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Portugal

$270+ 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 8/11. Fares are subject to change and may not be available on all flights or dates of travel.
OKC — LIS
Jun 17 — Jun 241
Tue 6/17
Tue 6/24
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 June 12, 2025.

Round-trip from

$581
(United Airlines)

One-way from

$270
(Air Canada)

Popular in

May

Cheapest in

January

Average price

$1,411
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. 24% potential increase in price ($314 potential increase over avg. RT price).
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Cheapest flight prices on average. 4% potential price decrease ($42 potential savings vs. average RT price).
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Average for round-trip flights in June 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 June 12, 2025.

This United Airlines deal was found by Cheapflights users on 6/10. 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 11/187:30 amTUL - LIS
2 stops19h 50mUnited Airlines
Tue 12/211:00 amLIS - TUL
2 stops40h 54mUnited Airlines
Deal found 6/10$581
This Air Canada deal was found by Cheapflights users on 6/11. 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.
Tue 10/149:25 amDFW - OPO
2 stops20h 05mAir Canada
Sat 10/256:00 amOPO - DFW
2 stops21h 38mAir Canada
Deal found 6/11$625
This Iberia deal was found by Cheapflights users on 6/11. 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.
Tue 10/148:53 amDFW - OPO
2 stops16h 42mIberia
Mon 10/2712:25 pmOPO - DFW
1 stop23h 05mIberia
Deal found 6/11$628
This United Airlines deal was found by Cheapflights users on 6/11. 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.
Sat 8/169:25 amDFW - OPO
1 stop18h 10mUnited Airlines
Thu 8/2812:10 pmOPO - DFW
1 stop15h 25mUnited Airlines
Deal found 6/11$639
This Delta deal was found by Cheapflights users on 6/11. 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.
Tue 10/143:50 pmDFW - OPO
1 stop17h 40mDelta
Thu 10/234:20 pmOPO - DFW
1 stop27h 15mDelta
Deal found 6/11$654
This American Airlines deal was found by Cheapflights users on 6/12. 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.
Mon 8/49:40 pmDFW - OPO
1 stop12h 15mAmerican Airlines
Wed 8/208:15 amOPO - DFW
1 stop17h 55mAmerican Airlines
Deal found 6/12$657
This Orbitz deal was found by Cheapflights users on 6/11. 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 Orbitz is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/92:42 pmDFW - OPO
2 stops23h 53mBritish Airways
Wed 8/208:15 amOPO - DFW
1 stop17h 55mBritish Airways
Deal found 6/11$658
This Delta deal was found by Cheapflights users on 6/9. 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 11/2311:20 amDFW - LIS
2 stops15h 40mDelta
Fri 11/2811:15 amLIS - DFW
2 stops18h 53mDelta
Deal found 6/9$666
This United Airlines deal was found by Cheapflights users on 6/11. 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 12/235:35 pmDFW - LIS
1 stop33h 45mUnited Airlines
Sun 1/411:55 amLIS - DFW
2 stops16h 52mUnited Airlines
Deal found 6/11$668
This Cheapflightsfares deal was found by Cheapflights users on 6/12. 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.
Tue 9/27:45 pmDFW - LIS
1 stop13h 45mMultiple Airlines
Tue 9/912:30 pmLIS - DFW
1 stop13h 40mMultiple Airlines
Deal found 6/12$669
This Virgin Atlantic deal was found by Cheapflights users on 6/11. 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 Virgin Atlantic is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/41:24 pmDFW - LIS
2 stops15h 21mVirgin Atlantic
Wed 8/2010:00 amLIS - DFW
2 stops17h 30mVirgin Atlantic
Deal found 6/11$670
This Lufthansa deal was found by Cheapflights users on 6/11. 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.
Sat 8/164:18 pmDFW - OPO
2 stops24h 27mLufthansa
Fri 8/296:00 amOPO - DFW
2 stops22h 15mLufthansa
Deal found 6/11$676

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 June 12, 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

TulsaLisbon

TUL - LIS

TULLIS

Tulsa

Tue 11/18

7:30 am-9:20 am

2 stops19h 50m

Lisbon Humberto Delgado

Tue 12/2

11:00 am-9:54 pm

2 stops40h 54m

$581

DallasPorto

DFW - OPO

DFWOPO

Dallas/Fort Worth

Tue 10/14

9:25 am-11:30 am

2 stops20h 05m

Porto

Sat 10/25

6:00 am-9:38 pm

2 stops21h 38m

$625

DallasPorto

DFW - OPO

DFWOPO

Dallas/Fort Worth

Tue 10/14

8:53 am-7:35 am

2 stops16h 42m

Porto

Mon 10/27

12:25 pm-6:30 am

1 stop23h 05m

$628

DallasPorto

DFW - OPO

DFWOPO

Dallas/Fort Worth

Sat 8/16

9:25 am-9:35 am

1 stop18h 10m

Porto

Thu 8/28

12:10 pm-9:35 pm

1 stop15h 25m

$639

DallasPorto

DFW - OPO

DFWOPO

Dallas/Fort Worth

Tue 10/14

3:50 pm-3:30 pm

1 stop17h 40m

Porto

Thu 10/23

4:20 pm-1:35 pm

1 stop27h 15m

$654

DallasPorto

DFW - OPO

DFWOPO

Dallas/Fort Worth

Mon 8/4

9:40 pm-3:55 pm

1 stop12h 15m

Porto

Wed 8/20

8:15 am-8:10 pm

1 stop17h 55m

$657

DallasPorto

DFW - OPO

DFWOPO

Dallas/Fort Worth

Sat 8/9

2:42 pm-8:35 pm

2 stops23h 53m

Porto

Wed 8/20

8:15 am-8:10 pm

1 stop17h 55m

$658

DallasLisbon

DFW - LIS

DFWLIS

Dallas/Fort Worth

Thu 9/4

9:25 am-9:20 am

1 stop17h 55m

Lisbon Humberto Delgado

Mon 9/8

11:25 am-6:27 pm

2 stops37h 02m

$668

DallasLisbon

DFW - LIS

DFWLIS

Dallas/Fort Worth

Tue 9/2

7:45 pm-3:30 pm

1 stop13h 45m

Lisbon Humberto Delgado

Tue 9/9

12:30 pm-8:10 pm

1 stop13h 40m

$669

DallasLisbon

DFW - LIS

DFWLIS

Dallas/Fort Worth

Mon 8/4

1:24 pm-10:45 am

2 stops15h 21m

Lisbon Humberto Delgado

Wed 8/20

10:00 am-9:30 pm

2 stops17h 30m

$670

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/11

Showing 1-10 of 53 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 $1,136). 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 June 12, 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.

Rainfall in Portugal by month

Plan your trip to Portugal by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Portugal ranges from 0.2 - 4.8 inches per month. December is typically the wettest month, when rainfall can reach 4.8 in. July is typically the driest time to visit Portugal when rainfall is around 0.2 in.

Temperature in Portugal by month

Plan your trip to Portugal by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Portugal, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 73.4 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 51.8 F).

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 June 12, 2025.
See what other customers who have flown with Delta, KLM and Finnair from Oklahoma to Portugal have to say. In addition to providing an overall rating, users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
7,950 reviews

Food

7.3

Boarding

8.2

Entertainment

7.9

Overall

8.0

Comfort

7.9

Crew

8.5

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
7,950 reviews
Delta
8.0
Very good
7,950 reviews

Food

7.3

Boarding

8.2

Entertainment

7.9

Overall

8.0

Comfort

7.9

Crew

8.5

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
1,358 reviews
Delta
8.0
Very good
7,950 reviews

Food

7.3

Boarding

8.2

Entertainment

7.9

Overall

8.0

Comfort

7.9

Crew

8.5

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
1,290 reviews
Delta
8.0
Very good
7,950 reviews

Food

7.3

Boarding

8.2

Entertainment

7.9

Overall

8.0

Comfort

7.9

Crew

8.5

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!
Air France
7.5
Good
1,463 reviews
Delta
8.0
Very good
7,950 reviews

Food

7.3

Boarding

8.2

Entertainment

7.9

Overall

8.0

Comfort

7.9

Crew

8.5

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
1,623 reviews
Delta
8.0
Very good
7,950 reviews

Food

7.3

Boarding

8.2

Entertainment

7.9

Overall

8.0

Comfort

7.9

Crew

8.5

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 Air Canada, with whom users have recently found tickets for as low as $270. However, be on the lookout for offers from British Airways and United Airlines, 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 $1,136). 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 June 12, 2025.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$635Average$1,082FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$676Average$996FlexibilityNo cancel feeOn-time69%
British AirwaysCheapest$699Average$878FlexibilityNo cancel feeOn-time70%

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