What to Check Before You Buy a Flight Ticket
The five things to verify before you complete the purchase
Stop before you click the final "buy" button. Most flight booking mistakes happen in the last 30 seconds, when you are focused on price and not on what you are actually buying. The five checks below take two minutes and catch the problems that cost money to fix later.
First, confirm the dates are correct — not just the day, but the year. Second, verify the airports: some cities have multiple airports, and a cheaper flight to the wrong one adds hours and cost. Third, check the number of stops and total travel time, because the cheapest option often means a connection that eats your whole day. Fourth, look at the baggage policy before you buy, because some carriers charge for carry-ons. Fifth, read the cancellation and change rules, because "non-refundable" means exactly that.
Key Takeaways
- Verify the departure and arrival airports by their three-letter codes, not just the city name, because some cities have multiple airports with different distances to town.
- Check the total travel time including layovers and ground time, not just the flight duration, because a $50 savings can cost you a missed connection or a wasted day.
- Read the baggage policy on the airline's own website before you buy, because booking sites do not always show carry-on restrictions or checked bag fees.
- Confirm the cancellation and change policy in writing — screenshot it — because you cannot change a non-refundable ticket even if your plans change the next day.
- Verify your name matches your ID exactly as it appears on your passport or driver's license, because airlines will not let you board if it does not.
Checking the airports and dates
The airport code matters more than the city name. New York has three major airports: JFK, LaGuardia (LGA), and Newark (EWR). Los Angeles has LAX and Long Beach (LGB). Chicago has O'Hare (ORD) and Midway (MDW). A flight to the wrong airport can add an hour of travel and $30 to $50 in ground transportation. Before you buy, write down the three-letter code for both your departure and arrival airports and match it against what the booking site shows.
For dates, check the year as well as the month and day. Booking sites sometimes default to next year if you are booking far in advance, and you will not notice until you arrive at the airport. Look at the full date in the confirmation summary — not just "March 15" but "March 15, 2025" — and compare it to your calendar or your time off request.
Understanding layovers and total travel time
The flight duration shown on most booking sites is the time in the air, not the time you spend traveling. A flight from New York to Los Angeles might show as 5 hours 20 minutes, but if you have a two-hour layover in Denver, you are looking at 9 hours or more from the moment you leave home to the moment you arrive. Add time to get to the airport early, and a cheap flight with a connection can take 12 hours of your day.
Before you buy, click on the itinerary details to see the layover time. Anything under 90 minutes is tight — if your first flight is late, you will miss the connection. Anything under two hours on an international flight is risky. If the layover is in a different terminal or a different airport entirely, add extra time. Some booking sites show this; others do not. Check the airline's website directly if the booking site does not give you the full picture.
Baggage policies and what they actually cost
A ticket price of $89 can become $139 once you add baggage fees. Some airlines include a carry-on and personal item in the base fare. Others charge $35 to $50 for a carry-on bag. Checked bags usually cost $30 to $40 for the first bag and more for additional bags. Budget airlines like Spirit and Frontier are known for low fares and high baggage costs; full-service carriers like Delta and United usually include at least one checked bag if you are flying on a paid ticket.
Do not rely on the booking site to show all baggage fees. Go to the airline's website, find the baggage policy page, and read what is included in your fare class. If you are booking a basic economy or light fare, baggage is often extra. Write down the baggage cost and add it to the ticket price to see the real total. If you are traveling with a large suitcase, the baggage fee might make a more expensive airline cheaper overall.
Cancellation and change policies before you buy
The difference between refundable and non-refundable is absolute. A non-refundable ticket means you cannot get your money back if you do not fly, even if you cancel the day before. You may be able to change the flight to a different date or destination, but only if the airline allows it, and only if you pay the difference in fare plus a change fee. Some airlines charge $75 to $150 to change a flight. Others allow one free change but charge for a second.
Before you buy, look for the cancellation and change policy on the booking site or the airline's website. Screenshot it or write down the key details. If the policy says "non-refundable" and "changes subject to availability and fees," that is what you are getting. If you think there is any chance your plans might change, a refundable ticket or a flexible fare option is worth the extra cost — usually $20 to $50 more.
Verifying your name and payment information
Your name on the ticket must match your ID exactly. If your ID says "Robert" but you book as "Bob," you will not be allowed to board. If your ID has a middle initial and you leave it off, that can be a problem. Check your passport or driver's license and type your name into the booking form exactly as it appears there — including middle names, hyphens, and accents if your ID has them.
Before you click buy, review the passenger information one more time. Look at the confirmation summary and make sure every name is spelled correctly. If you are booking for someone else, ask them to send you a photo of their ID so you can copy the name exactly. Airlines will not change a name after you buy the ticket, or they will charge a large fee to do so.
For payment, use a credit card rather than a debit card if you can. Credit cards offer more protection if something goes wrong with the booking or if you need to dispute a charge. Check that the billing address matches your card issuer's records. Some booking sites flag mismatches and will not process the payment.
Comparing the final price across sites
Before you buy on one site, check the price on at least one other. Google Flights, Kayak, Skyscanner, and the airline's own website often show different prices for the same flight because of how they calculate taxes and fees. A flight that appears cheaper on one site might be more expensive once all fees are added. Some sites show the total price upfront; others add fees at checkout.
Open the airline's website in a separate tab and search for the same flight. If the price is lower there, book directly with the airline. You will have better customer service if something goes wrong, and you will not have to deal with a third-party booking site. If a third-party site is cheaper, make sure the price shown includes all taxes and fees before you click buy.
Frequently Asked Questions
What should I do if I notice a mistake after I buy the ticket?
Contact the airline or booking site immediately. If it is a name spelling error, some airlines will correct it for free if you catch it within 24 hours. If it is the wrong date or airport, you will likely have to cancel and rebook, which means losing money if the ticket is non-refundable. The faster you catch it, the more options you have.
Is it cheaper to book directly with the airline or through a booking site?
It varies by airline and by route. Some airlines offer the same price on their website and on third-party sites. Others offer lower prices on their own website to avoid paying commissions to booking sites. Check both before you buy. Booking directly with the airline usually means better customer service if your flight is delayed or cancelled.
Can I change my flight after I buy it if my plans change?
Only if the airline allows it and you pay any applicable fees. Non-refundable tickets often allow one free change to a different date or flight, but some do not allow any changes. Refundable tickets usually allow changes without penalty. Check the policy before you buy so you know what your options are if something comes up.
What if the price drops after I book?
Most airlines and booking sites do not offer refunds if the price goes down. You are locked into the price you paid at checkout. Some credit cards offer price protection that will refund the difference if you booked with that card, so check your card's benefits. Otherwise, the lower price does not help you.
Should I buy travel insurance when I book a flight?
Travel insurance covers cancellations, medical emergencies, and lost luggage, but it is not required and is often expensive. If you are booking a non-refundable ticket for a trip that could be disrupted — a wedding, a business meeting, a time-sensitive event — insurance might be worth it. Read what it covers before you buy, because some policies have exclusions or high deductibles.