Autopilot vs Euclid: Which Flight and Hotel Repricing Service Wins in 2026?

Short answer: Autopilot has the longer track record and the most reviews, while Euclid is cheaper at a flat 20%, covers Southwest and award tickets without a subscription, and answers you in live chat. Which one wins comes down to whether you value a proven name or broader coverage for less. Here is the full comparison, current as of July 2026.

One disclosure up front: we build Euclid, so read this as an argument rather than a neutral referee, and check every fact against the links. We have worked to be fair about where Autopilot is genuinely the better tool, because it often is.

Autopilot vs Euclid at a glance

What Autopilot does well

Autopilot is the most established name in post-booking repricing, and it earns the reputation. It reprices flights in place, so your confirmation number and seat stay put. It has expanded into hotels on Marriott, IHG and Hyatt (Hilton listed as coming), it sends award price-drop alerts on its Pro plan, and it states that it undergoes the same Google CASA Tier 2 security assessment Euclid has passed. It also has the one thing a new tool cannot fake: years of real customers and the most independent hands-on reviews in the category. If a proven track record is your top priority, Autopilot has it and Euclid does not.

Where Autopilot falls short against Euclid

• Its standard fee is 25% of savings, versus Euclid's flat 20%.
• Its cheaper 15% rate and its award alerts both sit behind a $9.99 per month Pro subscription, and even then it only flags an award drop, leaving you to cancel and rebook the miles yourself. Euclid actually reprices award tickets at 20% with nothing extra.
• It does not cover Southwest. Euclid does.
• Its hotel list skips Hilton for now. Euclid covers Marriott, IHG, Hilton and Hyatt.
• Its listed support channel is email. Euclid answers in live chat, with a real person on every reprice.

The fee math, honestly

On a single $200 price drop, Autopilot's free plan takes 25%, or $50, while Euclid takes 20%, or $40. Autopilot's Pro plan charges 15% on the first $500 of savings each month, which is $30 on that same drop, but it costs $9.99 a month, so on a single save it lands at about $40 too. Pro only pulls clearly ahead if you capture several drops in a month and spread that $9.99 across them. For occasional savers, Euclid's flat 20% with no subscription is simpler and usually cheaper; for heavy savers who reliably clear the subscription, Autopilot Pro can edge below 20%.

Award tickets and Southwest

These are the two places the tools diverge most. Autopilot's award feature is Pro-only and alerts-only: it tells you when an award price drops, but you cancel and rebook the miles yourself, and it does not cover Southwest at all. Euclid actually reprices award tickets at its standard 20% with no subscription, redepositing the miles for you, and it covers Southwest alongside the other five major US carriers. If you book with miles or you fly Southwest, that is the difference that decides it.

Support when a reprice goes sideways

Both tools reprice cash flights in place, which is the low-risk mechanism, but reissues can still occasionally drop a seat assignment, and that is the moment support matters. Autopilot's listed channel is email. Euclid's is live chat inside the product, with a real person on every reprice, so a problem is a conversation rather than a ticket.

Who should choose which

Choose Autopilot if you want the longest track record and the most reviews, you fly the carriers it supports rather than Southwest, and you save enough each month to justify the Pro plan's 15%.

Choose Euclid if you fly Southwest, you book award tickets, you want live human support, or you would simply rather pay a flat 20% with nothing upfront and no subscription.

For the whole field beyond these two, see our comparison of every flight and hotel repricing service. For how in-place repricing works under the hood, see our guide to automated flight repricing.