$108 Cheap flights from Los Angeles - Ontario Intl. to Washington Dulles Intl. (ONT to IAD)

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Find The Best Dates To Fly from Los Angeles - Ontario Intl. to Washington Dulles Intl.

Compare Flight Prices from Ontario to Washington

Affordable Airfare Tickets from ONT to IAD Airport

The cheapest flights to Washington Dulles Intl. found within the past 7 days were $212 round trip and $108 one way. Prices and availability subject to change. Additional terms may apply.

Fri, Jun 20 - Tue, Jun 24
ONT
Ontario
IAD
Washington
$212 Roundtrip, found 2 hours ago
$212
Roundtrip
found 2 hours ago
Select Frontier Airlines flight, departing Fri, Jun 20 from Ontario to Washington, returning Tue, Jun 24, priced at $212 found 2 hours ago
Fri, Aug 15 - Mon, Aug 18
ONT
Ontario
IAD
Washington
$275 Roundtrip, found 6 days ago
$275
Roundtrip
found 6 days ago
Select Frontier Airlines flight, departing Fri, Aug 15 from Ontario to Washington, returning Mon, Aug 18, priced at $275 found 6 days ago
Fri, Aug 15 - Mon, Aug 18
ONT
Ontario
IAD
Washington
$280 Roundtrip, found 6 days ago
$280
Roundtrip
found 6 days ago
Select Frontier Airlines flight, departing Fri, Aug 15 from Ontario to Washington, returning Mon, Aug 18, priced at $280 found 6 days ago
Mon, Jul 14 - Mon, Jul 28
ONT
Ontario
IAD
Washington
$293 Roundtrip, found 5 days ago
$293
Roundtrip
found 5 days ago
Select Delta flight, departing Mon, Jul 14 from Ontario to Washington, returning Mon, Jul 28, priced at $293 found 5 days ago
Wed, Jul 9 - Sat, Jul 19
ONT
Ontario
IAD
Washington
$296 Roundtrip, just found
$296
Roundtrip
just found
Select Frontier Airlines flight, departing Wed, Jul 9 from Ontario to Washington, returning Sat, Jul 19, priced at $296 just found
Tue, Sep 30 - Tue, Oct 7
ONT
Ontario
IAD
Washington
$296 Roundtrip, found 1 day ago
$296
Roundtrip
found 1 day ago
Select Alaska Airlines flight, departing Tue, Sep 30 from Ontario to Washington, returning Tue, Oct 7, priced at $296 found 1 day ago
Thu, Sep 18 - Mon, Sep 22
ONT
Ontario
IAD
Washington
$297 Roundtrip, found 4 days ago
$297
Roundtrip
found 4 days ago
Select United flight, departing Thu, Sep 18 from Ontario to Washington, returning Mon, Sep 22, priced at $297 found 4 days ago
Fri, Sep 26 - Tue, Oct 7
ONT
Ontario
IAD
Washington
$297 Roundtrip, found 1 day ago
$297
Roundtrip
found 1 day ago
Select Alaska Airlines flight, departing Fri, Sep 26 from Ontario to Washington, returning Tue, Oct 7, priced at $297 found 1 day ago
Fri, Sep 26 - Thu, Oct 2
ONT
Ontario
IAD
Washington
$298 Roundtrip, found 3 days ago
$298
Roundtrip
found 3 days ago
Select Hawaiian Airlines flight, departing Fri, Sep 26 from Ontario to Washington, returning Thu, Oct 2, priced at $298 found 3 days ago
Thu, Jul 17 - Mon, Jul 28
ONT
Ontario
IAD
Washington
$299 Roundtrip, found 5 days ago
$299
Roundtrip
found 5 days ago
Select Delta flight, departing Thu, Jul 17 from Ontario to Washington, returning Mon, Jul 28, priced at $299 found 5 days ago

Washington Dulles Intl. flight + hotel packages - economy flights

Price found within the past 48 hours. Click for updated prices.
Hotel Arboretum

Hotel Arboretum

2 out of 5
per person
Jul 17 - Jul 20
found 24 hours ago
Roundtrip non-stop flight included
Ontario (ONT) to Washington (DCA)
Placemakr Buzzard Point

Placemakr Buzzard Point

4 out of 5
per person
Jul 18 - Jul 20
found 1 day ago
Roundtrip non-stop flight included
Ontario (ONT) to Washington (DCA)
Lyle Washington D.C.

Lyle Washington D.C.

4.5 out of 5
per person
Jul 18 - Jul 20
found 1 day ago
Roundtrip non-stop flight included
Ontario (ONT) to Washington (DCA)
Embassy Suites by Hilton Tysons Corner

Embassy Suites by Hilton Tysons Corner

3.5 out of 5
per person
Jul 17 - Jul 20
found 24 hours ago
Roundtrip non-stop flight included
Ontario (ONT) to Washington (DCA)
Glover Park - Georgetown

Glover Park - Georgetown

4 out of 5
per person
Jul 18 - Jul 20
found 1 day ago
Roundtrip non-stop flight included
Ontario (ONT) to Washington (DCA)
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Frequently asked questions

Can I catch a flight from Ontario Airport to Washington Dulles Intl. Airport (IAD) right now?
Be sure to go to our Covid-19 Travel Advisor to discover if there are any present quarantine requirements and travel advice reports in place in Dulles Intl. Airport when jet-setting from ONT.
Are there direct flights from ONT to Washington Dulles Intl. Airport (IAD)?
Take note of your connecting gate, because there aren’t any direct flights on the Ontario Airport to Dulles Intl. Airport route. United Airlines, Delta and American Airlines are some airlines that will take you to Sterling with just one stopover.
If I am not able to travel due to COVID-19, can I change my booking to a later date?
For more info about changing your flight to Washington Dulles Intl. Airport (IAD), please visit our Customer Service Portal.
How long is the flight from Los Angeles - Ontario Intl. Airport (ONT) to Dulles Intl. Airport?
Flights between ONT and Washington Dulles Intl. Airport (IAD) take roughly 6 hours and 29 minutes all up. Make the most of that time in the air by resting, reading, watching a film or doing all three.
What is the flight distance from Los Angeles - Ontario Intl. Airport (ONT) to IAD?
With a flight distance of 2,200 mi separating ONT and Washington Dulles Intl. Airport (IAD), you’re going to be up in the air for a decent amount of time. It’s an excellent opportunity to watch a movie, catch up on work or just relax with a book.
What airlines fly from Los Angeles - Ontario Intl. Airport (ONT) to Washington Dulles Intl. Airport (IAD)?
There are currently no airlines offering a direct flight between ONT and IAD. Save time and avoid unnecessary stopovers by investigating the most efficient routes well in advance.
What airlines have practices regarding COVID-19 in place and use social distancing?
From the moment you enter the departure terminal to when you leave the arrivals terminal, if you’re flying with United Airlines, Delta or American Airlines you can be sure that COVID-19 measures and social distancing rules have been adhered to. Many airlines have introduced capped capacity flights and keeping the middle seat empty.
What is the best day to buy a plane ticket?
This just in! Airfares offered on Thursdays tend to be the cheapest, according to flight demand on Travelocity in 2021. Tuesday and Wednesday prices are also good, but you may want to prepare your budget if booking during the weekend, as data shows that is when prices are generally at their highest.
What are the cheapest days to fly?
Frequent travelers may already know this, but earlier in the week can be the cheapest time to fly. In 2021, flights departing on a Monday were generally the cheapest of the week, whereas you may pay a premium for weekend flights when demand is usually high. On average, tickets were most expensive for Saturday departures, so if you need to fly out on a weekend, you might look for deals ahead of time.
How far in advance can you book a flight?
Trying to figure out how early you should book your flight? It’s possible to start comparing international airfares on Travelocity up to 12 months in advance. However, it does depend on the carrier as not all airlines release their prices that far out. According to our 2021 flight demand trends, last minute planners can still bag a bargain with some of the cheapest fares appearing 0-2 weeks prior to their travel dates.*According to flight demand on Travelocity.com from January to December 2021. Savings are subject to change based on departure location, date and destination.

Flight information from Ontario to Washington

 

Traveling From
Los Angeles - Ontario Intl.
Traveling To
Washington Dulles Intl.
Shortest Flight Time
 hours mins
Earliest Departure Time
Latest Departure Time
Lowest Flight Price
$212

Route Info

Flight path for flights from LA/Ontario International Airport to Washington Dulles International Airport.


Origin:
ONT - LA/Ontario International Airport
Destination:
IAD - Washington Dulles International Airport
Distance:
2,394.00 miles


Discover our best flights from Ontario ONT to Washington IAD. 

With 20 airlines to choose from on Travelocity, you can easily find the best option for you. Use our filters to sort by price, compare airlines, and find the most convenient flight times. 

 

Find our best return flights from Ontario ONT to Washington IAD at the right price  

Airfares to Washington IAD from Ontario ONT currently cost between $212 and $299. It’s usually cheaper to book a round trip than two separate one-way flights. Prices and availability subject to change. Additional terms may apply. 

 

Book one-way flights from Ontario ONT to Washington IAD 

If you want to be flexible about when you return, or keep your travel options open ended, a one-way flight could be just the ticket! You’ll find one-way airfares from Ontario ONT to Washington IAD on Travelocity starting at $108. Prices and availability subject to change. Additional terms may apply. 

 

Get to Washington IAD from Ontario ONT quicker with direct flights. 

Get to Washington faster, without the hassle of changing planes and moving baggage, by booking a direct flight. Expect your direct flight to IAD from ONT to take around hour(s) min(s).  

 

Find our cheapest airfares for flights from Ontario ONT to Washington IAD

Find cheap flight deals by using our search filters to sort results starting with the lowest price airfares to IAD from ONT. Our Price Match Promise means if you find a lower rate on Travelocity.com or on another US-based website within 24 hours of booking, we’ll credit or refund the difference.  

 

Get our best airfare deals for your flight from Ontario ONT to Washington IAD today 

If you’re flexible about when you travel, June is usually the cheapest month to fly from Ontario ONT to Washington IAD. If you need to be more specific, search by date and arrival and departure times.Then, compare prices across different airlines, and sort results by lowest price first. 

 

Book flexible airline tickets for flights to Washington IAD from Ontario ONT 

Some airlines let you change your travel dates without charging a fee. Use our ‘no change fee’ filter to see which flights to IAD from ONT have this option.  

 

Travel with confidence when you book flights to Washington IAD from Ontario ONT with Travelocity 

We’ve secured fantastic deals with all the main airline carriers and it’s easy to compare, choose, and book with Travelocity. With 24/7 customer service and our free 'App', we’ll always keep you moving. 

*Price based on the lowest price found within past 24 hours and based upon one night stay for two adults over the next thirty days. Prices and availability subject to change. Additional terms may apply.