I was at the airport desk at eleven on a Tuesday night, watching the price I’d been staring at all afternoon tick upward for the third time. The agent didn’t even look up. That was the night I stopped treating flight prices as a fixed thing, like the rent, and started treating them the way I treat recipes: worth testing, adjusting, and sometimes walking away from.
What I’ve learned is that the cheapest airfare is rarely a mystery. It’s a series of small, unglamorous checks that most people never make. I’ve collected twenty-one of them, gathered from years of my own bookings and from fellow travelers who’ve clearly been stung before. None of them require genius. Most require two minutes and a second tab.
Start with the search itself
1. Compare prices in different currencies. This one sounds like a trick a banker would use, and it is. When I book Wizz Air out of Sofia, the same flight can come out to 123 leva when paid in the local currency โ the equivalent of $74 โ versus $82 in US dollars. Not a fortune, but it’s money that never left the trip. I’ve found the same thing on Norwegian Airlines from the US to Sweden, where paying in Norwegian kroner comes out lower. My routine is simple: check which currency gives the lowest price after conversion, then buy with a card that doesn’t charge foreign transaction fees.
2. Search in incognito mode. It’s the most repeated tip on the internet for a reason. If you search the same route five times in a normal window, the price tends to climb with every refresh. Incognito or guest mode keeps those search cookies from stacking up. The flip side of the same habit: the more flexible you are about dates, connections, and times, the more room there is to find a genuinely low fare. Weekday rates are usually where that room is.
3. Book flights separately. I almost always check one-way prices before I commit to a return. Sometimes two one-ways cost less than the round trip, especially on budget airlines where pre-paid extras โ luggage, meals, seats โ price out differently in another currency. The catch: keep a printout or a screenshot of your return leg. At check-in they do ask to see proof you’re coming back.
4. Hunt for error fares. The first time I heard one was from a stranger in a Manila hostel, who told me he was flying to Saudi Arabia the next day for $2. Yes, two dollars. An error fare is simply an airline that accidentally publishes a price too low. Usually they honor the booking because it’s their mistake; occasionally they cancel them all. I track them through alert services like Secret Flying and Fly4Free, and by searching #errorfare on social media. The window is short โ often around half an hour before the airline fixes it โ so speed matters more than strategy here.
5. Use a miles card, and redeem it on long-haul. The signup bonuses on frequent flyer credit cards are the fastest way to build a balance, and the first year is usually fee-free. Where people lose the value is redeeming for short hops. Miles are worth the most on long-haul flights, especially in business or first class. Awards are usually one-way, which makes them perfect for an open-jaw trip โ into one city, out of another โ and you can mix and match alliances to piece the segments together.
6. Check the airline’s site too, not just the aggregators. Aggregators are good at pointing you in a direction, but every so often the airline’s own site is cheaper, or shows extra flight options and different baggage promotions. I clear my cache, search in incognito, then go direct before I book.
7. Let a deal service do the watching. I keep an eye on Going (formerly Scott’s Cheap Flights), which emails curated international deals. There’s a free tier and a paid one with more personalized alerts. When an email lands with a route I actually want, I go to Google Flights, check the dates, and book there if it makes sense. It only works if you’re flexible on where and when. One deal that stuck with me from this: a $400 round trip from Austin to Europe, found more than once.
8. Turn on price alerts. Sites like Skyscanner and Hopper watch prices for you. You enter your email, click track, and get updates when the number moves. It works in both directions โ if you’ve already booked and the price drops further, some of these services let you capture the difference. Just from alerts I’ve saved $200 on a Denver to Costa Rica flight, and over $300 on Houston to Rome. I don’t claim those exact numbers will be yours, but the mechanism is real.
9. Look at the whole month, not one date. Prices swing day to day, so picking the specific date first is usually a mistake. Skyscanner has a month view that shows the price across every day of a month, and Google Flights loads a price right into its date picker. Enter the route, and the cheapest days show themselves. Flexibility is the whole trick.
10. Play travel roulette. In Google Flights, enter your home airport and your dates, then leave the destination blank. Search does the work and suggests everywhere you could go for those dates. It’s the best way I know to discover a place I never would have booked. If you do have a destination in mind, the fare calendar gives you a peek at the cheapest days to actually fly. Shifting by a few days โ or flying off season โ is where hundreds of dollars live.
11. Pay for onward flights in home currency. If your currency is strong โ dollars, euros, pounds โ you can sometimes get a better deal from a local travel agent by paying cash. It works best in places where withdrawing or exchanging foreign money is a hassle. Don’t exchange abroad to do this; you’ll lose on the rate. Check the rules on how much cash you can carry, and travel with the sense that a lot of money in your pocket is a small risk you’re choosing to take.
Know what’s actually flying
12. Read the airport’s Wikipedia page. This is my favorite unglamorous tip. The big search engines list the popular routes, but smaller and newer airlines โ especially from remote airports โ often aren’t in their results yet. The Wikipedia page for a departure airport usually lists every airline and route that operates from it. When one of those listings catches my eye, I go straight to the airline’s own site for pricing.
13. Widen the search radius. Third-party search engines like Kiwi let you browse airports within a geographical radius instead of one fixed city. Start with your preferred airports, and if alternatives are available you’ll see an option to expand the search to a 250 km radius, with a slider to make it wider or narrower. I’ve used it twice that mattered: in Vietnam, I found much cheaper fares to Thailand departing from Haiphong, a city two hours by bus from Hanoi that has an international airport I didn’t know existed. And for a trip to Australia, I found a cheaper fare arriving at the Gold Coast instead of Brisbane, then finished with a quick train ride. If you’re willing to travel overland to a different airport, this is where the savings are.
14. Always search for one person. I travel alone most of the time, but when I do book with someone, I search for one adult in two separate tabs instead of two in one. The combined price is often a premium. Once both e-tickets are in hand, check in on the airline’s page and select seats so you’re still sitting together.
15. Fly in and out of different airports. For a popular destination, the closest airport is often the most expensive one in the country โ for arrival, for departure, or both. I’ll fly into one city and home from another if the math works. One example from my notes: an EasyJet flight from Prague to London Stansted on a Friday in late 2018 ran 920 Kฤ (โฌ35, $40), while the return from London a week later was 4119 Kฤ (โฌ159, $182). But the same route from Edinburgh to Prague that week was ยฃ67 (โฌ76, $87) โ less than half the London price. Edinburgh is 330 miles from London, so factor in the trip over, and a low-cost flight between the two cities can be as low as ยฃ22 (โฌ25, $28). You end up saving money and seeing another city in the process.
16. Subscribe to airline newsletters. Budget carriers hold sales almost every week. From a base like Singapore, one-way fares to Malaysia or Thailand can dip to $25, and I regularly see return flights to places like Hong Kong and Macau in the $80 to $130 range. The newsletters are how I see those before they’re gone. It’s worth adding full-service carriers to the list too, and keeping deal sites like Secret Flying and TravelFree near the top of your feed.
17. Compare a connecting flight against separate bookings. When I’m looking at a long route โ say Manila to Cape Town โ I first check the direct or single-ticket price. Then I check the connection, and then I price the two legs separately. The cheapest single tickets I’ve found connect via Singapore or Bangkok, but booking the legs separately usually costs less. In one case the through ticket was $850 or more with a layover over 10 hours. The split I actually booked ran about $50 on a low-cost carrier to Singapore, then about $500 onward to Cape Town โ roughly $600 total, with a four-hour layover I was happy to control.
18. Start with Tuesdays โ and bundle regional flights. Weekday fares are generally lower, and Tuesday is where I always begin a search. For multi-city trips with several flights inside one region, a multi-city search โ the kind Skyscanner offers โ can price the whole string of flights together for less than booking each leg individually.
19. Try a VPN before you commit. When you book through a consolidator, the lowest price is usually on the local version of the site for the country where the flight departs. A Norwegian departure, in other words, will usually price best on the .no version of the site rather than the .com. Most big sites redirect you automatically, but a VPN lets you spoof your location and watch the rates move. People who do this regularly report saving hundreds of euros, pounds, or dollars. I treat it as a second opinion on the price, not a magic button.
20. For domestic hops, look at the smaller carriers. In Kenya I wanted out of the national parks after the Big 5, and I’d found Lamu’s beaches to be the right kind of escape from Nairobi traffic. The problem was that the national carrier’s fares were almost jaw-droppingly expensive. The airlines that fly only within Kenya weren’t โ a small regional carrier took me there in a turboprop for a fraction of the cost. When a domestic leg is part of a trip, the small operators are worth a look before you default to the big one.
21. Build your own deal alerts. Error fares and flash deals only last a little while, so the goal is to be notified the moment one appears. You can piece this together from three things: the Pushbullet app, IFTTT, and the RSS feeds of the deal sites that post fares daily โ Flynous, Fly4Free, and Faredealalert are the ones I’ve used. IFTTT connects the two: create an applet that filters an RSS feed by keyword and pushes the result to your phone or browser. Search ‘New York’ and you get alerts for every deal mentioning New York; add a second keyword like ‘Bangkok’ and you’re watching that specific route. With this setup I’ve booked a fair number of flights, including a recent Amsterdam to Costa Rica return for $250.
A note from Luna
I’ll be honest: not every trick above works every time. Some nights the price just doesn’t drop, and you book the flight you can afford and hope the window seat is quiet. But the pattern is the point. Check the currency, check the whole month, check the other airport, check the direct airline site, and give it ten minutes before you trust the first number you see. Ten minutes is about how long it takes to find out that the cheap version of a trip was there all along, one extra tab over.
Want the night-side of a destination? My Moonlit Guide series looks at one place at a time from after dark โ where to eat, where to walk, and where the light is actually good. The next one is already in the notebook.