HNL - OPO

$705 Find Cheap Flights from Honolulu to Porto

This is the cheapest round-trip flight price found by a KAYAK user in the last 72 hours by searching for a flight from Honolulu to Porto departing on 11/10. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy

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

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Honolulu to Porto, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Honolulu to Porto, as well as popular online travel agencies
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Flight Deals

Cheap Flights from Honolulu to Porto (HNL-OPO)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Honolulu to Porto that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Honolulu to Porto

Mon, Nov 10 - Mon, Nov 17
Multiple Airlines Logo
11:30 pm - 2:45 pmHNL-OPO
29h 15m2 stops
Multiple Airlines Logo
12:05 pm - 10:27 pmOPO-HNL
44h 22m2 stops
$705Multiple Airlines
Find Deal
Thu, Mar 5 - Mon, Mar 9
Lufthansa Logo
10:55 pm - 10:25 pmHNL-OPO
37h 30m2 stops
Lufthansa Logo
4:15 pm - 9:28 pmOPO-HNL
39h 13m2 stops
$824Lufthansa
Find Deal
Mon, Nov 10 - Mon, Nov 17
Multiple Airlines Logo
9:35 pm - 11:00 pmHNL-OPO
39h 25m2 stops
Multiple Airlines Logo
6:40 pm - 2:32 pmOPO-HNL
29h 52m1 stop
$1,160Multiple Airlines
Find Deal
Tue, Nov 18 - Wed, Dec 17
KLM Logo
5:00 pm - 10:30 amHNL-OPO
31h 30m2 stops
KLM Logo
11:25 am - 8:28 pmOPO-HNL
43h 03m2 stops
$3,794KLM
Find Deal
Tue, Nov 18 - Wed, Dec 17
KLM Logo
11:50 pm - 3:25 pmHNL-OPO
29h 35m2 stops
KLM Logo
11:25 am - 8:28 pmOPO-HNL
43h 03m2 stops
$3,803KLM
Find Deal
Mon, Dec 8 - Mon, Jan 5
British Airways Logo
7:50 pm - 8:00 pmHNL-OPO
38h 10m2 stops
British Airways Logo
8:40 pm - 1:50 pmOPO-HNL
51h 10m2 stops
$3,861British Airways
Find Deal
Wed, Nov 26 - Sun, Dec 28
United Airlines Logo
11:30 pm - 2:45 pmHNL-OPO
29h 15m2 stops
United Airlines Logo
6:00 am - 10:30 pmOPO-HNL
26h 30m2 stops
$4,155United Airlines
Find Deal
Wed, Nov 26 - Sun, Dec 28
United Airlines Logo
11:30 pm - 2:45 pmHNL-OPO
29h 15m2 stops
United Airlines Logo
6:00 am - 3:48 pmOPO-HNL
43h 48m2 stops
$4,171United Airlines
Find Deal
Thu, Nov 6 - Mon, Dec 8
American Airlines Logo
10:55 pm - 11:45 amHNL-OPO
26h 50m3 stops
American Airlines Logo
4:40 pm - 1:46 pmOPO-HNL
31h 06m2 stops
$6,603American Airlines
Find Deal
Tue, Nov 18 - Wed, Dec 17
American Airlines Logo
10:55 pm - 11:45 amHNL-OPO
26h 50m3 stops
American Airlines Logo
8:40 pm - 1:34 pmOPO-HNL
26h 54m2 stops
$8,278American Airlines
Find Deal

Everything you should know

Top airlines
Lufthansa
Cheapest • from $824 (round-trip)
United Airlines
Best reviews • 7.4 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
Cheapest round-trip
$705
Multiple Airlines
Mon 11/10Mon 11/17
HNL - OPO • 2 stops
Cheapest one-way
Multiple Airlines
Tue 9/16
HNL - OPO • multi-stop
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KAYAK searches 100s of sites at once to find you the best travel deals.
We hope you love your trip to Porto!
Booking Insights

KAYAK's insights & trends for Honolulu to Porto flights

Get data-powered insights and trends into flights from Honolulu to Porto to help you find the cheapest flights, the best time to fly and much more.

What’s the cheapest day of the week to fly from Honolulu to Porto?

The average price of all round-trip flights from Honolulu to Porto clicked on KAYAK for each day over the last 12 months.

Your flight ticket price will generally be cheaper if you fly to Porto on a Sunday and more expensive on a Wednesday. On your return trip to Honolulu, you should consider flying back on a Friday, and avoid Tuesdays for better deals.

Good to know

Cheapest flight$705
Flight from Honolulu to Porto

When to book flights from Honolulu to Porto

Are your dates flexible? Find out the best times to travel from Honolulu to Porto based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking flights from Honolulu to Porto

  • What is the cheapest flight from Honolulu to Porto?

    In the last 3 days, the lowest price for a flight from Honolulu to Porto was $705 for a round-trip ticket.

  • Do I need a passport to fly between Honolulu and Porto?

    A passport is required to fly from Honolulu to Porto.

  • Which airports will I be using when flying from Honolulu to Porto?

    Honolulu and Porto are both served by 1 main airport. You will leave Honolulu from Honolulu and will be arriving at Porto.

  • Which aircraft models fly most regularly from Honolulu to Porto?

    We unfortunately don’t have that data for this specific route.

  • Which airline alliances offer flights from Honolulu to Porto?

    Star Alliance, SkyTeam, and oneworld are the airline alliances operating flights between Honolulu and Porto, with oneworld being the most commonly used for this route.

  • How does KAYAK find such low prices on flights from Honolulu to Porto?

    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 Honolulu to Porto.

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

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

  • What is the Hacker Fare option on flights from Honolulu to Porto?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Porto with an airline and back to Honolulu with another airline. Booking your flights between Honolulu and OPO can sometimes prove cheaper using this method.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Honolulu to Porto?

    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 to Porto from Honolulu up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Reviews of the top airline flying from Honolulu to Porto

 
See real verified KAYAK customer reviews for airlines flying from Honolulu to Porto. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. 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 Honolulu to Porto? 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.
7.4
United AirlinesOverall score based on 8929 reviews
7.3Comfort
6.6Food
8.1Crew
7.1Entertainment
7.7Boarding
Airline reviews

We had to deboard 2 times due to maintenance issues. They changed the plane, and then we got deviated to LAX due to maibtenance issues on the other plane, had to sleep at LAX and los a full day.

2.0 MediocreAnonymous, Sep 2025SFO - MEX
Read more United Airlines reviews

We had to deboard 2 times due to maintenance issues. They changed the plane, and then we got deviated to LAX due to maibtenance issues on the other plane, had to sleep at LAX and los a full day.

Everything was good, except the seats in economy were so close together, you could barely get out when the seat in front of your was reclined. If the airlines keep jamming in more and more seats, it will become intolerable. I will look for another airline that considers customer comfort and does not keep adding more rows of seats for more profit.

The newer screen was super cool and had the option to watch many different shows or movies. Crew was polite and helpful. However again, many children screaming bloody murder and kicking my seat, and parents doing nothing about it as usual.

Flight was good and crew was super polite. However, there were around 5 kids screaming the WHOLE 2 hours. I understand kids have to come but parents need to do something to control their children. They make the experience terrible, especially after finishing 16 hour shifts at the hospital I needed some sleep, which I did not get.

IAD with the archaic people movers is just a place to be avoided.

Great service on board. Boarding a bit slow due to process. Food was pretty average.

Tastless food and too obvious lack of enthusiasm for service in the economy vesus business class

All of the United employees I interacted with were professional and courteous. The aircraft was clean, the food on the flight was good. No complaints here.

I had no checked baggage but was required to hand over carry on baggage at the door of the plane. There was a lot of overboard space in the plane and I was one of the last ones. I ran to get my carry on but it was gone. I was given back at the plane door in Toronto, so the wait was not as long as it would have been at the carousel.

Armrest controller on my seat 35D and nextbooennseat 35E did not work right. Hard to press buttons to recognize and 35D had constantnpressure either upmost down somit was nearly impossible to make selections. .

Everything you need to know for your flight from Honolulu to Porto

Information on your arrival and departure airports

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