What is the cheapest airline that flies from Oklahoma to Portugal?

British Airways, United Airlines, and KLM are the most popular carriers operating from Oklahoma to Portugal

What airlines fly to Portugal?

Iberia, United Airlines and British Airways are the top three most popular airlines that fly to Portugal from Oklahoma according to our data. Iberia is the first choice among our users, with 35% of people opting to fly with this airline when traveling to Portugal. Keep in mind that there are 4 different airlines that fly to Portugal on a routine basis, so you have a few additional options to choose from.

How long is the flight from Oklahoma to Portugal?

Average flight duration from Oklahoma to Portugal depends on which airport you fly into and out of. Flying from Oklahoma City to Lisbon is 16h 15m on average, while flying from Tulsa to Lisbon is 17h 58m on average. Lisbon is the most popular airport in Portugal.

When did momondo last update prices for flights from Oklahoma to Portugal?

Prices for flights from Oklahoma to Portugal are refreshed on a daily basis.

How many operators does momondo search for flights from Oklahoma to Portugal?

As of May 2026, there are 11 operators available to choose from for flights from Oklahoma to Portugal.

How old do you have to be to fly from Oklahoma to Portugal?

The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Oklahoma 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.

$324 Cheap Flights from Oklahoma to Portugal in 2026

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Find the cheapest flights from Oklahoma to Portugal

Round-trip

One-way

Last minute

Cheap round-trip flights

Enter your travel dates to find the best prices.

9:30 pm - 3:45 pm

DFW

OPO

36h 15m

1 stop

11:00 am - 7:35 pm

OPO

DFW

38h 35m

1 stop

$786Turkish Airlines

Wed, Sep 16 - Thu, Sep 24

12:35 pm - 9:50 am

OKC

LIS

16h 15m

2 stops

1:00 pm - 11:41 pm

LIS

OKC

40h 41m

2 stops

$805Air Canada

Tue, Oct 27 - Sun, Nov 8

11:25 am - 8:00 am

OKC

LIS

15h 35m

2 stops

11:15 am - 11:59 pm

LIS

OKC

18h 44m

2 stops

$821Multiple Airlines

Tue, Oct 27 - Sun, Nov 8

12:35 pm - 9:50 am

OKC

LIS

16h 15m

3 stops

11:20 am - 11:46 am

LIS

OKC

30h 26m

2 stops

$838Multiple Airlines

Tue, Oct 27 - Sun, Nov 8

9:22 am - 9:20 am

TUL

LIS

17h 58m

2 stops

11:25 am - 6:23 pm

LIS

TUL

36h 58m

2 stops

$844United Airlines

Tue, Sep 22 - Tue, Sep 29

6:00 am - 9:45 am

DFW

OPO

21h 45m

1 stop

12:15 pm - 5:18 pm

OPO

DFW

35h 03m

2 stops

$855United Airlines

Wed, Oct 14 - Tue, Oct 20

7:40 pm - 12:20 pm

DFW

FNC

34h 40m

1 stop

12:20 pm - 5:05 pm

FNC

DFW

34h 45m

1 stop

$889British Airways

Wed, Aug 12 - Tue, Sep 8

1:00 pm - 7:30 pm

OKC

FAO

24h 30m

2 stops

8:20 pm - 8:30 pm

FAO

OKC

30h 10m

2 stops

$910KLM

Tue, Sep 1 - Wed, Sep 9

7:40 pm - 12:20 pm

DFW

FNC

34h 40m

1 stop

6:55 pm - 5:05 pm

FNC

DFW

28h 10m

1 stop

$921British Airways

Wed, Aug 12 - Mon, Sep 7

6:15 pm - 9:05 pm

OKC

FAO

20h 50m

2 stops

8:55 pm - 11:51 pm

FAO

OKC

32h 56m

2 stops

$1,021KLM

Fri, Sep 18 - Fri, Sep 25

Lufthansa flights from Oklahoma to Portugal

Our best Lufthansa deals on Oklahoma to Portugal flight tickets

Lufthansa

May 9

DFW4:00 pmDallas/Fort Worth

24h 10m

1 stop

LIS10:10 pmLisbon Humberto Delgado

May 22

LIS5:05 amLisbon Humberto Delgado

15h 10m

1 stop

DFW2:15 pmDallas/Fort Worth

$923

Lufthansa

May 10

DFW4:00 pmDallas/Fort Worth

17h 30m

1 stop

LIS3:30 pmLisbon Humberto Delgado

May 23

LIS5:05 amLisbon Humberto Delgado

15h 10m

1 stop

DFW2:15 pmDallas/Fort Worth

$931

Lufthansa

Jul 8

DFW4:00 pmDallas/Fort Worth

24h 15m

1 stop

LIS10:15 pmLisbon Humberto Delgado

Jul 15

LIS5:05 amLisbon Humberto Delgado

15h 10m

1 stop

DFW2:15 pmDallas/Fort Worth

$941

Delta flights from Oklahoma to Portugal

Our best Delta deals on Oklahoma to Portugal flight tickets

Delta

Oct 25

DFW5:05 pmDallas/Fort Worth

12h 25m

1 stop

OPO10:30 amPorto

Nov 8

OPO5:00 amPorto

22h 07m

2 stops

DFW9:07 pmDallas/Fort Worth

$892

Delta

Oct 25

DFW7:40 pmDallas/Fort Worth

14h 45m

2 stops

OPO3:25 pmPorto

Nov 8

OPO5:00 amPorto

22h 07m

2 stops

DFW9:07 pmDallas/Fort Worth

$901

Delta

Jul 7

DFW3:34 pmDallas/Fort Worth

17h 21m

2 stops

LIS2:55 pmLisbon Humberto Delgado

Jul 17

LIS5:00 amLisbon Humberto Delgado

23h 32m

2 stops

DFW10:32 pmDallas/Fort Worth

$937

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

DallasPorto

DFW - OPO

DFWOPO

Dallas/Fort Worth

Wed 9/16

9:30 pm-3:45 pm

1 stop36h 15m

Porto

Thu 9/24

11:00 am-7:35 pm

1 stop38h 35m

$786

Oklahoma CityLisbon

OKC - LIS

OKCLIS

Oklahoma City Will Rogers World

Tue 10/27

12:35 pm-9:50 am

2 stops16h 15m

Lisbon Humberto Delgado

Sun 11/8

1:00 pm-11:41 pm

2 stops40h 41m

$805

Quickest round-trip

Oklahoma CityLisbon

OKC - LIS

OKCLIS

Oklahoma City Will Rogers World

Tue 10/27

11:25 am-8:00 am

2 stops15h 35m

Lisbon Humberto Delgado

Sun 11/8

11:15 am-11:59 pm

2 stops18h 44m

$821

Oklahoma CityLisbon

OKC - LIS

OKCLIS

Oklahoma City Will Rogers World

Tue 10/27

12:35 pm-9:50 am

3 stops16h 15m

Lisbon Humberto Delgado

Sun 11/8

11:20 am-11:46 am

2 stops30h 26m

$838

TulsaLisbon

TUL - LIS

TULLIS

Tulsa

Tue 9/22

9:22 am-9:20 am

2 stops17h 58m

Lisbon Humberto Delgado

Tue 9/29

11:25 am-6:23 pm

2 stops36h 58m

$844

DallasPorto

DFW - OPO

DFWOPO

Dallas/Fort Worth

Wed 10/14

6:00 am-9:45 am

1 stop21h 45m

Porto

Tue 10/20

12:15 pm-5:18 pm

2 stops35h 03m

$855

DallasFunchal

DFW - FNC

DFWFNC

Dallas/Fort Worth

Wed 8/12

7:40 pm-12:20 pm

1 stop34h 40m

Funchal Madeira

Tue 9/8

12:20 pm-5:05 pm

1 stop34h 45m

$889

Oklahoma CityFaro

OKC - FAO

OKCFAO

Oklahoma City Will Rogers World

Tue 9/1

1:00 pm-7:30 pm

2 stops24h 30m

Faro

Wed 9/9

8:20 pm-8:30 pm

2 stops30h 10m

$910

DallasFunchal

DFW - FNC

DFWFNC

Dallas/Fort Worth

Wed 8/12

7:40 pm-12:20 pm

1 stop34h 40m

Funchal Madeira

Mon 9/7

6:55 pm-5:05 pm

1 stop28h 10m

$921

Oklahoma CityFaro

OKC - FAO

OKCFAO

Oklahoma City Will Rogers World

Fri 9/18

6:15 pm-9:05 pm

2 stops20h 50m

Faro

Fri 9/25

8:55 pm-11:51 pm

2 stops32h 56m

$1,021

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

How to get the cheapest flight ticket from Oklahoma 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

Prices

Airlines

Other information

What is the cheapest month to fly to Portugal?

The cheapest month to fly to Portugal from Oklahoma is in September. Flight prices, which tend to average around $424, are often lower during this time because this is during the off-season. If you aren’t able to travel during the month of September, then book flights to Portugal from Oklahoma during March instead. Flights to Portugal in March, while not as cheap as those in September, still average around $451.

Cheap Oklahoma to Portugal flight deals and tips

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

Fastest flight time	12h 15m
Direct flights	None

The fastest flight from Oklahoma to Portugal takes 12h 15m

There are no direct flights from Oklahoma to Portugal. There are no popular flight routes from Oklahoma to Portugal.

Search flight deals

Frequently asked questions about flying from Oklahoma to Portugal

When did momondo last update prices for flights from Oklahoma to Portugal?
Prices for flights from Oklahoma to Portugal are refreshed on a daily basis.
How many operators does momondo search for flights from Oklahoma to Portugal?
As of May 2026, there are 11 operators available to choose from for flights from Oklahoma to Portugal.
How old do you have to be to fly from Oklahoma to Portugal?
The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Oklahoma 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.

Best airlines flying from Oklahoma to Portugal

Compare and see reviews for airlines that fly from Oklahoma to Portugal with momondo

Airline	Rating	Free Cancellation	Price
Iberia	PriceFrom $424	Free Cancellation	Rating 7.0 3,212 reviews	Search Iberia flights
British Airways	PriceFrom $458	Free Cancellation	Rating 6.7 7,944 reviews	Search British Airways flights
United Airlines	PriceFrom $487	Free Cancellation	Rating 7.4 9,684 reviews	Search United Airlines flights
American Airlines	PriceFrom $519	Free Cancellation	Rating 7.1 11,667 reviews	Search American Airlines flights

Why use momondo?

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

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

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

Yes. All flights to Portugal from Oklahoma on momondo can be compared and filtered by various policies on offer, including flexible booking.

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

momondo provides multiple filters to help you find the best flight to Portugal from Oklahoma. Filter by price, airline, airports, cabin, aircraft, payment method, number of stops and more.

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

If you are simply researching potential flights to Portugal, momondo offers a useful price alert feature which will track prices for flights to Portugal from Oklahoma and alert you when they change.

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Popular cities

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Complete your trip

Feeling lucky

Popular cities in Portugal

Flights to Lisbonfrom $434

Flights to Portofrom $426

Flights to Funchalfrom $594

Flights to Farofrom $579

Flights to Ponta Delgadafrom $630

Flights to Lajesfrom $694

Flights to Pico Islandfrom $628

Flights to Hortafrom $779

Flights to Porto Santofrom $845

Flights to Velasfrom $754

Cheap flights from Oklahoma to Portugal from $324

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Oklahoma to Portugal departing on 10/13. 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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Lufthansa flights from Oklahoma to Portugal

Our best Lufthansa deals on Oklahoma to Portugal flight tickets

Delta flights from Oklahoma to Portugal

Our best Delta deals on Oklahoma to Portugal flight tickets

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How to get the cheapest flight ticket from Oklahoma to Portugal

What is the cheapest month to fly to Portugal?

What is the cheapest airline that flies from Oklahoma to Portugal?

What airlines fly to Portugal?

How long is the flight from Oklahoma to Portugal?

Cheap Oklahoma to Portugal flight deals and tips

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

Fastest flight time

Direct flights

Frequently asked questions about flying from Oklahoma to Portugal

Best airlines flying from Oklahoma to Portugal

Compare and see reviews for airlines that fly from Oklahoma to Portugal with momondo

Why use momondo?

An easier way to manage your Portugal trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.

Find better results for your trip to Portugal

Popular cities in Portugal

Popular flights according to clicks in the last 7 days on momondo

Oklahoma flight routes

According to popular flight searches on momondo this year

Portugal flight routes

According to popular flight searches on momondo this year

Fly your favorite airline to Portugal

Airlines are sorted and displayed according to clicks in the past 7 days on momondo

Cabin classes currently available on flights to Portugal

List of cabin classes available on flights landing in Portugal. Availability may vary depending on flight origin and airline.

Complete your trip to Portugal

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According to popular flight searches on momondo this year