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$447+ Cheap flights from Honolulu (HNL) to Porto (OPO)

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 5/4. Fares are subject to change and may not be available on all flights or dates of travel.
HNL — OPO
Mar 21 — Mar 281
Sat 3/21
Sat 3/28
1 adult, Economy
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Cheap 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 February 19, 2026.

This BusinessClass deal was found by Cheapflights users on 2/18. 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 BusinessClass is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/146:41 pm
HNL
-
OPO
2 stops37h 24m
Multiple Airlines
Tue 5/58:20 am
OPO
-
HNL
2 stops24h 17m
Multiple Airlines
Deal found 2/18$608
This Gotogate deal was found by Cheapflights users on 2/15. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 3/49:50 am
HNL
-
OPO
2 stops27h 50m
Multiple Airlines
Sun 3/86:15 am
OPO
-
HNL
2 stops24h 25m
Multiple Airlines
Deal found 2/15$694
This United Airlines deal was found by Cheapflights users on 2/15. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 2/268:45 pm
HNL
-
OPO
2 stops26h 45m
United Airlines
Mon 3/212:30 pm
OPO
-
HNL
2 stops42h 51m
United Airlines
Deal found 2/15$724
This Air France deal was found by Cheapflights users on 2/16. 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 5/57:00 am
HNL
-
OPO
2 stops28h 05m
Multiple Airlines
Tue 5/197:00 pm
OPO
-
HNL
2 stops35h 49m
Multiple Airlines
Deal found 2/16$807
This KLM deal was found by Cheapflights users on 2/15. 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.
Fri 5/810:38 pm
HNL
-
OPO
2 stops29h 52m
KLM
Sat 5/235:55 am
OPO
-
HNL
2 stops24h 54m
KLM
Deal found 2/15$940
This Gurufare deal was found by Cheapflights users on 2/18. 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 Gurufare is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/87:00 am
HNL
-
OPO
2 stops37h 55m
SWISS
Sat 5/238:40 am
OPO
-
HNL
2 stops23h 58m
SWISS
Deal found 2/18$956
This Ovago deal was found by Cheapflights users on 2/16. 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 Ovago is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/83:01 pm
HNL
-
OPO
2 stops29h 39m
Multiple Airlines
Sat 5/238:40 pm
OPO
-
HNL
2 stops36h 31m
Multiple Airlines
Deal found 2/16$986
This Booking.com deal was found by Cheapflights users on 2/17. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/39:40 pm
HNL
-
OPO
2 stops46h 10m
Multiple Airlines
Fri 7/178:40 am
OPO
-
HNL
2 stops23h 00m
Multiple Airlines
Deal found 2/17$1,150
This United Airlines deal was found by Cheapflights users on 2/18. 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 4/1410:05 pm
HNL
-
OPO
2 stops24h 40m
United Airlines
Tue 5/56:00 am
OPO
-
HNL
3 stops27h 04m
United Airlines
Deal found 2/18$1,179

Find 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 February 19, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$608
(BusinessClass)

One-way from

$447
(Kiwi.com)
Provider with most accurate pricing for Honolulu-Porto flight deals.
Search Deals
Provider most trusted by Cheapflights users for Honolulu-Porto flights.
Search Deals
From Honolulu to Porto
Search Deals
One-way flight from Honolulu to Porto
Search Deals

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 February 19, 2026.
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

Tue 4/14

6:41 pm-7:05 pm

2 stops37h 24m

Porto

Tue 5/5

8:20 am-9:37 pm

2 stops24h 17m

$608

HonoluluPorto

HNL - OPO

HNLOPO

Honolulu

Wed 3/4

9:50 am-11:40 pm

2 stops27h 50m

Porto

Sun 3/8

6:15 am-8:40 pm

2 stops24h 25m

$694

HonoluluPorto

HNL - OPO

HNLOPO

Honolulu

Tue 5/5

7:00 am-10:05 pm

2 stops28h 05m

Porto

Tue 5/19

7:00 pm-7:49 pm

2 stops35h 49m

$807

HonoluluPorto

HNL - OPO

HNLOPO

Honolulu

Fri 5/8

10:38 pm-3:30 pm

2 stops29h 52m

Porto

Sat 5/23

5:55 am-7:49 pm

2 stops24h 54m

$940

HonoluluPorto

HNL - OPO

HNLOPO

Honolulu

Fri 5/8

7:00 am-7:55 am

2 stops37h 55m

Porto

Sat 5/23

8:40 am-9:38 pm

2 stops23h 58m

$956

HonoluluPorto

HNL - OPO

HNLOPO

Honolulu

Fri 5/8

3:01 pm-7:40 am

2 stops29h 39m

Porto

Sat 5/23

8:40 pm-10:11 pm

2 stops36h 31m

$986

HonoluluPorto

HNL - OPO

HNLOPO

Honolulu

Tue 4/14

10:05 pm-9:45 am

2 stops24h 40m

Porto

Tue 5/5

6:00 am-10:04 pm

3 stops27h 04m

$1,179

HonoluluPorto

HNL - OPO

HNLOPO

Honolulu

Fri 7/3

3:35 pm-10:20 am

1 stop31h 45m

Porto

Fri 7/17

5:00 am-7:21 pm

2 stops25h 21m

$1,630

HonoluluPorto

HNL - OPO

HNLOPO

Honolulu

Fri 7/3

9:55 pm-6:50 am

2 stops45h 55m

Porto

Fri 7/17

9:05 am-8:20 pm

3 stops46h 15m

$1,852

HonoluluPorto

HNL - OPO

HNLOPO

Honolulu

Mon 5/4

8:34 pm-9:30 am

3 stops49h 56m

$447

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/17

Showing 1-10 of 15 results
1
2

Compare providers for flights from Honolulu to Porto

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 Honolulu to Porto in February.
ProviderPrice AccuracyTrust Score*
FlightHubPrice Accuracy3 starsTrust Score*3 stars
AranGrantPrice Accuracy2 starsTrust Score*2 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 Honolulu-Porto flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Honolulu-Porto flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Honolulu-Porto flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Honolulu-Porto 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 Honolulu-Porto 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 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 February 19, 2026.
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
9,321 reviews

Boarding

7.7

Crew

8.1

Overall

7.4

Entertainment

7.1

Comfort

7.3

Food

6.6

Reviews

1 / 20
10.0
Excellent

Dane,Jan 2026

TYS - IAD

It was a short flight, so no time for amenities. Just glad everything was quick and easy from boarding to arriving at my destination with my family
United Airlines
7.4
Good
9,321 reviews
United Airlines
7.4
Good
9,321 reviews

Boarding

7.7

Crew

8.1

Overall

7.4

Entertainment

7.1

Comfort

7.3

Food

6.6

Reviews

1 / 20
10.0
Excellent

Dane,Jan 2026

TYS - IAD

It was a short flight, so no time for amenities. Just glad everything was quick and easy from boarding to arriving at my destination with my family

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 and KLM fly from Honolulu to Porto in about 27h 40m. The time it takes to get you to your destination can typically vary by up to 2h 12m. Honolulu and Porto are separated by a distance of 7680 mi. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

  • 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 $588 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.

See more FAQs

Traveling to a place near Porto?

Book flights to Porto if you plan to visit one of these locations
Vila Nova de Gaia
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 February 19, 2026.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$588Average$1,145FlexibilityNo cancel feeOn-time69%

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