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 $1,033). 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 day to fly from Honolulu to Porto?

Travelers seeking maximum savings on their Honolulu to Porto flight should consider departing on Wednesday mornings when fares are most often at their lowest. Monday evenings flights should be avoided if possible as fares are typically the most expensive at this time.

In terms of precipitation, rainfall in Porto ranges from 0.7 - 7.7 inches per month. December is typically the wettest month, when rainfall can reach 7.7 in. July is typically the driest time to visit Porto when rainfall is around 0.7 in.

If weather is an important factor for your trip to Porto, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 68.0 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 48.2 F).

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

Departing on a Saturday is a good option for securing a great price. You can expect to save up to 35% when planning your travel around this day of the week.

What is the cheapest time of day to fly from HNL to OPO?

It’s typically best to fly out from Honolulu to Porto at noon. Doing so could potentially save you 12% on the flight price compared to flying in the morning, which is usually more expensive.

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.

$411+ Flights from Honolulu to Porto

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Cheap flight deals from Honolulu to Porto

Round-trip from	$973 (United Airlines)
One-way from	$411 (Kiwi.com)

From Honolulu to Porto

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One-way flight 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 July 4, 2025.

Sun 10/129:40 pmHNL - OPO

2 stops31h 05mUnited Airlines

Sun 10/196:00 amOPO - HNL

2 stops45h 18mUnited Airlines

Deal found 7/2

$973

Sun 10/1210:30 pmHNL - OPO

2 stops30h 15mMultiple Airlines

Sun 10/198:40 amOPO - HNL

2 stops23h 10mMultiple Airlines

Deal found 7/3

$991

Sun 8/1710:00 pmHNL - OPO

2 stops30h 55mAmerican Airlines

Sun 8/248:15 amOPO - HNL

2 stops24h 19mAmerican Airlines

Deal found 7/3

$1,029

Fri 7/187:00 amHNL - OPO

2 stops24h 10mDelta

Tue 7/224:20 pmOPO - HNL

2 stops32h 38mDelta

Deal found 7/2

$1,852

Mon 11/179:50 amHNL - OPO

2 stops41h 00mLufthansa

Tue 12/1612:30 pmOPO - HNL

2 stops41h 50mLufthansa

Deal found 7/2

$3,902

Best flights from Honolulu to Porto
Discover carefully curated flight deals from Honolulu to Porto that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated July 4, 2025.

Sun 10/129:40 pmHNL - OPO

2 stops31h 05mUnited Airlines

Sun 10/196:00 amOPO - HNL

2 stops45h 18mUnited Airlines

Deal found 7/2

$973

Sun 10/1210:30 pmHNL - OPO

2 stops30h 15mMultiple Airlines

Sun 10/198:40 amOPO - HNL

2 stops23h 10mMultiple Airlines

Deal found 7/3

$991

Sun 8/1710:00 pmHNL - OPO

2 stops30h 55mAmerican Airlines

Sun 8/248:15 amOPO - HNL

2 stops24h 19mAmerican Airlines

Deal found 7/3

$1,029

Fri 7/187:00 amHNL - OPO

2 stops24h 10mDelta

Tue 7/224:20 pmOPO - HNL

2 stops32h 38mDelta

Deal found 7/2

$1,852

Mon 11/179:50 amHNL - OPO

2 stops41h 00mLufthansa

Tue 12/1612:30 pmOPO - HNL

2 stops41h 50mLufthansa

Deal found 7/2

$3,902

Last-minute flights from Honolulu to Porto
Discover last-minute flight deals from Honolulu to Porto. Data last updated July 4, 2025 and is based on user searches.

Fri 7/187:00 amHNL - OPO

2 stops24h 10mDelta

Tue 7/224:20 pmOPO - HNL

2 stops32h 38mDelta

Deal found 7/2

$1,852

Sun 8/179:40 pmHNL - OPO

2 stops24h 55mUnited Airlines

Sun 8/2411:20 amOPO - HNL

2 stops39h 01mUnited Airlines

Deal found 7/3

$1,002

Sun 8/1710:00 pmHNL - OPO

2 stops30h 55mAmerican Airlines

Sun 8/248:15 amOPO - HNL

2 stops24h 19mAmerican Airlines

Deal found 7/3

$1,029

Sun 8/1710:05 pmHNL - OPO

2 stops24h 30mMultiple Airlines

Sat 8/233:05 amOPO - HNL

2 stops28h 45mMultiple Airlines

Deal found 7/3

$1,285

One-way flights from Honolulu to Porto
Search for one-way flight options from Honolulu to Porto. Find affordable one-way fares based on user searches. Data last updated July 4, 2025.

Tue 10/78:36 pmHNL - OPO

2 stops38h 14mMultiple Airlines

Deal found 7/3

$411

Mon 10/138:05 pmHNL - OPO

2 stops26h 40mUnited Airlines

Deal found 7/3

$568

Sun 10/1210:05 pmHNL - OPO

2 stops50h 25mAir Canada

Deal found 7/3

$584

Cheapflights Fare Finder

Use the filters below to find and compare flights from Honolulu to Porto that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

HonoluluPorto

HNL - OPO

HNLOPO

Honolulu

Sun 10/12

9:40 pm-3:45 pm

2 stops31h 05m

Porto

Sun 10/19

6:00 am-4:18 pm

2 stops45h 18m

$973

HonoluluPorto

HNL - OPO

HNLOPO

Honolulu

Sun 10/12

10:30 pm-3:45 pm

2 stops30h 15m

Porto

Sun 10/19

8:40 am-8:50 pm

2 stops23h 10m

$991

HonoluluPorto

HNL - OPO

HNLOPO

Honolulu

Sun 8/17

10:00 pm-3:55 pm

2 stops30h 55m

Porto

Sun 8/24

8:15 am-9:34 pm

2 stops24h 19m

$1,029

HonoluluPorto

HNL - OPO

HNLOPO

Honolulu

Fri 7/18

7:00 am-6:10 pm

2 stops24h 10m

Porto

Tue 7/22

4:20 pm-1:58 pm

2 stops32h 38m

$1,852

HonoluluPorto

HNL - OPO

HNLOPO

Honolulu

Mon 11/17

9:50 am-12:50 pm

2 stops41h 00m

Porto

Tue 12/16

12:30 pm-8:20 pm

2 stops41h 50m

$3,902

HonoluluPorto

HNL - OPO

HNLOPO

Honolulu

Tue 10/7

8:36 pm-9:50 pm

2 stops38h 14m

$411

HonoluluPorto

HNL - OPO

HNLOPO

Honolulu

Mon 10/13

8:05 pm-9:45 am

2 stops26h 40m

$568

HonoluluPorto

HNL - OPO

HNLOPO

Honolulu

Sun 10/12

10:05 pm-11:30 am

2 stops50h 25m

$584

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/3

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

Read reviews from past customers who have flown Delta, United Airlines, and American 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.

Delta

8.0

Very good

7,982 reviews

Reviews

1 / 20

10.0

Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

Delta

8.0

Very good

7,982 reviews

Delta

8.0

Very good

7,982 reviews

Reviews

1 / 20

10.0

Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

United Airlines

7.4

Good

8,844 reviews

Delta

8.0

Very good

7,982 reviews

Reviews

1 / 20

10.0

Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

American Airlines

7.2

Good

10,000 reviews

Delta

8.0

Very good

7,982 reviews

Reviews

1 / 20

10.0

Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

Air Canada

7.1

Good

9,681 reviews

Delta

8.0

Very good

7,982 reviews

Reviews

1 / 20

10.0

Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

Lufthansa

6.8

Okay

7,207 reviews

Delta

8.0

Very good

7,982 reviews

Reviews

1 / 20

10.0

Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

Related info for your journey

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 $1,033). 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

Aveiro

Coimbra

Matosinhos

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Other flights to Porto

Top airline flying from Honolulu to Porto

Airline	Cheapest	Average	Flexibility	On-time
Delta	Cheapest$757	Average$1,053	FlexibilityNo cancel fee	On-timeN/A

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$411+ 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 10/7. Fares are subject to change and may not be available on all flights or dates of travel.

Find cheap flights from Honolulu to Porto with Cheapflights

1. Tell us where you want to go

2. Select your favorite providers

3. Compare prices and book

Cheap flight deals from Honolulu to Porto

Round-trip from

One-way from

Find flight deals from Honolulu to Porto

Cheapest flights from Honolulu to PortoExplore 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 July 4, 2025.

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 July 4, 2025.

Cheapflights Fare Finder

Use the filters below to find and compare flights from Honolulu to Porto that are best for you.

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.

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 July 4, 2025.

Read reviews from past customers who have flown Delta, United Airlines, and American 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.

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.

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

How can I find direct flights from Honolulu to Porto?

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

What is the cheapest month to book a flight from Honolulu to Porto?

Traveling to a place near Honolulu?

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Honolulu to Porto

See prices for flight routes from nearby airports that may be better suited for you.

Top airline flying from Honolulu to Porto

100% Free

Book with Flexibility

Travel Smart

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 July 4, 2025.