Is It Cheaper to Fly or Drive This Summer? - NerdWallet (2024)

With the cost of everything rising faster and faster, it can be hard to build a reliable travel budget. Will gas prices rise or fall by the summer? And will airfare costs keep pace?

The question of whether it’s cheaper to fly or drive is an old travel conundrum, but the many factors affecting travel in 2024 make it a challenging one to answer simply.

Three things stand out:

Of course, many factors beyond cost affect the decision to fly or drive. But given the rising costs of travel and its impact on planning and budgeting, we’ll focus on the finances.

The effect of fuel costs

Rising oil prices have driven up the cost of fuel and, in turn, the cost of both driving and flying. But the way oil prices affect these costs varies.

Increased gasoline prices instantly and directly affect the cost of driving. A road trip that burns 100 gallons of gas will cost $100 more if a gallon of gas increases by a buck.

The impact is not so clear for airfare. Some experts estimate that jet fuel accounts for about 30% of airlines’ operating expenses, according to the most recent Consumer Airfare Index Report from travel booking platform Hopper. And increases in airfare usually lag increases in fuel costs, as airlines buffer the blow for consumers.

Basically, rising fuel costs affect the overall price of road trips more than they do airfare prices.

Crunching the numbers

Comparing the costs of driving and flying is relatively simple but can begin to feel like a middle school math problem in a hurry. To keep it simple, let’s compare three trips:

According to the Environmental Protection Agency, an independent agency of the federal government, the average fuel efficiency of a vehicle sold in 2021 was 25.4 miles per gallon. (More fuel-efficient vehicles will have lower costs, of course, and electric vehicles are a whole other ball of wax.)

The average price of a gallon of gasoline was $3.45 in March 2023 according to the AAA, a federation of motor clubs throughout North America. Finally, also per AAA, the average maintenance cost of driving a medium sedan is about 10 cents per mile.

So we’ll use those as the variables on the driving part of our word problem.

For the airfare, we’ll compare the average cost of a main cabin flight for the week of July 4th. We’ll also tack on $39 in add-on fees for baggage and seat assignments, the average for full-service airlines according to a NerdWallet analysis on which airlines have the best and worst fees.

Here’s how it shakes out:

For the shortest trip, driving is slightly more economical than flying. But for the longer cross-country trip, flying is far cheaper.

And keep in mind that this only considers solo drivers. Families or friends traveling in one vehicle can save money by driving, even on longer routes. But this analysis does not take into account the other costs of driving, such as hotel rooms or fast food stops along the way.

Rental car costs remain high

Another important factor to consider is the cost of renting a car. The average cost of a car or truck rental today is up 16.5% in January 2024 versus January 2020, according to the Bureau of Labor Statistics and NerdWallet inflation travel price analysis. Prices are dropping since last summer but remain at budget-busting levels.

The upshot, from a financial perspective, is simple: Don’t rent a car if you can avoid it.

This has an interesting impact on the decision to fly or drive. Obviously renting a car to drive long distances should be a last resort. But it could also add considerable costs for those who fly with plans to rent a car at their destination.

In other words, driving a car you own might make financial sense if it eliminates the cost of an expensive rental at the airport. Especially for short and medium trips, or trips to vacation destinations where rental cars could be especially expensive, this cost could tip the scales in favor of driving over flying.

Regardless of your mode of transport: Consider travel insurance

If you are forking out the big dollars to travel this summer, consider booking your trip with a card that has travel insurance or purchasing a supplementary policy from a third-party insurance provider, like Allianz or World Nomads.

Travel insurance can help you get money back for canceled or interrupted trips. It can also fund expenses like additional clothing if your luggage gets lost or an extra hotel room if you need to stay overnight due to a flight delay.

Read the policy, though, as many plans come to your rescue only if you experience a covered reason.

The bottom line

We only compared the cost of driving versus flying this summer overall. Every trip is different and everyone has different travel preferences.

But it’s safe to say that the cost savings of flying grow with the length of the trip. Flying long distances can save you a bunch when traveling solo.

And while renting a car remains prohibitively expensive, your plans should adjust accordingly. Flying to a destination only to rent a car will eat into any potential savings, making it potentially worthwhile to drive instead.

Use this analysis as a template for your own cost-benefit breakdown. Estimate the cost of driving, look up the airfare, add on any extras like roadside hotels and rental cars, and make the call. Hurry — summer is almost here.

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