Washington DC (IAD) to Honolulu (HNL): 4,809 miles (7,740 km) great-circle, about 10h 05m nonstop by our estimate. Cheapest fare observed: $921 round-trip on United Airlines, with 1 stop, departing June 30, 2026.
$921 round-trip, United Airlines UA1868, departing 2026-06-30 at 09:10, returning 2026-07-07. The recorded itinerary left on a Tuesday, returning on a Tuesday 7 nights later; the fare was observed 66 days before departure. "Book this flight" opens Kiwi.com with the same airline and dates.
At $921, it ranked 17th of the 30 round-trip fares we recorded from IAD (median $775). That is 19.2 cents per great-circle mile (round-trip price over one-way distance), below the IAD median of 22.5 cents across 30 round-trip routes.
Routes from IAD of similar length: Moscow (4,853 mi) at $1335 and Istanbul (5,211 mi) at $685.
United Airlines had the cheapest fare on 4 of 30 IAD routes. It is the 12th longest of the 30 routes we track from IAD.
Of 15 departure airports with a fare to Honolulu, Washington DC (IAD) ranked 14th at $921. Lowest: $295 from San Francisco (SFO); highest: $1046 from Wellington (WLG); 3 nonstop. Cheapest-fare airlines (routes): Alaska Airlines (9), American Airlines (2), Frontier (1), Qantas (1), Southwest (1) and United Airlines (1).
Travelpayouts fares (cheapest per route, observed April 25, 2026); OurAirports coordinates and elevations; IANA zones America/New_York, Pacific/Honolulu; flight time is our estimate.