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$277+ Cheap flights from Irvine, CA to Porto (OPO)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 4/7. Fares are subject to change and may not be available on all flights or dates of travel.
LAX — OPO
abr. 8 — abr. 151
mar. 4/8
mar. 4/15
1 adult, Economy
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Cheapflights Tip: The best prices from Irvine to Porto are usually found in February or October, booked 86 days in advance, depart on a Wednesday or Sunday and return on a Tuesday

Cheap flight deals from Irvine to Porto

Keep the following information in mind while searching for Irvine to Porto flight deals. Data was last updated abril 3, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$635
(Kiwi.com)

One-way from

$277
(Kiwi.com)

Popular in

July

Cheapest in

February

Average price

$1,048
Provider with most accurate pricing for Los Angeles-Porto flight deals.
Search Deals
Provider most trusted by Cheapflights users for Los Angeles-Porto flights.
Search Deals
From Irvine to Porto
Search Deals
One-way flight from Irvine to Porto
Search Deals
Highest demand for flights based on searches. 14% potential increase in price ($169 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($25 potential savings vs. average RT price).
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Average for round-trip flights in April 2025
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Find flight deals from Irvine to Porto

Cheapest flights from Irvine to Porto
Explore the most affordable flight options available from Irvine to Porto. Find the lowest fares from popular airlines and budget airlines, with prices last updated on abril 3, 2025.

This Kiwi.com deal was found by Cheapflights users on 4/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 5/11:00 pmLAX - OPO
1 stop35h 50mMultiple Airlines
jue. 5/88:50 amOPO - LAX
1 stop38h 25mMultiple Airlines
Deal found 4/1$632
This American Airlines deal was found by Cheapflights users on 4/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 10/2711:23 amLAX - OPO
2 stops17h 22mAmerican Airlines
lun. 11/38:20 amOPO - LAX
2 stops21h 01mAmerican Airlines
Deal found 4/1$645
This United Airlines deal was found by Cheapflights users on 4/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 8/412:05 pmLAX - OPO
1 stop13h 30mUnited Airlines
mar. 8/1912:50 pmOPO - LAX
2 stops32h 36mUnited Airlines
Deal found 4/1$673
This Brussels Airlines deal was found by Cheapflights users on 4/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Brussels Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
dom. 11/235:30 pmLAX - OPO
2 stops34h 35mBrussels Airlines
dom. 11/3012:55 pmOPO - LAX
2 stops58h 20mBrussels Airlines
Deal found 4/1$679
This Air Canada deal was found by Cheapflights users on 4/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 8/510:30 pmLAX - OPO
1 stop26h 50mAir Canada
jue. 8/2112:10 pmOPO - LAX
2 stops19h 38mAir Canada
Deal found 4/1$686
This SWISS deal was found by Cheapflights users on 4/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure SWISS is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 4/97:35 pmLAX - OPO
1 stop28h 20mSWISS
mar. 4/158:40 amOPO - LAX
1 stop15h 50mSWISS
Deal found 4/1$708
This Lufthansa deal was found by Cheapflights users on 4/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Lufthansa is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 4/225:30 pmLAX - OPO
1 stop21h 50mLufthansa
jue. 5/16:15 amOPO - LAX
1 stop17h 00mLufthansa
Deal found 4/1$714
This Delta deal was found by Cheapflights users on 4/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 4/1412:25 pmLAX - OPO
2 stops19h 05mDelta
mié. 5/146:20 amOPO - LAX
1 stop16h 30mDelta
Deal found 4/1$716
This Ovago deal was found by Cheapflights users on 4/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Ovago is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 4/77:30 pmLAX - OPO
1 stop31h 30mScandinavian Airlines
mié. 5/712:15 pmOPO - LAX
1 stop36h 05mScandinavian Airlines
Deal found 4/1$730
This oojo deal was found by Cheapflights users on 4/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
vie. 9/1912:10 amLAX - OPO
1 stop32h 00mTurkish Airlines
mié. 10/810:50 amOPO - LAX
1 stop32h 55mTurkish Airlines
Deal found 4/2$845

Cheapflights Fare Finder

Customize your flight search to find flights from Irvine 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, Cheapflights users made 2,558,603 searches. Data last updated abril 3, 2025.
Use the filters below to find and compare flights from Irvine to Porto that are best for you.

Fly from

Irvine

Fly to

Porto

Route

Depart

Return

Price

Los AngelesPorto

LAX - OPO

LAXOPO

Los Angeles

jue. 5/1

1:00 pm-8:50 am

1 stop35h 50m

Porto

jue. 5/8

8:50 am-3:15 pm

1 stop38h 25m

$632

Los AngelesPorto

LAX - OPO

LAXOPO

Los Angeles

lun. 8/4

12:05 pm-9:35 am

1 stop13h 30m

Porto

mar. 8/19

12:50 pm-1:26 pm

2 stops32h 36m

$673

Los AngelesPorto

LAX - OPO

LAXOPO

Los Angeles

mar. 8/5

10:30 pm-9:20 am

1 stop26h 50m

Porto

jue. 8/21

12:10 pm-9:35 pm

1 stop17h 25m

$686

Los AngelesPorto

LAX - OPO

LAXOPO

Los Angeles

lun. 4/21

8:15 am-11:30 am

2 stops43h 15m

Porto

lun. 4/28

12:50 pm-4:30 pm

1 stop35h 40m

$712

Los AngelesPorto

LAX - OPO

LAXOPO

Los Angeles

mar. 4/22

5:30 pm-11:20 pm

1 stop21h 50m

Porto

jue. 5/1

6:15 am-3:15 pm

1 stop17h 00m

$714

Los AngelesPorto

LAX - OPO

LAXOPO

Los Angeles

lun. 4/14

12:25 pm-3:30 pm

2 stops19h 05m

Porto

mié. 5/14

6:20 am-2:50 pm

1 stop16h 30m

$716

Los AngelesPorto

LAX - OPO

LAXOPO

Los Angeles

lun. 4/21

7:30 pm-11:00 am

1 stop31h 30m

Porto

mié. 4/30

12:15 pm-4:20 pm

1 stop36h 05m

$747

Los AngelesPorto

LAX - OPO

LAXOPO

Los Angeles

mié. 9/10

12:10 am-9:45 am

1 stop25h 35m

Porto

mar. 9/23

4:50 pm-11:45 am

1 stop26h 55m

$807

Los AngelesPorto

LAX - OPO

LAXOPO

Los Angeles

jue. 4/24

5:50 pm-3:55 pm

1 stop14h 05m

Porto

lun. 5/5

8:15 am-8:45 pm

2 stops20h 30m

$830

Los AngelesPorto

LAX - OPO

LAXOPO

Los Angeles

sáb. 4/12

1:46 pm-3:30 pm

2 stops41h 44m

Porto

dom. 4/20

4:20 pm-1:05 pm

1 stop28h 45m

$857

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/2

Showing 1-10 of 22 results
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Best time to book a flight from Irvine to Porto

Have a flexible travel schedule? Discover the best time to fly to Porto from Irvine with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Irvine to Porto

How far ahead should I book a flight from Irvine to Porto?

Use this chart to determine the optimal time to book a round-trip flight from Irvine to Porto. Price data was last updated on March 28, 2025.

Booking 86 days in advance of your planned departure date is, on average, the best time to get cheap flights from Irvine to Porto. The general trend is that the closer you book to the departure date, the more expensive your flight will be.

What is the cheapest month to book a flight from Irvine to Porto?

Currently, January is the cheapest month in which you can book a flight from Irvine to Porto (average of $523). Flying from Irvine to Porto in June is currently the most expensive (average of $1,081). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from IR9 to OPO?

Find hourly flight availability from Irvine to Porto. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated abril 3, 2025.

When flying from Irvine to Porto, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

What is the cheapest day to fly from Irvine to Porto?

Use this chart to determine the cheapest time to fly round-trip from Irvine to Porto. Price data was last updated on October 13, 2024.

Travelers seeking maximum savings on their Irvine to Porto flight should consider departing on Sunday evenings when fares are most often at their lowest. Tuesday mornings flights should be avoided if possible as fares are typically the most expensive at this time.

Rainfall in Porto by month

Plan your trip to Porto by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Porto ranges from 0.7 - 7.7 inches per month. December is typically the wettest month, when rainfall can reach 7.7 in. July is typically the driest time to visit Porto when rainfall is around 0.7 in.

Temperature in Porto by month

Plan your trip to Porto by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Porto, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 68.0 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 48.2 F).

Reviews of airlines servicing Porto

Get insights into the airlines that provide service to Porto. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Porto. Reviews last updated abril 3, 2025.
Get a feel of what it's like to fly with Delta, KLM and Air Transat from Irvine to Porto by reading reviews from past customers. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
7,897 reviews

Crew

8.5

Food

7.3

Boarding

8.2

Comfort

7.9

Overall

8.0

Entertainment

7.9

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
Delta
8.0
Very good
7,897 reviews
Delta
8.0
Very good
7,897 reviews

Crew

8.5

Food

7.3

Boarding

8.2

Comfort

7.9

Overall

8.0

Entertainment

7.9

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
KLM
7.8
Good
1,323 reviews
Delta
8.0
Very good
7,897 reviews

Crew

8.5

Food

7.3

Boarding

8.2

Comfort

7.9

Overall

8.0

Entertainment

7.9

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
Air Transat
7.8
Good
382 reviews
Delta
8.0
Very good
7,897 reviews

Crew

8.5

Food

7.3

Boarding

8.2

Comfort

7.9

Overall

8.0

Entertainment

7.9

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
Austrian Airlines
7.6
Good
771 reviews
Delta
8.0
Very good
7,897 reviews

Crew

8.5

Food

7.3

Boarding

8.2

Comfort

7.9

Overall

8.0

Entertainment

7.9

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
SWISS
7.5
Good
1,574 reviews
Delta
8.0
Very good
7,897 reviews

Crew

8.5

Food

7.3

Boarding

8.2

Comfort

7.9

Overall

8.0

Entertainment

7.9

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

Related info for your journey

Find useful and relevant information for your journey from Irvine to Porto. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly into for flights to Porto from Irvine?

    Porto (OPO) is the airport you will fly into if you book a flight from Irvine to Porto. You should not have trouble finding flights to Porto from Irvine; the airport handles an average of 0 inbound flights from Irvine per day. You should also have plenty of airline options to choose from since 13 airlines have flights to the Porto airport from Irvine. It is only a 6.8 mi journey from Porto (OPO) to Porto’s city center.

  • What are the cheapest airlines to fly from Irvine to Porto one-way?

    One-way options have recently been found by users for as low as $508 on TAP AIR PORTUGAL. Other airlines that offer cheap prices include Iberia from $520 and Air Transat from $531 one-way.

  • Can I find deals for flights from Irvine to Porto that include hotel bookings?

    Yes. In addition to deals on Irvine to Porto flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Irvine to Porto?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Irvine to Porto.

  • Can I find deals for business class flights from Irvine to Porto?

    Yes. Cheapflights offers flight deals from Irvine to Porto by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Irvine to Porto?

    Currently, January is the cheapest month in which you can book a flight from Irvine to Porto (average of $523). Flying from Irvine to Porto in June is currently the most expensive (average of $1,081). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Traveling to a place near Irvine?

Book flights to Irvine if you plan to visit one of these locations
Aveiro
Coimbra
Matosinhos
Arcos de Valdevez

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Top 10 airlines flying from Irvine to Porto

Discover the top 10 airlines that operate flights from Irvine to Porto. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated abril 3, 2025.
AirlineCheapestAverageFlexibilityOn-time
LEVELCheapest$433Average$593FlexibilityNo cancel feeOn-timeN/A
VuelingCheapest$504Average$800FlexibilityNo cancel feeOn-time88%
American AirlinesCheapest$663Average$963FlexibilityNo cancel feeOn-time71%
SWISSCheapest$674Average$1,023FlexibilityNo cancel feeOn-time79%
KLMCheapest$682Average$1,063FlexibilityNo cancel feeOn-time75%
Turkish AirlinesCheapest$688Average$791FlexibilityNo cancel feeOn-time77%
IberiaCheapest$690Average$1,021FlexibilityNo cancel feeOn-time77%
Air FranceCheapest$690Average$940FlexibilityNo cancel feeOn-time77%
TAP AIR PORTUGALCheapest$697Average$980FlexibilityNo cancel feeOn-timeN/A
LufthansaCheapest$760Average$1,081FlexibilityNo cancel feeOn-time76%

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