Title: Cheap Flights from St. Louis (STL) 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://a.travel-assets.com/travel-assets-manager/fallback-images-brand/bex_flights_v2.jpg?impolicy=fcrop&w=1200&h=500&q=medium) # Cheap Flights from St. Louis (STL) 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 Lambert-St. Louis International Airport (STL) 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:stl,to:ocn,departure:22/10/2025TANYT&leg2=from:ocn,to:stl,departure:29/10/2025TANYT&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:stl,to:ocn,departure:22/10/2025TANYT&leg2=from:ocn,to:stl,departure:29/10/2025TANYT&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:stl,to:ocn,departure:22/10/2025TANYT&leg2=from:ocn,to:stl,departure:29/10/2025TANYT&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:stl,to:ocn,departure:22/10/2025TANYT&leg2=from:ocn,to:stl,departure:29/10/2025TANYT&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:stl,to:ocn,departure:22/10/2025TANYT&leg2=from:ocn,to:stl,departure:29/10/2025TANYT&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:stl,to:ocn,departure:22/10/2025TANYT&leg2=from:ocn,to:stl,departure:29/10/2025TANYT&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:stl,to:ocn,departure:22/10/2025TANYT&leg2=from:ocn,to:stl,departure:29/10/2025TANYT&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 St. Louis to Oceanside (STL - OCN) route information | Origin airport | Lambert-St. Louis Intl. | | --- | --- | | Destination airport | Oceanside | | Distance | 2480 km | ## St. Louis to Oceanside Flights **The easy way to book your flights from St. Louis to Oceanside**  With Expedia, it’s simple to find and book flights to Oceanside from St. Louis 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 St. Louis to Oceanside today, tomorrow, or this week.   **Save dollars with cheap flights from Lambert-St. Louis Intl., STL to Oceanside, OCN**  Sort your search results by price to find great deals on your flight from St. Louis to Oceanside—you get all your cheapest options first. Grab yourself a bargain now—the lowest price on flights to Oceanside from St. Louis 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 St. Louis**  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 STL to OCN? > Round-trip flights between Lambert Field and OCN start from . This is based on fares advertised within the last 7 days on Expedia for flights departing within the next year — book now so you don't miss 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 Lambert Field to OCN? > We get that your situation can change unexpectedly, so we've made it as simple as possible for you to cancel your trip online. Just visit the [Customer Service Portal](https://www.expedia.ca/helpcenter) and follow the instructions. ### How do I find cheap flights from Lambert Field to OCN that have flexible change policies? > Flights from Lambert-St. Louis Intl. Airport (STL) to OCN offering flexible change policies are available with many carriers. Simply use our "No change fees" filter when searching. You'll only need to pay the cost difference between the two flights, without any extra fees to worry about. ### How far is the flight from Lambert Field to OCN? > The flight distance between STL and OCN is 2,500 kilometres. Bring along a drink, a few snacks and a few good podcasts. Keep yourself entertained and time will zip by. ### Which airlines fly direct from Lambert Field to OCN? > There are no direct flights, so you'll have to make at least one stop between Lambert Field and OCN. Take advantage of the layover time to stretch your legs and take a break. ### Are Lambert-St. Louis Intl. Airport (STL) to OCN flight tickets cheaper when they're purchased at the last minute? > Booking your trip from Lambert Field to OCN at the last minute could save you some serious cash. However, it could end up costing a great deal more! If you'd rather avoid the risk, book well ahead of your departure date. In fact, Expedia has some of the biggest bargains up to a year in advance. 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