--- title: "Cheap Flights to Dem from CA $434 - Expedia.ca" description: "Looking for cheap flights to Dem? Few airlines offer no change fee on selected flights to your favourite destinations. Earn double rewards with airline miles + Expedia points. Get your last minute tickets now!" canonical: "https://www.expedia.ca/Cheap-Flights-To-Dem.d3000021500.Travel-Guide-Flights" language: en-CA market: CA currency: CAD prices_as_of: 2026-11-13T09:10:29Z --- # Cheap Flights to Dem from CA $434 [View CA $434 flight on Fri, Dec 4, 2026](https://www.expedia.ca/Flights-Search?leg1=from:YYZ,to:OPO,departure:04/12/2026TANYT&trip=oneway&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&flp=mdl:flights-flex-module,price:433.62&airProductToken=AQoxCi8I1KYBEgM3NjQYmM4BIO5zKKr3ngMwyfqeAzhWQABYAWoDQkdUcghWMEJHVDFDTxIKCAEQARgBKgJUUxgBIgQIARABKAIoAygEMA0) ## Popular airlines [TAP Portugal](https://www.expedia.ca/Flights-Search?leg1=from:CMH,to:Dem,%20Caminha,%20Viana%20do%20Castelo%20District,%20Portugal,departure:27/11/2026TANYT&leg2=from:Dem,%20Caminha,%20Viana%20do%20Castelo%20District,%20Portugal,to:CMH,departure:04/12/2026TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&filters=[{"preferredAirlineFilterValue":{"carrierCode":"TP"}}]) [Lufthansa](https://www.expedia.ca/Flights-Search?leg1=from:CMH,to:Dem,%20Caminha,%20Viana%20do%20Castelo%20District,%20Portugal,departure:27/11/2026TANYT&leg2=from:Dem,%20Caminha,%20Viana%20do%20Castelo%20District,%20Portugal,to:CMH,departure:04/12/2026TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&filters=[{"preferredAirlineFilterValue":{"carrierCode":"LH"}}]) [Air France](https://www.expedia.ca/Flights-Search?leg1=from:CMH,to:Dem,%20Caminha,%20Viana%20do%20Castelo%20District,%20Portugal,departure:27/11/2026TANYT&leg2=from:Dem,%20Caminha,%20Viana%20do%20Castelo%20District,%20Portugal,to:CMH,departure:04/12/2026TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&filters=[{"preferredAirlineFilterValue":{"carrierCode":"AF"}}]) [Iberia](https://www.expedia.ca/Flights-Search?leg1=from:CMH,to:Dem,%20Caminha,%20Viana%20do%20Castelo%20District,%20Portugal,departure:27/11/2026TANYT&leg2=from:Dem,%20Caminha,%20Viana%20do%20Castelo%20District,%20Portugal,to:CMH,departure:04/12/2026TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&filters=[{"preferredAirlineFilterValue":{"carrierCode":"IB"}}]) [KLM](https://www.expedia.ca/Flights-Search?leg1=from:CMH,to:Dem,%20Caminha,%20Viana%20do%20Castelo%20District,%20Portugal,departure:27/11/2026TANYT&leg2=from:Dem,%20Caminha,%20Viana%20do%20Castelo%20District,%20Portugal,to:CMH,departure:04/12/2026TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&filters=[{"preferredAirlineFilterValue":{"carrierCode":"KL"}}]) [Swiss International Air Lines](https://www.expedia.ca/Flights-Search?leg1=from:CMH,to:Dem,%20Caminha,%20Viana%20do%20Castelo%20District,%20Portugal,departure:27/11/2026TANYT&leg2=from:Dem,%20Caminha,%20Viana%20do%20Castelo%20District,%20Portugal,to:CMH,departure:04/12/2026TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&filters=[{"preferredAirlineFilterValue":{"carrierCode":"LX"}}]) [Air Europa](https://www.expedia.ca/Flights-Search?leg1=from:CMH,to:Dem,%20Caminha,%20Viana%20do%20Castelo%20District,%20Portugal,departure:27/11/2026TANYT&leg2=from:Dem,%20Caminha,%20Viana%20do%20Castelo%20District,%20Portugal,to:CMH,departure:04/12/2026TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&filters=[{"preferredAirlineFilterValue":{"carrierCode":"UX"}}]) ### Be in the know Get alerts if flight prices drop or rise\* ### Book smarter Save up to 30% on select hotels after you book a flight\* ### Earn twice Earn your airline miles on top of our rewards [Sign in](https://www.expedia.ca/login) ## Find the cheapest month to fly from Columbus (CMH) to Porto (OPO) ### February is typically the cheapest month to fly From CA $1,022 - CA $1,121 per traveller. View flights in February Insights are based on prices from searches for economy trips of 10 days or less on our sites in the last 12 months. Insights are informative only and current prices may differ. ## Book with confidence ### Find Your Flights to Dem OPO **Cheap flights to Dem (** **OPO)** Get started finding a cheap flight to Dem on Expedia by either choosing a deal on this page or using the search bar to enter your travel dates, origin airport, and whether you want a roundtrip or one-way airfare. You can filter for flexibility, number of stops, airline, and departure/arrival times to find the best flight for you. We recommend using the ‘Flexible Dates’ calendar at the top of the page to see the price of plane tickets on the surrounding dates. This allows you to pick the cheapest days to fly if your trip allows flexibility and score cheap flight deals to Dem. Roundtrip prices range from CA $728 - CA $728, and one-ways Dem start as low as CA $434. Be aware that choosing a non-stop flight can sometimes be more expensive while saving you time. And routes with connections may be available at a cheaper rate. **Airlines that fly to Dem (** **OPO)** You have several options for which airline you choose to travel with to Dem. There are 2 airlines flying into OPO: Air Transat, TAP Portugal. Cheap plane tickets may be available from different airlines at different times and with unique terms. It’s best to understand the details of each airline’s offer before judging its value. For example, if you plan to check a bag or bring a carry-on, check whether the cheap airfare deal includes a baggage allowance. If not, verify whether the baggage fee is higher than the difference of other airline plane ticket deals offering free checked/carry-on baggage in exchange for a slightly higher airfare. Additionally, your preferred frequent flyer membership programmes may influence your choice of cheap airline. Expedia allows you to enter your membership numbers during checkout to earn points from your airline and Expedia Rewards—all while getting a great deal and planning all your travel on one online platform. #### Find the best deals At Expedia, we source many flight deals from multiple providers, so you can easily find the best deals that are right for you. A great strategy for getting the best deals can be to make sure you book and travel at optimal times. Airfare to Dem (OPO) varies throughout the year based on seasonal demand. You’ll see the lowest rates for roundtrips to OPO in April and in December for one-ways. #### Cancellation & flexibility To change or cancel eligible flights, go to ‘My Trips’ and navigate to your itinerary. If you booked within the last 24 hours, you might be able to cancel your flight for free. Learn more about flight changes or cancellations from our [customer service portal](https://www.expedia.ca/service/). Some plane tickets are available with no change fees, which you can filter for during your search. ## Frequently Asked Questions ### What is the name of Dem's airport? Organize a flight to Dem with Expedia and you'll be hitting the runway at Dr. Francisco de Sa Carneiro Airport (OPO). ### What airport is best to fly into Dem? People from all around the world go through Dr. Francisco de Sa Carneiro Airport (OPO) every day. Step off the plane, collect your luggage and you'll find yourself 64 kilometres from the downtown Dem streets. ### How many airlines fly to Dem? There are 32 air carriers that fly to Dem from 82 worldwide airports. ### Which airlines fly to Dem? Air Europa and Iberia fly frequently into Dem. Catching an Air Europa flight from Madrid is one of the most popular ways to get there. ### How many nonstop flights are there to Dem? Flying to a new place is much more fun when there aren't any annoying stopovers. If you're off to Dem, the awesome news is that there are roughly 757 direct flights operating every week. ### Where are the most popular flights to Dem departing from? Travellers frequently depart from Madrid, Paris and Lisbon District airports when going to Dem. ### How long is the flight to Dem Airport? Which airport you depart from determines how much of the in-flight entertainment you'll get to see. From Madrid to Dem, the average flight time is 1 hour and 17 minutes. From Paris it's roughly 2 hours and 15 minutes, and from Lisbon District it's 59 minutes. ### How to book the cheapest flight to Dem? If you want to save some cash on your trip to Dem, listen up! As any seasoned jet-setter knows, don't leave booking until the last minute. Fares are usually highest just prior to the departure date. Don't stop there, however. Do some research and find out if there are a few airports at your destination. Ticket prices often differ depending on the airport you pick. Remember to compare fares across airlines too. And finally, don't forget that it's first in, best dressed. Familiarize yourself with airfare costs and have your credit card ready to secure your seat as soon as you see a great bargain. The sweetest deals never last long. ### Do you have any tips for my flight to Dem? Wherever you're jetting in from, flying can be a pleasurable experience if you're well prepared. We've made a list of handy hints that will get your Dem vacation started on the right foot. What to pack in your hand luggage: - Flying can be a stress-free experience if you bring the right gear. Firstly, you'll want some basic toiletries, such as a toothbrush and lip balm, a fresh set of clothes and a good book. Secondly, make room in your bag for your electronic gadgets, chargers, your important medications and perhaps a cozy neck pillow as well. Last, but definitely not least, don't forget to bring your passport, travel papers and some money. Do not pack the following items in your hand luggage: - Make sure you don't have sharp or pointed objects lurking in one of the zippers of your carry-on luggage. Other restricted items include flammable or explosive goods, such as fuel and fireworks, and liquids and gels in containers with a capacity of more than 3.4 ounces (100 millilitres). What to wear on a flight: - The aisles of an airplane are no place for a fashion parade. Wear layers and choose shoes that are flat, enclosed and easy to take on and off. - Most travellers have heard about deep vein thrombosis (DVT), a blood clot condition caused by prolonged periods of sitting. To minimize your risk on board, drink plenty of water, consider wearing compression socks and keep your legs and feet moving. ### How to get through airport security fast when flying to Dem? As seasoned travellers know, the secret is to be prepared before you get to the security gate. That way, you'll be boarding that plane to Dem in no time flat. Follow these helpful tips and get your vacation off to a great start: - First things first. Your boarding pass and travel ID will need to be shown to airport security. Keep them someplace accessible to avoid fumbling around for them. - Time to strip down. Well kind of. Your jacket, belt, keys and other items in your pocket, like your headphones, will need to go on a tray through the X-ray machine. Make the whole process faster by removing them before your turn. - All your electronic gadgets, including your phone and laptop, will also need to be separately scanned. - Travelling with a new hand cream? No problem. As long as the volume is no larger than 3.4 ounces (100 millilitres) and it's stored in a zip-lock bag, you can bring it with you on board. - There's a chance you'll be asked to take your shoes off to be X-rayed, so wearing lightweight sneakers is always a good idea. - Sharp items are prohibited in the cabin. They'll be seized at security, so pack them safely away in your checked baggage. ## Travel information | Destination city name | Porto | | ----------------------------- | -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- | | Destination airport | Porto Airport | | Destination airport IATA code | OPO | | Airlines serving | TAP Portugal, Lufthansa, Air France, Iberia, KLM, Swiss International Air Lines, Air Europa, Brussels Airlines, British Airways, Ryanair, SAS, easyJet, Turkish Airlines, Air Canada, Vueling Airlines, Luxair, American Airlines, Delta, United, LATAM Airlines Group, Finnair, LOT-Polish Airlines, Transavia France, Austrian Airlines, SATA International-Azores Airlines S.A., Eurowings, Ethiopian Airlines, Transavia, Volotea, Singapore Airlines, LC Peru, Azul, Royal Air Maroc, JetBlue Airways, Air Transat, WestJet | | Popular airline | TAP Portugal | ## Trending flights to Dem Prices were available within the past 7 days and start at CA $434 for one-way flights and CA $728 for roundtrip, for the period specified. Prices and availability are subject to change. All deals One way Roundtrip [Select TAP Portugal flight, departing Fri, Apr 30 from Montreal to Porto, returning Sun, Jun 6, priced at CA $728 Found 3 days ago](https://www.expedia.ca/Flights-Search?leg1=from:YUL,to:OPO,departure:30/04/2027TANYT&leg2=from:OPO,to:YUL,departure:06/06/2027TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&flp=mdl:flights-flex-module,price:727.61&airProductToken=AQprCjMI1KABEgMyNTQYmF0gi5IBKKXuqwMwuvGrAzhPQABYAWoHRElTQ0lOVHIIT0YwRFNJSDcKNAjUoAESBDE5MzQYi5IBIO5zKNb1qwMwjfarAzhPQAFYAWoHRElTQ0lOVHIIT0YwRFNJSDcKawo0CNSgARIEMTkyNxjucyCLkgEo2IavAzCUh68DOE9AAFgBagdESVNDSU5UcghPRjBEU0lINwozCNSgARIDMjUzGIuSASCYXSiViq8DMOaNrwM4T0ABWAFqB0RJU0NJTlRyCE9GMERTSUg3EgoIARABGAEqAlRQGAEiBAgBEAEoAigDKAQwDQ) Fri, Apr 30 - Sun, Jun 6 · YUL · OPO · Roundtrip \*Available to Expedia members. ## Other language versions ```yaml hreflang: x-default: https://www.expedia.com/Cheap-Flights-To-Dem.d3000021500.Travel-Guide-Flights en-US: https://www.expedia.com/Cheap-Flights-To-Dem.d3000021500.Travel-Guide-Flights de-DE: https://www.expedia.de/Billigflug-Dem.d3000021500.Reise-Angebote-Flug th-TH: https://www.expedia.co.th/Cheap-Flights-To-Dem.d3000021500.Travel-Guide-Flights de-AT: https://www.expedia.at/Billigflug-Dem.d3000021500.Reise-Angebote-Flug es: https://www.expedia.com/es/Vuelos-Baratos-Dem.d3000021500.Guia-de-vuelos fr-FR: https://www.expedia.fr/Vols-Pas-Cher-Dem.d3000021500.Voyage-Guide-Vols it-IT: https://www.expedia.it/Voli-Per-Dem.d3000021500.Guida-Voli-aerei fr-BE: https://www.expedia.be/fr/Vols-Dem.d3000021500.Guide-De-Vol en-IN: https://www.expedia.co.in/Cheap-Flights-To-Dem.d3000021500.Travel-Guide-Flights ```