13 Best Airfare Sites to Book Cheapest Plane Tickets (Up to 6% Cashback)

13 Best Airfare Sites to Book Cheapest Plane Tickets (Up to 6% Cashback)

    Searching for a flight can be a bit overwhelming. There are so many factors: dates, times, price, fare class, airline, and more.I believe that most people may care about the price.Most of the popular OTAs (Online Travel Agencies) are usually in the same ballpark for the price, but not all offer the same benefits or search functionality.More often than not, booking directly through the airline’s website will give you the best price, or will at least be the same as the OTAs.If you want to buy cheapest plane tickets,you will take more time.Of course, to book through the airline’s website, you first need to know which airline has the best prices.So What is the cheapest website to book a flight?What is the cheapest way to buy plane tickets?Where can I find cheap flights for 2021?This post will tell you all about the best websites for finding cheap flights without a specific destination.


Cover Photo:Iler Stoe on unsplash.com

1. Expedia

With Expedia, you can book at over 100,000 hotels worldwide, plus extensive cruise, airline, car, vacation package and activity products. Find great prices, a 24-hour hotel sale each Wednesday, promotions, last minute deals and more. From families booking a summer vacation to individuals arranging a quick weekend getaway, Expedia provides travelers with the ability to research, plan, and book their comprehensive travel needs. Plus, you can book with confidence with the Expedia Best Price Guarantee.




  • Expedia Rewards (although Expedia rewards have far better earning potential on hotels, cars, packages, activities, and cruises)

  • Shows baggage fees; fare alerts; flexible date prices


  • Provides fair prices only on routes that are outside the usual routine

  • Limited filters

  • Booking through Expedia may limit your mileage earned toward elite status

【Coupons & Discounts】

(1). Save 10% or more on thousands of properties with member prices.

(2). Daily amazing flight deals.

【Cashback from Extrabux】When you buy plane tickets from Expedia, don't forget to sign up at Extrabux (What is Extrabux?). Then you can get Up to 6% Super Cash Back from Extrabux! Sign-Up Bonus: Free to join it & get $20 welcome bonus!

2. CheapOair

Feted with several prestigious awards for their unparalleled customer service, CheapOair is a top-class booking site that provides quality fares for hotels, air travel, and car bookings. Its prices are well organized on a calendar, and the website is attractive and user-friendly. The booking site prioritizes nonstop flight prices over itineraries with stops.




  • CheapOair members discounts;mystery airline deals

  • CheapOAir has a pretty nifty flexible date search

  • Vacation packages; showing details on fare rules (and, for some US carriers, seat selection map); alternate date fares


  • Their booking fees are not as cheap as advertised

  • CheapOair charges hefty booking fees

  • With a few exceptions on last-minute international travel, not very good at finding the best price

【Coupons & Discounts】

(1). Sign up & save up to $15 with a promo code.

(2). Earn 7X/ $1 in Rewards on CheapOair.com with CheapOair Credit Card.

(3). Book flights under $199.

(4). Find the flight deals.

【Cashback from Extrabux】Up to $12.5 Super Cash Back

3. Booking.com 

A website that impresses with its low airfare prices and clear labeling of various offers. It boasts top-tier filtering tools that make it easy to find, filter, and compare different flights so that you can select the one that resonates with your unique needs. The site also allows you to customize the offers — you can filter your search by the preferred airport, number of stops, airline, and departure and arrival time.




  • Shows luggage fees and restrictions

  • Very simple interface; plenty of filters for results

  • Lowest prices


  • Mostly fair-to-middling on price

  • Flexible dates feature is comparatively basic

【Coupons & Discounts】Save 20% or more on your next booking to get 2021 off to a good start.

【Cashback from Extrabux】4% Super Cash Back

4. Priceline

Priceline is a world leader in travel deals. Priceline offers exclusive discounts on hotels, flights, alternative accommodations, rental cars, cruises and bundled trips.

Priceline is a popular OTA that introduced the Name Your Own Price tool and opaque bookings. These types of bookings can offer discounts, but many of the details are hidden until after the booking. Priceline helps millions of travelers be there for the moments that matter. For them, and for their customers, every trip is a big deal.




  • Express Deal flights. These flights can offer a good discount if you have some flexibility. Many of the details of the flight including airline and arrival and departure times are hidden until the booking is complete

  • Price Match Guarantee

  • Free online cancellation within 24 hours of booking (except for Express Deal flights)


  • Priceline doesn’t offer the ability to search for flexible dates. Even having a day or 2 of flexibility can save you money

  • Express Deal flights. While these can be good deals, they aren’t always

【Coupons & Discounts】

(1). Use code SPRING08 for 8% off Express Deal hotels and rental cars. Travel anytime. Max savings of $50.

(2). Use code SPRING10 for 10% off Express deal hotels. Must check in between June 1, 2021 - December 31, 2021. Max savings of $50.(Both codes valid 3/1/21 - 3/7/21)

(3). Save up to 40% off Tampa Bay Hotels.

【Cashback from Extrabux】Up to 5% Super Cash Back

5. Travelocity

Travelocity is yet another OTA that has been around for a while. They offer many of the same benefits as other sites like the Price Match Guarantee and free cancellation within 24 hours.Travelocity Bargain Fares are opaque bookings, meaning you won’t know all the details of your flight until after your purchase is complete. These flights are featured at the top of your search results and can offer savings if you have flexibility in your schedule.

It should be noted that Expedia owns Travelocity, so this flight booking site basically gives you Expedia price results with a different color scheme and organizational preferences.




  • Price Guarantee: If you find a lower price on an identical itinerary within 24 hours, Travelocity will refund the difference in price plus give you a $50 credit to use on a future booking.

  • Travelocity Bargain Fares

  • Free cancellation on flights within 24 hours of booking (on most airlines)


  • Travelocity sometimes charges a booking fee

【Coupons & Discounts】

(1). 40% off + free cancellation on hotels and vacation rentals.

(2). 15% off select hotels in the App with code APP15.(book by march 31,2021)

【Cashback from Extrabux】Up to 4% Super Cash Back

6. Orbitz

Orbitz Worldwide is a leading global online travel company that uses innovative technology to enable leisure and business travelers to research, plan and book a broad range of travel products.One thing that makes this site a little different is they offer their own rewards program called Orbitz Rewards. You can earn Orbucks when you book hotels, flights, and vacation packages through Orbitz. However, you can only redeem Orbucks for hotels.




  • Orbitz Rewards lets you earn Orbucks that can be applied to hotel bookings

  • 24-hour cancellation policy

  • Low Price Guarantee: If you find a lower price for your flight on another website within 24 hours, Orbitz will refund the difference


  • Orbitz often charges a booking fee. Look out for the fee on your trip summary page before finalizing your purchase

【Coupons & Discounts】

(1). Sign up & get 10% off select hotels and resorts.

(2). Flight deals under $199.

(3). Rewards members can earn Orbucks.

【Cashback from Extrabux】Up to 5% Super Cash Back

7. Hotwire

Hotwire is a popular OTA that has been around for almost 20 years.When searching for your flight, you might come across a Hot Rate flight. These are flights in which the exact times, number of stops, and carriers are hidden until after your purchase is complete.

Hotwire can offer a great deal when booking a hotel along with your flight. Many times during the booking process, you’ll see pop-ups or prompts advertising great savings when booking a hotel at the same time.




  • Package deals that include a hotel stay can save money

  • 24-hour cancellation policy

  • Low Price Guarantee


  • Hotwire can sometimes charge a booking fee

  • Hot Rate flights don’t always offer huge savings

【Coupons & Discounts】Unlock an extra $10 off your next Hot Rate® Hotel when you sign up for email.

【Cashback from Extrabux】Up to 4% Super Cash Back

8. StudentUniverse

StudentUniverse is the world’s leading travel booking site for students and youth under 26. They offer exclusive pricing on flights from over 220 airlines worldwide including United Airlines, Air China, British Airways, Air Canada and more. On top of their unique pricing, they offer promo codes around peak booking times for students (study abroad, spring break, beginning/end of semester, summer, etc.).




  • Benefits for students

  • No fees to use platform

  • Offers a few discounts that a customer should know about.

  • Business model is broken down as follows to maximize savings


  • No airfare rate guarantees

  • Discount booking service is best utilized in a group format. 

  • StudentUniverse utilizes a verification technology that ensures an individual maintains a student status and is eligible for the discounts.

【Coupons & Discounts】

(1). Spring sale: save an extra $20 on all flights with promo code SPRING21.

(2). $75 discount on flight departing from the US and arriving in Dubai with promo code DUBAI.

(3). Save $20  on flight departing from China (including Hong Kong), South Korea, Japan, Vietnam or India and arriving in the United States or Canada with promo code NEW2NA

(4). $20 discount on international flight departing from the United States or Canada and arriving anywhere EXCEPT the United States, Canada, Mexico or the Caribbean with promo code NEWFOR20.

【Cashback from Extrabux】$3 Super Cash Back

9. OneTravel

OneTravel provides you with the tools you need to book cheap flights and cheap tickets. Their site promises to find you the best flight deals around and their expert travel advice ensures that you're getting the best airline tickets, car rentals, and hotel deals possible. 

OneTravel borrows its interface from Google Flights’ calendar search feature. When you enter your departure and destination airports, the dates field brings up a calendar with prices pre-populated. This is a helpful feature for immediately honing in on the travel dates with the best prices if and when your dates are flexible.




  • The calendar organization that’s hard to find on other flight booking sites is the most ideal format if you’re flexible on travel dates


  • OneTravel charges a steep service fee of up to $35 per ticket

  • Many highlighted itineraries, upon closer inspection, include an extra stop

【Coupons & Discounts】

(1). Sign up & save up to $15 with a promo code.

(2). Earn 7X/ $1 in Rewards with OneTravel Credit Card.

【Cashback from Extrabux】Up to $12.5 Super Cash Back

10. Momondo

Part of the Kayak network, Danish-based metasearch site Momondo is a great option for international flight searches, thanks to its inclusion of lesser-known regional budget airlines combined with other carriers. Momondo is our top pick when it comes to finding the cheapest airfares, especially for those looking for last-minute tickets. Since it premiered in 2006 as a pure aggregator, it has transformed into a fully-fledged OTA with a crisp and crystal clear website that allows you to view price trends for various travel dates. The site features a price tracker, robust filtering options, and a nifty fare calendar graph shows average prices on multiple days.




  • Great price tracking tools;provides shortcuts to your choice of the cheapest, quickest, or best overall results

  • Fare alerts

  • “Flight insight” data feature for your chosen city pair (the cheapest and most expensive fares, pegged to season, airline, time of departure, day of the week, and more)

  • Shows price for same flight from multiple OTAs/airline sites


  • Mix and Match fares require you to make 2 separate reservations. 

  • Accasionally not the cheapest on price (but usually by only 10% or less)

  • It canvasses so many international OTAs and discounters (a positive) that you do need to do due diligence on unfamiliar airfare-selling outlets before purchasing

【Coupons & Discounts】Click here to check out deals.

【Cashback from Extrabux】Cashback temporarily unavailable

11. Google Flights

Google Flights is a powerful, simple metasearch site that comes free of ads and distractions. After you enter your departure and arrival airports, the calendar pre-populates with prices so you can target dates with lower fares (OneTravel uses this tool). Once you have your results, you can track fares on your selected dates and receive updates by email. You can also view fares over various dates using the “Price Graph,” which shows you a bar graph that makes it easy to see when the lowest fares are available.




  • Price Graph shows you the pricing trends for your route and allows you to see what days might be cheaper to fly

  • Price tracking will send you an email when your flight’s price increases or decreases

  • Lots of filtering options so you can customize your search


  • Since this search engine is so powerful with lots of options, it could get complicated for a novice traveler

【Coupons & Discounts】temporarily unavailable

【Cashback from Extrabux】Cashback temporarily unavailable

12. Skyscanner

Skyscanner is a global travel meta search engine enjoying phenomenal growth worldwide. Millions visitors every month come to them for unbiased, comprehensive and free flights, hotel and car rental search.Skyscanner set the standard for metasearch sites by including route combinations from lesser-known carriers and a wide range of filters such as price, flight duration, connections, and, most recently, CO2 emissions. 

Skyscanner is an excellent site for those looking for the best flight deals. It boasts a fantastic search feature and filters that allow you to compare prices from almost every airline. Skyscanner casts a wide net, so you’ll often see very cheap fares from booking sites you’ve never heard of.




  • Among the best at the lowest fares;

  • Shows price for the same flight from multiple OTAs/airline sites

  • Can provide a whole month of fares on a calendar for flexible dates

  • Shows which airline actually operates a codeshare; fare alerts

  • Vacation packages

  • Skyscanner wins major points for being the first and only search site to list flights by CO2 emissions


  • Not quite as strong on last-minute flights; doesn’t include baggage fees; clutters organic results with sponsored results (though it marks these clearly)

  • It can clutter organic results with sponsored results

  • Not ideal for last-minute flights

  • Some users may feel uneasy over the fact that Skyscanner may direct you to book on a site you’ve never heard of, and can sometimes seem shady

【Coupons & Discounts】Daily flight deals - up to 55% off the average price.

【Cashback from Extrabux】Cashback temporarily unavailable

13. Kayak

Often imitated and frequently duplicated, Kayak was a game-changer when it launched back in the mid-2000s. And it’s still one of the most powerful metasearch tools available. You can also set up fares alerts to track prices over time.  Its explore map provides a quick glance at current deals to destinations around the globe

Kayak compares prices from many different websites all in a single spot so you can easily see where the cheapest options are. Most of the time, you’ll end up clicking through to a different site to complete your booking.




  • Outstanding filtering tools

  • Lowest prices

  • Kayak hacker fares

  • Price tracker to keep an eye on flight prices

  • It comes with clear labels for more transparency


  • Kayak’s fares aren’t always up-to-date, and it’s not unusual to click on a great fare only to find that it expired hours ago

  • Flexible dates feature is comparatively basic

【Coupons & Discounts】Receve $20 off on an at-homet test and receive resuts within 24-72 hours with code KAYAK.

【Cashback from Extrabux】Cashback temporarily unavailable

What is the best website to use to book the cheapest flights?

There is no single website that has the cheapest flights all of the time. Most of the travel search engines and online travel agencies all have similar pricing, however you can find some really nice deals when looking at opaque bookings or vacation packages.

2021-03-04 18:32278