HNL - OPO

$725 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 10/25. 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
$725
Air Canada
Sun 10/25Fri 11/27
HNL - OPO • 2 stops
Top airlines
Air Canada
Cheapest • from $725 (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
Air Canada Logo
10:00 pm - 3:15 pm
HNL
-
OPO
31h 15m
2 stops
Air Canada Logo
6:15 am - 9:33 pm
OPO
-
HNL
25h 18m
2 stops
$725Air Canada
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 - 2:20 pm
OPO
-
HNL
35h 45m
2 stops
$731United 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
$827United Airlines
Sun, Aug 2 - Mon, Aug 10
KLM Logo
3:50 pm - 10:30 am
HNL
-
OPO
31h 40m
1 stop
KLM Logo
4:20 pm - 7:21 pm
OPO
-
HNL
38h 01m
2 stops
$1,096KLM
Sun, Aug 2 - Mon, Aug 10
Multiple Airlines Logo
3:50 pm - 10:30 am
HNL
-
OPO
31h 40m
1 stop
Multiple Airlines Logo
4:20 pm - 7:11 pm
OPO
-
HNL
37h 51m
2 stops
$1,121Multiple Airlines
Sun, Aug 2 - Mon, Aug 10
Delta Logo
9:30 pm - 10:30 am
HNL
-
OPO
26h 00m
2 stops
Delta Logo
6:30 am - 9:20 pm
OPO
-
HNL
25h 50m
2 stops
$1,138Delta
Sun, Aug 2 - Mon, Aug 10
Delta Logo
3:50 pm - 10:30 am
HNL
-
OPO
31h 40m
1 stop
Delta Logo
6:30 am - 9:20 pm
OPO
-
HNL
25h 50m
2 stops
$1,150Delta
Tue, Jun 16 - Tue, Jun 23
SWISS Logo
9:45 pm - 6:30 pm
HNL
-
OPO
33h 45m
2 stops
SWISS Logo
12:15 pm - 8:35 pm
OPO
-
HNL
43h 20m
2 stops
$1,151SWISS
Sun, Aug 2 - Mon, Aug 10
Air France Logo
9:30 pm - 10:30 am
HNL
-
OPO
26h 00m
2 stops
Air France Logo
4:20 pm - 7:11 pm
OPO
-
HNL
37h 51m
2 stops
$1,153Air France
Sun, Aug 2 - Mon, Aug 10
United Airlines Logo
7:55 pm - 6:55 am
HNL
-
OPO
24h 00m
2 stops
United Airlines Logo
9:00 am - 1:28 pm
OPO
-
HNL
39h 28m
2 stops
$1,156United Airlines
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 72 hours.

In the past 3 days, the cheapest round-trip tickets from Honolulu to Porto were found on Air Canada ($725) and United Airlines ($731).

Find deals

Good to know

Cheapest flight$725
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 $725 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 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 9690 reviews
7.1Entertainment
7.7Boarding
7.3Comfort
8.1Crew
6.6Food
Airline reviews

I didn’t have a seat assignment and my seat was very dirty on the flight from Frankfurt to Budapest.

6.0 GoodKinga, May 2026
RDU - FRA
Read more United Airlines reviews

I didn’t have a seat assignment and my seat was very dirty on the flight from Frankfurt to Budapest.

Left an hour and a half after the listed time. Up side was it had TV screens on the seat.

No screens or meal options. Freezing cold. Dirty seats. Left late.

O’hsre taxi and deboarding took 40 minutes. Needed 20 minutes extra time between connecting flights to avoid running through terminal.

Cree was organized and pleasant. Plane had good seating but as it’s a shuttle toilets hadn’t been thoroughly cleaned (eg. bins too full)

I liked that my son and I were reseated next to each other (we had different bookings). I liked that it was a directg flight and mostly on time. I liked that you provided pillows and blankets. Flight attendants were generally courteous. The messaging through wifi did not work well. The food was not good. Seats are very narrow and I felt slightly claustraphobic in the window seat.

Overall a good experience, but no wifi available for free or for purchase and we got wet from condensation or other water source during descent.

Some crew were unfriendly or in some cases just straight up rude.

Booked through Kayak Business, had a seat in middle and towards back due to booking rate, not comfortable.

Was great in general, try to respect time and excuses when slight changes have been made, appreciated!

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

Information on your arrival and departure airports

Honolulu (HNL)
Porto (OPO)