Frequently Asked Questions

General Questions

What is Sky Arb?

Sky Arb is an email messaging service dedicated to sending subscribers alerts for low cost international airfare opportunities. Our service sends email alerts to our subscribers when we notice significant discounts compared to regular airfare prices for international flights. Our name “Sky Arb” is in reference to the spirit of “sky arbitrage” as it relates to finding terrific, value-priced airfare.

Is Sky Arb free?

Yes, you can sign up for a free subscription to Sky Arb’s international flight alerts by providing an email address and creating a login on the homepage. Sky Arb also offers a paid premium subscription (Sky Arb Pro) that offers domestic flight email alerts for the United States plus additional benefits. See the “What benefits does Sky Arb Pro give users?” question below for more details.

How is Sky Arb different from other flight deal services?

Sky Arb is different from other flight deal services because it 1) always tries to find the lowest cost flight option, 2) is able to search more thoroughly than competitors by using an algorithmic and systematic approach, and 3) is not affiliated with any specific online travel service and does not receive commissions. Competitors often focus on different segments of the travel market, depending on the scope of airlines searched, which can lead to higher prices. Several Sky Arb alerts (see Latest Flight Savings for examples) are also bundled into a single email, which helps keep subscribers’ inboxes uncluttered.

How do I sign up for Sky Arb?

You can sign up for free flight email alerts on the homepage and can sign up for Sky Arb Pro using this hyperlink.

How do I sign up for Sky Arb Pro?

You can sign up for Sky Arb Pro using this hyperlink.

What benefits does Sky Arb Pro give users?

Sky Arb Pro subscribers 1) receive all international flight alerts (free subscribers receive approximately 25% of alerts), 2) have access to domestic flight alerts for the United States, 3) do not have advertisements in email alerts, and 4) are the first to receive all flight alerts.

Is Sky Arb affiliated with any travel service providers or search engines?

No, Sky Arb is not affiliated with any travel service providers or search engines. Sky Arb does not receive commissions or incentives from third parties for recommending flights alerts.

Which countries for departures does Sky Arb cover?

Sky Arb is initially focused on flights departing from the United States and Canada. We have plans to expand our service to include dozens of departure locations across Europe, Asia, and Oceania.

Can Sky Arb perform custom searches for subscribers? Can you help me find a specific flight?

No, Sky Arb sadly cannot build custom flight queries or alerts due to the volume of daily emails received and resource constraints of its staff. We wish we could make custom alerts for all of our subscribers but unfortunately we do not have the computing or personnel resources available to reliably track custom alerts.

What kinds of flight alerts does Sky Arb send to subscribers? How many alerts will I get daily?

Sky Arb sends email alerts for flights that are substantially discounted to ordinary airfare rates. All flight alerts are checked before being sent to subscribers (flight alerts include screenshots and instructions how to book discounted airfare). We tend to send alerts in the morning and in the later evening Eastern Time. Free subscribers receive approximately 25% of Sky Arb’s alerts.

I signed up (cancelled or paused my subscription) but why am I not (still) getting emails from Sky Arb?

It takes our servers approximately 24 hours to update for additions, changes, or cancellations to subscribers’ accounts. If you continue having problems receiving (or wish to stop receiving) alerts after 24 hours of making a change to your account or signing up, please send us an email at and we will get back to you.

Booking Questions

Are Sky Arb’s flight alerts genuine and actionable?

Yes, all of Sky Arb’s flight alerts are checked and include a screenshot of the actionable online opportunity to book discounted airfare. The opportunity to book discounted airfare passes quickly and lasts from as short as a few hours to a few days. We try to send out flight alerts as soon as we find them to maximize subscribers’ chance of booking discounted airfare.

Does Sky Arb offer first class or business class flight alerts?

On rare occasions Sky Arb will find opportunities for discounted first class or business class flights. The majority of our alerts are for discounted economy class flights because the maximum savings is often found for these opportunities.

Are the online travel agencies used to book Sky Arb’s flight alerts trustworthy?

Generally yes, the online travel agencies (OTAs) that provide the flights in Sky Arb’s email alerts are usually trustworthy and are able to book flights without discrepancies. Sky Arb searches all of the major OTAs and usually recommends Google Flights, Sky Scanner, and Momondo as airfare search engines to get the lowest prices possible. The OTAs that book flights through Google Flights, Sky Scanner, and Momondo are generally trustworthy in our experience.

Can I use my personal flight rewards with these flights?

Yes of course, we encourage you to use your personal flight rewards, frequent flyer miles, and any other savings to make discounted flights even cheaper.

Sky Arb Pro Questions

How do I adjust the departure countries for which I receive flight alerts?

Visit the Sky Arb Login website and then access your dashboard to select departure countries. You will only receive alerts from the departure countries you have selected. After making adjustments, please allow 24 hours for changes to take effect.

Is my credit card information safe?

Yes, Sky Arb uses Stripe as its payment processor (Stripe is the payment processor for over 100,000 merchants globally) and Sky Arb’s website is protected using 128-bit encryption.

How can I cancel my Sky Arb Pro subscription?

Yes, visit the Sky Arb Login and at the bottom of the dashboard you have the opportunity to pause or cancel your Sky Arb Pro subscription. Pausing your subscription will prevent flights alert from being emailed to you but automatic billing will continue. You can resume your subscription by logging into your dashboard and clicking “Resume Subscription” at the bottom of the webpage. Cancelling your subscription will stop flight alerts from being emailed to you and end your Sky Arb Pro subscription; all billing will also cease following a subscription cancellation.

Can I request a refund for my Sky Arb Pro subscription after I cancel it?

Yes, you can cancel your Sky Arb Pro subscription and request a refund. We will refund Sky Arb Pro membership purchases if a customer request is submitted within 30 calendar days of the membership order confirmation. Please email Sky Arb Pro refund requests to with the subject line “Refund Request” so that we may acknowledge the message and respond accordingly. Occasionally we offer Sky Arb Pro memberships at discounted prices as part of promotions and during seasonal holidays; discounted Sky Arb Pro memberships are not eligible for refunds. Sky Arb Pro memberships offered through unauthorized resellers or affiliates (memberships not directly sold through Sky Arb’s website) are not eligible for refunds.

Will my Sky Arb Pro subscription renew automatically?

Yes, Sky Arb Pro subscriptions renew automatically and bill customers’ credit cards following renewal.

Can I get a receipt for my Sky Arb Pro subscription purchase?

Yes, Sky Arb sends a confirmation email for all Sky Arb Pro subscription purchases. This confirmation email includes the date of the subscription purchase, cost of the subscription, and next billing date.