How to find cheap flights is partly about search tactics and partly about knowing the rules that protect you after you buy. Fares change constantly, so no tip guarantees a low price. What you can control is how flexible you are, how well you compare and how carefully you read the total cost.
This guide gives twelve tips for how to find cheap flights and explains what the U.S. Department of Transportation says about ticket pricing, the 24-hour rule and refunds. The search tactics are our own suggestions, not official guidance. Rules change, so confirm them with your airline before you book. This is general information, not legal advice.
Key Takeaways
Key Takeaways
- How to find cheap flights starts with comparing the total price. The Department of Transportation says advertised airfares must include government taxes and fees and mandatory carrier surcharges.
- For tickets bought at least seven days before departure, airlines must either allow a full refund within 24 hours or hold the fare for 24 hours, and the airline chooses which. The rule does not cover tickets bought through third-party agents.
- If an airline cancels or significantly changes your flight and you decline the alternatives, you are due a refund, according to the Department of Transportation.
- We found no official source that names a best day or hour to buy, so treat those claims as unproven.
- Flexible dates and airports, and a close look at baggage fees, are practical tips from us and not official rules.
What Makes a Flight Cheap?
A cheap flight is one where the total cost for your trip is low, not just the headline fare. That total can include checked bags, seat selection, airport transfers and the cost of getting to a farther airport.
Airfares can change from hour to hour, and the sources we read do not explain how airlines set them. So the honest answer to how to find cheap flights is to compare widely, stay flexible and understand the fees. Our guide on how to plan an international trip shows where flights fit into the whole plan.
What the Rules Say About Prices
Before the tips, here is what the Department of Transportation says about buying tickets. These are official statements, and they apply to the airline’s own pricing.
- Any advertised airfare, on a website, in an email or during booking, must include all government taxes and fees and mandatory carrier surcharges.
- Airlines and ticket agents may itemize taxes and fees, but the total price must be displayed more prominently than the breakdown.
- Optional services such as seat selection, Wi-Fi or baggage cannot be preselected. You must take an affirmative action to add them.
- Airlines must link to baggage and optional fee information from their homepage and from the first fare-quote screen.
12 Tips on How to Find Cheap Flights
These tips on how to find cheap flights are author suggestions. Fares vary by route and season, and none is guaranteed to work.
1. Compare more than one source
Check at least two search tools and the airline’s own site. Different tools show different fares, and an airline site may list its lowest options. That is the core of how to find cheap flights.
2. Be flexible with dates
Moving a trip by a day or two can change the fare. This is one of the simplest tips on how to find cheap flights.
3. Check nearby airports
A farther airport may offer lower fares. Add the cost and time of getting there before you decide. Airports are a lever in how to find cheap flights.
4. Avoid peak travel days
Traveling outside those windows can help, though the sources we read do not give figures.
5. Set price alerts
Many sites and apps send an email when a fare changes. Alerts save you from checking every day, which makes how to find cheap flights less of a daily chore.
6. Count the bag fees
A low fare with a bag fee may cost more than a higher fare that includes a bag. Use the airline’s baggage page, which the DOT says must be linked from its homepage and first fare screen. Our guide on airport carry on rules can help you pack light.
7. Weigh nonstop against connections
Connections are a trade-off in how to find cheap flights. They can cost less, but they add time and risk. A missed connection on separate tickets may not be protected, which is an author caution.
8. Consider flying one way on different airlines
Sometimes two one-way tickets cost less than a round trip. Check the cancellation terms of each, since this tactic for how to find cheap flights can complicate changes.
9. Book directly when you want simpler refunds
The Department of Transportation says the merchant of record, the entity on your card statement, is responsible for airfare refunds. The 24-hour rule also does not cover tickets bought through third-party agents.
10. Use the 24-hour rule as a safety net
If the airline offers the refund option and you booked at least seven days before departure, you can cancel within 24 hours for a full refund. Check which option the airline uses before you buy.
11. Watch for fare restrictions
The cheapest fares may be nonrefundable or limit changes and seat choice, which is a hidden cost in how to find cheap flights. Read the fare rules, since the DOT says a refund is generally not due if you bought a nonrefundable ticket and the flight operated as scheduled.
12. Buy when the price fits your budget
The last step in how to find cheap flights is deciding when to stop looking. If a fare fits your budget and you can cancel within 24 hours, buying may save stress.
When Are You Owed a Refund?
Booking is easier when you know your rights. The Department of Transportation’s refund page says you are due a refund if the airline cancels your flight for any reason and you decline to travel or accept credits. You are also due a refund for a significant delay or change if you decline the new options.
Its examples include a departure or arrival three or more hours different on a domestic flight, or six or more hours on an international one, a changed airport, added connections and an involuntary downgrade to a lower cabin. It says refunds on credit cards are due within seven business days. Other payment methods are due within 20 days.
A refund is generally not owed if you took the changed flight, bought a nonrefundable ticket and the flight operated as scheduled, or were unhappy with the service. Airlines may offer credits or vouchers instead, but they must tell you that you are entitled to a refund, and credits must be valid for at least five years.
The rule requiring automatic refunds was announced by the DOT in April 2024. Knowing these rules is part of how to find cheap flights without taking on hidden risk.
Fees That Can Be Refunded
The DOT says fees for optional services such as bags, seat selection and Wi-Fi are refundable if the service was not provided through no fault of yours. A baggage fee is refundable if a bag is lost or significantly delayed and you file a mishandled baggage report. For fees, you must request the refund from the airline.
Common Myths About Cheap Flights
Several claims circulate about how to find cheap flights, including that one weekday is always cheapest or that clearing browser cookies lowers prices. We did not find an official source supporting these, so we treat them as unproven. If a tip matters to you, test it by comparing prices yourself.
A Simple Process for Booking
Follow this author checklist for how to find cheap flights when you want to book:
- Decide your dates, airports and bag needs.
- Compare at least two search tools and the airline site.
- Add bag and seat costs to each fare.
- Check refund and change terms.
- Set an alert if you are not ready to buy.
- Book, then confirm the receipt and cancellation window.
Mistakes to Avoid
These are common errors in how to find cheap flights.
- Comparing only the headline fare and ignoring bag fees.
- Booking with a name that does not match your passport or ID.
- Forgetting that third-party bookings may not get the 24-hour rule.
- Buying a nonrefundable fare when your plans are uncertain.
For help with documents, see our travel documents checklist. If you are planning a road trip instead of a flight, read our guide on how to plan a road trip on a budget.
Who Needs Extra Care
How to find cheap flights looks different if you have special needs. Travelers with tight schedules, medical needs, mobility needs or small children should avoid the tightest connections and the cheapest restricted fares. The DOT page notes certain accessibility-related changes for passengers with disabilities. Ask the airline about your needs before you buy.
FAQs
What is the best way to find cheap flights?
Compare several sources, stay flexible with dates and airports, and look at the total cost with bags. No tip guarantees the lowest fare.
Can I cancel a flight within 24 hours?
For tickets bought at least seven days before departure, airlines must either allow a full refund within 24 hours or hold the fare for 24 hours. Check which option the airline offers. The rule does not cover tickets bought through third-party agents.
Do airlines have to refund canceled flights?
The Department of Transportation says you are due a refund if the airline cancels and you decline to travel or accept credits.
Is there a best day to buy flights?
We found no official source naming one, so treat such claims as unproven.
What is the cheapest site to find flights?
No single site is always cheapest, and no official source ranks them. Compare several, including airline sites, and check the total cost with bags.
Conclusion
How to find cheap flights means comparing the total cost, staying flexible on dates and airports, watching bag fees and knowing your rights. The 24-hour rule and the Department of Transportation refund rules can protect you if plans change.
The evidence has limits. The rules come from the Department of Transportation, and the search tips are our own suggestions. Compare two or three sources next time you book, add up the extras and keep your confirmation handy.
If a fare looks too good to be true, read the terms again. A bargain with strict rules can cost more than a fair fare you can change, so choose the option that matches how sure you are of your plans.
