$348 Find Cheap Flights from Oklahoma City to Portugal - Compare and Save

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Oklahoma City to Portugal departing on 12/30. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy, 0 bags

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Cheap Flights from Oklahoma City to Portugal

Cheapest round-trip prices found by our users on KAYAK in the last 72 hours
Lisbon
Lisbon2 stops$737
Faro
Faro2 stops$908
Lisbon
Lisbon2 stops$737
Faro
Faro2 stops$908

Book Cheap Oklahoma City to Portugal Plane Tickets

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Oklahoma City to Portugal that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Oklahoma City to Portugal

Tue, Dec 8 - Thu, Dec 17
United Airlines Logo
5:45 pm - 6:55 amOKC  Oklahoma City Will Rogers World-LIS Lisbon Humberto Delgado
31h 10m2 stops Chicago O'Hare Intl Montreal Pierre Elliott Trudeau Intl
United Airlines Logo
5:00 am - 10:41 pmLIS  Lisbon Humberto Delgado-OKC Oklahoma City Will Rogers World
23h 41m2 stops Frankfurt am Main Chicago O'Hare Intl
$737United Airlines
Mon, Dec 7 - Thu, Dec 10
Air Canada Logo
6:00 am - 10:40 amOKC  Oklahoma City Will Rogers World-LIS Lisbon Humberto Delgado
22h 40m2 stops Denver Intl Montreal Pierre Elliott Trudeau Intl
Air Canada Logo
8:55 am - 6:44 pmLIS  Lisbon Humberto Delgado-OKC Oklahoma City Will Rogers World
39h 49m2 stops Montreal Pierre Elliott Trudeau Intl Chicago O'Hare Intl
$749Air Canada
Mon, Nov 16 - Wed, Nov 18
United Airlines Logo
9:02 am - 10:40 amOKC  Oklahoma City Will Rogers World-LIS Lisbon Humberto Delgado
19h 38m2 stops Denver Intl Montreal Pierre Elliott Trudeau Intl
United Airlines Logo
11:20 am - 10:34 pmLIS  Lisbon Humberto Delgado-OKC Oklahoma City Will Rogers World
41h 14m3 stops Toronto Pearson Intl New York LaGuardia Chicago O'Hare Intl
$753United Airlines
Mon, Nov 16 - Wed, Nov 18
United Airlines Logo
9:02 am - 10:40 amOKC  Oklahoma City Will Rogers World-LIS Lisbon Humberto Delgado
19h 38m2 stops Denver Intl Montreal Pierre Elliott Trudeau Intl
United Airlines Logo
11:20 am - 9:59 pmLIS  Lisbon Humberto Delgado-OKC Oklahoma City Will Rogers World
40h 39m2 stops Toronto Pearson Intl Houston George Bush Intcntl
$753United Airlines
Tue, Oct 27 - Sun, Nov 8
Lufthansa Logo
5:47 pm - 11:30 pmOKC  Oklahoma City Will Rogers World-LIS Lisbon Humberto Delgado
24h 43m2 stops Chicago O'Hare Intl Munich Franz Josef Strauss
Lufthansa Logo
5:00 am - 9:59 pmLIS  Lisbon Humberto Delgado-OKC Oklahoma City Will Rogers World
22h 59m2 stops Frankfurt am Main Houston George Bush Intcntl
$777Lufthansa
Tue, Oct 27 - Sun, Nov 8
Lufthansa Logo
5:47 pm - 11:30 pmOKC  Oklahoma City Will Rogers World-LIS Lisbon Humberto Delgado
24h 43m2 stops Chicago O'Hare Intl Munich Franz Josef Strauss
Lufthansa Logo
5:00 am - 9:59 pmLIS  Lisbon Humberto Delgado-OKC Oklahoma City Will Rogers World
22h 59m2 stops Frankfurt am Main Houston George Bush Intcntl
$779Lufthansa
Sat, Oct 10 - Sat, Oct 17
British Airways Logo
1:37 pm - 6:05 pmOKC  Oklahoma City Will Rogers World-LIS Lisbon Humberto Delgado
22h 28m2 stops Chicago O'Hare Intl London Heathrow
British Airways Logo
6:55 pm - 6:48 pmLIS  Lisbon Humberto Delgado-OKC Oklahoma City Will Rogers World
29h 53m2 stops London Heathrow Chicago O'Hare Intl
$1,071British Airways
Fri, Oct 9 - Fri, Oct 16
British Airways Logo
12:41 pm - 3:35 pmOKC  Oklahoma City Will Rogers World-LIS Lisbon Humberto Delgado
20h 54m2 stops Chicago O'Hare Intl London Heathrow
British Airways Logo
7:20 am - 8:36 pmLIS  Lisbon Humberto Delgado-OKC Oklahoma City Will Rogers World
19h 16m2 stops London Heathrow Chicago O'Hare Intl
$1,071British Airways
Sun, Oct 11 - Sun, Oct 18
British Airways Logo
4:56 pm - 4:25 pmOKC  Oklahoma City Will Rogers World-LIS Lisbon Humberto Delgado
17h 29m2 stops Dallas/Fort Worth London Heathrow
British Airways Logo
7:20 am - 8:47 pmLIS  Lisbon Humberto Delgado-OKC Oklahoma City Will Rogers World
19h 27m2 stops London Heathrow Chicago O'Hare Intl
$1,071British Airways
Wed, Sep 16 - Wed, Sep 23
United Airlines Logo
5:05 pm - 8:05 amOKC  Oklahoma City Will Rogers World-FNC Funchal Madeira
33h 00m2 stops Denver Intl Newark
United Airlines Logo
9:40 am - 11:15 pmFNC  Funchal Madeira-OKC Oklahoma City Will Rogers World
19h 35m2 stops Newark Houston George Bush Intcntl
$1,818United Airlines
Booking Insights

KAYAK's insights & trends for Oklahoma City to Portugal flights

Get data-powered insights and trends into flights from Oklahoma City to Portugal to help you find the cheapest flights, the best time to fly and much more.

What is the cheapest month to fly from Oklahoma City to Portugal?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Oklahoma City to Portugal, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from Oklahoma City to Portugal is March, when tickets cost $451 (return) on average. On the other hand, the most expensive months are July and May, when the average cost of round-trip tickets is $1,996 and $1,229 respectively.

Good to know

Low season

March

Cheapest flight

$348
Best time to beat the crowds with an average 53% drop in price.
Most popular time to fly and prices are also 51% lower on average.
Flight from Oklahoma City to Lisbon

FAQs - booking Portugal flights

  • How does KAYAK find such low prices on flights from Oklahoma City to Portugal?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Oklahoma City to Portugal.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Oklahoma City to Portugal?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight from Oklahoma City to Portugal is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Oklahoma City to Portugal?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly from Oklahoma City to Portugal with an airline and back with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Oklahoma City to Portugal?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying from Oklahoma City to Portugal up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Reviews of the top airlines flying from Oklahoma City to Portugal

 
Need help choosing which airline to fly with from Oklahoma City to Portugal? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
7.4
United AirlinesOverall score based on 10065 reviews
6.7Food
7.3Comfort
8.1Crew
7.1Entertainment
7.7Boarding
Airline reviews

The flight to America was freezing. The overnight flight back to the UK was boiling hot and the cabin stank of toilet or occasionally perfume, even though I was several rows back from either bathroom. Food was tiny portions. Two small pieces of tough and dry beef in random gravy with pretend mashed potato raking up most of it. Very little veg. Salad was ok. Wooden cutlery broke within minutes of using. Lots of old films for entertainment. Some new ones. Generally a bit rubbish.

2.0 MediocreK, Aug 2026
Read more United Airlines reviews

The flight to America was freezing. The overnight flight back to the UK was boiling hot and the cabin stank of toilet or occasionally perfume, even though I was several rows back from either bathroom. Food was tiny portions. Two small pieces of tough and dry beef in random gravy with pretend mashed potato raking up most of it. Very little veg. Salad was ok. Wooden cutlery broke within minutes of using. Lots of old films for entertainment. Some new ones. Generally a bit rubbish.

It was a good experience, unfortunately my checked baggages were come late and not arrived on time.

Very stressful to locate United Airline boarding area, delayed flight, changing boarding area again to another location with all tiredness 😩. But flying was fine.

Staff and flight attendants were very polite. Flight was smooth. My seat on the plane was a bit broken so it would not stay in upright position but it was fine for the most part.

Flight staff and all was fine. Food always sucks on planes so nothing new.

Improve the food offerings and cabin seating. My wife would prefer to fly another airline, even with a connection for a more comfortable trip. A 737-8 should not be scheduled for a 6 hour segment, which turned into 7.5 hours due to the origin ground delay.

OK, I don’t expect much from coach class. Everything basically is pretty lousy. But at least I expect my bloody luggage to get from A to B. Tap Airlines lost my luggage and it has been more than 24 hours in Lisbon and they still have not located my luggage. On top of that, they are incredibly unhelpful. They feel actually dismissive. This lousy customer service.

Food was poorly timed and not good.. Hand held snacks, really. I kept asking for water and never got any. Service was rushed for a 7-hour flight.

Late FA meant slow boarding. WiFi did not work. I’m a medium plus sized passenger. The seatbelt was for the first time ever barely fitting. And we delayed on the tarmac 40 min

Some of these FA’s need attitude check. Snarky bitches

It was not British Air, we were put onto Air Portugal for our London to Lisbon leg.

Horrible leg room - coach seating with empty seat in middle on a 3 across seating. You buy business class for comfort which includes leg room. Absolutely no entertainment options either. Awful experience

The on flight entertainment system touch screen system and the USB charger did not work on multiple seats on least 4 seats an in different rows. The attendant tried to reset the system but was un successful. I couldn't change my phone to get my ticket for my next flight. This was an international flight I changed seats and the problem was the same. the flight attendant offered his power bank

Business class was nothing more than Economy with middle seat empty. Uncomfortable seat and leg room. A mom behind me had a 18 month/2 yr old on her lap, who had his feet on my back all the time- while middle seat remained empty. Pretty much not worth the fare. Very disappointed.

Once again I purchase a business class ticket and the seat is exactly the same as cattle class, the only difference being is that BA install a janky table over the middle seat so there is somewhere to place your complimentary drink, the tray table is just big enough for the small tray, so if you are not concerned about getting fed and watered on the plane or getting access to the BA lounge I would save your money and fly cattle, PS the cabin crew were exceptional in every way, shame about the equipment

Access to movies was nice, food not bad, and landing was smooth. Cramming us in like sardines is not fun. A little more space to bend down to get a bag or not touch my neighbors arm because we’re so close would be better for a 9 hour flight. Whomever designed the seating and you, who bought these planes, clearly are NOT interested in customers’ comfort. So stop pretending you do. Also, if you want traveler’s to check their bags so there is space to store carry one, don’t charge so much to check baggage. Seriously?!

When bussing people to/from the gate, don't pack everyone in like a can of sardines and don't send the bus on its way if the plane isn't ready. Waited for about 40 minutes packed in this bus...both ways!

It was good… always SO many people… I realize that’s how they make money but wow!

The flight was delayed for more than 5 hours. It was a headache trying to wait for the plane after it got delayed over 4 times.

A Perfect 2.5 hr flight. No amenities, but we did not expect any.

Everything you need to know for your flight from Oklahoma City to Portugal

Information on your arrival and departure airports