Cheap Flight Tickets from Ontario (ONT) to Washington (DCA), Starting at $343

Good to Know: Cheapest and Fastest ONT - DCA Flights

Useful information for finding best airline tickets from Ontario International to Ronald Reagan Washington National on your next trip.

Cheapest Round Trip Flight

$343

AA American Airlines • 1 stop • 15h 45m

Oct 15 – Oct 25

The cheapest round trip flight from Ontario to Washington (ONT-DCA-ONT) is currently $343

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Cheapest One way Flight

$481

DL Delta Airlines • 1 stop • 13h 40m

Oct 15

The cheapest one way flight from Ontario to Washington (ONT-DCA) is currently $481

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Fastest Flight

10h 20m

The fastest nonstop flight from Ontario to Washington (ONT-DCA) takes 10h 20m

Top Airlines Flying from Ontario to Washington

Southwest Airlines-WN

Southwest Airlines

American Airlines, AA

American Airlines

Delta Airline, DL

Delta Airlines

Latest Flight Deals from Ontario (ONT) to Washington (DCA)

Compare and book low fare round-trip air tickets from Ontario to Washington. Ideal for travelers with confirmed return itineraries.

Oct 15 - Oct 25, Economy
AA
Ontario → Washington
15h 45m
10:10 PM - 10:55 AM • 1 stop
AA
Ontario → Washington
12h 5m
5:00 AM - 9:25 AM • 1 stop
$343
American Airlines
Oct 15 - Oct 25, Economy
AA
Ontario → Washington
13h 40m
10:25 AM - 9:45 PM • 1 stop
AA
Ontario → Washington
12h 5m
5:00 AM - 9:25 AM • 1 stop
$343
American Airlines
Oct 15 - Oct 25, Economy
AA
Ontario → Washington
13h 36m
12:43 PM - 11:59 PM • 1 stop
AA
Ontario → Washington
12h 5m
5:00 AM - 9:25 AM • 1 stop
$343
American Airlines
Oct 15 - Oct 25, Economy
AA
Ontario → Washington
13h 26m
11:59 PM - 11:05 AM • 1 stop
AA
Ontario → Washington
12h 5m
5:00 AM - 9:25 AM • 1 stop
$343
American Airlines
Oct 15 - Oct 25, Economy
WN
Ontario → Washington
16h 40m
10:05 AM - 11:05 PM • 1 stop
WN
Ontario → Washington
12h 5m
6:10 AM - 10:35 AM • 1 stop
$801
Southwest Airlines
Oct 15 - Oct 25, Economy
WN
Ontario → Washington
10h 20m
10:05 AM - 7:25 PM • 1 stop
WN
Ontario → Washington
20h 15m
9:40 AM - 6:55 PM • 2 stops
$919
Southwest Airlines

Fly from Ontario to Washington with the Best Airfare Deals on FareLeaders

Looking for a cheap last-minute deal or the best round-trip flight from Ontario to Washington? Find the biggest savings on one-way and round-trip tickets right here.

FAQs on Ontario to Washington Flights

What are the airports in Ontario?
ONT
What’s the most popular airline flying from ONT to DCA?
The most popular airline flying from Ontario to Washington are
Can I fly from ONT to DCA non-stop?
NO
Which airlines fly nonstop between Ontario and Washington?
The non-stop flights between Ontario and Washington are .
What’s the earliest departure time from ONT to DCA Airport?
The earliest flight leaves ONT at 7:07 am and lands in DCA - Ronald Reagan Washington National
What are the airports in Washington?
IAD,BWI,DCA
Can I make changes to my Ontario to Washington flight tickets or cancel them on FareLeaders.com?
No. We are an airfare comparison site. All the tickets are booked by the travel agent offering the flight deal and any changes or cancellations to be made are directly done directly by them or the airlines.
Can I cancel my flight tickets from ONT to DCA?
Read the fare rules of the Ontario to Washington air tickets booked. Some airlines allow you to cancel the tickets within a stipulated time period with a cancellation fee.
Which airline alliances offer flights from Ontario and Washington?
operate flights between Ontario and Washington
How long does a flight from Ontario to Washington take?
It takes approximately 5 hour to fly non-stop from ONT to DCA, which is 2264.8 miles by air.
Which airlines provide the cheapest flights from Ontario (ONT) to Washington (DCA) ?
In the past couple of days, the cheapest tickets to DCA from ONT were found on DL : USD 1282
Do I need a passport to fly between ONT and DCA?
No
What’s the latest departure time from ONT to DCA ?
The last flight leaves ONT at 11:59 pm

Ontario (ONT) to Washington (DCA): Airport Information

Origin Airport Ontario International , Ontario, US
Destination Airport Ronald Reagan Washington National , Washington, US
Distance 2265 miles

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