while protecting the rest of the economy.
Six weeks later, most Americans have forgotten about the 2014 tax season -- except those who didn't file by the April 15 deadline.
MUST-SEE ON MSN
- Video: Easy DIY smoked meats at home
A charcuterie master shares his process for cold-smoking meat at home.
- Jetpacks about to go mainstream
- Weird things covered by home insurance
- Bing: 70 percent of adults report 'digital eye strain'