How do I choose an airline as a plus-size traveler?

Compare by the planning number: the narrowest published economy seat width, shown for every airline on SeatRuler's comparison table with sources. When prices match, prefer the wider planning number and kinder second-seat refund terms.

Should I buy a second seat for my first flight?

If the armrest test is likely to be close, price the second seat at booking time. Several airlines refund it under conditions, and buying ahead is calmer and often cheaper than resolving it at the gate. Each airline's policy is on its SeatRuler page, sourced and dated.

How do I ask for a seatbelt extender?

Ask a flight attendant as you board: 'Could I get a seatbelt extender?' It is a routine request with no form or fee, and crews handle it daily. SeatRuler's extender guide covers asking discreetly and which airlines have exit-row restrictions.

A printable one-page card from each airline's SeatRuler page: the airline's own second-seat policy, dated and sourced, with a QR code to the airline's policy page and space for your booking details, made to hand calmly to an agent.

Your first flight as a plus-size traveler

The anxious part of a first flight is almost never the flight. It's the not knowing: will I fit, will someone make it a scene, what happens if. This page replaces the not-knowing with a plan, step by step, from booking to baggage claim.

Step 1: Pick the airline with the numbers, not the vibes

Start at the comparison table. It sorts every airline we track by seat width, seatbelt length, and second-seat policy, with the narrowest published figure first. That smallest number is the one to plan around: surprises then run in your favor. When two airlines price the same, the one with the wider planning number and the kinder refund terms is the better ticket.

If you want this to be personal rather than abstract, set up My Numbers first. Enter your measurements once, privately, on your own phone, and every airline page will quietly compare its figures against yours.

Step 2: Read your airline's page before you pay

Open your airline's page from the index and read two sections: the seat width table, which tells you which aircraft on your route have the friendliest seats, and the second-seat policy, which tells you what the airline expects if one seat is going to be close. Every figure there links to its source, so you are reading the airline's own rules, not a forum rumor.

If the armrest test is likely to be close for you, read Second-seat policies, explained before booking. On several airlines, buying the second seat up front is refundable under conditions, and booking it at purchase time is dramatically calmer and often cheaper than sorting it out at the airport.

Step 3: Book with intent

Pick your seat deliberately. Aisle seats give you somewhere for an elbow and an easier exit; the armrest side matters less than knowing it's yours. Avoid exit rows if you expect to use a seatbelt extender, because several airlines bar the combination (the extender guide lists which).
Traveling with someone? Book adjacent seats in the same reservation. An empty middle seat is never guaranteed, but a known neighbor beats a stranger for armrest diplomacy.
Phone-only policies exist. Some airlines only sell extra seats by phone. Your airline's page says so if it applies; the agents handle these calls every day.

Step 4: Before you leave for the airport

Print or save your airline's gate card: it's linked from the second-seat section of every airline page, and it puts the airline's own policy, dated and sourced, plus your booking details on one page. You will probably never need it. Carrying it changes how conversations go anyway, because you stop being someone hoping for kindness and become someone holding the airline's own words.

Step 5: At the airport

If you bought a second seat, check in at the counter rather than the kiosk and confirm the seats are adjacent. If you didn't, and you're now worried, the gate agent is the right person and earlier is better: a quiet word at the start of boarding gives them options a full cabin doesn't. This is exactly the moment the gate card is for.

Step 6: Boarding and the seatbelt

Ask for the extender as you board, at the aircraft door or your row. Six words work, the crew does this every day, and the full script (including how to ask without saying anything out loud) is in the extender guide. Lift the armrest while you settle in if it helps; lower it once you're seated if you can, since the armrest test is the airlines' official yardstick. Then the hard part is over.

Step 7: The flight itself

You belong there exactly as much as everyone else who paid for a seat. Practicalities that help: keep the belt fastened low across your hips where it sits best; if the tray table doesn't fully open, use the seatback pocket and your lap; and if a seatmate or crew member is unkind, you owe them nothing beyond a request for the cabin crew, who deal with seat disputes far more often than you'd think.

Step 8: Deplaning, and the part nobody mentions

Take your time getting up; rows empty front to back and the plane will not leave with you on it. If you used an extender, hand it back or leave it on the seat. And if you bought a refundable second seat, set a reminder for the week you get home: the refund windows are real deadlines, and the second-seat guide walks through claiming what you're owed.

The short version

Choose by the planning numbers, personalize with My Numbers.
Read your airline's page; decide about the second seat before booking.
Save the gate card from your airline's page.
Ask for the extender at boarding; the guide has the script.
Fly. You were always going to fit the sky.

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