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Cheap flights from Ontario to Porto from $324

1 adult
1 adult, Economy, 0 bags

Find the cheapest flights from Ontario to Porto

Cheap round-trip flights

Enter your travel dates to find the best prices.
Delta Logo
12:16 pm - 10:30 pmONT  Ontario-OPO Porto
26h 14m2 stops Atlanta Hartsfield-Jackson Amsterdam Schiphol
Delta Logo
10:15 am - 11:49 pmOPO  Porto-ONT Ontario
21h 34m2 stops New York John F Kennedy Intl Salt Lake City
$684Delta
Thu, Nov 5 - Thu, Nov 12
Delta Logo
12:18 pm - 10:00 pmONT  Ontario-OPO Porto
25h 42m2 stops Atlanta Hartsfield-Jackson Paris Charles de Gaulle
Delta Logo
10:15 am - 10:29 pmOPO  Porto-ONT Ontario
20h 14m2 stops New York John F Kennedy Intl Salt Lake City
$722Delta
Sat, Nov 14 - Sat, Dec 5
Iberia Logo
7:00 am - 7:40 amONT  Ontario-OPO Porto
16h 40m2 stops Dallas/Fort Worth Madrid Barajas
Iberia Logo
8:40 pm - 9:41 amOPO  Porto-ONT Ontario
21h 01m2 stops Madrid Barajas Dallas/Fort Worth
$766Iberia
Tue, Feb 9 - Mon, Feb 15
Multiple Airlines Logo
12:01 pm - 5:05 pmONT  Ontario-OPO Porto
21h 04m2 stops San Francisco Kastrup Copenhagen
Multiple Airlines Logo
5:55 pm - 7:28 pmOPO  Porto-ONT Ontario
32h 33m2 stops Kastrup Copenhagen San Francisco
$791Multiple Airlines
Thu, Oct 22 - Thu, Oct 29
United Airlines Logo
7:00 am - 9:30 amONT  Ontario-OPO Porto
18h 30m2 stops Chicago O'Hare Intl Newark
United Airlines Logo
6:00 am - 6:47 pmOPO  Porto-ONT Ontario
20h 47m2 stops Frankfurt am Main Chicago O'Hare Intl
$815United Airlines
Mon, Nov 9 - Mon, Nov 23
Iberia Logo
7:00 am - 7:40 amONT  Ontario-OPO Porto
17h 40m2 stops Dallas/Fort Worth Madrid Barajas
Iberia Logo
12:25 pm - 11:45 pmOPO  Porto-ONT Ontario
19h 20m2 stops Madrid Barajas Dallas/Fort Worth
$816Iberia
Tue, Mar 16 - Mon, Mar 29
United Airlines Logo
1:29 pm - 9:30 amONT  Ontario-OPO Porto
36h 01m2 stops Denver Intl Newark
United Airlines Logo
12:30 pm - 10:13 amOPO  Porto-ONT Ontario
29h 43m2 stops Frankfurt am Main San Francisco
$817United Airlines
Sat, Nov 14 - Sat, Dec 5
Multiple Airlines Logo
12:01 pm - 11:55 pmONT  Ontario-OPO Porto
27h 54m2 stops San Francisco Munich Franz Josef Strauss
Multiple Airlines Logo
6:35 pm - 7:28 pmOPO  Porto-ONT Ontario
32h 53m3 stops Geneva Geneve-Cointrin Zurich San Francisco
$819Multiple Airlines
Thu, Nov 12 - Sun, Nov 15
United Airlines Logo
6:00 am - 9:30 amONT  Ontario-OPO Porto
19h 30m2 stops San Francisco Newark
United Airlines Logo
6:00 am - 8:38 pmOPO  Porto-ONT Ontario
22h 38m2 stops Frankfurt am Main San Francisco
$830United Airlines
Wed, Dec 2 - Sun, Dec 6
United Airlines Logo
9:25 am - 3:10 pmONT  Ontario-OPO Porto
21h 45m2 stops San Francisco Frankfurt am Main
United Airlines Logo
12:35 pm - 6:47 pmOPO  Porto-ONT Ontario
38h 12m2 stops Frankfurt am Main Chicago O'Hare Intl
$847United Airlines
Thu, Nov 5 - Thu, Nov 12

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Iberia flights from Ontario to Porto

Our best Iberia deals on Ontario to Porto flight tickets
Iberia
Feb 9
ONT7:00 amOntario
16h 40m
2 stops
OPO7:40 amPorto
Feb 15
OPO8:40 pmPorto
21h 01m
2 stops
ONT9:41 amOntario
$766
Iberia
Mar 16
ONT7:00 amOntario
17h 40m
2 stops
OPO7:40 amPorto
Mar 29
OPO12:25 pmPorto
19h 20m
2 stops
ONT11:45 pmOntario
$816
Iberia
Mar 16
ONT7:00 amOntario
17h 40m
2 stops
OPO7:40 amPorto
Mar 30
OPO8:20 amPorto
23h 25m
2 stops
ONT11:45 pmOntario
$878

British Airways flights from Ontario to Porto

Our best British Airways deals on Ontario to Porto flight tickets
British Airways
Nov 20
ONT11:59 pmOntario
35h 16m
2 stops
OPO7:15 pmPorto
Nov 27
OPO8:40 pmPorto
34h 40m
2 stops
ONT11:20 pmOntario
$1,332
British Airways
Nov 12
ONT12:42 pmOntario
20h 33m
2 stops
OPO5:15 pmPorto
Nov 15
OPO8:05 pmPorto
30h 37m
2 stops
ONT6:42 pmOntario
$1,368

momondo Fare Finder

 
Use the filters below to find and compare flights from Ontario to Porto that are best for you.

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Route

Depart

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Price

Cheapest round-trip

OntarioPorto

ONT Ontario - OPO Porto

ONTOPO

Ontario

Thu 11/5

12:16 pm-10:30 pm

2 stops26h 14m

Porto

Thu 11/12

10:15 am-11:49 pm

2 stops21h 34m

$684

OntarioPorto

ONT Ontario - OPO Porto

ONTOPO

Ontario

Sat 11/14

12:18 pm-10:00 pm

2 stops25h 42m

Porto

Sat 12/5

10:15 am-10:29 pm

2 stops20h 14m

$722

OntarioPorto

ONT Ontario - OPO Porto

ONTOPO

Ontario

Tue 2/9

7:00 am-7:40 am

2 stops16h 40m

Porto

Mon 2/15

8:40 pm-9:41 am

2 stops21h 01m

$766

OntarioPorto

ONT Ontario - OPO Porto

ONTOPO

Ontario

Thu 10/22

12:01 pm-5:05 pm

2 stops21h 04m

Porto

Thu 10/29

5:55 pm-7:28 pm

2 stops32h 33m

$791

OntarioPorto

ONT Ontario - OPO Porto

ONTOPO

Ontario

Mon 11/9

7:00 am-9:30 am

2 stops18h 30m

Porto

Mon 11/23

6:00 am-6:47 pm

2 stops20h 47m

$815
Quickest round-trip

OntarioPorto

ONT Ontario - OPO Porto

ONTOPO

Ontario

Tue 3/16

7:00 am-7:40 am

2 stops17h 40m

Porto

Mon 3/29

12:25 pm-11:45 pm

2 stops19h 20m

$816

OntarioPorto

ONT Ontario - OPO Porto

ONTOPO

Ontario

Sat 11/14

1:29 pm-9:30 am

2 stops36h 01m

Porto

Sat 12/5

12:30 pm-10:13 am

2 stops29h 43m

$817

OntarioPorto

ONT Ontario - OPO Porto

ONTOPO

Ontario

Thu 11/12

12:01 pm-11:55 pm

2 stops27h 54m

Porto

Sun 11/15

6:35 pm-7:28 pm

3 stops32h 53m

$819

OntarioPorto

ONT Ontario - OPO Porto

ONTOPO

Ontario

Wed 12/2

6:00 am-9:30 am

2 stops19h 30m

Porto

Sun 12/6

6:00 am-8:38 pm

2 stops22h 38m

$830

OntarioPorto

ONT Ontario - OPO Porto

ONTOPO

Ontario

Thu 11/5

9:25 am-3:10 pm

2 stops21h 45m

Porto

Thu 11/12

12:35 pm-6:47 pm

2 stops38h 12m

$847

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to Porto from

How to get the cheapest flight ticket from Ontario 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 airline that flies from Ontario to Porto?

Delta, American Airlines, and United Airlines are the most popular carriers operating from Ontario to Porto

What airlines fly to Porto?

TAP AIR PORTUGAL, United Airlines and Delta are the top three most popular airlines that fly to Porto from Ontario according to our data. TAP AIR PORTUGAL is the first choice among our users, with 40% of people opting to fly with this airline when traveling to Porto. Keep in mind that there are 8 different airlines that fly to Porto on a routine basis, so you have a few additional options to choose from.

When to book flights from Ontario to Porto

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

Cheap Ontario to Porto (ONT to OPO) flight deals and tips

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

Best Price Found

$324

Fastest flight time

18h 30m

Direct flights

None
The best one-way flight to Porto from Ontario in the past 72 hours is $324. The best round-trip flight deal from Ontario to Porto found on momondo in the last 72 hours is $684.
The fastest flight from Ontario to Porto takes 18h 30m
There are no direct flights from Ontario to Porto. There are no popular flight routes from Ontario to Porto.
Search flight deals

Frequently asked questions about flying from Ontario to Porto

  • How far is Ontario to Porto by plane?

    The distance between Ontario and Porto is about 5556.9 mi. By plane, this route typically takes 18h 30m.

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

    Prices for flights from Ontario Airport to Porto Airport are updated daily.

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

    The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Ontario Airport to Porto Airport.

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

    The necessary travel and health documents for your Porto Airport trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

Traveling to a place near Porto?

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

Why use momondo?

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

To find the flight that best suits your needs, momondo gathers a range of flights from a large pool of different airlines and agents; you can then use our insights and filters to find and book the right flight to Porto from Ontario.

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

Flights from Ontario to Porto with flexible booking policies can be found by using the search form above and then selecting our dedicated flexible booking filter, which will highlight only the flights where this policy is applied.

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

Once you have performed a search for Ontario to Porto flights, momondo helps you find the right one by offering useful filters to narrow down your flight selection. Flights can be filtered by multiple factors such as airline, airport and price; but also by other criteria like aircraft type and payment method.

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

If you are not ready to book a flight from Ontario to Porto now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to Porto and let you know when they change.

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