Cheap flights from Washington, D.C. to Ontario from £170

Cheap flights from Washington, D.C. to Ontario from £170

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2 stops
Wed, Jun 17
Washington, D.C. IADOntario ONT
£170
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2 stops
Wed, Jun 17
Washington, D.C. BWIOntario ONT
£170
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1 stop
Tue, Jun 16
Washington, D.C. IADOntario ONT
£171
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1 stop
Tue, Jun 16
Washington, D.C. DCAOntario ONT
£174
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1 stop
Wed, Jun 17
Washington, D.C. IADOntario ONT
£182
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1 stop
Fri, Jun 19
Washington, D.C. DCAOntario ONT
£190
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2 stops
Sat, Jun 20 – Wed, Jun 24
Washington, D.C. IADOntario ONT
£350
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1 stop
Sat, Jun 20 – Wed, Jun 24
Washington, D.C. DCAOntario ONT
£380
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1 stop
Sat, Jun 20 – Thu, Jun 25
Washington, D.C. IADOntario ONT
£390
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1 stop
Sat, Jun 20 – Tue, Jun 23
Washington, D.C. IADOntario ONT
£408
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2 stops
Sat, Jun 20 – Wed, Jun 24
Washington, D.C. IADOntario ONT
£408
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1 stop
Sat, Jun 20 – Thu, Jun 25
Washington, D.C. IADOntario ONT
£434
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How much do flights to Ontario cost?

Cheapest one-way trip

£170

Cheapest round-trip

£350

Average round-trip

£452

Includes rare itinerary

Travel hack

Most popular airline

Frontier Airlines

Key info about flying to Ontario

Depart from
Washington Dulles International
Arrive to
Ontario International
Average flights per week
400
Flight distance
Worth visiting
Griffith Observatory

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

NameCarrier codeIATA CodePassport needed during booking
Frontier AirlinesFFTF9No
United AirlinesUALUANo
JetBlue AirwaysJBUB6No
Alaska AirlinesASAASNo
Sun Country AirlinesSCXSYYes

Online check-in is not available for these airlines.

Weather in Ontario

Average Weather

MonthAverage monthly max temperatureAverage monthly min temperature
January18°C7°C
February18°C7°C
March20°C8°C
April23°C10°C
May25°C12°C
June29°C16°C
July32°C19°C
August33°C20°C
September31°C18°C
October27°C14°C
November22°C10°C
December17°C7°C
Hottest Month
33°C
August
Coldest month
7°C
February
Sunny days
340
days per year

14 day forecast

Friday
5 Jun
34°C14°C
12 Jun
31°C17°C
Saturday
6 Jun
28°C14°C
13 Jun
33°C18°C
Sunday
7 Jun
26°C16°C
14 Jun
33°C18°C
Monday
8 Jun
28°C15°C
15 Jun
31°C19°C
Tuesday
9 Jun
28°C18°C
16 Jun
28°C18°C
Wednesday
10 Jun
29°C17°C
17 Jun
28°C17°C
Thursday
11 Jun
28°C17°C
18 Jun
27°C16°C

Ontario travel tips

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.

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.

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.

Travelers usually depart from Washington Dulles International, Baltimore–Washington International, or Ronald Reagan Washington National when they travel from Washington, D.C. to Ontario. The most popular airlines for this route are Frontier Airlines, United Airlines, JetBlue Airways, Alaska Airlines, and Sun Country Airlines. Washington, D.C. and Ontario have 400 direct flights per week.

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, Atlanta, Edinburgh, Los Angeles, Tampa, Mexico City, Miami, San Salvador, San Juan, Dallas, Istanbul, Denver, New Delhi, Guadalajara, Fort Lauderdale, Kathmandu, Manchester, Paris, Toronto.
What are the most popular routes to and from Ontario?
Travelers frequently search for route combinations, such as Ontario and London, San Francisco, Guadalajara, Las Vegas, Seattle, Dallas, Houston, Sacramento, Portland, Denver, Atlanta, Chicago, Los Angeles, New York, Toronto, Calgary, Vancouver, Mexico City, Edmonton, Orlando.
Which airports are there in Washington, D.C.?
Washington, D.C. is mainly served by Washington Dulles International. But there are other airports nearby, including Baltimore–Washington International, Ronald Reagan Washington National.
What airports are near Washington, D.C.?
The main airport in Washington, D.C. is Washington Dulles International. It is also served by Philadelphia International, Norfolk International, Richmond International, Atlantic City International, Lehigh Valley International, Trenton–Mercer, Harrisburg International, Salisbury–Ocean City–Wicomico Regional, Hagerstown Regional, Lancaster.
What airports are near Ontario?
The main airport in Ontario is Ontario International. It is also served by Tijuana International, San Diego International, John Wayne, Ontario International, Hollywood Burbank, Palm Springs International, Long Beach, Santa Barbara Municipal, McClellan–Palomar, Hawthorne Municipal.
Which airlines fly between Washington, D.C. and Ontario?
Currently, you can fly between Washington, D.C. and Ontario with Frontier Airlines, United Airlines, JetBlue Airways, Alaska Airlines, Sun Country Airlines.
When’s the best time to travel between Washington, D.C. and Ontario?
If you don’t have specific dates for your trip between Washington, D.C. and Ontario, you can enter a date range into the departure and return fields. Most carriers on the Kiwi.com website allow you to search and book up to six months from the day of your search. Order the search results by the best, cheapest, or fastest route, or find the cheapest outbound and return combination in the pricing table.
What flights operate between Washington, D.C. and Ontario?
Traveling between Washington, D.C. and Ontario, you can choose between direct (nonstop) flights or flights with one or more stops. You can select the number of stops on your journey, including an overnight stopover, and the duration of the stopover. What’s more, you can also select where you want to have your stopover. Want to say "Hi" to a friend in another city en route to your destination? Or fancy a quick round of shopping? Go Multi-City or Nomad and add places to your search that you wish to visit.
How many airports are there near Washington, D.C.?
There are a number of airports in and around Washington, D.C.. The main one is Washington Dulles International and other nearby airports include Philadelphia International, Norfolk International, Richmond International, Atlantic City International, Lehigh Valley International, Trenton–Mercer, Harrisburg International, Salisbury–Ocean City–Wicomico Regional, Hagerstown Regional, Lancaster
How many airports are there near Ontario?
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?

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Flights from Washington, D.C.

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The nearest countries with flights to Ontario

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Airports near Ontario

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