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Cheap flights from Honolulu to Porto from $230

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Honolulu to Porto departing on 5/4. 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.
Delta Logo
5:15 pm - 10:30 am
HNL
-
OPO
31h 15m
2 stops
Delta Logo
5:00 am - 9:28 pm
OPO
-
HNL
26h 28m
2 stops
$655Delta
Tue, Feb 24 - Tue, Mar 3
United Airlines Logo
8:45 pm - 9:30 am
HNL
-
OPO
26h 45m
2 stops
United Airlines Logo
12:30 pm - 9:00 pm
OPO
-
HNL
42h 30m
2 stops
$724United Airlines
Thu, Feb 26 - Mon, Mar 2
SWISS Logo
7:00 am - 6:30 pm
HNL
-
OPO
24h 30m
2 stops
SWISS Logo
7:20 pm - 9:38 pm
OPO
-
HNL
37h 18m
2 stops
$806SWISS
Fri, May 8 - Sat, May 23
Multiple Airlines Logo
7:30 am - 4:00 pm
HNL
-
OPO
21h 30m
2 stops
Multiple Airlines Logo
8:20 am - 9:35 pm
OPO
-
HNL
24h 15m
2 stops
$877Multiple Airlines
Fri, May 1 - Sun, May 10
Iberia Logo
7:00 am - 8:00 pm
HNL
-
OPO
26h 00m
2 stops
Iberia Logo
8:20 am - 9:35 pm
OPO
-
HNL
24h 15m
2 stops
$882Iberia
Fri, May 1 - Sun, May 10
Multiple Airlines Logo
3:01 pm - 7:40 am
HNL
-
OPO
29h 39m
2 stops
Multiple Airlines Logo
8:40 pm - 11:39 pm
OPO
-
HNL
37h 59m
2 stops
$892Multiple Airlines
Fri, May 8 - Sat, May 23
United Airlines Logo
3:15 pm - 6:50 am
HNL
-
OPO
52h 35m
2 stops
United Airlines Logo
11:15 am - 7:13 pm
OPO
-
HNL
42h 58m
2 stops
$901United Airlines
Mon, Jun 22 - Tue, Jun 30
Multiple Airlines Logo
3:01 pm - 7:40 am
HNL
-
OPO
29h 39m
2 stops
Multiple Airlines Logo
4:40 pm - 10:05 am
OPO
-
HNL
52h 25m
2 stops
$958Multiple Airlines
Fri, May 8 - Sat, May 23
Multiple Airlines Logo
7:30 am - 4:00 pm
HNL
-
OPO
21h 30m
2 stops
Multiple Airlines Logo
8:40 pm - 11:39 pm
OPO
-
HNL
37h 59m
2 stops
$994Multiple Airlines
Fri, May 8 - Sat, May 23
KLM Logo
3:35 pm - 10:30 am
HNL
-
OPO
31h 55m
1 stop
KLM Logo
4:25 pm - 7:21 pm
OPO
-
HNL
37h 56m
2 stops
$1,642KLM
Mon, Jun 22 - Tue, Jun 30

United Airlines flights from Honolulu to Porto

Our best United Airlines deals on Honolulu to Porto flight tickets
United Airlines
Feb 26
HNL8:45 pmHonolulu
26h 45m
2 stops
OPO9:30 amPorto
Mar 2
OPO12:30 pmPorto
42h 30m
2 stops
HNL9:00 pmHonolulu
$724
United Airlines
Jun 22
HNL3:15 pmHonolulu
52h 35m
2 stops
OPO6:50 amPorto
Jun 30
OPO11:15 amPorto
42h 58m
2 stops
HNL7:13 pmHonolulu
$901

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 February 8, 2026.
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

Tue 2/24

5:15 pm-10:30 am

2 stops31h 15m

Porto

Tue 3/3

5:00 am-9:28 pm

2 stops26h 28m

$655

HonoluluPorto

HNL - OPO

HNLOPO

Honolulu

Thu 2/26

8:45 pm-9:30 am

2 stops26h 45m

Porto

Mon 3/2

12:30 pm-9:00 pm

2 stops42h 30m

$724

HonoluluPorto

HNL - OPO

HNLOPO

Honolulu

Fri 5/8

7:00 am-6:30 pm

2 stops24h 30m

Porto

Sat 5/23

7:20 pm-9:38 pm

2 stops37h 18m

$806

HonoluluPorto

HNL - OPO

HNLOPO

Honolulu

Fri 5/1

7:30 am-4:00 pm

2 stops21h 30m

Porto

Sun 5/10

8:20 am-9:35 pm

2 stops24h 15m

$877

HonoluluPorto

HNL - OPO

HNLOPO

Honolulu

Fri 5/1

7:00 am-8:00 pm

2 stops26h 00m

Porto

Sun 5/10

8:20 am-9:35 pm

2 stops24h 15m

$882

HonoluluPorto

HNL - OPO

HNLOPO

Honolulu

Fri 5/8

3:01 pm-7:40 am

2 stops29h 39m

Porto

Sat 5/23

8:40 pm-11:39 pm

2 stops37h 59m

$892

HonoluluPorto

HNL - OPO

HNLOPO

Honolulu

Mon 6/22

3:15 pm-6:50 am

2 stops52h 35m

Porto

Tue 6/30

11:15 am-7:13 pm

2 stops42h 58m

$901

HonoluluPorto

HNL - OPO

HNLOPO

Honolulu

Fri 5/8

3:01 pm-7:40 am

2 stops29h 39m

Porto

Sat 5/23

4:40 pm-10:05 am

2 stops52h 25m

$958

HonoluluPorto

HNL - OPO

HNLOPO

Honolulu

Fri 5/8

7:30 am-4:00 pm

2 stops21h 30m

Porto

Sat 5/23

8:40 pm-11:39 pm

2 stops37h 59m

$994

HonoluluPorto

HNL - OPO

HNLOPO

Honolulu

Mon 6/22

3:35 pm-10:30 am

1 stop31h 55m

Porto

Tue 6/30

4:25 pm-7:21 pm

2 stops37h 56m

$1,642

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 13 resultsSorted by cheapest first
1
2

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

21h 30m

Direct flights

None
The fastest flight from Honolulu to Porto takes 21h 30m
There are no direct flights from Honolulu to Porto. There are no popular flight routes from Honolulu to Porto.
Search flight deals

  • 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 21h 30m.

  • 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 $588Free CancellationRating
7.4
9,250 reviews
Search United Airlines flights

  • How do I get Price Alerts for flights from Honolulu to Porto?

    Search flight deals from Honolulu to Porto. While viewing offers you’ll have the option to create a Price Alert.

  • How can I save money on flights from Honolulu to Porto with momondo?

    Leverage our AI within our “Price Forecast” tool, which predicts if it’s better to book now or wait until prices decrease. You can strategically pick the best days to fly and save money on your trip by using our “Price Calendar” tool. “Explore” shows an overview of how much it costs to fly to anywhere from a selected city or airport. Our “Discover” content is a great option for travel inspiration and money-saving tips, while “Price Alerts” will update you when prices change, so you can book when fares are right.

  • How does momondo find its flight prices?

    We aggregate our prices from over 700+ competitors from airlines to OTAs. We operate in over 30 markets worldwide to show you a wide range of travel options.

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
Esposende
Lamego
Guimarães
Espinho
Chaves
Pinhao
Arcos de Valdevez
Viseu
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.

An easier way to manage your Porto trip

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