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$235+ Cheap flights from Raleigh (RDU) to Lisbon (LIS)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 11/17. Fares are subject to change and may not be available on all flights or dates of travel.
RDU — LIS
Nov 12 — Nov 191
Wed 11/12
Wed 11/19
1 adult, Economy
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Cheapflights Tip: The best prices from Raleigh-Durham to Lisbon Humberto Delgado are usually found in November or February, booked 81 days in advance, depart on a Wednesday or Tuesday and return on a Thursday

Cheap flight deals from Raleigh to Lisbon

Discover tips and strategies to find the most affordable flight options for your journey from Raleigh (RDU) to Lisbon (LIS). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated October 13, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$616
(United Airlines)

One-way from

$235
(Kiwi.com)

Popular in

June

Cheapest in

November

Average price

$857
Provider with most accurate pricing for Raleigh-Durham-Lisbon Humberto Delgado flight deals.
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Provider most trusted by Cheapflights users for Raleigh-Durham-Lisbon Humberto Delgado flights.
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From Raleigh-Durham to Lisbon Humberto Delgado
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One-way flight from Raleigh-Durham to Lisbon Humberto Delgado
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Highest demand for flights based on searches. 23% potential increase in price ($290 potential increase over avg. RT price).
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Cheapest flight prices on average. 4% potential price decrease ($40 potential savings vs. average RT price).
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Average for round-trip flights in October 2025
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Find flight deals from Raleigh to Lisbon

Cheapest flights from Raleigh to Lisbon
Explore the most affordable flight options available from Raleigh to Lisbon. Find the lowest fares from popular airlines and budget airlines, with prices last updated on October 13, 2025.

This United Airlines deal was found by Cheapflights users on 10/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/262:37 pmRDU - LIS
2 stops15h 53mUnited Airlines
Fri 1/911:20 amLIS - RDU
2 stops31h 43mUnited Airlines
Deal found 10/12$616
This United Airlines deal was found by Cheapflights users on 10/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/256:30 amRDU - LIS
2 stops21h 50mUnited Airlines
Tue 12/211:20 amLIS - RDU
3 stops31h 47mUnited Airlines
Deal found 10/10$617
This oojo deal was found by Cheapflights users on 10/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/157:35 pmRDU - LIS
1 stop19h 45mIcelandair
Thu 11/209:20 pmLIS - RDU
1 stop26h 15mIcelandair
Deal found 10/12$619
This United Airlines deal was found by Cheapflights users on 10/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/104:00 pmRDU - LIS
1 stop14h 30mUnited Airlines
Mon 11/1711:55 amLIS - RDU
1 stop16h 46mUnited Airlines
Deal found 10/11$621
This Delta deal was found by Cheapflights users on 10/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/137:41 pmRDU - LIS
1 stop32h 14mDelta
Tue 12/235:30 amLIS - RDU
1 stop16h 15mDelta
Deal found 10/11$622
This Delta deal was found by Cheapflights users on 10/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/164:25 pmRDU - LIS
1 stop10h 35mDelta
Mon 12/2212:20 pmLIS - RDU
1 stop33h 25mDelta
Deal found 10/11$624
This Mytrip deal was found by Cheapflights users on 10/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/109:30 amRDU - LIS
3 stops29h 55mMultiple Airlines
Mon 11/176:25 amLIS - RDU
2 stops19h 55mMultiple Airlines
Deal found 10/12$625
This Air Canada deal was found by Cheapflights users on 10/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/169:30 amRDU - LIS
2 stops18h 50mAir Canada
Wed 12/245:00 amLIS - RDU
2 stops38h 08mAir Canada
Deal found 10/12$636
This United Airlines deal was found by Cheapflights users on 10/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/251:45 pmRDU - LIS
1 stop14h 35mUnited Airlines
Wed 1/711:20 amLIS - RDU
2 stops30h 07mUnited Airlines
Deal found 10/12$638
This Delta deal was found by Cheapflights users on 10/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/126:48 amRDU - LIS
1 stop20h 12mDelta
Wed 12/245:30 amLIS - RDU
1 stop16h 15mDelta
Deal found 10/11$641
This Air Canada deal was found by Cheapflights users on 10/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/251:25 pmRDU - LIS
1 stop14h 55mAir Canada
Mon 12/16:10 amLIS - RDU
2 stops20h 23mAir Canada
Deal found 10/11$642
This Delta deal was found by Cheapflights users on 10/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/132:12 pmRDU - LIS
2 stops13h 48mDelta
Wed 12/245:30 amLIS - RDU
1 stop16h 15mDelta
Deal found 10/11$646

Cheapflights Fare Finder

 
Customize your flight search to find flights from Raleigh to Lisbon that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated October 13, 2025.
Use the filters below to find and compare flights from Raleigh to Lisbon that are best for you.

Fly from

Raleigh

Fly to

Lisbon

Route

Depart

Return

Price

RaleighLisbon

RDU - LIS

RDULIS

Raleigh-Durham

Fri 12/26

2:37 pm-11:30 am

2 stops15h 53m

Lisbon Humberto Delgado

Fri 1/9

11:20 am-2:03 pm

2 stops31h 43m

$616

RaleighLisbon

RDU - LIS

RDULIS

Raleigh-Durham

Wed 10/22

7:05 am-9:20 am

2 stops21h 15m

Lisbon Humberto Delgado

Mon 11/3

5:00 am-11:41 pm

2 stops23h 41m

$617

RaleighLisbon

RDU - LIS

RDULIS

Raleigh-Durham

Tue 11/25

6:30 am-9:20 am

2 stops21h 50m

Lisbon Humberto Delgado

Tue 12/2

11:20 am-2:07 pm

3 stops31h 47m

$617

RaleighLisbon

RDU - LIS

RDULIS

Raleigh-Durham

Sat 12/13

7:41 pm-8:55 am

1 stop32h 14m

Lisbon Humberto Delgado

Tue 12/23

5:30 am-4:45 pm

1 stop16h 15m

$622

RaleighLisbon

RDU - LIS

RDULIS

Raleigh-Durham

Tue 12/16

4:25 pm-8:00 am

1 stop10h 35m

Lisbon Humberto Delgado

Mon 12/22

12:20 pm-4:45 pm

1 stop33h 25m

$624

RaleighLisbon

RDU - LIS

RDULIS

Raleigh-Durham

Fri 12/12

6:48 am-8:00 am

1 stop20h 12m

Lisbon Humberto Delgado

Thu 12/25

5:30 am-4:45 pm

1 stop16h 15m

$641

RaleighLisbon

RDU - LIS

RDULIS

Raleigh-Durham

Mon 11/10

3:15 pm-9:05 am

1 stop12h 50m

Lisbon Humberto Delgado

Mon 11/17

11:05 am-9:02 pm

1 stop14h 57m

$648

RaleighLisbon

RDU - LIS

RDULIS

Raleigh-Durham

Fri 12/12

6:48 am-8:00 am

1 stop20h 12m

Lisbon Humberto Delgado

Mon 12/22

12:20 pm-4:45 pm

1 stop33h 25m

$654

RaleighLisbon

RDU - LIS

RDULIS

Raleigh-Durham

Tue 12/9

4:25 pm-9:05 am

1 stop11h 40m

Lisbon Humberto Delgado

Sat 12/27

10:40 am-8:53 pm

1 stop15h 13m

$662

RaleighLisbon

RDU - LIS

RDULIS

Raleigh-Durham

Sun 12/14

7:45 pm-10:15 am

1 stop9h 30m

Lisbon Humberto Delgado

Fri 12/26

11:55 am-11:44 pm

1 stop16h 49m

$663

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/10

Showing 1-10 of 21 results
1
2
3

Compare providers for flights from Raleigh to Lisbon

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Raleigh to Lisbon in October.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy2 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars
AranGrantPrice Accuracy3 starsTrust Score*3 stars
eDreamsPrice Accuracy3 starsTrust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Raleigh-Lisbon flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Raleigh-Lisbon flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Raleigh-Lisbon flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Raleigh-Lisbon flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Raleigh-Lisbon flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from Raleigh to Lisbon

Have a flexible travel schedule? Discover the best time to fly to Lisbon from Raleigh with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Raleigh to Lisbon

How far ahead should I book a flight from Raleigh to Lisbon?

Use this chart to determine the optimal time to book a round-trip flight from Raleigh to Lisbon. Price data was last updated on October 10, 2025.

The price you pay for your flight from Raleigh to Lisbon may vary depending on when you book. For the best chance of a lower fare, look to book 81 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.

What is the cheapest month to book a flight from Raleigh to Lisbon?

Currently, December is the cheapest month in which you can book a flight from Raleigh to Lisbon (average of $509). Flying from Raleigh to Lisbon in June is currently the most expensive (average of $1,031). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from RDU to LIS?

Find hourly flight availability from Raleigh to Lisbon. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated October 13, 2025.

It’s typically best to fly out from Raleigh to Lisbon in the morning. Doing so could potentially save you 9% on the flight price compared to flying in the afternoon, which is usually more expensive.

What is the cheapest day to fly from Raleigh to Lisbon?

Use this chart to determine the cheapest time to fly round-trip from Raleigh to Lisbon. Price data was last updated on December 16, 2024.

Travelers seeking maximum savings on their Raleigh to Lisbon flight should consider departing on Monday at noon when fares are most often at their lowest. Thursday at noon flights should be avoided if possible as fares are typically the most expensive at this time.

Reviews of airlines servicing Lisbon

Get insights into the airlines that provide service to Lisbon. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Lisbon. Reviews last updated October 13, 2025.
Get a feel of what it's like to fly with Delta, Air France, and United Airlines from Raleigh to Lisbon by reading reviews from past customers. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
7,973 reviews

Entertainment

7.9

Comfort

7.9

Boarding

8.2

Crew

8.5

Food

7.3

Overall

8.0

Reviews

1 / 20
8.0
Excellent

Matthew,Oct 2025

GSP - ATL

This is always a full flight since it is the connecting route to primary destinations through Atlanta. That said, the crew handles the full load well. Not much more to say, it is a short flight with no in-flight services due to the length.
Delta
8.0
Very good
7,973 reviews
Delta
8.0
Very good
7,973 reviews

Entertainment

7.9

Comfort

7.9

Boarding

8.2

Crew

8.5

Food

7.3

Overall

8.0

Reviews

1 / 20
8.0
Excellent

Matthew,Oct 2025

GSP - ATL

This is always a full flight since it is the connecting route to primary destinations through Atlanta. That said, the crew handles the full load well. Not much more to say, it is a short flight with no in-flight services due to the length.
Air France
7.4
Good
1,474 reviews
Delta
8.0
Very good
7,973 reviews

Entertainment

7.9

Comfort

7.9

Boarding

8.2

Crew

8.5

Food

7.3

Overall

8.0

Reviews

1 / 20
8.0
Excellent

Matthew,Oct 2025

GSP - ATL

This is always a full flight since it is the connecting route to primary destinations through Atlanta. That said, the crew handles the full load well. Not much more to say, it is a short flight with no in-flight services due to the length.
United Airlines
7.4
Good
8,974 reviews
Delta
8.0
Very good
7,973 reviews

Entertainment

7.9

Comfort

7.9

Boarding

8.2

Crew

8.5

Food

7.3

Overall

8.0

Reviews

1 / 20
8.0
Excellent

Matthew,Oct 2025

GSP - ATL

This is always a full flight since it is the connecting route to primary destinations through Atlanta. That said, the crew handles the full load well. Not much more to say, it is a short flight with no in-flight services due to the length.
American Airlines
7.2
Good
11,043 reviews
Delta
8.0
Very good
7,973 reviews

Entertainment

7.9

Comfort

7.9

Boarding

8.2

Crew

8.5

Food

7.3

Overall

8.0

Reviews

1 / 20
8.0
Excellent

Matthew,Oct 2025

GSP - ATL

This is always a full flight since it is the connecting route to primary destinations through Atlanta. That said, the crew handles the full load well. Not much more to say, it is a short flight with no in-flight services due to the length.
TAP AIR PORTUGAL
7.1
Good
2,011 reviews
Delta
8.0
Very good
7,973 reviews

Entertainment

7.9

Comfort

7.9

Boarding

8.2

Crew

8.5

Food

7.3

Overall

8.0

Reviews

1 / 20
8.0
Excellent

Matthew,Oct 2025

GSP - ATL

This is always a full flight since it is the connecting route to primary destinations through Atlanta. That said, the crew handles the full load well. Not much more to say, it is a short flight with no in-flight services due to the length.

Related info for your journey

Find useful and relevant information for your journey from Raleigh to Lisbon. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • How long is the flight from Raleigh to Lisbon?

    For as low as $616, United Airlines can have you in Lisbon from Raleigh in 15h 53m. Raleigh and Lisbon are separated by a distance of 3734 mi. This flight may include one or multiple stops.

  • What are the cheapest airlines flying from Raleigh to Lisbon round-trip?

    Flying on Icelandair is currently your cheapest option to Lisbon, with prices starting at $465. Additional round-trip tickets that might be worth considering are offered by KLM and Delta, with the lowest prices starting at $570 and $574, respectively. Users have found that Icelandair is 51% cheaper than the other options available to this destination.

  • Where are the most common layover locations when flying from Raleigh to Lisbon?

    Flights departing from Raleigh and landing in Lisbon layover in Philadelphia most frequently.

  • What are some popular things to do or see while on a layover in Philadelphia?

    Philadelphia travelers tend to visit Rittenhouse Square, University of Pennsylvania, and Citizens Bank Park more than anywhere else. Travelers on a layover in Philadelphia can visit Rittenhouse Square, University of Pennsylvania, and Citizens Bank Park, by traveling 6.1 mi, 5.7 mi, and 4.3 mi, respectively after landing at Philadelphia. Travelers can book a car rental at Philadelphia for about $49 per day to make their sightseeing more efficient.

  • Where are the least popular layover locations for Raleigh to Lisbon flights?

    Raleigh to Lisbon flights have a layover in Washington, D.C. least often.

  • Can I find deals for flights from Raleigh to Lisbon that include hotel bookings?

    Yes. In addition to deals on Raleigh to Lisbon flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Raleigh to Lisbon?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Raleigh to Lisbon.

  • Can I find deals for business class flights from Raleigh to Lisbon?

    Yes. Cheapflights offers flight deals from Raleigh to Lisbon by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Raleigh to Lisbon?

    Currently, December is the cheapest month in which you can book a flight from Raleigh to Lisbon (average of $509). Flying from Raleigh to Lisbon in June is currently the most expensive (average of $1,031). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Traveling to a place near Lisbon?

Book flights to Lisbon if you plan to visit one of these locations
Sintra
Fátima
Oeiras
Nazaré
Ericeira
Costa da Caparica
Torres Vedras
Beja
Sesimbra
Colares

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Top 10 airlines flying from Raleigh to Lisbon

Discover the top 10 airlines that operate flights from Raleigh to Lisbon. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated October 13, 2025.
AirlineCheapestAverageFlexibilityOn-time
IcelandairCheapest$465Average$637FlexibilityNo cancel feeOn-time76%
KLMCheapest$570Average$867FlexibilityNo cancel feeOn-time75%
DeltaCheapest$574Average$912FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$594Average$950FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$601Average$1,049FlexibilityNo cancel feeOn-time71%
British AirwaysCheapest$615Average$816FlexibilityNo cancel feeOn-time70%
Virgin AtlanticCheapest$618Average$718FlexibilityNo cancel feeOn-time72%
Air FranceCheapest$634Average$919FlexibilityNo cancel feeOn-time77%
Air CanadaCheapest$650Average$947FlexibilityNo cancel feeOn-time67%
LufthansaCheapest$681Average$966FlexibilityNo cancel feeOn-time76%

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