Has anyone used this?

Looks interesting to me, particularly what you highlighted that up to $400 per person rebooking on any airline.

Would have been great for my fianc� whose flight was cancelled last night. Here are the terms: https://hts.hopper.com/legal/Frontie...nes-Disruption
It's a service provided by a third party. I will be interested to hear how it goes if anyone takes advantage of this. It DOES include delays due to weather.

Frontier used to do something like this for free in 2022. I used the link to book a Southwest flight when my Frontier flight was cancelled. Frontier stopped offering this option not long after. Sounds like the new paid option through Hopper will work in a similar way?

FLIGHT ALERT

We're sorry that we've had to cancel your flight 2175 from LAS - Las Vegas, NV to RNO - Reno, NV on January, 06 2022. We apologize for this inconvenience and the impact to your travel plans.

To assist with your travel, we've put together some options:

Option #1 – Up to $200 for travel on another airline
If you prefer, we'll reimburse up to $200 per traveler for travel on another airline within 72 hours.

Here's how it works: To purchase your tickets within the next 24 hours for one-way travel to be completed within 72 hours, please visit https://rebook.tripeasy.com, using your Last Name and Frontier reference # [REDACTED] to login. Then, book and pay for your one-way travel. Within 14 business days, a reimbursement check will be mailed to the address you provide on the payment page of the booking process.

Option #2 – Full credit for your ticket + a $100 Frontier voucher per traveler
If you prefer to travel with Frontier at another time, we'll provide you with full credit for the unused value of your Frontier ticket plus a $100 voucher per traveler valid for future travel with Frontier.

• Your credit will be sent to you within one week, and will be available for use for booking future travel on Frontier for 90 days from the date the credit was issued; your future travel does not need to be completed within 90 days
• Your voucher(s) will be sent to you within one week, and will be valid for redemption for 90 days from the date of issue. Travel does not need to be completed in that time.
• Voucher(s) and credits are valid for one-time use in booking future air travel on Frontier; Voucher(s) are applicable to ticket fare only, and not to taxes or fees

Would be tempting if I absolutely have to be somewhere (but then I probably would not book Frontier) or perhaps for flights that are notoriously delayed. However it does not seem to apply to missed connections which would be my biggest concern. Don't want to get stuck in DEN

The link does not work, at least for me. Tripeasy,com seems to be a 3rd party business travel site. The site itself doesn't have an obvious rebook link that I saw. I tried to check to see what airlines they can offer but didn't want to bother with creating any account..... it would not surprise me if the options for rebook were restricted and pricey. Maybe someone will actually use it and give feedback.

ETA: Ahhh... the link was from 2022,so likely not the right link to use in 2025.

Good point, if your original flight isn't delayed more than two hours but still miss the connection this service doesn't do anything for you.
I've used Hopper before through the Capital One travel portal and the prices were typically what you could find on any other OTA, but the fact that you'll be looking at last minute booking prices means $400 may not cover the entire price of the ticket.