Cheap flights from Washington, D.C. to Ontario from £95

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1 stop
Mon, Jul 28
Washington, D.C. DCAOntario ONT
£95
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1 stop
Wed, Jul 30
Washington, D.C. DCAOntario ONT
£120
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1 stop
Tue, Jul 29
Washington, D.C. DCAOntario ONT
£124
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1 stop
Sat, Aug 2
Washington, D.C. DCAOntario ONT
£126
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1 stop
Tue, Jul 29
Washington, D.C. DCAOntario ONT
£163
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1 stop
Wed, Jul 30
Washington, D.C. DCAOntario ONT
£164
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1 stop
Mon, Jul 28 – Thu, Jul 31
Washington, D.C. DCAOntario ONT
£193
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1 stop
Mon, Jul 28 – Fri, Aug 1
Washington, D.C. DCAOntario ONT
£198
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1 stop
Mon, Jul 28 – Fri, Aug 1
Washington, D.C. DCAOntario ONT
£216
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1 stop
Mon, Jul 28 – Fri, Aug 1
Washington, D.C. DCAOntario ONT
£229
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1 stop
Sat, Aug 2 – Tue, Aug 5
Washington, D.C. DCAOntario ONT
£250
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1 stop
Sat, Aug 2 – Tue, Aug 5
Washington, D.C. DCAOntario ONT
£250
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How much do flights to Ontario cost?

Cheapest one-way trip

£95

Cheapest round-trip

£193

Average round-trip

£280

Most popular airline

United Airlines

Key info about flying to Ontario

Depart from
Washington Dulles International
Arrive to
Ontario International
Average flights per week
153
Flight distance
Worth visiting
Griffith Observatory

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

NameCarrier codeIATA CodePassport needed during booking
United AirlinesUALUANo
Alaska AirlinesASAASNo
Frontier AirlinesFFTF9No
Hawaiian AirlinesHALHANo

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
March19°C8°C
April23°C10°C
May25°C12°C
June29°C16°C
July33°C19°C
August33°C20°C
September32°C18°C
October27°C15°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
4 Jul
32°C18°C
11 Jul
34°C21°C
Saturday
5 Jul
34°C19°C
12 Jul
32°C19°C
Sunday
6 Jul
32°C19°C
13 Jul
33°C19°C
Monday
7 Jul
31°C19°C
14 Jul
33°C19°C
Tuesday
8 Jul
35°C19°C
15 Jul
33°C19°C
Wednesday
9 Jul
36°C21°C
16 Jul
32°C20°C
Thursday
10 Jul
35°C22°C
17 Jul
31°C20°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 United Airlines, Alaska Airlines, Frontier Airlines, and Hawaiian Airlines. Washington, D.C. and Ontario have 153 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, Miami, Dallas, Atlanta, Edinburgh, Manchester, Tampa, San Salvador, Los Angeles, Cancún, San Juan, Mexico City, New Orleans, Glasgow, Chicago, Guadalajara, Denver, Las Vegas, Istanbul.
What are the most popular routes to and from Ontario?
Travelers frequently search for route combinations, such as Ontario and Dallas, Las Vegas, San Francisco, Guadalajara, Denver, Portland, Seattle, Edinburgh, London, Phoenix, Minneapolis, Sacramento, Boise, Salt Lake City, Orlando, Chicago, Houston, Honolulu, Cleveland, Indianapolis.
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, Lehigh Valley International, Atlantic City International, Harrisburg International, Lancaster, Trenton–Mercer, Hagerstown Regional, Altoona–Blair County.
What airports are near Ontario?
The main airport in Ontario is Ontario International. It is also served by Tijuana International, San Diego International, Ontario International, John Wayne, Palm Springs International, Hollywood Burbank, Long Beach, Santa Barbara Municipal, Meadows Field, Hawthorne Municipal.
Which airlines fly between Washington, D.C. and Ontario?
Currently, you can fly between Washington, D.C. and Ontario with United Airlines, Alaska Airlines, Frontier Airlines, Hawaiian 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, Lehigh Valley International, Atlantic City International, Harrisburg International, Lancaster, Trenton–Mercer, Hagerstown Regional, Altoona–Blair County
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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Airports near Ontario

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