Gas prices are rising sharply as the May 10 weekend approaches, with the national average hitting $4.55 per gallon as of May 7, 2026—a jump of 25 cents for the second consecutive week. For travelers planning Memorial Day weekend getaways, this marks a significant cost increase compared to last year, when gas averaged just $3.15 per gallon. A family of four driving a sedan that gets 25 miles per gallon will now spend approximately $72.80 to fill up a 15-gallon tank, compared to $47.25 one year ago—an additional $25.55 per fill-up for the same vehicle on the same route.
These price increases are driven primarily by geopolitical disruptions affecting global oil supply. The suspension of traffic through the Strait of Hormuz since early March 2026 has disrupted the flow of approximately 20 million barrels per day of oil and refined fuel destined for importing nations, creating a supply crunch that is being felt at pumps across America. Despite these headwinds, 85 to 90 percent of weekend travelers still plan to drive for holiday trips, suggesting that high gas prices alone are not deterring vacation plans—though they are certainly impacting vacation budgets.
Table of Contents
- How Much Higher Are Gas Prices for This Weekend’s Road Trip?
- Geographic Price Disparities—Why Your State’s Gas Costs May Look Very Different
- The Geopolitical Root Cause—Why Strait of Hormuz Disruption Hits American Pumps
- Budgeting a Road Trip in May 2026—Practical Cost Planning
- Supply Chain Warnings—How Long Will These Prices Persist?
- Comparing May 2026 Prices to Historical Context
- Summer Travel Outlook and Planning Implications
- Conclusion
How Much Higher Are Gas Prices for This Weekend’s Road Trip?
The $1.40 per-gallon increase compared to May 2025 represents a 44 percent jump in fuel costs year-over-year. This is the highest price level since 2022, when the national average briefly spiked to $5.01 per gallon during another period of supply disruption. For a typical 500-mile round-trip road trip, the difference between last year’s prices and today’s prices amounts to approximately $35 in additional fuel costs for a vehicle averaging 25 miles per gallon.
The momentum is concerning because prices have been rising consistently rather than stabilizing. Two consecutive weeks of 25-cent increases suggest that the supply situation from the Strait of Hormuz disruption has not yet begun to ease. Industry analysts note that oil markets typically take 4 to 8 weeks to fully adjust to major supply shocks, meaning consumers may see further increases before relief arrives at the pump.
Geographic Price Disparities—Why Your State’s Gas Costs May Look Very Different
The national average masks enormous regional variation that directly affects road trip planning. California drivers face $6.16 per gallon—the highest in the nation—while Oklahoma drivers pay just $3.98 per gallon. This $2.18 difference means that California residents pay more than 55 percent more per gallon than Oklahoma residents, a disparity that compounds dramatically on longer trips. A 600-mile road trip from Los Angeles to San Francisco costs approximately $150 more in fuel than the same distance in Oklahoma, using the current may 2026 prices.
Five states have prices exceeding $5.20 per gallon: California ($6.16), Washington ($5.76), Hawaii ($5.66), Oregon ($5.34), Nevada ($5.23), and Alaska ($5.21). These prices reflect not only the global supply shock but also state-specific factors: California’s stricter fuel formulations for emissions control, Hawaii’s reliance on barge fuel deliveries, and Alaska’s geographic isolation all contribute to premium pricing. Conversely, Southern states with lower production costs and simpler fuel specifications—Oklahoma, Mississippi, Louisiana, and Arkansas—all cluster around the $4.00 mark, creating a $2-per-gallon difference between the cheapest and most expensive regions. For weekend travelers, this geographic variation suggests that the location of your road trip destination significantly impacts fuel costs. A family choosing to vacation within a low-priced state will spend considerably less on gas than one crossing multiple states, especially if transit includes California or the Pacific Northwest.
The Geopolitical Root Cause—Why Strait of Hormuz Disruption Hits American Pumps
The Strait of Hormuz, a 21-mile-wide chokepoint between Iran and Oman, normally handles approximately 20 percent of global petroleum trade. When traffic through the Strait was suspended in early March 2026, the interruption disrupted the flow of roughly 20 million barrels per day of oil and refined fuel products destined for nations worldwide. Though the United States is not dependent on Middle Eastern oil imports due to domestic production, American oil companies export crude and refined products globally, and the market price they receive is set by worldwide supply and demand. When global supply contracts, prices rise everywhere, including at American pumps. The Strait disruption removed a major supply source from global markets at a moment when demand remained steady, creating an immediate pricing pressure that refineries passed along to consumers.
This illustrates a critical reality: U.S. gas prices are not determined solely by American supply and demand but by global markets where American oil competes. The timing amplifies the pain for weekend travelers. The suspension occurred during spring, heading into the peak summer driving season when demand is already rising. Typically, demand increases gradually from March through July, but the supply shock hit before that seasonal demand surge was fully underway, trapping prices at elevated levels heading into the May 10 weekend and beyond.
Budgeting a Road Trip in May 2026—Practical Cost Planning
For families planning a May 10 weekend trip, the math is straightforward but sobering. A 300-mile round-trip road trip in a vehicle averaging 22 miles per gallon requires approximately 14 gallons of fuel. At the national average of $4.55 per gallon, that trip costs $63.70 in fuel alone. The same trip in California costs approximately $86.24, while the same trip in Oklahoma costs just $55.72. These numbers assume steady highway driving without city traffic, which typically reduces fuel efficiency by 10 to 20 percent, further increasing costs for urban portions of the journey. Hotels and food remain the larger line items for most road trips, but fuel now represents a meaningful portion of the total budget for families planning multi-state journeys.
Couples or small families traveling 600 miles should budget an additional $40 to $60 for fuel compared to pre-disruption prices. This trade-off often forces choices: some families may opt for shorter trips, drive less frequently, or adjust hotel plans to offset the fuel cost increase. One practical consideration is the timing of refueling within your journey. Drivers passing through multiple states should check prices along their route and refuel in lower-priced states when possible. A driver traveling from Nevada ($5.23) to Oregon ($5.34) might benefit from filling up entirely in Nevada before crossing the border. Similarly, travelers planning California trips might refuel just before entering the state in Nevada or Arizona ($5.18) where prices are roughly $0.50 per gallon lower.
Supply Chain Warnings—How Long Will These Prices Persist?
The critical unknown is how long the Strait of Hormuz disruption will last and whether alternative supply routes can compensate for the lost volume. Global petroleum markets are remarkably adaptable, and alternative pipelines and alternative suppliers may eventually absorb the lost throughput, but the process takes time. Most industry forecasters expect elevated prices to persist through the summer, with modest relief potentially arriving in fall 2026 if the situation stabilizes. A significant limitation in predicting future prices is the interconnected nature of global energy markets.
A secondary disruption—a hurricane in the Gulf of Mexico, an unexpected refinery outage, or a shift in OPEC production strategy—could further tighten supplies and push prices higher. Consumers should recognize that the $4.55 national average is not necessarily a ceiling; prices could easily reach $4.75 or $5.00 if conditions worsen. Conversely, if the Strait situation resolves faster than expected, prices might decline toward $4.00 by late summer. Weekend travelers should avoid the assumption that current prices represent stable baseline costs for summer planning. The volatility of oil markets means that fuel costs could shift 10 to 25 cents per gallon within one to two weeks, making it prudent to monitor prices weekly and adjust vacation timing or routes accordingly if prices spike further.
Comparing May 2026 Prices to Historical Context
The $4.55 national average is substantially below the 2022 peak of $5.01 per gallon, but it is also substantially above the five-year average of roughly $3.20 per gallon from 2020 to 2024. This context matters because it illustrates the persistence of elevated prices. We are not at a record high, but we are at a level last seen four years ago, and the comparison to one year ago ($3.15) is particularly painful for consumers who enjoyed lower prices during 2024 and early 2025.
The psychological impact of this comparison should not be underestimated. Consumers who adjusted vacation budgets downward during the low-price years of 2024 and 2025 may find themselves scrambling to absorb the $1.40 year-over-year increase as they finalize May 10 weekend plans. This rapid shift is more disruptive than a sustained high-price environment where consumers have time to adjust expectations and planning.
Summer Travel Outlook and Planning Implications
The May 10 weekend marks the unofficial launch of the American summer driving season. With 85 to 90 percent of weekend travelers still planning to drive despite high prices, demand is unlikely to collapse from the $4.55 level alone. This suggests prices may remain sticky around current levels through June, July, and August, creating sustained high-cost conditions across the summer vacation window.
Families with flexibility in their vacation timing might benefit from planning trips for early October or late August if prices decline as expected. Those locked into summer vacation schedules should consider the fuel costs as non-negotiable budget items and adjust other spending categories accordingly. The key insight is that high gas prices are not a temporary anomaly but a structural condition expected to persist until the global supply situation stabilizes, likely sometime in fall 2026 or later.
Conclusion
Gas prices at $4.55 per gallon as of May 7, 2026, represent a significant cost increase for weekend road trips, driven primarily by the Strait of Hormuz supply disruption that has persisted since early March. The $1.40 year-over-year increase is particularly acute for families whose vacation budgets were calibrated to 2025 prices, and the geographic variation—from $3.98 in Oklahoma to $6.16 in California—means that route choice directly impacts total fuel costs.
Weekend travelers planning their May 10 getaway should budget for elevated fuel costs, monitor prices along their intended route, and consider whether timing flexibility might allow them to postpone higher-cost portions of their summer travel. The disruption in global oil supply is expected to persist through the summer, suggesting that consumers should plan accordingly rather than expecting rapid relief at the pump.