HNL - OPO

$737 Find Cheap Flights from Honolulu to Porto

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 7/31. 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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Flights 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 12 - Sun, Oct 19
United Airlines Logo
10:30 pm - 3:45 pmHNL-OPO
30h 15m2 stops
United Airlines Logo
6:00 am - 4:18 pmOPO-HNL
45h 18m2 stops
$972United Airlines
Find Deal
Sun, Oct 12 - Sun, Oct 19
United Airlines Logo
8:00 am - 3:45 pmHNL-OPO
44h 45m2 stops
United Airlines Logo
6:00 am - 4:18 pmOPO-HNL
45h 18m2 stops
$988United Airlines
Find Deal
Sun, Oct 12 - Sat, Oct 18
KLM Logo
7:00 am - 3:30 pmHNL-OPO
21h 30m2 stops
KLM Logo
4:20 pm - 7:50 pmOPO-HNL
38h 30m2 stops
$1,109KLM
Find Deal
Tue, Jul 15 - Tue, Jul 22
Air Canada Logo
10:05 pm - 9:20 amHNL-OPO
24h 15m2 stops
Air Canada Logo
6:00 am - 8:50 pmOPO-HNL
25h 50m2 stops
$1,175Air Canada
Find Deal
Mon, Sep 1 - Sun, Sep 14
Air Canada Logo
10:05 pm - 9:20 amHNL-OPO
48h 15m2 stops
Air Canada Logo
11:20 am - 6:33 pmOPO-HNL
42h 13m2 stops
$1,236Air Canada
Find Deal
Wed, Jul 30 - Wed, Aug 6
British Airways Logo
5:36 pm - 7:35 amHNL-OPO
50h 59m2 stops
British Airways Logo
8:15 am - 9:34 pmOPO-HNL
24h 19m2 stops
$1,274British Airways
Find Deal
Wed, Jul 30 - Wed, Aug 6
United Airlines Logo
11:00 pm - 7:05 amHNL-OPO
21h 05m2 stops
United Airlines Logo
6:00 am - 2:04 pmOPO-HNL
43h 04m3 stops
$1,304United Airlines
Find Deal
Wed, Jul 30 - Wed, Aug 6
United Airlines Logo
9:40 pm - 3:45 pmHNL-OPO
31h 05m2 stops
United Airlines Logo
12:05 pm - 9:28 pmOPO-HNL
44h 23m2 stops
$1,344United Airlines
Find Deal
Thu, Jul 31 - Thu, Aug 7
 Logo
10:05 pm - 6:30 pmHNL-OPO
33h 25m2 stops
 Logo
12:10 pm - 11:17 amOPO-HNL
34h 07m2 stops
$1,375
Find Deal
Mon, Sep 1 - Sun, Sep 14
 Logo
7:40 am - 6:15 pmHNL-OPO
23h 35m2 stops
 Logo
5:45 pm - 1:10 pmOPO-HNL
30h 25m1 stop
$1,535
Find Deal
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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 Monday. 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$737
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 $737 for a one-way ticket and $972 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, SkyTeam, and oneworld are the airline alliances operating flights between Honolulu and Porto, with Star Alliance 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.
8.0
DeltaOverall score based on 7965 reviews
7.9Entertainment
7.3Food
7.9Comfort
8.5Crew
8.2Boarding
Airline reviews

I like for how they process during check in. It was very smoothly.

10.0 ExcellentAbdulla, Jun 2025CMH - JFK
Read more Delta reviews

I like for how they process during check in. It was very smoothly.

The flight was scheduled for 2:30 PM. Early in the morning we got a text message saying the flight was delayed and rescheduled for 3:00 PM. We got to the airport with that in mind. Then we got a message during check-in at the flight was rescheduled again for 2:30 PM. We almost missed our flight. In fact, our bags Were told that they would not make it. At the end, everything worked out. But it is very stressful.

Overall, aside from the baggage issue, it was as good as one expects.

Most aspects were good however if they assign boarding zones they ought to enforce them or why bother? My luggage from SAN-JFK-MAD was lost in NY so I without my main bag for two days upon arrival in Spain. They were helpful in tracking it and eventually delivered it to my hotel. The flub was because of a delay upon arrival in NYC. I had booked 2 1/2 hours between flights but we had to hold on the taxiway for an hour after landing while waiting for a clear gate which likely caused the baggage error.

I want to single out flight attendant Mitch who was in the Premium Economy section. When my wife’s hearing aide dropped through the cushion under the seat he was able to locate it and return it to her. Food was a different matter. Dinner was fine. Breakfast was another matter. They had a yogurt dish that the ran out of and the alternative was not very good according to those we talked to.

Excellent check-in. Crew was good. Excellent communication from flight deck.

Great overall. There was a bit of turbulence so they could only serve water because too much turbulence for the carts. Was glad they prioritized safety though

Excellent flight, the planes were newer, they did a nice job with boarding, great service overall.

Flight was delayed long enough that I was misding my connecting flight. The agents could not get me on a comparable flight, nor could they get me s Main Cabin seat I had paid for, nor could they get me on a comparable connecting flight. The gate agent would not issue meal vouchers, even though I was delayed over six hours! I had to spend over an hour and 15 minutes with customer service on the phone to See if they could get me on a better flight and get a meal voucher. Customer service was not helpful enough in trying to find alternate flights and it Ended up taking me 24 hours for a 12 hour trip!! Delta does not provide upgrades NOR will they even give you a pass for a few hours to their lounge. They claim that they do not issue daily passes to their lounge anymore. I call BS since this would be no extra cost to them to provide excellent customer service and give you a few hours to relax in comfort when you’re sitting in a crowded airport and your flight has been screwed up for that many hours.

Great service. Flight was delayed while we sat on the runway for a couple of hours. Weather related. Staff made is very bearable. The steward servicing the first class cabin was exceptional. Thank you! 💗

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

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