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$225+ 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 11/30. Fares are subject to change and may not be available on all flights or dates of travel.
OKC — LIS
Oct 16 — Oct 231
Thu 10/16
Thu 10/23
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 September 16, 2025.

Round-trip from

$535
(FlightHub)

One-way from

$225
(Mytrip)

Popular in

June

Cheapest in

December

Average price

$1,193
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. 22% potential increase in price ($282 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease ($38 potential savings vs. average RT price).
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Average for round-trip flights in September 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 September 16, 2025.

This FlightHub deal was found by Cheapflights users on 9/14. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/1312:53 pmTUL - LIS
2 stops20h 47mScandinavian Airlines
Wed 12/34:55 pmLIS - TUL
2 stops37h 04mScandinavian Airlines
Deal found 9/14$535
This United Airlines deal was found by Cheapflights users on 9/14. 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.
Mon 10/207:00 amDFW - OPO
1 stop20h 45mUnited Airlines
Wed 11/512:35 pmOPO - DFW
1 stop17h 24mUnited Airlines
Deal found 9/14$535
This Priceline deal was found by Cheapflights users on 9/14. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/21:55 pmDFW - OPO
1 stop15h 50mIberia
Tue 12/168:20 amOPO - DFW
2 stops19h 15mIberia
Deal found 9/14$554
This United Airlines deal was found by Cheapflights users on 9/14. 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.
Wed 11/127:30 amTUL - LIS
2 stops18h 40mUnited Airlines
Tue 12/211:20 amLIS - TUL
2 stops41h 19mUnited Airlines
Deal found 9/14$557
This Air Canada deal was found by Cheapflights users on 9/14. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/152:24 pmTUL - LIS
2 stops36h 56mAir Canada
Tue 12/211:20 amLIS - TUL
2 stops33h 40mAir Canada
Deal found 9/14$559
This United Airlines deal was found by Cheapflights users on 9/14. 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.
Sat 11/1512:31 pmOKC - LIS
2 stops38h 49mUnited Airlines
Tue 12/211:20 amLIS - OKC
2 stops34h 26mUnited Airlines
Deal found 9/14$559
This Ovago deal was found by Cheapflights users on 9/14. 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 Ovago is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/21:55 pmDFW - OPO
1 stop11h 45mBritish Airways
Tue 12/168:20 amOPO - DFW
1 stop14h 10mBritish Airways
Deal found 9/14$564
This United deal was found by Cheapflights users on 9/14. 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 is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/159:25 amTUL - LIS
3 stops40h 45mMultiple Airlines
Tue 12/211:20 amLIS - TUL
2 stops33h 40mMultiple Airlines
Deal found 9/14$573
This KAYAK deal was found by Cheapflights users on 9/15. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/317:25 pmDFW - LIS
2 stops22h 25mLufthansa
Tue 11/115:00 amLIS - DFW
1 stop15h 25mLufthansa
Deal found 9/15$576
This United Airlines deal was found by Cheapflights users on 9/15. 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.
Mon 10/272:16 pmDFW - LIS
2 stops14h 59mUnited Airlines
Sun 11/165:00 amLIS - DFW
1 stop15h 25mUnited Airlines
Deal found 9/15$577
This United Airlines deal was found by Cheapflights users on 9/15. 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 10/2812:20 pmDFW - LIS
1 stop16h 00mUnited Airlines
Sat 11/155:00 amLIS - DFW
2 stops23h 44mUnited Airlines
Deal found 9/15$578
This Delta deal was found by Cheapflights users on 9/13. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/124:05 pmDFW - LIS
1 stop13h 15mDelta
Sun 11/235:30 amLIS - DFW
1 stop14h 30mDelta
Deal found 9/13$579

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 September 16, 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

Thu 11/13

12:53 pm-3:40 pm

2 stops20h 47m

Lisbon Humberto Delgado

Wed 12/3

4:55 pm-11:59 pm

2 stops37h 04m

$535

DallasPorto

DFW - OPO

DFWOPO

Dallas/Fort Worth

Mon 10/27

2:26 pm-9:30 am

2 stops14h 04m

Porto

Wed 11/12

12:35 pm-11:59 pm

1 stop17h 24m

$535

DallasPorto

DFW - OPO

DFWOPO

Dallas/Fort Worth

Mon 10/20

7:00 am-9:45 am

1 stop20h 45m

Porto

Wed 11/5

12:35 pm-11:59 pm

1 stop17h 24m

$535

DallasPorto

DFW - OPO

DFWOPO

Dallas/Fort Worth

Wed 3/4

7:00 am-9:30 am

2 stops20h 30m

Porto

Tue 3/17

6:00 am-6:56 pm

2 stops17h 56m

$544

DallasPorto

DFW - OPO

DFWOPO

Dallas/Fort Worth

Tue 3/3

7:00 am-9:30 am

2 stops20h 30m

Porto

Thu 3/12

6:00 am-10:40 pm

2 stops21h 40m

$544

DallasPorto

DFW - OPO

DFWOPO

Dallas/Fort Worth

Wed 3/4

7:00 am-9:30 am

2 stops20h 30m

Porto

Wed 3/11

6:00 am-10:40 pm

2 stops21h 40m

$544

DallasPorto

DFW - OPO

DFWOPO

Dallas/Fort Worth

Wed 3/11

2:19 pm-9:30 am

2 stops14h 11m

Porto

Tue 3/17

12:35 pm-11:36 am

2 stops28h 01m

$547

DallasPorto

DFW - OPO

DFWOPO

Dallas/Fort Worth

Wed 3/4

9:55 am-9:30 am

2 stops17h 35m

Porto

Thu 3/12

12:35 pm-10:47 pm

1 stop15h 12m

$547

TulsaLisbon

TUL - LIS

TULLIS

Tulsa

Sat 11/15

9:25 am-8:10 am

3 stops40h 45m

Lisbon Humberto Delgado

Tue 12/2

11:20 am-3:00 pm

2 stops33h 40m

$573

DallasLisbon

DFW - LIS

DFWLIS

Dallas/Fort Worth

Fri 11/7

4:05 pm-5:30 pm

1 stop19h 25m

Lisbon Humberto Delgado

Sat 11/15

5:00 am-7:11 pm

2 stops20h 11m

$583

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/14

Showing 1-10 of 60 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 $1,127). 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 September 16, 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.

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.

  • How long is the flight from Oklahoma to Portugal?

    Airlines like Scandinavian Airlines, United Airlines, and Delta fly from Oklahoma to Portugal in about 14h 04m. The time it takes to get you to your destination can typically vary by up to 6h 43m. Oklahoma and Portugal are separated by a distance of 4688 mi. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

  • 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 Delta and KLM, 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 $1,127). 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 4 airlines flying from Oklahoma to Portugal

Discover the top 4 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 September 16, 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$673Average$980FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$683Average$1,163FlexibilityNo cancel feeOn-time71%
IberiaCheapest$696Average$701FlexibilityNo cancel feeOn-time77%
British AirwaysCheapest$712Average$878FlexibilityNo cancel feeOn-time70%

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