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Guides ยท September 2026

How to Book Cheap Flights in 2025: 7 Strategies That Actually Work

Stop overpaying for airfare. These 7 strategies will help you find cheaper flights in 2025, backed by real data and expert insights.

5 min read Guides

1. Book at the Right Time

Timing is everything. For domestic flights, the sweet spot is 1-3 months before departure. For international, aim for 2-8 months. According to a 2024 study by CheapAir, the average best time to book domestic flights is 54 days in advance, saving travelers up to 20% compared to last-minute bookings. Avoid booking on weekends; Tuesday and Wednesday afternoons often have lower fares. Set price alerts on Google Flights to monitor changes.

2. Use the Best Flight Search Tools

Don't rely on a single search engine. Use Google Flights for its calendar view and price graph, Skyscanner for its 'Everywhere' search, and Momondo for its comprehensive database. For error fares, follow sites like Secret Flying and Scott's Cheap Flights. These tools can uncover deals you won't find elsewhere. Pro tip: Always search in incognito mode to avoid price tracking based on your browsing history.

3. Be Flexible with Dates and Airports

Flexibility can save you hundreds. Flying on Tuesday, Wednesday, or Saturday is often cheaper than Friday or Sunday. If you're in a major city, check alternate airports. For example, flying into Oakland instead of San Francisco can save $50-$100. Use the 'flexible dates' option on search engines to see the cheapest days. A 2025 analysis by Expedia found that travelers who shifted their departure by one day saved an average of $85.

4. Leverage Credit Card Points and Miles

Travel credit cards can turn everyday spending into free flights. Cards like the Chase Sapphire Preferred offer 3x points on dining and 2x on travel, which can be transferred to airline partners like United and Southwest. The Capital One Venture Rewards gives 2x miles on every purchase. Sign-up bonuses can be worth $500-$1,000 in travel. Just be sure to pay off your balance monthly to avoid interest.

5. Consider Budget Airlines and Hidden City Ticketing

Budget airlines like Spirit, Frontier, and Ryanair offer low base fares, but watch out for fees. Pack light and bring your own snacks. Hidden city ticketing (booking a multi-stop flight and getting off at the layover) can save money, but it's risky: you can't check bags, and airlines may penalize you. Use it sparingly and only for one-way bookings.

6. Set Fare Alerts and Be Ready to Book

When you find a good deal, book it. Fares fluctuate quickly. Set alerts on Google Flights, Kayak, and Skyscanner. According to a 2025 report by Hopper, airfare prices are expected to rise 5% this year, so locking in early is smart. If you're unsure, most airlines offer a 24-hour free cancellation window, so you can book and reconsider.

7. Save on Baggage and Seats

Baggage fees can add up fast. For domestic flights, $30-$35 per checked bag is common. If you're checking a bag, it might be cheaper to fly a full-service airline like Delta or American, which includes a carry-on and sometimes a checked bag. Avoid seat selection fees by letting the airline assign seats for free. Join loyalty programs for perks like free bags and priority boarding.