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Portugal

$233+ Cheap flights from Oklahoma 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 10/13. Fares are subject to change and may not be available on all flights or dates of travel.
OKC — LIS
Aug 7 — Aug 141
Thu 8/7
Thu 8/14
1 adult, Economy
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Cheap flight deals from Oklahoma to Portugal

Keep the following information in mind while searching for Oklahoma to Portugal flight deals. Data was last updated August 2, 2025.

Round-trip from

$590
(United Airlines)

One-way from

$233
(United Airlines)

Popular in

June

Cheapest in

January

Average price

$968
From Oklahoma to Portugal
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One-way flight from Oklahoma to Portugal
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Highest demand for flights based on searches. 28% potential increase in price ($402 potential increase over avg. RT price).
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Cheapest flight prices on average. 6% potential price decrease ($66 potential savings vs. average RT price).
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Average for round-trip flights in August 2025
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Find flight deals from Oklahoma to Portugal

Cheapest flights from Oklahoma to Portugal
Explore the most affordable flight options available from Oklahoma to Portugal. Find the lowest fares from popular airlines and budget airlines, with prices last updated on August 2, 2025.

This United Airlines deal was found by Cheapflights users on 8/1. 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.
Mon 11/32:26 pmDFW - OPO
2 stops13h 04mUnited Airlines
Wed 11/126:00 amOPO - DFW
2 stops38h 57mUnited Airlines
Deal found 8/1$590
This Iberia deal was found by Cheapflights users on 7/31. 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 Iberia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/259:45 pmDFW - FNC
1 stop31h 50mIberia
Thu 10/91:05 pmFNC - DFW
1 stop37h 05mIberia
Deal found 7/31$610
This Cheapflightsfares deal was found by Cheapflights users on 8/1. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/35:20 pmDFW - OPO
1 stop12h 25mIberia
Wed 11/128:40 pmOPO - DFW
1 stop14h 50mIberia
Deal found 8/1$612
This Lufthansa deal was found by Cheapflights users on 7/31. 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 Lufthansa is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/234:15 pmDFW - OPO
1 stop24h 10mLufthansa
Mon 12/112:30 pmOPO - DFW
1 stop31h 55mLufthansa
Deal found 7/31$620
This Priceline deal was found by Cheapflights users on 8/1. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/149:25 amDFW - OPO
2 stops20h 05mAir Canada
Tue 10/216:00 amOPO - DFW
2 stops21h 43mAir Canada
Deal found 8/1$625
This American Airlines deal was found by Cheapflights users on 8/1. 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.
Tue 10/1410:31 amDFW - OPO
2 stops15h 04mAmerican Airlines
Tue 10/2112:20 pmOPO - DFW
1 stop13h 50mAmerican Airlines
Deal found 8/1$628
This Booking.com deal was found by Cheapflights users on 8/1. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/209:25 amDFW - OPO
1 stop18h 10mMultiple Airlines
Fri 10/34:35 pmOPO - DFW
1 stop27h 30mMultiple Airlines
Deal found 8/1$630
This United Airlines deal was found by Cheapflights users on 7/31. 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 10/149:25 amDFW - LIS
2 stops19h 40mUnited Airlines
Thu 10/2311:25 amLIS - DFW
3 stops38h 26mUnited Airlines
Deal found 7/31$631
This CheapOair deal was found by Cheapflights users on 7/31. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/19:35 pmDFW - LIS
1 stop19h 55mBritish Airways
Mon 11/103:50 pmLIS - DFW
2 stops29h 10mBritish Airways
Deal found 7/31$634
This Air Canada deal was found by Cheapflights users on 8/1. 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 11/247:25 pmDFW - LIS
2 stops31h 55mAir Canada
Thu 11/2710:55 amLIS - DFW
2 stops37h 34mAir Canada
Deal found 8/1$639
This Delta deal was found by Cheapflights users on 7/31. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/237:00 amDFW - OPO
2 stops21h 30mDelta
Mon 12/111:25 amOPO - DFW
2 stops37h 10mDelta
Deal found 7/31$639
This Mytrip deal was found by Cheapflights users on 7/30. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/1711:40 amDFW - LIS
2 stops26h 20mMultiple Airlines
Mon 10/2010:45 pmLIS - DFW
2 stops28h 58mMultiple Airlines
Deal found 7/30$640

Cheapflights Fare Finder

 
Customize your flight search to find flights from Oklahoma 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 August 2, 2025.
Use the filters below to find and compare flights from Oklahoma to Portugal that are best for you.

Fly from

Oklahoma

Fly to

Portugal

Route

Depart

Return

Price

DallasPorto

DFW - OPO

DFWOPO

Dallas/Fort Worth

Mon 11/3

2:26 pm-9:30 am

2 stops13h 04m

Porto

Wed 11/12

6:00 am-2:57 pm

2 stops38h 57m

$590

DallasFunchal

DFW - FNC

DFWFNC

Dallas/Fort Worth

Thu 9/25

9:45 pm-11:35 am

1 stop31h 50m

Funchal Madeira

Thu 10/9

1:05 pm-8:10 pm

1 stop37h 05m

$610

DallasPorto

DFW - OPO

DFWOPO

Dallas/Fort Worth

Mon 11/3

5:20 pm-11:45 am

1 stop12h 25m

Porto

Wed 11/12

8:40 pm-5:30 am

1 stop14h 50m

$612

DallasPorto

DFW - OPO

DFWOPO

Dallas/Fort Worth

Sun 11/23

4:15 pm-10:25 pm

1 stop24h 10m

Porto

Mon 12/1

12:30 pm-2:25 pm

1 stop31h 55m

$620

DallasPorto

DFW - OPO

DFWOPO

Dallas/Fort Worth

Tue 10/14

9:25 am-11:30 am

2 stops20h 05m

Porto

Tue 10/21

6:00 am-9:43 pm

2 stops21h 43m

$625

DallasPorto

DFW - OPO

DFWOPO

Dallas/Fort Worth

Tue 10/14

10:31 am-7:35 am

2 stops15h 04m

Porto

Tue 10/21

12:20 pm-8:10 pm

1 stop13h 50m

$628

DallasPorto

DFW - OPO

DFWOPO

Dallas/Fort Worth

Sat 9/20

9:25 am-9:35 am

1 stop18h 10m

Porto

Fri 10/3

4:35 pm-2:05 pm

1 stop27h 30m

$630

DallasLisbon

DFW - LIS

DFWLIS

Dallas/Fort Worth

Tue 10/14

9:25 am-11:05 am

2 stops19h 40m

Lisbon Humberto Delgado

Thu 10/23

11:25 am-7:51 pm

3 stops38h 26m

$631

DallasPorto

DFW - OPO

DFWOPO

Dallas/Fort Worth

Sun 11/23

7:00 am-10:30 am

2 stops21h 30m

Porto

Mon 12/1

11:25 am-6:35 pm

2 stops37h 10m

$639

DallasLisbon

DFW - LIS

DFWLIS

Dallas/Fort Worth

Fri 10/17

11:40 am-8:00 pm

2 stops26h 20m

Lisbon Humberto Delgado

Mon 10/20

10:45 pm-9:43 pm

2 stops28h 58m

$640

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/31

Showing 1-10 of 45 results
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Best time to book a flight from Oklahoma to Portugal

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

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

Currently, January is the cheapest month in which you can book a flight from Oklahoma to Portugal (average of $612). Flying from Oklahoma to Portugal in June is currently the most expensive (average of $1,129). 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.

What is the cheapest time of day to fly from OK to PT?

Find hourly flight availability from Oklahoma to Portugal. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated August 2, 2025.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Oklahoma to Portugal as you normally would.

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 August 2, 2025.
Get a feel of what it's like to fly with Delta, KLM, and Finnair from Oklahoma to Portugal by reading reviews from past customers. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
7,983 reviews

Comfort

7.9

Entertainment

7.9

Boarding

8.2

Food

7.3

Crew

8.5

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
Delta
8.0
Very good
7,983 reviews
Delta
8.0
Very good
7,983 reviews

Comfort

7.9

Entertainment

7.9

Boarding

8.2

Food

7.3

Crew

8.5

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
KLM
7.8
Good
1,384 reviews
Delta
8.0
Very good
7,983 reviews

Comfort

7.9

Entertainment

7.9

Boarding

8.2

Food

7.3

Crew

8.5

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
Finnair
7.6
Good
1,317 reviews
Delta
8.0
Very good
7,983 reviews

Comfort

7.9

Entertainment

7.9

Boarding

8.2

Food

7.3

Crew

8.5

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
SWISS
7.5
Good
1,686 reviews
Delta
8.0
Very good
7,983 reviews

Comfort

7.9

Entertainment

7.9

Boarding

8.2

Food

7.3

Crew

8.5

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
United Airlines
7.4
Good
8,904 reviews
Delta
8.0
Very good
7,983 reviews

Comfort

7.9

Entertainment

7.9

Boarding

8.2

Food

7.3

Crew

8.5

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

Related info for your journey

Find useful and relevant information for your journey from Oklahoma to Portugal. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What are the cheapest airlines to fly from Oklahoma to Portugal one-way?

    The cheapest airline one-way is United Airlines, with whom users have recently found tickets for as low as $233. However, be on the lookout for offers from Air Canada and Finnair, as they are both options that can get you from Oklahoma to Portugal for a low price.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Oklahoma 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 to Portugal?

    Currently, January is the cheapest month in which you can book a flight from Oklahoma to Portugal (average of $612). Flying from Oklahoma to Portugal in June is currently the most expensive (average of $1,129). 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

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Alternative routes for Oklahoma to Portugal

See prices for flight routes from nearby airports that may be better suited for you.
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Top 3 airlines flying from Oklahoma to Portugal

Discover the top 3 airlines that operate flights from Oklahoma 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 August 2, 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$673Average$1,015FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$683Average$1,181FlexibilityNo cancel feeOn-time71%
British AirwaysCheapest$699Average$873FlexibilityNo cancel feeOn-time70%

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