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Cheap flights from Ontario to Washington, D.C. Dulles Intl Airport from $139

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Ontario to Washington, D.C. Dulles Intl Airport departing on 9/21. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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Easily compare round-trip flights from Ontario to Washington, D.C. Dulles Intl Airport

Below you can see the best fares for your round-trip flight route over the next six months. All fares were found on momondo this week. Browse the quickest and cheapest flights from Ontario to Washington, D.C. Dulles Intl Airport by changing tabs
American Airlines
Sep 28
ONT11:00 pmOntario
6h 36m
1 stop
IAD8:36 amWashington, D.C. Dulles Intl
Oct 1
IAD5:31 pmWashington, D.C. Dulles Intl
7h 29m
1 stop
ONT10:00 pmOntario
Delta
May 29
ONT12:50 pmOntario
8h 05m
1 stop
IAD11:55 pmWashington, D.C. Dulles Intl
May 30
IAD7:15 amWashington, D.C. Dulles Intl
7h 58m
1 stop
ONT12:13 pmOntario
United Airlines
Aug 28
ONT2:02 pmOntario
7h 55m
1 stop
IAD12:57 amWashington, D.C. Dulles Intl
Sep 2
IAD6:12 pmWashington, D.C. Dulles Intl
9h 33m
1 stop
ONT12:45 amOntario
Alaska Airlines
May 30
ONT10:00 amOntario
10h 59m
1 stop
IAD11:59 pmWashington, D.C. Dulles Intl
Jun 3
IAD7:00 amWashington, D.C. Dulles Intl
11h 26m
1 stop
ONT3:26 pmOntario
American Airlines
May 29
ONT6:00 amOntario
7h 27m
1 stop
IAD4:27 pmWashington, D.C. Dulles Intl
Jun 4
IAD2:14 pmWashington, D.C. Dulles Intl
7h 45m
1 stop
ONT6:59 pmOntario
Undisclosed Carrier
Jun 18
ONT8:20 pmOntario
8h 10m
1 stop
IAD7:30 amWashington, D.C. Dulles Intl
Aug 24
IAD4:13 pmWashington, D.C. Dulles Intl
9h 07m
1 stop
ONT10:20 pmOntario

Find the cheapest one-way flights from Ontario to Washington, D.C. Dulles Intl Airport

If you're looking for one-way flights from Ontario to Washington, D.C. Dulles Intl Airport, view some of our deals below provided by American Airlines, Delta and United Airlines
American Airlines
Sep 21
ONT11:00 pmOntario
6h 36m
1 stop
IAD8:36 amWashington, D.C. Dulles Intl
Delta
May 13
ONT6:42 pmOntario
8h 43m
1 stop
IAD6:25 amWashington, D.C. Dulles Intl
United Airlines
Jul 20
ONT6:25 pmOntario
8h 00m
1 stop
IAD5:25 amWashington, D.C. Dulles Intl

Search last-minute flights to Washington, D.C. Dulles Intl Airport from Ontario

Find and compare round-trip flight prices for your last-minute flight from Ontario to Washington, D.C. Dulles Intl Airport
American Airlines
May 7
ONT10:29 pmOntario
9h 46m
1 stop
IAD11:15 amWashington, D.C. Dulles Intl
May 15
IAD5:17 pmWashington, D.C. Dulles Intl
9h 39m
1 stop
ONT11:56 pmOntario
Delta
May 4
ONT12:42 pmOntario
8h 17m
1 stop
IAD11:59 pmWashington, D.C. Dulles Intl
May 13
IAD2:59 pmWashington, D.C. Dulles Intl
8h 07m
1 stop
ONT8:06 pmOntario
Alaska Airlines
May 4
ONT6:00 amOntario
9h 04m
1 stop
IAD6:04 pmWashington, D.C. Dulles Intl
May 11
IAD7:40 amWashington, D.C. Dulles Intl
11h 25m
1 stop
ONT4:05 pmOntario
United Airlines
May 4
ONT1:36 pmOntario
6h 38m
1 stop
IAD11:14 pmWashington, D.C. Dulles Intl
May 14
IAD8:15 amWashington, D.C. Dulles Intl
7h 25m
1 stop
ONT12:40 pmOntario
Avianca
May 7
ONT11:30 pmOntario
13h 05m
1 stop
IAD3:35 pmWashington, D.C. Dulles Intl
May 21
IAD6:15 amWashington, D.C. Dulles Intl
18h 45m
1 stop
ONT10:00 pmOntario
American Airlines
May 7
ONT10:29 pmOntario
9h 46m
1 stop
IAD11:15 amWashington, D.C. Dulles Intl
May 15
IAD5:02 amWashington, D.C. Dulles Intl
9h 45m
2 stops
ONT11:47 amOntario

Best airlines flying from Ontario to Washington, D.C. Dulles Intl Airport

Compare and see reviews for airlines that fly from Ontario to Washington, D.C. Dulles Intl Airport with momondo
Airline
Rating
Free Cancellation
Price
Alaska AirlinesPriceFrom $133Free CancellationRating
8.1
9,110 reviews
Search Alaska Airlines flights
FrontierPriceFrom $156Free CancellationRating
6.2
4,123 reviews
Search Frontier flights
United AirlinesPriceFrom $182Free CancellationRating
7.4
11,221 reviews
Search United Airlines flights
American AirlinesPriceFrom $194Free CancellationRating
7.3
14,844 reviews
Search American Airlines flights
DeltaPriceFrom $256Free CancellationRating
8.0
10,932 reviews
Search Delta flights

American Airlines flights from Ontario to Washington, D.C. Dulles Intl Airport

Our best American Airlines deals on Ontario to Washington, D.C. Dulles Intl Airport flight tickets
American Airlines
Sep 28
ONT11:00 pmOntario
6h 36m
1 stop
IAD8:36 amWashington, D.C. Dulles Intl
Oct 1
IAD5:31 pmWashington, D.C. Dulles Intl
7h 29m
1 stop
ONT10:00 pmOntario
American Airlines
May 29
ONT6:00 amOntario
7h 27m
1 stop
IAD4:27 pmWashington, D.C. Dulles Intl
Jun 4
IAD2:14 pmWashington, D.C. Dulles Intl
7h 45m
1 stop
ONT6:59 pmOntario
American Airlines
Sep 28
ONT7:25 pmOntario
10h 11m
2 stops
IAD8:36 amWashington, D.C. Dulles Intl
Oct 1
IAD5:31 pmWashington, D.C. Dulles Intl
7h 29m
1 stop
ONT10:00 pmOntario

Delta flights from Ontario to Washington, D.C. Dulles Intl Airport

Our best Delta deals on Ontario to Washington, D.C. Dulles Intl Airport flight tickets
Delta
May 29
ONT12:50 pmOntario
8h 05m
1 stop
IAD11:55 pmWashington, D.C. Dulles Intl
May 30
IAD7:15 amWashington, D.C. Dulles Intl
7h 58m
1 stop
ONT12:13 pmOntario
Delta
May 30
ONT6:42 pmOntario
8h 43m
1 stop
IAD6:25 amWashington, D.C. Dulles Intl
Jun 5
IAD7:15 amWashington, D.C. Dulles Intl
7h 58m
1 stop
ONT12:13 pmOntario
Delta
Sep 7
ONT7:00 amOntario
12h 46m
2 stops
IAD10:46 pmWashington, D.C. Dulles Intl
Sep 10
IAD12:35 pmWashington, D.C. Dulles Intl
9h 47m
1 stop
ONT7:22 pmOntario

How to get the cheapest flight ticket from Ontario to Washington, D.C. Dulles Intl Airport

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

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

February. The cheapest time of year to fly to Washington, D.C. Dulles Intl Airport from Ontario is February. Most expensive is June

What is the cheapest day to depart Ontario for Washington, D.C. Dulles Intl Airport?

Tuesday. The cheapest day of the week is typically Tuesday. The most expensive is typically Sunday

When is the cheapest time to fly from Ontario to Washington, D.C. Dulles Intl Airport?

In the afternoon. Ontario to Washington, D.C. Dulles Intl Airport flights are approximately 39% more expensive at noon than in the afternoon

What is the cheapest airline that flies to Washington, D.C. Dulles Intl Airport from Ontario?

Frontier. Alaska Airlines, American Airlines, and Delta are the most popular carriers operating from Ontario to Washington, D.C. Dulles Intl Airport

How far in advance should you book Ontario to Washington, D.C. Dulles Intl Airport flights?

60 days before. The cheapest time to buy a flight from Ontario to Washington, D.C. Dulles Intl Airport is approximately 60 days to departure

Cheap Ontario to Washington, D.C. Dulles Intl Airport (ONT to IAD) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Ontario to Washington, D.C. Dulles Intl Airport

Best Price Found

$139

Fastest flight time

6h 29m

Direct flights

None
The best one-way flight to Washington, D.C. Dulles Intl Airport from Ontario in the past 72 hours is $139. The best round-trip flight deal from Ontario to Washington, D.C. Dulles Intl Airport found on momondo in the last 72 hours is $277.
The fastest flight from Ontario to Washington, D.C. Dulles Intl Airport takes 6h 29m
There are no direct flights from Ontario to Washington, D.C. Dulles Intl Airport. Popular non-direct route for this connection is Ontario Airport - Washington, D.C. Dulles Intl Airport.

  • How far is Ontario to Washington, D.C. Dulles Intl by plane?

    The distance between Ontario and Washington, D.C. Dulles Intl is about 2238.2 mi. 6h 29m is a normal flight duration for this route.

  • When did momondo last update prices for flights from Ontario Airport to Washington, D.C. Dulles Intl Airport?

    Prices for flights from Ontario Airport to Washington, D.C. Dulles Intl Airport are refreshed on a daily basis.

  • How many operators does momondo search for flights from Ontario Airport to Washington, D.C. Dulles Intl Airport?

  • How old do you have to be to fly from Ontario Airport to Washington, D.C. Dulles Intl Airport?

    Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Ontario Airport to Washington, D.C. Dulles Intl Airport.

  • What documentation or ID do you need to fly to Washington, D.C. Dulles Intl Airport?

    The necessary travel and health documents for your Washington, D.C. Dulles Intl Airport trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.


Why use momondo?

Why should I use momondo to find a flight deal from Ontario to Washington, D.C.?

momondo collates all your flight options in one place and lets you filter them to find the perfect flight from Ontario to Washington, D.C.. momondo saves you time and could save you money on your trip.

Can I find flights from Ontario to Washington, D.C. with flexible booking policies on momondo?

Yes. All flights to Washington, D.C. from Ontario on momondo can be compared and filtered by various policies on offer, including flexible booking.

How can momondo help me find flights from Ontario to Washington, D.C.?

momondo helps you find the best flight between Ontario and Washington, D.C. by providing filters to narrow your choice of flights to those matching your criteria. You can select flights based on numerous factors such as price, departure and landing times, airport and airline.

I’m not ready to book a flight from Ontario to Washington, D.C. right now. Can momondo alert me if prices change?

Yes. momondo can track prices for Ontario to Washington, D.C. flights and alert you when they change. Perform a search to set up the price alert. All that is required is a valid email address.


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