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Cheap flights from Oakland, California to Portugal from $318

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Oakland, California to Portugal departing on 10/16. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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Find the cheapest flights from Oakland, California to Portugal

Cheap round-trip flights

Delta Logo
5:05 pm - 8:55 amOAK-LIS
55h 50m2 stops
Delta Logo
11:25 am - 11:53 pmLIS-OAK
44h 28m2 stops
$707Delta
Find Deal
Fri, Nov 14 - Sun, Nov 23
Delta Logo
5:55 am - 3:25 pmOAK-OPO
25h 30m2 stops
Delta Logo
11:15 am - 4:31 pmOPO-OAK
37h 16m2 stops
$727Delta
Find Deal
Wed, Dec 3 - Sun, Dec 7
Logo
6:30 am - 10:30 pmOAK-LIS
32h 00m3 stops
Logo
9:00 pm - 9:36 pmLIS-OAK
32h 36m3 stops
$747
Find Deal
Mon, Sep 29 - Mon, Oct 13
Delta Logo
5:55 am - 10:30 amOAK-OPO
20h 35m2 stops
Delta Logo
11:25 am - 4:21 pmOPO-OAK
36h 56m2 stops
$749Delta
Find Deal
Thu, Dec 11 - Sat, Dec 20
KLM Logo
5:55 am - 10:30 amOAK-OPO
20h 35m2 stops
KLM Logo
4:10 pm - 4:31 pmOPO-OAK
32h 21m2 stops
$753KLM
Find Deal
Wed, Dec 3 - Sun, Dec 7
Delta Logo
12:37 pm - 10:45 amOAK-LIS
38h 08m2 stops
Delta Logo
5:40 am - 11:53 pmLIS-OAK
26h 13m2 stops
$754Delta
Find Deal
Sun, Sep 28 - Thu, Oct 9
Delta Logo
6:00 am - 2:50 pmOAK-LIS
24h 50m2 stops
Delta Logo
5:40 am - 11:53 pmLIS-OAK
26h 13m2 stops
$755Delta
Find Deal
Tue, Sep 30 - Thu, Oct 9
Logo
2:39 pm - 5:30 amOAK-LIS
30h 51m2 stops
Logo
9:00 pm - 9:36 pmLIS-OAK
32h 36m3 stops
$845
Find Deal
Mon, Sep 29 - Mon, Oct 13
British Airways Logo
2:30 pm - 11:10 pmOAK-LIS
24h 40m2 stops
British Airways Logo
6:45 pm - 12:03 amLIS-OAK
37h 18m2 stops
$881British Airways
Find Deal
Mon, Sep 29 - Mon, Oct 13
British Airways Logo
2:59 pm - 9:55 amOAK-LIS
58h 56m2 stops
British Airways Logo
6:35 pm - 11:59 pmLIS-OAK
37h 24m2 stops
$912British Airways
Find Deal
Thu, Dec 25 - Mon, Jan 5

Delta flights from Oakland, California to Portugal

Our best Delta deals on Oakland, California to Portugal flight tickets
Delta
Nov 14
OAK5:05 pmOakland
55h 50m
2 stops
LIS8:55 amLisbon Humberto Delgado
Nov 23
LIS11:25 amLisbon Humberto Delgado
44h 28m
2 stops
OAK11:53 pmOakland
$707
Find similar
Delta
Dec 3
OAK5:55 amOakland
25h 30m
2 stops
OPO3:25 pmPorto
Dec 7
OPO11:15 amPorto
37h 16m
2 stops
OAK4:31 pmOakland
$727
Find similar
Delta
Dec 11
OAK5:55 amOakland
20h 35m
2 stops
OPO10:30 amPorto
Dec 20
OPO11:25 amPorto
36h 56m
2 stops
OAK4:21 pmOakland
$749
Find similar

British Airways flights from Oakland, California to Portugal

Our best British Airways deals on Oakland, California to Portugal flight tickets
British Airways
Sep 29
OAK2:30 pmOakland
24h 40m
2 stops
LIS11:10 pmLisbon Humberto Delgado
Oct 13
LIS6:45 pmLisbon Humberto Delgado
37h 18m
2 stops
OAK12:03 amOakland
$881
Find similar
British Airways
Dec 25
OAK2:59 pmOakland
58h 56m
2 stops
LIS9:55 amLisbon Humberto Delgado
Jan 5
LIS6:35 pmLisbon Humberto Delgado
37h 24m
2 stops
OAK11:59 pmOakland
$912
Find similar
British Airways
Oct 19
OAK6:40 amOakland
32h 25m
2 stops
LIS11:05 pmLisbon Humberto Delgado
Oct 24
LIS7:20 amLisbon Humberto Delgado
24h 43m
2 stops
OAK12:03 amOakland
$926
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from Oakland, California 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, momondo users made 832,500 searches. Data last updated August 17, 2025.
Use the filters below to find and compare flights from Oakland, California to Portugal that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

OaklandLisbon

OAK - LIS

OAKLIS

Oakland

Fri 11/14

5:05 pm-8:55 am

2 stops55h 50m

Lisbon Humberto Delgado

Sun 11/23

11:25 am-11:53 pm

2 stops44h 28m

$707

OaklandPorto

OAK - OPO

OAKOPO

Oakland

Wed 12/3

5:55 am-3:25 pm

2 stops25h 30m

Porto

Sun 12/7

11:15 am-4:31 pm

2 stops37h 16m

$727

OaklandLisbon

OAK - LIS

OAKLIS

Oakland

Mon 9/29

6:30 am-10:30 pm

3 stops32h 00m

Lisbon Humberto Delgado

Mon 10/13

9:00 pm-9:36 pm

3 stops32h 36m

$747

OaklandPorto

OAK - OPO

OAKOPO

Oakland

Thu 12/11

5:55 am-10:30 am

2 stops20h 35m

Porto

Sat 12/20

11:25 am-4:21 pm

2 stops36h 56m

$749

OaklandPorto

OAK - OPO

OAKOPO

Oakland

Wed 12/3

5:55 am-10:30 am

2 stops20h 35m

Porto

Sun 12/7

4:10 pm-4:31 pm

2 stops32h 21m

$753

OaklandLisbon

OAK - LIS

OAKLIS

Oakland

Sun 9/28

12:37 pm-10:45 am

2 stops38h 08m

Lisbon Humberto Delgado

Thu 10/9

5:40 am-11:53 pm

2 stops26h 13m

$754

OaklandLisbon

OAK - LIS

OAKLIS

Oakland

Tue 9/30

6:00 am-2:50 pm

2 stops24h 50m

Lisbon Humberto Delgado

Thu 10/9

5:40 am-11:53 pm

2 stops26h 13m

$755

OaklandLisbon

OAK - LIS

OAKLIS

Oakland

Mon 9/29

2:39 pm-5:30 am

2 stops30h 51m

Lisbon Humberto Delgado

Mon 10/13

9:00 pm-9:36 pm

3 stops32h 36m

$845

OaklandLisbon

OAK - LIS

OAKLIS

Oakland

Mon 9/29

2:30 pm-11:10 pm

2 stops24h 40m

Lisbon Humberto Delgado

Mon 10/13

6:45 pm-12:03 am

2 stops37h 18m

$881

OaklandLisbon

OAK - LIS

OAKLIS

Oakland

Thu 12/25

2:59 pm-9:55 am

2 stops58h 56m

Lisbon Humberto Delgado

Mon 1/5

6:35 pm-11:59 pm

2 stops37h 24m

$912

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 Portugal from

How to get the cheapest flight ticket from Oakland, California to Portugal

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 day to depart on your flight to Portugal?

According to our data, Friday is the cheapest day to fly to Portugal from Oakland, California. The lowest ticket price found for a Friday departure recently was $735. Keep in mind that prices can always vary depending on your route and whether or not you are flying domestic or international. The most expensive day to fly to Portugal is Monday, with ticket prices averaging around $989.

What is the cheapest time of day to depart on your flight to Portugal?

Our most recent data shows that the best time of day to fly to Portugal is in the evening. Flights from Oakland, California to Portugal during this time can be as low as $729. In the afternoon is when there is more demand to fly to Portugal, so prices are often more expensive at around $1,154 per ticket.

What is the cheapest Oakland to Portugal flight route?

Fly from Oakland to Lajes for the best Oakland - Portugal flight prices

What cabin class options are available on Oakland to Portugal flights?

There are 2 cabin classes available to choose from on Oakland to Portugal flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Cheap Oakland, California to Portugal flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Oakland, California to Portugal

Best Price Found

$318

Fastest flight time

17h 22m

Direct flights

None

Airports in Portugal

5 airports
The best one-way flight to Portugal from Oakland, California in the past 72 hours is $318. The best round-trip flight deal from Oakland, California to Portugal found on momondo in the last 72 hours is $707.
The fastest flight from Oakland, California to Portugal takes 17h 22m
There are no direct flights from Oakland, California to Portugal. Popular non-direct routes for this connection are Oakland Airport - Ponta Delgada Nordela Airport, Oakland Airport - Lisbon Humberto Delgado Airport and Oakland Airport - Faro Airport.
There are 5 airports near Portugal: Faro (FAO), Lisbon Humberto Delgado (LIS), Ponta Delgada Nordela (PDL), Funchal Madeira (FNC), Porto (OPO)
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  • When did momondo last update prices for flights from Oakland Airport to Portugal?

    Prices for flights from Oakland Airport to Portugal are updated daily.

  • How old do you have to be to fly from Oakland Airport to Portugal?

    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 Oakland Airport to Portugal.

  • What documentation or ID do you need to fly to Portugal?

    The travel and health documents required for your trip to Portugal can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Portugal. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

  • What is the most popular plane model from Oakland, California to Portugal?

Best airlines flying from Oakland, California to Portugal

Compare and see reviews for airlines that fly from Oakland, California to Portugal with momondo
Airline
Rating
Free Cancellation
Price
TAP AIR PORTUGALPriceFrom $728Free CancellationRating
7.1
1,954 reviews
Search TAP AIR PORTUGAL flights

Why use momondo?

Why should I use momondo to find a flight deal from Oakland to Portugal?

momondo collates all your flight options in one place and lets you filter them to find the perfect flight from Oakland to Portugal. momondo saves you time and could save you money on your trip.

Can I find flights from Oakland to Portugal with flexible booking policies on momondo?

Yes. momondo enables you to select and highlight flights to Portugal from Oakland with this policy.

How can momondo help me find flights from Oakland to Portugal?

momondo helps you find the best flight between Oakland and Portugal by providing filters to narrow your choice of flights to those matching your criteria. You can select flights based on numerous factors such as price, departure and landing times, airport and airline.

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

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

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Find better results for your trip to Portugal

Popular cities in Portugal

Popular flights according to clicks in the last 7 days on momondo
Flights to Lisbonfrom $356
Flights to Portofrom $339
Flights to Funchalfrom $420
Flights to Farofrom $377
Flights to Ponta Delgadafrom $449
Flights to Lajesfrom $522
Flights to Hortafrom $589
Flights to Pico Islandfrom $555
Flights to Porto Santofrom $422
Flights to Velasfrom $594