How many digits is a Southwest confirmation number?

Please Note: All confirmation numbers consist of a unique six-digit code and do not include the number 0 (zero) or the number 1 (one).



A Southwest Airlines confirmation number (also known as a Record Locator or PNR) is 6 characters long and typically consists of a combination of uppercase letters and numbers (e.g., A1B2C3). These 6 digits are the key to your entire reservation; you use them to check in 24 hours before your flight, change your travel dates, or track flight credits. In 2026, you can easily find this number in the Southwest app under the "Trips" tab or at the top of your confirmation email in bold green font. It is important to remember that this 6-digit code is separate from your 8-digit Rapid Rewards account number. If you have a "Transferable Flight Credit," the confirmation number of the original, cancelled flight is what you must provide to access and use those funds for a new booking.

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How Are the Numerals in Flight Numbers Created? At the most basic level, flight numbers can only be up to 4 digits long. Airlines can choose any number from 1 to 9999. Due to superstition, they avoid using flight numbers 13, 666 and the like.

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How do I find my flight confirmation number? When you receive an email confirming your ticket purchase, it should include your flight confirmation number prominently—often in the subject line as well as near the top of the email itself.

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Confirmation Number. A flight number is not the same as the confirmation number you receive when booking a reservation. A confirmation number is typically an alphanumeric code used to identify your reservation and expedite the check-in process.

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The Booking reference or PNR number or Record locator is the reservation number for the trip being booked via any travel agency and is different from the confirmation code. The confirmation code is required for the passenger to check in on their respective flights.

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Your confirmation code, usually a six-digit string of letters or numbers, is randomly generated and identifies you as a unique passenger. Confirmation codes are needed to change or update a flight.

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Flight code and number There's generally a simple formula for this one: two uppercase letters, followed by a four-digit number. The letters are the airline code, or the numbers universally recognized to represent the name of the airline in shorthand. Some are obvious—AA is American Airlines, for example.

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To locate the confirmation number for any flight credits associated with your Rapid Rewards account, log in to your account, and for desktop, select “My Account” from the menu options at the top of the page or for mobile and the Southwest app, scroll down to “My Travel Funds” at the bottom of the page.

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It depends on your booking. If your booking is for the roundtrip in the same airline (in single booking), then your PNR will be the same for both outbound and inbound flights. If you book your trip with different airlines then you will have 2 different PNRs for each airline.

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Your booking confirmation should include: Booking date and time(s) Booking details. Location (especially if you have multiple) Timing, if early arrival is advised or required.

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You can find answers to what PNR is, how to use it and how to obtain it, on this page. PNR, PNR number, or PNR code is an electronic detail consisting of numbers and letters given after booking a flight. PNR is the abbreviation of “Passenger Name Record” and it is also used as a booking number on the sectoral basis.

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Flight Check-In Online Beginning 24 hours prior to departure, from Southwest.com® or the Southwest® app, select “Check in.” Enter the confirmation number and first and last name of a Passenger on the itinerary, and click “Check in” (for desktop) or “Retrieve reservation” (for the Southwest app or mobile website).

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