Costco Travel rental car price drop: how to rebook
Car rental prices move after you book. Here is how to take the lower price on a Costco Travel booking, and what cancelling the original costs.
Or let Plot watch your Costco Travel rental and tell you the moment a lower price is worth rebooking.
Plot · now
Your Costco Travel rental dropped $45
Here's exactly how to take the lower price.
The fine print
What Costco Travel charges to cancel
- Pay later
- Rental cars booked online at Costco Travel take no payment at booking, and Costco charges nothing to cancel an online reservation.
- Prepaid (Pay Now)
- A prepaid rate booked by phone may carry change or cancellation fees. Check your confirmation before you rebook.
- Price guarantee
- Costco Travel does not guarantee a price adjustment. An agent can check whether the rental company will allow the new price on your booking, but Costco's own instruction for changes is to book and confirm a new reservation, then cancel the previous one.
- What rebooking elsewhere can cost
- Costco Travel rentals include an additional driver at no extra charge at participating US Alamo, Avis, Budget and Enterprise locations. Rebook the same car on another site and that driver is no longer included, so count what that driver would cost against the saving.
Worth knowing
- A cancelled Costco Travel reservation cannot be reinstated, so confirm the new one before you cancel.
- Changing a reservation can raise its price. Booking new and cancelling keeps the rate you found.
The short version
Book the lower rate first, confirm it, then cancel the original. Pay-later reservations usually cancel without a fee; on a prepaid rate, take the cancellation fee off the saving before you rebook.
How to take a lower price on Costco Travel
Book the new rate first, then cancel the original. Verified as of September 29, 2026.
- 1
Book the lower rate on Costco Travel for the same primary driver, and wait for the confirmation email
- 2
Check the new booking before you cancel anything: the total with taxes, the included additional driver (only at participating locations), and add your rental company loyalty number to it
- 3
Then cancel the original: sign in to Costco Travel, open that booking in your account and select Cancel. You can also call 1-866-921-7925 (Mon-Fri 5am-7pm, weekends 6am-5pm Pacific) or cancel with the rental company using your confirmation number
Car rentals booked online at Costco Travel take no prepayment and cancel with no fee, so holding both for a few minutes costs nothing. A cancelled reservation cannot be reinstated, so confirm the new one first. If you booked by phone at a prepaid rate, a cancellation fee may apply.
$45
off your Costco Travel rental, in three simple steps.
With Plot
Or let Plot watch it for you
Stop checking Costco Travel prices yourself. Forward your confirmation once, and Plot watches your rental continuously and tells you when a lower price turns up.
- 01
Forward your confirmation
Forward your Costco Travel rental confirmation to plans@plot.travel. That is the only thing you need to do.
- 02
We watch your rental continuously
Plot keeps comparing your Costco Travel rental with the same car for the same dates, and reads your cancellation terms, so a lower price only counts when rebooking leaves you ahead.
- PlotPrice watch
Your Costco Travel price dropped
How to take the lower price
- 1.Book the lower rate on Costco Travel for the same primary driver, and wait for the confirmation email
- 2.Check the new booking before you cancel anything: the total with taxes, the included additional driver (only at participating locations), and add your rental company loyalty number to it
- 3.Then cancel the original: sign in to Costco Travel, open that booking in your account and select Cancel. You can also call 1-866-921-7925 (Mon-Fri 5am-7pm, weekends 6am-5pm Pacific) or cancel with the rental company using your confirmation number
03Rebook and keep the difference
When the price drops, we tell you the saving and the exact Costco Travel steps: book the new rate, then cancel the original. Both bookings stay in your hands.
Plot sends the steps; you make the new booking and cancel the old one. Price Watch is part of Plot Pro.
Questions
Costco Travel rental price drop FAQ
Common questions about Costco Travel rental price drops and cancellations.
Not on its own. The reliable way to take a lower price is to book the new rate first, then cancel the original reservation.
It depends on how you paid. Rental cars booked online at Costco Travel take no payment at booking, and Costco charges nothing to cancel an online reservation. A prepaid rate booked by phone may carry change or cancellation fees. Check your confirmation before you rebook.
Costco Travel does not guarantee a price adjustment. An agent can check whether the rental company will allow the new price on your booking, but Costco's own instruction for changes is to book and confirm a new reservation, then cancel the previous one.
Costco Travel rentals include an additional driver at no extra charge at participating US Alamo, Avis, Budget and Enterprise locations. Rebook the same car on another site and that driver is no longer included, so count what that driver would cost against the saving.
Plot watches your Costco Travel rental continuously after you forward your confirmation email to plans@plot.travel. When a lower price turns up, we send you the saving and step-by-step instructions for Costco Travel's terms, so you can book the new rate and cancel the original yourself. Price Watch is part of Plot Pro.
Still have questions? Email us
Sources
Read on Costco Travel's own pages on September 29, 2026. Terms change, and the ones on your confirmation are the ones that apply.
