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Uncover the best deals on Ontario to Washington flights by comparing fares from hundreds of airlines and agencies.
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
$232
American Airlines
• 1 stop
• 15h 28m
Nov 04 – Nov 11
The cheapest round trip flight from Ontario to Washington (ONT-DCA-ONT) is currently $232
Fastest Flight
10h 55m
The fastest nonstop flight from Ontario to Washington (ONT-DCA) takes 10h 55m
Top Airlines Flying from Ontario to Washington
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.
Nov 04 - Nov 11, Economy
Ontario → Washington
15h 28m
10:30 PM - 10:58 AM • 1 stop
Ontario → Washington
12h 20m
5:00 AM - 9:40 AM • 1 stop
American Airlines
Nov 03 - Nov 03, Economy
Ontario → Washington
10h 55m
5:00 AM - 2:55 PM • 1 stop
Ontario → Washington
12h 29m
6:06 PM - 10:55 PM • 1 stop
United Airlines
Nov 03 - Nov 03, Economy
Ontario → Washington
11h 49m
6:00 AM - 4:09 PM • 1 stop
Ontario → Washington
15h 17m
6:26 PM - 12:43 AM • 1 stop
United Airlines
Nov 03 - Nov 03, Economy
Ontario → Washington
11h 50m
7:00 AM - 5:10 PM • 1 stop
Ontario → Washington
13h 23m
7:40 PM - 12:43 AM • 1 stop
United Airlines
Nov 03 - Nov 03, Economy
Ontario → Washington
11h 59m
7:07 AM - 5:26 PM • 1 stop
Ontario → Washington
13h 23m
7:40 PM - 12:43 AM • 1 stop
Delta Airlines
Flying to Washington soon? We've surfaced some of the most affordable last-minute flights from Ontario to Washington, ideal for urgent plans or spontaneous trips.
Nov 04 - Nov 11, Economy
Ontario → Washington
15h 28m
10:30 PM - 10:58 AM • 1 stop
Ontario → Washington
12h 20m
5:00 AM - 9:40 AM • 1 stop
American Airlines
Nov 03 - Nov 03, Economy
Ontario → Washington
10h 55m
5:00 AM - 2:55 PM • 1 stop
Ontario → Washington
12h 29m
6:06 PM - 10:55 PM • 1 stop
United Airlines
Nov 03 - Nov 03, Economy
Ontario → Washington
11h 49m
6:00 AM - 4:09 PM • 1 stop
Ontario → Washington
15h 17m
6:26 PM - 12:43 AM • 1 stop
United Airlines
Nov 03 - Nov 03, Economy
Ontario → Washington
11h 50m
7:00 AM - 5:10 PM • 1 stop
Ontario → Washington
13h 23m
7:40 PM - 12:43 AM • 1 stop
United Airlines
Nov 03 - Nov 03, Economy
Ontario → Washington
11h 59m
7:07 AM - 5:26 PM • 1 stop
Ontario → Washington
13h 23m
7:40 PM - 12:43 AM • 1 stop
Delta Airlines
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 5:00 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 1110
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 10:30 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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