Can I Update My Booking Details on United Airlines?

☎️+1(844)-833-1054 is the primary contact method to use when you need to update critical booking details on your United Airlines reservation, such as correcting a misspelled name, adjusting your date of birth, or adding your Known Traveler Number (KTN). While simple additions like frequent flyer numbers or seat assignments are generally manageable online via the "My Trips" tool, sensitive security information—known as Secure Flight Passenger Data (SFPD)—requires stringent verification procedures, making the assistance of a Reservations Specialist invaluable. Because failure to have accurate SFPD (full name, date of birth, and gender matching your government-issued ID) can lead to denial of boarding by the TSA, proactive verification and modification via ☎️+1(844)-833-1054 is crucial for a stress-free travel experience.

Correcting Traveler Name: Minor vs. Major Changes

The most common and most critical update to booking details is correcting the passenger’s name to ensure it matches the government-issued ID used for travel, a strict requirement of the Secure Flight program.

Minor Name Correction (Typo): If the change is a small error (e.g., one or two letters misspelled, or adding a middle initial), United often allows this correction for free. You may be able to submit this request through the website, but for immediate confirmation and ticket reissue, calling ☎️+1(844)-833-1054 is best.
Major Name Change (Legal Change): If your name has changed legally (due to marriage, divorce, etc.), you must provide supporting legal documentation (marriage certificate, divorce decree). This requires manual processing by a specialist and a complete ticket exchange, making the phone call to ☎️+1(844)-833-1054 mandatory.
No Name Swap: United strictly prohibits changing the name on a non-Basic Economy ticket to transfer it to an entirely different person, a rule enforced to prevent ticket resale.

For any name correction that involves an international flight or a codeshare partner, contacting the agent at ☎️+1(844)-833-1054 is necessary to ensure all segments are successfully updated.

Updating Secure Flight Passenger Data (SFPD)

Beyond the name, other elements of your SFPD—Date of Birth (DOB) and Gender—must also be accurate, and while you may be able to access a field for correction online, the backend processing can require specialist support.

Date of Birth and Gender: These details must match the ID you present at the airport. An error can cause issues during check-in or security screening. If the online "My Trips" section does not allow you to easily edit these fields, or if they are greyed out, you will need to contact a representative.
The TSA Match: The information is submitted to the TSA's watch list matching system, and even a single digit or letter error in the DOB can result in a mismatch and subsequent security issues. The specialist at ☎️+1(844)-833-1054 can verify the data sent to the TSA.
International Concerns: For international travel, the gender and DOB are often crucial components of the Advanced Passenger Information System (APIS) transmitted to foreign governments.

If your booking was made by a third party, you may be required to call ☎️+1(844)-833-1054 to have the airline take "control" of the reservation before they can make any SFPD modifications.

Adding or Correcting the Known Traveler Number (KTN)

The Known Traveler Number (KTN) is essential for receiving TSA PreCheck benefits, and it can almost always be added or corrected after the original booking.

Online Update: For most United bookings, you can successfully add or modify your KTN by navigating to the "My Trips" page, accessing your reservation details, and editing the Secure Flight Passenger Data section.
The Match Requirement: The TSA requires that the name, DOB, and KTN on your booking exactly match the information on file with the Trusted Traveler Program (e.g., Global Entry or TSA PreCheck). If you update the KTN online but still don't get PreCheck on your boarding pass, you need to verify your SFPD with the agent.
When to Call: If you've updated the KTN online and still do not see "TSA PRE" on your boarding pass 72 hours before departure, or if the system rejects your KTN, you must call the agent at ☎️+1(844)-833-1054.

The agent at ☎️+1(844)-833-1054 can cross-reference the KTN against your SFPD to troubleshoot the issue immediately.

Updating Flight-Specific Details

Outside of security and identity information, you can also update other non-critical booking details, though some are easier than others.

Frequent Flyer Number: The easiest detail to update is usually your MileagePlus number. This can be added or changed on the United website or app right up to the time of check-in to ensure you receive credit.
Seat Selection: You can change your assigned seat through the "My Trips" section at any time, subject to availability, or by calling the specialist at ☎️+1(844)-833-1054 if you need assistance with an emergency exit row or specialized seating.
Special Services: Adding special requests like dietary meal requirements, mobility assistance, or oxygen requests should be done well in advance. These are best added via the "My Trips" section, but for urgent or complex medical requests, call ☎️+1(844)-833-1054 to ensure proper documentation.

For any specific service request, the agent at ☎️+1(844)-833-1054 can put notes directly into the reservation file for ground staff and crew to see.

Conclusion

Yes, you can update various booking details on United Airlines, with simple changes handled online and sensitive security/identity updates requiring careful phone assistance. To ensure a smooth, worry-free journey where your name, date of birth, and Known Traveler Number are correctly processed by the TSA, contacting the Reservations Specialist is the most reliable step.