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Cheap flights from Ontario to Washington, D.C. from $63

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. departing on 11/7. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
0 bags

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Easily compare round-trip flights from Ontario to Washington, D.C.

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. by changing tabs
Frontier
Oct 31
ONT6:30 amOntario
11h 05m
1 stop
BWI8:35 pmBaltimore/Washington
Nov 7
BWI9:24 pmBaltimore/Washington
13h 07m
1 stop
ONT7:31 amOntario
Multiple Airlines
Nov 3
ONT5:30 amOntario
11h 28m
1 stop
BWI7:58 pmBaltimore/Washington
Nov 5
BWI7:00 amBaltimore/Washington
11h 20m
1 stop
ONT3:20 pmOntario
Frontier
Oct 31
ONT6:30 amOntario
7h 29m
1 stop
DCA4:59 pmWashington, D.C. Reagan-National
Nov 9
DCA7:00 amWashington, D.C. Reagan-National
11h 16m
1 stop
ONT3:16 pmOntario
Frontier
Oct 31
ONT6:30 amOntario
11h 05m
1 stop
BWI8:35 pmBaltimore/Washington
Nov 7
BWI9:24 pmBaltimore/Washington
13h 07m
1 stop
ONT7:31 amOntario
Delta
Dec 25
ONT1:05 pmOntario
8h 03m
1 stop
BWI12:08 amBaltimore/Washington
Jan 7
BWI6:10 amBaltimore/Washington
8h 32m
1 stop
ONT11:42 amOntario
United Airlines
Oct 15
ONT6:20 pmOntario
8h 04m
1 stop
IAD5:24 amWashington, D.C. Dulles Intl
Oct 16
IAD4:10 pmWashington, D.C. Dulles Intl
9h 46m
1 stop
ONT10:56 pmOntario

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

If you're looking for one-way flights from Ontario to Washington, D.C., view some of our deals below provided by American Airlines, Frontier and United Airlines
Frontier
Nov 7
ONT6:30 amOntario
7h 29m
1 stop
DCA4:59 pmWashington, D.C. Reagan-National
Multiple Airlines
Sep 24
ONT2:01 pmOntario
14h 08m
1 stop
BWI7:09 amBaltimore/Washington
Frontier
Nov 6
ONT10:55 amOntario
8h 03m
1 stop
DCA9:58 pmWashington, D.C. Reagan-National

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

Find and compare round-trip flight prices for your last-minute flight from Ontario to Washington, D.C.
Frontier
Sep 26
ONT6:06 pmOntario
21h 03m
1 stop
DCA6:09 pmWashington, D.C. Reagan-National
Oct 3
DCA12:59 pmWashington, D.C. Reagan-National
21h 23m
1 stop
ONT7:22 amOntario
Frontier
Sep 23
ONT6:00 pmOntario
15h 09m
1 stop
DCA12:09 pmWashington, D.C. Reagan-National
Oct 3
DCA7:00 amWashington, D.C. Reagan-National
19h 59m
1 stop
ONT11:59 pmOntario
Delta
Sep 30
ONT10:00 pmOntario
8h 01m
1 stop
IAD9:01 amWashington, D.C. Dulles Intl
Oct 9
IAD6:00 amWashington, D.C. Dulles Intl
7h 28m
1 stop
ONT10:28 amOntario
American Airlines
Sep 30
ONT7:30 pmOntario
12h 04m
2 stops
IAD10:34 amWashington, D.C. Dulles Intl
Oct 8
IAD11:53 amWashington, D.C. Dulles Intl
13h 06m
2 stops
ONT9:59 pmOntario
Frontier
Sep 26
ONT6:06 pmOntario
24h 53m
1 stop
DCA9:59 pmWashington, D.C. Reagan-National
Oct 2
DCA7:00 amWashington, D.C. Reagan-National
27h 22m
1 stop
ONT7:22 amOntario
Alaska Airlines
Sep 30
ONT10:10 amOntario
10h 49m
1 stop
IAD11:59 pmWashington, D.C. Dulles Intl
Oct 7
IAD7:06 pmWashington, D.C. Dulles Intl
26h 55m
2 stops
ONT7:01 pmOntario

United Airlines flights from Ontario to Washington, D.C.

Our best United Airlines deals on Ontario to Washington, D.C. flight tickets
United Airlines
Oct 15
ONT6:20 pmOntario
8h 04m
1 stop
IAD5:24 amWashington, D.C. Dulles Intl
Oct 16
IAD4:10 pmWashington, D.C. Dulles Intl
9h 46m
1 stop
ONT10:56 pmOntario
United Airlines
Jan 19
ONT6:00 amOntario
6h 59m
1 stop
DCA3:59 pmWashington, D.C. Reagan-National
Jan 22
DCA2:39 pmWashington, D.C. Reagan-National
10h 18m
1 stop
ONT9:57 pmOntario
United Airlines
Oct 17
ONT6:20 pmOntario
7h 46m
1 stop
BWI5:06 amBaltimore/Washington
Oct 23
BWI10:05 amBaltimore/Washington
10h 12m
1 stop
ONT5:17 pmOntario

American Airlines flights from Ontario to Washington, D.C.

Our best American Airlines deals on Ontario to Washington, D.C. flight tickets
American Airlines
Oct 15
ONT7:40 pmOntario
10h 03m
2 stops
IAD8:43 amWashington, D.C. Dulles Intl
Oct 16
IAD5:07 pmWashington, D.C. Dulles Intl
9h 51m
1 stop
ONT11:58 pmOntario
American Airlines
Dec 7
ONT9:48 amOntario
9h 36m
2 stops
IAD10:24 pmWashington, D.C. Dulles Intl
Dec 14
IAD5:00 amWashington, D.C. Dulles Intl
13h 25m
2 stops
ONT3:25 pmOntario
American Airlines
Sep 30
ONT7:30 pmOntario
12h 04m
2 stops
IAD10:34 amWashington, D.C. Dulles Intl
Oct 8
IAD11:53 amWashington, D.C. Dulles Intl
13h 06m
2 stops
ONT9:59 pmOntario

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

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.?

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

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

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

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

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

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

Spirit Airlines. Spirit Airlines, Frontier, and Delta are the most popular carriers operating from Ontario to Washington, D.C.

What is the cheapest Ontario to Washington, D.C. flight route?

Ontario - Washington, D.C. Reagan-National. Fly from Ontario to Washington, D.C. Reagan-National for the best Ontario - Washington, D.C. flight prices

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

38 days before. The cheapest time to buy a flight from Ontario to Washington, D.C. is approximately 38 days to departure

How have Ontario to Washington, D.C. flight prices changed over time?

As of September 2024, prices for Ontario to Washington, D.C. flights are approximately 0% more expensive when compared to flights at the same time last year.

When to book flights from Ontario to Washington, D.C.

Are you open to changing your travel dates? Check out the ideal times to fly from Ontario to Washington, D.C. according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Ontario to Washington, D.C. (ONT to WAS) flight deals and tips

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

Best Price Found

$63

Fastest flight time

6h 23m

Direct flights

None

Airports in Washington, D.C.

3 airports
The best one-way flight to Washington, D.C. from Ontario in the past 72 hours is $63. The best round-trip flight deal from Ontario to Washington, D.C. found on momondo in the last 72 hours is $128.
The fastest flight from Ontario to Washington, D.C. takes 6h 23m
There are no direct flights from Ontario to Washington, D.C.. Popular non-direct routes for this connection are Ontario Airport - Washington, D.C. Reagan-National Airport and Ontario Airport - Baltimore/Washington Airport.
There are 3 airports near Washington, D.C.: Washington, D.C. Reagan-National (DCA), Baltimore/Washington (BWI), Washington, D.C. Dulles Intl (IAD)

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

    Ontario and Washington, D.C. are 2260.6 mi apart from one another. In terms of flight time, this usually takes a little over 6h 33m.

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

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

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

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

    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..

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

    The required travel and health documents for your Washington, D.C. trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Washington, D.C.. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

  • What is the most popular plane model from Ontario to Washington, D.C.?

  • What is the most popular airline from Ontario to Washington, D.C.?


Best airlines flying from Ontario to Washington, D.C.

Compare and see reviews for airlines that fly from Ontario to Washington, D.C. with momondo
Airline
Rating
Free Cancellation
Price
Spirit AirlinesPriceFrom $130Free CancellationRating
6.3
8,262 reviews
Search Spirit Airlines flights
FrontierPriceFrom $138Free CancellationRating
6.1
3,699 reviews
Search Frontier flights
American AirlinesPriceFrom $192Free CancellationRating
7.3
10,000 reviews
Search American Airlines flights
United AirlinesPriceFrom $254Free CancellationRating
7.4
9,540 reviews
Search United Airlines flights
DeltaPriceFrom $256Free CancellationRating
8.0
9,087 reviews
Search Delta flights
SouthwestPriceFrom $286Free CancellationRating
8.1
5,333 reviews
Search Southwest flights

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. momondo allows you to filter the results for Ontario to Washington, D.C. flights to just show those with flexible booking policies.

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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Find better results for your trip to the United States

Fly into one of these airports located in Washington, D.C.
Airports listed have a maximum distance of 22.4 mi from Washington, D.C.