What an airline companion pass actually is
A companion pass is an airline benefit that lets one designated traveler fly with you for free or for a small fixed price, while you pay the normal fare for your own seat. You buy one ticket. A second person comes along for taxes and fees, or for a flat rate like $99, depending on the program.
The term gets used loosely. In practice it covers two different things. A true companion pass, like the one Southwest offers, lets your companion fly with you over and over for as long as the pass is active. A companion certificate or companion fare is a one time use voucher, usually tied to a credit card, that brings someone along once per year. Both save money. They just work differently, and the difference matters a lot when you decide which to chase. We cover that split in depth on the companion pass vs companion fare page.
How a companion pass saves you money
The math is simple. On a domestic round trip that costs $400, a companion pass can bring your second traveler along for as little as $11.20 in taxes on Southwest, or $99 plus a small tax amount on Alaska. That is roughly $390 saved on a single trip.
Run that across a year of travel and the numbers get large. A couple that flies eight round trips a year on Southwest with an active Companion Pass can save well over $3,000 in fares for the companion, since the pass covers unlimited flights while it is active. That is the reason these passes are some of the most chased rewards in travel.
- You pay full price for your own seat, every time
- Your companion pays only taxes and fees, or a flat fare
- The savings scale with how often you fly
- No award seats or blackout style point juggling for the companion ticket
The three main types of companion pass in 2026
There is no single airline companion pass. There are three meaningfully different products, and each rewards a different kind of traveler. Knowing which camp you fall into is the whole game.
Below is the plain version of how each one works in 2026. We link to deeper pages where the details run long.
Southwest Companion Pass: the gold standard
The Southwest Companion Pass is the most generous benefit of its kind. Once you earn it, your one designated companion flies with you on every Southwest flight for only the taxes, which start at $5.60 per one way segment. There is no per trip fee and no limit on the number of flights. You can use it as many times as you want while the pass is active.
To earn it in 2026 you need to collect 135,000 qualifying points in a calendar year, or fly 100 qualifying one way flights. The pass is then valid for the rest of the year you earn it plus the entire following calendar year, which is why timing your earning matters so much. You can change your designated companion up to three times per calendar year. As of January 27, 2026, Southwest moved to assigned seating, and companions now book into the same fare class and get the same seating and checked bag benefits as the primary traveler. Because the points can come from flights and from Southwest credit card spending, many people earn it without flying 100 times. See the full Southwest Companion Pass breakdown for the earning strategy.
Alaska Companion Fare: the credit card workhorse
Alaska, now operating its loyalty program as Atmos Rewards, offers a companion fare rather than an unlimited pass. With the Atmos Rewards Ascent Visa Signature card you receive a $99 companion fare certificate each year. It lets one companion fly on the same itinerary as you for $99 plus taxes and fees, which usually run about $22 to $50 round trip.
Starting in 2026 the certificate posts after you spend $6,000 in purchases during your card anniversary year, then it lands automatically. It is good once per year on flights operated by Alaska and Hawaiian within North America, and both travelers must be on the same booking paid with your card. It is not unlimited, but for a couple that takes one or two Alaska trips a year, a guaranteed cheap companion seat with a fixed annual cost is a strong, low effort deal.
Delta and other card companion certificates
Delta runs a card based companion certificate that arrives once a year when you renew an eligible SkyMiles American Express card. The Platinum Delta SkyMiles card issues a certificate good in Main Cabin, while the Delta Reserve card issues one that can be used in Delta First, Premium Select, Comfort+, or Main Cabin. Your companion pays only the government taxes and fees, which can range from about $22 to $250 round trip depending on the route.
These certificates are valid on round trip flights within the domestic United States, the Caribbean, or Central America, and both travelers must be booked together on the same flights in the same cabin. The certificate expires one year from issue, and travel must be flown by that date. Other airlines and cards offer similar once a year certificates, so the pattern is common: pay the annual fee, get one companion trip back, and the value usually exceeds the fee if you take even one qualifying trip.
Who benefits most from a companion pass
The honest answer is that a companion pass pays off when you travel with the same person more than once a year on an airline you already use. A couple based near a Southwest, Alaska, or Delta hub is the textbook case. So is a parent who flies a few times a year with a child old enough to need a paid seat.
If you fly rarely, or you bounce between many airlines for the cheapest fare, a pass tied to one carrier may not pay back its effort or annual fee. The break even point is usually one or two round trips a year for a card based certificate, and just a handful of flights for an unlimited pass like Southwest's. We walk through whether the numbers work for your situation on the is a companion pass worth it page.
- Couples who fly together on the same airline
- Families with a child who needs a full priced seat
- Anyone loyal to one carrier with a hub nearby
- Travelers willing to put planned spending on a co branded card
How to choose and earn the right one
Start with the airline you fly most and where you live. The best companion pass is the one on the carrier you would book anyway, because the savings only count when you actually use it. If Southwest serves your routes, the unlimited Companion Pass is usually the highest value target. If you fly Alaska or Delta, the annual card certificate is the simpler path and asks far less of you.
From there, decide how much work you want to do. Unlimited passes like Southwest's require hitting a points or flights threshold, often by combining a credit card sign up bonus with everyday spending. Card certificates require only that you hold the card, spend any required amount, and pay the annual fee. If you want the fastest route to a valuable pass, including how to stack bonuses and time your earning across a calendar year, read how to earn a companion pass fast.
Questions, answered
Is an airline companion pass actually free for the companion?+
Not entirely. The companion still pays government taxes and fees, which can be as low as $5.60 per segment on Southwest. Card based fares like Alaska's also add a flat charge, such as $99, on top of taxes. The base fare is what you avoid paying.
What is the difference between a companion pass and a companion fare?+
A companion pass, like Southwest's, lets your companion fly with you an unlimited number of times while the pass is active. A companion fare or certificate is a one time use voucher, usually from a credit card, good for a single round trip per year. See our companion pass vs companion fare page for a full comparison.
How long does the Southwest Companion Pass last?+
Once you earn it, the Southwest Companion Pass is valid for the rest of the year you earned it plus the entire following calendar year. That is why people try to earn it early in a year, to stretch the benefit across nearly two full years.
Do I need to be a frequent flyer to get a companion pass?+
No. Card based certificates from Alaska and Delta come with holding the card and meeting a spending requirement, not with flying often. Even Southwest's pass can be earned largely through credit card points rather than flights, so you do not have to fly 100 times to qualify.
Can I change who my companion is?+
On Southwest you can change your designated companion up to three times per calendar year. Card based certificates from Alaska and Delta do not lock you to one person, since you simply book a companion onto a single trip each time you use the certificate.