United Airlines' 10 Emptiest International Routes: What's Going On? [2026 Update] (2026)

United Airlines' 10 Emptiest International Routes: A Deep Dive into the Data

United Airlines, the US's leading international operator, has some surprising routes that are underperforming in terms of load factors. In this article, I'll take a closer look at the data and offer my analysis and commentary on these routes, exploring the potential reasons behind their low loads and the implications for the airline.

One thing that immediately stands out is the Houston George Bush Intercontinental Airport (IAH) to Georgetown, Guyana route. With just 47.2% of seats filled in the examined period, this route is the worst-performing by load factor. What makes this particularly fascinating is the high-yielding nature of the market, influenced by oil and energy traffic. The airline's website shows that a round-trip ticket for an economy ticket between Georgetown and Houston is usually $1,000+, with business fares being $5,000+. Despite filling less than half of the seats, this probably explains why the frequency has not been reduced — and why the route has not been removed. It'll be good to see if anything changes in the future.

In second place is the Newark Liberty International Airport (EWR) to Nuuk, Greenland route, with just 51.5% of seats filled. This brand-new service, launched in June 2025, has a twice-weekly seasonal service on the 737 MAX 8. Most of the trickle of passengers flew in July and August, but even then, the loads were poor. The best month for traffic was July (2,822 passengers), but just 50.8% of seats were filled. Despite twice-weekly flights, there was way too much capacity available. Oddly, United's schedule submission to Cirium shows it plans 7% more seats for sale in 2026. It is unclear whether the yields or any financial incentives are so strong as to underpin the route. Expect changes in 2027.

In third place is the San Francisco to Panama City route, with just 52.4% of seats filled (39,746 passengers). This route ended in January 2026, having only existed since May 2025, with a daily 737 MAX 8 service throughout its short life. This market remains served by United's close partner, Copa Airlines, with up to 12 weekly services in the remainder of 2026. What this really suggests is that United's route may have been underperforming due to competition from Copa Airlines, which could have been a factor in the decision to end the route.

In fourth place is the San Francisco to Adelaide route, with 52.4% of seats filled (8,867 passengers). This very long link to South Australia only launched in December 2025, with the last departure of the season taking place in March 2026. It was the first nonstop service between North America and Adelaide. Despite not being a full season, barely half of the seats on the brand-new route were filled. Significant funding must underpin it. What makes this interesting is the potential for this route to become a success in the future, as Adelaide is a popular tourist destination and the route could be a gateway for travelers from the US to explore Australia.

In sixth place is the Washington Dulles International Airport (IAD) to Dakar route, with 55.7% of seats filled (24,383 passengers). This route operated between May 2025 and January 2026. What many people don't realize is that Dakar is a popular destination for business travelers, and the route could have been underperforming due to the COVID-19 pandemic, which may have affected travel demand. It's also worth noting that Dakar is a relatively small market, and the route may not have been sustainable in the long term.

In seventh place is the IAD to Barbados route, with 60.6% of seats filled (8,371 passengers). This route is interesting because it is a popular destination for tourists and business travelers alike. What makes this route particularly fascinating is the potential for it to become a success in the future, as Barbados is a popular Caribbean destination and the route could be a gateway for travelers from the US to explore the region.

In eighth place is the Los Angeles to Belize City route, with 61.4% of seats filled (2,636 passengers). This route is interesting because it is a relatively small market, and the route may not have been sustainable in the long term. What makes this route particularly fascinating is the potential for it to become a success in the future, as Belize City is a popular destination for tourists and the route could be a gateway for travelers from the US to explore Central America.

In ninth place is the IAD to Providenciales route, with 63.1% of seats filled (62,001 passengers). This route is interesting because it is a popular destination for tourists and business travelers alike. What makes this route particularly fascinating is the potential for it to become a success in the future, as Providenciales is a popular Caribbean destination and the route could be a gateway for travelers from the US to explore the region.

In tenth place is the IAH to Tampico route, with 63.2% of seats filled (54,370 passengers). This route is interesting because it is a popular destination for business travelers and tourists alike. What makes this route particularly fascinating is the potential for it to become a success in the future, as Tampico is a popular destination in Mexico and the route could be a gateway for travelers from the US to explore the country.

In conclusion, United Airlines' 10 emptiest international routes offer a fascinating insight into the airline's performance and the potential for growth in certain markets. From high-yielding markets to underperforming routes, these routes highlight the challenges and opportunities facing the airline. As an expert in route development, I believe that United Airlines has the potential to turn these underperforming routes into successes, and I look forward to seeing how the airline adapts and evolves in the future.