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$705+ Cheap flights from Honolulu (HNL) to Porto (OPO)

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 11/10. Fares are subject to change and may not be available on all flights or dates of travel.
HNL — OPO
Oct 17 — Oct 241
Fri 10/17
Fri 10/24
1 adult, Economy
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Cheap flight deals from Honolulu to Porto

Discover tips and strategies to find the most affordable flight options for your journey from Honolulu (HNL) to Porto (OPO). 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 September 17, 2025.

Round-trip from

$705
(lastminute.com)
From Honolulu to Porto
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Find flight deals from Honolulu to Porto

Cheapest flights from Honolulu to Porto
Explore the most affordable flight options available from Honolulu to Porto. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 17, 2025.

This lastminute.com deal was found by Cheapflights users on 9/15. 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 lastminute.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/1011:30 pmHNL - OPO
2 stops29h 15mMultiple Airlines
Mon 11/1712:05 pmOPO - HNL
2 stops44h 22mMultiple Airlines
Deal found 9/15$705
This AranGrant deal was found by Cheapflights users on 9/15. 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 AranGrant is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/311:30 pmHNL - OPO
2 stops29h 15mLufthansa
Mon 12/81:45 pmOPO - HNL
2 stops41h 55mLufthansa
Deal found 9/15$3,642
This Arangrant deal was found by Cheapflights users on 9/15. 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 Arangrant is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/1711:30 pmHNL - OPO
2 stops36h 55mLufthansa
Tue 12/166:00 amOPO - HNL
2 stops26h 30mLufthansa
Deal found 9/15$3,651
This KLM deal was found by Cheapflights users on 9/17. 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 KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/1711:50 pmHNL - OPO
2 stops24h 40mMultiple Airlines
Tue 12/1611:25 amOPO - HNL
2 stops44h 23mMultiple Airlines
Deal found 9/17$3,790
This KLM deal was found by Cheapflights users on 9/15. 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 KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/185:00 pmHNL - OPO
2 stops31h 30mKLM
Wed 12/1711:25 amOPO - HNL
2 stops43h 03mKLM
Deal found 9/15$3,794
This United Airlines deal was found by Cheapflights users on 9/17. 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.
Wed 11/2611:30 pmHNL - OPO
2 stops29h 15mUnited Airlines
Sun 12/286:00 amOPO - HNL
2 stops26h 30mUnited Airlines
Deal found 9/17$4,155

Cheapflights Fare Finder

 
Customize your flight search to find flights from Honolulu to Porto 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 September 17, 2025.
Use the filters below to find and compare flights from Honolulu to Porto that are best for you.

Fly from

Honolulu

Fly to

Porto

Route

Depart

Return

Price

HonoluluPorto

HNL - OPO

HNLOPO

Honolulu

Mon 11/10

11:30 pm-2:45 pm

2 stops29h 15m

Porto

Mon 11/17

12:05 pm-10:27 pm

2 stops44h 22m

$705

HonoluluPorto

HNL - OPO

HNLOPO

Honolulu

Thu 3/5

10:55 pm-10:25 pm

2 stops37h 30m

Porto

Mon 3/9

4:15 pm-9:28 pm

2 stops39h 13m

$824

HonoluluPorto

HNL - OPO

HNLOPO

Honolulu

Mon 11/3

11:30 pm-2:45 pm

2 stops29h 15m

Porto

Mon 12/8

1:45 pm-9:40 pm

2 stops41h 55m

$3,642

HonoluluPorto

HNL - OPO

HNLOPO

Honolulu

Mon 11/17

11:30 pm-10:25 pm

2 stops36h 55m

Porto

Tue 12/16

6:00 am-10:30 pm

2 stops26h 30m

$3,651

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/15

Best time to book a flight from Honolulu to Porto

Have a flexible travel schedule? Discover the best time to fly to Porto from Honolulu 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.

Reviews of airlines servicing Porto

Get insights into the airlines that provide service to Porto. 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 Porto. Reviews last updated September 17, 2025.
Read reviews from past customers who have flown United Airlines from Honolulu to Porto. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
United Airlines
7.4
Good
8,924 reviews

Entertainment

7.1

Overall

7.4

Crew

8.1

Comfort

7.3

Food

6.6

Boarding

7.7

Reviews

1 / 20
4.0
Okay

Thomas,Mar 2025

SFO - TPE

When I asked for an extra snack, I got an unhappy look from the stewardess. Geez, does one extra snack really affect the bottom line??
United Airlines
7.4
Good
8,924 reviews
United Airlines
7.4
Good
8,924 reviews

Entertainment

7.1

Overall

7.4

Crew

8.1

Comfort

7.3

Food

6.6

Boarding

7.7

Reviews

1 / 20
4.0
Okay

Thomas,Mar 2025

SFO - TPE

When I asked for an extra snack, I got an unhappy look from the stewardess. Geez, does one extra snack really affect the bottom line??

Related info for your journey

Find useful and relevant information for your journey from Honolulu to Porto. 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 Honolulu to Porto?

    Airlines like Lufthansa fly from Honolulu to Porto in about 37h 30m. The time it takes to get you to your destination can typically vary by up to . Honolulu and Porto are separated by a distance of 7680 mi.

  • What is the cheapest airline to fly from Honolulu to Porto round-trip?

    Our cheapest airline available from Honolulu to Porto is United Airlines. Our recent data shows that you can find tickets from as low as $662 on this airline.

  • Can I find deals for flights from Honolulu to Porto that include hotel bookings?

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

  • How can I find direct flights from Honolulu to Porto?

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

  • Can I find deals for business class flights from Honolulu to Porto?

    Yes. Cheapflights offers flight deals from Honolulu to Porto 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 Honolulu to Porto?

    Currently, January is the cheapest month in which you can book a flight from Honolulu to Porto (average of $523). Flying from Honolulu to Porto in June is currently the most expensive (average of $1,028). 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 Porto?

Book flights to Porto if you plan to visit one of these locations
Aveiro
Arcos de Valdevez
Coimbra

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Top airline flying from Honolulu to Porto

Discover the top airline that operate flights from Honolulu to Porto. 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 September 17, 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$662Average$1,311FlexibilityNo cancel feeOn-time69%

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