CHICAGO, Nov. 13, 2019 – United Airlines customers now have a new, scientific way to battle jet lag through a first-of-its-kind partnership with Timeshifter®, an app that outlines the best time to see and avoid light, sleep and enjoy caffeine to adjust quickly to a new time zone.

Starting today, all MileagePlus members receive access to a free Timeshifter jet lag plan and Premier 1K members receive a complimentary subscription with unlimited plans. The app is targeted at customers flying across three or more time zones and will be a helpful tool for them to manage their jet lag as they travel across United’s global route network.

Timeshifter was developed by top researchers in sleep and circadian neuroscience and is aimed at customers crossing three or more time zones. The app uses an algorithm to customize plans for customers based on a number of factors including normal sleep pattern, flight details and individual preferences, creating a personalized jet lag alleviation plan. Each plan includes:

• Instructions for when travelers should prioritize exposure to bright light or avoid it.

• A sleep and napping schedule based on his or her own sleep preferences.

• A plan to optimize caffeine intake for alertness and sleep.

• Optional timing for taking melatonin, should travelers choose to do so.

MileagePlus members will receive a free jet lag plan for a flight plan of their choosing in addition to the complimentary trial Timeshifter offers customers for a total of two free flight plans. MileagePlus Premier 1K members will be able to sign up for complimentary annual subscriptions for unlimited access to jet lag plans when they travel. Individual plans for the app retail at $9.99 for a round trip plan and yearly memberships are $24.99.

United’s partnership with Timeshifter is an additional step in improving the travel experience for MileagePlus members. Earlier this year, United announced that MileagePlus miles no longer expire and partnered with CLEAR to provide members with free or deeply discounted memberships to help make travel easier and more predictable.

United flies some of the longest routes in the world, including the two longest flights operated by a U.S. carrier with non-stop service between Houston and Sydney and between San Francisco and Singapore. In December, United will become the only airline to fly direct from North

America to Cape Town, South Africa with the start of brand-new service from New York/Newark. United flies 320 routes to 120 international destinations from the U.S.

Every customer. Every flight. Every day.

In 2019, United is focusing more than ever on its commitment to its customers, looking at every aspect of its business to ensure that the carrier keeps customers' best interests at the heart of its service. In addition to today's announcement, this year United:

• Announced that MileagePlus award miles will never expire

• Gave Economy customers a choice of complimentary snacks on domestic flights

• Made DIRECTV free for every customer on more than 200 aircraft

• Released a new version of the award-winning, most downloaded app in the airline industry

• Launched a new tool called ConnectionSaver, dedicated to improving the experience for customers with connecting flights

• Partnered with CLEAR on free or discounted memberships for MileagePlus members

• Announced PlusPoints, new upgrade benefits for MileagePlus Premier members

• And introduced products in its amenity kits made exclusively for the airline by luxury skincare line Sunday Riley

About United

United’s shared purpose is “Connecting People. Uniting the World.” We are more focused than ever on our commitment to customers through a series of innovations and improvements designed to help build a great experience: Every customer. Every flight. Every day. Together, United and United Express operate approximately 4,900 flights a day to 358 airports across five continents. In 2018, United and United Express operated more than 1.7 million flights carrying more than 158 million customers. United is proud to have the world's most comprehensive route network, including U.S. mainland hubs in Chicago, Denver, Houston, Los Angeles, New York/Newark, San Francisco and Washington, D.C. United operates 788 mainline aircraft and the airline's United Express partners operate 560 regional aircraft. United is a founding member of Star Alliance, which provides service to 195 countries via 26 member airlines. For more information, visit united.com, follow @United on Twitter and Instagram or connect on Facebook. The common stock of United's parent, United Airlines Holdings, Inc., is traded on the Nasdaq under the symbol "UAL".

About Timeshifter

Timeshifter® - The Jet Lag App® - is developed with world-renowned scientists, based on the latest research in sleep and circadian neuroscience. The same technology used by astronauts and elite athletes to perform at their best, is now available to you. With Timeshifter, you can create your own personalized jet lag plans based on your sleep pattern, chronotype, itinerary, and optional preferences such as pre-travel adjustment or the use of melatonin for even faster adaptation. Timeshifter incorporates a real-world Practicality Filter™, ensuring that the advice is realistic and easy to follow; there is also a unique Quick Turnaround™ feature for business travelers who want to be at their best during short business trips that are not long enough to allow full adjustment. An intuitive notification system provides the simple yet powerful advice, even while in-flight.