Flight pricing moves in unpredictable waves, but data shows clear patterns. Industry studies find mid-week travel usually costs less – for international routes, Tuesdays, Wednesdays, and Saturdays often have the lowest fares. Likewise, booking flights early in the week tends to save money. For example, Skyscanner reports that Sunday is generally one of the cheapest days to book international tickets, and Tuesday often sees fare drops from new sales. Kayak and Expedia data agree: booking on Mondays or Tuesdays (or even Sundays) can yield significantly lower prices than rushing on weekends. In short, be flexible: fly on quieter midweek days and shop for flights at the start of the week or on Sunday for the best deals.

Best Days and Times to Book Flights

Fly mid-week, avoid Fri/Sun: Research consistently finds that departing on Tuesdays, Wednesdays, or Saturdays is cheapest for international trips. By contrast, Fridays and Sundays are heavy travel days with premium prices.
Book early-ish, but not too early: Aim to purchase tickets in the “prime booking window”: roughly 2–8 months before departure. Google’s analysis found international fares hit a historical low about 101 days out, and NerdWallet concurs that booking 2–8 months ahead minimizes cost surges. Waiting until the last minute usually means higher last-minute fares.
Watch for daily deals; use alerts: Instead of fixating on one magical day or time, use flight tools and price alerts. Airlines often release sale fares overnight (Monday night into Tuesday), so checking early in the morning can pay off. For example, Skyscanner found that booking around 6 a.m. EST often catches the new lowest prices. But because pricing algorithms shift constantly, it’s best to set Google Flights or app alerts so you’re notified whenever fares drop.

Common Booking Mistakes That Raise Costs

Booking “too” early or late: Airfares aren’t cheapest a year in advance or the day before. Experts warn overbooking: buying flights more than 6 months out can cost more because initial prices are high. On the flip side, last-minute booking (under ~1-2 months) usually means premium prices. Aim for the optimal window (see above).
Lack of flexibility with dates: Sticking rigidly to specific departure/return dates can trap you on peak-price days. For example, Expedia notes flying on a Thursday rather than Sunday can save ~16%. Using calendar views or “flexible dates” tools in Google Flights or Skyscanner is key. As one expert quips, let the cheapest flights dictate your dates, not the other way around.
Ignoring alternate airports: Many cities have multiple airports – sometimes flying into a neighboring airport or city is far cheaper. Not checking nearby airports is a missed opportunity. Always toggle “include nearby airports” (for example, NYC for JFK/EWR/LGA) or manually search alternative hubs. In some cases it pays to book separate flights (e.g. long-haul to a major hub, then budget carrier to your city) to slash costs.
Relying on one site or cabin class: Just booking the first price you see or always grabbing basic economy fares can backfire. Basic economy tickets omit carry-on bags, seat selection, and change options, which might force extra fees later. And no single booking site is exhaustive. Compare fares across aggregators (Expedia, Skyscanner, Google Flights) and airlines’ own sites, since sometimes the cheapest fares only show up on the airline’s website.
Believing cookie and myth traps: There’s no proof that searching repeatedly or clearing cookies alone will magically drop prices. In fact, a SmarterTravel review found no consistent evidence that airlines hike fares when you search more. Instead, focus on data: use official tools (Google, Hopper) that predict price drops. Also, forget the old “must book on Tuesday” rule – modern algorithms update fares constantly, not on a fixed schedule.
Flying on peak days: Book flights departing (or returning) on Friday and Sunday only if you must – they’re usually more expensive due to business and weekend travelers. Swapping a Monday flight for Tuesday can save money. In general, traveling on off-peak days goes hand-in-hand with finding lower fares.

Credit Cards: Discounts, Points & Rewards

The right credit cards can shave costs and earn free travel:

Earn points on flights: Rewards cards typically give 2–5 points per dollar on airfare. For example, premium cards can offer 5× points on paid flights (see NerdWallet data). Over time, these points add up to free or discounted awards. Airlines for America notes that 57% of frequent-flier miles in 2023 came from credit card spending – showing how common it is to tap cards for travel.
Airline co-branded perks: Airline credit cards often include ticket discounts and freebies. A good example: the Delta SkyMiles® Platinum Amex gives 15% back when you redeem miles for Delta award flights (effectively a 15% discount), plus free checked bags and priority boarding. Others might offer companion tickets or bonus miles. Alaska Airlines’ Visa card, for instance, includes an annual companion fare and a rebate on miles earned. These perks directly reduce your travel costs.
Travel portal bargains: Many banks let you book flights via their portal using points or cash. NerdWallet found that the Chase and Citi travel portals often list the lowest cash prices for flights, beating even AmEx’s portal. If you have points in these programs, you can often get 1.25–1.5¢ per point in value by booking through the portal, and sometimes bonus points for booking. It pays to compare the same flight on a travel portal vs. airlines.
Travel credits and bonuses: Don’t forget statement credits and bonus categories. Cards like Chase Sapphire or AmEx Platinum offer annual travel credits (e.g. for airline fees or hotels) that can offset part of your ticket cost. Even general cash-back cards with a decent airline bonus category (like 3× or 5× on travel) can help you “pay” for flights with points. In short, use a travel rewards card, book flights through that card’s portal if possible, and redeem points to lower your net price. All told, strategic card use can effectively discount your ticket or yield free tickets over time.

Loyalty Programs & Membership Perks

Signing up for airline loyalty programs can unlock exclusive deals and freebies:

Earn free flights: The most obvious benefit is using accumulated miles/points to book award tickets. For loyal flyers, this can mean flying nearly free. Loyalty programs often run “award sales” where certain routes cost fewer miles, stretching your savings. Airlines also partner with hotels, rental cars, and stores: for example, Delta’s SkyMiles program offers mile bonuses and coupon deals for shopping at 1,000+ retailers. Every bit of spend or transferable points boosts your balance for free flights.
Elite benefits: Climbing status tiers can yield substantial savings. Even “silver” or mid-tier status can get you free checked bags and seat upgrades, which translate to direct money-savings (e.g. $70 per bag per person). Some top-tier programs let you redeem “extra-legroom” seats for fewer points. Also, credit-card-connected status boosts (e.g. airline status via spending) mean you pay less in fees and upgrades, leaving more budget for future flights.
Member-only fares and pre-sales: Airlines often offer special promotions just for loyalty members. These can include advance access to sale fares or special coupons. For example, many carriers email targeted discounts to their subscribers or mile-age elites. While not always advertised widely, being in the program keeps you in the loop on such deals. Plus, loyalty credit cards sometimes have dedicated award discounts (like the 15% Delta example) only for cardholders.
Overall, loyalty programs turn normal trips into points-earning opportunities, and points into cheaper (or free) travel, effectively lowering your costs when used wisely.

Pro Tips for Booking Cheaper Flights

Use powerful search tools: Start with a flexible search engine like Google Flights or Skyscanner. Google Flights offers calendar and price graph views to spot the cheapest days, and an “Explore” map to find budget destinations from your origin. Skyscanner’s “whole month” view shows price trends across dates. These tools let you shop anywhere, anytime for bargains.
Fly flexibly or multi-city: Consider open-jaw or multi-city trips if it saves money. Sometimes flying into one city and out of another is cheaper than a round-trip. Mix and match airlines or book one-ways: certain budget airlines sell only one-way tickets, so combining carriers can cut costs. A Thrifty Traveler tip: “Flight-first” rule – pick the cheapest flights first, then plan hotels/dates around them. Even shifting a trip by a day can save hundreds (see example of Tokyo dates above).
Travel in shoulder or off-peak times: Aside from weekdays, the season matters. Avoid peak summer or major holidays if you can. Thrifty Traveler recommends traveling in shoulder seasons (spring or late fall) when Europe and other destinations are cheaper and less crowded. Winter flights (outside December holidays) and mid-season months often have big savings on long-haul routes.
Keep checking & re-book if needed: Once you book at a “good” price, continue to monitor. Many airlines allow free changes. If your fare drops significantly, cancel and rebook to catch the lower rate (you may get a travel credit). Tools like Hopper, Google Flights, or ThriftyTraveler alerts help; set alerts as soon as you start searching. This price-flex approach can shave extra dollars even after booking.
Clear fees and hidden costs: Factor in baggage and seat fees. If a low fare requires a big paid bag or seat selection, add that into the total cost. Sometimes a slightly higher “standard economy” fare (which includes carry-on) is worth it. Also, consider booking with credit cards that waive foreign transaction fees and provide travel protections, so you save on banking fees or trip cancellations.
Combine deals and points: Finally, stack savings: look for coupon codes or stacking site promotions. You might find a $50 off email code from an airline or book through a portal offering bonus points. Use any travel voucher/credit from other sources (like Chase travel credits) to offset your fare. Every little bit counts toward lowering your out-of-pocket price.

By using these strategies – choosing the right flight days, avoiding booking blunders, leveraging credit card points and airline perks, and always shopping smart – travelers can consistently snag cheaper international fares. Being flexible, data-driven, and proactive is the key to paying less and traveling more. Safe travels and happy bargain hunting!

Fly Smarter, Pay Less: Insider Tips for Cheaper International Flights