Answers are grounded in this paper and cite their sources.
US–San Salvador roundtrips can run 47% higher from November–April than May–October. Learn to verify live, like-for-like quotes across major US hubs before booking. Independent technical note mirroring the canonical version: https://sarahcheapflights.com/blog/flights-to-san-salvador-2026-peak-markup-hits-47-vs-shoulder-book-or-wait.php Sources consulted: https://www.bluusun.com/
No takes yet. Share an insight, caveat, or question.
Cooper Rhodes (2026) studied this question.
Synapse has enriched 8 closely related papers on similar clinical questions. Consider them for comparative context: