How to Find Cheap Flights

To find cheap flights, stay flexible on dates and airports, compare fares across several search tools, set price alerts and book when a fare drops into a range you are happy with. Then check the total cost, including bags and seat fees, before you pay. Flexibility usually saves more money than any single trick.

This step-by-step guide walks through how to search, when to book, how to compare budget and full service airlines and which popular hacks are worth your time. It is written for beginners who want a repeatable method rather than luck.

Key takeaways

Flexibility on dates, airports and even destinations is the biggest money saver.
Use more than one fare comparison tool and set price alerts for your route.
Compare the total trip price, including bags, seats and transport to the airport.
Book when a fare looks good for your route rather than waiting for a perfect day of the week.
Check the airline’s change and refund rules before you buy, especially on basic fares.
Know your passenger rights, which vary by country.

Step 1: How do you set a flight budget?

Setting a flight budget means deciding how much of your total trip money can go to airfare before you search. Start from your overall travel budget, subtract lodging, food and activities, and see what is left for flights. A clear number helps you recognize a good fare quickly and book with confidence.

Airfare is often one of the largest single costs of a trip, so it deserves a planned share of your budget. If you have not built one yet, our guide on how to create a travel budget walks through each category.

When you set the number, include:

The base fare
Checked and carry-on bag fees
Seat selection fees, if you care where you sit
Transport to and from both airports
Parking at your home airport
Any change fees you might face

If the flight budget feels tight, our guide on how to save money for travel has practical ways to build your fund before you book.

Step 2: How do you search for flights the smart way?

Searching for flights the smart way means starting broad and narrowing down. Use a fare comparison tool to see prices across many airlines, view a calendar or flexible date grid to spot the cheapest days, then check the airline’s own website before booking. Searching several tools helps because no single site always shows every fare.

Follow this search routine:

Start with a comparison tool. Well-known options include Google Flights, Skyscanner and Kayak. Each shows many airlines at once.
Use the flexible date or calendar view. This shows prices across a week or month so you can spot cheaper days.
Try nearby airports. Search by city or region rather than one airport when the tool allows it.
Check the airline website. Some fares, seat options or bundle deals appear only there.
Compare the same fare type. Make sure you are comparing basic fares with basic fares and standard fares with standard fares.
Note the total price. Write down the full cost including bags for each option you like.

Do incognito mode and clearing cookies lower fares?

Many travelers believe airlines raise prices when you search a route repeatedly. Fares do change often, mainly because of demand and how many seats remain at each price level. Searching in a private window or clearing cookies will not hurt, but it is not a dependable way to save money. Focus on flexibility and comparison instead.

Step 3: How flexible should you be with travel dates?

Being flexible with travel dates is one of the most effective ways to find cheaper flights. Shifting your departure or return by a day or two can change the price noticeably. Flights on less popular days and times, such as early mornings or midweek, are often cheaper than peak weekend and holiday departures.

Ways to use date flexibility:

View a full month. Look for the lowest priced combinations before choosing exact dates.
Avoid peak periods. School holidays, major festivals and long weekends usually push prices up.
Consider shoulder season. The weeks just before and after peak season can offer lower fares and fewer crowds.
Try different trip lengths. Staying a day longer or shorter can sometimes reduce the fare.
Check early and late flights. Departures at less convenient times are sometimes cheaper.

Flexibility option	How it helps	Trade-off
Shift dates by a day or two	Finds cheaper days in the same week	Changes your schedule slightly
Travel in shoulder season	Lower demand, often lower fares	Weather or opening hours may vary
Fly early morning or late night	Less popular times can cost less	Less convenient, may need extra transport
Change trip length	Different fare combinations	Fewer or more days away

Step 4: Should you use nearby or alternative airports?

Using nearby or alternative airports can lower your flight cost because different airports have different airlines, competition and fees. A smaller airport an hour away might be served by a budget airline, or a larger hub might have more competition on your route. Always add the cost and time of reaching that airport.

How to compare airports fairly:

List every airport within reasonable reach of your home and your destination.
Search each one, or use a tool that lets you search several at once.
Add ground costs. Include fuel, parking, trains, buses or rideshares.
Add time. Consider early departures and late arrivals that may need a hotel night.
Compare the true total. Choose the option that saves money after all costs.

Tip: Check arrival times before you celebrate a cheap fare at a secondary airport. A late night landing with no public transport can wipe out the savings with an expensive taxi.

Step 5: When should you book a flight?

You should book a flight when the price falls within a range that looks good for your route and dates, rather than waiting for a specific day of the week. Fares can rise as seats sell, especially for peak dates. Watching prices for a while helps you learn what a normal fare looks like.

There is no single perfect booking day that works for every route. Domestic and international flights, peak and off-peak dates and different airlines all behave differently. A few general patterns hold up:

Peak and holiday travel usually rewards booking earlier because popular flights fill up.
Long-haul international trips often need more lead time than short domestic hops.
Last minute deals do happen, but they are unpredictable and risky for important trips.

The best tool here is a price alert. Set alerts on two or three routes or date combinations, watch for a few weeks and book when the fare dips toward the lower end of what you have seen. For a wider view of trip timing, see how to plan a trip step by step.

Step 6: Are budget airlines really cheaper?

Budget airlines are often cheaper for the base fare, but extra charges for carry-on bags, checked luggage, seat selection and printing boarding passes can add up. A budget fare is a good deal when you travel light and follow the rules. It can cost more than a full service airline once you add everything you need.

Cost item	Budget airline	Full service airline
Base fare	Often lower	Often higher
Carry-on bag	May cost extra	Often included
Checked bag	Usually extra	Sometimes included, varies by fare
Seat selection	Usually extra	Sometimes included
Changes	Often limited or costly	Varies by fare type
Airport	May use secondary airports	Usually main airports

Before booking a budget airline:

Read the bag size and weight limits carefully and measure your bag.
Add every extra you need to see the real price.
Check whether you must check in online and how early.
Confirm which airport you are flying into.

The same logic applies to basic economy fares on traditional airlines. They can be cheap, but often limit seat choice, bags and changes.

Step 7: Which flight booking hacks actually work?

The flight booking hacks that actually work are simple: price alerts, flexible dates, comparing one-way tickets on different airlines, considering connections and using points or miles you already earn. Riskier tactics, such as hidden-city ticketing, can break airline rules and cause problems. Stick with methods that are transparent and allowed.

Methods worth trying

Mix one-way tickets. Sometimes two one-way fares on different airlines cost less than a round trip.
Consider a connection. Nonstop flights are convenient but sometimes cost more than routes with a layover.
Use points and miles. If you already earn rewards through a credit card or loyalty program, check award prices.
Sign up for fare alerts and airline newsletters. Sales are often announced to subscribers.
Search as a group and as individuals. On some routes, searching for one seat can reveal a lower fare class than searching for several.

Methods to approach with caution

Hidden-city ticketing: Booking a flight with a layover in your real destination and skipping the last leg breaks many airlines’ rules. You cannot check bags, and airlines may cancel return segments or take action against your account.
Very tight connections on separate tickets: If the first flight is late, the second airline usually has no obligation to help.
Unknown booking sites: Very low prices on unfamiliar sites can come with poor customer service. Check reviews and make sure you receive an airline confirmation code.

Step 8: What should you check before you pay?

Before you pay for a flight, check the full price, the fare rules, bag allowances, the airports and times, and the change and refund policy. Make sure your name matches your passport or ID exactly. These checks take a few minutes and can prevent expensive surprises or a denied boarding later.

Run through this checklist:

Confirm names. Use your name exactly as it appears on your passport or ID.
Check dates and times. Watch for overnight flights that arrive the next day.
Confirm airports. Some cities have several airports with similar names.
Review bag rules. Note carry-on and checked bag limits and fees.
Read change and cancellation rules. Basic fares are often the most restrictive.
Check entry requirements. Passport validity, visas and transit rules vary by country.
Save confirmations. Keep the airline confirmation code and receipt.

US travelers can check entry and passport requirements at travel.state.gov. UK travelers can use the foreign travel advice on gov.uk, and Canadian and Australian travelers should check their government travel advice sites.

Know your passenger rights

Passenger protections depend on where you fly and which airline you use. In the US, the Department of Transportation explains rules on refunds and cancellations, including its 24-hour reservation requirement for many bookings made in advance. UK and EU rules, Canadian rules and Australian consumer law each work differently, so check the relevant official guidance.

What are the most common mistakes when booking cheap flights?

The most common mistakes when booking cheap flights are focusing only on the base fare, ignoring bag fees, choosing an airport that is expensive to reach, booking non-refundable fares for uncertain plans and waiting too long for a lower price. Others include misspelled names and tight connections on separate tickets.

Ignoring extras. Always compare the total cost.
Forgetting airport transport. A cheaper flight from a distant airport may not save money.
Waiting for the perfect deal. Prices can rise while you wait for a dip that never comes.
Booking inflexible fares for uncertain trips. Paying a little more for flexibility can save money if plans change.
Mismatched names. Errors can be costly or impossible to fix.
Skipping the fine print. Read bag and change rules before you buy.

Once flights are booked, you can keep costs down across the rest of your trip with our guide on how to travel on a budget.

Frequently asked questions

What day of the week is cheapest to fly?

Midweek flights, such as Tuesday and Wednesday departures, are often cheaper than Friday or Sunday flights because fewer people travel those days. This is a general pattern, not a rule. Prices vary by route, season and airline, so use a flexible date view to compare the actual fares for your trip.

Is it cheaper to book flights at the last minute?

Usually not. Last minute fares can be lower occasionally when an airline needs to fill seats, but popular routes and peak dates often get more expensive as departure approaches. Last minute booking also limits your choice of times and seats. For important trips, set price alerts early and book when you see a good fare.

Do price alerts really help find cheap flights?

Yes. Price alerts track your chosen route and notify you when fares change, so you do not need to search every day. Watching alerts for a few weeks also shows you what a normal price looks like on that route. That knowledge helps you recognize a genuinely good deal and book with confidence.

Are cheap flight booking sites safe to use?

Many third-party booking sites are reliable, but quality varies. Use well-known sites with clear contact details and good reviews, and make sure you receive an airline confirmation code after booking. If something goes wrong, booking directly with the airline can make changes and refunds simpler, so compare both options before paying.

Sources and further reading

US Department of Transportation air travel consumer information for refund and cancellation rules.
travel.state.gov for US passport and entry requirements.
gov.uk foreign travel advice for UK travelers.
TSA for US airport security rules.

Rules and fees change often, so always confirm details with the airline and official sources before you fly. Ready for the next step? Use how to plan a trip step by step to fit your flights into a complete trip plan.

Featured photo: D Coetzee via Openverse (CC0).