Featured airlines
- Be in the knowGet alerts if flight prices drop or rise*
- Book smarterSave up to 30% on select hotels after you book a flight*
Cheap Flights from Washington to Ontario (IAD-ONT)
Prices were available within the past 7 days and start at $144 for one-way flights and $289 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.
Origin airport | Washington Dulles Intl. |
Destination airport | Los Angeles - Ontario Intl. |
Airlines serving | Alaska Airlines, American Airlines, Delta, United |
Roundtrip price | $288 |
Distance | 2236 mi |
Washington to Ontario Flights
Whether you’re looking for a grand adventure or just want to get away for a last-minute break, flights from Washington to Ontario offer the perfect respite. Not only does exploring Ontario provide the chance to make some magical memories, dip into delectable dishes, and tour the local landmarks, but the cheap airfare means you won’t bust your budget. So no matter whether your ideal itinerary involves flying one way, non-stop, or round trip, you’re bound to find flights that match your schedule on Expedia, and at prices that won’t shock your wallet.
Bagging a cheap flight from Washington to Ontario may mean more dollars to spend on for one-of-a-kind souvenirs when you arrive, but it doesn’t mean you have to skimp on your travel experience, as Expedia offers a sizzling selection of cheap airlines that’ll put you in your happy place on their planes, whether that’s getting lost in a hair-raising airport thriller, dreaming on the passing landscape over a glass of bubbly, or jotting down your vacation bucket list at 38,000 feet. There’s also bound to be plenty of opportunities to snap a few photos of the high life that will make your friends green with envy. After all, enjoying the journey is part of the fun.
With so many affordable flights and so many wonderful adventures awaiting you, there’s no reason to put off booking a fantastic flight from to today. So don’t leave it to the last minute to make your dream trip a reality: pack your bags with your go-to travel accessories, put together your list of must-see attractions and can’t-miss activities, and get ready to broaden your horizons – with Expedia, the wonders of Ontario are only a plane trip away. Book your travel arrangements with us today!
If you would like to book flights to Ontario more flexibly many prefer to purchase one-way tickets with options to take different airlines. A one way ticket to Ontario is $144 now!
Frequently asked questions
- Trending Routes
- Trending Flights
- Top Flights Destinations
- More Popular Airlines
- Nearby Airports
- Flights From Other Airports
- Expedia's Latest Trends
Top Routes from Washington
- Washington to London (IAD - LCY)
- Washington to Punta Cana (IAD - PUJ)
- Washington to Paris (IAD - CDG)
- Washington to Delhi (IAD - DEL)
- Washington to London (IAD - STN)
- Washington to Seattle (IAD - SEA)
- Washington to Tokyo (IAD - NRT)
- Washington to Madrid (IAD - MAD)
- Washington to Hyderabad (IAD - HYD)
- Washington to Rome (IAD - FCO)
- Washington to London (IAD - LHR)
- Washington to Lisbon (IAD - LIS)
Top Routes to Ontario
- Chicago to Ontario (ORD - ONT)
- Phoenix to Ontario (PHX - ONT)
- Newark to Ontario (EWR - ONT)
- Portland to Ontario (PDX - ONT)
- New York to Ontario (LGA - ONT)
- Salt Lake City to Ontario (SLC - ONT)
- Denver to Ontario (DEN - ONT)
- Sacramento to Ontario (SMF - ONT)
- Seattle to Ontario (SEA - ONT)
- New York to Ontario (JFK - ONT)
- Dallas to Ontario (DAL - ONT)
- Houston to Ontario (IAH - ONT)
Top Routes from Washington
Top Routes to Ontario
- American Airlines Chicago to Ontario
- Delta Newark to Ontario
- Alaska Airlines Portland to Ontario
- Frontier Airlines Denver to Ontario
- Alaska Airlines Sacramento to Ontario
- Alaska Airlines Seattle to Ontario
- JetBlue Airways New York to Ontario
- Frontier Airlines Dallas to Ontario
- Frontier Airlines Orlando to Ontario
Top Flight Destinations
- Flights to Las Vegas
- Flights to New York
- Flights to Orlando
- Flights to Panama City Beach
- Flights to Chicago
- Flights to San Diego
- Flights to Myrtle Beach
- Flights to Los Angeles
- Flights to Destin
- Flights to Miami
- Flights to Nashville
- Flights to Boston
- Flights to Houston
- Flights to Honolulu
- Flights to San Francisco
- Flights to Key West
- Flights to New Orleans
- Flights to Atlanta
- Flights to Seattle
- Flights to Fort Lauderdale
Los Angeles
Burbank
Long Beach
Orange County
Baltimore
Washington
Nearby Airports
- Manassas Regional Airport (MNZ)
- Montgomery County Airpark Airport (GAI)
- Ronald Reagan Washington National Airport (DCA)
- College Park Airport (CGS)
- Tipton Airport (FME)
- Eastern West Virginia Regional Airport (MRB)
- Baltimore Washington Intl. Thurgood Marshall Airport (BWI)
- Hagerstown Regional Airport (HGR)
- Martin State Airport (MTN)
- Easton - Newnam Airport (ESN)