HNL - OPO

$364 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 8/17. 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
$779
Air Canada
Mon 8/17Wed 8/26
HNL - OPO • 2 stops
Top airlines
Air Canada
Cheapest • from $779 (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

Mon, Aug 17 - Wed, Aug 26
Air Canada Logo
9:50 pm - 7:00 am
HNL
-
OPO
46h 10m
2 stops
Air Canada Logo
2:25 pm - 7:48 pm
OPO
-
HNL
40h 23m
2 stops
$779Air Canada
Mon, Aug 17 - Wed, Aug 26
Air Canada Logo
9:50 pm - 7:00 am
HNL
-
OPO
46h 10m
2 stops
Air Canada Logo
2:25 pm - 1:06 pm
OPO
-
HNL
33h 41m
3 stops
$799Air Canada
Fri, Apr 17 - Sat, May 9
Multiple Airlines Logo
7:00 am - 11:25 pm
HNL
-
OPO
29h 25m
2 stops
Multiple Airlines Logo
8:40 am - 10:04 pm
OPO
-
HNL
24h 24m
2 stops
$837Multiple Airlines
Mon, Aug 17 - Wed, Aug 26
Delta Logo
3:35 pm - 10:30 am
HNL
-
OPO
31h 55m
1 stop
Delta Logo
5:00 am - 8:47 pm
OPO
-
HNL
26h 47m
2 stops
$964Delta
Wed, Apr 15 - Sun, May 10
United Airlines Logo
7:40 pm - 3:45 pm
HNL
-
OPO
33h 05m
2 stops
United Airlines Logo
6:00 am - 10:04 pm
OPO
-
HNL
27h 04m
2 stops
$996United Airlines
Fri, May 8 - Sat, May 23
Delta Logo
7:00 am - 10:00 pm
HNL
-
OPO
28h 00m
2 stops
Delta Logo
5:55 am - 9:01 pm
OPO
-
HNL
26h 06m
2 stops
$1,063Delta
Wed, Apr 15 - Sun, May 10
United Airlines Logo
7:40 pm - 3:45 pm
HNL
-
OPO
33h 05m
2 stops
United Airlines Logo
6:00 am - 7:49 pm
OPO
-
HNL
72h 49m
3 stops
$1,102United Airlines
Wed, Jul 22 - Tue, Jul 28
Multiple Airlines Logo
9:55 pm - 7:10 am
HNL
-
OPO
46h 15m
2 stops
Multiple Airlines Logo
12:15 pm - 8:40 pm
OPO
-
HNL
43h 25m
2 stops
$1,107Multiple Airlines
Fri, May 8 - Sat, May 23
Delta Logo
7:00 am - 10:00 pm
HNL
-
OPO
28h 00m
2 stops
Delta Logo
5:55 am - 9:01 pm
OPO
-
HNL
26h 06m
2 stops
$1,113Delta
Wed, Jul 22 - Tue, Jul 28
United Airlines Logo
9:40 pm - 7:10 am
HNL
-
OPO
46h 30m
2 stops
United Airlines Logo
12:15 pm - 1:57 pm
OPO
-
HNL
36h 42m
3 stops
$1,122United 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 ($779) and Delta ($964).

Find deals

Good to know

Cheapest flight$779
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 $364 for a one-way ticket and $779 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 9462 reviews
7.3Comfort
6.6Food
7.7Boarding
8.1Crew
7.1Entertainment
Airline reviews

No seat back entertainment. And app had a hard time getting entertainment loaded.

8.0 ExcellentStephanie, Mar 2026
DEN - CUN
Read more United Airlines reviews

No seat back entertainment. And app had a hard time getting entertainment loaded.

ticket agent lady wás very helpful , she arranged wheel chair for my elderly mother

Didn't make the flight because the first leg of my flight was canceled and the next leg was already booked.

My flight was canceled a few hours before boarding. I was rebooked on Copa airlines and missed an important meeting .

Good quick flight on a small but comfortable plane. I'm 6'3 and had plenty of space.

Experience was great - no complaints. Took off on time, landed early. Got to the gate relatively quickly - took a little bit of extra time to deplane but nothing excessive.

Business class seats felt very cramped compared to other airlines.

Economy plus was so cramped I could not use my laptop. It was beyond bad.

OK, we were delayed and had to de plane and reboard.

United is one airline which regardless of how many separate United tickets in existence, if one flight breaks down, the airline will take care of all the flights.

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

Information on your arrival and departure airports

Honolulu (HNL)
Porto (OPO)