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United Flights from Ontario (ONT) to Washington (DCA)

Trip Type
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Amazing United ONT to DCA Flight Deals

The cheapest flights to Ronald Reagan Washington National found within the past 7 days were $202 round trip and $121 one way. Prices and availability subject to change. Additional terms may apply.

Mon, Nov 2 -
ONT
Ontario
to
DCA
Washington
$121

One way

found 1 hour ago

Open ONT to DCA flights search result page
Thu, Nov 5 -
ONT
Ontario
to
DCA
Washington
$137

One way

found 6 hours ago

Open ONT to DCA flights search result page
Wed, Nov 25 -
ONT
Ontario
to
DCA
Washington
$179

One way

found 5 hours ago

Open ONT to DCA flights search result page
Fri, Nov 20 -
ONT
Ontario
to
DCA
Washington
$181

One way

found 1 hour ago

Open ONT to DCA flights search result page
Sat, Oct 31 - Sat, Nov 7
ONT
Ontario
to
DCA
Washington
$202

Roundtrip

found 6 days ago

Open ONT to DCA flights search result page
Fri, Oct 30 - Sat, Nov 7
ONT
Ontario
to
DCA
Washington
$214

Roundtrip

found 20 hours ago

Open ONT to DCA flights search result page
Wed, Oct 14 -
ONT
Ontario
to
DCA
Washington
$223

One way

just found

Open ONT to DCA flights search result page
Mon, Oct 19 -
ONT
Ontario
to
DCA
Washington
$224

One way

found 8 hours ago

Open ONT to DCA flights search result page
Fri, Oct 9 - Mon, Oct 26
ONT
Ontario
to
DCA
Washington
$232

Roundtrip

found 5 days ago

Open ONT to DCA flights search result page
Mon, Nov 2 - Tue, Nov 3
ONT
Ontario
to
DCA
Washington
$240

Roundtrip

found 4 days ago

Open ONT to DCA flights search result page
Wed, Oct 28 - Tue, Nov 3
ONT
Ontario
to
DCA
Washington
$242

Roundtrip

found 4 days ago

Open ONT to DCA flights search result page
Thu, Nov 5 - Tue, Nov 10
ONT
Ontario
to
DCA
Washington
$246

Roundtrip

found 6 hours ago

Open ONT to DCA flights search result page
Sat, Oct 31 - Sat, Nov 7
ONT
Ontario
to
DCA
Washington
$202

Roundtrip

found 6 days ago

Open ONT to DCA flights search result page
Fri, Oct 30 - Sat, Nov 7
ONT
Ontario
to
DCA
Washington
$214

Roundtrip

found 20 hours ago

Open ONT to DCA flights search result page
Wed, Oct 14 -
ONT
Ontario
to
DCA
Washington
$223

One way

just found

Open ONT to DCA flights search result page
Mon, Oct 19 -
ONT
Ontario
to
DCA
Washington
$224

One way

found 8 hours ago

Open ONT to DCA flights search result page
Fri, Oct 9 - Mon, Oct 26
ONT
Ontario
to
DCA
Washington
$232

Roundtrip

found 5 days ago

Open ONT to DCA flights search result page
Wed, Oct 28 - Tue, Nov 3
ONT
Ontario
to
DCA
Washington
$242

Roundtrip

found 4 days ago

Open ONT to DCA flights search result page
Mon, Nov 2 -
ONT
Ontario
to
DCA
Washington
$121

One way

found 1 hour ago

Open ONT to DCA flights search result page
Thu, Nov 5 -
ONT
Ontario
to
DCA
Washington
$137

One way

found 6 hours ago

Open ONT to DCA flights search result page
Wed, Nov 25 -
ONT
Ontario
to
DCA
Washington
$179

One way

found 5 hours ago

Open ONT to DCA flights search result page
Fri, Nov 20 -
ONT
Ontario
to
DCA
Washington
$181

One way

found 1 hour ago

Open ONT to DCA flights search result page
Mon, Nov 2 - Tue, Nov 3
ONT
Ontario
to
DCA
Washington
$240

Roundtrip

found 4 days ago

Open ONT to DCA flights search result page
Thu, Nov 5 - Tue, Nov 10
ONT
Ontario
to
DCA
Washington
$246

Roundtrip

found 6 hours ago

Open ONT to DCA flights search result page

FAQs about United Airlines Flights from ONT to DCA

What terminal is United Airlines at Ontario, CA (ONT-Los Angeles - Ontario Intl.)?

Before you set off from Ontario, CA (ONT-Los Angeles - Ontario Intl.) to Washington, DC (DCA-Ronald Reagan Washington National) with United Airlines, it might be a good idea to get in touch with the airline to find out your terminal information. While your ticket should have some of the relevant details, we can't guarantee it.

Are there United Airlines non-stop flights from ONT to DCA?

If you're considering flying with United Airlines from Ontario, CA (ONT-Los Angeles - Ontario Intl.) to Washington, DC (DCA-Ronald Reagan Washington National), you'll have to make at least one stop. While you're waiting for your connecting flight, take the opportunity to grab a quick bite or explore the airport shops.

How long is an United Airlines flight from ONT to DCA?

Bring that novel you've been desperate to read. A flight from Ontario, CA (ONT-Los Angeles - Ontario Intl.) to Washington, DC (DCA-Ronald Reagan Washington National) with United Airlines will take on average 6 hours and 29 minutes. You'll have ample time to completely lose yourself in the storyline.

How many direct and indirect flights does United Airlines fly from ONT to DCA?

With roughly 17 United Airlines flights from ONT to DCA on offer every month, you're not short on choice.

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, DC (DCA-Ronald Reagan Washington National), please visit our Customer Service Portal.

What is the best day to buy a plane ticket?

This just in! Airfares offered on Tuesdays tend to be the cheapest, according to flight demand on Travelocity in 2019. Wednesday and Friday prices are also good, but you may want to prepare your budget if booking on a Monday, as data shows the start of the week 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 2019, flights departing on a Tuesday 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 2019 flight demand trends, last minute planners can still bag a bargain with some of the cheapest fares appearing 1-2 weeks prior to their travel dates.

How can I save money on airline tickets?

We'll let you in on a secret...You can save big on flights if you mix and match your airlines and fare types. In fact, travelers who booked flights on Travelocity in 2019 saved nearly 50% when their return flights consisted of two different airlines or fare types.

*According to flight demand on Travelocity.com from January to December 2019. Savings are subject to change based on departure location, date and destination.

Popular United Flight Routes from ONT

Top United Flight Routes from DCA

Top Flights for United originating from ONT

*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.