Washington DC (IAD) to Guatemala City (GUA): 1,862 miles (2,996 km) great-circle, about 4h 15m nonstop by our estimate. Cheapest fare observed: $629 round-trip on United Airlines, nonstop, departing June 15, 2026.
$629 round-trip, United Airlines UA1523, departing 2026-06-15 at 17:52, returning 2026-06-22. The recorded itinerary left on a Monday, returning on a Monday 7 nights later; the fare was observed 51 days before departure. "Book this flight" opens Kiwi.com with the same airline and dates.
At $629, it ranked 13th of the 30 round-trip fares we recorded from IAD (median $775). That is 33.8 cents per great-circle mile (round-trip price over one-way distance), above the IAD median of 22.5 cents across 30 round-trip routes.
Routes from IAD of similar length: San Salvador (1,899 mi) at $275 and San Juan (1,574 mi) at $632.
United Airlines had the cheapest fare on 4 of 30 IAD routes. It is the 20th longest of the 30 routes we track from IAD.
Of 13 departure airports with a fare to Guatemala City, Washington DC (IAD) ranked 11th at $629. Lowest: $225 from Cancun (CUN); highest: $796 from Chicago (MDW); 3 nonstop. Cheapest-fare airlines (routes): United Airlines (3), Copa (2), Frontier (2), Alaska Airlines (1), American Airlines (1) and Avianca (1), plus 3 more.
Travelpayouts fares (cheapest per route, observed April 25, 2026); OurAirports coordinates and elevations; IANA zones America/New_York, America/Guatemala; flight time is our estimate.