What a Delta Companion Certificate Lets You Do
A Delta Companion Certificate is a voucher that lets you bring a second passenger on a Delta flight for a reduced fare—usually between $0 and $175 depending on the ticket price and route. The certificate itself is not a free ticket; it discounts the companion's fare to a set amount while you pay the full price for your own seat. Delta issues these certificates as a benefit to frequent flyers, elite members, and sometimes as a promotional offer to new cardholders.
The certificate covers only the base fare, not taxes and fees. If you're flying a companion on a $400 ticket, the companion might pay $75 instead, but both of you still pay the full taxes and airport fees on top of that. You must purchase your own ticket first at the regular price, then use the certificate to book the companion on the same flight or a connecting itinerary.
Key Takeaways
- A Delta Companion Certificate reduces your travel companion's base fare to a fixed amount (typically $0 to $175), but you pay full price for your own ticket.
- You must book your own seat first at the regular fare, then add the companion using the certificate code on the same reservation.
- The certificate covers only the base fare—taxes, fees, and seat selections are paid in full by both passengers.
- Certificates expire on a specific date printed on the voucher or in your Delta account, and they cannot be transferred to another person.
- Blackout dates and route restrictions vary by certificate type; elite members and credit card holders often have fewer restrictions than promotional certificates.
How to Use Your Certificate When Booking
Start by logging into your Delta account online or opening the Delta app. Search for your flight as you normally would, entering your departure city, destination, date, and number of passengers. Book your own seat first and complete that purchase at the full fare. Do not add the companion to the initial search—you must have a confirmed reservation in your name before you can use the certificate.
After your ticket is issued, return to your reservation and look for an option to add a companion using a certificate code. On the website, this usually appears under "Manage My Booking" or "Add Traveler." You'll enter the certificate code (a long alphanumeric string found in your email confirmation, Delta app, or account dashboard) and the companion's name and date of birth. The system will then show you the reduced fare for the companion on that same flight.
Complete the purchase for the companion's ticket. Both passengers will receive confirmation emails with their separate itineraries. The companion's ticket will show the discounted base fare, and you'll see the certificate code listed as the discount method on the receipt.
Blackout Dates and Route Restrictions
Most Delta Companion Certificates come with blackout dates—periods when you cannot use them. Elite members typically have fewer or no blackout dates, while promotional certificates often block travel during peak holiday periods like Thanksgiving, Christmas, and spring break. The specific blackout dates are printed on your certificate or listed in your Delta account under "My Certificates."
Some certificates also restrict which routes you can fly. A certificate might be valid only on flights within the continental United States, or it might exclude certain premium routes like international flights or transcontinental service. Check the terms before you search for flights; if you try to book a restricted route, the system will not let you explore the certificate to that flight.
If your preferred travel date falls on a blackout date or your route is restricted, you cannot use that certificate for that trip. You'll need to either choose a different date or pay full fare for the companion. Certificates do not roll over to the next year, so if you don't use it before the expiration date, it expires.
Who Gets Companion Certificates and When
Delta issues Companion Certificates to members of its SkyMiles elite program—primarily Diamond, Platinum, and Gold members. The number of certificates you receive per year depends on your elite tier; Diamond members typically receive the most. These certificates are usually issued in January for the calendar year and expire on December 31.
Delta also offers Companion Certificates as a sign-up bonus on its co-branded American Express credit cards. New cardholders often receive one certificate valid for one year from the card's approval date. Some promotional offers during sales events also include a Companion Certificate as an incentive to book.
If you receive a certificate through a credit card offer, the expiration date is usually one year from the date the card was approved, not from the date you received the certificate in the mail. Check your welcome materials or log into your American Express account to confirm the exact expiration date.
Taxes, Fees, and Seat Selection Costs
The Companion Certificate discount applies only to the base airfare. Taxes and government fees—which typically run 15 to 25 percent of the ticket price—are charged in full for both you and your companion. Airport facility charges, security fees, and any fuel surcharges are also paid at full price by both passengers.
Seat selection, baggage fees, and seat upgrades are separate charges. If you want to select specific seats for you and your companion, you'll pay the seat selection fee for each seat (if applicable on that route). If your companion wants to check a bag, they pay the standard baggage fee. These charges are not covered by the certificate and appear as separate line items on the receipt.
If you're flying on a route where seat selection is free (many domestic Delta flights), you can choose seats for both passengers at no extra cost. But if the route charges for seat selection, both of you will be charged the standard fee if you want to pick your seats in advance.
Common Mistakes and How to Avoid Them
The most common mistake is trying to add the companion before booking your own ticket. The system requires your ticket to exist first. If you search for two passengers and try to explore the certificate at that stage, it will not work. Always book yourself first, receive your confirmation, and then add the companion.
Another frequent error is not checking blackout dates before searching for flights. You might find the perfect flight, try to explore the certificate, and discover it's blocked. Save time by reviewing the blackout dates in your account before you start your search.
Some travelers also forget that the certificate is non-transferable. You cannot give it to a friend or family member to use on their own trip. The certificate must be used on a flight where you are also traveling as a passenger. If you don't use it by the expiration date, it's gone—Delta does not extend certificates or convert them to miles.
What Happens If Your Flight Changes or Gets Cancelled
If Delta cancels your flight or makes a significant schedule change, you can rebook both yourself and your companion on a different flight. The Companion Certificate remains valid for the new flight as long as the new flight is within the certificate's restrictions and outside any blackout dates. Contact Delta directly to rebook; the certificate will transfer to your new reservation automatically.
If you need to cancel your trip entirely, the certificate is usually not refunded. Instead, it remains valid until its expiration date and you can use it on a future trip. Some promotional certificates have different cancellation terms, so check your certificate details or contact Delta customer service to confirm the policy for your specific certificate.
Frequently Asked Questions
Can I use a Companion Certificate on a flight where I'm not traveling?
No. You must be a passenger on the same flight as your companion. The certificate is a benefit for you to bring someone else along, not a discount code you can give to another person to use independently.
What if the companion's discounted fare is higher than the certificate's maximum amount?
You pay the difference. If your certificate covers fares up to $175 and the companion's base fare is $220, you pay $220 for the companion's ticket, not $175. The certificate does not cap what you pay; it sets a maximum discount.
Can I use a Companion Certificate on a connecting flight or multi-city trip?
Yes, as long as the entire itinerary is booked as one reservation and both you and your companion are on every flight. If you're flying to three cities with multiple stops, the certificate covers the companion's fare for the entire itinerary, not just one leg.
Do I need to sit next to my companion on the flight?
No. The certificate only discounts the companion's fare; it does not reserve adjacent seats. You and your companion will have separate seat assignments unless you both pay for seat selection and choose seats next to each other.
What if I lose my certificate code or can't find it?
Log into your Delta SkyMiles account and go to "My Certificates" or "My Benefits." Your certificate code will be listed there along with the expiration date and any restrictions. If you received it through an American Express card, you can also contact American Express customer service for the code.