If you're a frequent Delta flyer, odds are you've got a co-branded Delta credit card in your wallet. While the *delta skymiles gold card* is the most popular choice, two cards with higher fees are worth considering for one big reason: An annual Delta companion certificate.

These certificates alone can be reason enough to keep a top Delta card in your wallet – even after annual fees on these cards went up last year. Think of them as a buy-one, get-one benefit for flights each year: Use them wisely and you can get plenty of value, often outweighing the annual fee. And these certificates are even more powerful now, allowing you and a pal to fly not just within the mainland U.S. but out to Hawaii, down to Mexico, throughout the Caribbean, and beyond.

But they've also gotten much harder to use over the last few years, running searches that turn up blank again and again. So while a BOGO flight once a year sounds nice, what good is this benefit if you can't even use it?

Trust me: It can be done – and we're here to help. Read on for a full rundown and some hints to make sure you use them wisely.

 

 

How Delta Companion Certificates Work

If you can use them, these certificates are some of the best benefits of any Delta credit card.

Exactly what you can get depends on which card you've got. Let's go over some basics:

Keep in mind that you'll only get this perk after your first full year with either of these two Delta credit cards. That means you'll need to wait a year after opening one of these cards – then pay to renew it again – to get a companion ticket.

But both of these companion certificates are far more powerful than they were just a year ago.
 

a delta platinum card and a delta reserve card on a table with a passport, compass and headphones  

While adding a slew of new benefits and raising annual fees last year, Delta expanded which destinations are eligible to use a companion certificate beyond just the continental U.S. The list now also includes flights to Hawaii, Alaska, and even Central America and the Caribbean, too.

There are a few important restrictions you'll want to keep in mind: 

  • You have to actually take and return from the trip before your certificate's expiration date. And remember: These companion tickets are a use-it-or-lose-it benefit.
  • You have to charge the first fare (and the taxes and fees of the second) to an American Express card. It doesn't necessarily need to be your Delta Platinum or Reserve SkyMiles card, but cards from other banks like Visa won't work.
  • You must book roundtrip flights. Even a multi-city reservation – into one city and home from another – will not work, nor will open-jaw flights. You can, however, fly in and out of different airports within the same city using a companion pass – like flying into Newark (EWR) and home from New York City-LaGuardia (LGA).

And most importantly: Only a small subset of flights that Delta sells are actually eligible to use these certificates…

 

Only Select Fares Qualify

While it can still be an incredible benefit, there are some serious strings attached to these Delta companion tickets that can make using them a challenge.

While you may only see first class, Comfort Plus, and economy seats when you walk on a Delta plane, airlines sell an alphabet's worth of different ticket types called fare classes – each with its own rules, restrictions, and price. And only a handful of the two-dozen-plus fares are eligible to use these companion certificates:

  • With the Delta Platinum Card, you can only book fare classes L, U, T, X, and V in the main cabin.
  • On the Delta Reserve Card, you can book all those fares plus fare classes I, Z, and W – first class and Comfort Plus tickets. For certificates issued Feb. 1, 2024 and onward, Premium Select fare classes A and G are also eligible.

 

fare classes for a delta flight from Minneapolis to Las Vegas
Look for the fare class to make sure your ticket qualifies for a free companion.

 

Depending on where you live and when you're flying, these restrictions can make it more difficult to get a lot out of the companion pass. Delta basic economy fares are off-limits, and many of the fares that do qualify are often some of Delta's cheaper tickets.

 

Can You Use a Companion Ticket When Booking with SkyMiles?

No. Sadly.

Delta does not allow travelers to use SkyMiles to book the first ticket when applying a Delta companion certificate. It has to be a normal paid fare – not an award ticket.

The paid fare will earn SkyMiles and credit toward Delta Medallion Status, but the free fare will not

 

But Can You Use Delta eCredits?

Yes! In the last few years, Delta added the ability to apply Delta eCredits to the paid ticket even when redeeming a companion fare.

To do so, just select your companion certificate as normal, then begin your search and select your flights. Once you make it to the checkout screen, select “Use eCredits” and Delta will allow you to pull in credits to offset the cost of your paid fare.

 

a Delta eCredit being applied along with the Companion Certificate.

 

Delta allows you to apply up to four eCredits online during these transactions, though you might be able to use even more at once by calling Delta to book your tickets instead. You can even apply your companion's own eCredits to cover the taxes and fees for that ticket.

 

Can Someone Else Use My Certificate?

Yes … usually.

While a cardholder may always prefer to use the perk that they're paying for, that's not always possible. Fortunately, there's no requirement on these certificates that the cardholder booking the flights is one of the people actually taking the trip.

For instance, a Delta Platinum cardholder could book a flight for their spouse and child using the companion certificate for one of the fares. 

 

What if I Need to Cancel?

If a wholly unused primary ticket or the companion ticket are canceled, your companion certificate should be automatically reissued – with its original expiration date.

 

Tips to Use & Maximize Your Companion Fare

In theory, these certificates are worth their weight in gold. But in practice, redeeming these certificates can feel like a chore.

We've heard from countless frustrated travelers who have tried to find flights to use this perk only to come up empty-handed time and time again. Follow our tips and make it happen. 

 

Select ‘My Dates are Flexible' When Searching on Delta

Delta now offers a price calendar function when you're searching for flights using a companion ticket, allowing travelers to pull up to a month's worth of flights in one quick glance. That change can help you zero in on flights that are eligible for this perk, especially when shifting by just a day or two from an initial search.

Just start the search process by going into your Delta profile and selecting the companion certificate you want to use. As you enter your travel dates, be sure to select the “My dates are flexible” box when starting your search with your Delta companion certificate.

 

Flexible dates search on Delta's website from New York to Miami  

Previously, if you chose dates that weren't eligible to use a Delta companion certificate, your search would show up blank. Here's what you get now instead.
 

available delta companion certificate dates on a calendar. 

With this calendar view, you can now see that returning just a day or two earlier makes these certificates available to use. Better yet, it also highlights the cheapest fares available over that initial one-week span. You can take things even further by selecting “Price Calendar” after you search, pulling up a full month's worth of flights for whatever trip length you set.

 

A Next-Level Tip to Find the Right Fares

There's also a next-level tool that can easily help you zero in on flights that work: It's called ITA Matrix.

Think of it like Google Flights on steroids … and then some. While it's a fairly advanced platform, it has a ton of powerful features that you won't find on Google Flights or other sites. Most importantly, it allows you to search for specific fare classes … including the specific ones you need in order to redeem your certificate. 

Let's say I'm trying to use my companion certificate for a few nights in New York City, but all my searches through Delta are coming up blank. Using some of ITA Matrix's advanced controls, I can tell it to show me exactly when the eligible flights are available.

First, head to ITA Matrix and plug in the basics of your trip. It helps immensely if you're flexible, so I'd recommend selecting “See calendar of lowest fares” rather than inputting exact dates.
 

ita matrix airfare search with calendar of lowest fares selected

 

Now it's time to tell ITA Matrix we only want to see flights that can be booked using your BOGO Delta ticket. ITA Matrix allows you to search only for specific fare classes. Just click “Advanced controls,” and then copy and paste the following bits of code in the outbound and return extension code fields.

  • Platinum cardholders booking economy fares, enter f bc=L|bc=U|bc=T|bc=X|bc=V
  • Got the Reserve Card and want to make sure you're flying first or Delta Comfort Plus? Enter f bc=I|bc=Z|bc=W

In this case, I'm searching only for the main cabin economy fares that can be booked with a Platinum Card companion certificate by telling ITA Matrix to only show fares with the booking codes L, U, T, X, or V.
 

ita matrix airfare search with fare basis codes entered in extension codes boxes

 

It may take up to a minute or so, but eventually, ITA Matrix will pull up a calendar with results. Click airlines and narrow down your results to only show Delta flights.

 

ita matrix calendar of two months with delta air lines selected

 

As you can see from the results below, there are only a select few dates in June and July for which ITA Matrix shows a three-night trip to New York City for two would be bookable with a Delta companion certificate. At almost $350 or even north of $400 per person, Delta flights aren't exactly cheap over this span. But getting two tickets for the price of one would take the sting out of those fares. 

 

results of flights on a two month calendar in ita matrix
 

Click through on one of those dates, ITA Matrix tells me there's an eligible L fare on the June 21 outbound fight and an eligible T fare returning on June 24. The total? $397 for the first passenger and – if this works – nearly free for the second. 

 

ita matrix fares showing delta fare types

 

So from there, I head over to my Delta account, select my companion certificate, enter those dates, and hit search. Sure enough, it did the trick: Those exact same flights are available. Add on some taxes and fees for the companion, and it comes out to a total of $428 and change for two passengers.
 

delta companion certificate applied on flights from minneapolis to new york

 

While you'll still need to be flexible, there's perhaps no better way to cut through the painstaking trial-and-error process of trying to find flights to use your Delta companion ticket than this.

 

Be Flexible & Plan Ahead

The closer you get to departure, the harder it's going to get to find flights that qualify for these companion certificates. If you're searching for a flight just a month or less in advance, your odds of finding something that will work are fairly slim.

We can't tell you exactly how far in advance you need to search, but you'll definitely have better odds by searching at least three to nine months out. In our experience, that's the sweet spot.

 

Pair it with an International Fare Deal

Consider using your Delta companion ticket to lower the costs of an international getaway.

Last year, we sent our Thrifty Traveler Premium members a jaw-dropping deal on flights to Tahiti (PPT): Just $498 roundtrip! That's a fantastic deal, less than half the normal price of flights to paradise.
 

A person sitting on the edge of a pool in Tahiti with a sailboat and mountains in the distance. 

But those cheap nonstop fares were only available from Los Angeles (LAX). If that's not your home airport, the cost of getting yourself and your travel buddy there to make the trek to Tahiti could make the deal look less attractive. Enter the Delta companion certificate.

Using your Delta companion ticket to book positioning flights is a smart move. It means you can book that cheap international ticket from a different city, then use your companion certificate to fly from your hometown to catch that international flight for less.

 

How to Redeem Your BOGO Delta Ticket

Once you've earned a companion certificate, you'll get an email from American Express informing you that the certificate is now available. Log in at Delta.com, and you'll find it's been automatically placed in your Delta profile wallet under “Certificates, eCredits & Vouchers.”
 

delta companion certificate 

Clicking on the certificate in your profile will allow you to begin the booking and redemption process. Unlike the Southwest Companion Pass, there is no need to designate your travel companion ahead of time: You can bring anyone with you.

Once you've found it, follow the tips above to find an eligible flight, make sure your companion certificate applies, and voila – a nearly free plane ticket! You'll pay just the government-imposed taxes and fees in addition to the price of the first fare. The final amount will vary based on your destination.
 

taxes and fees charged on a Delta ticket. 

 

Bottom Line

Delta companion certificates are some of the best benefits on the card_name and the card_name.

Understanding the ins and outs of these companion tickets is critical to coming out ahead. But by booking at least three months in advance, being flexible with your travel dates, and using the right tools to find eligible flights, you can do it.

And as these two-for-one tickets get even more valuable, it's time to learn how to put them to use.