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8 Must-Know Pieces of Advice for Booking Flights Online

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A long time ago in ye olde pre-internet times, I was in sales for a leading tour operator. My job was to advise travel agents on our tours so they could talk to their customers about it as part of their trip consulting.

If a traveler called us for advice on our toll-free travel agent hotline, we actually had to direct them to a travel agent instead of helping them. That’s how layered the industry was. Times have changed, though.

No longer content to hear the clicking of someone else’s fingernails on a keyboard working some mysterious screen, the flying public demands the freedom to check their routes and prices to find cheap flights.

Yet successful travel agents are trained to find the best flights. The rest of us need actual advice for booking flights that are cheap, convenient, going to the right city, etc., etc.

Cheap Flights Online: 10 Things to Know

Here, we’ve compiled a helpful guide to use when you want to be your travel agent and find the best fares and itineraries.

But be warned: After following our flight booking tips, you’ll get so good at it that your friends may expect the same services for their travels.

1. Booking Flights in Advance

Woman Using a Laptop and Holding a Credit Card

If you want to know how best to book flights online, the first rule is to plan as far as in advance as possible. Fares may drastically increase in price as you approach the departure date.

Aim for within three months to 30 days from departure. Use Kayak’s price predictor that follows price trends to let you know if prices for that route tend to increase, decrease, or remain stable.

They are not 100% accurate, but Kayak does use real data for their tool to help you find cheap flights.

If you are particular about where you sit (aisle vs. window, bulkhead vs. exit row, etc.), booking early will likely get you your preferred seat.

On high travel dates, flights will fill up quickly; if you wait, you may end up in the back of the plane by the lavatories.

Or, just as bad, you’ll have to pay a premium to get a seat toward the front, which is ridiculous because all the seats go to the same place.

Something else you’ll want to get early is travel insurance to protect your cheap flight against cancellations or changes you didn’t anticipate. is a great carrier, and we recommend looking at their coverage.

See Related: Must-Know Vacation Tips to Maximize Your Trip Experience

2. Price Alerts

One of the best booking flight tips we can share is how to set up fare alerts, so they go to your phone or your email. This is great if you have a route or destination in mind and want to be notified of a cheap flight.

Even a small discount can add up to big savings if you’re buying tickets for the whole family. There are a couple of ways to do this. (Formerly Scott’s Cheap Flights) Logo

Get flight deals emailed to you multiple times a day for free. Sign up for free and select your preferred U.S. departure airport. The larger and busier your airport, the more deals you’ll get.

At Going, they use a team of people who look for great fares with good flight experiences in the form of decent times and popular destinations.

In the email, you’ll see all the details about specific flight deals and “how to book the cheap flight,” etc. Note you do not book the flight deals on Scott’s Cheap Flights website.

Instead, you go to the airline directly, which is great if you don’t like the extra layer of another website between you and the carrier.

Upgrade to an affordable paid membership and get better deals like cabin specials, weekend fares, and mistake pricing where the wrong fares are listed.

See Related: How to Find Mistake Fares [Complete Step-by-Step Guide]

Dollar Flight Club

Dollar Flight Club Logo

Dollar Flight Club is similar to Scott’s Cheap Flights in that they are both subscriptions that send flight deals to your inbox.

Both have free forever plans with options to upgrade for a more personalized experience. The difference comes down to how Dollar Flight Club finds cheap flights. They use automated technology to gather data from the web to find the cheapest flights.

They also have an easy-to-use app!


Skyscanner Logo

This is one of our favorite online booking websites because you can set up a price alert to ping you on your phone or email you about a cheap flight.

Setting up is free, and you can stop them anytime on Skyscanner. Create as many as you want to capture those deals from other airports you can use or are flexible on when you can go.

Use the search box to find a flight to your preferred destination. Choose a date or month, then when the results come up, select “Get Price Alerts.”

Follow the instructions, and soon, you’ll see notifications arriving by email or phone if you have their great app.

Google Flights

Google Flights Logo

Set a price alert and get notified of any fluctuations. Google Flights is free and easy, and you only need a Google account. You can even see trends in a graph mode, which thrills me as a data lover. It’s a simple way to find a cheap flight.

3. Flexibility

Plane Landing on a Runway

The best way to book flights without breaking the bank is by being flexible with your travel dates and times. Ticket prices can fluctuate greatly from day to day and month to month. Holiday travel is as expensive as it gets.

Summer, too is a very expensive season for flying because that’s when families take vacations. So if you want to snag a cheap flight, you’ll need to stay away from the winter holidays and most of the summer.

The good news is that not only will you find cheap flights off-season, but your destination will be less crowded and hotels will be cheaper.

Go ahead and plan that dream trip to Bolzano or Madrid. Just fly in the spring or fall when it’s cheaper, cooler, and less crowded.

Also, consider flying in the middle of the week and leave the weekends to the folks with champagne vacation budgets. And if you need to fly for a holiday, you’ll find the cheapest flights in the early morning or red-eyes. Not ideal, but cheap!

Show that same flexibility with your destination, too. Use the Everywhere tool on Skyscanner to explore the cheapest flights to anywhere and make your decisions that way.

Finally, changing airports can save you money with a cheap flight. Many cities have secondary airports that don’t cost as much money as the big international ones.

If you’re flying into a hugely popular destination, it may make more financial sense to fly into a nearby city and rent a car or find other transportation to the giant magical mouse-land.

Bottom line: You’ll save money if you remain open-minded about where and when you go!

See Related: Why So Many Flight Cancellations? Here’s What You Need to Know

4. Connecting flights

Airplane Seats and Interior

Many frequent flyers know how to book cheap flights online by using connecting flights. This can save you money in a few ways.

One way is to filter flight deals on search engines by the number of connecting flight options. The more connections there are, the more likely it’s a cheap flight.

Another way is to make your own itinerary. Some routes you’ll expect a transfer – say most departures in the continental U.S. to Hawaii or Alaska when most of the routes involve a layover in California or Washington.

Check to see if you can book the flights separately – DFW to LAX, then LAX to Honolulu (HNL) on a separate itinerary. Don’t worry about using the same airline. In fact, you should focus on the small or regional budget airlines that fly those routes every hour.

Alaska Airlines serves the west coast and Hawaii for instance and could offer cheaper flights than a major airline.

But do worry about tight layovers! Check the gates and terminals and consider how much time you’re giving yourself to get from one to the other.

The savings could be significant. This works crazy if you’re spending a night or two in your connecting city (great for international flights).

And if you’re not, then you’ll want to just have a carry-on bag or you run the risk of getting separated from your luggage which is not worth a cheap flight. Another way is using Skiplagged which lists connecting flights where you can use one leg to get to your destination and leave the other leg unused.

It can be cheaper to fly that way. Look, don’t feel bad the airline people put the route together like this. But you can definitely take advantage of it when it happens.

See Related: How to Get Free Flights

5. Discounted Flights

Hand Holding a Red Balloon with Percentage Sign

Now you know when to book flights. But where are the real discounts? Try discount airlines, otherwise known as low-cost carriers.

Southwest and Jet Blue are typically safe bets as budget airlines offer good customer service and convenient routes to popular destinations at savings.

Then there are the ultra-low-cost carrier budget airlines… The important thing to remember when using these types of budget airlines is to read reviews about their services. Some of them may cost you in stress levels even if they do help you save money on a cheap flight.

For example, some airlines offer cheap flight tickets because they cram more passengers in the cabin. It’s uncomfortable but still cheap. So you’re cutting into your experience a bit. But if Europeans can use budget airlines, we can too, gosh darn it!

Here are some other things to know about using ultra-low-cost airline tickets. Low-cost carriers typically charge passengers for services other airlines normally include in the ticket price.

Some budget airlines charge for baggage, both checked and carry-on bags. You also have to pay if you want to select your seat in advance or an inflight snack.

They often have limited availability on alternate flights if yours gets canceled or you need to change your dates. You also need to consider if the airport they fly into is convenient since many of them use secondary airports, which are cheaper to fly into.

Finally, no one is handing out awards for customer service at the ultra-low-cost carriers.

See Related: How to Cheap Cheap Last Minute Flights

6. The Best Cheap Flights Websites

Otherwise known as third-party websites, these portals let you compare airline prices for cheap flight tickets without leaving the site. You should check more than one of these sites, including the airline website, so you know you are finding the best flight deals before you book.

Another tip: Southwest Airlines fares are only listed on their website, with a few exceptions. Here are the ones we like to use to find cheap flights:


Best for flexibility with their “Everywhere” search. You can search for the best flight deals even when you don’t know or care where you go on Skyscanner.


Kayak Logo

Best for finding the most budget airlines and their cheap flights. The Kayak success rate in finding cheap flights is higher than most other booking websites.


Priceline Logo

Best for offering a generous cancellation window. With Priceline, you can cancel up until 11:29 pm eastern time on the next business day after purchase.

If you buy your ticket just after midnight on Friday, you’ll have until 11:29 pm Monday night to cancel it completely. Frontier and Spirit are the only exceptions.


Expedia Logo

Best for searching multiple destinations and listing baggage fees along with cheap flight tickets. Expedia also has a loyalty program where you earn a reward point for every $5 you spend on a flight.


Hotwire Logo

Best for including non-U.S.-based carriers in their 24-hour cancellation policy. Most booking websites only do that for U.S. carriers. You should still check the policy of your flight if it’s strictly non-refundable as per the airline.

Hotwire also offers a low price guarantee so if you find a lower rate on an identical flight, they will pay you the difference which is great when you’re looking for the cheapest flights.


Orbitz Logo

Orbitz has one of the best rewards programs and has a 24-hour prior-to-departure cancellation policy. Their rewards program is free to join and earn Orbucks, which you can then redeem booking hotels on Orbitz. Another great feature is the ability to cancel flights in the app up to 24 hours before departure.

CheapOair Logo

Best for having a low-fare calendar as a booking tool. If you are flexible on your dates, lets you see the prices of flight tickets across two months in a calendar.

You can then click on a good date and see the flight deals. It isn’t available for all the flights, but it’s a cool money-saving tool if you can use it.


Travofy Logo

It is best if you need extra support available when flying. Ever wish you had a customer service agent on speed dial when you fly, especially internationally?

With Travofy, you can pay for speedy and responsive customer service to be on call for you while you travel. Logo

Best for transparent price quotes. is great about clearly disclosing fees for baggage, changes, cancellations, and other typically hidden fees.

They have responsive customer service that you can call too.


Skiplagged Logo

Best for hidden city ticketing. Savvy fliers love that Skiplagged uncovers fares cheaper if you deplane in your layover city instead of using the entire flight.

It’s a little controversial, but you can save a bundle when it works.

See Related: Skiplagged Review 2023: Is It Safe and Legit? Logo

Best for finding cheap flights to major destinations.’s search results are easy to decipher and you can see all the options based on price, flight time, and carrier.

So if you’re traveling to a big city and you know there will be way too many options, sorting through them all will give you a migraine? Use


OneTravel Logo

Best for having a slick website! OneTravel has an attractive website that’s easy to find cheap flights seamlessly.

7. Airline Specials

Sale Sign Surrounded with Gifts

Last-minute flight deals can give you big savings if you’re willing to be spontaneous. Airlines don’t like to fly with empty seats. They may be willing to pay a low fare just to fill them.

Or if it’s a new route they’re trying to promote, they may run a sale on flights that aren’t during the middle of the night.

You can create a Google flights alert to notify you by email when an airline is having a fare sale or promoting a new route with a press release.

8. Travel Rewards

It may seem daunting, but people fly for free all over the world because they use a travel reward credit card to earn points.

Sign up for one, understand the rules about earning and redeeming points, hit their minimum spending limit, and grab their signing bonus points.

Sometimes, the bonus is enough for free flights almost immediately. There are a couple of different types of cards.

One type called co-branded airline miles credit cards, earns you points for a particular airline. Or you can get a more general card to earn and redeem points with partner airlines.

Redeem your points through the credit card travel portal or transfer them directly to partner airlines–good for when you are saving them up for a particular trip.

Delta Skymiles Blue by American Express is a good option for infrequent flyers. There is no annual fee, and the rewards program is a solid one.

You earn 10,000 bonus miles when you spend $500 with your card in the first 3-months. Here are some other perks:

  • 2X Miles per dollar at restaurants worldwide and on takeout and delivery in the U.S.
  • 2X Miles per dollar spent on purchases on Delta and 1X Mile on all other eligible purchases.
  • Use your Miles to take up to $50 off your flight for every 5,000 miles you redeem with Play With Miles on
  • Get a 20% credit after you use your card on eligible in-flight purchases of food, drinks, and headsets on your Delta flights.

It’s best to use your travel rewards card on as many purchases as possible so you can rack up miles fast. Be sure to pay your balance each month, so you’re not using your flight savings on interest or fees. Redeeming your points on any rewards program depends on the card you carry.

You’ll find instructions online or in your welcome information about how to log on to their travel portals to book flight tickets with your points.

An easy way to keep up with how many miles you’re collecting if you’re using multiple rewards programs is with this award wallet. More flight booking tips: Most reward cards waive the baggage fees for some or all of your bags if you use the card to pay for the flight.

Check the policies of your rewards program because that is big money. Some of them also offer the use of their premium airport lounges that often have free drinks, food, and a quiet place to relax before your flight.

And if you fly internationally, you can get your Global Entry fee reimbursed so you can skip the security lines that cut into your fun time and patience.

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