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$277+ Cheap flights from Irvine, CA to Portugal

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 — LIS
Apr 8 — Apr 151
Tue 4/8
Tue 4/15
1 adult, Economy
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Cheap flight deals from Irvine to Portugal

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

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$584
(Mytrip)

One-way from

$277
(Kiwi.com)

Popular in

June

Cheapest in

February

Average price

$859
Provider with most accurate pricing for Los Angeles-Lisbon Humberto Delgado flight deals.
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Provider most trusted by Cheapflights users for Los Angeles-Lisbon Humberto Delgado flights.
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From Irvine to Portugal
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One-way flight from Irvine to Portugal
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Highest demand for flights based on searches. 18% potential increase in price ($222 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease ($30 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 Portugal

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

This Mytrip 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/287:45 pmLAX - FAO
2 stops27h 35mMultiple Airlines
Tue 5/66:20 amFAO - LAX
2 stops23h 27mMultiple Airlines
Deal found 4/2$584
This Trip.com 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/147:30 pmLAX - FAO
1 stop29h 20mScandinavian Airlines
Wed 4/309:40 amFAO - LAX
1 stop38h 40mScandinavian Airlines
Deal found 4/2$606
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.
Thu 5/11:00 pmLAX - OPO
1 stop35h 50mMultiple Airlines
Thu 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.
Mon 10/2711:23 amLAX - OPO
2 stops17h 22mAmerican Airlines
Mon 11/38:20 amOPO - LAX
2 stops21h 01mAmerican Airlines
Deal found 4/1$645
This Kiwi.com 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/89:25 pmLAX - LIS
1 stop17h 00mMultiple Airlines
Wed 5/146:30 amLIS - LAX
1 stop20h 35mMultiple Airlines
Deal found 4/2$660
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.
Sat 10/259:50 pmLAX - LIS
1 stop28h 30mAir Canada
Mon 11/311:00 amLIS - LAX
1 stop35h 56mAir Canada
Deal found 4/1$665
This Iberia 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 Iberia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/153:20 pmLAX - LIS
1 stop22h 10mIberia
Mon 10/209:10 amLIS - LAX
1 stop16h 55mIberia
Deal found 4/2$669
This United 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 United is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/512:59 amLAX - LIS
2 stops23h 11mUnited Airlines
Fri 11/2110:15 amLIS - LAX
2 stops20h 39mUnited Airlines
Deal found 4/2$671
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.
Mon 8/412:05 pmLAX - OPO
1 stop13h 30mUnited Airlines
Tue 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.
Sun 11/235:30 pmLAX - OPO
2 stops34h 35mBrussels Airlines
Sun 11/3012:55 pmOPO - LAX
2 stops58h 20mBrussels Airlines
Deal found 4/1$679
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.
Sat 10/2510:25 amLAX - LIS
1 stop15h 35mDelta
Sat 11/15:30 amLIS - LAX
2 stops24h 19mDelta
Deal found 4/1$684
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.
Tue 8/510:30 pmLAX - OPO
1 stop26h 50mAir Canada
Thu 8/2112:10 pmOPO - LAX
2 stops19h 38mAir Canada
Deal found 4/1$686

Cheapflights Fare Finder

Customize your flight search to find flights from Irvine to Portugal 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 April 3, 2025.
Use the filters below to find and compare flights from Irvine to Portugal that are best for you.

Fly from

Irvine

Fly to

Portugal

Route

Depart

Return

Price

Los AngelesFaro

LAX - FAO

LAXFAO

Los Angeles

Mon 4/28

7:45 pm-7:20 am

2 stops27h 35m

Faro

Tue 5/6

6:20 am-9:47 pm

2 stops23h 27m

$584

Los AngelesFaro

LAX - FAO

LAXFAO

Los Angeles

Mon 4/14

7:30 pm-8:50 am

1 stop29h 20m

Faro

Wed 4/30

9:40 am-4:20 pm

1 stop38h 40m

$606

Los AngelesPorto

LAX - OPO

LAXOPO

Los Angeles

Thu 5/1

1:00 pm-8:50 am

1 stop35h 50m

Porto

Thu 5/8

8:50 am-3:15 pm

1 stop38h 25m

$632

Los AngelesLisbon

LAX - LIS

LAXLIS

Los Angeles

Thu 5/8

9:25 pm-10:25 pm

1 stop17h 00m

Lisbon Humberto Delgado

Wed 5/14

6:30 am-7:05 pm

1 stop20h 35m

$660

Los AngelesPorto

LAX - OPO

LAXOPO

Los Angeles

Mon 8/4

12:05 pm-9:35 am

1 stop13h 30m

Porto

Tue 8/19

12:50 pm-1:26 pm

2 stops32h 36m

$673

Los AngelesPorto

LAX - OPO

LAXOPO

Los Angeles

Tue 8/5

10:30 pm-9:20 am

1 stop26h 50m

Porto

Thu 8/21

12:10 pm-9:35 pm

1 stop17h 25m

$686

Los AngelesLisbon

LAX - LIS

LAXLIS

Los Angeles

Mon 5/5

7:55 pm-9:25 pm

1 stop17h 30m

Lisbon Humberto Delgado

Thu 5/15

10:10 pm-6:10 pm

1 stop28h 00m

$709

Los AngelesPorto

LAX - OPO

LAXOPO

Los Angeles

Mon 4/21

8:15 am-11:30 am

2 stops43h 15m

Porto

Mon 4/28

12:50 pm-4:30 pm

1 stop35h 40m

$712

Los AngelesPorto

LAX - OPO

LAXOPO

Los Angeles

Tue 4/22

5:30 pm-11:20 pm

1 stop21h 50m

Porto

Thu 5/1

6:15 am-3:15 pm

1 stop17h 00m

$714

Los AngelesPorto

LAX - OPO

LAXOPO

Los Angeles

Mon 4/14

12:25 pm-3:30 pm

2 stops19h 05m

Porto

Wed 5/14

6:20 am-2:50 pm

1 stop16h 30m

$716

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/2

Showing 1-10 of 60 results
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Best time to book a flight from Irvine to Portugal

Have a flexible travel schedule? Discover the best time to fly to Portugal 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 Portugal

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

Currently, January is the cheapest month in which you can book a flight from Irvine to Portugal (average of $612). Flying from Irvine to Portugal in June is currently the most expensive (average of $1,203). 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 PT?

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

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Irvine to Portugal as you normally would.

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

Use this chart to determine the cheapest time to fly round-trip from Irvine to Portugal. Price data was last updated on December 16, 2024.

Travelers seeking maximum savings on their Irvine to Portugal flight should consider departing on Thursday afternoons when fares are most often at their lowest. Monday afternoons flights should be avoided if possible as fares are typically the most expensive at this time.

Rainfall in Portugal by month

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

In terms of precipitation, rainfall in Portugal ranges from 0.2 - 4.8 inches per month. December is typically the wettest month, when rainfall can reach 4.8 in. July is typically the driest time to visit Portugal when rainfall is around 0.2 in.

Temperature in Portugal by month

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

If weather is an important factor for your trip to Portugal, 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 73.4 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 51.8 F).

Reviews of airlines servicing Portugal

Get insights into the airlines that provide service to Portugal. 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 Portugal. Reviews last updated April 3, 2025.
Read through reviews of airlines operating flights from Irvine to Portugal, such as Delta, KLM and Air Transat. 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

Overall

8.0

Boarding

8.2

Comfort

7.9

Crew

8.5

Food

7.3

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

Overall

8.0

Boarding

8.2

Comfort

7.9

Crew

8.5

Food

7.3

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

Overall

8.0

Boarding

8.2

Comfort

7.9

Crew

8.5

Food

7.3

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

Overall

8.0

Boarding

8.2

Comfort

7.9

Crew

8.5

Food

7.3

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

Overall

8.0

Boarding

8.2

Comfort

7.9

Crew

8.5

Food

7.3

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

Overall

8.0

Boarding

8.2

Comfort

7.9

Crew

8.5

Food

7.3

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 Portugal. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • How popular is this Irvine to Portugal flight route?

    Flights from Irvine to Portugal have been viewed 21 times in the past calendar month.

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

    $359 is the cheapest one-way deal found within the past few days, from Vueling. You may also be able to find cheap deals on Iberia and Scandinavian Airlines, with prices starting from $376 and $462, respectively.

  • What are the most popular routes from Irvine to Portugal?

    The most popular flight routes from Irvine to Portugal are Los Angeles - Lisbon Humberto Delgado, Los Angeles - Porto and Los Angeles - Faro.

  • What are the cheapest flights from Irvine to Portugal?

    Looking at all options, your cheapest flight can be booked for $235. While the most popular route (Los Angeles - Lisbon Humberto Delgado) can be booked for $470 on average our data indicates $1,793 when flying from Irvine to Portugal.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Irvine to Portugal 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 Portugal?

    Currently, January is the cheapest month in which you can book a flight from Irvine to Portugal (average of $612). Flying from Irvine to Portugal in June is currently the most expensive (average of $1,203). 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

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Top 10 airlines flying from Irvine to Portugal

Discover the top 10 airlines that operate flights from Irvine to Portugal. 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 April 3, 2025.
AirlineCheapestAverageFlexibilityOn-time
LEVELCheapest$433Average$634FlexibilityNo cancel feeOn-timeN/A
VuelingCheapest$504Average$757FlexibilityNo cancel feeOn-time88%
SWISSCheapest$537Average$1,046FlexibilityNo cancel feeOn-time79%
DeltaCheapest$540Average$1,062FlexibilityNo cancel feeOn-timeN/A
FinnairCheapest$540Average$926FlexibilityNo cancel feeOn-time76%
Scandinavian AirlinesCheapest$569Average$720FlexibilityNo cancel feeOn-time77%
Virgin AtlanticCheapest$607Average$906FlexibilityNo cancel feeOn-time72%
IberiaCheapest$616Average$1,199FlexibilityNo cancel feeOn-time77%
LufthansaCheapest$617Average$1,127FlexibilityNo cancel feeOn-time76%
American AirlinesCheapest$618Average$1,079FlexibilityNo cancel feeOn-time71%

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