Did you mean Flights from Ontario to Seattle?
Seattle
United StatesSEA
Seattle Tacoma International Airport
Ontario
United StatesONT
Ontario International Airport
Seattle Tacoma International Airport (SEA) serves Seattle; Ontario International Airport (ONT) serves Ontario.
The airports are 957 miles apart by great-circle distance.
Roame's current schedule feed shows nonstop service from SEA to ONT.
Marketing airlines listed in the current schedule, including codeshare sellers, are Air France (AF), Alaska Airlines (AS), Delta Air Lines (DL), Frontier Airlines (F9), Icelandair (FI), Hawaiian Airlines (HA), Japan Airlines (JL), Korean Air (KE), KLM (KL), Qatar Airways (QR), Scandinavian Airlines (SK), United Airlines (UA), Virgin Atlantic (VS), Southwest Airlines (WN), WestJet (WS) and Volaris (Y4). This list does not identify the operating airline for each flight; check the flight details before booking.
Published schedule dates span Sep 21, 2026 – Sep 19, 2027.
These are marketing airlines, including codeshare sellers. This list does not identify the operating airline for each flight; check the flight details before booking.
Airline alliance affiliations represented: Oneworld, SkyTeam, Star Alliance
Seattle Tacoma International Airport (SEA) is the origin airport and Ontario International Airport (ONT) is the destination airport.
SEA and ONT are approximately 957 miles apart by great-circle distance.
Yes. Roame's current schedule feed shows nonstop service from SEA to ONT.
Marketing airlines listed in the current schedule, including codeshare sellers, are Air France (AF), Alaska Airlines (AS), Delta Air Lines (DL), Frontier Airlines (F9), Icelandair (FI), Hawaiian Airlines (HA), Japan Airlines (JL), Korean Air (KE), KLM (KL), Qatar Airways (QR), Scandinavian Airlines (SK), United Airlines (UA), Virgin Atlantic (VS), Southwest Airlines (WN), WestJet (WS) and Volaris (Y4). This list does not identify the operating airline for each flight; check the flight details before booking.
Aircraft listed in the current schedule include Airbus A220-300 (223), Airbus A319 (319), Airbus A320 (320), Airbus A321 (321), Airbus A320neo (32N), Airbus A321neo (32Q), Boeing 737-900 / Boeing 737-900ER (739), Boeing 737-700 / Boeing 737-700ER (73G), Boeing 737-800 Winglets (73H), Boeing 737-900 Winglets (73J), Boeing 737 MAX 8 (7M8), 7S7, Embraer 175 (long wing) (E7W) and JET.
A sample of one-way prices for one traveler from Roame’s fare cache. Points, fees, and seats describe the same observation. Availability can change; confirm with the loyalty program before transferring points.
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