Seattle (SEA) to Banjul (BJL): 6,249 miles (10,056 km) great-circle, about 13h 00m nonstop by our estimate. Cheapest fare observed: $1554 round-trip on Turkish, with 1 stop, departing April 27, 2026.
$1554 round-trip, Turkish TK204, departing 2026-04-27 at 19:10, returning 2026-05-29. The recorded itinerary left on a Monday, returning on a Friday 32 nights later; the fare was observed 2 days before departure. "Book this flight" opens Kiwi.com with the same airline and dates.
At $1554, it ranked 28th of the 30 round-trip fares we recorded from SEA (median $591). That is 24.9 cents per great-circle mile (round-trip price over one-way distance), above the SEA median of 19.2 cents across 30 round-trip routes.
Routes from SEA of similar length: Tashkent (6,267 mi) at $1551 and Istanbul (6,055 mi) at $1172.
SEA to BJL is the only one of 30 SEA routes where Turkish priced cheapest. It is the 4th longest of the 30 routes we track from SEA.
Of 2 departure airports with a fare to Banjul, Seattle (SEA) ranked 2nd at $1554. Lowest: $883 from Milan (MXP); highest: $1554 from Seattle (SEA); 0 nonstop. Cheapest-fare airlines (routes): Ryanair (1) and Turkish (1).
Travelpayouts fares (cheapest per route, observed April 25, 2026); OurAirports coordinates and elevations; IANA zones America/Los_Angeles, Africa/Banjul; flight time is our estimate.