https://kestrelia.com/en/blog Flight fare tracking, airline pricing mechanics and booking strategy. Guides and analysis for departures from Canada and the United States. en-CA https://kestrelia.com/en/blog/mistake-fares-explained https://kestrelia.com/en/blog/mistake-fares-explained Montreal to Tokyo for $340 is not a promotion, it is an industrial accident — and you have hours to decide. How they happen, how to play. Mon, 17 Aug 2026 09:00:00 GMT https://kestrelia.com/en/blog/fare-classes-explained https://kestrelia.com/en/blog/fare-classes-explained In 14A and 14B, two passengers paid $312 and $780. Same plane, same meal, same arrival time. Here is what the second one actually bought — and it was not a seat. Mon, 10 Aug 2026 09:00:00 GMT https://kestrelia.com/en/blog/how-airlines-set-prices https://kestrelia.com/en/blog/how-airlines-set-prices A plane is not a shelf of identical products. It is about twenty small markets sold one after another — and that explains why fares jump instead of gliding. Mon, 03 Aug 2026 09:00:00 GMT https://kestrelia.com/en/blog/best-day-to-book-flights https://kestrelia.com/en/blog/best-day-to-book-flights Friday says Expedia, Monday says Upgraded Points, 1.9% says Google. The studies contradict each other — the question is the wrong one. Mon, 27 Jul 2026 09:00:00 GMT https://kestrelia.com/en/blog/going-alternatives-canada https://kestrelia.com/en/blog/going-alternatives-canada Going's free tier only covers US domestic flights. Here are the options that genuinely help when you fly out of Montreal, Toronto or Vancouver. Mon, 20 Jul 2026 09:00:00 GMT https://kestrelia.com/en/blog/how-flight-alert-apps-work https://kestrelia.com/en/blog/how-flight-alert-apps-work Five steps sit between a price moving and an email reaching you. Understanding them is enough to tell a useful tool from a notification machine. Wed, 15 Jul 2026 09:00:00 GMT https://kestrelia.com/en/blog/going-subscription-review https://kestrelia.com/en/blog/going-subscription-review Going has over a million subscribers. What its three tiers really cover, what they do not, and who the subscription pays off for. Mon, 13 Jul 2026 09:00:00 GMT https://kestrelia.com/en/blog/going-vs-hopper-vs-kestrelia https://kestrelia.com/en/blog/going-vs-hopper-vs-kestrelia These three tools answer different questions. Here is which one each handles, what each refuses to do — us included — and how to decide. Fri, 10 Jul 2026 09:00:00 GMT https://kestrelia.com/en/blog/google-flights-alerts-limits https://kestrelia.com/en/blog/google-flights-alerts-limits Free, reliable, enough for most travellers. The three things Google Flights alerts do not do — and how to tell whether it affects you. Mon, 06 Jul 2026 09:00:00 GMT https://kestrelia.com/en/blog/how-to-set-up-flight-alerts https://kestrelia.com/en/blog/how-to-set-up-flight-alerts A badly set alert either drowns you or never fires. The four settings that decide everything, and the mistake almost everyone makes first. Mon, 06 Jul 2026 09:00:00 GMT https://kestrelia.com/en/blog/buy-now-or-wait-flight-prices https://kestrelia.com/en/blog/buy-now-or-wait-flight-prices Nobody predicts fares reliably. But three checkable benchmarks are enough to decide — and one asymmetry almost everyone ignores tips the balance. Sun, 05 Jul 2026 09:00:00 GMT