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Cheap flights from Honolulu to Porto from $694

This is the cheapest round-trip flight price found by a momondo user in the last 72 hours by searching for a flight from Honolulu to Porto departing on 2/4. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
0 bags

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Find the cheapest flights from Honolulu to Porto

Cheap round-trip flights

Enter your travel dates to find the best prices.
United Airlines Logo
6:05 pm - 2:45 pm
HNL
-
OPO
34h 40m2 stops
United Airlines Logo
12:30 pm - 8:55 pm
OPO
-
HNL
42h 25m2 stops
$694United Airlines
Wed, Feb 4 - Sun, Feb 8
United Airlines Logo
11:30 pm - 2:45 pm
HNL
-
OPO
29h 15m2 stops
United Airlines Logo
12:30 pm - 9:08 pm
OPO
-
HNL
42h 38m2 stops
$698United Airlines
Wed, Feb 4 - Sun, Feb 8
SWISS Logo
7:00 am - 6:30 pm
HNL
-
OPO
48h 30m2 stops
SWISS Logo
7:20 pm - 9:42 pm
OPO
-
HNL
37h 22m2 stops
$783SWISS
Fri, May 8 - Sat, May 23
SWISS Logo
7:00 am - 6:30 pm
HNL
-
OPO
48h 30m2 stops
SWISS Logo
12:15 pm - 9:42 pm
OPO
-
HNL
44h 27m2 stops
$881SWISS
Fri, May 8 - Sat, May 23

SWISS flights from Honolulu to Porto

Our best SWISS deals on Honolulu to Porto flight tickets
SWISS
May 8
HNL7:00 amHonolulu
48h 30m
2 stops
OPO6:30 pmPorto
May 23
OPO7:20 pmPorto
37h 22m
2 stops
HNL9:42 pmHonolulu
$783
Find similar
SWISS
May 8
HNL7:00 amHonolulu
48h 30m
2 stops
OPO6:30 pmPorto
May 23
OPO12:15 pmPorto
44h 27m
2 stops
HNL9:42 pmHonolulu
$881
Find similar

United Airlines flights from Honolulu to Porto

Our best United Airlines deals on Honolulu to Porto flight tickets
United Airlines
Feb 4
HNL6:05 pmHonolulu
34h 40m
2 stops
OPO2:45 pmPorto
Feb 8
OPO12:30 pmPorto
42h 25m
2 stops
HNL8:55 pmHonolulu
$694
Find similar
United Airlines
Feb 4
HNL11:30 pmHonolulu
29h 15m
2 stops
OPO2:45 pmPorto
Feb 8
OPO12:30 pmPorto
42h 38m
2 stops
HNL9:08 pmHonolulu
$698
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from Honolulu to Porto that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, momondo users made 832,500 searches. Data last updated December 23, 2025.
Use the filters below to find and compare flights from Honolulu to Porto that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

HonoluluPorto

HNL - OPO

HNLOPO

Honolulu

Wed 2/4

6:05 pm-2:45 pm

2 stops34h 40m

Porto

Sun 2/8

12:30 pm-8:55 pm

2 stops42h 25m

$694

HonoluluPorto

HNL - OPO

HNLOPO

Honolulu

Wed 2/4

11:30 pm-2:45 pm

2 stops29h 15m

Porto

Sun 2/8

12:30 pm-9:08 pm

2 stops42h 38m

$698

HonoluluPorto

HNL - OPO

HNLOPO

Honolulu

Fri 5/8

7:00 am-6:30 pm

2 stops48h 30m

Porto

Sat 5/23

7:20 pm-9:42 pm

2 stops37h 22m

$783

HonoluluPorto

HNL - OPO

HNLOPO

Honolulu

Fri 5/8

7:00 am-6:30 pm

2 stops48h 30m

Porto

Sat 5/23

12:15 pm-9:42 pm

2 stops44h 27m

$881

Flights are sorted by cheapest round-trip flights first.

Sorted by cheapest first

See travel insights to Porto from

How to get the cheapest flight ticket from Honolulu to Porto

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest day to depart on your flight to Porto?

The cheapest day to depart on your flight to Porto is on a Sunday when prices can be found for as low as $1,034. This is often the case because there is less demand to fly during this day of the week. If your travel schedule is flexible, try to avoid departing on a Wednesday because tickets tend to average around $1,052. These prices are subject to change though, so be sure to set up a Price Alert for flights to Porto.

What is the cheapest time of day to depart on your flight to Porto?

In the evening is the cheapest time of day to fly from Honolulu to Porto when you can find flight prices for as low as $1,053. Flying to Porto in the evening is an ideal time because this is during off-peak travel hours. If you have a flexible travel schedule, then try to avoid flying in the morning when prices are $1,194 on average. Flights to Porto from Honolulu in the morning are generally more expensive because this time of day is more convenient for travelers’ schedules.

When to book flights from Honolulu to Porto

Are you open to changing your travel dates? Check out the ideal times to fly from Honolulu to Porto according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Honolulu to Porto (HNL to OPO) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Honolulu to Porto

Fastest flight time

28h 46m

Direct flights

None
The fastest flight from Honolulu to Porto takes 28h 46m
There are no direct flights from Honolulu to Porto. There are no popular flight routes from Honolulu to Porto.
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  • How far is Honolulu to Porto by plane?

    Honolulu and Porto are 7686.0 mi apart from one another. A reasonable flight in good conditions will take 28h 46m.

  • When did momondo last update prices for flights from Honolulu Airport to Porto Airport?

    Prices for flights from Honolulu Airport to Porto Airport refresh daily.

  • How many operators does momondo search for flights from Honolulu Airport to Porto Airport?

  • How old do you have to be to fly from Honolulu Airport to Porto Airport?

    Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Honolulu Airport to Porto Airport.

  • What documentation or ID do you need to fly to Porto Airport?

    The travel and health documents you'll need for your trip to Porto Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Porto Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

  • What is the most popular airline from Honolulu to Porto?

Best airlines flying from Honolulu to Porto

Compare and see reviews for airlines that fly from Honolulu to Porto with momondo
Airline
Rating
Free Cancellation
Price
United AirlinesPriceFrom $662Free CancellationRating
7.4
9,105 reviews
Search United Airlines flights

Traveling to a place near Porto?

Book flights to Porto if you plan to visit one of these locations
Vila Nova de Gaia
Coimbra
Braga
Aveiro
Matosinhos
Guimarães
Esposende
Lamego
Chaves
Viseu
Espinho
Arcos de Valdevez
Pinhao
Ponte de Lima
Curia
Penafiel
Mesao Frio
Mira
Baiao

Why use momondo?

Why should I use momondo to find a flight deal from Honolulu to Porto?

momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights from Honolulu to Porto. Millions of users trust and use momondo every year so you are in good hands.

Can I find flights from Honolulu to Porto with flexible booking policies on momondo?

momondo does allow users to show only those flights to Porto from Honolulu which offer a flexible booking policy as well as other useful filters and features.

How can momondo help me find flights from Honolulu to Porto?

momondo offers useful filters to help you find the right flight. Choose specific flight times, airports or even what payment method you prefer. We have numerous options to help you book your ideal flight from Honolulu to Porto.

I’m not ready to book a flight from Honolulu to Porto right now. Can momondo alert me if prices change?

Of course. momondo tracks the price of Honolulu to Porto flights. All you need is a valid email address and we will do the rest; it is that quick and easy.

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