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$253+ Cheap flights from Raleigh (RDU) to Portugal

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 11/27. Fares are subject to change and may not be available on all flights or dates of travel.
RDU — LIS
Nov 27 — Dec 41
Thu 11/27
Thu 12/4
1 adult, Economy
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Cheap flight deals from Raleigh to Portugal

Keep the following information in mind while searching for Raleigh to Portugal flight deals. Data was last updated October 28, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$404
(Booking.com)

One-way from

$253
(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 Portugal
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One-way flight from Raleigh-Durham to Portugal
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Highest demand for flights based on searches. 23% potential increase in price ($291 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 Portugal

Cheapest flights from Raleigh to Portugal
Explore the most affordable flight options available from Raleigh to Portugal. Find the lowest fares from popular airlines and budget airlines, with prices last updated on October 28, 2025.

This Booking.com deal was found by Cheapflights users on 10/27. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/297:35 pmRDU - LIS
1 stop19h 45mIcelandair
Sun 12/149:20 pmLIS - RDU
1 stop26h 15mIcelandair
Deal found 10/27$404
This Mytrip deal was found by Cheapflights users on 10/28. 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.
Thu 11/271:25 pmRDU - LIS
1 stop14h 55mMultiple Airlines
Thu 12/45:00 amLIS - RDU
1 stop14h 05mMultiple Airlines
Deal found 10/28$500
This Mytrip deal was found by Cheapflights users on 10/27. 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.
Thu 12/41:25 pmRDU - LIS
1 stop14h 55mMultiple Airlines
Thu 12/115:00 amLIS - RDU
1 stop14h 05mMultiple Airlines
Deal found 10/27$502
This United Airlines deal was found by Cheapflights users on 10/26. 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 12/21:25 pmRDU - LIS
1 stop14h 55mUnited Airlines
Tue 12/1611:20 amLIS - RDU
2 stops36h 27mUnited Airlines
Deal found 10/26$514
This Booking.com deal was found by Cheapflights users on 10/26. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/251:25 pmRDU - LIS
1 stop14h 55mMultiple Airlines
Tue 12/26:10 amLIS - RDU
2 stops20h 23mMultiple Airlines
Deal found 10/26$521
This Delta deal was found by Cheapflights users on 10/26. 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.
Mon 11/2410:00 amRDU - OPO
2 stops19h 30mDelta
Sun 12/711:15 amOPO - RDU
2 stops37h 04mDelta
Deal found 10/26$533
This United Airlines deal was found by Cheapflights users on 10/26. 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 11/2410:35 amRDU - OPO
2 stops17h 55mUnited Airlines
Sun 12/712:30 pmOPO - RDU
1 stop30h 35mUnited Airlines
Deal found 10/26$538
This Delta deal was found by Cheapflights users on 10/25. 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 12/21:08 pmRDU - OPO
2 stops16h 22mDelta
Thu 12/186:35 amOPO - RDU
2 stops21h 01mDelta
Deal found 10/25$541
This Air France deal was found by Cheapflights users on 10/27. 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 France is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/21:08 pmRDU - OPO
2 stops16h 22mAir France
Sun 12/2111:25 amOPO - RDU
1 stop34h 20mAir France
Deal found 10/27$549
This Mytrip deal was found by Cheapflights users on 10/27. 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 11/177:35 pmRDU - OPO
2 stops19h 55mMultiple Airlines
Mon 11/246:30 amOPO - RDU
2 stops17h 05mMultiple Airlines
Deal found 10/27$550
This Mytrip deal was found by Cheapflights users on 10/27. 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.
Tue 12/21:25 pmRDU - OPO
3 stops24h 05mMultiple Airlines
Thu 12/187:25 amOPO - RDU
2 stops18h 55mMultiple Airlines
Deal found 10/27$572
This Orbitz deal was found by Cheapflights users on 10/27. 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 Orbitz is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/212:24 pmRDU - OPO
2 stops14h 16mIberia
Thu 12/188:20 amOPO - RDU
2 stops38h 20mIberia
Deal found 10/27$613

Cheapflights Fare Finder

 
Customize your flight search to find flights from Raleigh to Portugal 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 28, 2025.
Use the filters below to find and compare flights from Raleigh to Portugal that are best for you.

Fly from

Raleigh

Fly to

Portugal

Route

Depart

Return

Price

RaleighPorto

RDU - OPO

RDUOPO

Raleigh-Durham

Sat 2/7

1:29 pm-11:10 am

2 stops40h 41m

Porto

Sat 2/21

8:40 am-9:24 pm

2 stops17h 44m

$505

RaleighLisbon

RDU - LIS

RDULIS

Raleigh-Durham

Tue 12/2

1:25 pm-9:20 am

1 stop14h 55m

Lisbon Humberto Delgado

Tue 12/16

11:20 am-6:47 pm

2 stops36h 27m

$514

RaleighLisbon

RDU - LIS

RDULIS

Raleigh-Durham

Mon 12/1

3:05 pm-10:15 am

1 stop14h 10m

Lisbon Humberto Delgado

Wed 12/17

5:00 am-9:33 pm

2 stops21h 33m

$523

RaleighLisbon

RDU - LIS

RDULIS

Raleigh-Durham

Sat 11/29

10:35 am-8:55 am

2 stops17h 20m

Lisbon Humberto Delgado

Tue 12/16

11:20 am-5:08 pm

2 stops34h 48m

$525

RaleighLisbon

RDU - LIS

RDULIS

Raleigh-Durham

Sun 3/22

2:50 pm-10:15 am

1 stop15h 25m

Lisbon Humberto Delgado

Mon 3/30

5:05 am-1:45 pm

1 stop13h 40m

$525

RaleighLisbon

RDU - LIS

RDULIS

Raleigh-Durham

Thu 11/27

6:00 am-9:20 am

2 stops22h 20m

Lisbon Humberto Delgado

Thu 12/4

10:55 am-9:21 pm

2 stops39h 26m

$525

RaleighLisbon

RDU - LIS

RDULIS

Raleigh-Durham

Mon 12/1

6:55 pm-5:30 pm

1 stop17h 35m

Lisbon Humberto Delgado

Tue 12/16

5:30 am-4:45 pm

1 stop16h 15m

$526

RaleighLisbon

RDU - LIS

RDULIS

Raleigh-Durham

Mon 12/1

6:55 pm-11:20 am

1 stop11h 25m

Lisbon Humberto Delgado

Tue 12/16

5:30 am-4:45 pm

1 stop16h 15m

$526

RaleighLisbon

RDU - LIS

RDULIS

Raleigh-Durham

Tue 12/2

2:50 pm-9:00 am

1 stop13h 10m

Lisbon Humberto Delgado

Tue 12/16

5:30 am-4:45 pm

1 stop16h 15m

$527

RaleighLisbon

RDU - LIS

RDULIS

Raleigh-Durham

Sun 3/15

7:51 pm-10:15 am

1 stop10h 24m

Lisbon Humberto Delgado

Wed 3/25

5:00 am-7:01 pm

2 stops18h 01m

$527

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/26

Showing 1-10 of 45 results
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Best time to book a flight from Raleigh to Portugal

Have a flexible travel schedule? Discover the best time to fly to Portugal 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 Portugal

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

Currently, December is the cheapest month in which you can book a flight from Raleigh to Portugal (average of $509). Flying from Raleigh to Portugal 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 PT?

Find hourly flight availability from Raleigh to Portugal. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated October 28, 2025.

It’s optimal to fly from Raleigh to Portugal at noon. By choosing this option you can save up to 13% on the cost of your flight, compared to a flight in the evening.

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

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

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

Reviews of airlines servicing Portugal

Get insights into the airlines that provide service to Portugal. 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 Portugal. Reviews last updated October 28, 2025.
See what other customers who have flown with Delta, United Airlines, and American Airlines from Raleigh to Portugal have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
7.9
Good
7,994 reviews

Boarding

8.2

Comfort

7.9

Crew

8.5

Entertainment

7.9

Food

7.3

Overall

7.9

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
7.9
Good
7,994 reviews
Delta
7.9
Good
7,994 reviews

Boarding

8.2

Comfort

7.9

Crew

8.5

Entertainment

7.9

Food

7.3

Overall

7.9

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
9,000 reviews
Delta
7.9
Good
7,994 reviews

Boarding

8.2

Comfort

7.9

Crew

8.5

Entertainment

7.9

Food

7.3

Overall

7.9

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
11,032 reviews
Delta
7.9
Good
7,994 reviews

Boarding

8.2

Comfort

7.9

Crew

8.5

Entertainment

7.9

Food

7.3

Overall

7.9

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
2,035 reviews
Delta
7.9
Good
7,994 reviews

Boarding

8.2

Comfort

7.9

Crew

8.5

Entertainment

7.9

Food

7.3

Overall

7.9

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.
Lufthansa
6.8
Okay
7,533 reviews
Delta
7.9
Good
7,994 reviews

Boarding

8.2

Comfort

7.9

Crew

8.5

Entertainment

7.9

Food

7.3

Overall

7.9

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 Portugal. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly from for flights from Raleigh to Portugal?

    Raleigh-Durham (RDU), located 11.1 mi from the city center, is the airport you fly out of when you book flights from Raleigh to Portugal.

  • How long is the flight from Raleigh to Portugal?

    There are many flights that can get you from Raleigh to Portugal in 14h 55m. Fly via SWISS, United Airlines, or Delta to get the fastest option. The distance between Raleigh and Portugal is about 3734 mi. This flight may include one or multiple stops.

  • What are the most popular routes from Raleigh to Portugal?

    While some choose either Raleigh-Durham - Porto or Raleigh-Durham - Ponta Delgada Nordela, Raleigh-Durham - Lisbon Humberto Delgado is the most popular route from Raleigh to Portugal.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Raleigh to Portugal 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 Portugal?

    Currently, December is the cheapest month in which you can book a flight from Raleigh to Portugal (average of $509). Flying from Raleigh to Portugal 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

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Top 10 airlines flying from Raleigh to Portugal

Discover the top 10 airlines that operate flights from Raleigh to Portugal. 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 28, 2025.
AirlineCheapestAverageFlexibilityOn-time
IcelandairCheapest$458Average$556FlexibilityNo cancel feeOn-time76%
American AirlinesCheapest$558Average$974FlexibilityNo cancel feeOn-time71%
KLMCheapest$570Average$867FlexibilityNo cancel feeOn-time75%
DeltaCheapest$575Average$852FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$594Average$1,174FlexibilityNo cancel feeOn-time69%
British AirwaysCheapest$615Average$816FlexibilityNo cancel feeOn-time70%
Virgin AtlanticCheapest$618Average$718FlexibilityNo cancel feeOn-time72%
Air FranceCheapest$633Average$903FlexibilityNo cancel feeOn-time77%
LufthansaCheapest$633Average$1,199FlexibilityNo cancel feeOn-time76%
Air CanadaCheapest$638Average$1,120FlexibilityNo cancel feeOn-time67%

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