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$459+ Cheap flights from Oklahoma City (OKC) to Portugal

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 4/15. Fares are subject to change and may not be available on all flights or dates of travel.
OKC — LIS
Apr 15 — Apr 221
Wed 4/15
Wed 4/22
1 adult, Economy
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Cheap flight deals from Oklahoma City to Portugal

Cheapest flights from Oklahoma City to Portugal
Explore the most affordable flight options available from Oklahoma City to Portugal. Find the lowest fares from popular airlines and budget airlines, with prices last updated on March 16, 2026.

This United Airlines deal was found by Cheapflights users on 3/14. 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.
Tue 4/281:44 pm
OKC
-
LIS
2 stops17h 56m
United Airlines
Tue 5/51:00 pm
LIS
-
OKC
2 stops38h 27m
United Airlines
Deal found 3/14$619
This United Airlines deal was found by Cheapflights users on 3/13. 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 4/81:44 pm
OKC
-
LIS
2 stops17h 56m
United Airlines
Wed 4/2211:25 am
LIS
-
OKC
2 stops30h 38m
United Airlines
Deal found 3/13$684
This United Airlines deal was found by Cheapflights users on 3/13. 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.
Tue 10/276:00 am
OKC
-
LIS
2 stops22h 20m
United Airlines
Sun 11/85:00 am
LIS
-
OKC
2 stops21h 04m
United Airlines
Deal found 3/13$703
This Expedia deal was found by Cheapflights users on 3/13. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/2711:27 am
OKC
-
FNC
2 stops43h 28m
Iberia
Mon 5/41:20 pm
FNC
-
OKC
2 stops39h 38m
Iberia
Deal found 3/13$747
This American Airlines deal was found by Cheapflights users on 3/14. 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 10/165:32 pm
OKC
-
LIS
2 stops16h 03m
American Airlines
Tue 10/206:35 am
LIS
-
OKC
2 stops18h 23m
American Airlines
Deal found 3/14$752
This Air Canada deal was found by Cheapflights users on 3/15. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/206:00 am
OKC
-
LIS
2 stops47h 00m
Air Canada
Tue 9/291:00 pm
LIS
-
OKC
2 stops37h 03m
Air Canada
Deal found 3/15$779
This Air Canada deal was found by Cheapflights users on 3/15. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/215:04 pm
OKC
-
LIS
2 stops34h 16m
Air Canada
Tue 9/291:00 pm
LIS
-
OKC
2 stops33h 47m
Air Canada
Deal found 3/15$780
This Air Canada deal was found by Cheapflights users on 3/15. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/1912:35 pm
OKC
-
LIS
2 stops40h 25m
Air Canada
Tue 9/291:00 pm
LIS
-
OKC
2 stops33h 47m
Air Canada
Deal found 3/15$785
This United Airlines deal was found by Cheapflights users on 3/15. 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.
Tue 9/2211:31 am
OKC
-
LIS
2 stops17h 29m
United Airlines
Wed 9/3012:20 pm
LIS
-
OKC
2 stops28h 27m
United Airlines
Deal found 3/15$799
This Air Canada deal was found by Cheapflights users on 3/15. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/206:00 am
OKC
-
LIS
2 stops47h 00m
Air Canada
Wed 9/3011:25 am
LIS
-
OKC
2 stops35h 22m
Air Canada
Deal found 3/15$803
This Air Canada deal was found by Cheapflights users on 3/15. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/215:04 pm
OKC
-
LIS
2 stops34h 16m
Air Canada
Wed 9/3011:25 am
LIS
-
OKC
2 stops35h 22m
Air Canada
Deal found 3/15$804
This Air Canada deal was found by Cheapflights users on 3/15. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/1912:35 pm
OKC
-
LIS
2 stops40h 25m
Air Canada
Thu 10/111:25 am
LIS
-
OKC
2 stops53h 22m
Air Canada
Deal found 3/15$809

Find flight deals from Oklahoma City to Portugal

Keep the following information in mind while searching for Oklahoma City to Portugal flight deals. Data was last updated March 16, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$619
(United Airlines)

One-way from

$459
(oojo)

Popular in

May

Cheapest in

March

Average price

$451
Provider with most accurate pricing for Oklahoma City Will Rogers World-Lisbon Humberto Delgado flight deals.
Search Deals
Provider most trusted by Cheapflights users for Oklahoma City Will Rogers World-Lisbon Humberto Delgado flights.
Search Deals
From Oklahoma City Will Rogers World to Portugal
Search Deals
One-way flight from Oklahoma City Will Rogers World to Portugal
Search Deals
Highest demand for flights based on searches. 30% potential increase in price ($363 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 5% potential price decrease ($41 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in March 2026
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Oklahoma City 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 March 16, 2026.
Use the filters below to find and compare flights from Oklahoma City to Portugal that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

Oklahoma CityLisbon

OKC - LIS

OKCLIS

Oklahoma City Will Rogers World

Tue 4/28

1:44 pm-1:40 pm

2 stops17h 56m

Lisbon Humberto Delgado

Tue 5/5

1:00 pm-9:27 pm

2 stops38h 27m

$619

Oklahoma CityLisbon

OKC - LIS

OKCLIS

Oklahoma City Will Rogers World

Wed 4/8

1:44 pm-1:40 pm

2 stops17h 56m

Lisbon Humberto Delgado

Wed 4/22

11:25 am-12:03 pm

2 stops30h 38m

$684

Oklahoma CityFunchal

OKC - FNC

OKCFNC

Oklahoma City Will Rogers World

Mon 4/27

11:27 am-12:55 pm

2 stops43h 28m

Funchal Madeira

Mon 5/4

1:20 pm-10:58 pm

2 stops39h 38m

$747

Oklahoma CityFaro

OKC - FAO

OKCFAO

Oklahoma City Will Rogers World

Fri 4/17

10:25 am-2:45 pm

2 stops22h 20m

Faro

Tue 4/21

3:25 pm-7:42 pm

2 stops34h 17m

$822

Oklahoma CityLisbon

OKC - LIS

OKCLIS

Oklahoma City Will Rogers World

Mon 6/1

7:05 pm-11:00 am

2 stops33h 55m

Lisbon Humberto Delgado

Wed 9/30

12:20 pm-11:31 am

2 stops29h 11m

$912

Oklahoma CityFunchal

OKC - FNC

OKCFNC

Oklahoma City Will Rogers World

Mon 4/27

11:27 am-6:35 pm

3 stops25h 08m

Funchal Madeira

Mon 5/4

1:20 pm-10:37 am

3 stops27h 17m

$1,040

Oklahoma CityLisbon

OKC - LIS

OKCLIS

Oklahoma City Will Rogers World

Mon 6/1

7:05 pm-11:00 am

2 stops33h 55m

Lisbon Humberto Delgado

Mon 6/15

1:00 pm-4:15 pm

2 stops33h 15m

$1,064

Oklahoma CityLisbon

OKC - LIS

OKCLIS

Oklahoma City Will Rogers World

Thu 6/18

7:05 pm-11:00 am

2 stops33h 55m

Lisbon Humberto Delgado

Mon 6/22

11:25 am-5:02 pm

2 stops35h 37m

$1,116
Quickest round-trip

Oklahoma CityLisbon

OKC - LIS

OKCLIS

Oklahoma City Will Rogers World

Wed 6/10

7:00 am-8:50 am

2 stops19h 50m

Lisbon Humberto Delgado

Mon 6/15

10:00 am-9:30 pm

1 stop17h 30m

$1,117

Oklahoma CityFunchal

OKC - FNC

OKCFNC

Oklahoma City Will Rogers World

Sun 4/26

1:41 pm-12:40 pm

2 stops16h 59m

Funchal Madeira

Sun 5/3

11:20 am-9:44 pm

2 stops40h 24m

$1,133

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/11

Showing 1-10 of 24 resultsSorted by cheapest first
1
2
3

Best time to book a flight from Oklahoma City to Portugal

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

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

Currently, March is the cheapest month in which you can book a flight from Oklahoma City to Portugal (average of $451). Flying from Oklahoma City to Portugal in May is currently the most expensive (average of $980). 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.

Reviews of airlines servicing Portugal

Get insights into the airlines that provide service to Portugal. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Portugal. Reviews last updated March 16, 2026.
See what other customers who have flown with United Airlines,American Airlines, andBritish Airways from Oklahoma City to Portugal have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
United Airlines
7.4
Good
9,427 reviews

Overall

7.4

Comfort

7.3

Entertainment

7.1

Boarding

7.7

Crew

8.1

Food

6.6

Reviews

1 / 20
10.0
Excellent

Dane,Jan 2026

TYS - IAD

It was a short flight, so no time for amenities. Just glad everything was quick and easy from boarding to arriving at my destination with my family
United Airlines
7.4
Good
9,427 reviews
United Airlines
7.4
Good
9,427 reviews

Overall

7.4

Comfort

7.3

Entertainment

7.1

Boarding

7.7

Crew

8.1

Food

6.6

Reviews

1 / 20
10.0
Excellent

Dane,Jan 2026

TYS - IAD

It was a short flight, so no time for amenities. Just glad everything was quick and easy from boarding to arriving at my destination with my family
American Airlines
7.1
Good
11,465 reviews
United Airlines
7.4
Good
9,427 reviews

Overall

7.4

Comfort

7.3

Entertainment

7.1

Boarding

7.7

Crew

8.1

Food

6.6

Reviews

1 / 20
10.0
Excellent

Dane,Jan 2026

TYS - IAD

It was a short flight, so no time for amenities. Just glad everything was quick and easy from boarding to arriving at my destination with my family
British Airways
6.7
Okay
7,794 reviews
United Airlines
7.4
Good
9,427 reviews

Overall

7.4

Comfort

7.3

Entertainment

7.1

Boarding

7.7

Crew

8.1

Food

6.6

Reviews

1 / 20
10.0
Excellent

Dane,Jan 2026

TYS - IAD

It was a short flight, so no time for amenities. Just glad everything was quick and easy from boarding to arriving at my destination with my family

Related info for your journey

Find useful and relevant information for your journey from Oklahoma City 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 Oklahoma City to Portugal?

    Oklahoma City Will Rogers World (OKC), located 7.0 mi from the city center, is the airport you fly out of when you book flights from Oklahoma City to Portugal.

  • How long is the flight from Oklahoma City to Portugal?

    There are many flights that can get you from Oklahoma City to Portugal in 17h 56m. Fly via United Airlines or Iberia to get the fastest option. There are 4673 mi between Oklahoma City and Portugal. This flight may include one or multiple stops.

  • What are the most popular routes from Oklahoma City to Portugal?

    The most popular flight routes from Oklahoma City to Portugal are Oklahoma City Will Rogers World - Lisbon Humberto Delgado, Oklahoma City Will Rogers World - Faro and Oklahoma City Will Rogers World - Funchal Madeira.

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

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

  • How can I find direct flights from Oklahoma City to Portugal?

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

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

    Yes. Cheapflights offers flight deals from Oklahoma City 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 Oklahoma City to Portugal?

    Currently, March is the cheapest month in which you can book a flight from Oklahoma City to Portugal (average of $451). Flying from Oklahoma City to Portugal in May is currently the most expensive (average of $980). 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

Browse thousands of different options on Cheapflights for your next trip

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Top 3 airlines flying from Oklahoma City to Portugal

Discover the top 3 airlines that operate flights from Oklahoma City to Portugal. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated March 16, 2026.
AirlineCheapestAverageFlexibilityOn-time
British AirwaysCheapest$471Average$540FlexibilityNo cancel feeOn-time70%
American AirlinesCheapest$519Average$1,066FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$609Average$1,088FlexibilityNo cancel feeOn-time69%

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