How to use the airport parking vs rideshare calculator
- Enter the days parked and the parking price per day. Add any one-time parking fees and, in More options, the miles to the lot and your cost per mile.
- Enter the number of rides, usually two for a round trip, and the fare per ride. The 18 and 42 dollar values shown are examples; check your app for an estimate.
- Open More options to add a tip and an airport fee for each ride.
- Read both totals, which one costs less and the break-even number of days at which the two cost the same.
Formula
Parking total = days x daily price + fees + miles to the lot x 2 x cost per mile
Rideshare total = rides x (fare x (1 + tip %) + airport fee)
Break-even days = (rideshare total - fees - driving cost) / daily price
Break-even is the number of days of parking at which parking and rideshare cost the same. Parking costs less for a shorter trip and rideshare costs less for a longer one when the fare is fixed.
Five days away, an $18 lot and $42 rides
Driving to the lot and back is 12 miles each way at $0.20 a mile, or $4.80. Parking costs 5 x $18 + $4.80 = $94.80. Two rides at $42 with a 15 percent tip cost 2 x $48.30 = $96.60. Parking costs less by $1.80, and the break-even is (96.60 - 4.80) / 18 = 5.1 days. A 3 day trip favors parking by $37.80, and a 7 day trip favors rideshare by $34.20.
A two-week trip with a $25 lot, a $10 fee, 20 miles each way at $0.30 a mile, and two $55 rides with a 20 percent tip and a $5 airport fee gives parking of $372.00 against $142.00 for rideshare, a $230.00 saving, with a break-even of 4.8 days.
What changes the answer
The length of the trip drives the result, because a rideshare costs the same whether you are away two days or twenty, while parking grows every day. Prices matter too: fares rise with demand and distance, and off-site lots, shuttles and discounts can bring the daily price down. Some lots charge by the calendar day, others by 24-hour blocks, so count days the way your lot bills. Add any tolls or shuttle fees to the one-time fees.
If you are deciding how early to leave, the When to Leave for the Airport Calculator works backward from your flight. For a longer-term choice, the Monthly Parking vs Daily Calculator compares a pass with day rates.
Things the price does not capture
Time, comfort and risk are not in the figure. Parking means walking to a terminal with bags and finding your car on return, and a rideshare adds a wait for a driver and a risk of delay at peak times. Weigh those as you like. For other ways of getting to your trip, the Rental Car vs Rideshare Calculator and the Drive vs Fly Calculator compare options at the other end.
Assumptions and limits
- The parking price, fares, tip and fees are numbers you enter. The values shown are examples.
- The tip is a percentage of the fare only. The airport fee is added after the tip.
- Driving to the lot is counted both ways at the cost per mile you enter.
- The calculation stays in your browser.
Frequently asked questions
Is it cheaper to park at the airport or take a rideshare?
For a short trip parking is often cheaper, and for a long one a rideshare usually wins. The break-even shows the number of days where they cost the same at your prices.
How is the break-even worked out?
It takes the rideshare total, removes the one-time fees and driving cost that you pay either way, and divides by the daily parking price. A trip longer than that favors a rideshare.
Should I count the drive to the lot?
If the lot is off site or far from home, yes. Enter the miles and your cost per mile in More options, or leave them at zero if you want parking prices only.
Why does the page say free daily parking has no break-even?
With no daily price, parking never gets more expensive as the trip gets longer, so there is no crossover point.