Southwest Airlines (WN) has officially eliminated 11 international routes from its network, effective from June 2026, Simple Flying reported as it quoted data from Cirium. All 11 axed services connect U.S. departure cities to leisure sun destinations across Mexico, the Caribbean, and Central America — markets where the airline has struggled to generate consistent, high-load-factor operations. The cuts affect cities including Chicago, Baltimore, Fort Lauderdale, Indianapolis, Kansas City, Milwaukee, Nashville, Colorado Springs, and St. Louis.
Since its inaugural international flight in July 2014, Southwest has transported nearly 40 million international passengers — yet that traffic has never exceeded 2% of the airline’s total ridership. In 2025 alone, international passenger volumes fell 12% compared to the 2018 record, against an 18% reduction in international flights.
Southwest Airlines’ Declining International Footprint
Southwest’s international ambitions have always occupied a peripheral role in its commercial strategy. The airline first entered international service in July 2014, launching flights to Aruba, Montego Bay, and Nassau — three quintessential leisure markets that suited its point-to-point operating model. Over the following decade, international traffic grew modestly but never commanded the same unit economics as the carrier’s dense domestic network.
U.S. Department of Transportation (DOT) data confirms that international travel accounted for just 2% of Southwest’s total traffic in the 12 years since that inaugural service. This is a strikingly low figure for a carrier that operates over 4,000 daily flights and serves more than 100 destinations.
The data reflects a pattern of steady withdrawal rather than sudden collapse. Traffic declined 12% from the 2018 peak, compounded by an 18% drop in international flight volume.
The First Four Cuts Are Baltimore, Chicago, And Colorado Springs
The first group of four eliminations from the axed 11 international routes involves departures from:
- Baltimore/Washington International Thurgood Marshall Airport (BWI)
- Chicago Midway International Airport (MDW)
- Chicago O’Hare International Airport (ORD)
- Colorado Springs Airport (COS).
Southwest operated Baltimore–Los Cabos from June 2015 until April 2026, and Chicago Midway–Los Cabos from November 2018 until April 2026. The ORD–Cancún International Airport (CUN) route operated from November 2021 until April 2026. Southwest is withdrawing from ORD entirely in June 2026, consolidating its Chicago operations at MDW, which ranks as the airline’s fourth most-served airport by departures.
Colorado Springs–Cancún was perhaps the most telling of this group. The route launched in June 2025 and survived less than a year, earning the distinction of carrying the fourth-lowest load factor across Southwest’s entire network.
It was Colorado Springs’ first — and apparently only — international market. DOT data quoted by Simple Flying further shows that the ORD–CUN load factor fell to 83.4% in 2025, its lowest level in four years — a modest figure that nonetheless failed to justify the operational cost of maintaining service.
Seven More Routes Withdrawn: Fort Lauderdale, Indianapolis, Kansas City, Milwaukee, Nashville, And St. Louis
Seven additional international markets round out the 11 eliminated routes, and several carry distinguishing characteristics that merit closer examination. Fort Lauderdale–Hollywood International Airport (FLL) to Sangster International Airport (MBJ) in Montego Bay, Jamaica, operated from June 2017 through November 2025, making it one of the longer-tenured casualties in this round of cuts. The termination of Jamaica service across multiple U.S. gateways plausibly reflects the downstream impact of hurricane disruptions on inbound tourist demand.
Indianapolis International Airport (IND)–Los Cabos and Nashville International Airport (BNA)–Montego Bay both operated as weekly Saturday flights in March and April 2026 only — hyperlocal seasonal services with minimal operational footprint. Their elimination is unsurprising; such thin-frequency routes rarely generate sufficient revenue contribution to justify year-round infrastructure maintenance. Kansas City International Airport (MCI)–Montego Bay operated from October 2023 through April 2026, a two-and-a-half-year tenure that failed to establish meaningful demand.
Milwaukee Mitchell International Airport (MKE)–Cancún operated from August 2014 through April 2026, representing one of the longest-standing routes in this group — over a decade of service that ultimately could not survive the carrier’s profitability mandate. Nashville–San José (Costa Rica) and St. Louis Lambert International Airport (STL)–Puerto Vallarta operated with extreme rarity, the latter recording only two departures in March 2026. Simple Flying notes that Saturday-only services of this nature could theoretically return in 2027 in a seasonal capacity, though nothing has been confirmed.
Southwest’s 65 Routes Remain, But Volume Varies Wildly
Despite the 11 eliminations, Southwest retains a meaningful international presence heading into Q3 2026. Cirium data shows that Southwest has scheduled 65 international routes for Q3 2026, operated from 21 U.S. airports. The network will average approximately 40 daily international departures during the quarter, though operations vary significantly by day of the week.
Tuesdays and Wednesdays will see as few as 22 outbound international flights, while Saturdays could record up to 87 departures — a figure heavily inflated by Saturday-only routes, which remain a structural feature of Southwest’s leisure-oriented international network.
The five most active airports for international service in Q3 are Orlando International Airport (MCO) with up to 829 weekly departures, William P. Hobby Airport (HOU) in Houston with up to 792, Baltimore/Washington International with up to 582, Phoenix Sky Harbor International Airport (PHX) with up to 256, and Denver International Airport with up to 183.
Atlanta Hartsfield–Jackson International Airport (ATL) sits at the other end of the spectrum, with only four international departures planned — all to Cancún, spread across July 11, 18, 25, and August 1.
The contrast between Orlando’s density and Atlanta’s near-absence illustrates the degree to which Southwest’s international network has consolidated around its strongest leisure corridors rather than attempting broad geographic coverage.
