$252 Cheap Flights to Sines

Bundle Your Flight + Hotel & Save!

Featured airlines

Featured Airlines: American Airlines, United Airlines, Delta, Spirit, JetBlue, Frontier, Air India, Hawaiian Airlines and Qatar Airways

    Plan, book, fly with confidence
  • trending down icon
    Be in the know
    Get alerts if flight prices drop or rise*
  • bex rewards loyalty icon
    Book smarter
    Save up to 30% on select hotels after you book a flight*
  • one key icon
    Earn twice
    Earn your airline miles on top of our OneKeyCash
    Learn about One Key

How much is the cheapest flight to Sines?

Prices were available within the past 7 days and start at $252 for one-way flights and $344 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

British Airways
Wed, Jan 8 - Fri, Jan 17
CMH
John Glenn Columbus Intl.
LIS
Humberto Delgado
$564 Roundtrip, found 7 hours ago
$564
Roundtrip
found 7 hours ago
Select British Airways flight, departing Wed, Jan 8 from John Glenn Columbus Intl. to Humberto Delgado, returning Fri, Jan 17, priced at $564 found 7 hours ago
Virgin Atlantic
Wed, Jan 8 - Fri, Jan 17
CMH
John Glenn Columbus Intl.
LIS
Humberto Delgado
$566 Roundtrip, found 7 hours ago
$566
Roundtrip
found 7 hours ago
Select Virgin Atlantic flight, departing Wed, Jan 8 from John Glenn Columbus Intl. to Humberto Delgado, returning Fri, Jan 17, priced at $566 found 7 hours ago
American Airlines
Tue, Feb 4 - Tue, Feb 11
CMH
John Glenn Columbus Intl.
LIS
Humberto Delgado
$566 Roundtrip, found 2 days ago
$566
Roundtrip
found 2 days ago
Select American Airlines flight, departing Tue, Feb 4 from John Glenn Columbus Intl. to Humberto Delgado, returning Tue, Feb 11, priced at $566 found 2 days ago
Iberia
Wed, Jan 8 - Fri, Jan 17
CMH
John Glenn Columbus Intl.
LIS
Humberto Delgado
$579 Roundtrip, found 7 hours ago
$579
Roundtrip
found 7 hours ago
Select Iberia flight, departing Wed, Jan 8 from John Glenn Columbus Intl. to Humberto Delgado, returning Fri, Jan 17, priced at $579 found 7 hours ago
Air Canada
Tue, Dec 31 - Thu, Jan 9
CMH
John Glenn Columbus Intl.
LIS
Humberto Delgado
$595 Roundtrip, found 6 days ago
$595
Roundtrip
found 6 days ago
Select Air Canada flight, departing Tue, Dec 31 from John Glenn Columbus Intl. to Humberto Delgado, returning Thu, Jan 9, priced at $595 found 6 days ago

Find Your Flights to Sines SIE

Cheap flights to Sines (SIE)

Get started finding a cheap flight to Sines on Expedia by either choosing a deal on this page or entering into the search bar your travel dates, origin airport, and whether you want 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 Sines.

Roundtrip prices range from $344 - $595, and one-ways to Sines start as low as $252.

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 Sines (SIE)

You have several options for which airline you choose to travel with to Sines. There are 10 airlines flying into SIE: Virgin Atlantic, United, Lufthansa, Air Canada, KLM, British Airways, American Airlines, Iberia. 

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 programs 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 in 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 the optimal times. Airfare to Sines (SIE) varies throughout the year based on seasonal demand. You’ll see the lowest rates for roundtrips to SIE in January and in January 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. Some plane tickets are available with no change fees, which you can filter for during your search.

Frequently asked questions

Where can I learn more about changing or canceling my flight to Sines?
Most flights are free to cancel within 24 hours of making the reservation. However, some flights are non-refundable, and you may receive a flight credit from the airline to use for a future booking. For more information, please visit our Customer Service Portal.
How do I find cheap flights to Sines that have flexible change policies?
By using our smart “No change fee” filter, that’s how. Simply type in your origin, destination and dates, click the “Search” button, then mark the checkbox underneath the “Flexible change policies” subheading (it’s on the left of your screen). Expedia makes it easy to find flexible, low-cost airfares to Sines.
What is the name of Sines' airport?
Humberto Delgado Airport (LIS) is the sole airport near Sines.
What airport is best to fly into Sines?
Lisbon/Portela Airport is the main airport in Sines. Before you head there, it’s a good idea to find out a thing or two about it. The terminal is located 60 mi from the downtown area.
How many airlines fly to Sines?
Sines is serviced by 53 airlines from 142 airports around the world.
How many nonstop flights are there to Sines?
With 2,447 nonstop flights every week, you’ll be touching down in Sines before you have time to say, “Are we there yet?”
Where are the most popular flights to Sines departing from?
Flights to Sines from London, Paris and Madrid airports are the most sought after.
How long is the flight to Sines Airport?
If you’re going to Sines from London, you’re looking at a flight duration of 2 hours and 46 minutes. Those jetting off from Madrid can expect to be airborne for 1 hour and 20 minutes. From Orly it’s roughly 2 hours and 35 minutes away.
How to book the cheapest flight to Sines?
If you want to have some extra spending money on your Sines vacation, listen up! As every experienced jet-setter will tell you, avoid booking at the last minute. Fares are often highest close to the departure date. Another excellent way to score the best deal is to research all options. If where you’re headed has more than one airport, be sure to look into the cost of flying into a smaller terminal. Lastly, another easy way to save a few dollars is be ready to book fast. If you spot a good deal, don’t think twice — snap it up while the opportunity’s there.
How to survive the flight to Sines?
Depending on where you’re coming from, your flight to Sines could be no sweat at all or it could drag on forever. We’ve compiled some useful hints that will help you start your next great escape on a positive note.What to pack in your hand luggage:

  • First and foremost, pack your passport, travel documents, credit cards and medications. Next, you’ll want some extra in-flight entertainment to while away the time. A juicy novel and a tablet crammed with your favorite shows are good options. If you intend to take a short nap, a neck pillow and some earplugs will also be useful. Finally, leave space for a few toiletry items so you’ll hop off the plane feeling fresh and raring to go.

Do not pack the following items in your hand luggage:

  • Check carefully that you don’t have a Swiss Army knife lurking in the bottom of your hand luggage. Other banned items include explosive or flammable goods, such as fuel and matches, and liquids and gels in containers larger than 3.4 ounces (100 milliliters).

What to wear on a flight:

  • The best way to ensure a comfortable flight is often as simple as the clothes you wear. Prepare yourself for varying temperatures by layering up. This will keep you nice and warm if the cabin starts to cool down. Shoes like high heels and sandals are best left for other occasions. Instead, go for flat, closed-toed footwear like slip-ons. Your feet will appreciate it.
  • Most travelers are aware of deep vein thrombosis (DVT), a blood clot condition caused by long periods of sitting. There’s plenty you can do to lessen your risk. Wear a pair of compression socks, drink lots of water and remember to keep your legs and feet moving. Do a few laps of the cabin or perform exercises in your seat.

How to get through airport security fast when flying to Sines?
Being organized before your flight will help make your trip to Sines a breeze. We’ve rounded up some handy tips and tricks for a stress-free journey through security:

  • First things first. Your passport and travel documents will need to be shown to airport security. Have them close by so you don’t hold up the line.
  • Next up is the X-ray machine. Remove anything on you that is likely to set off the scanner’s alarm. This includes items like earphones or headphones, as well as bulky coats or jackets. They’ll all need to go on the X-ray conveyor belt.
  • Electronic devices like phones and laptops will also have to go through the machine for inspection. No need to worry though, you’ll be back online soon enough.
  • Remember to remove liquids and gels from your hand luggage. They usually need to be sent through the X-ray separately. Each product should be no larger than 3.4 ounces (100 milliliters) and everything must fit in a single quart-size (one liter), clear zip-lock bag.
  • The right choice of footwear can save you several precious minutes. Hiking boots are often required to be removed and X-rayed separately. Slip-on shoes are usually not.
  • Airlines will not allow any pocket knives or other sharp items in your carry-on luggage. If you must bring these kinds of items, pack them in your checked luggage.

Flights to Sines information
Destination airport
Humberto Delgado
Destination airport IATA code
LIS
Destination city name
Lisbon
Roundtrip price
$563

Trending flights to Sines

Prices were available within the past 7 days and start at $252 for one-way flights and $344 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Fly Play
Sun, Oct 20 - Mon, Nov 11
IAD
Washington Dulles Intl.
LIS
Humberto Delgado
$344 Roundtrip, found 1 day ago
$344
Roundtrip
found 1 day ago
Select Fly Play flight, departing Sun, Oct 20 from Washington Dulles Intl. to Humberto Delgado, returning Mon, Nov 11, priced at $344 found 1 day ago
*Available to One Key members.