Photo by Ontario Convention & Visitors Bureau / Jon Edwards.

Cheap American Airlines flights Washington (IAD) to Ontario (ONT)
Prices were available within the past 7 days and start at for one-way flights and $686 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Sun, Dec 28 - Sat, Jan 10
IAD
Washington
ONT
Ontario
$686 Roundtrip, found 3 days ago
$686
Roundtrip
found 3 days ago
Find the cheapest month to fly from Washington (IAD) to Ontario (ONT)
September is typically the cheapest month to fly
From $181 - $626 per traveler.
Origin airport | Washington Dulles Intl. |
|---|---|
Destination airport | Los Angeles - Ontario Intl. |
Distance | 3578 km |
Most Popular American Airlines Routes from Washington
Most Popular American Airlines Routes from Ontario
- Norfolk to New York (ORF - JFK)
- Grand Island to Los Angeles (GRI - LAX)
- Seattle to Phoenix (SEA - PHX)
- Albany to Santo Domingo (ALB - SDQ)
- Atlanta to New York (ATL - LGA)
- New York to Fort Lauderdale (LGA - FLL)
- Syracuse to Myrtle Beach (SYR - MYR)
- El Paso to Tel Aviv (ELP - TLV)
- Orlando to Hilo (MCO - ITO)
- Atlanta to Honolulu (ATL - HNL)
Popular Domestic Routes in Los Angeles - Ontario Intl.
- Denver to Ontario (DEN - ONT)
- Detroit to Houston (DTW - HOU)
- Syracuse to Myrtle Beach (SYR - MYR)
- Syracuse to Myrtle Beach (SYR - MYR)
- Washington to Orlando (DCA - MCO)
- Albany to Santo Domingo (ALB - SDQ)
- Detroit to Houston (DTW - IAH)
- Atlanta to New York (ATL - LGA)
- Norfolk to New York (ORF - JFK)
- El Paso to Tel Aviv (ELP - TLV)