
Flight Booking Guides
Short, practical guides written from our fare data and public airline policies. New guides are added weekly.
Data studies
All data studies →The Cheapest Month to Fly from Each US Hub
Monthly lows across hundreds of routes, averaged by departure city.
The Cheapest Day of the Week to Fly
Day-by-day lows across hundreds of routes show which weekday prices lowest, by how much, and how it varies by city.
Do Nonstop Flights Cost More?
On routes where both a nonstop and a connecting fare were recorded, how often the nonstop is the cheaper ticket.
Booking tips
All booking tips →
The Cheapest Days to Fly, and Why
Which days of the week have the lowest fares, how much the difference is, and how to use it when your dates are flexible.

How Far Ahead to Book a Flight
The booking windows that produce the lowest fares for domestic and international travel, and when booking early backfires.

Basic Economy Explained: What You Give Up for the Lower Fare
What basic economy excludes on each major US airline, when it is worth it, and when a standard fare is the better buy.

How to Change a Flight You Booked Online
Who can change your ticket, what it costs by fare type, and why calling before the flight matters.

One-Way vs Round-Trip: When Two Tickets Beat One
How US carriers price one-ways, when mixing airlines saves money, and the international exception.

How Airline Flight Credits Work
Expiry rules, who can use a credit, combining with cash, and the mistakes that cost people their money.

Booking a Flight by Phone vs Online: What Actually Differs
Same fares, different service. Where a phone agent saves money and time, and where clicking is fine.

How a Travel Agent Finds a Cheaper Fare: The Seven Checks
The checklist a good phone agent runs on every quote, and why each one moves the price.

Are Red-Eye Flights Worth It?
When the overnight departure saves real money, which routes have them, and how to make one bearable.

Fare Classes Explained: Why Two Economy Tickets Cost Different Amounts
Booking classes, fare brands, and what the letters on your ticket mean for changes, upgrades, and miles.

Flying with a Baby: Lap Infant Rules, Fees, and Seats
What a lap infant costs on domestic and international flights, when to buy the baby a seat, car seats, bassinets, and the documents airports ask for.

REAL ID and What ID to Bring to the Airport
Which IDs TSA accepts now that REAL ID is enforced, what children need, and the passport rules that trip up international travelers.

Seat Selection Fees: When You Pay, When You Don't, and Sitting Together
How seat fees work on the major US carriers, which fares include a seat, how families get seated together without paying, and when to just pick at check-in.

Multi-City and Open-Jaw Tickets: How They Are Priced and When They Save Money
Fly into one city and out of another, or string three cities together, on a single ticket. When it beats two one-ways, and how an agent builds it.

How Much Connection Time You Need, Airport by Airport Type
Minimum connection times, what a safe layover looks like domestically and internationally, and when a longer layover is the cheaper and safer choice.

Codeshare Flights Explained: Who Operates Your Flight and Why It Matters
What it means when a ticket says 'operated by' another airline, which rules and fees apply, where you check in, and how to tell before you book.

Group Flight Bookings: How Blocks, Deposits, and Name Lists Work
Booking ten or more passengers on one flight: group fares, deposits, when names are due, seat blocks, and when individual tickets are the better deal.

Travel Insurance vs a Flexible Fare: Which One Actually Protects You
What airline flexibility already covers for free, what trip insurance adds, the 'cancel for any reason' option, and how to decide on a given trip.

Missed Your Flight? What to Do in the Next Hour
Whether you can still be rebooked, the informal grace some airlines extend, why a no-show voids the rest of your ticket, and the fastest way back on a plane.
Airline policies
All airline policies →
The 24-Hour Flight Cancellation Rule, Explained
How the US Department of Transportation's 24-hour rule works, which tickets it covers, and how to use it.

Same-Day Flight Changes: How Each Airline Handles Them
Same-day confirmed changes and standby rules on Delta, United, American, Southwest, Alaska, and JetBlue.

Name Correction Rules by Airline
What each airline allows when a passenger name is misspelled, what it costs, and what cannot be changed.

Airline Bereavement Policies: Who Still Offers Flexibility
Which airlines offer bereavement fares or waived change rules, what they ask for, and the practical alternative.

Unaccompanied Minor Rules and Fees by Airline
Age ranges, fees, nonstop requirements, and what happens at drop-off and pick-up on the major US carriers.

Your Flight Was Cancelled: Rights, Refunds, and Rebooking
What airlines owe you when they cancel, how to choose between rebooking and a refund, and how to get moving fastest.

Checked Bag and Carry-On Rules Compared Across Airlines
How the major US and international carriers differ on carry-ons, first-bag fees, and who gets bags free.

Airline Pet Policies Compared: In-Cabin, Checked, and Cargo
Which airlines take pets in the cabin, size and fee rules, and the shrinking options for larger dogs.

When Airlines Owe You a Cash Refund, Not a Credit
The US Department of Transportation's automatic refund rule: which cancellations and schedule changes qualify, how fast the money must come back, and how to ask.

Flying with a Wheelchair or Mobility Device: What to Request and When
Wheelchair assistance at the airport, travelling with your own chair or scooter, batteries, seating rules, and how to get every request onto the booking.

Military Fares and Baggage Allowances: What US Carriers Offer
Which airlines sell military fares, what active-duty and dependents get on checked bags, how orders and ID are checked, and how to ask for the fare.

Flight Delays: What US Airlines Owe You, and What They Don't
There is no federal payout for a delay in the US. What you can actually claim — meals, a hotel, a refund — and how the controllable-versus-weather line decides it.

Bumped from a Flight: Overbooking and Denied-Boarding Compensation
Why airlines oversell, the difference between volunteering and being bumped involuntarily, and the federal formula that sets what an involuntary bump pays.

When the Airline Changes Your Schedule: Your Rebooking and Refund Rights
Airlines move flight times and drop connections weeks before you travel. Which changes you can refuse, when a full refund is owed, and how to get a better rebooking than the one they picked.

Flying with Sports Gear and Musical Instruments: Bags, Fees, and the Cabin Rule
How airlines handle golf clubs, skis, bikes, and surfboards, the federal rule that lets small instruments in the cabin, and how to protect a fragile item in the hold.

Flying While Pregnant: Airline Cutoffs, Documents, and Comfort
When airlines start asking for a doctor's note, the late-pregnancy travel limits that differ by carrier and country, and how to make the flight easier.
Airports
All airports →
JFK, LaGuardia, or Newark: Which New York Airport to Fly From
How the three New York airports differ on fares, airlines, transit, and which to choose by destination.

Which Florida Airport to Use for the Theme Parks
Orlando, Sanford, Tampa, and Melbourne compared for Disney, Universal, and the Space Coast.

Chicago O'Hare vs Midway: Which Airport to Fly From
Airlines, fares, transit, and which Chicago airport suits which trip.

The Right Airport for Every Major US Cruise Port
Which airport to fly into for Miami, Fort Lauderdale, Port Canaveral, Tampa, Galveston, Seattle, and more.

LAX, Burbank, Long Beach, or Orange County: Which Los Angeles Airport
Four airports, very different experiences. Which to fly into by where you are staying and which airline you prefer.

Reagan, Dulles, or BWI: Which Washington Airport to Use
The three Washington-area airports compared on airlines, fares, and getting downtown.

Houston Hobby vs Bush Intercontinental: Which Airport to Fly From
Southwest at Hobby, United at Bush, and how fares and drive times compare across Houston.

DFW vs Love Field: Which Dallas Airport to Fly From
American's mega-hub against Southwest's home base, compared on destinations, fares, and convenience.

San Francisco, Oakland, or San Jose: Which Bay Area Airport to Fly Into
SFO, OAK, and SJC compared on fares, airlines, fog delays, and ground transport, with the rule for choosing by where you are staying.

Miami, Fort Lauderdale, or West Palm Beach: Choosing a South Florida Airport
MIA, FLL, and PBI compared for fares, cruise ports, drive times, and which one the low-cost carriers use.

Boston Logan, Providence, or Manchester: Which New England Airport Is Cheaper
BOS, PVD, and MHT compared on fares, carriers, and drive times, and when the smaller airports beat Logan on price.
Destinations
All destinations →
The Cheapest Florida Cities to Fly To
Orlando, Tampa, Fort Lauderdale, Fort Myers, or Miami: which Florida airport is cheapest from the North, and when.

The Cheapest Months to Fly to Hawaii
When Hawaii fares drop, which islands are cheapest to reach, and the mainland cities with the most nonstops.

Caribbean Flights from the Northeast: Where the Nonstops Go
The Caribbean islands with nonstop service from New York, Boston, and Philadelphia, and when they are cheapest.

Flights to Mexico: Cancun, Mexico City, and the Beach Towns
Which Mexican destinations are cheapest from the US, which airlines fly them, and when fares drop.

Flights to Nigeria and Ghana from the US: Carriers and Booking Tips
Nonstop and one-stop options to Lagos, Abuja, and Accra, baggage allowances, and when to book.

Flights to the Philippines from the US: Routes, Carriers, and Timing
Nonstops to Manila, the cheapest connections, baggage rules that matter for balikbayan travel, and when to book.

The Cheapest European Cities to Fly To from the US
The gateways that price lowest from US cities, and how to reach the expensive capitals through them.

Cheap Flights to Las Vegas: Days, Months, and Airlines That Price Lowest
How Las Vegas fares move with conventions and weekends, the months that price lowest, and the carriers that compete on the busiest routes.

Flights to Puerto Rico from the Mainland: No Passport, Many Nonstops
San Juan and the smaller airports, the cities with nonstop flights, the cheapest months, and why Puerto Rico prices like a domestic trip.

Flying to Alaska: Cheapest Months, Gateway Cities, and the Anchorage-Fairbanks Choice
When Alaska fares are lowest, which mainland cities have nonstops to Anchorage, and how to get to Fairbanks, Juneau, and the cruise ports.
Seasonal
All seasonal →
The Snowbird Flight Guide: Northeast and Midwest to Florida and Arizona
When to book winter flights south, which routes are cheapest, and how to handle the return when dates are open.

When to Book Thanksgiving and Christmas Flights
The dates that are cheapest and most expensive around the holidays, and the deadline after which fares only rise.

Spring Break Flights: When to Book and Where It Is Cheapest
The spring break calendar, the destinations that spike, and the ones that stay reasonable.

Summer Flights to Europe: Booking Windows and Cheaper Gateways
When European summer fares are lowest, which gateways cost less, and how open-jaw itineraries save money.

Summer Flights to India and Pakistan: Carriers, Bags, and Booking Windows
Which airlines serve South Asia from the US, baggage allowances that change the real price, and when to book.

Holiday Flights with Kids: Seats Together, Timing, and Backup Plans
How to guarantee adjacent seats, which flights to pick with children, and what to do when winter weather hits.

Fall Shoulder Season: The Cheapest Weeks of the Year to Fly
Why September through early November is the low point for fares, and where the deals are best.

Winter Storm Flight Waivers: How to Change Your Flight for Free Before the Snow
How airline weather waivers work, how to find out if your airport is covered, what you can change without a fee, and why the phone beats the app when a storm is coming.