Flights from Dulles to Ontario

Did you mean Flights from Ontario to Dulles?

Dulles

United States

IAD

Washington Dulles International Airport

Ontario

United States

ONT

Ontario International Airport

Route: Published service includes stops
Distance: 2,237 miles
Marketing airlines: 1 airline
Aircraft: 1 aircraft type
Dates: Mar 4 – Oct 17, 2027

Observed award fares

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.

Departure window: 2026-10-23 – 2026-11-21.

No recent fares appear in this limited preview. This does not mean the route is sold out. Use the search controls to check other dates and routes.

Dulles to Ontario route overview

Washington Dulles International Airport (IAD) serves Dulles; Ontario International Airport (ONT) serves Ontario.

The airports are 2,237 miles apart by great-circle distance.

Roame's current schedule feed lists service with stops from IAD to ONT, but no nonstop service.

Marketing airlines listed in the current schedule, including codeshare sellers, are United Airlines (UA). This list does not identify the operating airline for each flight; check the flight details before booking.

Published schedule dates span Mar 4 – Oct 17, 2027.

Marketing airlines on the Dulles to Ontario route

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: Star Alliance

Aircraft flying from IAD to ONT

Frequently asked questions

Which airports serve the Dulles to Ontario route?

Washington Dulles International Airport (IAD) is the origin airport and Ontario International Airport (ONT) is the destination airport.

How far is Ontario from Dulles?

IAD and ONT are approximately 2,237 miles apart by great-circle distance.

Are there direct flights from IAD to ONT?

No. Roame's current schedule feed lists service with stops from IAD to ONT, but no nonstop service.

Which airlines market flights from IAD to ONT?

Which aircraft fly from IAD to ONT?

Aircraft listed in the current schedule include Boeing 737-900 / Boeing 737-900ER (739).