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IAD (Washington) to ONT (Ontario) Flights $313.6

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Here are your best fares found in the past 7 days

The lowest fare found for this route is $313.6 on Wed, Sep 20 from IAD to ONT
Flights Fare Calendar Find minimum fare between origin IAD and destination ONT Click this button to get previous 30 days data Click this button to get next 30 days data $893 $765 $638 $510 $382 $255 $127 $0 Jun Jul 26 27 28 29 30 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 1 2 3 4 5 6 7 8 9 10 11 12 13 M T W T F S S M T W T F S S M T W T F S S M T W T F S S M T W T F S S M T W T F S S M T W T F S S M T W T F S S M T W T F S S M T W T F S S M T W T F S S M T W T F S S M T W T F S S M T W T F S S M T W T F S S M T W T F Price is $ 765.6 on American Airlines Price is $ 612.82 on American Airlines Price is $ 597.69 on United Price is $ 575.6 on American Airlines Price is $ 562.6 on American Airlines Price is $ 551.26 on American Airlines Price is $ 551.26 on American Airlines Price is $ 551.26 on American Airlines Price is $ 551.26 on American Airlines Price is $ 529.6 on United Price is $ 525.6 on United Price is $ 525.6 on United Price is $ 517.95 on American Airlines Price is $ 515.59 on United Price is $ 504.83 on American Airlines Price is $ 504.83 on American Airlines Price is $ 504.83 on American Airlines Price is $ 500.7 on United Price is $ 500.6 on United Price is $ 477.58 on United Price is $ 474.54 on American Airlines Price is $ 470.59 on United Price is $ 468.6 on United Price is $ 450.6 on United Price is $ 440.7 on United Price is $ 429.13 on United Price is $ 429.13 on United Price is $ 427.12 on United Price is $ 427.12 on United Price is $ 425.6 on United Price is $ 425.6 on United Price is $ 421.12 on United Price is $ 418.6 on United Price is $ 416.08 on United Price is $ 406.93 on United Price is $ 406.93 on American Airlines Price is $ 406.93 on American Airlines Price is $ 403.6 on United Price is $ 403.6 on United Price is $ 403.6 on United Price is $ 403.6 on United Price is $ 401.88 on United Price is $ 401.88 on United Price is $ 393.6 on United Price is $ 391.85 on United Price is $ 389.77 on United Price is $ 386.6 on American Airlines Price is $ 380.6 on United Price is $ 380.6 on United Price is $ 379.69 on American Airlines Price is $ 379.68 on United Price is $ 379.68 on United Price is $ 379.68 on United Price is $ 374.63 on United Price is $ 374.63 on United Price is $ 374.63 on United Price is $ 371.6 on United Price is $ 371.6 on United Price is $ 361.51 on United Price is $ 347.38 on United Price is $ 347.38 on United Price is $ 339.6 on United Price is $ 329.21 on United Price is $ 329.21 on United Price is $ 329.21 on United Price is $ 326.6 on United Price is $ 316.09 on United Price is $ 313.6 on American Airlines Price is $ 313.6 on American Airlines

Cheap IAD to ONT Flights

Prices found within past 7 days. Prices and availability subject to change. Additional terms may apply.

Orange County

$309.10

Long Beach

$383.15

Interesting Facts About Flights from Washington to Ontario (IAD to ONT)

Question : What's the likelihood of you being delayed on this route?
Answer : IAD to ONT currently scores 4 out of a possible 5 stars in promptness. This score combines both the number of delayed flights and total delay minutes. With 4 stars, you should feel confident in getting to Ontario on time.

Question : What price range should you expect when booking from Dulles (IAD) to Ontario (ONT)?
Answer : Flight prices change a lot more than the majority of routes in the United States for IAD to ONT. They vary anywhere from $403 to $10,376. Remember, the sooner you book, the better price you tend to get.

Question : Do travelers from Dulles typically stay in Ontario for very long?
Answer : The average time spent in Ontario by passengers from Dulles is about one week.

Question : Over the coming months, which airline is getting their passengers to Ontario International Airport (ONT) round-trip the cheapest?
Answer : Flight prices are hitting as high as $10,376 over the next three months when flying to ONT from IAD. Check out United Airlines, as they have been booking customers at just $403.

Question : What is the likelihood your flight will be delayed for this route?
Answer : The Dulles to Ontario route has been excellent at getting passengers to their destination on time, with a 100% on-time rate.

Question : In the next four weeks, what day should you book your trip?
Answer : As of Jun 19th, the best day for deals to Ontario (ONT) is Jul 11th. It costs $404, which is 45% below the average price to book the same route.

Question : Will you do what it takes to get the absolute cheapest flight?
Answer : The lowest-cost day to fly in July is Tuesday. Having flexibility in your travel plans means you can save more, so be sure to plan ahead when possible.