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

United Airlines, Air Canada, and Lufthansa are the most popular carriers operating from Oklahoma to Portugal

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 45m on average, while flying from Tulsa to Lisbon is 18h 28m on average. Lisbon is the most popular airport in Portugal.

What airlines fly to Portugal?

United Airlines, British Airways and American Airlines are the top three most popular airlines that fly to Portugal from Oklahoma according to our data. United Airlines is the first choice among our users, with 45% 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.

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 February 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.

$217 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.

11:30 am - 8:10 am

OKC

LIS

14h 40m

2 stops

5:00 am - 6:47 pm

LIS

OKC

18h 47m

2 stops

$497United Airlines

Tue, Mar 3 - Tue, Mar 10

2:45 pm - 10:15 am

OKC

LIS

13h 30m

2 stops

5:00 am - 10:08 pm

LIS

OKC

23h 08m

2 stops

$501United Airlines

Wed, Mar 4 - Sun, Mar 8

6:01 pm - 11:30 pm

OKC

LIS

24h 29m

2 stops

5:00 am - 10:30 pm

LIS

OKC

22h 30m

2 stops

$505United Airlines

Tue, Mar 10 - Tue, Mar 17

10:59 pm - 11:10 pm

DFW

LIS

18h 11m

1 stop

8:25 am - 8:10 pm

LIS

DFW

17h 45m

1 stop

$515Multiple Airlines

Fri, Apr 10 - Fri, Apr 17

11:23 am - 2:35 pm

DFW

LIS

21h 12m

2 stops

10:00 am - 9:43 pm

LIS

DFW

17h 43m

1 stop

$519Delta

Sun, Feb 15 - Fri, Feb 27

1:41 pm - 9:05 am

DFW

LIS

13h 24m

1 stop

12:55 pm - 9:11 am

LIS

DFW

25h 16m

2 stops

$520British Airways

Tue, Feb 24 - Tue, Mar 24

4:50 pm - 3:50 pm

DFW

LIS

17h 00m

1 stop

4:35 pm - 3:05 pm

LIS

DFW

28h 30m

1 stop

$521Finnair

Wed, Apr 15 - Sun, Apr 26

4:33 pm - 10:15 pm

OKC

LIS

23h 42m

2 stops

11:25 am - 8:33 pm

LIS

OKC

39h 08m

2 stops

$526Multiple Airlines

Wed, Apr 8 - Tue, Apr 14

3:45 pm - 4:15 pm

DFW

FNC

18h 30m

1 stop

12:50 pm - 1:40 pm

FNC

DFW

29h 50m

1 stop

$567British Airways

Sun, Mar 1 - Sun, Mar 8

8:05 am - 10:30 am

DFW

OPO

20h 25m

2 stops

5:00 am - 11:13 pm

OPO

DFW

23h 13m

2 stops

$594Delta

Wed, Mar 4 - Wed, Mar 11

United Airlines flights from Oklahoma to Portugal

Our best United Airlines deals on Oklahoma to Portugal flight tickets

United Airlines

Mar 3

OKC11:30 amOklahoma City Will Rogers World

14h 40m

2 stops

LIS8:10 amLisbon Humberto Delgado

Mar 10

LIS5:00 amLisbon Humberto Delgado

18h 47m

2 stops

OKC6:47 pmOklahoma City Will Rogers World

$497

United Airlines

Mar 4

OKC2:45 pmOklahoma City Will Rogers World

13h 30m

2 stops

LIS10:15 amLisbon Humberto Delgado

Mar 8

LIS5:00 amLisbon Humberto Delgado

23h 08m

2 stops

OKC10:08 pmOklahoma City Will Rogers World

$501

United Airlines

Mar 10

OKC6:01 pmOklahoma City Will Rogers World

24h 29m

2 stops

LIS11:30 pmLisbon Humberto Delgado

Mar 17

LIS5:00 amLisbon Humberto Delgado

22h 30m

2 stops

OKC10:30 pmOklahoma City Will Rogers World

$505

Delta flights from Oklahoma to Portugal

Our best Delta deals on Oklahoma to Portugal flight tickets

Delta

Feb 15

DFW11:23 amDallas/Fort Worth

21h 12m

2 stops

LIS2:35 pmLisbon Humberto Delgado

Feb 27

LIS10:00 amLisbon Humberto Delgado

17h 43m

1 stop

DFW9:43 pmDallas/Fort Worth

$519

Delta

Mar 4

DFW8:05 amDallas/Fort Worth

21h 15m

2 stops

LIS11:20 amLisbon Humberto Delgado

Mar 13

LIS10:55 amLisbon Humberto Delgado

35h 42m

2 stops

DFW5:37 pmDallas/Fort Worth

$528

Delta

Apr 13

DFW6:56 pmDallas/Fort Worth

33h 49m

1 stop

LIS10:45 amLisbon Humberto Delgado

Apr 23

LIS10:00 amLisbon Humberto Delgado

30h 21m

2 stops

DFW10:21 amDallas/Fort Worth

$529

Fly from

Fly to

Route

Depart

Return

Price

Oklahoma CityLisbon

OKC - LIS

OKCLIS

Oklahoma City Will Rogers World

Tue 3/3

11:30 am-8:10 am

2 stops14h 40m

Lisbon Humberto Delgado

Tue 3/10

5:00 am-6:47 pm

2 stops18h 47m

$497

Oklahoma CityLisbon

OKC - LIS

OKCLIS

Oklahoma City Will Rogers World

Wed 3/4

2:45 pm-10:15 am

2 stops13h 30m

Lisbon Humberto Delgado

Sun 3/8

5:00 am-10:08 pm

2 stops23h 08m

$501

Oklahoma CityLisbon

OKC - LIS

OKCLIS

Oklahoma City Will Rogers World

Tue 3/10

6:01 pm-11:30 pm

2 stops24h 29m

Lisbon Humberto Delgado

Tue 3/17

5:00 am-10:30 pm

2 stops22h 30m

$505

DallasLisbon

DFW - LIS

DFWLIS

Dallas/Fort Worth

Fri 4/10

10:59 pm-11:10 pm

1 stop18h 11m

Lisbon Humberto Delgado

Fri 4/17

8:25 am-8:10 pm

1 stop17h 45m

$515

DallasLisbon

DFW - LIS

DFWLIS

Dallas/Fort Worth

Sun 2/15

11:23 am-2:35 pm

2 stops21h 12m

Lisbon Humberto Delgado

Fri 2/27

10:00 am-9:43 pm

1 stop17h 43m

$519

DallasLisbon

DFW - LIS

DFWLIS

Dallas/Fort Worth

Tue 2/24

1:41 pm-9:05 am

1 stop13h 24m

Lisbon Humberto Delgado

Tue 3/24

12:55 pm-9:11 am

2 stops25h 16m

$520

DallasLisbon

DFW - LIS

DFWLIS

Dallas/Fort Worth

Wed 4/15

4:50 pm-3:50 pm

1 stop17h 00m

Lisbon Humberto Delgado

Sun 4/26

4:35 pm-3:05 pm

1 stop28h 30m

$521

Oklahoma CityLisbon

OKC - LIS

OKCLIS

Oklahoma City Will Rogers World

Wed 4/8

4:33 pm-10:15 pm

2 stops23h 42m

Lisbon Humberto Delgado

Tue 4/14

11:25 am-8:33 pm

2 stops39h 08m

$526

DallasFunchal

DFW - FNC

DFWFNC

Dallas/Fort Worth

Sun 3/1

3:45 pm-4:15 pm

1 stop18h 30m

Funchal Madeira

Sun 3/8

12:50 pm-1:40 pm

1 stop29h 50m

$567

DallasPorto

DFW - OPO

DFWOPO

Dallas/Fort Worth

Wed 3/4

8:05 am-10:30 am

2 stops20h 25m

Porto

Wed 3/11

5:00 am-11:13 pm

2 stops23h 13m

$594

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 October. Flight prices, which tend to average around $474, are often lower during this time because this is during the off-season. If you aren’t able to travel during the month of October, then book flights to Portugal from Oklahoma during February instead. Flights to Portugal in February, while not as cheap as those in October, still average around $540.

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	10h 46m
Direct flights	None

The fastest flight from Oklahoma to Portugal takes 10h 46m

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

Search flight deals

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 February 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
British Airways	PriceFrom $458	Free Cancellation	Rating 6.7 7,711 reviews	Search British Airways flights
United Airlines	PriceFrom $487	Free Cancellation	Rating 7.4 9,231 reviews	Search United Airlines flights
American Airlines	PriceFrom $683	Free Cancellation	Rating 7.2 11,212 reviews	Search American Airlines flights
Iberia	PriceFrom $696	Free Cancellation	Rating 7.0 3,101 reviews	Search Iberia 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.