Update A Reservation

You can manage the following in My Trips:

  • Add or edit seat assignments
  • Add checked bags
  • Upgrade to First Class within 24 hours of your flight
  • Add a Known Traveler #, if you have one
  • Add a Ufly® Rewards #


Online check-in is available within 24 hours of your scheduled departure.

There are some types of reservations that are not eligible for online check-in. Please check-in at the airport if you are:

  • Traveling with infants
  • An Unaccompanied Minor
  • Seated in an exit row
  • Traveling internationally
  • Traveling in a group larger than nine

Please note that Reservations is unable to assist with check-in.

Existing Reservations/Upcoming Trips

You can find answers to many of your questions in the FAQs. You can also make some updates to your reservation online by logging into My Trips. If you have further questions, complete the form below. 

Please note, the following types of reservations do require a call to Reservations:

  • Cancel or modify a reservation
  • Obtain a price quote or make a reservation
  • Make accomodations for an Unaccompanied Minor
  • Add a lap infant to a reservation
  • Add disability services to an existing reservation
    (or complete an accessibility request form).

For these or other changes to existing bookings, contact our Reservations department at 800-359-6786, Monday through Sunday, 5am-Midnight (Central Time).

If your flight is departing within 48 hours, or this is an urgent request, please call Reservations.

If you 're not able to find your answers in the FAQs and you have a question about an existing/upcoming reservation, please complete the form below.

Please note: we cannot provide price quotes, make or change reservations, or take credit card payment via the form.

All communications received by Sun Country are researched and responded to in the order received.
If your concerns are time-sensitive or urgent in nature, or if you have a flight departing within 48 hours, please contact Sun Country Reservations at 1-800-359-6786 or 1-800-924-6184 from outside the US, 5am-Midnight.

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