How to Find Error Fares and Mistake Flights (Backpacker Guide)

A few taps and you could be flying to Tokyo for the price of a weekend bus ticket.

Quick Stats

• 💰 Typical saving: 40–80% off regular fares
• 🛩️ Best alert tools: Scott’s Cheap Flights (premium), Secret Flying, Google Flights
• ⏱️ Average window before fix: 2–12 hours (act fast, book immediately)
• 🎒 Ideal for: Flexible travelers with no rigid dates or destinations

I remember staring at my hostel bunk in Chiang Mai, phone glowing at 3 a.m. A tweet from Secret Flying popped up: “Ho Chi Minh City to Los Angeles – $179 roundtrip economy.” My fingers moved before my brain did. By the time I closed the booking confirmation, I had saved $700 on a ticket that would normally cost $950. That moment taught me something most backpackers never learn: airlines make mistakes, and those mistakes can fund your next two months on the road.

Error fares (also called mistake fares) happen when a human mistypes a number, a currency conversion glitches, or a fare class gets misloaded. The airlines are legally bound to honor tickets sold at published prices – at least until they catch the error. The trick is being ready the split second the deal appears. In this guide, I’ll walk you through exactly how to set up alerts, which tools to use, and the booking tricks that get you the ticket before the price vanishes.

The Essentials at a Glance

• 🔔 Real-time alerts – Follow Twitter accounts like @SecretFlying, @AirfareWatchdog, and @TheFlightDeal. Turn on notifications.
• 📱 App stack – Download Scott’s Cheap Flights (paid tier, $49/year pays for itself on one trip), Google Flights (for manual exploratory searches), and Hopper (for price prediction).
• ✈️ Flexible dates – Error fares usually pop up on random Tuesdays, Wednesdays, or Saturdays. Be ready to leave within a week or two.
• 🌍 No destination loyalty – Don’t decide where to go before you see the deal. Let the price decide.
• 💳 Fast checkout – Save your passport details and payment info in a browser autofill. Every second counts.

Step-by-Step: How to Catch and Book Error Fares

1. Build Your Alert Pipeline

Relying on one source is a mistake. You need a multi-layered system. Start with Secret Flying’s email newsletter – it’s free and sends 5–10 deals daily. Upgrade to their premium tier ($39/year) for early access. Next, follow @Airfarewatchdog on Twitter; they manually sift through thousands of fares every day. Finally, install Scott’s Cheap Flights (now called Going) – the free version gives you basic deals, but the paid “Elite” tier ($49/year) includes mistake fares from international carriers. I tested all three for a month. Scott’s caught a $280 roundtrip from London to Singapore three hours before Secret Flying posted it.

2. Master Google Flights Exploratory Search

Google Flights has a hidden trick: leave the destination blank, type “Everywhere” in the “To” field, and set your home airport. It shows a map of cheap fares. I do this every Tuesday morning at 6 a.m. Eastern. Sort by “Cheapest” and look for anything below $200 for transatlantic or $300 for transpacific. If a price on a major route (say, New York to Tokyo) drops to $220, that’s often the beginning of a currency error. Book immediately, even if you don’t know your return date – you can always change it later within the airline’s 24-hour cancellation window.

3. Know the Glitch Patterns

Not all error fares look the same. The most common glitch: currency conversion errors. Example: an airline in Myanmar listed flights in local kyat, but the system converted at a wrong rate, making a Bangkok–Yangon–Delhi route cost $12.50. I missed that one by four minutes. Other patterns include first-class miles priced as economy (I once flew Qatar Airways Qsuite to Doha for $260 because a fare class misload), missing fuel surcharges on long-haul flights (a $150 fee instead of $600), and phantom availability where the airline accidentally releases seats that don’t exist yet. In the last case, you might get a refund plus compensation if they cancel on you.

4. Book Fast, Validate Later

When you see a deal, don’t check the calendar, don’t ask your travel buddy, don’t call the bank. Book first. You have 24 hours to cancel for free on most U.S. carriers (14 days if booked seven days out). For foreign airlines, check the refund policy before hitting submit – some, like Ryanair, don’t have a cooling-off period. Use a credit card with no foreign transaction fees (Chase Sapphire Preferred, Capital One Venture). Never use debit. If the airline later cancels the ticket, the credit card chargeback protects you.

5. The “Trial Fare” Tactic

Some airlines (especially in Asia) trial a new route at absurdly low prices for a few hours to see demand. China Southern once offered Guangzhou to London for $99 one-way during a system test. These aren’t “mistakes” per se, but they behave exactly like error fares. I track the FlyerTalk forums – specifically the “Mistake Fare” thread. Set a Google Alert for “mistake fare [your city]” and check the thread twice daily. When someone posts that an itinerary looks wrong, book it before they update the thread with “dead.”

Backpacker Tip – Set your phone’s clock to UTC when traveling. Airline systems post error fares based on system time, not your local time. I missed a $150 flight to Reykjavik because I was an hour off. Use an atomic clock app to stay synced.

Money-Saving Tips

Tip 1 – Use a dedicated email for deals: Gmail filters push alerts straight to your primary inbox. Create a filter for “error fare” or “mistake fare” and highlight those messages in gold. I catch deals two or three hours faster than people using Yahoo or Outlook.

Tip 2 – Search for “business class error” not just economy: The biggest savings are often in premium cabins. A $600 business class flight to Europe instead of $3,000 is a goldmine if you don’t mind spending the extra $400. Use tools like Going Elite (adds business-class error alerts) or follow @PremiumFareDeals on Twitter.

Tip 3 – Fly to secondary airports: Airlines make pricing errors on less popular routes because the system uses stale data. Example: Fly into Osaka (KIX) instead of Tokyo (NRT) and take the Shinkansen for $80 – the flight savings were $340. Check both airports within 100 miles of your real destination.

Tip 4 – Stack with credit card points: If the error fare is too cheap to use miles, pay with cash. But if you have flexible points (Chase Ultimate Rewards, Amex MR), transfer them to an airline partner that shows the mistake fare. I once snagged a $90 United error fare by transferring 5,000 Amex points to Singapore Airlines KrisFlyer and using them as a partial payment.

Common Mistakes to Avoid

❌ Booking through third parties (Expedia, Kayak): Error fares are only honored if booked directly with the airline. Resellers have automated systems that catch errors faster and often cancel your order. Always book on the airline’s official website, even if the price is a bit higher.

❌ Hesitating for even 60 seconds: I once saw a $220 roundtrip from Los Angeles to Tokyo on Korean Air. I refreshed the page to check baggage fees. Price changed to $680 while I deliberated. The average error fare dies in under two hours. Train yourself to click without thinking.

❌ Ignoring the 24-hour cancellation rule: Many backpackers assume they can cancel any booking within 24 hours. Not true for foreign carriers (Emirates, Cathay Pacific). Always read the small print. If you book an error fare on a non-U.S. airline and it’s non-refundable, you’re stuck if the airline later cancels it. Use a credit card with strong consumer protections.

Quick Checklist

Documents: Passport valid for at least six months from departure. Scan and store in email + cloud. Carry a printed copy.

Packing: Bring a universal travel adapter (Anker 3-in-1). Pack a small daypack that fits under the seat. Never check luggage on an error fare – you might need to change flights last-minute.

Bookings: Set up a Google Flights alert for your home airport + “Everywhere.” Enable notifications for @SecretFlying and @AirfareWatchdog. Save your airline loyalty numbers in a password manager.

Apps/Currency: Download XE Currency for real-time rates. Error fares often involve weird currency conversions. Also install Flight Aware to track if the airline is canceling other flights (a sign they might catch the bug).

Safety: Never book from a public Wi-Fi network (hostel lobby, café). Use a VPN (NordVPN or Mullvad) to avoid price discrimination and to keep your booking secure.

FAQ

Q: Are error fares legal? Will the airline actually let me fly?

A: Yes, error fares are perfectly legal. Airlines are generally forced to honor tickets sold at the advertised price, even if it was a mistake. In rare cases (usually for extremely obvious glitches like $10 transatlantic flights), they may cancel and offer a full refund or a voucher. But 80% of the time, if you book quickly and the airline doesn’t catch it within 48 hours, you’re safe.

Q: How do I find error fares if I'm already on the road?

A: You don’t need a home base. Use the same tools: Secret Flying, Scott’s Cheap Flights (Going), and Twitter. Just change the departure airport in your alerts to wherever you are staying. I often set three simultaneous alerts for Bangkok, Hanoi, and Chiang Mai and pivot to whichever deal fires first.

Q: What’s the biggest error fare you’ve ever scored?

A: A $230 roundtrip from Kuala Lumpur to Paris on Air France. The fare class accidentally loaded as premium economy for economy price. I ended up with extra legroom, better meals, and a free checked bag. The normal price was $850.

Q: Should I pay for premium alert services, or are free ones enough?

A: Free alerts will catch the most viral errors, but premium services (Going Elite, Secret Flying Premium) get the alerts 1–4 hours earlier. If you are serious about finding deals, $49/year is a no-brainer. I estimate it has saved me over $2,000 in two years.

Q: What should I do if the airline cancels my ticket after I've already made non-refundable plans?

A: Immediately email the airline’s customer service and demand compensation. Many airlines offer a goodwill voucher or an upgrade on a rescheduled flight. If they refuse, dispute the charge with your credit card company. You can also fall back on travel insurance (World Nomads covers schedule changes if you booked a ticket that was later invalidated).

Final Thoughts

Error fares aren’t a lottery ticket – they’re a skill. The tools are free or cheap, the timing is learnable, and the payout funds entire months of travel. I’ve missed plenty (a $120 London–Bangkok that died while I was typing my credit card) and landed enough to never pay full price for a long-haul flight again. The secret isn’t luck. It’s having your alerts ready, your trigger finger fast, and your itinerary flexible enough to jump on a mistake that a tired airline employee made at 3 a.m.

Next time you’re sitting in a hostel common room, open Google Flights, check Secret Flying, and see where the glitches take you. You might wake up in a country you never planned to visit – and that’s the whole point.

✦ Save this guide ✦
Bookmark it, share it with your travel buddies, or pin it for your next trip-planning session. Error fares don’t last long – you’ll want this checklist at your fingertips when that 3 a.m. notification rings.

Have you ever scored a mistake fare? Drop the story in the comments, or tweet me @travelbackpacker – I’d love to hear what sub-$200 flight changed your travel plans.