Cheap flights from Dulles Intl (IAD) to Ontario (ONT) from $139

Currently, October is the cheapest month in which you can book a flight from Washington, D.C. Dulles Intl Airport to Ontario (average of $237). Flying from Washington, D.C. Dulles Intl Airport to Ontario in June is currently the most expensive (average of $341). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

• What airport do you fly into for flights to Ontario from Washington, D.C. Dulles Intl?

  Ontario (ONT), located 3.1 mi from the city center, is the airport you fly into when you book flights from Washington, D.C. Dulles Intl to Ontario. 3 airlines have flights to Ontario from Washington, D.C. Dulles Intl on a regular basis. Booking flights from Washington, D.C. Dulles Intl to Ontario should not be difficult; the airport handles an average of 0 inbound flights from Washington, D.C. Dulles Intl per day.

• Can I find flights from Washington, D.C. Dulles Intl Airport to Ontario for under $300 on Cheapflights?

  Yes, there are multiple flights from Washington, D.C. Dulles Intl Airport to Ontario for under $300. The cheapest flight booked recently is on Delta for just $280, but on average you can expect to pay $333.

• Are there last-minute flights available from Washington, D.C. Dulles Intl Airport to Ontario for under $500?

  There are currently 20+ open flights from Washington, D.C. Dulles Intl Airport to Ontario within the next 7 days for less than $500.

• What are the cheapest airlines flying from Washington, D.C. Dulles Intl Airport to Ontario round-trip?

  Our cheapest airline available from Washington, D.C. Dulles Intl Airport to Ontario is Delta. Our recent data shows that you can find tickets from as low as $280 on this airline. Additional options worth looking into are American Airlines and Alaska Airlines, starting at $317 and $359 round-trip. Delta is priced at 38% lower than the current average price of a flight leaving 3 months from now.

• What are the cheapest airlines to fly from Washington, D.C. Dulles Intl Airport to Ontario one-way?

  The cheapest airline one-way is American Airlines, with whom users have recently found tickets for as low as $139. However, be on the lookout for offers from Delta and United Airlines, as they are both options that can get you from Washington, D.C. Dulles Intl Airport to Ontario for a low price.

• What are the most popular airlines that fly from Washington, D.C. Dulles Intl Airport to Ontario?

  American Airlines, Delta and United Airlines are the most popular airlines when flying from Washington, D.C. Dulles Intl Airport to Ontario.

• What does IAD to ONT mean?

  Washington, D.C. Dulles Intl Airport is IAD and Ontario Airport is ONT. These codes are created by the International Air Transport Association (IATA) and airlines use them to identify the departing and arrival airports in the flight routes they service.

• Can I find deals for flights from Dulles Intl to Ontario that include extra baggage allowance?

  The amount of baggage you can bring on your Dulles Intl to Ontario flight depends on the airline and the type of fare you've chosen. After entering your flight details, you'll be able to view the specific baggage policies for each deal in the search results. Keep in mind that certain deals may offer additional baggage allowance.

• Can I find deals on flights from Dulles Intl to Ontario with specific airlines?

  Yes, Cheapflights allows you to browse and filter Dulles Intl to Ontario flight deals by airline. After entering your origin and destination, use the available filters to view flights offered by airlines.

• Can I find deals for flights from Dulles Intl to Ontario that include hotel bookings?

  Yes. In addition to deals on Dulles Intl to Ontario flights, Cheapflights offers vacation packages that include both flights and hotel.

• How can I find direct flights from Dulles Intl to Ontario?

  After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Dulles Intl to Ontario.

• Can I find deals for business class flights from Dulles Intl to Ontario?

  Yes. Cheapflights offers flight deals from Dulles Intl to Ontario by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

• Can I find deals for flights from Dulles Intl to Ontario that allow pets onboard?

  Many airlines flying from Dulles Intl to Ontario offer the option to travel with pets. After selecting a flight deal, you can find more information about the airline's pet policy on their official website or by contacting the airline directly. Please note that additional fees and restrictions may apply.

• Can I find deals on last-minute flights from Dulles Intl to Ontario?

  Yes, you can often find last-minute deals on Dulles Intl to Ontario flights on Cheapflights. However, these deals can vary and may not always be available. We recommend checking back frequently or signing up for price alerts for the most up-to-date deals.

• How recently were the Washington, D.C. Dulles Intl Airport to Ontario flight deals updated?

  The Washington, D.C. Dulles Intl Airport to Ontario flight deals you see on this page were last updated on 4/29.