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Cheap flights from Oakland, California to Portugal from $346

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 8/4. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
1 adult, Economy, 0 bags

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Find the cheapest flights from Oakland, California to Portugal

Cheap round-trip flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
5:55 am - 5:50 pm
OAK
-
LIS
27h 55m
2 stops
Multiple Airlines Logo
7:45 pm - 4:24 pm
LIS
-
OAK
28h 39m
2 stops
$624Multiple Airlines
Tue, Apr 7 - Tue, Apr 14
Delta Logo
5:55 am - 8:50 am
OAK
-
LIS
42h 55m
2 stops
Delta Logo
5:00 am - 11:54 pm
LIS
-
OAK
26h 54m
2 stops
$626Delta
Tue, Apr 7 - Tue, Apr 14
Delta Logo
12:34 pm - 10:55 am
OAK
-
LIS
38h 21m
2 stops
Delta Logo
5:00 am - 4:24 pm
LIS
-
OAK
19h 24m
2 stops
$629Delta
Wed, Apr 15 - Wed, Apr 29
Delta Logo
5:55 pm - 5:50 pm
OAK
-
LIS
39h 55m
2 stops
Delta Logo
5:00 am - 11:54 pm
LIS
-
OAK
26h 54m
2 stops
$630Delta
Sat, Apr 25 - Wed, May 6
Delta Logo
4:49 pm - 8:50 am
OAK
-
LIS
56h 01m
2 stops
Delta Logo
11:55 am - 11:54 pm
LIS
-
OAK
43h 59m
2 stops
$631Delta
Mon, Apr 6 - Tue, Apr 14
Multiple Airlines Logo
9:53 am - 7:05 pm
OAK
-
FAO
25h 12m
2 stops
Multiple Airlines Logo
1:20 pm - 10:23 pm
FAO
-
OAK
41h 03m
2 stops
$1,011Multiple Airlines
Thu, Apr 30 - Thu, May 7
British Airways Logo
7:00 am - 6:55 pm
OAK
-
OPO
27h 55m
2 stops
British Airways Logo
9:25 pm - 5:46 pm
OPO
-
OAK
28h 21m
2 stops
$1,064British Airways
Wed, Apr 8 - Mon, Apr 13
British Airways Logo
7:00 am - 6:55 pm
OAK
-
OPO
27h 55m
2 stops
British Airways Logo
9:30 pm - 11:43 pm
OPO
-
OAK
34h 13m
2 stops
$1,114British Airways
Wed, Apr 8 - Sun, Apr 12
KLM Logo
12:28 pm - 5:25 pm
OAK
-
FNC
44h 57m
2 stops
KLM Logo
10:20 am - 4:25 pm
FNC
-
OAK
38h 05m
2 stops
$5,885KLM
Sun, May 17 - Mon, May 25
KLM Logo
6:00 am - 5:25 pm
OAK
-
FNC
51h 25m
2 stops
KLM Logo
10:20 am - 4:25 pm
FNC
-
OAK
38h 05m
2 stops
$5,917KLM
Sun, May 17 - Mon, May 25

British Airways flights from Oakland, California to Portugal

Our best British Airways deals on Oakland, California to Portugal flight tickets
British Airways
Apr 14
OAK7:00 amOakland
32h 00m
2 stops
LIS11:00 pmLisbon Humberto Delgado
Apr 28
LIS6:45 pmLisbon Humberto Delgado
35h 47m
2 stops
OAK10:32 pmOakland
$724
British Airways
Apr 14
OAK7:00 amOakland
32h 00m
2 stops
LIS11:00 pmLisbon Humberto Delgado
May 18
LIS6:45 pmLisbon Humberto Delgado
37h 14m
2 stops
OAK11:59 pmOakland
$757
British Airways
Apr 8
OAK7:00 amOakland
27h 55m
2 stops
OPO6:55 pmPorto
Apr 13
OPO9:25 pmPorto
28h 21m
2 stops
OAK5:46 pmOakland
$1,064

Delta flights from Oakland, California to Portugal

Our best Delta deals on Oakland, California to Portugal flight tickets
Delta
Apr 7
OAK5:55 amOakland
42h 55m
2 stops
LIS8:50 amLisbon Humberto Delgado
Apr 14
LIS5:00 amLisbon Humberto Delgado
26h 54m
2 stops
OAK11:54 pmOakland
$626
Delta
Apr 15
OAK12:34 pmOakland
38h 21m
2 stops
LIS10:55 amLisbon Humberto Delgado
Apr 29
LIS5:00 amLisbon Humberto Delgado
19h 24m
2 stops
OAK4:24 pmOakland
$629
Delta
Apr 25
OAK5:55 pmOakland
39h 55m
2 stops
LIS5:50 pmLisbon Humberto Delgado
May 6
LIS5:00 amLisbon Humberto Delgado
26h 54m
2 stops
OAK11:54 pmOakland
$630

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 March 17, 2026.
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

Cheapest round-trip

OaklandLisbon

OAK - LIS

OAKLIS

Oakland

Tue 4/7

5:55 am-5:50 pm

2 stops27h 55m

Lisbon Humberto Delgado

Tue 4/14

7:45 pm-4:24 pm

2 stops28h 39m

$624

OaklandLisbon

OAK - LIS

OAKLIS

Oakland

Tue 4/7

5:55 am-8:50 am

2 stops42h 55m

Lisbon Humberto Delgado

Tue 4/14

5:00 am-11:54 pm

2 stops26h 54m

$626

OaklandLisbon

OAK - LIS

OAKLIS

Oakland

Wed 4/15

12:34 pm-10:55 am

2 stops38h 21m

Lisbon Humberto Delgado

Wed 4/29

5:00 am-4:24 pm

2 stops19h 24m

$629

OaklandLisbon

OAK - LIS

OAKLIS

Oakland

Sat 4/25

5:55 pm-5:50 pm

2 stops39h 55m

Lisbon Humberto Delgado

Wed 5/6

5:00 am-11:54 pm

2 stops26h 54m

$630

OaklandLisbon

OAK - LIS

OAKLIS

Oakland

Mon 4/6

4:49 pm-8:50 am

2 stops56h 01m

Lisbon Humberto Delgado

Tue 4/14

11:55 am-11:54 pm

2 stops43h 59m

$631

OaklandFaro

OAK - FAO

OAKFAO

Oakland

Thu 4/30

9:53 am-7:05 pm

2 stops25h 12m

Faro

Thu 5/7

1:20 pm-10:23 pm

2 stops41h 03m

$1,011
Quickest round-trip

OaklandPorto

OAK - OPO

OAKOPO

Oakland

Wed 4/8

7:00 am-6:55 pm

2 stops27h 55m

Porto

Mon 4/13

9:25 pm-5:46 pm

2 stops28h 21m

$1,064

OaklandPorto

OAK - OPO

OAKOPO

Oakland

Wed 4/8

7:00 am-6:55 pm

2 stops27h 55m

Porto

Sun 4/12

9:30 pm-11:43 pm

2 stops34h 13m

$1,114

OaklandFunchal

OAK - FNC

OAKFNC

Oakland

Sun 5/17

12:28 pm-5:25 pm

2 stops44h 57m

Funchal Madeira

Mon 5/25

10:20 am-4:25 pm

2 stops38h 05m

$5,885

OaklandFunchal

OAK - FNC

OAKFNC

Oakland

Sun 5/17

6:00 am-5:25 pm

2 stops51h 25m

Funchal Madeira

Mon 5/25

10:20 am-4:25 pm

2 stops38h 05m

$5,917

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 airline that flies from Oakland to Portugal?

Delta, KLM, and British Airways are the most popular carriers operating from Oakland to Portugal

What airlines fly to Portugal?

TAP AIR PORTUGAL, United Airlines and Air Canada are the top three most popular airlines that fly to Portugal from Oakland, California according to our data. TAP AIR PORTUGAL is the first choice among our users, with 55% of people opting to fly with this airline when traveling to Portugal. Keep in mind that there are 16 different airlines that fly to Portugal on a routine basis, so you have a few additional options to choose from.

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

Fastest flight time

17h 05m

Direct flights

None
The fastest flight from Oakland, California to Portugal takes 17h 05m
There are no direct flights from Oakland, California to Portugal. There are no popular flight routes from Oakland, California to Portugal.
Search flight deals

  • 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.

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

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