Cheap Flight Tickets from Ontario (ONT) to Washington (DCA), Starting at $230

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

$230

F9 Frontier Airlines • 1 stop • 20h 44m

Sep 18 – Sep 24

The cheapest round trip flight from Ontario to Washington (ONT-DCA-ONT) is currently $230

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Fastest Flight

11h 43m

The fastest nonstop flight from Ontario to Washington (ONT-DCA) takes 11h 43m

Top Airlines Flying from Ontario to Washington

Southwest Airlines-WN

Southwest Airlines

Delta Airline, DL

Delta Airlines

United Airlines, UA

United Airlines

American Airlines, AA

American Airlines

Alaska Airlines -AS

Alaska 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.

Sep 18 - Sep 24, Economy
F9
Ontario → Washington
20h 44m
6:15 AM - 9:59 PM • 1 stop
F9
Ontario → Washington
32h 10m
6:00 PM - 10:30 AM • 1 stop
$230
Frontier Airlines
Sep 18 - Sep 24, Economy
F9
Ontario → Washington
12h 24m
6:15 AM - 4:59 PM • 1 stop
F9
Ontario → Washington
32h 10m
6:00 PM - 10:30 AM • 1 stop
$230
Frontier Airlines
Sep 18 - Sep 24, Economy
UA
Ontario → Washington
11h 43m
5:00 AM - 3:03 PM • 1 stop
UA
Ontario → Washington
12h 20m
4:18 PM - 8:58 PM • 1 stop
$393
United Airlines
Sep 18 - Sep 24, Economy
DL
Ontario → Washington
13h 47m
12:17 PM - 11:44 PM • 1 stop
DL
Ontario → Washington
8h 53m
4:41 PM - 7:14 PM • nonstop
$740
Delta Airlines
Sep 18 - Sep 24, Economy
DL
Ontario → Washington
12h 5m
7:05 AM - 5:30 PM • 1 stop
DL
Ontario → Washington
8h 53m
4:41 PM - 7:14 PM • nonstop
$740
Delta Airlines
Sep 18 - Sep 24, Economy
DL
Ontario → Washington
12h 3m
12:17 PM - 10:40 PM • 1 stop
DL
Ontario → Washington
11h 45m
6:10 AM - 10:15 AM • 1 stop
$745
Delta 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 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 740
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 12:17 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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