HNL - OPO

$463 Find Cheap Flights from Honolulu to Porto - Compare and Save

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Honolulu to Porto departing on 7/18. 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, 0 bags

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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Everything you should know

Cheapest round-trip
$714
Lufthansa
Sun 10/25Fri 11/27
HNL - OPO • 2 stops
Cheapest one-way
$463
United Airlines
Sat 7/18
HNL - OPO • 2 stops
Top airlines
Lufthansa
Cheapest • from $714 (round-trip)
United Airlines
Best reviews • 7.4 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
Nonstop flights
Not available
There are currently no direct flights between Honolulu and Porto. You'll need at least 2 connections.
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We hope you love your trip to Porto!
Flight Deals
Booking Insights
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

Sun, Oct 25 - Fri, Nov 27
Lufthansa Logo
10:30 pm - 10:25 pm
HNL
-
OPO
37h 55m
2 stops
Lufthansa Logo
6:00 am - 9:33 pm
OPO
-
HNL
25h 33m
2 stops
$714Lufthansa
Sun, Oct 25 - Fri, Nov 27
Lufthansa Logo
10:30 pm - 10:25 pm
HNL
-
OPO
37h 55m
2 stops
Lufthansa Logo
6:00 am - 9:33 pm
OPO
-
HNL
25h 33m
2 stops
$715Lufthansa
Sun, Oct 25 - Fri, Nov 27
United Airlines Logo
9:50 pm - 9:30 am
HNL
-
OPO
25h 40m
2 stops
United Airlines Logo
12:35 pm - 2:14 pm
OPO
-
HNL
35h 39m
1 stop
$748United Airlines
Sun, Oct 25 - Fri, Nov 27
United Airlines Logo
9:50 pm - 9:30 am
HNL
-
OPO
25h 40m
2 stops
United Airlines Logo
12:35 pm - 2:14 pm
OPO
-
HNL
35h 39m
1 stop
$826United Airlines
Tue, Jul 21 - Tue, Jul 28
United Airlines Logo
10:53 pm - 9:45 am
HNL
-
OPO
23h 52m
2 stops
United Airlines Logo
12:35 pm - 12:20 pm
OPO
-
HNL
34h 45m
2 stops
$939United Airlines
Sun, Aug 2 - Mon, Aug 10
United Airlines Logo
7:50 pm - 9:45 am
HNL
-
OPO
26h 55m
2 stops
United Airlines Logo
12:35 pm - 1:28 pm
OPO
-
HNL
35h 53m
2 stops
$1,072United Airlines
Sun, Aug 2 - Mon, Aug 10
United Airlines Logo
10:53 pm - 7:00 am
HNL
-
OPO
45h 07m
3 stops
United Airlines Logo
9:00 am - 1:28 pm
OPO
-
HNL
39h 28m
2 stops
$1,075United Airlines
Tue, Jul 21 - Tue, Jul 28
United Airlines Logo
4:00 pm - 9:45 am
HNL
-
OPO
30h 45m
2 stops
United Airlines Logo
12:35 pm - 12:20 pm
OPO
-
HNL
34h 45m
2 stops
$1,080United Airlines
Tue, Jul 21 - Tue, Jul 28
United Airlines Logo
7:40 pm - 7:00 am
HNL
-
OPO
24h 20m
2 stops
United Airlines Logo
9:00 am - 12:20 pm
OPO
-
HNL
38h 20m
2 stops
$1,083United Airlines
Sun, Aug 2 - Mon, Aug 10
KLM Logo
3:50 pm - 10:30 am
HNL
-
OPO
31h 40m
1 stop
KLM Logo
8:00 pm - 9:20 pm
OPO
-
HNL
36h 20m
2 stops
$1,335KLM
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.

Which airlines provide the cheapest flights from Honolulu to Porto?

The cheapest round-trip price for the route for each airline clicked by KAYAK users in the last 5 days.

In the past 5 days, the cheapest round-trip tickets from Honolulu to Porto were found on Lufthansa ($714) and United Airlines ($748).

Find deals

Good to know

Cheapest flight$463
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 5 days, the lowest price for a flight from Honolulu to Porto was $463 for a one-way ticket and $714 for a round-trip.

  • 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 is the only airline alliance operating flights between Honolulu and Porto.

  • 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 9865 reviews
7.3Comfort
6.6Food
7.7Boarding
7.1Entertainment
8.1Crew
Airline reviews

We used Kayak to reserve our tickets and specifically checked the luggage option which was a more expensive option. When we arrived at the terminal we had to pay an extra $90 per suitcase for the three passengers. This has been a pattern for the past 3 years. Why charge for a more expensive luggage option, and the ticket price not include luggage?

6.0 GoodRobert, Jun 2026
MIA - FRA
Read more United Airlines reviews

We used Kayak to reserve our tickets and specifically checked the luggage option which was a more expensive option. When we arrived at the terminal we had to pay an extra $90 per suitcase for the three passengers. This has been a pattern for the past 3 years. Why charge for a more expensive luggage option, and the ticket price not include luggage?

They delayed the flight 3 hours because it wasn't full they moved us to 5 different gates probably the worst airline ever not even spirit is this bad.

Very easy ! Use the kiosk and bag drop and right to security within 10 min

Checking bag at terminal was horrible. No agents to check us in and only 1 kiosk working. Boarding went ok. Crew onboard was very scattered rained. Missed our row while serving and then didn’t see them hardly again.

Crew was amazing, takeoff wonderful. The bathroom was disgusting from before takeoff the odor made the flight uncomfortable as you could smell the bathroom from the center of the plane where we were sitting. Smelled like raw sewage. My daughter was throwing up as we landed due to the smell and horrible turbulence as we approached Newark.

Airline tickets are not cheap. You expect reliable competent service. Thanks to canceled flights and botched transfers we arrived at our destination two days late. This is not acceptable

Horrible! Several delays and then was cancelled! I spent over 24 hours in the airport and was unable to get a hotel or food voucher.

The entertainment they offer could use some games, and maybe they could add some cookies to the snack menu. And the automated messages are a bit repetitive. But it was comfortable temperature wise and the seats were comfortable. The crew is very polite and helpful

The entertainment is a bit limited, it would be better if they added some games to play besides the movies and tv shows. But the seats are comfortable and the crew is polite

This planes staff was top tier. Everything went great and had a great flight home.

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

Information on your arrival and departure airports

Honolulu (HNL)
Porto (OPO)