$96 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 $191 round trip and $96 one way. Prices and availability subject to change. Additional terms may apply.

Sat, May 17 - Tue, May 20
ONT
Ontario
IAD
Washington
$191 Roundtrip, found 3 days ago
$191
Roundtrip
found 3 days ago
Select Frontier Airlines flight, departing Sat, May 17 from Ontario to Washington, returning Tue, May 20, priced at $191 found 3 days ago
Sun, May 4 - Tue, May 6
ONT
Ontario
IAD
Washington
$200 Roundtrip, found 1 day ago
$200
Roundtrip
found 1 day ago
Select Frontier Airlines flight, departing Sun, May 4 from Ontario to Washington, returning Tue, May 6, priced at $200 found 1 day ago
Wed, May 21 - Sun, May 25
ONT
Ontario
IAD
Washington
$201 Roundtrip, found 3 days ago
$201
Roundtrip
found 3 days ago
Select Frontier Airlines flight, departing Wed, May 21 from Ontario to Washington, returning Sun, May 25, priced at $201 found 3 days ago
Thu, Jun 5 - Mon, Jun 9
ONT
Ontario
IAD
Washington
$208 Roundtrip, found 1 day ago
$208
Roundtrip
found 1 day ago
Select Frontier Airlines flight, departing Thu, Jun 5 from Ontario to Washington, returning Mon, Jun 9, priced at $208 found 1 day ago
Thu, May 8 - Mon, May 12
ONT
Ontario
IAD
Washington
$210 Roundtrip, found 9 hours ago
$210
Roundtrip
found 9 hours ago
Select Frontier Airlines flight, departing Thu, May 8 from Ontario to Washington, returning Mon, May 12, priced at $210 found 9 hours ago
Sun, May 25 - Fri, May 30
ONT
Ontario
IAD
Washington
$211 Roundtrip, found 2 days ago
$211
Roundtrip
found 2 days ago
Select Frontier Airlines flight, departing Sun, May 25 from Ontario to Washington, returning Fri, May 30, priced at $211 found 2 days ago
Mon, May 19 - Wed, May 21
ONT
Ontario
IAD
Washington
$218 Roundtrip, found 3 days ago
$218
Roundtrip
found 3 days ago
Select Frontier Airlines flight, departing Mon, May 19 from Ontario to Washington, returning Wed, May 21, priced at $218 found 3 days ago
Wed, Jun 4 - Sun, Jun 8
ONT
Ontario
IAD
Washington
$222 Roundtrip, found 1 day ago
$222
Roundtrip
found 1 day ago
Select Frontier Airlines flight, departing Wed, Jun 4 from Ontario to Washington, returning Sun, Jun 8, priced at $222 found 1 day ago
Mon, May 19 - Fri, May 30
ONT
Ontario
IAD
Washington
$228 Roundtrip, found 5 hours ago
$228
Roundtrip
found 5 hours ago
Select Frontier Airlines flight, departing Mon, May 19 from Ontario to Washington, returning Fri, May 30, priced at $228 found 5 hours ago
Thu, May 8 - Sun, May 11
ONT
Ontario
IAD
Washington
$230 Roundtrip, found 12 hours ago
$230
Roundtrip
found 12 hours ago
Select Frontier Airlines flight, departing Thu, May 8 from Ontario to Washington, returning Sun, May 11, priced at $230 found 12 hours 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
May 31 - Jun 1
found 1 day ago
Roundtrip non-stop flight included
Ontario (ONT) to Washington (DCA)
Global Luxury Suites at Capitol Hill

Global Luxury Suites at Capitol Hill

4 out of 5
Save 100% on your flight
per person
Jun 19 - Jun 24
found 14 hours ago
Roundtrip non-stop flight included
Ontario (ONT) to Washington (DCA)
Hotel Hive

Hotel Hive

3.5 out of 5
per person
Jun 19 - Jun 24
found 14 hours ago
Roundtrip non-stop flight included
Ontario (ONT) to Washington (DCA)
American Inn Of Bethesda

American Inn Of Bethesda

3 out of 5
per person
Jun 19 - Jun 24
found 14 hours ago
Roundtrip non-stop flight included
Ontario (ONT) to Washington (DCA)
Hotel Silver Spring

Hotel Silver Spring

3.5 out of 5
per person
Jun 19 - Jun 24
found 14 hours 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
$191

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 $191 and $230. 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 $96. 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, May 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.