How to Book a Flight for Someone Else: What to Get Right in 2026

The booking form wants a legal name, a date of birth, a gender marker, a Known Traveler Number and a seat preference. You have none of them, because the trip isn’t yours. So you send a message asking. While you wait, the fare moves.

I’m Nir Sabato, co-founder of Catch. A lot of my week goes on conversations with executives and the people who support them, and booking a flight for someone else comes up constantly. No single field here is hard to fill in. The trouble is that the information sits with one person while the booking gets done by another, and the gap between the two is where things break.

What follows is what actually matters when you’re booking a flight for another person: the fields that are expensive to get wrong, the ones you can fix later, who needs to receive what, how payment works when the card isn’t the traveler’s, and the short list of things the airline will only take from the passenger themselves.

How to book a flight for someone else: collect these details first

Booking a flight for someone else usually stalls in the same spot. You’re halfway through the form and you hit the one detail only the traveler has. Get the whole set once, write it down somewhere you’ll find it again, and you stop asking.

• Full legal name, exactly as printed on the ID they will actually carry. Not the name on their email signature. Not the shortened version everyone at work uses.
• Date of birth and the gender marker shown on that ID.
• Known Traveler Number (TSA PreCheck or Global Entry), and a redress number if they have one.
• Frequent flyer numbers for the carriers they fly, and their status on each.
• Seat and cabin preferences. Aisle or window, front or back, extra legroom, and what the company policy allows on which route lengths.
• Meal preference, if they have one that needs requesting.
• Mobile number and email, for the airline’s record rather than yours.
• Which card pays, and whose name is on it.
• Passport details and expiry for anything international, plus any visa or entry authorization already held.

That list is the real deliverable. Almost every hour lost to booking a flight for another person traces back to a line on it that nobody wrote down.

The name has to match the ID, and nothing else

Of all the fields, this is the one where a mistake costs real money.

Under the TSA’s Secure Flight program, US airlines collect each passenger’s full name, date of birth and gender and pass them to TSA for watch list matching before a boarding pass is issued. The requirement is set out in 49 CFR Part 1560. A passenger who doesn’t provide them can be refused transport or refused entry past the checkpoint.

In practice: the name on the ticket needs to match the government ID the traveler will hand over at the checkpoint. A few traps come up again and again.

• Nicknames. “Mike” on a ticket when the license says “Michael” is a correction waiting to happen.
• Middle names. Some IDs print them, some don’t. Book what the ID prints.
• Two surnames, hyphens and spaces. Copy the punctuation exactly, including the parts that look like a typo.
• A name that changed. Marriage, divorce or a legal change only counts once the ID itself has caught up.

If you do get it wrong, there’s a distinction worth knowing. A name correction fixes a misspelling, a reversed first and last name, or a nickname on a ticket that still belongs to the same person. Most US carriers will do it, often at no cost if you catch it early, though some charge a fee and some want a phone call. A name change that puts a different passenger on the ticket isn’t a correction, and it’s generally not available at all: US airline tickets are not transferable to another person. Wrong person’s name on the ticket, and you’re usually buying a new one.

Check the spelling against the ID before you pay, not after. And if the traveler sent their name over in a message, read it back character by character rather than trusting your own retyping.

Known Traveler Number, redress number, and the loyalty account

These three get confused with each other, and they behave differently.

Known Traveler Number

The KTN is what puts the TSA PreCheck marker on the boarding pass. Worth entering at the time of booking, though it’s also the most forgiving field on this list: you can add a KTN to an existing reservation later, through the airline’s site, by phone, or at the counter. If the traveler has already checked in, the airline may need to reverse the check-in for the marker to appear.

One condition matters. The name on the reservation has to match the name on the PreCheck enrollment exactly, middle name included. When PreCheck silently fails to show up, a mismatch between those two records is usually the reason, not a problem with the number.

You also can’t get a KTN on someone’s behalf. Enrollment involves an in-person appointment and the traveler’s own biometrics, so if they don’t have one, that’s a task for them.

Redress number

If a traveler has been repeatedly misidentified at security, the DHS Traveler Redress Inquiry Program issues a redress number. It’s optional, and it belongs in the reservation when it exists. Ask once. Most people don’t have one.

Loyalty account

The frequent flyer number has to be the traveler’s own account. Miles and status credit follow the passenger, not the payer, so there’s no version of this where the company card earns the miles by paying.

Getting the number into the booking is the clean path, but missing credit is recoverable. Most US programs let you claim a flight retroactively, within a window: American AAdvantage and United MileagePlus allow about twelve months, Delta SkyMiles about nine. Hang on to the boarding pass and ticket number until the miles post, because a retroactive claim usually asks for both.

Seat, cabin and meal are part of the job

When you book for yourself, you pick a seat without thinking about it. Booking for someone else, you’re guessing at a preference they’ve held for years and never said out loud.

Ask, then write it down. Most frequent business travelers have a firm answer about aisle versus window, how far forward they want to be, whether they’ll pay for extra legroom on a short flight, and which carriers they avoid. On a long-haul flight the cabin question is a policy question as much as a comfort one, so know what your travel policy authorizes before you offer anything.

Meals have a deadline, and that’s the part people miss. Special meals are requested against the reservation, and airlines need notice: the general standard across carriers is at least 24 hours before departure, and American Airlines asks for requests no later than 20 hours before takeoff and no earlier than 30 days out. A meal request placed the morning of a flight will not make the aircraft. If the traveler has a dietary requirement, handle it at booking rather than parking it in a follow-up task.

Who gets the confirmation, and who gets the 2am rebooking

This is the quiet failure in booking a flight for another person. The booking is perfect and the traveler still finds out about the cancellation from the gate screen.

Airline reservations carry contact details, and those details decide who gets told when something moves. Under 14 CFR 259.8, carriers have to make a status change public within 30 minutes of becoming aware of it, on their website and reservation phone line, for cancellations, diversions and delays of 30 minutes or more within seven days of departure. That obligation is about publishing the information. Whether a human gets a text at 2am depends entirely on whose phone number is sitting in the record.

Split it deliberately:

• Put the traveler’s own mobile number and email in the reservation. They’re the ones standing in an airport when the flight goes.
• Keep yourself on the booking confirmation by adding your address as a secondary contact where the airline allows it, or by forwarding the confirmation the moment it arrives.
• Send the traveler one document, not a thread. Record locator, ticket number, flight times with terminals, the hotel address and phone number, the ground transport details, and who to call when something breaks. One place, rather than eight forwarded emails.
• Keep the record locator somewhere you can reach on a phone. Nearly everything you might need to do with the booking, changing it, checking in, adding the KTN, works from that six-character code.

If the traveler uses a mobile airline app, spend two minutes at booking getting the trip to show up in it. That’s the difference between the traveler being rebooked automatically overnight and the traveler calling you.

Paying with a card that is not the traveler’s

No rule says the passenger has to own the card. Booking a flight for another person on a company card is routine. The verification rules do differ between airlines and hotels, though, and hotels are stricter.

Airlines. For most domestic bookings on a US carrier, a third-party card goes through without comment. Where it gets attention is fraud screening, usually on international itineraries or a last-minute high-value fare. Carriers reserve the right to ask for verification of the card used, and some will want a signed authorization from the cardholder, with a copy of their ID. If the card belongs to a colleague who isn’t traveling, call the airline before ticketing on an expensive international route rather than discovering the problem at check-in.

Hotels. This is where the paperwork lives. If the card paying for the room belongs to someone who won’t be at the desk at check-in, most properties want a credit card authorization form signed in advance by the cardholder. The form names the guest, the dates, the card, and what it may be charged for: room and tax only, or incidentals too. Send it before the stay. Plenty of hotels won’t accept one for a same-day booking, and a traveler who arrives at midnight to be told the card isn’t valid has no good options.

While you’re there, decide what the traveler is allowed to charge to the room. Setting that in the authorization is faster than settling it in a finance thread three weeks later.

Worth being direct about one boundary: this is about getting the booking paid for. Catch books business travel end to end, but it doesn’t handle expense reports, receipt capture or reimbursement today, so whatever your company uses for that still owns the back end.

What the airline still needs from the passenger themselves

Most of booking a flight for someone else can be done entirely without them. A short list can’t.

• Standing at the checkpoint with their own ID. Adults 18 and over have to present acceptable identification, and since 7 May 2025 a non-compliant state license is not acceptable. From 1 February 2026 a traveler who arrives without a REAL ID or another accepted document can pay $45 for TSA ConfirmID, which covers a 10-day travel period and attempts to verify their identity at the checkpoint. It involves additional screening and can take up to 30 minutes, so treat it as a fallback rather than a plan. Check the traveler’s ID situation once, early, and never think about it again.
• International document checks. The passport has to be theirs and in their hand, many destinations want six months of validity beyond the trip, and a visa or entry authorization can only be applied for by the traveler. You can track the expiry dates. You can’t carry the document.
• Accessibility and medical requests. Airlines will take a special assistance request against a reservation, but anything requiring medical clearance or a signed form generally needs the passenger’s own information and consent.
• Decisions made at the gate. Standby, a same-day switch, an upgrade offer, an involuntary reroute during a disruption: these get resolved in front of an agent by whoever is at the airport.
• Enrollment in anything. PreCheck, Global Entry, a loyalty program tier match. All personal, all theirs.

Knowing this list is what separates useful support from support that hands work back. Anything that isn’t on it shouldn’t reach the traveler at all.

A 24-hour check before any flight you booked for someone else

Short, and it catches most of what goes wrong late.

1. Name on the ticket still matches the ID they are carrying.
2. PreCheck marker is showing on the boarding pass, not just the KTN sitting in the record.
3. Seat is the one they asked for, and has not been moved by an aircraft swap.
4. Meal request is confirmed against the reservation.
5. Check-in is done, or the traveler knows they need to do it.
6. Hotel authorization form is with the property, if one was needed.
7. The single itinerary document is in their hands, with a phone number that reaches a human.
8. The traveler’s own mobile number is the one in the airline’s record.

When the assistant already holds these details

Read back over this page and what it comes down to is a list of facts about one person that somebody has to hold, keep current, and apply correctly every time that person flies. The legal name. The KTN. The aisle seat, four rows from the front. The airline they refuse to fly. The card that pays. The hotel that needs the form.

None of that is knowledge work. It is memory work, and it repeats with every trip the same executive takes.

Which is exactly why an assistant should own it. Catch is the AI executive assistant I co-founded, and business travel is one of the things it handles from end to end. You don’t go and search it like a booking site. It reads calendar and email, spots the trigger on its own, the conference ticket sitting in an inbox, the face-to-face meeting in another city, the flight with no hotel booked against it, and comes to you with the trip already worked out. Then it books the flight and the hotel near the actual first meeting rather than merely in the right city, within the company’s travel policy, applying what it has learned about how this particular person travels. Ground transport stays with the traveler.

The details above stop being a collection exercise, because Catch already holds them. Name, seat, cabin, airline, loyalty numbers, hotel chain, room type: it learns them from context and from feedback after each trip, and applies them the next time without being told again.

It also works the last mile, where booking tools stop. It will call the hotel to arrange a late checkout or confirm a room detail, and book the restaurant. On those calls it identifies itself as an AI assistant acting for the executive. And it keeps watching after the booking is made, scanning for a better rate and rebooking when it finds one. The bigger saving arrives earlier than that, though: because Catch spots the trip the moment the trigger appears and booking it takes no effort, the ticket gets bought early, which is where the real money on business travel sits.

You reach it on Slack, email, text message, iMessage or a phone call. Setup runs under three minutes. Pricing is a flat $99 a month, phone calls included, no per-call fees. Catch is SOC 2 Type II certified, CASA Tier 2 verified, and hosts data in the United States.

If you want the wider version of this, booking business travel covers fares, hotel rates and approvals, and what a great executive assistant does for business travel covers the running of the trip rather than the booking of it.

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