₩227,900 Cheap Flights from Ontario (ONT) to Washington (DCA)

View ₩227,900 flight on Thu, Nov 27, 2025Opens in a new window

Popular airlines from Los Angeles - Ontario Intl. Airport (ONT) to Ronald Reagan Washington National Airport (DCA)

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Cheap Flights from Ontario to Washington (ONT-DCA)

Prices were available within the past 7 days and start at ₩227,900 for one-way flights and ₩464,100 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Delta
Thu, Jan 15 - Wed, Jan 21
ONT
Ontario
DCA
Washington
₩464,100 Roundtrip, found 21 hours ago
₩464,100
Roundtrip
found 21 hours ago
Select Delta flight, departing Thu, Jan 15 from Ontario to Washington, returning Wed, Jan 21, priced at ₩464,100 found 21 hours ago
Delta
Thu, Jan 15 - Wed, Jan 21
ONT
Ontario
DCA
Washington
₩464,300 Roundtrip, found 21 hours ago
₩464,300
Roundtrip
found 21 hours ago
Select Delta flight, departing Thu, Jan 15 from Ontario to Washington, returning Wed, Jan 21, priced at ₩464,300 found 21 hours ago
Delta
Thu, Nov 27 - Sat, Dec 6
ONT
Ontario
DCA
Washington
₩475,800 Roundtrip, found 2 days ago
₩475,800
Roundtrip
found 2 days ago
Select Delta flight, departing Thu, Nov 27 from Ontario to Washington, returning Sat, Dec 6, priced at ₩475,800 found 2 days ago
Delta
Thu, Nov 27 - Sat, Dec 6
ONT
Ontario
DCA
Washington
₩504,300 Roundtrip, found 2 days ago
₩504,300
Roundtrip
found 2 days ago
Select Delta flight, departing Thu, Nov 27 from Ontario to Washington, returning Sat, Dec 6, priced at ₩504,300 found 2 days ago
Delta
Tue, Dec 9 - Fri, Dec 12
ONT
Ontario
DCA
Washington
₩530,100 Roundtrip, found 2 days ago
₩530,100
Roundtrip
found 2 days ago
Select Delta flight, departing Tue, Dec 9 from Ontario to Washington, returning Fri, Dec 12, priced at ₩530,100 found 2 days ago
Delta
Thu, Jan 15 - Wed, Jan 21
ONT
Ontario
DCA
Washington
₩531,300 Roundtrip, found 21 hours ago
₩531,300
Roundtrip
found 21 hours ago
Select Delta flight, departing Thu, Jan 15 from Ontario to Washington, returning Wed, Jan 21, priced at ₩531,300 found 21 hours ago
Delta
Thu, Jan 15 - Wed, Jan 21
ONT
Ontario
DCA
Washington
₩531,500 Roundtrip, found 21 hours ago
₩531,500
Roundtrip
found 21 hours ago
Select Delta flight, departing Thu, Jan 15 from Ontario to Washington, returning Wed, Jan 21, priced at ₩531,500 found 21 hours ago
Hawaiian Airlines
Thu, Jan 15 - Wed, Jan 21
ONT
Ontario
DCA
Washington
₩533,900 Roundtrip, found 21 hours ago
₩533,900
Roundtrip
found 21 hours ago
Select Hawaiian Airlines flight, departing Thu, Jan 15 from Ontario to Washington, returning Wed, Jan 21, priced at ₩533,900 found 21 hours ago
American Airlines
Thu, Jan 15 - Wed, Jan 21
ONT
Ontario
DCA
Washington
₩535,500 Roundtrip, found 21 hours ago
₩535,500
Roundtrip
found 21 hours ago
Select American Airlines flight, departing Thu, Jan 15 from Ontario to Washington, returning Wed, Jan 21, priced at ₩535,500 found 21 hours ago
United
Thu, Jan 15 - Wed, Jan 21
ONT
Ontario
DCA
Washington
₩543,000 Roundtrip, found 21 hours ago
₩543,000
Roundtrip
found 21 hours ago
Select United flight, departing Thu, Jan 15 from Ontario to Washington, returning Wed, Jan 21, priced at ₩543,000 found 21 hours ago

Find the cheapest month to fly from Ontario (ONT) to Washington (DCA)

January is typically the cheapest month to fly

From ₩193,689 - ₩564,639 per traveler.

Alternative airports near Washington

Prices were available within the past 7 days. Prices and availability are subject to change.

Select flight to Baltimore Washington Intl. Thurgood Marshall BWI. Cheapest option available. Average driving time to city center is 40 minutes. Flights from ₩561,500
BWI
Baltimore Washington Intl. Thurgood Marshall
Cheapest
Average driving time to city center40 min
Flights from ₩561,500

Frequently asked questions

How much is a flight from ONT to National Airport?
Round-trip tickets from Ontario Airport to DCA start from ₩464,100. This figure is based on fares offered within the last 7 days on Expedia for flights departing within the next year — book today to avoid missing out. Prices and availability are subject to change. Additional terms apply.
Do I need to pay a cancellation fee if I cancel my flight from ONT to National Airport?
We get that things come up unexpectedly, so we've made it as simple as possible for you to cancel your trip online. Just visit the Customer Service Portal and follow the instructions.
How do I find cheap flights from Ontario Airport to DCA that have flexible change policies?
Many airlines offer the option to reschedule your flight without a change fee. All you pay is the difference between the original flight and the new flight. When you're searching for Los Angeles - Ontario Intl. Airport (ONT) to National Airport flights, you'll see a "no change fees" filter for you to select.
How far is the flight from Los Angeles - Ontario Intl. Airport (ONT) to DCA?
It's around 3,600 kilometers between Ontario and Arlington, so you'll be in your seat for a while. Keep yourself occupied with things like a magazine or a good old-fashioned book.
Which airlines fly direct from Ontario Airport to DCA?
If you want to travel straight from Ontario Airport to National Airport, you'll need to book a flight with at least one stop. Unfortunately, there aren't any airlines that fly directly between these airports.
Are Los Angeles - Ontario Intl. Airport (ONT) to National Airport flight tickets cheaper when they're purchased at the last minute?
Booking your trip from Ontario Airport to National Airport last minute could be your ticket to an awesome deal. However, it could end up costing a good deal more! If you'd prefer not to take any chances, book well ahead of your departure date. In fact, Expedia has some of the best bargains up to a year in advance. If your preferred carrier hasn't released tickets yet, check back regularly as deals are updated all the time on Expedia.

Travel information

0
Origin airport
Los Angeles - Ontario Intl.
Destination airport
Ronald Reagan Washington National
Airlines serving
American Airlines, Delta, Hawaiian Airlines, United
Roundtrip price
₩464,100
Distance
3614 km

Book with confidence

Los Angeles to Washington Flights

Sometimes you just need to get out of town or maybe you’re looking for a change of scenery. Regardless of the reason, a flight from Los Angeles to Washington will do just the trick! Go on, plan to see all the famous landmarks and eat your weight in the local cuisine. Your trip is beckoning, so answer the call by packing your suitcase and filling your travel itinerary with exploring Washington.

Whether you’re flying for business or jet-setting on your personal time, you’ve come to the right place. Here at Expedia.com, we’ll pair you up with ONT to DCA flights that won’t make your bank account wince. Ready to temporarily leave behind Los Angeles for new horizons? Browse through our cheap airfare, and filter by flight times and dates until you find just what you had in mind. From flights without layovers to ones that arrive early in the morning, you’ll come across plane tickets that suit your travel preferences. You can even bundle your flight to DCA with hotels and car rentals to score even bigger savings.

All set to hit the clouds? Book your travel arrangements with us today and have left-over money to put toward your travel outings and adventures.

Los Angeles to Washington Flights

Explore a world of travel with Expedia

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