You can lock in a round‑trip to Lisbon for under $300 by using Google Flights Explore and fare alerts. Below are ten beginner‑friendly hacks that turn expensive trips into affordable adventures, each backed by real tools and concrete numbers.

Score Rock‑Bottom Flights

Finding cheap airfare is the biggest lever in any travel budget. Use these tactics to drop your flight costs by double‑digits.

Use Google Flights Explore map

Google Flights’ Explore map lets you view a map of destinations sorted by price from your home airport, helping you spot the cheapest places to fly (as of 2025). Instead of locking yourself into a single city, you can drag the map around and watch prices update in real time.

  • Set your departure airport as the origin
  • Leave the destination blank to see a heatmap of fares
  • Filter by trip length, number of stops, or preferred airlines
  • Click a pin to see calendar view and pick the cheapest dates

Subscribe to fare alert services

Subscribing to fare alert services like Scott's Cheap Flights (now Going) or Airfarewatchdog delivers error fares and flash sales directly to your inbox (as of 2025). These services scan airlines for mistake fares—sometimes 70% off—and ping you before they disappear.

  • Choose a service that covers your home region
  • Set alerts for multiple continents to increase odds
  • Act fast: error fares can vanish in minutes
  • Keep a separate email folder so deals don’t get lost

Be flexible with departure days

According to CheapAir’s 2023 Airfare Study, the cheapest days to depart on domestic U.S. flights are Tuesdays and Wednesdays, with average savings of up to 15% compared to weekend departures (as of 2025). The same pattern often holds for international routes, especially when flying out of major hubs.

  • Search a whole month view to spot the lowest‑price days
  • Consider flying out on Tuesday and returning on Wednesday
  • If you must fly weekend, aim for early‑morning or late‑night flights
  • Use the “date grid” in Google Flights to compare a week at a glance

Consider hidden‑city ticketing (with caution)

Hidden‑city ticketing—booking a flight with a layover and exiting at the layover city—can yield lower fares but risks airline penalties, including ticket cancellation and loss of frequent‑flyer miles (as of 2025). It works best when you have no checked luggage and your final destination is the layover point.

  • Only use on one‑way tickets; round‑trips will cancel the return leg
  • Never check bags—they’ll go to the ticketed final destination
  • Be aware that repeated use can trigger account reviews
  • Keep a copy of the itinerary in case the airline asks for proof of travel

Pros

  • Lower fares compared to standard ticket
  • Can save significant money on certain routes

Cons

  • No checked luggage allowed
  • Risk of ticket cancellation and loss of frequent‑flyer miles
  • Possible account review if used repeatedly

Maximize Travel Rewards

Points and miles can turn everyday spending into free flights or hotel nights. Start with a solid welcome bonus and learn how to stretch those points.

Chase Sapphire Preferred welcome bonus

The Chase Sapphire Preferred® Card offers a 60,000‑point welcome bonus after spending $4,000 in the first three months, which can be redeemed for $750+ in travel through Chase Ultimate Rewards (as of 2025). That’s enough for a round‑trip to Europe or a couple of domestic flights if you play it right.

  • Meet the $4k spend by putting regular bills (rent, utilities) on the card
  • Transfer points 1:1 to airline partners like United, British Airways, or Hyatt
  • Use the 25% bonus when booking travel through Chase Travel Portal
  • Keep the card for at least a year to avoid annual‑fee churn penalties

Transfer points to airline partners

Chase Ultimate Rewards points transfer to more than a dozen airline and hotel programs at a 1:1 ratio, often unlocking better value than the portal. For example, 60k points can become 60k Avios for a short‑haul British Airways flight that can cost $500 cash.

  • Check award charts before transferring to avoid bad redemption rates
  • Look for partner sweet spots: off‑peak Avios, Flying Blue promos, etc.
  • Keep points in Chase until you have a specific award in mind
  • Use the “Points.com” calculator to estimate cash value of each transfer

Earn points on everyday spend

Beyond the welcome bonus, the Sapphire Preferred gives 2x points on travel and dining and 1x on everything else. Stack those earnings with shopping portals and bonus categories to accelerate your balance.

  • Activate quarterly bonus categories on partner cards (e.g., 5x on groceries)
  • Use Rakuten or TopCashback when shopping online for extra points
  • Pay your phone bill, streaming services, and subscription boxes with the card
  • Set up automatic payments to avoid missing the monthly spend threshold

Cut Costs on the Ground

Flights are just the start. Savings on lodging, transport, and food can stretch a budget even further.

Book alternative accommodations

Hostels, Airbnb private rooms, and house‑sitting platforms often beat hotel prices, especially in expensive cities. You’ll also meet locals and other travelers, which can lead to insider tips.

  • Filter Airbnb for “entire place” if you need a kitchen to save on meals
  • Look for hostels with private rooms if you want social vibes plus privacy
  • Try TrustedHousesitters or HouseCarers for free lodging in exchange for pet care
  • Book refundable rates when possible; plans change more often than you think

Comparison of alternative lodging

OptionKey BenefitConsideration
HostelsMeet locals and other travelers; insider tipsLook for private rooms if you want privacy
Airbnb private roomsKitchen access to save on mealsVerify entire‑place if you need a kitchen; check refundable rates
House‑sittingFree lodging in exchange for pet careBe ready to provide pet care; verify responsibilities

Pros

  • Often beat hotel prices
  • Meet locals and other travelers, leading to insider tips
  • Ability to cook meals (kitchen) saving on food
  • Free lodging in exchange for pet care (house‑sitting)

Cons

  • May require seeking private rooms for privacy
  • May need to verify kitchen availability (Airbnb)
  • Requires pet care responsibilities (house‑sitting)

Use local transit passes vs rideshares

A daily or weekly transit pass usually beats the cost of multiple Uber rides, and it lets you experience the city like a resident.

  • Purchase a city travel card on arrival (e.g., London Oyster, Paris Navigo)
  • Check if the pass includes trains to nearby attractions or airports
  • Use apps like Citymapper or Google Maps for real‑time route planning
  • Reserve rideshares only for late‑night or luggage‑heavy trips

Comparison of transit options

OptionCost BenefitUsage Tip
Transit passUsually cheaper than multiple Uber ridesPurchase on arrival; check if includes trains to attractions/airports
RideshareCan be cheaper for single trips but adds upReserve for late‑night or luggage‑heavy trips

Pros

  • Usually beats cost of multiple Uber rides
  • Lets you experience the city like a resident
  • May include trains to nearby attractions or airports
  • Can use apps for real‑time route planning

Cons

  • May be less convenient for late‑night or luggage‑heavy trips
  • Requires purchasing a card on arrival
  • Requires checking coverage to ensure it meets your needs

Eat like a local

Tourist‑zone restaurants inflate prices; markets, street stalls, and family‑run eateries serve authentic food for a fraction of the cost.

  • Visit morning markets for fresh fruit, cheese, and baked goods
  • Follow crowds of locals to find the best street‑food stalls
  • Cook simple meals in hostel kitchens or Airbnb kitchens to save on dinner
  • Carry a reusable water bottle and refill to avoid buying bottled water

Avoid Rookie Mistakes

Even seasoned travelers slip up. Knowing the common pitfalls keeps your trip smooth and your wallet intact.

Watch out for baggage fees

Low‑fare carriers often advertise rock‑bottom prices then charge $30‑$50 per checked bag. Packing light can save you enough for an extra night’s stay.

  • Measure your bag against the airline’s exact dimensions before you leave
  • Wear your bulkiest items (jeans, boots) on the plane to free up space
  • Use compression packing cubes to maximize carry‑on capacity
  • If you must check a bag, pre‑pay online—it’s cheaper than at the airport

Check visa & entry requirements early

Nothing derails a trip like being turned away at the border. Visa policies change, and some countries require proof of onward travel or vaccination.

  • Consult the official government site of your destination (not third‑party blogs)
  • Apply for e‑visas at least two weeks before departure
  • Keep a digital and paper copy of your passport, visa, and insurance
  • Register with your embassy’s travel‑alert service for safety updates

Keep emergency cash and backup cards

ATMs can be out of service, cards can be blocked, and fraud alerts can freeze your account. Having a Plan B prevents you from being stranded.

  • Stash $100‑$200 in USD or EUR in a hidden money belt
  • Carry a second debit or credit card from a different bank
  • Notify your bank of travel dates to avoid automatic blocks
  • Use a multi‑currency account like Wise or Revolut for low‑fee withdrawals

Bottom Line

  • Use Google Flights Explore and fare alerts to uncover dirt‑cheap flights
  • Target Tuesday/Wednesday departures for up to 15% savings on U.S. routes
  • Leverage the Chase Sapphire Preferred 60k‑point bonus for $750+ in travel value
  • Save on lodging with hostels, Airbnb, or house‑sitting; eat like a local to slash food costs
  • Dodge baggage fees, visa surprises, and frozen cards by planning ahead

FAQ

How do I know if a fare alert is legit?

Stick to well‑known services like Going or Airfarewatchdog. They vet deals before sending them out, and you can always double‑check the price on Google Flights or the airline’s site.

Can I use hidden‑city ticketing for international flights?

Yes, but the same risks apply—no checked bags, possible itinerary cancellation, and potential impact on your frequent‑flyer status. Use it sparingly and only when you understand the airline’s contract of carriage.

Is the Chase Sapphire Preferred worth the $95 annual fee?

If you spend at least $4k in the first three months to earn the 60k‑point bonus and then get 2x on travel/dining, the fee is usually offset by the travel redemptions. For low spenders, a no‑annual‑fee card with 1.5x flat‑rate might be better.