$775 Find Cheap Flights from Greensboro 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 Greensboro to Portugal departing on 9/30. 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, 0 bags

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Flight Deals

Book Cheap Greensboro 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 Greensboro 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 Greensboro to Portugal

Wed, Sep 30 - Tue, Oct 13
United Airlines Logo
6:00 am - 8:20 am
GSO
-
LIS
21h 20m
1 stop
United Airlines Logo
5:05 am - 11:59 pm
LIS
-
GSO
23h 54m
2 stops
$775United Airlines
Wed, Sep 30 - Wed, Oct 7
United Airlines Logo
6:00 am - 8:20 am
GSO
-
LIS
21h 20m
2 stops
United Airlines Logo
5:05 am - 11:59 pm
LIS
-
GSO
23h 54m
2 stops
$779United Airlines
Wed, Sep 30 - Fri, Oct 9
United Airlines Logo
6:00 am - 8:20 am
GSO
-
LIS
21h 20m
1 stop
United Airlines Logo
10:25 am - 11:59 pm
LIS
-
GSO
18h 34m
1 stop
$786United Airlines
Wed, Sep 30 - Fri, Oct 9
United Airlines Logo
6:00 am - 8:20 am
GSO
-
LIS
21h 20m
2 stops
United Airlines Logo
10:25 am - 11:59 pm
LIS
-
GSO
18h 34m
1 stop
$791United Airlines
Wed, Sep 30 - Tue, Oct 13
Air Canada Logo
6:00 am - 11:05 am
GSO
-
LIS
24h 05m
2 stops
Air Canada Logo
11:25 am - 2:14 pm
LIS
-
GSO
31h 49m
2 stops
$808Air Canada
Wed, Sep 30 - Sat, Oct 10
United Airlines Logo
6:00 am - 8:20 am
GSO
-
LIS
21h 20m
1 stop
United Airlines Logo
5:05 am - 11:59 pm
LIS
-
GSO
23h 54m
2 stops
$835United Airlines
Fri, Oct 2 - Tue, Oct 13
United Airlines Logo
6:00 am - 8:20 am
GSO
-
LIS
21h 20m
2 stops
United Airlines Logo
5:05 am - 11:59 pm
LIS
-
GSO
23h 54m
2 stops
$839United Airlines
Thu, Oct 1 - Tue, Oct 13
United Airlines Logo
7:00 pm - 8:20 am
GSO
-
LIS
32h 20m
1 stop
United Airlines Logo
5:05 am - 11:59 pm
LIS
-
GSO
23h 54m
2 stops
$841United Airlines
Wed, Sep 30 - Thu, Oct 8
Delta Logo
6:55 pm - 2:55 pm
GSO
-
LIS
15h 00m
2 stops
Delta Logo
5:00 am - 9:38 pm
LIS
-
GSO
21h 38m
2 stops
$843Delta
Sat, Oct 3 - Tue, Oct 13
Delta Logo
8:00 am - 8:00 am
GSO
-
LIS
19h 00m
1 stop
Delta Logo
10:00 am - 1:40 pm
LIS
-
GSO
32h 40m
1 stop
$846Delta
Booking Insights

KAYAK's insights & trends for Greensboro to Portugal flights

Get data-powered insights and trends into flights from Greensboro 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 Greensboro to Portugal?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Greensboro 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 Greensboro to Portugal is December, when tickets cost $0 (return) on average. On the other hand, the most expensive months are June and September, when the average cost of round-trip tickets is $956 and $949 respectively.

Good to know

Low seasonFebruary
Cheapest flight$775
Best time to beat the crowds with an average 45% drop in price.
Most popular time to fly with an average 29% increase in price.
Flight from Greensboro to Lisbon

FAQs - booking Portugal flights

  • How does KAYAK find such low prices on flights from Greensboro 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 Greensboro to Portugal.

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight from Greensboro 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 Greensboro 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 Greensboro 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 Greensboro 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 Greensboro to Portugal up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Reviews of the top 3 airlines serving from Greensboro to Portugal

 
Need help choosing which airline to fly with from Greensboro 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 9899 reviews
7.1Entertainment
7.7Boarding
8.1Crew
7.3Comfort
6.6Food
Airline reviews

I didn’t have a seat assignment and my seat was very dirty on the flight from Frankfurt to Budapest.

6.0 GoodKinga, May 2026
RDU - FRA
Read more United Airlines reviews

I didn’t have a seat assignment and my seat was very dirty on the flight from Frankfurt to Budapest.

The flight was significantly delayed. The inbound flight from EWR was delayed departing because of mechanical problems. My original departure from CLT was 5:28 pm but due to the delay of the inbound flight, after arrival, deplaning, cleaning, boarding, we did not push back from the gate until 9:00 pm. Once in the air, the flight was smooth and what was originally supposed to be an arrival in ORD at 7:30 pm local time turned out to be 9:35 pm.

My bags were misplaced!!! Im in a foreign country with no bags

Bad food, bad service, cold cabin with no additional blankets when asked for (they told me they don’t provide additional blankets). I’m a frequent traveler and this is one of the worst companies I traveled with (by the way I thought that I booked my ticket with Lufthansa but I didn’t see that the flights were handled by United).

Hotter than Hades in August. Why, why do crews think that in the winter when we are already dressed for cold weather we need a cabin that is 82 degrees. Even the vents were blowing hot air.

Flight is clean and ontime. Crew is friendly. Snack can be better and the internet connection is poor

United airlines, mediocre at best. No issues , nothing great . Worked for me

Turbulent taking off & landing to Dulles from Raleigh. Flight from Dulles to Tokyo very good!!

Food is terrible. Flight is outdated and seats are not comfy.

Our flight from Denver to Honolulu was delayed by close to 4 hrs. The only concession that was offered was a $15 food voucher to be used at the airport. They texted the vouchers after we boarded so there was now way to use them.the food they did serve was cold. I can’t recommend this airline.

Check in for 5am flight at RDU was hampered by American check in counters being seriously understaffed , was told even supervisor called out. Took so long in line for special services check in that we missed our 5am departure even after arriving at 3:30am. Had to be rescheduled to later flight from Charlotte to St Thomas.

Awfully rude American worker at door when we started boarding flight. Then, walk into a blazing hot airplane with no air conditioning until twenty minutes into the flight. Free entertainment was non existent! My husband, along with the fellow passenger in our row, and I could not get entertainment to work, no WIFI! Really?? Been flying American a long time. Was very disappointed.

Two hours delay, probably one hour because they didn’t bring catering and they had to bring water in board. There a change of aircraft. But delays galore at CLT so it must be a CLT and/or AA operation issue. The 1 hr additional delays because nobody could bring 2 packs of water sooner is probably the best example of this airline operates

Our flight was repeatedly delayed for maintenance problems: scheduled for 9.30am, eventually delayed to 7pm! Very very inconvenient! AA should have provided a substitute plane much earlier.. On the other hand, Customer Service crew in Charlotte helped us to reach NY (LGA) by late afternoon. Thank you Patricia!! The actual flight was quick and very comfortable. As always a. excellent, professional crew. [no food on a a short hop).

The flight was peaceful, just s slight turbulence, pilots and crews were all nice and made a great job! Arrived safely in the Philippines. Thank you ya’ll!

Flight left on time. Captain provided relevant announcements. We had to wait 45 minutes to desembark due to the ramp closed because of lightening.

STOP MAKING THE SEATING SO CRAMPED. WE NEED A PASSENGER BILL OF RIGHTS!

Awful. They won’t help me with anything. I booked on American but they abdicated to Iberia. The ticket was overpriced. Everything negative

Delay of 30 minutes, but most of time recovered in flight. Lots of overhead storage, so roller bags could be kept on board and not checked.

Loved the leg room but hate I had to pay to get it!!

My luggage was lost at the airport but American Airlines contacted me and got it to me the next day.

All the above categories was great. Seats entirely too cramped.

I like American Airlines and their safety record. They provide quality service and a feel safe enough to prefer American Airlines over other carriers even if I have to pay a little more.

We paid for Business Class seats, but system did not have us and they were not available.

Worth every penny to upgrade to BC. Treated and felt more like First Class

I don't know about the others but the flight attendant that took care of us had the absolute wrong approach "how do we dare asking for water or anything else for that matter"

The crew is very friendly and helpful. The food is good for airplane food. The flight is long and hard to sleep. The leg space is great. The plane arrived in plenty of time.

A good flight back to Tampa and thankfully although we had a 90 minute delay because of thunder storms from Charlotte to bottom iof Florida, it was a prudent to avoid these for a comfortable flight as opposed to being tossed around with turbulence.

Flight was good but seat in 12D was not comfortable, better on the Airbus 321 from Tampa to Charlotte. No breakfast was served before landing in zLonfon only a coffee and orange juice.

Boarding crew is unfriendly as i was asked to handover carryon luggage too upto final destination Bangalore I was not prepared for that and i had to travel without my diabetic and hypertension medicines

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

Information on your arrival and departure airports