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$640+ Cheap flights from Monterey (MRY) to Portugal

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 2/18. Fares are subject to change and may not be available on all flights or dates of travel.
MRY — LIS
Mar 7 — Mar 141
Sat 3/7
Sat 3/14
1 adult, Economy
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Cheap flight deals from Monterey to Portugal

Cheapest flights from Monterey to Portugal
Explore the most affordable flight options available from Monterey to Portugal. Find the lowest fares from popular airlines and budget airlines, with prices last updated on February 5, 2026.

This United Airlines deal was found by Cheapflights users on 2/3. 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.
Wed 2/186:40 am
MRY
-
LIS
2 stops17h 30m
United Airlines
Sun 2/2212:15 pm
LIS
-
MRY
2 stops41h 15m
United Airlines
Deal found 2/3$640
This United Airlines deal was found by Cheapflights users on 2/2. 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 Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 2/65:00 am
MRY
-
LIS
2 stops19h 10m
United Airlines
Tue 2/105:00 am
LIS
-
MRY
2 stops24h 59m
United Airlines
Deal found 2/2$825
This United Airlines deal was found by Cheapflights users on 2/2. 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 Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 2/142:01 pm
MRY
-
LIS
2 stops25h 29m
United Airlines
Sun 2/2211:55 am
LIS
-
MRY
2 stops41h 35m
United Airlines
Deal found 2/2$898
This United Airlines deal was found by Cheapflights users on 2/2. 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 Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/13:30 pm
MRY
-
LIS
2 stops35h 30m
United Airlines
Fri 7/241:00 pm
LIS
-
MRY
2 stops33h 55m
United Airlines
Deal found 2/2$986
This United Airlines deal was found by Cheapflights users on 2/2. 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 Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 6/245:00 am
MRY
-
LIS
2 stops46h 00m
United Airlines
Thu 7/231:00 pm
LIS
-
MRY
2 stops39h 09m
United Airlines
Deal found 2/2$1,073
This American Airlines deal was found by Cheapflights users on 2/2. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 6/264:17 pm
MRY
-
LIS
2 stops22h 53m
Multiple Airlines
Thu 7/2311:05 am
LIS
-
MRY
2 stops20h 26m
Multiple Airlines
Deal found 2/2$1,320
This United Airlines deal was found by Cheapflights users on 2/2. 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 Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 6/261:54 pm
MRY
-
LIS
2 stops36h 41m
United Airlines
Thu 7/2312:20 pm
LIS
-
MRY
3 stops39h 49m
United Airlines
Deal found 2/2$1,435

Find flight deals from Monterey to Portugal

Keep the following information in mind while searching for Monterey to Portugal flight deals. Data was last updated February 5, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$640
(United Airlines)

Popular in

June

Cheapest in

January

Average price

$659
Provider with most accurate pricing for San Francisco-Lisbon Humberto Delgado flight deals.
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Provider most trusted by Cheapflights users for San Francisco-Lisbon Humberto Delgado flights.
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From Monterey Regional to Portugal
Search Deals
Highest demand for flights based on searches. 16% potential increase in price ($157 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($27 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in February 2026
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Monterey 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 February 5, 2026.
Use the filters below to find and compare flights from Monterey to Portugal that are best for you.

Fly from

Monterey

Fly to

Portugal

Route

Depart

Return

Price

MontereyLisbon

MRY - LIS

MRYLIS

Monterey Regional

Wed 2/18

6:40 am-8:10 am

2 stops17h 30m

Lisbon Humberto Delgado

Sun 2/22

12:15 pm-9:30 pm

2 stops41h 15m

$640

MontereyLisbon

MRY - LIS

MRYLIS

Monterey Regional

Sat 2/14

2:01 pm-11:30 pm

2 stops25h 29m

Lisbon Humberto Delgado

Sun 2/22

11:55 am-9:30 pm

2 stops41h 35m

$898

MontereyLisbon

MRY - LIS

MRYLIS

Monterey Regional

Wed 7/1

3:30 pm-11:00 am

2 stops35h 30m

Lisbon Humberto Delgado

Fri 7/24

1:00 pm-10:02 pm

3 stops41h 02m

$986

MontereyLisbon

MRY - LIS

MRYLIS

Monterey Regional

Wed 6/24

5:00 am-11:00 am

2 stops46h 00m

Lisbon Humberto Delgado

Thu 7/23

12:20 pm-8:09 pm

3 stops39h 49m

$1,098

MontereyLisbon

MRY - LIS

MRYLIS

Monterey Regional

Fri 6/26

1:54 pm-10:35 am

2 stops36h 41m

Lisbon Humberto Delgado

Thu 7/23

12:20 pm-8:09 pm

3 stops39h 49m

$1,435

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/3

Best time to book a flight from Monterey to Portugal

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

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

Currently, April is the cheapest month in which you can book a flight from Monterey to Portugal (average of $431). Flying from Monterey to Portugal in June is currently the most expensive (average of $761). 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.

Related info for your journey

Find useful and relevant information for your journey from Monterey to Portugal. 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 from for flights from Monterey to Portugal?

    Most people fly from Monterey Regional (MRY) if they book a flight from Monterey to Portugal. Monterey Regional is conveniently located just 3.2 mi from Monterey’s city center.

  • How long is the flight from Monterey to Portugal?

    A quick flight from Monterey to Portugal can take about 17h 30m. United Airlines provides one of the quickest options available for as low as $640. There are 5692 mi between Monterey and Portugal.

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

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

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

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

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

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

    Currently, April is the cheapest month in which you can book a flight from Monterey to Portugal (average of $431). Flying from Monterey to Portugal in June is currently the most expensive (average of $761). 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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