Question 1

Which is the best airline for flights from Washington, D.C. to Ontario, Southwest or Delta?

Accepted Answer

The two airlines most popular with KAYAK users for flights from Washington, D.C. to Ontario are Southwest and Delta. With an average price for the route of $461 and an overall rating of 7.9, Southwest is the most popular choice. Delta is also a great choice for the route, with an average price of $376 and an overall rating of 7.8.

Question 2

How long does a flight from Washington, D.C. to Ontario take?

Accepted Answer

There are no direct flights for this route. The shortest travel duration to get to Ontario from Washington, D.C. is 5h 15m.

Question 3

How many flights are there between Washington, D.C. and Ontario per day?

Accepted Answer

There is a maximum of 1 nonstop flight a day that takes off from Washington, D.C. and lands in Ontario, with an average flight time of 5h 15m. The most common departure time is 5:00 pm and most flights take off in the afternoon. Each week, there are 7 flights.

Question 4

How many flights are there between Washington, D.C. and Ontario per day?

Accepted Answer

There is a maximum of 1 nonstop flight a day that takes off from Washington, D.C. and lands in Ontario, with an average flight time of 5h 15m. The most common departure time is 5:00 pm and most flights take off in the afternoon. Each week, there are 7 flights.

Question 5

What is the cheapest flight from Washington, D.C. to Ontario?

Accepted Answer

In the last 5 days, the lowest price for a flight from Washington, D.C. to Ontario was $99 for a one-way ticket and $242 for a round-trip.

Question 6

Do I need a passport to fly between Washington, D.C. and Ontario?

Accepted Answer

A passport is not required to fly from Washington, D.C. to Ontario.

Question 7

Which airports will I be using when flying from Washington, D.C. to Ontario?

Accepted Answer

Washington, D.C. is served by 2 major airports and there is only 1 main airport in Ontario. You will leave Washington, D.C. from one of these airports: Washington, D.C. Reagan-National or Washington, D.C. Dulles Intl. You will be arriving at Ontario.

Question 8

What’s the earliest departure time from Washington, D.C. to Ontario?

Accepted Answer

Early birds can take the earliest flight from Washington, D.C. at 9:50 am and will be landing in Ontario at 12:05 pm.

Question 9

What’s the latest departure time from Washington, D.C. to Ontario?

Accepted Answer

If you prefer to fly at night, the latest flight from Washington, D.C. to Ontario jets off at 8:10 pm and lands at 10:25 pm.

Question 10

Which airlines fly non-stop between Washington, D.C. and Ontario?

Accepted Answer

There are 3 airlines that fly nonstop from Washington, D.C. to Ontario. They are: Delta, Southwest and United Airlines. The cheapest price of all airlines flying this route was found with Delta at $192 for a round-trip flight. On average, the best prices for this route can be found at Delta.

Question 11

Which airlines fly non-stop between Washington, D.C. and Ontario?

Accepted Answer

There are 3 airlines that fly nonstop from Washington, D.C. to Ontario. They are: Delta, Southwest and United Airlines. The cheapest price of all airlines flying this route was found with Delta at $192 for a round-trip flight. On average, the best prices for this route can be found at Delta.

Question 12

Which airlines offer Wi-Fi service onboard planes from Washington, D.C. to Ontario?

Accepted Answer

Alaska Airlines, and Hawaiian Airlines offer inflight Wi-Fi service on the Washington, D.C. to Ontario flight route.

Question 13

Which aircraft models fly most regularly from Washington, D.C. to Ontario?

Accepted Answer

The Boeing 737-800 Passenger/BBJ2 (winglets) is the aircraft model that flies most regularly on the Washington, D.C. to Ontario flight route.

Question 14

Which airline alliances offer flights from Washington, D.C. to Ontario?

Accepted Answer

SkyTeam, Star Alliance, and oneworld are the airline alliances operating flights between Washington, D.C. and Ontario, with SkyTeam being the most commonly used for this route.

Question 15

On which days can I fly direct from Washington, D.C. to Ontario?

Accepted Answer

There are nonstop flights from Washington, D.C. to Ontario on a daily basis.

Question 16

What is the cheapest month to fly from Washington, D.C. to Ontario?

Accepted Answer

The cheapest month for flights from Washington, D.C. to Ontario is September, where tickets cost $100 (return) on average. On the other hand, the most expensive months are April and March, where the average cost of round-trip tickets is $290 and $219 respectively.

Question 17

What is the cheapest month to fly from Washington, D.C. to Ontario?

Accepted Answer

The cheapest month for flights from Washington, D.C. to Ontario is September, where tickets cost $100 (return) on average. On the other hand, the most expensive months are April and March, where the average cost of round-trip tickets is $290 and $219 respectively.

Question 18

How does KAYAK find such low prices on flights from Washington, D.C. to Ontario?

Accepted Answer

KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Washington, D.C. to Ontario.

Question 19

How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Washington, D.C. to Ontario?

Accepted Answer

KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Ontario from Washington, D.C. is likely to change within 7 days, so travelers know whether to wait or book now.

Question 20

What is the Hacker Fare option on flights from Washington, D.C. to Ontario?

Accepted Answer

Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Ontario with an airline and back to Washington, D.C. with another airline.

Question 21

What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Washington, D.C. to Ontario?

Accepted Answer

Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Ontario from Washington, D.C. up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Question 22

What is the cheapest layover airport when flying from Washington, D.C. to Ontario?

Accepted Answer

Flights via Houston (HOU) offer the most affordable fares, with an average round-trip price of $236.

Question 23

What is the most popular layover airport when flying from Washington, D.C. to Ontario?

Accepted Answer

Denver (DEN) is the top choice – 36% of KAYAK users who clicked on 1-stop flights from Washington, D.C. to Ontario picked an itinerary connecting there.

Question 24

Which layover airport has the quickest connection when flying from Washington, D.C. to Ontario?

Accepted Answer

If you prefer a quick connection, Houston (IAH) often has the shortest layovers from Washington, D.C. to Ontario, with an average of 0h 49m.

Question 25

Which layover airport offers the shortest total travel time from Washington, D.C. to Ontario?

Accepted Answer

Consider flying via Phoenix (PHX) for the shortest journey. The average one-way travel time for flights connecting there is 7h 09m.

Question 26

Which cabin class options are there for flights between Washington, D.C. and Ontario?

Accepted Answer

There is only one cabin class option available for the route, which is Economy. Perform a search on KAYAK to find the latest prices and availability for all cabin fares, which differ across airlines.

Question 27

Which cabin class options are there for flights between Washington, D.C. and Ontario?

Accepted Answer

There is only one cabin class option available for the route, which is Economy. Perform a search on KAYAK to find the latest prices and availability for all cabin fares, which differ across airlines.

Question 28

Which airlines provide the cheapest flights from Washington, D.C. to Ontario?

Accepted Answer

In the past 5 days, the cheapest round-trip tickets from Washington, D.C. to Ontario were found on Frontier ($242) and American Airlines ($299).

Question 29

Which airlines provide the cheapest flights from Washington, D.C. to Ontario?

Accepted Answer

In the past 5 days, the cheapest round-trip tickets from Washington, D.C. to Ontario were found on Frontier ($242) and American Airlines ($299).

Question 30

What is the cheapest Washington, D.C. to Ontario flight route?

Accepted Answer

The cheapest return flight from Washington, D.C. to Ontario costs $325 on the route between Baltimore (BWI) and Ontario (ONT). It is also the most popular route.

Question 31

What is the cheapest Washington, D.C. to Ontario flight route?

Accepted Answer

The cheapest return flight from Washington, D.C. to Ontario costs $325 on the route between Baltimore (BWI) and Ontario (ONT). It is also the most popular route.

Question 32

Can I save money by flying with a layover from Washington, D.C. to Ontario?

Accepted Answer

No, with an average price for the route of $379, prices are generally cheapest when you fly direct.

Question 33

Can I save money by flying with a layover from Washington, D.C. to Ontario?

Accepted Answer

No, with an average price for the route of $379, prices are generally cheapest when you fly direct.

Question 34

How much is a round-trip flight from Washington, D.C. to Ontario?

Accepted Answer

Flight prices are below average for this route right now.Flights to Ontario from Washington, D.C. usually cost between $247 and $573 in August.
The lowest price found in the past 5 days was $242 on Frontier (Aug 18-Aug 24).

Question 35

What are the most popular airlines flying to Ontario?

Accepted Answer

The most popular airline among KAYAK users flying to Ontario is United Airlines, followed by Southwest and American Airlines.

Low season	January
High season	August
Cheapest flight	$99

WAS - ONT

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Cheap Flights from Washington, D.C. to Ontario (WAS-ONT)

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KAYAK's insights & trends for Washington, D.C. to Ontario flights

How much is a round-trip flight from Washington, D.C. to Ontario?

What is the cheapest Washington, D.C. to Ontario flight route?

What is the cheapest month to fly from Washington, D.C. to Ontario?

Can I save money by flying with a layover from Washington, D.C. to Ontario?

Which airlines provide the cheapest flights from Washington, D.C. to Ontario?

Which airlines fly non-stop between Washington, D.C. and Ontario?

What is the most popular layover airport when flying from Washington, D.C. to Ontario?

What is the cheapest layover airport when flying from Washington, D.C. to Ontario?

Which layover airport offers the shortest total travel time from Washington, D.C. to Ontario?

Which layover airport has the quickest connection when flying from Washington, D.C. to Ontario?

Which cabin class options are there for flights between Washington, D.C. and Ontario?

How many flights are there between Washington, D.C. and Ontario per day?

How long does a flight from Washington, D.C. to Ontario take?

What’s the earliest departure time from Washington, D.C. to Ontario?

What’s the latest departure time from Washington, D.C. to Ontario?

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