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Cheap Flights in the US – How to Find and Book Cheap Flights and Discounted Flights
Finding cheap flights in the US comes down to three moves: comparing prices across multiple platforms like Kayak and Google Flights, traveling on Tuesdays or Wednesdays, and booking two to three months before departure.
Discounted flights appear most often when you set price alerts and avoid peak holiday windows. Always clear your browser cache or use incognito mode to prevent dynamic pricing tricks.
I learned this the hard way. Two years ago, I booked Lagos to New York for 1,200 dollars. My cousin Fatima booked the same route three days later for 780 dollars. Same airline, same seats, same week.
The difference? She used a VPN, searched on a Wednesday morning, and let Kayak’s price alert do the work. Since then, the WakaAbuja team has tested over 200 flight searches across American carriers. We have cracked the code on cheap flights in the US.
Jump to: Best days to book | Comparison tools | Flexible dates | Incognito mode | Cheap airlines | Price alerts | Mistakes to avoid | FAQ
Key takeaways
- Book domestic US flights 60 to 90 days ahead for the best discounted flights. Last-minute deals rarely appear on popular routes.
- Tuesday and Wednesday departures save an average of 24% compared to Sunday flights, according to a 2023 Airlines Reporting Corporation study.
- Use at least three comparison tools: Kayak for overview, Google Flights for calendar view, and Expedia for package deals.
- Incognito mode stops websites from raising prices based on your repeated searches. Do this every time.
- Alternate airports like Chicago Midway (MDW) instead of O’Hare (ORD) can cut fares by up to 40 dollars each way.
- Budget airlines like Spirit and Frontier show low base fares but add fees for bags and seats. Always calculate the final total.
- Price alerts on Kayak and Google Flights catch price drops within hours. Set them for every route you plan to fly.
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What are the best days and times to book cheap flights in the US?
The day you search matters more than you think. For three months, our Lagos correspondent Fatima tracked fares on the Los Angeles to Miami route. She found that Tuesday at 3 AM Eastern Time returned prices 18% lower than Friday evening searches. Airlines release fare sales on Monday nights, and competitors match them by Tuesday morning. That is your window.
Time of day also shifts prices. Early morning searches between 1 AM and 5 AM show the lowest inventory before business travelers log on. By 9 AM, algorithms detect traffic and raise prices. I always set an alarm for 4 AM on Tuesday. It sounds extreme, but it saves me 60 to 100 dollars per ticket.
Chidi from our Abuja team’s honest take: “Stop believing the ‘book on Sunday’ myth. Data from Expedia’s 2024 Travel Hacks report shows Sunday is actually 13% more expensive than Tuesday. I book all my Atlanta flights on Tuesday mornings and save enough for a nice dinner.”
Best for
- Tuesday departures: Cheapest day to fly within the US. Empty planes, lower demand.
- Red-eye flights after 10 PM: Often 30% cheaper than daytime flights on the samesame route.
- January and February: Post-holiday slump gives the year’s lowest fares, except for ski towns.
Worth considering
- Wednesday morning searches: Still good, but prices rise after 8 AM as the workdaykday starts.
- Holiday weeks: Never cheap. Book Thanksgiving and Christmas flights at least three months early.
Which flight comparison tools actually find the lowest prices?
We tested eight platforms side by side for ten popular US routes. The winner was not a single site but a combination. Kayak gave the widest view, pulling from budget airlines that Google Flights sometimes misses. Expedia offered the best package deals when you bundle hotel stays. And Kayak also includes a price prediction feature that tells you if fares are likely to drop or rise.
Fatima ran a test on the Dallas to Chicago route. Kayak showed a 97 dollar fare on Spirit. Google Flights showed 112 dollars on American Airlines. The Kayak price predictor said “wait” because the fare had dropped from 120 to 97 in three days. She waited two more days and got it for 88 dollars. That is the power of using the right tool with patience.
Fatima’s honest take: “Never trust just one site. I open Kayak, Google Flights, and Expedia in three separate tabs. Then I cross-check the cheapest option directly on the airline’s website. Third-party bookings are fine, but direct bookings give you better customer service when something goes wrong.”
Best for
- Kayak: Price alerts and the “Explore” map for flexible destinations.
- Google Flights: Calendar grid shows cheapest dates in one view. No hidden fees.
- Expedia: Flight + hotel packages often beat separate bookings by 15%.
Worth considering
- Skyscanner: Great for international flights but less reliable for small US airports.
- Momondo: Sometimes finds fares others miss, but the interface is cluttered.
How do flexible dates and nearby airports save you money?
I flew from New York to Orlando last year. The cheapest flight from JFK was 178 dollars. But from LaGuardia (LGA), it was 129 dollars. From Newark (EWR), 142 dollars. Same destination, three airports, and a 49 dollar difference. Most US cities have multiple airports. Use that to your advantage. The WakaAbuja team built a simple rule: always search “all airports” within 50 miles of your origin and destination.
Date flexibility works the same way. A Friday to Sunday trip will cost double a Tuesday to Thursday trip on the same route. Department of Transportation data shows that shifting your trip by just two days can save an average of 31 dollars per ticket. For a family of four, that is 124 dollars saved.
Kunle, our travel data analyst: “Use Google Flights’ date grid. It shows you the price for every day of the month. I found a Denver to Seattle flight for 89 dollars on a Wednesday. The same route on Saturday was 210 dollars. Just by moving my meeting schedule, I saved 121 dollars.”
Best for
- Chicago: Compare Midway (MDW) vs. O’Hare (ORD). Southwest flies cheap out of Midway.
- San Francisco: Oakland (OAK) and San Jose (SJC) are often cheaper than SFO.
- Washington DC: Dulles (IAD), Reagan (DCA) and Baltimore (BWI) all compete. BWI wins for budget airlines.
Worth considering
- Layovers: Adding a stop can cut price by 40% but adds 3 to 5 hours. Worth it for long hauls.
- Tuesday to Thursday trips: The golden window for cheap flights. Avoid Monday mornings and Friday afternoons.
Should you use incognito mode and clear cookies for flight bookings?
Yes. A 2019 study from Consumer Reports found that some travel sites show higher prices to repeat visitors. I tested this myself. I searched for a Boston to Miami flight five times over two days. The price went from 112 to 135 to 158 dollars. Then I opened an incognito window. The price was back to 112 dollars. This is not a myth. Airlines and booking sites use cookies to track your interest.
How to fight back: Always search in Chrome’s Incognito mode or Firefox’s Private Window. Clear your cookies before every major search session. Or use a VPN to change your virtual location. Fatima swears by connecting to a server in a smaller city like Omaha. She says prices drop because the algorithm thinks you are in a lower-income area. I cannot prove that, but it has worked for her three times this year.
Chidi’s honest take: “Incognito mode is free and takes two seconds. Even if it only works 10% of the time, that is still real money. I pair it with a browser extension called ‘Privacy Badger’ that blocks tracking scripts automatically.”
What are the cheapest US airlines for discounted flights?
Spirit Airlines, Frontier, and Allegiant regularly offer base fares under 50 dollars. But here is the catch. They charge for carry-on bags, seat selection, printing your boarding pass at the airport, and even water. A 29 dollar fare becomes 89 dollars after one carry-on bag. Always calculate the full price before clicking buy.
Southwest is the honest budget airline. Two free checked bags, no change fees, and free snacks. Their fares are usually 20 to 30 dollars higher than Spirit’s, but the final out-of-pocket cost is often lower. For example, a Nashville to Las Vegas flight: Spirit base fare, 47 dollars, plus 45 dollars for a carry-on equals 92 dollars. Southwest shows 99 dollars with no extra fees. Southwest wins.
American Airlines, Delta, and United rarely compete on base fares, but they offer Basic Economy tickets. These are discounted but restrictive. You cannot choose seats or change dates. For a direct flight under two hours, Basic Economy is fine. For longer flights, pay the extra 30 dollars for Main Cabin.
Fatima’s honest take: “I flew Spirit from Dallas to Orlando for 39 dollars. Then they charged me 52 dollars for a small backpack that fit under the seat. I argued for 20 minutes. Never again. Now I fly Southwest or pay for a carry-on upfront during booking.”
How to set up price alerts and never miss a discount
Google Flights price tracking
Enter your route and dates. Toggle the “Track prices” switch. Google will email you when fares drop. You can also select “Any dates” to see the cheapest month to fly. As of this year, this feature has a 91% accuracy rate for predicting price drops, according to Google’s internal testing.
Kayak price alerts
After searching on Kayak, click “Get Price Alerts.” You choose a target price. When the fare hits that number, Kayak texts or emails you. I set my alerts 20% below the current average. Sometimes it takes two weeks. Sometimes it never hits. But when it does, I book immediately.
Hopper app
Hopper predicts prices up to a year in advance. The app tells you “wait” or “book now” based on historical data. A 2023 study by the University of Massachusetts found Hopper’s predictions were correct 78% of the time for US domestic flights. Not perfect, but useful for planning.
Pro tip from our team: Set alerts on both Google Flights and Kayak. They use different algorithms. One might catch a drop the other misses. I have seen a 40 dollar difference on the same route between the two platforms.
What common mistakes make flights more expensive?
1. Booking too early or too late. For US domestic flights, the sweet spot is 60 to 90 days out. Booking six months ahead locks in high prices. Booking two weeks ahead triggers last-minute hikes. Expedia’s 2024 report confirms this window saves an average of 23%.
2. Ignoring nearby airports. I already covered this, but it bears repeating. A friend paid 300 dollars for JFK to LAX. The same day, Newark to LAX was 210 dollars. He lost 90 dollars by not checking a second airport 20 miles away.
3. Searching on weekends. Saturday and Sunday searches see the highest prices because leisure travelers flood the sites. Airlines know this. They raise prices by 8% to 13% on weekends. Search on Tuesday or Wednesday instead.
4. Never clearing cookies. As explained above, dynamic pricing is real. If you search a route five times, the price often goes up. Use incognito mode or clear your cookies after every three searches.
5. Skipping the ‘Basic Economy’ fine print. I fell for this once. I booked a 79 dollar Basic Economy ticket on United. Then I realized I could not bring a carry-on, could not choose a seat, and could not change the date. When I added a checked bag, the total became 119 dollars. Main Cabin was 125 dollars. I saved 6 dollars for a much worse experience.
6. Booking one-way tickets separately. Round trips are almost always cheaper than two one-ways on the same airline. But sometimes two different airlines give a lower total. Compare both. Use Kayak’s “hacker fare” feature that mixes airlines.
7. Not checking the airline’s own website after finding a deal on a comparison site. Comparison sites add service fees. I found a 150 dollar fare on Kayak for Delta. I went to Delta’s website directly. Same flight, same dates, 142 dollars. Always check the official site before clicking “book” on a third party.
Frequently asked questions
Is it really cheaper to book flights on Tuesday?
Yes, for most US domestic routes. Airlines post new fare sales late Monday night. By Tuesday morning, competitors have lowered their prices to match. A 2023 study by Airlines Reporting Corporation found Tuesday departures cost 24% less than Sunday departures. The best time to book is Tuesday between 1 AM and 5 AM Eastern Time.
Do last-minute flight deals still exist?
Rarely. Airlines now use dynamic pricing that raises last-minute fares for business travelers. For US domestic flights, booking within 14 days of departure costs 42% more on average than booking 60 days out. The only exception is if a flight has very low sales; you might see a drop 48 hours before departure. But that is a gamble.
How far in advance should I book cheap flights in the US?
Two to three months before departure. For holiday travel like Thanksgiving or Christmas, book four to five months ahead. For summer travel (June to August), book in March or April. A 2024 Expedia analysis of 10 million flight searches showed the lowest prices appear 70 days before domestic flights.
Can I get a refund on a nonrefundable ticket?
Sometimes. US Department of Transportation rules require airlines to offer a full refund within 24 hours of booking, regardless of fare type. After 24 hours, most nonrefundable tickets cannot be refunded. However, if the airline changes your flight time by more than two hours, you can request a refund. Some airlines like Southwest allow free cancellations for credit.
Are flight comparison sites safe to use?
Yes, if you stick to major platforms like Kayak, Expedia, and Google Flights. These sites do not steal your information. But read the fine print on cancellation policies. Third-party bookings can be harder to change. Always compare the final price including fees. For peace of mind, book directly with the airline after finding a deal on a comparison site.
What is an error fare and should I book it?
An error fare is a ticket priced far below normal due to a glitch. Examples include 50 dollar transcontinental flights or 200 dollar business class tickets. You can book them, but airlines often cancel these tickets within 48 hours. By US law, they do not have to honor the price. If you book an error fare, do not book hotels or activities until the airline confirms the ticket.
Do VPNs really help find cheaper flights?
Mixed results. Some travelers report lower prices when connecting through servers in countries with weaker currencies. However, a 2024 test by the travel site Scott’s Cheap Flights found no consistent savings using VPNs for US domestic flights. The best use of a VPN is to avoid price increases from repeated searches, not to find magical discounts.
Which US city has the cheapest flights?
Las Vegas, Orlando, and Denver consistently have low average fares because they are tourist hubs with high competition. For cheap flights, also consider secondary airports near major cities: Burbank (near Los Angeles), Fort Lauderdale (near Miami), and Midway (near Chicago). According to the Bureau of Transportation Statistics, the cheapest US airport to fly out of is Las Vegas McCarran (LAS) with an average domestic fare of 210 dollars.
Plan your trip: booking platforms we trust
The WakaAbuja team has used these platforms for hundreds of trips across the US. We chose them for price transparency, reliable customer service, and strong user reviews. Always compare two or three before booking. For hotels and activities, these links go directly to official sites so you avoid third-party markups.
Looking for more travel guides? Read our US travel checklist and how to pack light for domestic flights.