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Preserve your fare and your peace of mind.
FareLockSM lets you hold your reserved fare and complete the purchase of your itinerary at a later time. Enjoy peace of mind that the price of your itinerary won’t go up and that the flight won’t sell out while you take your time with your purchase. Available only on united.com, FareLock allows you to reserve an itinerary and then complete your purchase later.
Itineraries can be held with FareLock for your choice of either 72 hours or seven days. The price of your itinerary is guaranteed during the hold period, until you decide to complete your purchase.
Using FareLock is easy.
During the booking process on united.com, look for the FareLock logo next to fares when you choose flights. After selecting flights, you can buy FareLock, if available, in the Purchase Options section on the Review Trip Itinerary page.
To purchase an itinerary that’s being held with FareLock, go to Manage Reservations before the hold expires. You may also choose the auto-purchase option, which will automatically complete your purchase at the end of the FareLock hold period. If you decide to cancel your saved itinerary, you may do so through Manage Reservations at any time before the FareLock hold expires.
An email reminder will be sent 24 hours before your FareLock hold ends.

 • FareLock is available for reservations booked through united.com or the United Customer Contact Center. FareLock is available on flights operated by United and United Express® only, and the charge is per reservation.
• FareLock fees are nonrefundable and are not applied toward the price of the ticket.
• Customers can hold a reserved fare with FareLock and then complete the transaction on united.com or with the United Customer Contact Center at any time prior to the end of the FareLock hold period. Reservations that are not ticketed before the FareLock expiration will be canceled, unless the automatic purchase option has been selected.
• FareLock is subject to availability.
• Reservations that are held with FareLock and subsequently ticketed may be changed or refunded in accordance with United’s 24-hour flexible booking policy.

What is the benefit of the FareLock service?
FareLock allows you to hold your itinerary and price for either 72 hours or seven days for a fee. This allows time to finalize your travel plans without worrying about flights selling out or the price of your ticket increasing.
Is FareLock available for award reservations using miles?
Yes. FareLock is offered for both Saver and Standard Award tickets on United- and United Express-operated flights.
Is FareLock offered on every flight?
How can I hold an itinerary using FareLock?
When booking a flight online, you can purchase FareLock, if available, in the Purchase Options section on the Review Trip Itinerary page after you’ve selected flights. 
How can I change my flights after purchasing the FareLock service?
FareLock reservations cannot be changed until after you have purchased the reservation. You may cancel your FareLock hold and choose new flights if your plans change, but you'll need to re-purchase FareLock for the new itinerary. Please note that FareLock may not be offered on your new itinerary. If you have already purchased the ticket, please visit Manage Reservations to change your flight. Normal change fees and fare differences may apply.
What happens if I do not purchase my ticket before my FareLock hold period expires?
If you do not purchase your ticket before your FareLock period expires, your reservation will be canceled unless you have selected the automatic purchase option. If you'd still like to travel, simply return to united.com to create a new reservation.

What is the automatic purchase option?

Customers may choose to have their reservations automatically purchased at the end of the FareLock hold period. If this option is selected, our system will automatically process your ticket purchase with the same credit card used to pay the FareLock service fee. You may choose this service when making your FareLock reservation. If your plans change after the automated purchase, you have an additional 24 hours from the time of ticketing to receive a full ticket refund, based on our
 24-hour flexible booking policy.
What do I do if I no longer want my FareLock reservation?

If your plans change, and you wish to cancel your reservation before the end of the FareLock period, visit Manage Reservations, enter your confirmation number and last name, and select "Cancel Reservation." Please note, the FareLock fee is nonrefundable.