$569 Find Cheap Flights from Burlington to Portugal

This is the cheapest round-trip flight price found by a KAYAK user in the last 72 hours by searching for a flight from Burlington to Portugal departing on 10/21. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy

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Cheap Flights from Burlington to Portugal

Cheapest round-trip prices found by our users on KAYAK in the last 72 hours
Lisbon
Lisbon1 stop$569
Porto
Porto2 stops$846
Lisbon
Lisbon1 stop$569
Porto
Porto2 stops$846

Book Cheap Burlington to Portugal Plane Tickets

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Burlington to Portugal that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Burlington to Portugal

mar., oct. 21 - mar., nov. 11
United Airlines Logo
5:45 am - 10:30 amBTV-LIS
23h 45m1 stop
United Airlines Logo
11:20 am - 9:54 amLIS-BTV
27h 34m2 stops
$569United Airlines
Find Deal
jue., oct. 23 - mar., nov. 11
United Airlines Logo
7:41 pm - 10:30 amBTV-LIS
9h 49m1 stop
United Airlines Logo
11:20 am - 9:54 amLIS-BTV
27h 34m2 stops
$619United Airlines
Find Deal
sáb., oct. 18 - mar., nov. 11
Air Canada Logo
6:31 pm - 9:20 amBTV-LIS
33h 49m2 stops
Air Canada Logo
11:20 am - 2:28 pmLIS-BTV
32h 08m2 stops
$620Air Canada
Find Deal
vie., oct. 17 - mar., nov. 11
Air Canada Logo
6:31 pm - 11:05 amBTV-LIS
35h 34m2 stops
Air Canada Logo
11:20 am - 2:28 pmLIS-BTV
32h 08m2 stops
$626Air Canada
Find Deal
mié., oct. 22 - mar., nov. 11
Delta Logo
3:57 pm - 8:00 amBTV-LIS
11h 03m1 stop
Delta Logo
10:00 am - 11:57 pmLIS-BTV
18h 57m1 stop
$628Delta
Find Deal
vie., oct. 24 - vie., oct. 31
Scandinavian Airlines Logo
3:57 pm - 9:55 amBTV-LIS
36h 58m2 stops
Scandinavian Airlines Logo
4:55 pm - 12:05 amLIS-BTV
35h 10m2 stops
$643Scandinavian Airlines
Find Deal
lun., oct. 20 - vie., nov. 14
United Airlines Logo
5:45 am - 11:05 amBTV-LIS
24h 20m2 stops
United Airlines Logo
6:10 am - 2:28 pmLIS-BTV
37h 18m2 stops
$646United Airlines
Find Deal
sáb., oct. 18 - jue., nov. 13
Delta Logo
3:57 pm - 5:55 pmBTV-LIS
20h 58m2 stops
Delta Logo
10:40 am - 11:22 pmLIS-BTV
17h 42m2 stops
$647Delta
Find Deal
mar., oct. 21 - vie., nov. 14
 Logo
3:57 pm - 2:50 pmBTV-LIS
17h 53m2 stops
 Logo
5:00 am - 11:03 pmLIS-BTV
23h 03m2 stops
lun., oct. 20 - sáb., nov. 15
 Logo
3:57 pm - 2:50 pmBTV-LIS
17h 53m2 stops
 Logo
11:25 am - 11:57 pmLIS-BTV
17h 32m2 stops
Booking Insights

KAYAK's insights & trends for Burlington to Portugal flights

Get data-powered insights and trends into flights from Burlington to Portugal to help you find the cheapest flights, the best time to fly and much more.

What is the cheapest month to fly from Burlington to Portugal?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Burlington to Portugal, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from Burlington to Portugal is November, when tickets cost $657 (return) on average. On the other hand, the most expensive months are September and May, when the average cost of round-trip tickets is $1,418 and $1,356 respectively.

Good to know

Low seasonJune
Cheapest flight$569
Best time to beat the crowds but there is an average 14% increase in price.
Most popular time to fly and prices are also 10% lower on average.
Flight from Burlington to Lisbon

FAQs - booking Portugal flights

  • How does KAYAK find such low prices on flights from Burlington to Portugal?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Burlington to Portugal.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Burlington to Portugal?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight from Burlington to Portugal is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Burlington to Portugal?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly from Burlington to Portugal with an airline and back with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Burlington to Portugal?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying from Burlington to Portugal up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

  • What is the cheapest time of day to fly to Portugal?

    The cheapest time of day to fly to Portugal is generally in the evening, when round-trip flights cost $885 on average. Morning departures are around 34% more expensive than evening flights, on average. The most expensive time of day to fly to Portugal is generally in the afternoon, which is peak travel time and where the average cost of a ticket is $1,273.

Reviews of the top airline flying from Burlington to Portugal

 
Need help choosing which airline to fly with from Burlington to Portugal? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
7.4
United AirlinesOverall score based on 8915 reviews
7.3Comfort
7.1Entertainment
8.1Crew
6.6Food
7.7Boarding
Airline reviews

Plane was crowded and even when we hit altitude, the plane was hot, not enough air flow.

8.0 ExcellentBill, Aug 2025IAH - LAX
Read more United Airlines reviews

Plane was crowded and even when we hit altitude, the plane was hot, not enough air flow.

Flight attendant in first class gave poor service (like he didn't want to be there) and food was awful. We sat waiting for gate upon arrival over 45 mins.

The pilots were late and it made us 1 hour late. The meat was tough and bok choy was also tough.

Flight was delayed 3 hours. No food and drink vouchers was provided. They offered a mini pretzel bag and water .

Stuck on tarmac for two hours plus a 5.5 hour flight. Rude flight attendant. And no meals, not even for purchase!

The service was good, the food could have been better.

Staff was rude. Didn’t give water for 2 hours. Worst service

Excellent flight. Boarding was efficient and departure was on time. Smooth flight with on time arrival. Deplaning was also efficient.

This flight was perfect. No complaints and only the highest regard for the crew and ground staff and how they executed perfectly. I fly a lot with United and would request predictability and transparency in their operations instead of last minute changes.

This is for UA2274 from Houston to Sacramento. The flight was delayed arriving due to mechanical issues so we left about 3 hours later than scheduled. When boarding the plane the temperature inside was excessive - likely close to 100. Pilot apologized and said it was going to improve at altitude, which it did. But before that I honestly thought there might have been more delays removing passengers made ill from the heat. We were delayed leaving due to another mechanical issue. There was not water on the plane due to a panel that was not secured. They did that quickly, but the combination of mechanical issues was rather disturbing and did not reflect well on United.

Everything you need to know for your flight from Burlington to Portugal

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