RM 1,617 Find Cheap Flights from Portugal to Southeast Asia

1 adult
1 adult, Economy

KAYAK searches hundreds of travel sites at once for deals on flights to Southeast Asia

 
These are the airlines KAYAK users have selected most often from within our search results for flights to Southeast Asia, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results for flights to Southeast Asia, as well as popular online travel agencies
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KAYAK's insights & trends for flights to Southeast Asia

Get data-powered insights and trends for flights to Southeast Asia to help you find the cheapest flights, the best time to fly and much more.

What is the cheapest month to fly from Portugal to Southeast Asia?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for flights from Portugal to Southeast Asia, 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 Portugal to Southeast Asia is May, when tickets cost RM 3,623 (return) on average. On the other hand, the most expensive months are April and December, when the average cost of round-trip tickets is RM 5,071 and RM 4,856 respectively.

How far in advance should I book a flight from Portugal to Southeast Asia?

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights to Southeast Asia, removes the top 0.1% to account for outliers, and then takes the average of all the values for each week.

To get a below-average price on the flight from Portugal to Southeast Asia, you should book around 2 weeks before departure. For the absolute cheapest price, our data suggests you should book 20 weeks before departure.


Good to know

Low seasonMay
High seasonNovember
Cheapest flightRM 1,617
Best time to beat the crowds (14% less expensive on average)
Most popular time to fly and prices are also 6% lower on average.
Flight from Lisbon to Kuala Lumpur

FAQs for booking flights from Portugal to Southeast Asia

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

    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 Portugal to Southeast Asia.

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

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

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

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional return ticket. You could then fly from Portugal to Southeast Asia 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 Portugal to Southeast Asia?

    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 Portugal to Southeast Asia up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

  • What is the cheapest day to fly to Southeast Asia?

    Based on KAYAK data, the cheapest day to fly to Southeast Asia is Wednesday when return tickets can be as cheap as RM 3,035. On the other hand, the most expensive day to fly is Wednesday, when return prices are RM 3,035 on average.

  • What is the cheapest time of day to fly to Southeast Asia?

    The cheapest time of day to fly to Southeast Asia is generally in the afternoon, when round-trip flights cost RM 735 on average. The most expensive time of day to fly to Southeast Asia is generally in the morning, which is peak travel time and where the average cost of a ticket is RM 895.

Top airline flying from Portugal to Southeast Asia

 
See real verified KAYAK customer reviews for airlines flying to Southeast Asia. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline from Portugal to Southeast Asia. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Portugal to Southeast Asia? 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.
6.6
British AirwaysOverall score based on 7008 reviews
6.8Boarding
6.7Comfort
6.3Food
6.4Entertainment
7.6Crew
Airline reviews

Last minute gate change. Didn’t put our TSA global on our trip even though we asked multiple times to confirm. Did not help with food when could not eat what was served.

2.0 MediocreAnonymous, Jun 2025LHR - PHL
Read more British Airways reviews

Last minute gate change. Didn’t put our TSA global on our trip even though we asked multiple times to confirm. Did not help with food when could not eat what was served.

Boarding is always a challenge as folks in al groups crowd around for no reason, but crew handled it well. I once again applaud the LHR ground baggage staff as they got our bags from a flight at Terminal 5A to a flight in Terminal 5C within 40 minutes...amazing!

The crew did not really interact with me which was no problem as I was fine. I did see that they were somewhat short with some passengers but that was not common. Just in general, they did not seem friendly - no requirement to be so but I am used to a friendly crew on most flights. The food was just ok but with a flight that large, I would think it hard to make something more elaborate.

As seats on planes seem to get smaller over time and people’s bodies get bigger significant mismatches occur. I was seated in the middle of a four seat center row on a 9 hour 10 minute flight from Heathrow to Seattle. The woman seated next to me was such a size that she required a seat belt extension in order for her to fasten the seatbelt around her. She occupied fully 1/3 or more of both my seat and my table. Her and her stuff also occupied most of the space for my feet. Not an enjoyable way to spend on a 9 hour flight. My most miserable flying experience ever.

Was 3 hrs delayed and my poor friend I met in Barcelona was waiting at airport for 3 hrs. Dallas airport was awful

The airplane was old. Some things didn’t work out of middle seat was broken. The rest was OK.

British Airways provided prompt service and maintained excellent cleanliness throughout the flight. However, the business class seats felt tight, and the cabin temperature was uncomfortably warm, making it difficult to sleep. Since I couldn’t rest, I turned to the in-flight entertainment, but the selection was heavily focused on Paramount content, which isn’t my preference. I also found the Bollywood movie options quite limited compared to other airlines. On the positive side, the spirits selection was impressive, and the staff was exceptionally friendly and attentive.

The crew were professional and friendly. It was the most uncomfortable international flight I've ever flown. Crammed in passengers. No overhead space to put my bag. No leg room and unable to recline seat due to seats too close together so it upset passenger behind me! Upgrade price to get 2 inches of more space unreasonable.

It was just ok. Half the bathrooms were broke on the flight.

Aer Lingus was the actual airline so they handled everything professionally.

Book cheap flights from Portugal to Southeast Asia

Recent return flight deals

 
These are the cheapest return flights to Southeast Asia found on KAYAK in the last 72 hours.
13/10Mon
2 stops
28h 40mOPO-KUL
24/10Fri
2 stops
29h 05mKUL-OPO
RM 3,348
18/9Thu
1 stopBritish Airways
17h 50mLIS-KUL
30/9Tue
2 stopsBritish Airways
26h 15mKUL-LIS
RM 3,395
31/8Sun
1 stopQatar Airways
17h 30mLIS-KUL
14/9Sun
2 stopsQatar Airways
25h 00mKUL-LIS
RM 4,201
20/10Mon
1 stopQatar Airways
19h 10mLIS-KUL
5/11Wed
2 stopsQatar Airways
20h 55mKUL-LIS
RM 4,239
13/10Mon
2 stopsIberia
31h 55mOPO-KUL
25/10Sat
2 stopsIberia
30h 10mKUL-OPO
RM 4,260
20/10Mon
1 stopEtihad Airways
27h 40mLIS-KUL
5/11Wed
1 stopEtihad Airways
17h 35mKUL-LIS
RM 4,307
8/7Tue
1 stopEtihad Airways
16h 00mLIS-KUL
15/7Tue
1 stopEtihad Airways
16h 40mKUL-LIS
RM 4,319
25/6Wed
1 stopTurkish Airlines
37h 10mLIS-KUL
10/7Thu
1 stopTurkish Airlines
30h 50mKUL-LIS
RM 4,438
13/10Mon
1 stopTurkish Airlines
33h 20mOPO-KUL
25/10Sat
1 stopTurkish Airlines
18h 10mKUL-OPO
RM 4,446
13/10Mon
2 stopsIberia
35h 35mOPO-KUL
25/10Sat
2 stopsIberia
30h 10mKUL-OPO
RM 4,547

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Recent one-way flight deals

 
Only flying one-way? Below are some of the best deals for one-way flights to Southeast Asia found on KAYAK in the last 72 hours.
24/6Tue
3 stops
50h 25mLIS-KUL
RM 1,617
15/10Wed
2 stops
54h 05mOPO-KUL
RM 1,642
22/6Sun
1 stopMalaysia Airlines
33h 10mLIS-KUL
RM 2,356
23/6Mon
1 stopMalaysia Airlines
19h 10mLIS-KUL
RM 2,386
2/7Wed
1 stopEtihad Airways
16h 00mLIS-KUL
RM 2,559
2/7Wed
1 stopEtihad Airways
16h 00mLIS-KUL
RM 2,614
30/6Mon
1 stopTurkish Airlines
37h 10mLIS-KUL
RM 3,205
5/7Sat
2 stopsQatar Airways
23h 30mLIS-KUL
RM 3,390
15/7Tue
2 stopsQatar Airways
22h 00mLIS-KUL
RM 3,526
5/7Sat
1 stopTurkish Airlines
20h 15mLIS-KUL
RM 3,678

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Last minute flights to Southeast Asia

Last minute flight, train and bus deals

 
These last-minute flight deals are the cheapest flights found on KAYAK in the last 72 hours for flights to Southeast Asia that are departing in the next 10 days.
17/6Tue
multi-stopEtihad Airways
27h 45mLIS-KUL
25/6Wed
multi-stopEtihad Airways
28h 45mKUL-LIS
RM 4,454
17/6Tue
multi-stopEtihad Airways
16h 05mLIS-KUL
25/6Wed
multi-stopEtihad Airways
28h 45mKUL-LIS
RM 4,699
17/6Tue
multi-stopEmirates
23h 25mLIS-KUL
24/6Tue
multi-stopEmirates
17h 20mKUL-LIS
RM 4,915
17/6Tue
multi-stopEmirates
23h 25mLIS-KUL
24/6Tue
multi-stopEmirates
17h 20mKUL-LIS
RM 4,932
17/6Tue
multi-stopEmirates
35h 25mLIS-KUL
24/6Tue
multi-stopEmirates
17h 20mKUL-LIS
RM 4,982
17/6Tue
multi-stopEmirates
17h 10mLIS-KUL
24/6Tue
multi-stopEmirates
17h 20mKUL-LIS
RM 4,995
17/6Tue
multi-stopTurkish Airlines
20h 15mLIS-KUL
25/6Wed
multi-stopTurkish Airlines
30h 05mKUL-LIS
RM 5,088
17/6Tue
multi-stop
33h 45mLIS-KUL
24/6Tue
multi-stop
28h 55mKUL-LIS
RM 6,954
17/6Tue
multi-stop
33h 15mLIS-KUL
24/6Tue
multi-stop
28h 55mKUL-LIS
RM 7,503
17/6Tue
multi-stopQatar Airways
20h 15mLIS-KUL
24/6Tue
multi-stopQatar Airways
20h 10mKUL-LIS
RM 7,858

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Everything you need to know for your flight to Southeast Asia

Cabin class types available on flights to Southeast Asia

Cabin classes available on flights to Southeast Asia. Prices are the lowest found on KAYAK over the last 7 days. Price and availability is not guaranteed.

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