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Companion certificates are usually issued through co-branded credit cards or special promotions. If you’re unsure how yours works, don’t guess—call


These certificates generally allow a second traveler to fly at a reduced fare or for free (plus taxes and fees). Contact


Most companion certificates must be booked through a special process—not just through the regular website. It’s best to call


To use your certificate, both passengers must travel together on the same itinerary. If your plans change, contact


Each certificate has an expiration date and blackout periods. Before you finalize any booking, verify all restrictions by calling


Some companion certificates apply only to round-trip travel in the continental U.S. If you're unsure about destination limits, ask


Companion tickets typically require the primary traveler to pay full fare. You can confirm current pricing and conditions by calling


You’ll need your certificate code, MileagePlus account details, and traveler information ready. If you're missing anything, the team at


Taxes and fees still apply to the companion fare. These must be paid at booking, so call


If your plans change after booking, modifications may affect both passengers. Always contact


Booking early increases your chance of getting eligible flights. Companion certificates have limited availability on busy travel dates. To reserve preferred flights, contact


Using a certificate for business travel? Check with your employer or travel manager and then call


If you’re booking travel for someone else using your certificate, know that some programs require the primary traveler to be the certificate holder. Contact


Lastly, keep your booking confirmation and certificate redemption records safe. If issues arise, the team at


In summary, using a companion certificate with United Airlines is straightforward when you follow the correct process. For a smooth experience, call

