Cheap flights from Washington, D.C. to Ontario

Flights starting at £178. Choose between American Airlines, United Airlines, or Frontier Airlines to find the best price.

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Tips to know when travelling to Ontario

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Travelers usually depart from Baltimore–Washington International, Washington Dulles International, Ronald Reagan Washington National, Washington, DC - Union Station, or Washington DC - Parking Convention Center DC when they travel from Washington, D.C. to Ontario. Book your trip to arrive at Ontario International, Ontario, CA station, Ontario Bus Stop, or Montclair (Ontario). The most popular airlines for this route are American Airlines, United Airlines, Frontier Airlines, Delta Air Lines, and Spirit Airlines. Washington, D.C. and Ontario have 345 direct flights per week.

Check-in for a flight from Washington, D.C. to Ontario

NameCarrier codeIATA CodePassport needed during bookingOnline check-in available
American AirlinesAALAAYesNo
United AirlinesUALUAYesNo
Frontier AirlinesFFTF9NoOpens 24 days before flight
Closes 1 hours before flight
Delta Air LinesDALDLYesOpens 24 days before flight
Closes 1 hours before flight
Spirit AirlinesNKSNKNoOpens 24 days before flight
Closes 1 hours before flight

Ontario travel tips

1) Have an authentic experience of eating bucket-loads of shellfish in Ontario

Visit the Bucket Crab & Crawfish restaurant at 612 North Euclid Avenue in Ontario for a great seafood experience. They offer you to eat bucket-loads of shellfish the traditional way without any forks or spoons. Even if you are a beginner, choose from the clams, shrimp, crab, or crawfish; the staff are helpful and attentive and will equip you with the necessary gloves and instructions to minimize the mess.

2) Prefer Scandia to Disneyland in Ontario to avoid crowds

Disneyland is a very crowded and time-consuming drive from Ontario. If you prefer a calmer atmosphere, choose Scandia. Yes, the park is not so large-scale, but it is so cozy and homey. Try the Scandia Screamer, the Swedish Swing or the Viking Ship! Tickets start at $17 depending on the set of attractions.

3) Buy some rare plants at the Rancho Santa Ana Botanic Gardens near Ontario

Just 15 minutes drive from Ontario you will find the Rancho Santa Ana Botanic Gardens, full of Californian native plants. You can even buy some to take home; salesmen give you some advice on how to maintain them. Then, explore the winding paths with squirrels, chipmunks, and birds.

Learn more about COVID-19 restrictions in United States in our dedicated Stories article.

Frequently asked questions

What are the most popular routes to and from Washington, D.C.?
Travelers frequently search for route combinations, such as Washington, D.C. and London, Orlando, San Salvador, Toronto, Manchester, San Francisco, Boston, San Juan, New York, Austin, Atlanta, Los Angeles, Denver, New Orleans, Edinburgh, Fort Lauderdale, Las Vegas, Seattle, Vilnius, Phoenix.
What are the most popular routes to and from Ontario?
Travelers frequently search for route combinations, such as Ontario and London, New York, Bangkok, San Francisco, Denver, Sacramento, Taipei, Manila, Toronto, Calgary, Seattle, Las Vegas, San Jose, Orlando, Houston, Macau, Los Angeles, Manchester, Detroit, Guadalajara.
Which airports are there in Washington, D.C.?
Washington, D.C. is mainly served by Baltimore–Washington International. But there are other airports nearby, including Washington Dulles International, Ronald Reagan Washington National.
What airports are near Washington, D.C.?
The main airport in Washington, D.C. is Baltimore–Washington International. It is also served by Philadelphia International, Norfolk International, Trenton–Mercer, Richmond International, Harrisburg International, Atlantic City International, Lehigh Valley International, Lancaster, Altoona–Blair County, Charlottesville–Albemarle.
What airports are near Ontario?
The main airport in Ontario is Ontario International. It is also served by San Diego International, Ontario International, Tijuana International, John Wayne, Hollywood Burbank, Palm Springs International, Santa Barbara Municipal, Imperial County, Meadows Field, Long Beach.
What buses and trains depart from Washington, D.C.?
A number of bus and train companies depart from Washington, D.C., including Peter Pan Bus, Amtrak train.
Is it possible to combine flights, buses, and trains in one itinerary when traveling between Washington, D.C. and Ontario?
Yes, it's possible to combine different modes of transport between Washington, D.C. and Ontario thanks to our Virtual Interlining technology. Making use of not only flights but also trains and buses between Washington, D.C. and Ontario can give rise to new adventures. Read more about how Virtual Interlining works on Kiwi.com Stories.
What is Virtual Interlining and how do I use it?
Virtual Interlining provides a revolutionary way of traveling. You can combine different modes of transport like flights, trains, and buses into one itinerary. And this often saves money. Thanks to the world's largest carrier database, the Kiwi.com search function enables anyone to mix and match different modes of transport easily.
Which airlines fly between Washington, D.C. and Ontario?
Currently, you can fly between Washington, D.C. and Ontario with American Airlines, United Airlines, Frontier Airlines, Delta Air Lines, Spirit Airlines.
When's the best time to travel between Washington, D.C. and Ontario?
What flights operate between Washington, D.C. and Ontario?
How many airports are there near Washington, D.C.?
How many airports are there near Ontario?
Is it possible to reach Washington, D.C. by bus or train?
What time do nonstop (direct) flights between Washington, D.C. and Ontario depart?
What time do nonstop (direct) flights between Washington, D.C. and Ontario arrive?
What time do flights between Washington, D.C. and Ontario depart?
What time do flights between Washington, D.C. and Ontario arrive?

Planning a trip? Thanks to our Virtual Interlining algorithm, we offer billions of route combinations between any A and any B in the world by plane, train, and bus. Find the cheapest routes and best deals for you, as well as the best dates on which to travel.

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