Title: Cheap Flights from Washington (IAD) to Oceanside (OCN) - Expedia.ca ![](https://images.trvl-media.com/place/9154/4dd501e5-a647-4ad5-8696-4955bac0424d.jpg?impolicy=fcrop&w=1200&h=500&q=medium) ![](https://images.trvl-media.com/place/9154/4dd501e5-a647-4ad5-8696-4955bac0424d.jpg?impolicy=fcrop&w=1200&h=500&q=medium) # Cheap Flights from Washington (IAD) to Oceanside (OCN) - [Roundtrip](?flightType=roundtrip) - [One-way](?flightType=oneway) - [Multi-city](?flightType=multicity) ### Travellers Adults ChildrenAges 2 to 17 InfantsYounger than 2 EconomyPremium economyBusiness classFirst class Leaving from Going to Departing Returning Add a place to stay Add a car Direct flights only ## Popular airlines from Washington Dulles International Airport (IAD) to Oceanside, CA (OCN) - ![Air Canada](https://forever.travel-assets.com/flex/flexmanager/images/2024/09/23/landing_airline_sq_logo_AC.svg) Air Canada [](https://www.expedia.ca/Flights-Search?leg1=from:iad,to:ocn,departure:18/11/2025TANYT&leg2=from:ocn,to:iad,departure:25/11/2025TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&filters=[{"preferredAirlineFilterValue":{"carrierCode":"AC"}}]) - ![WestJet](https://forever.travel-assets.com/flex/flexmanager/images/2024/09/23/landing_airline_sq_logo_WS.svg) WestJet [](https://www.expedia.ca/Flights-Search?leg1=from:iad,to:ocn,departure:18/11/2025TANYT&leg2=from:ocn,to:iad,departure:25/11/2025TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&filters=[{"preferredAirlineFilterValue":{"carrierCode":"WS"}}]) - ![Flair Airlines](https://a.travel-assets.com/air/airlines/f8_sq.svg) Flair Airlines [](https://www.expedia.ca/Flights-Search?leg1=from:iad,to:ocn,departure:18/11/2025TANYT&leg2=from:ocn,to:iad,departure:25/11/2025TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&filters=[{"preferredAirlineFilterValue":{"carrierCode":"F8"}}]) - ![American Airlines](https://forever.travel-assets.com/flex/flexmanager/images/2024/09/23/landing_airline_sq_logo_AA.svg) American Airlines [](https://www.expedia.ca/Flights-Search?leg1=from:iad,to:ocn,departure:18/11/2025TANYT&leg2=from:ocn,to:iad,departure:25/11/2025TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&filters=[{"preferredAirlineFilterValue":{"carrierCode":"AA"}}]) - ![United](https://forever.travel-assets.com/flex/flexmanager/images/2024/09/23/landing_airline_sq_logo_UA.svg) United [](https://www.expedia.ca/Flights-Search?leg1=from:iad,to:ocn,departure:18/11/2025TANYT&leg2=from:ocn,to:iad,departure:25/11/2025TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&filters=[{"preferredAirlineFilterValue":{"carrierCode":"UA"}}]) - ![Delta](https://forever.travel-assets.com/flex/flexmanager/images/2024/09/23/landing_airline_sq_logo_DL.svg) Delta [](https://www.expedia.ca/Flights-Search?leg1=from:iad,to:ocn,departure:18/11/2025TANYT&leg2=from:ocn,to:iad,departure:25/11/2025TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&filters=[{"preferredAirlineFilterValue":{"carrierCode":"DL"}}]) - ![Porter Airlines](https://forever.travel-assets.com/flex/flexmanager/images/2024/09/23/landing_airline_sq_logo_PD.svg) Porter Airlines [](https://www.expedia.ca/Flights-Search?leg1=from:iad,to:ocn,departure:18/11/2025TANYT&leg2=from:ocn,to:iad,departure:25/11/2025TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&filters=[{"preferredAirlineFilterValue":{"carrierCode":"PD"}}]) - ![notification illustration](https://a.travel-assets.com/travel-assets-manager/pictogram-bex/light__notification.svg) ### Be in the know Get alerts if flight prices drop or rise\* - ![deals illustration](https://a.travel-assets.com/travel-assets-manager/pictogram-bex/light__deals.svg) ### Book smarter Save up to 30% on select hotels after you book a flight\* - ![trophy illustration](https://a.travel-assets.com/travel-assets-manager/pictogram-bex/light__trophy.svg) ### Earn twice Earn your airline miles on top of our rewards [Sign in](https://www.expedia.ca/login) Flight from Washington to Oceanside (IAD - OCN) route information | Origin airport | Washington Dulles Intl. | | --- | --- | | Destination airport | Oceanside | | Distance | 3591 km | ## Chantilly to Oceanside Flights **The easy way to book your flights from Washington to Oceanside**  With Expedia, it’s simple to find and book flights to Oceanside from Washington whether you’re traveling for business or pleasure. Enter your travel dates, hit search, and choose your flight from airlines that cover this route. There are nonstop flights to Oceanside, too.   Choose your preferred carrier and cabin class with the advanced search tool and select your ideal departure time. Then, if you want, you can see just nonstop or refundable flights. And if you’re traveling last minute, just enter the date to check out flights from Washington to Oceanside today, tomorrow, or this week.   **Save dollars with cheap flights from Washington Dulles Intl., IAD to Oceanside, OCN**  Sort your search results by price to find great deals on your flight from Washington to Oceanside—you get all your cheapest options first. Grab yourself a bargain now—the lowest price on flights to Oceanside from Washington currently is just rising to .   Here are more money-saving tips:  - Fly in when flight prices are normally at their lowest  - Book about a month to 6 weeks before you travel for the best prices to Oceanside   - Avoid peak season and weekends when flights can cost more - Early morning and late-night flights are sometimes cheaper, so try varying your travel times  - One surefire way to save money on your flight is to book your flight and hotel together with Expedia. Sometimes, the savings are so large that the flight is basically free!  **Reasons to choose Expedia for your flight to Oceanside from Washington**  Whatever your destination, budget, or reason to travel, in just one quick search, you can choose from loads of flights, airlines, and cabin classes. The filters make it quick and easy to find your ideal flights, and if you choose one of the flexible options, you won’t be charged to change your flight. So book your flight to Oceanside with Expedia today. ## Frequently asked questions ### How much is a flight from IAD to OCN? > Based on fares offered within the last 7 days on Expedia for flights departing within the next year, round-trip journeys between Dulles Intl. Airport and OCN start from . Make your booking ASAP to secure the best price for your next big adventure. Prices and availability are subject to change. Additional terms apply. ### Do I need to pay a cancellation fee if I cancel my flight from Dulles Intl. Airport to OCN? > This differs between air carriers, as each has its own terms and conditions. Visit the [Customer Service Portal](https://www.expedia.ca/helpcenter), where you'll find instructions on how to cancel online. ### How do I find cheap flights from IAD to OCN that have flexible change policies? > Select our "No change fees" filter to find flexible ticketing options for your flight from Dulles Intl. Airport to OCN. This allows you to snag a great price ahead of time and still have the freedom to reschedule without any extra fees. Just keep in mind that fare differences may still apply. ### How far is the flight from Dulles Intl. Airport to OCN? > You'll be in the air for a while, as the flight distance between Chantilly and Oceanside is 3,600 kilometres. Put together a playlist of your favourite tunes before leaving home to keep yourself entertained during your journey. ### Which airlines fly direct from Dulles Intl. Airport to OCN? > You won't find any airlines operating directly between Dulles Intl. Airport and OCN, so be prepared to make at least one stop on your journey. A layover can be a welcome way to break up a trip! ### Are Washington Dulles Intl. Airport (IAD) to OCN flight tickets cheaper when they're purchased at the last minute? > Flight prices are constantly going up and down, so there are no guarantees. While last-minute deals between Washington Dulles Intl. Airport (IAD) and OCN are of course possible, it's also a good idea to monitor prices well before you fly. In fact, some carriers publicize their prices up to a year prior to the departure date. 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