Title: Cheap Flights from St. Louis (STL) to Deer Lake (YDF) - Expedia.ca ![Adobe](https://images.trvl-media.com/place/3920/966c0d60-fe65-40a0-8335-312b4377e0fc.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 Deer Lake (YDF) - [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 Deer Lake, NL (YDF-Deer Lake Regional) - ![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:ydf,departure:19/10/2025TANYT&leg2=from:ydf,to:stl,departure:26/10/2025TANYT&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:ydf,departure:19/10/2025TANYT&leg2=from:ydf,to:stl,departure:26/10/2025TANYT&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:ydf,departure:19/10/2025TANYT&leg2=from:ydf,to:stl,departure:26/10/2025TANYT&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:ydf,departure:19/10/2025TANYT&leg2=from:ydf,to:stl,departure:26/10/2025TANYT&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:ydf,departure:19/10/2025TANYT&leg2=from:ydf,to:stl,departure:26/10/2025TANYT&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:ydf,departure:19/10/2025TANYT&leg2=from:ydf,to:stl,departure:26/10/2025TANYT&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:ydf,departure:19/10/2025TANYT&leg2=from:ydf,to:stl,departure:26/10/2025TANYT&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 Deer Lake (STL - YDF) route information | Origin airport | Lambert-St. Louis Intl. | | --- | --- | | Destination airport | Deer Lake Regional | | Distance | 2837 km | ## St. Louis to Deer Lake Flights **The easy way to book your flights from St. Louis to Deer Lake**  With Expedia, it’s simple to find and book flights to Deer Lake 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 Deer Lake Regional, 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 Deer Lake today, tomorrow, or this week.   **Save dollars with cheap flights from Lambert-St. Louis Intl., STL to Deer Lake Regional, YDF**  Sort your search results by price to find great deals on your flight from St. Louis to Deer Lake—you get all your cheapest options first. Grab yourself a bargain now—the lowest price on flights to Deer Lake 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 Deer Lake   - 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 Deer Lake 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 Deer Lake with Expedia today. ## Frequently asked questions ### How much is a flight from Lambert-St. Louis Intl. Airport (STL) to YDF? > Start packing your bags, because round-trip journeys between Lambert Field and YDF start from . That's based on airfares listed within the last 7 days on Expedia for flights departing within the next year. Prices can increase quickly, so book now to nab the best deal. 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 YDF? > This differs from airline to airline, as each has its own set of terms and conditions. Visit the [Customer Service Portal](https://www.expedia.ca/helpcenter), where there are simple instructions on how to cancel online. ### How do I find cheap flights from Lambert Field to Deer Lake Regional Airport that have flexible change policies? > Plenty of carriers will allow you to move your flight without a change fee. All you pay is the cost difference between the two flights. When searching for STL to Deer Lake Regional Airport (YDF) flights, you'll find a "No change fees" box for you to select. ### How many hours is the flight from Lambert-St. Louis Intl. Airport (STL) to Deer Lake Regional Airport (YDF)? > There are plenty of ways to make the 4 hours and 45 minutes between STL and Deer Lake Regional Airport (YDF) go by faster. If you want to be productive, sort through your photos or clear out all those backed-up emails. A snooze also helps pass the time! ### How far is the flight from Lambert Field to Deer Lake Regional Airport (YDF)? > You'll be up above the clouds for a while, as the flight distance between STL and YDF is 2,900 kilometres. Create a playlist of your favourite podcasts before leaving home to stay entertained during the flight. ### Which airlines fly direct from Lambert Field to Deer Lake Regional Airport (YDF)? > There are no direct flights, so you'll need to make at least one stop between STL and Deer Lake Regional Airport. Make the most of the layover time to stretch your legs and grab a coffee. ### Are STL to YDF flight tickets cheaper when they're purchased at the last minute? > Flight prices always go up and down, so it's no sure thing. While last-minute deals between STL and YDF are possible, it's also a good idea to keep a close eye on prices well before you fly. In fact, some airlines publicize their prices up to 12 months before the departure date. Expedia is constantly updating the biggest bargains around, so keep checking and be ready to secure your seat when the price dips. ## Explore a world of travel with Expedia - Lodging - Flights - Packages - Cars ### Lodging - [Deer Lake Hotels](https://www.expedia.ca/Deer-Lake-Hotels.d3920.Travel-Guide-Hotels) - [Hotels near Humber River Golf Club](https://www.expedia.ca/Humber-River-Golf-Club-Hotels.0-l553248621562271214-0.Travel-Guide-Filter-Hotels) - [Hotels near Newfoundland Insectarium](https://www.expedia.ca/Newfoundland-Insectarium-Hotels.0-l553248621532866456-0.Travel-Guide-Filter-Hotels) ### Flights - [Flights from Kitchener to Deer Lake](https://www.expedia.ca/lp/flights/10579/3920/kitchener-to-deer-lake) - [Flights from Kitchener to Deer Lake - Corner Brook](https://www.expedia.ca/lp/flights/10579/6057678/kitchener-to-deer-lake-corner-brook) - [Flights from Exeter to Deer Lake](https://www.expedia.ca/lp/flights/1185/3920/exeter-to-deer-lake) - [Flights from Honolulu to Deer Lake](https://www.expedia.ca/lp/flights/1488/3920/honolulu-to-deer-lake) - [Flights from Iquitos to Deer Lake](https://www.expedia.ca/lp/flights/1624/3920/iquitos-to-deer-lake) - [Flights from Qasigiannguit to Deer Lake - Corner Brook](https://www.expedia.ca/lp/flights/1676/6057678/qasigiannguit-to-deer-lake-corner-brook) - [Flights from Anchorage to Deer Lake - Corner Brook](https://www.expedia.ca/lp/flights/178230/6057678/anchorage-to-deer-lake-corner-brook) - [Flights from Athens to Deer Lake - Corner Brook](https://www.expedia.ca/lp/flights/178231/6057678/athens-to-deer-lake-corner-brook) - [Flights from Charlotte to Deer Lake - Corner Brook](https://www.expedia.ca/lp/flights/178247/6057678/charlotte-to-deer-lake-corner-brook) - [Flights from Chicago to Deer Lake - Corner Brook](https://www.expedia.ca/lp/flights/178248/6057678/chicago-to-deer-lake-corner-brook) - [Flights from Detroit to Deer Lake - Corner Brook](https://www.expedia.ca/lp/flights/178255/6057678/detroit-to-deer-lake-corner-brook) - [Flights from Los Angeles to Deer Lake - Corner Brook](https://www.expedia.ca/lp/flights/178280/6057678/los-angeles-to-deer-lake-corner-brook) - [Flights from Manila to Deer Lake - Corner Brook](https://www.expedia.ca/lp/flights/178282/6057678/manila-to-deer-lake-corner-brook) - [Flights from Memphis to Deer Lake - Corner Brook](https://www.expedia.ca/lp/flights/178284/6057678/memphis-to-deer-lake-corner-brook) - [Flights from Miami to Deer Lake - Corner Brook](https://www.expedia.ca/lp/flights/178286/6057678/miami-to-deer-lake-corner-brook) - [Flights from Ottawa to Deer Lake](https://www.expedia.ca/lp/flights/178296/3920/ottawa-to-deer-lake) - [Flights from Seattle to Deer Lake - Corner Brook](https://www.expedia.ca/lp/flights/178307/6057678/seattle-to-deer-lake-corner-brook) - [Flights from Stockholm to Deer Lake - Corner Brook](https://www.expedia.ca/lp/flights/178311/6057678/stockholm-to-deer-lake-corner-brook) - [Flights from Toronto to Deer Lake](https://www.expedia.ca/lp/flights/178314/3920/toronto-to-deer-lake) - [Flights from Venice to Deer Lake - Corner Brook](https://www.expedia.ca/lp/flights/179981/6057678/venice-to-deer-lake-corner-brook) - [Flights from Delhi to Deer Lake - Corner Brook](https://www.expedia.ca/lp/flights/180000/6057678/delhi-to-deer-lake-corner-brook) - [Flights from Edmonton to Deer Lake](https://www.expedia.ca/lp/flights/180002/3920/edmonton-to-deer-lake) - [Flights from Edmonton to Deer Lake - Corner Brook](https://www.expedia.ca/lp/flights/180002/6057678/edmonton-to-deer-lake-corner-brook) - [Flights from Québec City to Deer Lake - Corner Brook](https://www.expedia.ca/lp/flights/180017/6057678/quebec-city-to-deer-lake-corner-brook) - [Flights from Monterey to Deer Lake](https://www.expedia.ca/lp/flights/180045/3920/monterey-to-deer-lake) - [Flights from Sacramento to Deer Lake - Corner Brook](https://www.expedia.ca/lp/flights/180049/6057678/sacramento-to-deer-lake-corner-brook) - [Flights from St. John's to Deer Lake](https://www.expedia.ca/lp/flights/181832/3920/st-johns-to-deer-lake) - [Flights from Cinisi to Deer Lake](https://www.expedia.ca/lp/flights/182129/3920/cinisi-to-deer-lake) - [Flights from Kathmandu to Deer Lake](https://www.expedia.ca/lp/flights/1938/3920/kathmandu-to-deer-lake) - [Flights from Lagos to Deer Lake - Corner Brook](https://www.expedia.ca/lp/flights/2115/6057678/lagos-to-deer-lake-corner-brook) - [Flights from Oaxaca to Deer Lake - Corner Brook](https://www.expedia.ca/lp/flights/2631/6057678/oaxaca-to-deer-lake-corner-brook) - [Flights from Abuja to Deer Lake - Corner Brook](https://www.expedia.ca/lp/flights/275/6057678/abuja-to-deer-lake-corner-brook) - [Flights from Addis Ababa to Deer Lake](https://www.expedia.ca/lp/flights/289/3920/addis-ababa-to-deer-lake) - [Flights from Sault Ste. 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[Flights from Dryden (YHD) to Stephenville (YJT)](https://www.expedia.ca/lp/flights/yhd/yjt/dryden-to-stephenville) - [Flights from Kelowna (YLW) to Stephenville (YJT)](https://www.expedia.ca/lp/flights/ylw/yjt/kelowna-to-stephenville) - [Flights from Montreal (YMQ) to Stephenville (YJT)](https://www.expedia.ca/lp/flights/ymq/yjt/montreal-to-stephenville) - [Flights from Thunder Bay (YQT) to Stephenville (YJT)](https://www.expedia.ca/lp/flights/yqt/yjt/thunder-bay-to-stephenville) - [Flights from Mont-Joli (YYY) to Stephenville (YJT)](https://www.expedia.ca/lp/flights/yyy/yjt/mont-joli-to-stephenville) ### Packages - [Visit Deer Lake](https://www.expedia.ca/Deer-Lake.dx3920) - [Humber River Golf Club](https://www.expedia.ca/Humber-River-Golf-Club-Deer-Lake.d553248621562271214.Vacation-Attraction) - [Newfoundland Insectarium](https://www.expedia.ca/Newfoundland-Insectarium-Reidville.d553248621532866456.Vacation-Attraction) - [Roy Whelan Heritage Museum & Valley Crafts](https://www.expedia.ca/Roy-Whelan-Heritage-Museum-Valley-Crafts-Deer-Lake.d553248621566661433.Vacation-Attraction) ### Cars - [Car rental Deer Lake](https://www.expedia.ca/Car-Rentals-In-Deer-Lake.d3920.Car-Rental-Guide) \*Available to Expedia members.