Flights from Ontario to Seattle (ONT → LKE)

ONT
Ontario
Ontario International Airport, USA
LKE
Seattle
Lake Union Sea Plane Base, USA
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No direct or convenient 1-stop flights found between Ontario and Seattle. Try exploring routes from each airport individually.

Frequently asked questions

Are there direct flights from Ontario to Seattle? Currently, there are no direct flights from ONT to LKE. You may need to connect through another airport.

Related guides for this route

Sibling pages from across Flightmaps — fares, visa rules, country aggregations, and per-airline routes for Ontario → Seattle.

Cheap flights from Ontario to Seattle Cheapest month to fly to Seattle Flights from USA Flights to USA Visa-free with USA passport All airports in USA

Try a nearby airport to Ontario

Flights to Seattle (LKE) from other airports within 350 km of Ontario. Often unlocks cheaper fares or better times.

SNA → LKE 48 km from ONT Santa Ana → Seattle USA · 48 destinations LGB → LKE 57 km from ONT Long Beach → Seattle USA · 18 destinations BUR → LKE 71 km from ONT Burbank → Seattle USA · 31 destinations LAX → LKE 75 km from ONT Los Angeles → Seattle USA · 181 destinations VNY → LKE 84 km from ONT Los Angeles → Seattle USA · 9 destinations

Or try a nearby airport to Seattle

Flights from Ontario (ONT) to other airports within 350 km of Seattle.

ONT → SEA 21 km from LKE Ontario → Seattle USA · 139 destinations ONT → PAE 32 km from LKE Ontario → Everett USA · 9 destinations ONT → BLI 131 km from LKE Ontario → Bellingham USA · 7 destinations ONT → YYJ 139 km from LKE Ontario → Victoria Canada · 15 destinations ONT → YVR 185 km from LKE Ontario → Vancouver Canada · 123 destinations

Other flights from Ontario (ONT)

Atlanta (ATL) Austin (AUS) Baltimore (BWI) Boise (BOI) Charlotte (CLT) Chicago (MDW) Chicago (ORD) Dallas (DAL) All 31 destinations →

Other flights from Seattle (LKE)

Vancouver (CXH) Victoria (YWH) All 2 destinations →