Cheap Flights from Ontario to Washington

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

    notification illustration

    Be in the know

    Get alerts if flight prices drop or rise*
    deals illustration

    Book smarter

    Save up to 40% on select hotels after you book a flight*
    trophy illustration

    Earn twice

    Earn your airline miles on top of our rewards
    Sign in

Cheap Flights from Ontario to Washington (ONT-DCA)

Prices were available within the past 7 days and start at for one-way flights and S$414 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Delta
Thu, 27 Nov - Wed, 10 Dec
ONT
Ontario
DCA
Washington
S$414 Return, found 6 hours ago
S$414
Return
found 6 hours ago
Select Delta flight, departing Thu, 27 Nov from Ontario to Washington, returning Wed, 10 Dec, priced at S$414 found 6 hours ago
Delta
Thu, 25 Dec - Thu, 8 Jan
ONT
Ontario
DCA
Washington
S$466 Return, found 6 hours ago
S$466
Return
found 6 hours ago
Select Delta flight, departing Thu, 25 Dec from Ontario to Washington, returning Thu, 8 Jan, priced at S$466 found 6 hours ago

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

January is typically the cheapest month to fly

From S$178 - S$519 per traveller.

Frequently asked questions

How much is a flight from ONT to National Airport?
Round-trip tickets from Ontario Airport to DCA start from S$414. 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 kilometres 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

Origin airport
Los Angeles - Ontario Intl.
Destination airport
Ronald Reagan Washington National
Airlines serving
Delta
Return price
S$414
Distance
3614 km

Book with confidence

Perfect flights from Ontario to Washington

Your Journey from Ontario to Washington

Start your unforgettable journey with Expedia. Our broad selection of flights from Ontario to Washington caters to every travel need. Whether you're yearning for a romantic escape, a solo adventure, or a cultural immersion, we've got you covered.
 

Choosing Your Ideal Flight

With Expedia, you have access to a wide range of airlines, including Delta. Our selection of flights from Los Angeles - Ontario Intl. to Ronald Reagan Washington National caters to every traveler's requirements, ensuring your journey aligns with your schedule. With options from 2 airlines, you're bound to find the perfect flight.
 

Maximizing Value with Ontario to Washington Flights

Experience the joy of finding cheap flights from Los Angeles - Ontario Intl. to Ronald Reagan Washington National that fit your budget. Keep an eye out for our special deals and discounts, and check our flexible one-way fares and roundtrip prices from S$414*.
 

Pre-Flight Essentials

Ensure a smooth journey from Ontario to Washington with Expedia. From information about check-in times and in-flight amenities to guidance on baggage policies, we provide all the essentials to prepare you for your flight.
 

Experience the Vibrant Washington

Picture yourself stepping off the plane in Washington and immersing yourself in the unique atmosphere of . From local markets to cultural festivals, each city offers its distinct charm. Make the most of your trip by exploring local attractions and indulging in the local cuisine. With Expedia, explore all this and more, tailored to your budget.
 

Added Convenience on Your Ontario to Washington Flight

Traveling with Expedia is more than just a flight. We offer details about in-flight amenities, baggage policies, and more to ensure a smooth and hassle-free journey. Choose from our variety of airlines and embark on a memorable journey from Ontario to Washington.
 

Beyond the Flight – Exploring Washington

With Expedia, your adventure extends beyond the flight. Explore Washington at your own pace by renting a car or booking a hotel. Discover hidden gems off the beaten path and create unforgettable memories.
 

Book Your Flight from Ontario to Washington with Confidence

Planning your next great adventure is a breeze with Expedia. Our user-friendly platform, unbeatable prices, and round-the-clock customer support make your travel experience seamless and stress-free. Embark on your journey from Ontario to Washington with confidence. Book your travel arrangements with Expedia today.
 
*Note: Prices may vary based on availability and are subject to change.
Perfect flights from Ontario to Washington

Explore a world of travel with Expedia

Ontario Airports

Los Angeles

Los Angeles Intl. to Washington
S$307.70
*Available to Expedia members.